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TROUBLESHOOTING

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3. 3 3 1 e the indoor outdoor operation wiring severed connectors Yes Repair severed wires Remote terminals disconnected No 3 2 controller wires v T Ee i iaki es Correct the short circui wires linking 3 2 Is the indoor outdoor operation wiring short circuited the remote No 33 controller to ss Yes Correct the ground the water heat 3 3 Is the indoor outdoor operation wiring grounded exchanger unit No 3 4 Is voltage being applied to the indoor outdoor operational Yes 3 5 3 4 wiring If no the fuse F001 on the outdoor units main board has blown No 4 1 Replace the water heat Yes exchanger unit s control Repair the wiring properly so that no electrical voltage is board 3 5 applied Is the water heat exchanger unit s control board Reverse the water heat 2P 13 already in use No exchanger unit s control board connectors 2P 12 2P 13 4 Yes Repair the malfunction Outdoor unit 4 1 Has the outdoor unit broken down breakdown No 5 1 5 Yes Set up noise Noise 5 1 Is a source of noise located nearby countermeasures No 6 1 6 Proceed to 6 2 after Water heat having confirmed that 10 Yes ae exchange unit s the wiring and terminals control board 6 1 Is AC200V 10 being applied between R and S on TB1 are normal around TB1 and surrounding Request improvements arga No lto the power facility manager Replace the varister Yes 6 2 Is the vari
4. Operation Data Display No 00 n a i The normal or special display usually appears with key operation used to display current data 1 Normal display Level 0 The following data displays are repeated at 2 second intervals with this outdoor unit system Display sequence Display contents Display examples Remarks 1 System address indoor unit count wlG tLe 8 System 01 20 indoor units 2 Engine operation time i el sys 12 345 hours 3 Engine operation count HEHEH 12 345 times 4 Compressor inlet pressure fe u0 1 MPa 5 Compressor outlet pressure Mal ene 2 0 MPa 2 Total OFF Setting Display Level 0 In normal display state moving the outdoor board STOP switch S001 to the STOP side causes a shutdown ofall units In the normal display state Total OFF is normally displayed as Alu 5 E PAUSE As usual pressing the SET S007 key changing to Level 1 activates the display of operation data 3 Operation Data Display Level 1 In status 1 or 2 pressing the SET S007 key activates the display of the system data 0 Example u DI UD Pressing the SET S007 key gt D Jal AltA Pushing the HOME S004 key for 1 second or more or with no operation for 10 minutes activates the normal display Data is displayed by selecting with the UP S005 and DOWN S006 key
5. settings 00 to 07 2 3 0 8 2 3 oa t 2 3 a e e 0 3 model 2 3 a 4 dii DI d r 0 6 e 3 EAR 10 Region setting Level 2 Rejection conditions Setting start operation method Setting change operation method For u Example Floor Lt it Setting confirm operation method Setting cancel operation method Setting range Not accepted during indoor operation Press the SET S007 key for one second After entering the setting start operation mode operating the UP S005 and DOWN S006 keys makes it possible to change the setting values TEST WARNING LED light When pressing the UP S005 key When pressing the DOWN S006 key After entering the setting start operation or setting change operation completed press the SET S007 key for one second TEST WARNING LED off Press the HOME S004 key for one second before confirming setting 00 to 02 0 Europe ES D s mo C 11 Hot water setting Level 2 Rejection conditions Setting start operation method Setting change operation method 12 Oil change display setting Level 2 13 we el y rm i ut UI Example el y roy m ut Me ho Setting cancel operation method Setting range Not accepted during indoor operation Press the SET S007
6. 67 68 69 70 Thermostat on unit count Units qE gjo 71 Average thermostat on intake temperature C I ayy 72 Average thermostat on discharge C Wel isla temperature 73 Average thermostat on E1 temperature C U3 ES 74 75 Average thermostat on E3 temperature C HE qo e Indoor unit data 1 No 1 indoor unit solenoid value opening Step mt th Blt 64 350 300 480 2 No 1 indoor unit intake temperature C a delzlsje 3 No 1 indoor unit discharge temperature C D aj sE 4 No 1 indoor unit E1 temperature C HEEM 5 6 No 1 indoor unit E3 temperature C T JELET 1 No 2 indoor unit solenoid valve opening Step el tao H be 6 No 24 indoor unit E3 temperature C PB 0E Indoor unit data displays show the data of number maximum 24 units of connected indoor units in the same order V 13 Error Data Display No 1 Level 0 lt nala i iz Error data displays and error resets are conducted Error data including pretrips are stored in the nonvolatile memory for the 3 most recent incidents When an error occurs for the 4 time and beyond the oldest error data is erased and the 3 most recent incidents are stored A profile of error data is as follows e Error code e Outdoor unit operation data at occurrence of error e Outdoor unit operation data at occurrence of error e Outdoor unit warning data 5 seconds before occurrence of error e Outdoor unit warning data 10 seconds before oc
7. De SE Value 1 al 190 Communication collision rate 7 communication usage rate 12 Caution Items other than those described above may appear on this display but they are not related to this model 6 Menu Display Press the UP S005 or DOWN S006 key to select menu items During and after item changes the menu number display appears for about second 0 7 seconds followed by the letter display Selecting an item and then pressing the SET S007 key selects that item The HOME S004 key always displays a a 2 contents will not change during setting When no operations occur for 10 minutes in areas other than item a a DD item io olf D will be displayed contents will not change during setting Menu item Letter display Description mic DD we Operation data display forced setting release data setting nol DOMAGE Error data display Error reset log display d KEN n UO Oo Oil change time display change time clear g njali EIER Model type display double speed setting Z mia fi 4 EIEISIE Test run outdoor unit forced setting mio 5 bhEEloiuk Outdoor unit setting njaj A SJElt da Indoor unit setting njai Sele GE Generator setting e no D B bh EElelBin Forced engine rpm setting P njapa dal fSfe S Indoor unit status display np UD F delle Initial setting najal tt Hepni Date display
8. Data code Data name Display examples Remarks 0 Current error code GB Roo No error 1 Most recent error log code i HK P15 2 Second most recent error log code Ajen A20 3 Third most recent error log code i ROY A04 Ir Mt te Temporary stop cause code 712 GEN Stop log 1 Engine operation time when it Tee occurs Z Yio Fielt P20 4 2 Stop log 2 EK g i Temporary stop cause code 11 4 9 Stop log 9 Se He s 3 5 HJA BE Temporary stop cause code 2 AA Stop log 10 EEN l Bl LPO S P03 AB Stop log 11 dejas e e f EL Alea A20 AC top log 12 TERR 5 error log clear 5 Elije error log clear Note al Stop cause or fault code and stopped engine operation time are displayed alternatively Cause code are listed below No Stop Cause No Stop Cause 1 Temporary stop due to insufficient differential 18 pressure of refrigerant during startup 2 When the discharge temperature is high but the 19 The coolant temperature is high but the 3 way liquid valve is not yet open coolant valve is not completely open 3 When the discharge temperature is high but the 20 Excessive revolutions in the advantage mode engine speed is still too high 4 When the high pressure area is high but the fan 21 Momentary stop due to compressor oil return output is still too low control of the renewal unit 5 When the high pressure area is high but the engine 22 Momentary stop due to refrigerant 3 way valve spee
9. Y Compressor 1 1 check for compressor lock Locked SEET lock Both clutch 1 and clutch 2 are off so be sure to turn the N om center of the pulley and not just the perimeter G 2 Use a contact thermometer to measure the temperature of o OK Investigate furth Clutch coil 21 the back of the pulley Is this temperature nearly identical 9 Seel sensor within 10 C to that of clutch 1 and clutch 2 coil of the NG 2 2 outdoor main board Is there a ground fault or short circuit in wiring between Yes Repair wiring 2 2 outdoor main board connector 2P blue CNO60 and 2P i Replace clutch coil o yellow CN064 and their respective clutch coil sensors sensor e For board and Electrical Wiring Diagram see Chapter 6 e Outdoor main board page VI 2 e Outdoor power board page VI 3 e Converter board VI 4 e Indoor control board for DC motor models page VI 5 e Outdoor Unit Electrical Wiring Diagram page VI 6 e 2 1 CL2 clutch 2 CL clutch See Chapter 5 for procedure to view clutch and clutch 2 coil temperature on the outdoor main board IV 25 A26 Flameout Error Error detection method e An error is determined when the engine revolution speed fluctuates widely during engine operation The engine is stopped and an error flag is set A flameout error is assumed when this flag has shut down the engine 5 consecutive times in hour Troubleshooting 1 l Y
10. Eco electrical Previous Name previous name Applicable wire code code p standard Heat resistant polyethylene insulated heat resistant polyethylene SE VEIE sheath cabtire round cord Vinyl cabtire round cord Ge ECO120 VCT Heat resistant polyethylene insulated heat resistant polyethylene JCS4501 sheath cabtire round cable Vinyl insulated vinyl cabtire cable JIS C 3312 EM MEE S MVVS Heat resistant polyethylene cord for use with covered microphones JCS4271 Vinyl cord for use with covered microphones Note Either block out the light or use UV resistant cables if wiring is affected by ultraviolet rays sunlight lighting etc e Cable thickness 0 5mm 2mm e Insulated length e Maximum 500 m for the entire cable length 400 m when wireless remote controllers and simple remote controllers equipped with backlights are used within the group e Maximum 200 m for the entire cable length between indoor units L L L L Max 200 m MAX8 Indoor unit 1 Indoor unit 2 Indoor unit3 Indoor unit 8 Remote controller e Precautions 1 2 E p COND 10 Do not lay signal cables next to power line in order to prevent miss operations Maintain a distance of 50 mm or more between the power lines of other air conditioning units manufactured by Panasonic Maintain a distance of 300 mm or more between other power lines In the event of the cables needing to be laid within the above mentioned
11. O 5004 HOME Q HOME Q Cancel settings When ignition timing correction is finished cancel the forced rotational speed setting and the distributor mode Make sure to do this 1 Press the HOME key S004 for one second or more Im Menu item number no right figure will be displayed J am o 2 Press the UP S005 or DOWN S006 key displaying the menu item numbers Select menu item not D052 UP 005 DOWN 008 SET 5007 O g O 5004 HOME Q in the figure below The display 5Ekr Fn figure below will appear ri Li J J IL DOWN SET 006 007 UP 005 DOWN 008 SET 5007 O 5004 HOME Q O O 5004 HOME Q 3 Press the SET key S007 The LEVEL LED D053 and TEST WARNING LED D052 will light and the status with the engine rotating at the forced set speed will be displayed at one second intervals as shown below Display Item if rupp 10 1400 Forced engine rotational speed example 1400 min it iH g D 11 1400 Engine rotational speed example 1400 min 2 45 6 12 0 56 Compressor inlet pressure Example 0 56MPa ia 5 6 13 0 56 Compressor outlet pressure Example 0 56MPa 15 685 6 15 85 0
12. 6 Error log clear Clears all of the error log and temporary stop causes for this outdoor unit SJA rj Sl CiL ir ALLL Lr 3 5 clearing complete 7 Error alarm code list Operation method Press the SET S007 key for one second ere Error Alarm Contents SC Error Alarm Contents A00 No error occurred System F Defective sensors memories and other parts System A Engine system protective device F01 Indoor unit heat exchanger inlet temperature operation sensor error A01 Engine oil pressure error E1 sensor error when the water heat exchanger A02 Engine oil error unit is connected A03 Engine high revolution error F02 Anti icing sensor error when the water heat A04 Engine low revolution error exchanger unit is connected A05 Ignition power supply error FO3 Indoor unit heat exchanger outlet temperature A06 Engine start failure sensor error A07 Fuel gas valve error E3 sensor error when the water heat exchanger A08 Engine stall unit is connected A10 High exhaust gas temperature F04 Compressor outlet temperature sensor error A11 Engine oil level error FO6 Outdoor unit heat exchanger inlet temperature A14 Engine oil pressure switch error sensor error A15 Starter power supply output short circuit Outdoor unit heat exchanger 2 inlet temperature A16 Starter lock sensor error 3WAY only A17 CT error starter
13. Error detection method An error is determined when multiple main master units exist within a remote controller group control e When remote controller group wiring is changed after auto addressing is complete e When multiple main units are set in remote controller detailed settings mode Troubleshooting 1 Yes 1 2 Remote 1 1 Remote controller group wiring routed as intended N 13 Oo controller group wiring 4 2 In remote controller detailed settings mode set one main unit 1 in group settings item code 14 Then either manually set all others as sub units 2 or repeat auto addressing 1 3 After repairing remote controller group wiring repeat auto addressing process e See 5 Reference Document for detailed remote controller settings IV 68 L04 Duplicate System Outdoor Unit Address Setting Error detection method An error is determined when identical system outdoor unit addresses exist within the same link wiring e When the system outdoor unit address settings were forgotten during link wiring e When the system outdoor unit address settings were accidentally duplicated during link wiring e When link wiring was performed with a water heat exchanger unit connected Troubleshooting 1 Check to ensure that unique system addresses has been set for each outdoor unit connected System 1 1 to the same link wiring indoor outdoor operati
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15. Press the SET S007 key for one second in the setting data code select mode This activates the forced setting in progress display TEST WARNING LED light After entering the setting start operation mode operating the UP S005 and DOWN S006 keys make it possible to change the setting details of the selected setting categories After entering the setting start operation or setting change operation completed press the SET S007 key for one second This cancels the forced setting in progress display making it possible to once again enter the outdoor unit setting item selection operation mode TEST WARNING LED off Press the HOME S004 key for one second before confirming setting This returns operation to normal TEST WARNING LED off The setting details will not change when pressing the HOME S004 key for 1 second during outdoor unit setting item select operation 4 Outdoor Unit Setting List 1 Data code Data Data code Data 00 70 S 71 3F 72 40 73 41 74 42 Minimum set revolution speed 75 43 Maximum set revolution speed 76 44 Oil change time display switch 77 Mixer offset 78 79 7A 7B 45 7C 46 Automatic cooling heating mode 7D 47 7E 48 7F Engine linked operation time setting 49 80 4A 81 4B 82 4C 83 Reference system 4D 84 Cooler heater auto control 4E 85 Revolution speed differential reference 4F 86 50 a1 Cooling high pressure offset 87 ji 51 a2 Heating high pressure offset
16. e When group settings for an indoor unit wired into a remote controller group are changed to Independent in remote controller detailed settings mode Troubleshooting 1 1 1 Remote controller group wiring routed as intended Yes 1 2 Remote No 1 3 controller group wiring 1 2 In the remote controller detailed settings mode check the group settings item code 14 If set to Independent 0 correct it or repeat auto addressing process 1 3 After repairing remote controller group wiring repeat auto addressing process e See 5 Reference Document for detailed remote controller settings IV 71 L08 Indoor Unit Address Not Set Error detection method An error is determined when the indoor unit capacity is not set e When the indoor unit address was not set when new non volatile memory EEPROM was installed e When indoor unit address in the remote controller detailed settings mode is invalid Troubleshooting 1 Indoor unit Set address 1 1 Use the remote controller detailed settings mode to check indoor unit addresses item code 13 and set an indoor unit address to replace invalid 0 ones e See 5 Reference Document for detailed remote controller settings IV 72 L09 Indoor Unit Capacity Not Set Cannot be detected when the water heat exchanger unit is connected Error detection method An error is determined when the indoor u
17. iv Dp a Display the current 88 ignition timing offset value and check it The current value is zero 0 The display for HE D will be as shown at right With BB ignition timing offset displayed press the SET key S007 for one second or more The TEST WARNING LED D052 will light and LEVEL LED D053 will flash Press the UP S005 or DOWN S006 key to set a correction of 2 in relation to the current value checked in ii The display will show BE right figure Caution The display example at right is an example for when the current value checked in i is zero 0 If the current value is 1 and a 2 correction is set in relation to that value the value will become 3 after the setting is made The display will show BD 3 figure below right With KE d right figure displayed press the SET key S007 for one second or more The TEST WARNING LED D052 will go out and LEVEL LED D053 will light The ignition timing offset mode will be cancelled and the setting process will be ended 1 LI DOWN 006 SE 5007 O O HOME pos3 5004 HOME Q D052 UP DOWN SET O GE 008 5007 o o o o 5004 HOME Q Correction example b The adjustment va
18. side causes the forced shutdown of the gas solenoid valve However when cranking is carried out with the gas valve closed it immediately stops at A07 Therefore when measuring engine compression or for other purposes use GASOFF fuel gas solenoid valve forced closing setting of test run and forced setting function No 4 TEST VG 002 OG lk NORM S010 Terminal resistor On Off switch e This switch is used for matching on communication lines e When only one outdoor unit is connected to a single communication line confirm that the setting is on the SHORT side e The factory setting is SHORT e When more than one outdoor unit is connected to a single communication line always set one unit to the SHORT side and the rest of the outdoor units to the OPEN side apo CO Jose Caution Setting the terminal resistor switch for multiple outdoor units to the SHORT side can cause communication flaws The 7 segment LED e This LED indicates the operating status of indoor and outdoor units changes in set values and various other displays using switches S004 to S007 e The 7 segment LED has 6 digits Indoor Outdoor communications LED D043 e The communications monitor LED for use between outdoor and indoor units N A V 4 3 Display Component Specifications 5005 S006 004 HOME O el O DOSS Warning display red During warnin
19. 2 8KQ 120 C 2 15KQ 130 C 1 66kQ IV 83 P04 Refrigerant High Pressure Switch Operation Error detection method e When high pressure switch turns OFF Setting 4 15MPa Turns ON when contact is not defective switch automatically resets Troubleshooting 1 i Yes 1 2 Model 1 1 Is the outdoor unit a renewal dedicated unit No 2a setting check Is the model setting correct Is the parameter a renewal Yes 2 1 1 2 setting f f Check to make sure the setting is No 10FirSt rEF02 No Revise settings 2 Yes 3 1 Operation 2 1 Are operations possible possibility No 3 2 3 3 1 Measure the high pressure to discover if it is high Are Yes Refer to section P20 High malfunctions occurring No 3 2 pressure switch Is the high pressure switch conducting Is there conduction yg Replace the outdoor 3 2 Un the high pressure switch side when the 63PH4P white unit s power board CN014 connector on the outdoor unit s power board is No Replace the high disconnected pressure switch e For board and Electrical Wiring Diagram see Chapter 6 e Outdoor main board page VI 2 e Outdoor power board page VI 3 e Converter board VI 4 e Indoor control board for DC motor models page VI 5 e Outdoor Unit Electrical Wiring Diagram page VI 6 Reference Electrical Wiring Diagram A B 3 IV 84 P05 Power Source Error Error detection method An error is
20. V45 Correction for distorted amount If the value is different than that displayed by DD engine ignition timing set in item above select BE ignition timing offset in na D5 engine settings and correct for the distorted amount 1 Press the HOME key S004 for one second or more Menu item number na displayed on hb D 2 Press the UP S005 or DOWN S006 key displaying the menu item numbers Select menu item no right figure will be DOWN s006 SET 5007 O in the figure below The display SEE out figure below will appear LI DOWN 006 SET 5007 O O HOME Q 3 In this state press the SET key S007 The display will change to Di D and the LEVEL LED D053 will light 4 Next press the UP S005 or DOWN S006 key to display H right figure LI L DOWN s006 SET 5007 O O DOWN s006 SET 5007 O CO HOME Gees D on D ignition timing offset 5 Make the correction Correction example a The adjustment value is 10 BTDC but the observed value was 8 BTDC Press the UP S005 or DOWN S006 key to set a correction of 2 in relation to the current BB ignition timing offset value i ii iii
21. and No 3 and No 4 and No 6 board Is the voltage between the following terminals of the outdoor Yes Replace outdoor main 2 2 main board connector 6P red CN049 appropriate for the board pressure N 2 3 No 2 and No 3 and No 5 and No 6 eE Wiring connection contact poor or wire broken between Yes Repair wiring 2 3 outdoor main board connector 6P red CN049 and compressor inlet outlet pressure sensors No Replace pressure sensor e For work procedure for replacing outdoor main board see 5 Reference Document e For board and Electrical Wiring Diagram see Chapter 6 e Outdoor main board page VI 2 e Outdoor power board page VI 3 e Converter board VI 4 e Indoor control board for DC motor models page VI 5 e Outdoor Unit Electrical Wiring Diagram page VI 6 Perform from outdoor main board Issue V OPEN command from Maintenance Panel Menu 4 then press the Set key S005 to light the LED The valve opens Press again to turn off the LED and the valve closes Compressor outlet pressure sensor 324 3 2 1 Black Red Orange Black Red 6 5 4 3 2 1 sp wnite Compressor inlet LLLA b A t 444 TTTTTTT pressure sensor 4 5 Ab S S 3 oO D g 5 Zr gt Brown 2 14 Di oO Gr He g 5 1 4 4 D 2 Compressor inlet pressure MPa Compressor outlet pressure MPa vow O 5 0MPa 0 5 0MPa Wi V i V O5 45 V
22. 2 200 min A3 Engine revolutions min Daaann 2 200 min A 3 Compressor inlet pressure MPa RIAL E tit 10 10 MPa AA Compressor outlet pressure MPa Du dalal 1 00 MPa Ab Compressor inlet temperature C RIS 13 50 35 0 C A 6 Compressor outlet temperature C RB too 110 0 C A 7 Outdoor unit fan 1 A Eo 100 A 8 Outdoor unit fan revolutions 1 min AEL pp 650 min A 9 Coolant pump revolutions min ABANO 3 700 min A A Throttle Step ALAL DD 100 steps Ab Fuel gas regulating valve Step Rib 13 3 50 330 steps A C Liquid valve Step HL gg 220 steps A d Bypass valve Step Hd tilt 100 steps A E Outdoor unit solenoid valve 1 Step HE HIET 480 steps A F Outdoor unit solenoid valve 2 Step RIF Iup 480 steps A G Revolution speed variable F_rpm ALE he 03 A H A i Engine ignition time Degree Ala ID 10 degrees e Outdoor Unit Data 10 Seconds Earlier b 1 to b i es Data name Unit bauer Remarks b 1 Engine revolution setting min OCHHME l Same as the outdoor unit data 5 seconds earlier b i Engine ignition time Degree bL E e Outdoor Unit Data 15 Seconds Earlier C 1 to C i Ges Data name Unit ees Remarks C 1 Engine revolution setting min MEHHME t Same as the outdoor unit data 5 seconds earlier C i Engine ignition time Degree ELLIT pia Note The data during normal display will be displayed with the same digits but there are cases in which accuracy is deteriorated V 19
23. 3 Set Gen generator parameter on the No 10 First outdoor unit initialization settings to 1 generate power IV 28 A29 Converter Error for only High Power Multi Error detection method Converter Error is assumed when an error occurs in the converter e When wires are broken or short circuit has occurred in converter elements e When a converter circuit is damaged e When the TR temperature sensor and generator temperature sensor connectors are not connected to the converter board Troubleshooting 1 Connector check 1 1 Are the TR temperature sensor and generator temperature sensor connectors connected to the converter board Yes Replace the converter No Connect the connector e Itis possible to perform back up operations operations as a standard unit with the following operations during break downs 1 Disconnect the generator belt 2 Disconnect all converter wires 3 Set Gen generator parameter on the No 10 First outdoor unit initialization settings to 3 no generator e Perform the following operations to restore the unit to generate power normal high power function operations 1 Install a generator belt and check the tension see the Regular Replacement Manual 2 Reconnect off converter wires 1 and 2 are only used when replacing parts and during back up operations 3 Set Gen generator parameter on the No 10 First outdoor unit initialization set
24. 3 5 and No 6 when the magnet switch is turned on No 3 6 3 5 Are there any defective wiring connections contacts or severed wires between the magnet switch and the starter power source s relay connector 2P 6 white Repair wiring Yes 3 7 3 6 Is approximately AC200V being applied between the magnet switch No 1 and No 5 No Check primary wiring Repair f ves Replace the 3 7 Is approximately AC200V applied between the magnet switch A1 and magnet switch A2 when the magnet switch is turned on No 3 8 Are there any defective wiring connections contacts or severed Yes Repair Wiring 3 8 wires between the outdoor unit s power board connector 3P yellow CN028 and the magnet switch No 3 9 Replace the Yes outdoor unit s 3 9 Is approximately AC200V being applied between the outdoor unit s power board power board connector 3P white CN002 No 1 and No 3 Check the No relevant wiring and filter board 4 4 4 e DC10V or more applied between the starter B terminal and Yes 4 2 Starter engine ground when the magnet switch is on No 4 3 starter relay Ee e i eplace the outdoor unit 4 2 e DC10V or more applied between the starter S terminal and Yes SCHER main board engine ground when cranking is started No 4 5 4 3 S DC10V or more applied between the starter power source and Yes 4 4 when the magnet switch is on No 3 3 Are there any defective wiring connections contacts between
25. 6 when the power is on during No outdoor unit s positioning main board e For work procedure for replacing outdoor main board see 5 Reference Document e For board and Electrical Wiring Diagram see Chapter 6 e Outdoor main board page VI 2 e Outdoor power board page VI 3 e Converter board VI 4 Indoor control board for DC motor models page VI 5 e Outdoor Unit Electrical Wiring Diagram page VI 6 IV 6 A05 Ignition Source Error Error detection method When the starter power output meets the following conditions an error is detected upon 5 consecutive occurrences in one hour e When an ignition voltage decrease is detected for 2 5 seconds or more e During cranking when I lt 3 8A is detected for 4 seconds with no revolution pulse Note The starter power source magnet switch 52S operation is as follows e When power is turned on 52S turns ON upon operation signal input If no abnormalities occur thereafter A15 A16 A17 this stays ON and turns OFF upon stop signal input e Turns OFF when error occurs Troubleshooting Try operating the outdoor unit e When the starter power source magnet switch 52S does not turn ON Go to 1 1 e When the starter power source magnet switch 52S turns ON and then turns OFF after 3 seconds Go to 2 1 e When the starter power source magnet switch 52S turns ON but the starter does not turn ON Go to 4 1 1 Yes R
26. C f BSID 60 83 55 83 21 Outside air temperature C ce d BD 22 Clutch coil temperature C SIHD 23 Catalyst temperature C d 5 i 24 Hot water outlet temperature optional C d au 25 26 Been temperature C 3 Te 30 100 30 100 27 28 29 30 31 Clutch coil 2 temperature C 30 90 30 90 32 33 34 Exhaust gas temperature 2G 45 90 40 80 35 36 37 38 Outdoor unit fan 1 3 8 a 0 121 0 121 39 Outdoor unit fan 2 g ut 0 121 0 121 40 Outdoor unit fan revolutions 1 min i JSE 0 680 0 680 Outdoor unit fan revolutions 2 min j 8 55 0 680 0 680 Coolant pump setting min YHN 3700 3700 Coolant pump revolutions min 4Sa pt 3700 3700 Throttle Step viel oe Fuel gas regulating valve Step 4j Ja jalt Liquid valve Step 4E elejt 0 100 0 480 Bypass valve Step a daf 20 20 Outdoor unit solenoid valve 1 Step Sa HELE 480 0 480 Outdoor unit solenoid valve 2 Step S 4 HELE 480 0 480 Three way coolant valve Step SIE RAEIKEUA 50 50 1950 Exhaust heat collection valve Step 5 3 2 o 6 0 80 480 eeng hot water extraction valve Step Su em 50 1950 50 1950 55 Revolution speed variable F_rpm 5 W 0 10 0 10 56 57 58 Compressor oil level W Multi 59 Engine load ratio 0 6 0 6 60 Engine ignition time Degrees 8 40 8 40 61 Cylinder number during flameouts 62 63 64 65 Gas demand control value m h 66
27. Is the voltage between No 1 2 5 V 1 6 Check the indoor control board and replace if defective e For board and Electrical Wiring Diagram see Chapter 6 e Outdoor main board page VI 2 e Outdoor power board page VI 3 e Converter board VI 4 e Indoor control board for DC motor models page VI 5 e Outdoor Unit Electrical Wiring Diagram page VI 6 e See instructions packaged with servicing indoor board for procedure on replacing indoor control board e 1 3 1 4 IV 89 P13 Refrigerant circuit Error W MULTI Please note that 3WAY models use a different troubleshooting procedure Error detection method e The indoor unit outputs this warning when it determines that a compressor inspection is required e The system stops and there is no automatic reset when this warning is output When there is no difference between compressor outlet and inlet pressure lt 0 2 MPa 3 minutes after the engine was turned on the engine stops and an error flag is set An Cooling Circuit Fault is assumed when the error flag has stopped the engine 5 consecutive times in hour This indicates that the difference in initial pressure and after 3 minutes is 0 2 Mpa or less Troubleshooting 1 1 1 Turn off the outdoor unit be sure to do this before work yi ceased 4 2 Use the instructions in A25 Clutch Trouble to adjust the Yes 2 1 H i compressor lock Does it lock Adjust both clutch 1
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29. Or is the power cable severed or the connection faulty No Repair the power cable Is the coolant pump locked or are there any severed wires Yes 3 1 2 2 poor contacts or short circuits Replace the coolant Coil resistance should be around 14 18Q for each phase No pump 3 Has air entered the coolant circuit Yes 4 1 Coolant circuit 3 4 There is a chance of air having entered the circuit if there is a slight banging noise and pump revolutions are No Perform an air purge fluctuating during coolant pump operations 4 Outdoor unit s power board 4 1 Replace the outdoor unit s power board and keep an eye on the situation Replace the coolant pump if the problem reoccurs e For board and Electrical Wiring Diagram see Chapter 6 e Outdoor main board page VI 2 e Outdoor power board page VI 3 e Converter board VI 4 e Indoor control board for DC motor models page VI 5 e Outdoor Unit Electrical Wiring Diagram page VI 6 Reference Electrical Wiring Diagram A B 3 IV 23 A23 Crankshaft Angle Sensor Error A24 Camshaft Angle Sensor Error Error detection method When input from the sensor meets the following conditions an error is determined upon 5 consecutive occurrences in 1 hour e When starter current was detected during cranking but crank angle sensor input is not detected for 2 continuous seconds e When starter current was detected during cranking but cam angle sensor input is not d
30. Outdoor power board page VI 3 Converter board VI 4 Indoor control board for DC motor models page VI 5 Outdoor Unit Electrical Wiring Diagram page VI 6 e See instructions packaged with servicing indoor board for procedure on replacing indoor control board IV 34 SW1 f J E E LU VU OFF 1 2 3 4 5 6 7 8 t Central control main sub switch Central control main sub switch Main OFF Main OFF Sub ON Sub ON Multi Controller System Controller IV 35 2 When the water heat exchanger unit is connected 1 Yes 2 1 Remote 1 1 Is power being supplied to the remote controller controller N Switch on th power o witch on the power 2 Yes 2 2 Remote 2 1 Has an address been set on the remote controller No Set the address controller v Ee es 2 parallel 2 2 ls the address set in the remote controller in series array No Seta serial number address Y 2 4 2 3 Do the address on the remote controller and on the water heat Yes exchanger unit match up No Match up the addresses Yes 2 5 2 4 Does the number of addresses on the remote controller match up with the number of water heat exchanger units No Match up the number of connected units _ Yes 2 6 2 5 Is the parallel array address on the water heat exchanger unit set at anything other than 0 No Set any parallel array address other than 0 _ Yes 3 1 Is the par
31. When controlling with two remote controllers and the wireless remote controller is N 4 5 the main set the other remote controller as the main 9 j 4 4 Replace the removed option board or wireless remote controller operating unit wiring and all GER Yes 4 8 4 5 ls the LED D002 blinking on the indoor control board N a7 Oo Nonvolatile memory EEPROM on the outdoor main unit is not inserted is incorrectly 4 6 inserted or is defective Correct or replace nonvolatile memory and program it in the remote controller properties setting mode yes Replace outdoor main 4 7 Is E4 displayed on all remote controllers for other indoor units board connected to this outdoor unit N Replace indoor control o board IV 37 The designation is used in the table to indicate indoor boards for DC and AC motor models There is no TEST pin on the indoor board for AC motor models For board and Electrical Wiring Diagram see Chapter 6 e Outdoor main board page VI 2 e Outdoor power board page VI 3 e Converter board VI 4 e Indoor control board for DC motor models page VI 5 e Outdoor Unit Electrical Wiring Diagram page VI 6 See instructions packaged with servicing indoor board for procedure on replacing indoor non volatile memory EEPROM and replacing indoor control board See 5 Reference Document for checking remote controller 2 When the water heat exchanger unit is
32. e Converter board VI 4 e Indoor control board for DC motor models page VI 5 e Outdoor Unit Electrical Wiring Diagram page VI 6 A04 Engine Low Revolution Error Error detection method e When engine revolution speed drops to 700min or less continuously for 3 seconds during engine operation complete combustion an abnormal flag is set and the engine stops An Engine Speed Too Low condition is assumed when the error flag has stopped the engine 5 consecutive times in hour Troubleshooting Go 1 1 Has the fuel gas pressure dropped Is the fuel empty Ge Se s Yes 3 1 Check 21 Measure actual revolution speed using a revolution meter Are the revolution revolutions low speed No 4 1 Eer 3 1 _ Is the throttle valve operating 4 Check the ignition coil cam angle sensor and crank angle sensor Ignition Check the ignition coil Remove the connectors from the ignition OK 5 1 pulse ws coil one by one during operations It is normal if changes in operational status such as lowered revolutions occur Cam angle amp crank angle sensors Refer to A23 and A24 for NG Restore inspections 5 Any poor connections poor contacts or severed wires between the Yes Repair Wiring Wiring 5 1 throttle step motor wiring and connector Wiring from outdoor main board connector 6P black CNO66 to throttle step motor No 8 1 GZ 6 1
33. group settings item code 14 Multiple main units 1 or any independent 0 settings No 3 1 Ke g 2 4 2 3 Remote controller group wiring routed as intended Ee 2 4 Repeat auto addressing process 2 5 After repairing remote controller group wiring repeat auto addressing process 3 3 1 san option board CN060 or wireless remote controller Yes 3 2 Indoor CN041 connected to the indoor control board No 3 4 control board Does E18 disappear several minutes after disconnecting said Yes 3 3 3 2 connector on the indoor control board When controlling with two remote controllers and the wireless remote controller is N 3 4 the main set the other remote controller as the main Q E 3 3 Replace the removed option board or wireless remote controller operating unit wiring and all 3 4 Replace indoor control board The designation is used in the table to indicate indoor boards for DC and AC motor models There is no TEST pin on the indoor board for AC motor models See 5 Reference Document for checking remote controller For board and Electrical Wiring Diagram see Chapter 6 e Outdoor main board page VI 2 e Outdoor power board page VI 3 e Converter board VI 4 Indoor control board for DC motor models page VI 5 e Outdoor Unit Electrical Wiring Diagram page VI 6 e See instructions packaged with servicing indoor board for procedure on replacing indoor control board IV 53 E20 No Indoor Unit in Automatic A
34. gt There will not be any problem whether the circuit breaker of the outdoor unit in lt lt Step 3 gt gt is ON or OFF Select one of them according to the work required Work example Perform maintenance on W MULTI outdoor unit 2 in refrigerant system 1 in Figure 1 a For the W MULTI outdoor unit 2 indicated in the left diagram perform Refrigerant System 1 e g lt lt Step 1 gt gt to lt lt Step 3 gt gt in Backup operation procedure in that order D 5 _ Refrigerant tubing Outdoor Then perform maintenance work on W MULTI outdoor unit 2 2 branch tubing b When lt lt Step 3 gt gt is finished W MULTI outdoor unit is reset Il stop gs even if it is operating Be c After approximately five minutes if there is operation input indoor ZS remote controller is Run or test run setting on outdoor main board W Multi outdoor unit 1 starts up Backup operation starts W MULTI W MULTI d If test run is set from outdoor main board W MULTI outdoor unit 1 outdoor unit outdoor unit continues to run However if normal operation is started by the indoor 1 2 remote controller depending on the load all outdoor units may stop due to thermostat off Indoor outdoor operation wiring lt Procedure 1 gt lt Procedure 2 gt lt Procedure 3 gt System recovery procedure If backup operation has been performed by all means check the following items after the maintenance work and
35. key for one second After entering the setting start operation mode operating the UP S005 and DOWN S006 keys makes it possible to change the setting values TEST WARNING LED light When pressing the UP S005 key When pressing the DOWN S006 key Setting confirm operation method After entering the setting start operation or setting change operation completed press the SET S007 key for one second TEST WARNING LED off Press the HOME S004 key for one second before confirming setting 00 to 99 0 1 99 No discharge Hot water discharge thermostat off temperature to K LE E cI LD LD o as Rejection conditions Setting start operation method Setting change operation method Pn Iw f Li Example rm re J KERK Setting cancel operation method Not accepted during indoor operation Press the SET S007 key for one second After entering the setting start operation mode operating the UP S005 and DOWN S006 keys makes it possible to change the setting values TEST WARNING LED light When pressing the UP S005 key When pressing the DOWN S006 key Setting confirm operation method After entering the setting start operation or setting change operation completed press the SET S007 key for one second TEST WARNING LED off Press the HOME S004 key for one second before
36. nonvolatile memory Nonvolatile memory IC socket e Because the legs are easily bent be careful when removing or plugging in the memory 3 Turn on the power supply 4 At the initial setting match outdoor unit capacity models etc to the outdoor models 5 For subsequent outdoor unit settings set the other parameters to the best of your knowledge 6 Confirm operation 7 Always be sure to readjust engine ignition timing 2 Switch and LED S004 S005 S006 S007 HOME UP DOWN SET e These switches are used to perform7 segment LED service display changes and type settings e These key switches are used to determine maintain operation of various items raise and lower items being displayed etc 0052 UP OOWN SET 005 S006 007 004 HOME oo S001 All stop switch e This switch is used to terminate all the units at the same time e Moving this switch to the Stop side executes all units to stop and is thus used during maintenance and other occasions when it is necessary to have the units not operate e The switch is set to STOP at the factory before shipment and thus needs to be switched to the NORM side for test run NORM STOP STOP SW e For W MULTI system For W MULTI system total off can be set to each outdoor unit individually Outdoor units without total off set operate as outdoor units with CCU function Caution Because outdoor units set to total off have their valves op
37. oiL Oil Change Time Alarm Error detection method When the oil change time exceeds the EEPROM setting 200 hours A02 warning is issued when EEPROM time setting is exceeded Note e Engine does not stop with warning e No warning detection when the gas type setting is 1 e When warning is issued Check Oil flashes on remote controller display Troubleshooting It is time to change the engine oil After changing the oil reset the oil change time on the outdoor main board IV 106 5 Reference Document 1 Outdoor Main Board Replacement Sequence and Remote Controller Service Function Outdoor Main Board Replacement Sequence To replace the outdoor main board perform the work through the following sequence 1 Turn off the power supply and replace the outdoor main board 2 Transfer the nonvolatile memory EEPROM from the old board to the new board e Because engine operation time oil check time and other data as well as the various setting values are stored in the nonvolatile memory EEPROM inside the outdoor main board when replacing the outdoor main board the nonvolatile memory needs to be removed from the old board and transferred to the new board e The operation data setting values and other information will be carried over into the new board Handle the nonvolatile memory with care Because the nonvolatile memory needs to be installed in a certain direction see diagram below be careful to correctly con
38. 0 5 4 5V IV 61 F20 Clutch Coil Temperature Sensor Error Error detection method e Detected in the following situations Broken wire detected Sensor resistance exceeds 1800kQ Short circuit detected Less than 850Q Troubleshooting 1 Check sensor Disconnect outdoor main board connector 2P blue CN060 Yes Replace sensor 1 1 or 2P yellow CNO64 and measure resistance between the wires Is it 1800 kO or more No 1 2 Yes Replace sensor 1 2 Measure resistance between CNO060 wires Less than 8500 N Replace outdoor main o board e For work procedure for replacing outdoor main board see 5 Reference Document CL2 clutch 2 CL clutch IV 62 F29 Indoor Nonvolatile Memory EEPROM Error Error detection method e An error is determined when the nonvolatile memory EEPROM on the indoor water heat exchanger unit control board cannot be read or written Troubleshooting 1 Nonvolatile memory Is the nonvolatile memory on the indoor water heat exchanger Yes 1 2 1 1 unit control board correctly oriented in the IC socket and inserted firmly No Repair o Yes Defective EEPROM 1 2 Replace the nonvolatile memory provided with the servicing board Does this eliminate the error No Replace indoor control board e See the instruction manual supplied with the Servicing Indoor Board for details on the proce
39. 4 1 Model with drain float switch built in Yes 1 3 No 1 2 4 2 Check for poor contact or broken wire in Indoor control board connector FS red CN034 CNO030 1 3 wiring connector Repair Yes 1 4 1 3 Drain water overflowed No 1 8 4 4 Drai iina Yes 1 10 rain pump operating PEE S No 1 5 Yes Replace drain pump 1 5 ls AC200V applied to drain pump No 1 6 Yes 1 7 1 6 Is AC200V applied across indoor control board connector DP blue CNO68 No 1 No 3 No Replace indoor control board Check for poor contact or broken wire in Indoor control board connector DP blue CN068 1 3 dei wiring Repair PENES Yes 1 9 Conduction in drain float switch Unplug connector and 1 8 Replace drain float check No 1 switch Repair any poor connections broken wires etc in the drain float switch connector and between No 1 and No 3 indoor control board connectors FS red CN034 CN030 1 10 Check draining of drain hose tubes and repair as necessary clean or replace filter for UH 1 9 e The designation is used in the table to indicate indoor boards for DC and AC motor models e For board and Electrical Wiring Diagram see Chapter 6 e Outdoor main board page VI 2 e Outdoor power board page VI 3 e Converter board VI 4 e Indoor control board for DC motor models page VI 5 e Outdoor Unit Electrical Wiring Diagram page VI 6 e See instructions packaged with servic
40. 6P red CN049 and compressor Replace pressure outlet pressure sensor No sensor e For work procedure for replacing outdoor main board see 5 Reference Document 4 5 Si 4ha l hb E EIERE IoF 4 e i B adi adis aiin Bad badi adis Pad eadi adis o 3p i r 4 or EE ET EE aki ELE EECHER EIER S i i t EIERE EIER e ed d d Kl ve dl Ed zl Zo t Ft a sis kdszcls ka 0 1 2 3 4 5 Compressor inlet pressure MPa Compressor outlet pressure MPa e 13 1 Check bypass Operate for several minutes then stop with a difference in Yes Bypass valve is normal valve compressor inlet pressure and outlet pressure and open the valve using outdoor main board menu item No 04 Is the pressure equalized No Bypass valve is defective does not open IV 100 P22 Outdoor Unit Fan Error Error detection method e An Outdoor Unit Fan Trouble is assumed when outdoor fan fan motor rpm and drive has exceeded the following conditions 5 consecutive times in 1 hour e When outdoor fan fan motor revolution is not detected e When an overcurrent is detected in the outdoor fan circuit e When the power board has been incorrectly installed Troubleshooting 1 Is the power board correctly installed Yes 2 1 Power board 1 1 POW GH850M2E Replace it with the ES correct board 2 Any outdoor fan motor locking broken wires poor contact Visa Replace outdoor fan Outdoor f
41. 8 e SEL ee e Sit aay f LHM E FIT S E 5 aa E A Es Z on eich JI TS i om Ei Sz E NRetaoaen LEM SIS CH Sk bg ao S ENZ me GG mg ER SI ak Ap Ge Be DI Ee E oe WEE ROZAET IO REH AOZA 100 E S HEGER JA VAAR S AHO ial 2 Nel z 3 xa SE ae E a ae R Lon Lon rA 5 aaa I gay K ER Kiem e Ch 3 S SE br R a5 a FORZI AN S CZ 2 d D ind BO S THM oO Ei Gi dd LHA c ag E J Be 7 j S me SS e bw Zare S a kom Be i ta TA 734 4 5i s a fee b Sf 8 Ae A a Ge gt 2 EAR oy E H i bona o je p o D aL bial ee ES LHN LHM vm p 1 aay cau p aga 139 00 0 2 5251 BFA 1 Outdoor main board 3 THOSE a DTA gue H WHT t as LG yaa aal an von LH vn Vw 3118 reonl e CH Dee RFN cuoze 034 zeon Q Jzez sy 1n 41B100200 0 AON Cod veg Lon I OUT RAY WHT croo 18 WHT Ou Eu De pu IPT US F F gt G va LK SNOW GRN GLP BLU OLSL PSY REO PS2 Wig oe
42. 88 Ignition time offset J 52 a3 Cooling low pressure offset 89 53 a4 Heating low pressure offset 8A 54 a5 Cooling low pressure offset 2 8B 55 a6 Heating low pressure offset 2 8C 56 Fuel adjustment valve offset 8D 57 Silent 8E 8F 90 91 92 93 5 58 Silent start 94 l 59 Silent end 95 5A 96 5B Anti freezing temperature 97 Indoor unit solenoid valve open close 5C Throttle offset 98 Indoor unit drain pump on off 5D Outdoor unii Solenoid vaye neater 99 Catalyst temperature sensor existence thermostat on initial opening 5E 9A 5F 9B 60 Thermostat off diff 9C 61 Thermostat on diff 9D 62 Cooling heating switch diff 9E 63 GUF thermostat off diff 9F 64 GUF thermostat on diff 65 GUF cooling heating switch diff 66 Outdoor unit solenoid valve heater operation lowest opening 67 68 69 6A 6B 6C 6D 6E 6F Anti freezing timer The default value is the reference value Subject to amendment without prior notice V 30 Data code Data Data code Data AO DO A1 D1 A2 Energy saving mode setting D2 A3 D3 A4 D4 A5 D5 A6 D6 A7 Refrigerant shut off value optional D7 existence A8 W Multi oil collection control setting D8 A9 D9 AA DA AB DB AC DC AD DD AE DE AF DF BO E0 B1 E1 L B2 E2 2 B3 E3 3 B4 E4 B5 E5 B6 E6 B7 E7 B8 Fan output when snowfall sensor input is E8 yes B9 E9 BA EA BB EB C BC EC 7 BD ED BE EE BF Gas demand flow volume rated value EF co FO C1 F1 C2 F2 C3 F3 C4 F4 C5 F5 C6
43. A27 Catalyst Temperature Error for only models with catalyst option Error detection method e When a catalyst temperature exceeding 700 C is detected continuously for 10 seconds during engine operation the engine is stopped and an error flag is set A Catalyst Temp Trouble is assumed when this flag has shut down the engine 5 consecutive times in hour Troubleshooting 1 Yes 1 2 P 1 1 Check the wiring and connectors Everything OK Unit error CTS Mo Repair wiring OK 1 3 1 2 Thermistor operating properly SES NG Renlace thermistor Yes Replace outdoor main 1 3 Inspect ignition timing Everything OK board No Adjust e For work procedure for replacing outdoor main board see 5 Reference Document e For board and Electrical Wiring Diagram see Chapter 6 e Outdoor main board page VI 2 e Outdoor power board page VI 3 e Converter board VI 4 e Indoor control board for DC motor models page VI 5 e Outdoor Unit Electrical Wiring Diagram page VI 6 e 1 2 Thermistor resistor values 100 C 96 0KQ 200 C 13 5KQ 300 C 3 3KQ 400 C LISKO 500 C 514Q 600 C 268Q 650 C 198Q 700 C 1510 750 C 122Q 800 C 98Q e 1 3 See Chapter 5 for timing adjustment IV 27 A28 Generator Error for only High Power Multi Error detection method A generator error may be assumed if an error occurs with the generator or the generator belt e Phase interruptions oc
44. An error is determined when the indoor unit count responding to transmission is less than the indoor unit count set on the outdoor unit Also detected apart from auto addressing e The actual number of indoor units is less than the number of indoor units set on the outdoor unit e Connected indoor unit power is OFF e An indoor unit has a short circuited inspection pin CN062 CN071 or TEST pin CN064 upon power ON e High voltage AC200V etc was applied across indoor outdoor operation wire circuit Troubleshooting 1 Yes Turn power ON Power 1 1 Is the indoor unit power OFF supply No 2 1 2 2 4 Indoor outdoor operation wiring broken or short circuited Yes Repair wiring Indoor See 5 Reference Document No 2 2 outdoor operation 5 9 High voltage AC200V etc applied across indoor outdoor Yes 3 2 wiring operation wire circuit No 3 1 3 Did the number of indoor units change after auto addressing Yes 3 2 Indoor unit 3 1 Or was the indoor unit count setting changed on the outdoor count main board No 4 1 3 2 Perform pre check before auto addressing See 5 Reference Document 4 4 1 8 the inspection pin CNO62 CNO71 or TEST pin CN064 on Yes Eliminate short circuit Indoor the indoor control board short circuited No 4 2 control board 4 2 Ile an option board CN060 or wireless remote controller Yes 4 3 CN041 conn
45. CNO63 Ignore abnormality A17 if it occurs No Replace starter power sours 2 Is either of the two wires from the starter power sours Yes Repair replace wiring Starter 2 1 terminal to the starter short circuit ground faulted or misrouted No Replace starter e For work procedure for replacing outdoor main board see 5 Reference Document e For board and Electrical Wiring Diagram see Chapter 6 e Outdoor main board page VI 2 e Outdoor power board page VI 3 e Converter board VI 4 e Indoor control board for DC motor models page VI 5 e Outdoor Unit Electrical Wiring Diagram page VI 6 Reference Electrical Wiring Diagram C D 1 2 e 1 1 2 1 2P 7 black 120 150 190 240 model IV 15 A16 Starter Lock Error detection method e During cranking a Starter Locked error is assumed when any of the following conditions occur 5 times in 1 hour the starter power primary current meets the following condition no revolution pulse is detected no input from the crank angle sensor no input from the cam angle sensor e When 32A or more is detected for 1 0 second or more Troubleshooting 1 Check starter 1 4 1 Check for starter lock If there is no starter lock includes engine and compressor replace the Starter outdoor main board e For work procedure for replacing outdoor main board see 5 Reference Document 2 Temporarily remove the compressor drive belt and check
46. DOWN S006 key displaying the menu item numbers Select menu item non in the figure below The display EE St figure below will appear LI l D052 UP DOWN SET o sms S006 5007 O O O O 5004 HOME Q 3 Press the SET key S007 Taat right figure will be displayed The LEVEL LED D053 and TEST WARNING LED D052 will light 4 Press the SET key S007 for one second or more The TEST WARNING LED D052 will go out and the test run will be stopped 004 HOME 9 Running condition check 1 Make sure that no abnormal noise or vibration occurs 2 Make sure there is no looseness in the fastening parts for each unit 9 Thermistor characteristic graph O Indoor unit heat exchanger inlet temperature sensor indoor unit heat exchanger outlet temperature sensor outside air temperature sensor compressor inlet temperature sensor outdoor unit heat exchanger inlet temperature sensor hot water outlet temperature sensor C X Q O GC D m 2 o oO Ka Bi eee a a e a m 10 20 30 40 50 60 70 100 110 120 pL TT Tt tT ie ares gies Lee Temperature C Compressor outlet temperature sensor exhaust gas temperature sensor generator temperature sensor 20 18 16 14 12 10 Resistance kQ O N A Q 20 30 40 50 60 70 80 90 100 110 120 130 Tem
47. F6 C7 Outdoor unit sequential startup within the F7 system C8 F8 c9 F9 CA FA CB FB CC FC CD FD CE FE CF FF The default value is the reference value Subject to amendment without prior notice V 31 Indoor Unit Setting No 6 Level 0 lt ala i 5 gt Key operation is used for indoor unit settings operation impossible when connecting the water heat exchanger 1 Indoor unit setting display Level 0 Shows menu selected indoor unit status display FUELE A 2 Outdoor unit setting item select operation Level 1 Pressing the SET S007 key in the indoor unit setting display mode activates the following display Occurs ae upon completion of initial communication Example Example Indoor No unit data code 1 with gas tube valve Operating the UP S005 and DOWN S006 keys in this mode makes it possible to select setting categories Pressing the HOME S004 key or conducting no operations for 10 minutes activates a return to the HOME display 3 Outdoor unit setting operation Level 2 Setting start operation method Press the SET S007 key for one second in the setting data code select mode This activates the forced setting in progress display TEST WARNING LED light After entering the setting start operation mode operating the UP S005 and DOWN S006 keys make it possible to change the setting details of the selected setting cate
48. IV 27 A28 Generator Error for only High Power Multi 2002 0 cccccsesecccteeteeeeeeeerceneeeeeeeeeeaae IV 28 A29 Converter Error for only High Power Mullti cs ccceeeesscceeeeesseeeeeeeeneeeeeeeseeees IV 29 E01 Remote Controller Receive Fallure 2 cc ccccceeceeeeeseeceneeeeeeeeeeeeseceeeneneeeeentaen IV 30 E02 Remote Controller Transmission Failure 002 cccccceseseesnseeeeeeeenessseneneeeeeeenseeees IV 33 E03 Indoor Unit Receive Failure from Remote Controller Central IV 34 E04 Indoor Unit Receive Failure from Outdoor Unit 0 cc ccccceeceeeeeeeseeeeneeneee erences IV 37 E05 Indoor Unit Transmission Failure to Outdoor Un IV 40 E06 Outdoor Unit Receive Failure from Indoor Unit eee ceceeeceeeeeeeeeeeeeeeeneeees IV 41 E07 Outdoor Unit Transmission Failure to Indoor Un IV 44 E08 Duplicated Indoor Unit Address Setting cccccccceseeseseecceeeeeeeeeeseeeneeseneennensces IV 45 E09 Multiple Main Remote Controller Units Get IV 46 E11 Indoor Unit Receive Failure from Signal Output Board C A IV 47 E12 Automatic Address Setting Is in Progress Automatic Address Setting Start is Prohibited IV 48 E13 Indoor Unit Transmission Failure to Remote controller cccccccsseeeeceeeeeeeeseeee IV 49 E15 Automatic Address Alarm Too Few Une IV 50 E16 Automatic Address Alarm Too Many Une IV 52 E18 Group Control Wiring Communi
49. Replace outdoor main ports 5 and 1 to 4 when the power is on No board SCH Replace the bypass e Electric valve coil inspection Yes valve unit 1 4 Are the resistance values for electric valve connectors 5 and 1 to 4 about 40 Q No Peplace the bypass valve coil 2 ME Yes 2 3 Four way 2 1 Is the outdoor unit a 3 WAY MULTI device No 122 valve Inspect OK 3 1 outdoor 2 2 Is the four way valve free from leakage NG Replace the four way solenoid valve valves Are the outdoor solenoid valves discharge valves 1 and 2 OK 3 1 2 3 and suction valves 1 and 2 free from leakage Suction valve 1 closes when current flows through it other we Replace the solenoid solenoid valve remain open valve 3 e Liquid valve inspection OK 4 1 Liquid valve 3 1 Any refrigerant leaks past the liquid valve when the liquid ve Replace the liquid valve inspection valve is completely closed step 0 unit 4 Is the operation mode heating Yes 4 2 Expansion 4 1 Note If you are operating with a 3WAY MULTI try 4 2 and valve 4 3 before shutting down the engine as this might be N 4 3 inspection due to cooling and heating mixed operation S 7 e Outdoor expansion valve inspection OK 5 1 4 2 Check that there are no refrigerant leaks past the outdoor Replace the outdoor expansion valve when the engine is stopped in heating mode NG expansion valve unit e Indoor electric valve inspection Stop the indoor unit during cooling operation multipl
50. See 5 Reference Document for details on the procedure for replacing the water heat exchanger unit s control board IV 52 E18 Group Control Wiring Communication Failure Cannot be detected when the water heat exchanger unit is connected Error detection method When remote controller group control main unit cannot communicate with sub unit An error is determined when the remote controller group control sub unit has not communicated with the main unit for 3 minutes e An indoor unit within group control is not powered ON e Inspection pin CN062 CN071 or TEST pin CN064 is short circuited on an indoor unit within group control e Indoor unit DISP pin CN063 CNO072 is short circuited on a sub indoor unit within group control e Remote controller group wiring is broken e Multiple indoor units within group control are set as main e An indoor unit within group control is set as independent Troubleshooting 1 5 Yes Turn power ON Indoor unit 1 1 _ Is the indoor unit power OFF TE Is the inspection pin CN062 CN071 or TEST pin CN064 or Yes Eliminate short circuit 1 2 DISP pin CN063 CN072 on the indoor control board short circuited No 2 1 2 T 5 Yes Repair wiring Remote 2 1 Remote controller group wiring broken No 22 controller group In the remote controller detailed settings mode check the Yes 2 3 Wiring 2 2
51. Wire break or 3 1 boards of all devices that are connected to the control wires disconnection check Any location with measured resistance values in MQ units infinite No 4 1 3 2 Because the wiring has a break search for the location of the break 4 D i Yes 4 2 Shield wire check 4 1 A shield wire is used as an indoor outdoor control wire N Sa O 5 E Yes 5 1 4 2 Only one end of the shield wire is grounded No A3 4 3 Ground only one end of the shield wire SCH 5 1 Check total wire length and the number of branch connections and connected units Terminal resistor is basically ON SHORT for one unit only but depending on the installation status can be set to ON SHORT for up to 3 units e Device ground check Is earth ground securely obtained e If an error is found in the wiring connections the following check procedure allows you to quickly identify the location of the error When performing the check procedure it is convenient if you have a drawing showing the layout of devices and wiring routes to refer to e In systems that are comprised of multiple wiring systems linked together you can quickly identify the location of the error by removing the link and determining whether each individual system is good or not good A warning in a certain system does not necessarily mean that the cause of the error is in that system Check the indoor outdoor control wires of all systems since th
52. Yes board 4 2 confirmation switch Measure between 3P red No 1 and No 3 Gas type 0 Conduction No 1 3 Gas type 1 5 No conduction Disconnect N P change confirmation switch relay connector Yes 1 4 2P 13 white and measure conduction of the switch 1 3 Measure between 2P white No 1 and No 2 Gas type 0 Conduction No Replace NP change Gas type 1 5 No conduction onm maoM SWEN Correct the wiring between the outdoor main board connector 3P red CN013 and N P 1 4 change confirmation switch Gas type 0 Broken wire or poor connection contact Gas type 1 5 Short circuit or pinched wire e For work procedure for replacing outdoor main board see 5 Reference Document IV 80 P01 Indoor Fan Error Indoor Unit Fan rpm Error Cannot be detected when the water heat exchanger unit is connected Error detection method e Detects when indoor control board connector T20 gray CN076 1 3 are open and assumes an error has occurred The sensor connected to T20 gray CN076 may be an internal thermostat built into the fan motor or a thermal magnet switch depending on the model The internal thermostat turns the contact OFF when the fan motor coil temperature rises and automatically recovers as the coil temperature decreases turning the contact ON The thermal magnet switch turns the contact OFF when the fan motor operation current becomes excessive and turns the contact ON when normal or when recovered The wiring
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54. again replace the oil pressure switch e For work procedure for replacing outdoor main board see 5 Reference Document e For board and Electrical Wiring Diagram see Chapter 6 e Outdoor main board page VI 2 e Outdoor power board page VI 3 e Converter board VI 4 e Indoor control board for DC motor models page VI 5 e Outdoor Unit Electrical Wiring Diagram page VI 6 e 1 2 With oil pressure DCOV No oil pressure DC12V IV 14 A15 Starter Power Source Output Short Circuit Error detection method When the starter power primary current meets the following conditions an error is determined upon 5 consecutive occurrences in hour e Not during cranking When 40A or more is detected for 0 1 second or more e Not during cranking When 26A or more is detected for 0 2 second or more e Not during cranking When 3 8A or more is detected for 5 0 second or more Note 1 The starter power source magnet switch 52S operation is as follows e 52S turns ON upon operation signal input If no abnormalities occur thereafter A15 A16 A17 this stays ON and turns OFF upon stop signal input e Turns OFF when error occurs Troubleshooting 1 4 4 RReoccurs even when disconnecting the two wires from the Yes 1 2 Starter starter power sours terminals No 2 1 tie Y Repl trol board es Replace control boar source DC 4 2 Reoccurs even after disconnecting control board connector E current 3P yellow
55. and displaying equipment malfunctions or suspected malfunctions in the same way as normal error detection Oil Change Notification Conditions and Display Method The fact that the time for changing the engine oil has arrived or is close is displayed on the remote controller and on the main circuit board on the outdoor unit Notification Notification Conditions Display method Remarks Time to Change Oil 1 Remote controller Outdoor Unit Circuit Board Oil Inspection 9 800 or more hours Oil Change blinks G 2 G a dJi Operations continued A02 Alarm a 10 000 to 10 300 hours A02 blinks Goo A o 2 Operations restarted when e Alarm triggered every GG Blo di error is reset 50 hours Displayed Error reset with the remote b 10 300 hours alternately controller and outdoor unit e Alarm triggered every circuit board 4 hours Only 0 Glo fh is displayed after reset 1 Oil change time Engine operation times since the previous oil change and time reset See below for details on how to reset the oil change time Method for resetting oil change hours timer 1 Select Menu No 2 Oil change hours display The oil change hours are displayed as shown below o CUI ELI won e change hours 10100 hours Displays o for oil change hours 2 By holding down the set key while displaying the oil change hours the display changes to the following Also if an opera
56. check 5 1 Is the coolant electric three way valve operating normally board and keep an eye on the situation No Replace the three way coolant valve e For work procedure for replacing outdoor main board see 5 Reference Document e For board and Electrical Wiring Diagram see Chapter 6 e Outdoor main board page VI 2 e Outdoor power board page VI 3 e Converter board VI 4 e Indoor control board for DC motor models page VI 5 e Outdoor Unit Electrical Wiring Diagram page VI 6 TV 21 2 1 Visually inspect all portions of the coolant system while stopped Are there any coolant leaks or evidence of coolant leaks Also are there any water leaks from any of the following four locations when the water circuit is operated and the pump activated Water circuit operations Performed with the Diuini P enforced water circuit setting on the No 4 Test Run Forced Settings menu 1 Hoses and connections 2 Flange connections 3 Threaded connections 4 Tubing welds 2 2 Collect oil from oil pan and check for emulsification Emulsification Mixed 3 1 Check for any fluctuations in coolant pump rotation speed and any evidence of air being mixed during air extraction when the air purge operations are performed by selecting 5 A r Im the Automatic Air Purging Mode on the No 4 Test Run Forced Settings menu 4 1 Coolant Pump Inspection If the coil res
57. condenser No evaporator Waiting for the 3WAY solenoid valve in the indoor and outdoor units 3WAY model only De H fto complete switching so the system can secure the condenser Iv 1 4 Troubleshooting A01 Engine Oil Pressure Error Error detection method e When the engine oil pressure switch is OFF continuously for 4 seconds during engine operations complete combustion the engine will be shut down momentarily and an error flag set The reason for the engine being shut down is due to the error flag being triggered five consecutive times in one hour When the engine oil pressure switch is not detected within ten seconds of the engine being started complete combustion e When oil pressure engine earth common K21 or K25 short circuit are detected at the engine oil pressure switch contact with oil pressure detected Troubleshooting 1 WW o Yes 2 1 Oil level 1 1 Is there oil in the storage side of the oil tank No 12 F Yes Repair 1 2 Any oil leaks or dirty oil No 1 3 p d Yes Add oil 1 3 Is the tank side of the oil tank empty No 1 4 Yes Check for pinched 1 4 Does the oil fill pump operate properly or clogged hose No 1 5 SC E Yes Repair wiring 1 5 Any oil fill pump wiring broken or disconnected No Replace pump 2 After engine operation complete combustion does the voltage Yes 3 1 Oil 2 1 betwee
58. confirming setting Setting range 00 to 03 0 Inspection and error our DD 1 None alr Di 2 Error only o dr ole 3 Inspection only s lt ca it Single phase setting Level 2 Rejection conditions Setting start operation method Setting change operation method D rm ut wt Example D D DI L we t D 4 Not accepted during indoor operation Press the SET S007 key for one second Setting confirm operation method Setting cancel operation method Setting range After entering the setting start operation mode operating the UP S005 and DOWN S006 keys makes it possible to change the setting values TEST WARNING LED light When pressing the UP S005 key When pressing the DOWN S006 key After entering the setting start operation or setting change operation completed press the SET S007 key for one second TEST WARNING LED off Press the HOME S004 key for one second before confirming setting 00 to 01 Single phase at D C C3 C D V 40 14 Tube connection confirmation Level 2 lt Cannot be set if not W MULTI gt Rejection conditions Setting start operation method Setting change operation method Indoor unit operation in progress cooling automatic addressing in progress Push the SET S005 key fo
59. connected to the auxiliary hot cold water pump electrical Request equipment exchanger relay Notes 1 3 No wiring unit s electrical Yes 1 3 box 1 2 Is a hot cold water pump interlock connected Notes 2 3 N Request equipment wiring i a Yes Repair 1 3 Are any signal lines severed faulty or short circuited N i O 4 4 8 the power to the auxiliary equipments control board Yes Switch on the power switched off No 1 5 Request equipment Is there any chattering in auxiliary equipment s hot cold water Yes repair 1 5 pump electrical relay or in the hot cold water flow switch Note 4 No Replace the water heat exchanger unit board Note 1 Hot cold water pump operation command TB3 between No 1 and No 2 No voltage a contact output Note 2 Hot cold water pump interlock TB4 between No 1 and No 2 No voltage a contact input Note 3 Operations are possible when there is a short circuit between No 3 and No 4 on the TB3 terminal board but this may lead to the coolant freezing or other problems owing to a reduced flow volume so an interlock must be connected without fail Note 4 Switch on the flow switch to confirm that the correct flow volume is being maintained in series with the signals operated by the coolant pump Check the settings for the flow switch e See 5 Reference Document for details on the procedure for replacing the water heat exchanger unit s control board I
60. each model Initial Setting No 10 Level 0 lt i n a 5 Key operation is used to perform the initial setting Initial setting details are as follows 1 Initial setting display Level 0 Displays selection of the initial setting at the menu Fl Jelalt 2 Initial setting item select operation Level 1 Pressing the SET 600 key in the initial setting display mode activates the following display Example o u k 1 Example With system address 1 Operating the UP S005 and DOWN S006 keys in this mode makes it possible to select the settings for system address outdoor unit address number of outdoor unit connected number of indoor unit connected format gas type old refrigerant indoor unit compliance engine heating automatic address and cooling automatic address Display Function aju E r L System address setting LI H Outdoor unit address setting W Multi only D Number of outdoor units connected setting W Multi only D Number of indoor units connected setting ad Outdoor unit model displays Gas type setting ml n Refrigerant setting must not be amended 1 Generator setting tDown ra Model setting 1 must not be amended 1 Up Model setting 2 must not be amended 1 Destination setting 1 must not be amended 1 Hot water setting ES Oil change tim
61. fan rpm error P01 ole ele Indoor protection Indoor unit float switch operation P10 z ge ge MES devices H Hl Indoor DC fan error P12 Alternate flashing High compressor discharge temperature P03 v erg 3 Refrigerant high pressure switch P04 3 operation S Power source error POS D F F 7 D Refrigerant circuit error P13 2 for only W MULTI and 3WAY MULTI O F k Outdoor protection De sensor operation Pi Operating Timer Wait Outdoor unit NW devices Complete refrigerant gas depletion P15 Ly Ly g Bypass valve error P18 A pes CO 5 4 way valve lock error P19 a not detected 3WAY MULTI poled Refrigerant high pressure error P20 Outdoor fan error P22 Clutch connection error P26 Group control s sub unit error System controller P30 System controller Group control error alarm P31 Indoor unit Oil change time level alarm Outdoor display oiL SERGE Automatic backup operation 2 check Outdoor unit Backup operating display without power generation when the GE converter is abnomal When the water heat exchanger unit is connected in the table above please replace indoor unit with water heat exchanger unit for the alarm Note Some items are not indicated depending in model 1 If the indoor nonvolatile memory EEPROM is faulty when the power supply is turned on Alarm code F29 is not indicated but the power source LED on the indoor board starts to flicker 2 In this case operation of the system is possible but on
62. indoor unit thermostat status display Example No 1 24 units connected Note 1 dot at lower right Lit Normal status unit Flashing else cycle flashing indicates thermostat off unit numbers e 0 5 sec cycle flashing indicates forced thermostat off status unit numbers e High speed flashing indicates selected unit to perform setting Setting unit Forced thermostat off setting method Press the SET S007 key for one second when forced thermostat off is not set TEST WARNING LED light Forced thermostat off release method Press the SET S007 key for one second when forced thermostat off is set TEST WARNING LED off Display examples No 1 to 32 units connected Note 1 dot at lower right 1 to 12 units from upper left to upper right of vertical line 13 to 24 units from lower left to lower right of vertical line 25 to 30 units from top left to top right of horizontal line 31 units 32 units from bottom left horizontal line Operate the UP S005 and DOWN S006 keys If the number exceeds 32 units automatically No 33 to 48 units are displayed als di wf 4i WE 43 R I GE A HI LI H 33 to 44 units from upper left to upper right of vertical line 45 to 48 units from lower left to lower right of vertical line No 33 to 48 units connected Note 2 dots at lower right Note The example above displays up to 48 units but the number of indoor units that can be connected is restricted separately by
63. is that each time there is a small difference 4 P lt 0 1 MPa between the high and low pressure 4 P high pressure low pressure 90 seconds after stopping the engine stops a suspected error counter increments and the data is recorded as pre trip warning history data After the counter reaches 5 a warning is output on the next complete combustion startup Understanding the warning history The latest P18 data in the warning history is issued immediately after a complete combustion startup It is not the data used for detecting the error If a pre trip error was detected when the suspected error counter reaches 5 that data is the next more recent P18 data Troubleshooting 1 e Bypass valve inspection OK 1 2 Bypass 4 1 During operation use the No 4 test mode v_close close valve valve to close the bypass valve step 0 Check whether NG Replace the bypass inspection refrigerant is not leaking on entering the bypass valve unit e Bypass valve inspection After completing the above inspections stop the engine and OK 2 1 1 2 use No 4 test mode v_open open valve to open the bypass to check that the bypass valve operates normally despite the ve 4 3 fluctuations in tube temperature around the bypass valve e Outdoor main board inspection Yes 1 4 1 3 Is there approximately 12 V of pressure at bypass valve output
64. method and protective devices differ among indoor units For details see the electric diagram diagrams for each indoor unit Basic circuit T20 gray Relay connector Fan motor winding coil protection O thermostat Indoor control board Models not listed below have one fan motor with an internal thermostat contact connected between No 1 and No 3 T20 gray CN076 Models with two fan motors with the internal thermostat contacts connected in line between No 1 and No 3 of T20 gray CN076 If a fan stop signal comes from the indoor unit or data does not come from the indoor unit for three minutes communication error even though the outdoor unit forces the indoor fan to stop a P01 warning will result Troubleshooting 1 4 1 Is there AC 200V between indoor control board connector IN Yes 1 4 Fan motor black CNO067 No 3 and connector T20 gray CNO76 No 3 No 1 2 Any poor contact or broken wires in wiring between No 1 and_ Yes Repair ue No 3 of connector T20 gray No 1 3 The fan motor winding coil protection thermostat has activated Check for dirty filter fan motor t3 lock foreign matter caught in the fan etc For a three phase motor check for missing phase Replace indoor control 4 4 Operate again to check activation Immediate error upon Yes board operation No 1 3 Yes Repair 1 5 Poor connection or broken wires in communication lines N Replace indoor contro
65. mode activates the following display cycle which i is repeated at l second intervals 4 Ea C3 E c1 pax D Dun pl ru CO LU UL ca Example Example Example Example Example forced engine rpm 1400min Engine rpm 1400min Compressor inlet pressure 0 56MPa Compressor outlet pressure 0 56MPa Compressor outlet temperature 85 0 C 3 Forced engine rpm setting operation Level 2 Start operation method Change operation method End operation method 4 Other Setting range Clutch Rotation restriction Press the SET S007 key for one second when forced engine rpm has not been set This will fix the set engine rpm at the forced engine rpm The forced setting in progress display appears during this time TEST WARNING LED light Operating the UP S005 and DOWN S006 keys makes it possible to change the setting values Press the SET S007 key for one second when the forced engine rpm is set This cancels the forced setting in progress display returning to forced setting select operation TEST WARNING LED off From the lowest to the highest rpm in that machine s control status measured in 100 rpm units Moves to clutch engaged rpm during clutch work conducting clutch engaged operation To protect the compressor if the compressor inlet pressure is below 0 05MPa setting rotation s upper limit
66. on the outdoor unit s main board to STOP Yes 1 2 Circuit to completely halt operations of the outdoor unit Is 180V DC being board Gas 1 1 applied between the outdoor unit s power board connector 7P white Replace the fuel solenoid CN041 No 1 to No 3 and between No 5 to No 7 when the NO gas solenoid valve unit is halted valve Replace the 4 2 8 the same problem as explained in 1 1 still occurring after the Yes outdoor unit s outdoor unit s power board has been replaced main board No End e For work procedure for replacing outdoor main board see 5 Reference Document e For board and Electrical Wiring Diagram see Chapter 6 e Outdoor main board page VI 2 e Outdoor power board page VI 3 e Converter board VI 4 Indoor control board for DC motor models page VI 5 e Outdoor Unit Electrical Wiring Diagram page VI 6 Iv 11 A08 Engine Stall Error detection method During engine operation complete combustion when engine revolution speed lt 100min continuously for 3 seconds the engine is stopped momentarily and an error flag is set An Engine Stall condition is assumed when the error flag has stopped the engine 5 consecutive times in 1 hour Troubleshooting 1 OK 2 1 Fuel 1 1 Has the fuel gas pressure dropped Is the fuel empty NG Restore 2 F OK 2 3 E
67. outdoor unit Check wiring connections on indoor outdoor operation wiring IV 55 E26 Inconsistencies in Number of Outdoor Units for only W MULTI Error detection method A Mismatch of Outdoor Unit Count is assumed when the number of outdoor units in the same refrigerant system No 10 first on does not match made setting in a W MULTI OG system A unit with an outdoor unit address No 10 First sub of something other than 0 in an outdoor main board is identified as a W MULTI unit Troubleshooting 1 ge Yes 1 2 Check board 1 1 Is the outdoor unit a W MULTI unit No 11 3 setting Have the system address outdoor unit address and number of connected outdoor units for the same refrigerant system Yes 2 1 4 2 been properly entered e System address No 10 First out e Outdoor unit address No 10 First sub No Enter the data correctly e Number of connected outdoor units No 10 First on Is the outdoor unit address set to 0 Yes 3 3 1 3 For systems other than W MULTI be sure to set 0 A system set to something other than 0 is recognized as W he No Set to 0 MULTI 2 Is the wiring indoor outdoor operation wiring between Yes 3 1 Check 2 1 W MULTI outdoor units in the same refrigerant system wiring connected No Repair wiring 3 3 1 Are all W MULTI outdoor units in the same refrigerant system Yes 3 2 C
68. power before connecting or disconnecting wires Be careful not to touch any live parts energized components with a hand or tool while performing voltage measurement For DC voltage measurement the polarity is indicated by or after the terminal name symbol to prevent confusion Connect the red lead of the tester to the side and the black lead to side 2 About the Error Detection Procedure Some abnormal occurrences are determined as abnormalities the first time they are detected and some are not determined to be abnormalities until they are detected multiple times In the latter case the engine is not forced to shut down the first time an abnormal occurrence happens Instead data on the abnormal occurrence is stored in nonvolatile memory the engine is force stopped for a period of 3 minutes and then the engine enters the restart sequence In the error detection procedures described on the subsequent pages abnormal occurrences that are determined as abnormalities after being detected multiple times e g 5 times are taken to mean abnormal occurrences that are continually detected multiple times e g 5 times within 1 hour of engine operation Regardless of continual occurrence and engine operation time the cumulative number of occurrences e g 5 times may force the engine to shut down 3 Engine Start Standby e When the engine is in standby mode waiting for the startup conditions to be met the conditions that have not yet
69. remote controller wire TB5 4 TB5 5 and outdoor Yes Repair the wiring unit wires TB1 1 2 connected to the wrong places No 5 1 5 Ves Set up noise Noise 5 1 Is a source of noise located nearby countermeasures No 6 1 IV 31 6 Water heat exchanger unit s control board and surrounding area Request improvements Yes to the power facility manager 6 1 Is AC200V 10 being applied between TB1 R and S Proceed to 6 2 after No checking the wires and terminals are normal around TB1 Replace the varister Yes 6 2 Is the varister VA1 grounded or severely deteriorated VA1 No 6 3 Proceed to 6 4 after 5 Yes checking the wires 6 3 Has the power switch SW1 been switched on around SW1 No Set SW1 to ON Are suitable DC voltages being applied to the circuits on the board Yes 6 8 6 4 Suitable DC voltage approximately 5V between TP1 and 2 approximately 7V between TP3 and 4 and No 6 5 approximately 5V between TP5 and 6 p SE Replace the varister 6 5 Is the varister VA2 short circuited between the phases or Yes VA2 severely deteriorated No 6 6 Yes 6 7 Is electrical voltage being output to the secondary side of Check that the wiring 6 6 thefus s F1 F2 No 2nd terminals around the fuses are normal and replace the fuses Yes 6 8 ez S electrical voltage being output to the secondary side of Check that the wiring
70. setting ul fol PlE n Forced valve opening setting Pluim P Forced water circuit setting UCI lioibit Forced bypass valve closing 5 Alor Coolant air purging mode e Ei SIPURA r Forced engine distributor mode E IEIEIEIg Forced engine feedback EIE L o S E Forced engine adjustment valve closing olultidiEIt Forced defrosting operation setting not possible with W Multi or 3WAY diubhl PIS Pressure sensor ignored DR LS o FF Forced gas solenoid valve closing bie Join Forced cranking mode 3 Forced cooling test run setting Level 2 Display Coiot Rejection conditions Heating test run in progress valve open all stop operation in progress automatic addressing in progress indoor unit operation in progress Operating method Press the SET S007 key for one second while forced cooling test run is not in progress TEST WARNING LED light Operation details Cooling test run is activated Forced setting in progress display TEST WARNING LED light is shown during this time Releasing method Press the SET S007 key for one second during forced cooling test run The forced setting used in forced cooling test run will be canceled at this time TEST WARNING LED off 4 Forced heating test run setting Level 2 Display S HERE Rejection conditions Cooling test run underway valve open all stop operation in progress automatic addressing in progress indoor unit operation in progress Operating method Press
71. the error will be triggered after only one detected when operating after the Automatic Air Purge Mode S Air or when the engine is first started after an A21 error has been reset Troubleshooting 1 Yes 3 1 Coolant level 1 1 Is the prescribed amount of coolant in the reserve tank check No 2 1 2 2 4 Are there any external signs of coolant leaks Check Yes Repair Coolant leakage z visually No 2 2 check Yes Replace the engine 2 2 Can any coolant be confirmed in the oil pan head or packing No 2 3 Remove the drain hose from the exhaust gas heat Yes Replace the exhaust gas 2 3 exchanger and operate the pump Is any coolant emitted heat exchanger from the outlet No 3 1 3 i be Yes 3 2 Air mix check 3 1 Can any air be confirmed in the coolant circuit No 4 1 3 2 Does air continue to be emitted no matter how many times Yes 3 3 the air purging process is performed No End after air purge Check for leaks on the f Yes plate heat exchanger 3 3 Does air continue to be emitted even after the engine has and repair if necessary been shut down Replace the engine No 8 head or packing 4 Yes Replace the coolant Coolant pump 4 1 Are there any severed wires eg contacts or short pump check circuits on the coolant pump s lock No Te 5 If the problem reoccurs Coolant electric replace the outdoor unit three way valve Yes s power board or main
72. then perform settings again to return the system to its normal state Check to make sure all shutoff valves of refrigerant gas tube refrigerant liquid tube and balance tube of the outdoor unit are opened Check to make sure the STOP switch S001 on the outdoor main board is set to NORM If the power of the outdoor unit has been turned off turn on the circuit breaker If Test run No 4 Test Cool Heat is set cancel it When adjusting to No 4 Test Cool or Heat if TEST WARNING LED D052 lights this means Test run is being set In this state press the SET S007 key for one second or more The setting will be canceled TEST WARNING LED D052 goes off 3 Malfunctions and Displays 1 Malfunctions without any display O The circuit breaker trips when power is turned on e Short circuit or ground fault of the crankcase heater current leakage in electrical parts Circuit breaker trips when operated e Current leakage or short circuit in fan or coolant pump current leakage or short circuit in electrical parts Poor cooling 1 Problem in refrigeration circuit e Clog in refrigeration circuit faulty 4 way valve faulty electric valve in indoor outdoor unit compression failure or shortage of refrigerant e Shutoff valve not completely open 2 Small fan capacity e Clogged air filter foreign matter in air inlet outlet 3 Other e Insufficient refrigerant tubing insulation Poor heating 1 P
73. to heater side No 1 2 way valve 4 2 During heater operation is the control board VRR connector Yes 2 2 CN033 voltage about ACOV No 1 3 After stopped turn OFF outdoor unit Disconnect control Yes 2 3 1 3 board VRR connector CN033 and measure wiring resistance Normal value about 1kQ Short circuited or N 2 4 broken wire AE 2 21 Check wiring and thermistor for indoor units with no temperature increase Any broken wires Actions or short circuits 2 2 Replace power board 2 3 Replace four way valve coil and wiring 2 4 Replace 4 way valve e For board and Electrical Wiring Diagram see Chapter 6 e Outdoor main board page VI 2 e Outdoor power board page VI 3 e Converter board VI 4 e Indoor control board for DC motor models page VI 5 e Outdoor Unit Electrical Wiring Diagram page VI 6 Troubleshooting W MULTI only 1 Check all W MULTI outdoor units Yes 2 1 Pressure 1 1 Is the actual difference between compressor inlet pressure sensor displayed on the outdoor main board and output pressure N Replace pressure inspection gauge data etc 0 1 MPa or less sensor 2 Use a collective stop setting to temporarily stop the outdoor Check unit and perform four way valve adjustment control according outdoor unit to one of the procedures described below operation After resetting the power supply on all W MULTI outdoor units 2 1 use the remote controller or the outdoor main board to start 2 2 desired mode Us
74. to the outdoor unit Are there any poor connections contacts crimping or severed Yes Repair Wiring 4 3 wires between the outdoor unit s power board connector 3P white CN024 and the outdoor unit s main board connector N 4 4 3P white CN083 oo Yes 4 5 4 4 ls the outdoor unit a high power model No 4 9 Yes 4 8 4 5 Is LED D044 on the converter assembly blinking N Fe Oo Are there any poor connections contacts crimping or severed Yes Repair Wiring 4 6 wires between converter ASSY3P green CN011 and the outdoor unit s power board 3P green CN012 No 4 7 Are there any poor connections contacts crimping or Yes Repair Wiring 4 7 severed wires between converter ASSY2P red CN016 and the outdoor unit s main board connector 2P red CNO20 No 4 6 4 g 1S DC250V or more being applied between the outdoor unit s Yes 4 9 power board 3P green CN012 1 and 3 No 4 10 Replace the outdoor unit s power board and keep an eye on the situation SS Replace the outdoor unit s main board if E31 occurs again 4 10 Replace the converter assembly and keep an eye on the situation e For board and Electrical Wiring Diagram see Chapter 6 e Outdoor main board page VI 2 e Outdoor power board page VI 3 e Converter board VI 4 e Indoor control board for DC motor models page VI 5 e Outdoor Unit Electrical Wiring Diagram page VI 6 IV 57 F01 02 03 10 11 In
75. unit UE 2 About backup operation during maintenance work e What is backup operation In the W MULTI series multiple outdoor units are connected to the same refrigerant tube as shown in Figure 1 Therefore even during maintenance work of an outdoor unit the other outdoor unit not required in maintenance work can be used to keep the indoor operating conditions This is called a backup operation e Backup operation procedure To perform backup operation the outdoor unit for maintenance work hereafter referred to as target outdoor unit must be cut off from the system using the following procedure Review content of the maintenance work and then select the most suitable method Also after the maintenance work is finished always refer to System recovery procedure and then return the system to its normal state Backup operation procedure To turn off power of target outdoor unit and then perform maintenance work basic operation during inspection of outdoor unit lt lt Important gt gt This is the basic operation performed during inspection work If this operation is not performed and the power of the outdoor unit is turned off this will cause system fault and prevent backup operation to be carried out and serious malfunction will occur If this happens see System recovery procedure to recover the system and then once again use the following procedure to perform setup Automatic backup operation will kick in l
76. using a tL l tester Replace coil if OQ or 46Q is normal 2 4 Phase B Phase COM B t IV 98 e 9 1 Checking the Water Heat Exchanger Unit s Motor Operated Valve Standard for determining that the motor operated valve is open The temperature of the water heat exchanger s coolant outlet must be 40 C or higher when 30 minutes have elapsed after reaching complete combustion in the heating mode Check this by the No 0 operation data display e 9 2 Switch on the power between No 5 and No 1 4 and between No 10 and No 6 9 of the water heat exchanger unit s control board connectors 10P 1 white and 10P 2 black Then if a pulse voltage exists everything is normal Approximately DC 4 V when measured with a tester e 9 3 Disconnect the water heat exchanger unit s solenoid valve connector 6P 1 white and measure the motor operated valve coil s resistance between No 5 and No 1 4 with a tester If the resistance is 0 Q or replace the coil Approximately 46 Q is normal e 11 1 Check outdoor electric valve and backup stop valve 1 Orange 2 Red 3 Yellow 4 Black 5 Gray Phase A 1 Orange O Phase AT 3 Yellow com 5 Gray Red Black White SC Phase B Phase B COM Check by using the following procedure to display the P20 stop data nonvolatile memory on the 7 segment LED a In Nol Error data display lightly press the set key once
77. with heater thermostat on LL B Indoor unit setting B 0 to 8 Cooling indoor fan odor compensation C Indoor unit setting C 0 1 Normal Air speed select when dry thermostat off LL stop D Indoor unit setting D 0 to 120 Heating thermostat on upper limit 0 4 480step E Indoor unit setting E 0 to 120 Heating thermostat on lower limit 0 4 480step F Indoor unit setting F 0 to 120 Initial heating discharge 0 4 480step e G Indoor unit setting G 0 to 120 Initial cooling thermostat on 0 4 480step 7 H Indoor unit setting H 0 to 120 Heating high pressure avoidance 0 4 480step l Indoor unit setting 0 to 120 Cooling thermostat on lower limit 0 4 480step J Indoor unit setting J 0 to 120 Heating thermostat off 0 4 480step K Indoor unit setting K 0 to 120 Cooling thermostat off oil recovery 0 4 480step L Indoor unit setting L 35 to 92 Cooling discharge temperature 0 depending on model type 35 to 92 C N Indoor unit setting N 35 to 92 Heating discharge temperature 0 depending on model type 35 to 92 C V 32 Forced engine rpm setting No 08 Level 0 lt n Hz D pax Forced setting of setting engine rpm is possible 1 Forced engine rpm setting display Level 0 Displays selection of the forced engine rpm setting at the menu Et r D o 2 forced engine rpm setting Level 1 Pressing the SET S007 key in the forced engine rpm setting display
78. z9 ES een Ca ka O24 zae9 14 13 No Name rosin no Name E Terminal resistor ON OFF switch S010 A 3 17 CNO75 D 1 STOP SW S001 A 3 18 EEPROM B 3 Indoor outdoor communications monitor D043 B 2 19 CNO37 WHITE C 3 4 Gas solenoid valve forced off switch S002 B 3 20 CN049 RED ee Ge C 3 5 SET key S007 C 1 21 CN029 BLUE C 3 6 DOWN key S006 C 1 22 CNO14 BLUE C 3 7 UP key S005 D 1 23 CNO16 BLACk C 2 8 LEVEL LED D053 D 1 24 CNO62 GREEN Hot water outlet temperatur A 1 9 TEST WARNING LED D052 D 1 25 CNO60 BLUE Clutch coil temperature A 1 10 HOME key S004 D 1 26 CNO58 WHITE Coolant temperature A 1 11 CNO15 WHITE C 2 27 CNO59 BLACk Outdoor air temperature A 1 12 CNO63 YELLOW D 3 28 Ggs Heat exchanger inlet A 1 13 CN012 RED D 3 29 CN064 YELLOW Clutch 2 coil temperature A 1 14 CN011 BLACK D 2 30 CN053 BLACK Compressor inlet temperature A 1 15 CN010 WHITE D 2 31 CN054 RED Compressor outlet temperature A 1 16 CNO06 BLACk D 1 2 Outdoor power board rf CJ ro Ld l J CR e ze rT Td fi egg K a S Leg m i F GE WEEN
79. 13 CN334 red B 1 14 CN333 red A 1 Model Used For High Power P Model Used For 30HP 300 5 Outdoor Unit Electrical Wiring Diagram 8FA 2 5251 139 00 0
80. 5 Reference Document When the address settings for the indoor and outdoor unit and the type settings for the indoor unit have been amended make sure that the power supply to the outdoor unit is reset without fail The new configuration will be recognized during initial communications IV 75 L15 Defective Pairing of Indoor Units Error detection method 1 In the case of double duct models Troubleshooting 1 In the case of double duct models Detects defective combinations type capacity group and unit count settings in double duct units No Problem Recovery 1 Another indoor unit is connected to the system to which a double duct unit is connected Connect only one indoor unit to the system Another indoor unit is group connected to the remote Disconnect the other indoor unit from the group and 2 controller group in the double duct unit reset the group settings item code 14 in the remote controller s advanced settings A defective setting exists in the remote control group Set one of the two boards to 1 main and the other 3 settings between the two built in indoor units control to 2 sub in the group settings item code 14 in the boards remote controller s advanced settings The type or capacity settings differ between the two anl ing type and capacity parameters to the aes 3 Ee Sec setting for both indoor unit s control boards wi
81. C 22 Clutch coil temperature C ele 5100 50 0 C 23 Catalyst temperature C alalajia 250 0 C 24 Hot water outlet temperature optional C d H oid 70 0 C 25 26 e temperature C ai erun 154 0 C 27 28 29 30 31 Clutch coil 2 temperature C ALJ SEE 50 0 C 32 33 34 Exhaust gas temperature C ls Elsa 65 0 C 35 36 37 38 Outdoor unit fan 1 3E UO 100 39 Outdoor unit fan 2 34 UO I 100 40 41 Outdoor unit fan revolutions 1 min vU ESE 1650 min 42 Outdoor unit fan revolutions 2 min jel BD 650 min 43 44 Coolant pump setting min vui2ll0ol0 13 700 min Ap Coolant pump revolutions min SENEE 13 700 min Ap Throttle Step 4 6 ID 100 steps 47 Fuel gas regulating valve Step UU 212 330 steps 48 Liquid valve Step VB gg 220 steps 49 Bypass valve Step 4 4 Uo 100 steps 50 Outdoor unit solenoid valve 1 Step SI 4 8 amp 480 steps 51 Outdoor unit solenoid valve 2 Step DU HDD 480 steps 52 Three way coolant valve Step D 9 50 11 950 steps 53 Exhaust heat collection valve Step Sia 200 200 steps 54 Three way hot water extraction valve sm 510 50 steps optional V 17 Data Display cod Data name Unit examples Remarks 55 Revolution speed var
82. Compressor outlet temperature Example 85 0 C 4 Press the SET key S007 for one second or more The TEST WARNING LED D052 will go out and the forced rotational speed setting mode will be canceled 5 Press the HOME key S004 for one second or more rt Menu item number naa Hi right figure will be displayed f a O 6 Press the UP S005 or DOWN S006 key and select menu item number na The display k E figure below will appear UP 005 DOWN 008 SET 5007 O O 5004 HOME Q O 5004 HOME Q 7 Press the SET key S007 Zani right figure will be displayed The LEVEL LED D053 and TEST WARNING LED D052 will light 8 Press the UP S005 or DOWN S006 key to display E 5 FA right figure Press the SET key S007 for one second or more The TEST WARNING LED D052 will go out and distributor mode will be cancelled O Stop test run 1 Press the HOME key S004 for one second or more rt rt Menu item number nat right figure will em be displayed l jl I ji I jl l D052 UP DOWN SET s005 S006 5007 O O oO 2 Press the UP S005 or
83. Measure compression See A06 5 1 Ge F rege OK 6 3 6 2 Check 6 1 again after washing the valve and adjusting the valve Reol clearance Any problem with compression NG iaa anes 6 3 Are spark emissions normal E p issio o No 64 ere OK 6 5 6 4 Inspect ignition plug see A06 2 3 NG Replace 6 5 Replace the ignition coil cam angle sensor and crank angle sensor one by one to identify the defective part 6 6 tth A06 3 1 A nspect the zero governor see NG Restore ee OK 7 1 6 7 Is the ignition timing normal see A06 5 4 x NG Adjust T Does the fuel regulating valve step motor coil resistance measure OK 17 2 Fuel gas 7 1 about 1200 Disconnect relay connector 6P 6 and measure regulating between No 1 red and No 2 No 3 and between No 4 orange NG Replace mixer valve and No 5 No 6 p Is 4V DC being applied between the outdoor main board connector Yes Replace mixer 7 2 6P red CNO65 No 5 and No 1 No 2 as well as between No 3 No 4 when the power is on during positioning No 8 1 8 Does the throttle step motor coil resistance measure about 1200 Ves 8 2 Mixer 8 1 Disconnect relay connector 6P 2 and measure between No 1 red and No 2 No 3 and between No 4 orange and No 5 No 6 No Replace mixer Is 4V DC being applied between the outdoor main board connector Yes Replace mixer 8 2 6P black CNO66 No 1 and No 2 No 3 as well as between Replace the No 4 and No 5 No
84. P black CN011 disconnected S Check for ground faults or short circuits between the outdoor unit s g Replace the 2 3 main board connector 6P white CN010 and 6P black CN011 and ignition coil each ignition coil NG Repair Wiring Is AC11V or more applied between the outdoor unit s main board Yes 2 5 2 4 connector 2P white CNO22 No 1 and No 2 when the magnet switch is turned on No 3 1 Yes Repair Wiring Are there any defective wiring connections contacts or severed wires 2 5 between the outdoor unit s power board connector 2P black CN025 Replace the and the outdoor unit s main board connector 2P black CN006 No outdoor unit s power board 3 Is approximately AC11V applied between the starter power source s Yes 3 2 Ignition 3 1 relay connector 2P 7 black No 1 and No 2 when the magnet switch starter is turned on No 3 3 power Are there any defective wiring connections contacts or severed wires between the outdoor 3 2 unit s power board connector 2P white CN022 and the starter power source s relay connector 2P 7 black Repair wiring Is AC200V applied between the starter power source s relay Yes Replace the 3 3 connector 2P 6 white No 1 and No 2 when the magnet switch is starter power turned on No 3 4 IV 7 3 4 Ile approximately AC200V applied between the magnet switch s No 2 Yes
85. Panasonic TECHNICAL amp SERVICE MANUAL Gas Heat Pump Air Conditioner TROUBLESHOOTING Ee Applicable Models 2WAY Multi 2WAY W Multi 3WAY Multi Reference No SM7110040 00 OO Applicable models OO lt 2WAY MULTI W MULTI gt U 16GE2E5 U 16GEP2E5 U 20GE2E5 U 20GEP2E5 U 25GE2E5 U 25GEP2E5 U 30GE2E5 lt 3WAY MULTI gt U 16GF2E5 U 20GF2E5 U 25GF2E5 lt gt Table of Contents A Symptoms that are not MaIFUNCTIONS cccececee cece eee eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeaaeeens LA Before troubleshooting W MULTI series sssssssssnnnnnnnnnnnnnnnnnnnunnnnnnnnunnnnnnnnnnnnnnnn IL 1 W MULTI Series system overview ssssssssssunununnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn Il 1 2 About backup operation during maintenance work ssssssssssssssnunsssnnnnnnnnenns IL E Te EE Ma EE IL 3 1 Malfunctions without any display ccccccceeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeseeeeeeeeeeees IL 2 Remote Controller alarm display cccceccceeeeeeeeeeeeeneeeeeeeeeeeeeeeeeeeeeeeeeaeens IL Error Display and Troubleshooting ccccccccceeeeeeeeeseeeeeeseeeeeeeseeeeeeeeeeeeeeeeees IV 1 1 Precautions before Troubleshooting sssssssssssssnunnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn IV 1 2 About the Error Detection Procedure ssssssssssssssnuusnnennnnnnnnnnnnnnnnnnnnnnnnnnnnne IV 1 3 Engine Start Standby aco se sacs diac cscs see eege Se
86. S mre TTT du TTT Tw ee III e a IL coe a all all Ue oY a ello le a oa Br fy coo i ees EE ap ei Ze E E a five Geh base a8 s a Le 8 d by SR s LILI J No Name Position in the diagram 1 CN002 yellow A 1 2 CN085 pink B 3 3 CN084 purple B 3 4 CN028 yellow B 2 5 CN041 white B 2 6 CN033 white VRR B 1 7 CN022 white B 3 8 CN025 black B 3 9 CN040 red Exhaust temp B 1 3 Converter board O mam LL HONO NYS YSE A0079 1004 L nou Ae T A ROG JPOOI JP003 rem ug E LENY teow ooey E z L50 ZE ie 109 S ett 8 LW gio 1FA4B1B116000 0 PCB assy E CR GCH355M2ZE MM 3 gt ezag CT an een Q 0038 C066 1C016 C060 POWEI 0044 C084 No23 H
87. S Se N Se 940 1 940 S Or Oo e H ale ke a W E ie I N oO aS ele fe S SE ae Te E ka a eke a aos a Ayo Aee ayo 2 Re A NW Dn Ac lod ES un 1HM OY Sone es T a78 Eet alc o a34 EEk a34 ao lt s qaa ele 134 JE SSE Ta PE E Sp SS Bs aas Ge a34 as oe LS ase uS oun TL 940 n EE E SSC oe V 3 E 2 b 5 E ax 2 S pN 2 me o gt 29 awa fl Aug sac Z afer o r w vu Sep SENG Zo De amp EE al fe 8 ER 2E A Suosi S En a 2S 2 gt IS C C ET 2 SE ZZ 2 Sch 22 o DEE DEE a 6 gt 2 02 a2 Fig a40 EE 9x0 EC vc E gs V Ea NE ease 5 Est a Ke Zu aE S 5 Z E ae Aug Jeck Aug PR ZU 2o mal NE ilk Lo RETI ot wal alls 732 BER Ca fa ys E 18 A Ge al EH 18 St SS EIS 7a saa CSS a gt alt 134 vo SHE moo e SA 5 E lz ao 6 o E aay als aay go ADAC AE EN D DI oop D va qu 940 Eiere ob AOZAZ LIC ldd gt gt afosino7noozov 124 EN E 2I Ee o Le 1o T2 nozog a Fe MESSE J34 a V EES na ef ea SR 38 am al E Sea T ie 8 HE Ee Eten om oS x AASL Ad SCH Q So mi EK a19 DN ADAM 3A FY ost Lbeannnzag 118 Son ra on tH ENZ ale GEN 940 Joz pe Sec n8 D d ae Ss AOZA 1 J0 UN 2Sar O n nes Lag oc garage Nes Jerome gtje aay aay Se a aag Jat gt u oyoo pe MOA a E z gay mS fe SE sna ZC BS 25 12 Z tO AM H Nea ale LHM 6 Eslis Loss AN lee spa5 Hozo 134 HE naa ek bas aay Coy CHA 1g i STE Lut mesure eZ WER a E SSE coe
88. T WARNING LED light When pressing the UP S005 key When pressing the DOWN S006 key After entering the setting start operation or setting change operation completed press the SET S007 key for one second TEST WARNING LED off Press the HOME S004 key for one second before confirming setting 00 to 02 Setting range 0 3WAY MULTI 1 e 2 e r CH C 9 Model 2 setting Level 2 Rejection conditions Operations to start settings Operations to amend settings ru rus LI LU DI we ut 1 Example e rm Li Setting confirm operation method Setting cancel operation method Setting range Cannot be accepted when the indoor unit is operating Press the SET S007 key for one second After performing the operations to start the settings press the UP S005 and DOWN S006 keys to change the set values The TEST WARNING LED will be illuminated When the UP S005 key is pressed When the DOWN S006 is pressed Press the SET S007 key for one second after starting the settings or after amending the settings The TEST WARNING LED will be extinguished Press the HOME S004 key for one second before entering the Standard W MULTI 3WAY MILTI No current setting Standard Panasonic ANA nN BP WN ra CO No current setting W Multi Panasonic model 3WAY Panasonic model
89. TV 102 P26 Clutch Connection Error Error detection method A Clutch Contact Failure is assumed when the following factors have occurred 5 times e When compressor vane assessment 60 seconds failed during startup e When revolution speed did not slow down and there was no change in pressure after 3 minutes of clutch operation during complete engine combustion Troubleshooting 1 Yes 5 1 Clutch 1 1 Does each clutch operate normally after starting the engine N CR Oo 2 as SE Yes 2 2 Wirin 2 1 Check conductivity of wiring in clutch that became defective EE g No Repair wiring oo Yes 3 1 2 2 Poor contact in wiring of clutch that became defective No Repair wiring 3 P p Yes 4 1 Board 3 4 If the defective clutch is clutch 2 check if DC voltage is applied to outdoor main board connector 4P blue CN017 No GE outdoor main oar 4 F Yes 5 1 Electric 4 1 Does the relay RY1 in clutch 2 operate normally component No Replace relay 5 sA merece Yes Compressor Replace 1 Is compression defective Compressor No Keep under observation e For board and Electrical Wiring Diagram see Chapter 6 e Outdoor main board page VI 2 e Outdoor power board page VI 3 e Converter board VI 4 e Indoor control board for DC motor models page VI 5 e Outdoor Unit Electrical Wiring Diagram page VI 6 Reference Electric Circuit Diagram A B 3 CL2 clutc
90. Taat right figure will bedisplayed The LEVEL LED D053 will light DOWN SET 006 5007 O 4 Press the UP S005 or DOWN S006 key to display E 5FAr right figure Press the SET rt rt key S007 for one second or more mmm om amw The TEST WARNING LED D052 will light and J l J the distributor mode will be set DOWN SET 006 007 O oO Start test run and set engine rotational speed Start test run and select naif forced engine rpm setting and set 800 min Start test run 1 Press the HOME key S004 for one second or more Menu item number na i right figure will be displayed UP DOWN SET s005 s006 5007 O 2 Press the UP S005 or DOWN S006 key displaying the menu item numbers Select menu item na DH in the figure below The display EES figure below will appear LI l a a DOWN SET 006 5007 O O O 5004 HOME Q 3 Press the SET key S007 Taat right figure will be displayed The LEVEL LED D053 will light Press the SET key S007 for one second or more The TEST WARNING LED D052 will light and the test run will start Set the en
91. W MULTI Outdoor Unit Indoor nit Indoor Branch indoor outdoor control wire Ground faults or short circuits can also occur in the indoor outdoor control wiring before branches V 55 e If communication error occurs check the sensor s ground fault e Check sensors thermistor ground fault Before checking turn off the device and remove target sensor from the board before performing measurement 6 Ground fault check Measure the resistance between one end of the indoor outdoor control wire i Yes Good and the point of ground screw as well as the resistance between the other 6 1 ine operating line end and the point of the ground screw Are both measured N 6 2 resistance values in MQ unit infinite S 7 6 2 Replace thermistor and wiring V 56 punols Dorop Sey rg punoub JOSUS e BIULSIS J SI aal a puepuelg yun J00pu Ca 7 pi20q eUILUJe pue M3198 Dir ay uaamaq auessa enseayy josues lun J 1 pleog Eug pue uerg punouB ay UsaMjeq 2 UE eunseayy smalos DUDOID pue Sain JOSUBS out JO YJOG JO MaJOS DUDOID pue DUU JOSUdS y UBEMjeq 0ULBJSIS J y dINseaw ajqed uoesado y Aq Deauugo syun JOOP NO OOPU 9y Jo yORS 104 S IUN JO JMO UO LU Oe yne DUDOID 1o siwuay adA JOSUaS Syne UOWedIUNUWWOD UI US OSIE IN S Ne DUDOID Josuas X99492 DEL DUDOID JosSuaS pseog Jeue ziun JOOp NO y pue pJeog IOnuo yun JOOp no ay UsEeMjeq BulIM Oe pu
92. a Seu i ag sjo Se oo nn eee SN gt x a SAE Be S2 E 8 22 BOS HADZADOZIV wae ER 2 Sa os 220 2 SS LHM es y o SEL am mS Sg S aa 1n Ee DON amie has 8 grs Eos oo Ne ddy 0 z TP IT ae 38 o LH SE LH Ze D s lleg vee SE mp 23 ade L gt one I m ans ini TL 2 x 478 ONS SSeS Zor STs ie E e FJeas ant gt o ji J P aa arsson 8 EE SE Ha a ws z ia 258o OND Nu ao 318 2 3b ofm ORE a39 o SS St z 26 be JE CH SL 43 2 z z saa aE ssel z a ONS Foo Goes Nua Lhez EN C Sa E e Gi 202 ars HESE fin let us lie F ZS EE d EE 2G E 039 Ss ws S7 279 na ER 2 2 agg ONS eam S Be f BE LHM E a Fe SE mss ane D kk Omi E Sse S na EE ma 52 S a 2 gt oo oO oO RR E T aay OS Seam S Zen SD E E aay Ciel SS ek 242 3 2 EE d o Ni o gt alaa g E le o TAE ag EI run og gt cx gt Le lt A OND zou ag EI 940 BE be ER TONG KE KD ADI a EI a siele a28 iz BEI ef E az DE 259 0N9 PE z orz Ey Ke e 2 ofa oor Re i Ser Soo z3 2 4718 Sele NYS KOAZ a a ESCH 2 aa SE ES H aay TL aay a ju lt gt 25 GE oMi 6 Se el let vm ef MARA hing Bes g ag SE ER 340 let G oo dS z es eran alakas V ic ge a P IJ N aa tM aa eE SoS AE E SE gts ase os SE 8 So 2 SECH w GN eges oZ INS au SE SE AN E Be e ZF os o Dfa oT T ee e222 F 4 un ao F s ja 030 Sal e EMA ne SE LHM S Ess EES d ie JO gt u o s elek A eg gr Sng ale 378 EE 1 eee aay wo amp Fes ine qo log e a DN S
93. age VI 2 Outdoor power board page VI 3 Converter board VI 4 Indoor control board for DC motor models page VI 5 Outdoor Unit Electrical Wiring Diagram page VI 6 TV 59 F04 06 08 12 13 17 18 H08 Outdoor Unit Temperature Sensor Error H08 temperature sensor for measuring the oil level will only detect the oil surface with W Multi Re check the settings if it is not the relevant model Setting confirmation method The No 10 FirSt Sub display on the outdoor unit s control board It is not a W Multi if this is set at Sub 00 It is set for W Multi if this is set at Sub 01 or Sub 02 The two inlet temperature sensor for the outdoor unit s heat exchanger unit is only connected to the 3WAY A F06 message will be issued if the outdoor unit is set as a 3WAY model but is a model other than a 3WAY model In this event the model setting must be checked and corrected Setting confirmation method The No 10 2 3 display on the outdoor unit s control board Set at 3WAY if set at 02 Correct this if the outdoor unit is not actually a 3WAY model If the setting is correct or if F06 is still issued after the setting has been corrected refer to 1 and 2 below and carry out a normal malfunction check Error detection method An outdoor unit temperature sensor error constantly detects any broken wires or short circuits and an error is determined when error conditions are met once Error conditi
94. allel array address on the water heat exchanger unit 2 6 eo Set the parallel array set at 1 DI No address at 1 5 3 Are the terminal resistor switches on the remote controller and Yes 4 1 Terminal 3 4 On water heat exchanger unit s control board located at both Set the terminal resistor resistor ends of the wire linking the remote controller with the water No for both ends of the link heat exchanger unit set at ON wire to ON 4 4 1 S the remote controller s wire severed connector or terminal Yes Repair the severed wires Remote disconnected No 4 2 controller S ge Wires SE a Yes Repair the short circuit g 4 2 s the remote controller s wire short circuited wires No 4 3 linking Yes Repair the ground between 4 3 ls the remote controller s wire grounded the remote No 4 4 controller i Yes Switch the wires around 4 4 Is the remote controller s wire polarity reversed to the No 4 5 water heat gt exchanger 4 5 Are the remote controller wire TB5 4 TB5 5 and outdoor Yes Repair the wiring unit unit wires TB1 connected to the wrong places No 5 1 5 ved Set up noise Noise 5 1 Is a source of noise located nearby countermeasures No 6 1 6 Yes 6 2 Remote 6 1 Have the settings been made in accordance with the remote Repair the settings in controller or controller s instruction manual No accordance with the peripheral instruction manual equipment p SE Yes Restore 6 2 Does a repaira
95. amage must be no cracks or signs of electrical current leaks 3 Must be no carbon or residual oil attached 3 1 1 Remove the front cover and diaphragm 2 Remove the valve and valve lever assembly 3 Inspect the diaphragm for damage or tears and the valve for its operation status 5 1 1 After warming the engine remove all spark plugs 2 Set the compression gauge in the spark plug hole 3 Set the outdoor unit s main board to No 4 test run forced settings and set the enforced cranking mode to Er Jalal 4 Use the DOWN key or UP key to start automatic cranking for 5 seconds 5 Check that the gauge value exceeds the following threshold values Repeat and confirm step 4 three times for each cylinder Engine Compression Threshold 9 lower threshold Mpa K21 1 55 K25 1 62 6 Reset the compression gauge in another cylinder and repeat again from step 3 7 The procedure is complete when all cylinders have been checked 5 4 See Chapter 5 Inspection and Adjustment of Ignition Timing for details on the procedures TV 10 A07 Fuel Gas Valve Error Error detection method e An error flag is set when it is judged that the fuel gas valves did not close when engine operations were halted excluding when halted owing to malfunctions and an error will be triggered when this occurs five consecutive times Troubleshooting 1 Set the STOP switch
96. an 2 1 or short circuits Coil resistance should be around 2 6Q for motor motor each phase No 2 2 Is the fan motor connection position correct on the power supply board OK 2 3 2 2 Is FM1 connected to FM1 and FM2 to FM2 Confirm that 3P black and 5P black connectors are paired NG Correct the connection together Replace power board and keep under observation 2 3 If P22 reoccurs replace outdoor fan motor e For work procedure for replacing outdoor main board see 5 Reference Document e For board and Electrical Wiring Diagram see Chapter 6 e Outdoor main board page VI 2 e Outdoor power board page VI 3 e Converter board VI 4 e Indoor control board for DC motor models page VI 5 e Outdoor Unit Electrical Wiring Diagram page VI 6 Reference Electrical Circuit Diagram A B 2 3 IV 101 P23 Water Heat Exchanger Unit Interlock Error for only water heat exchanger unit Error detection method An error is detected when the following conditions are met e After a hot and cold water pump operation command when the hot and cold water pump interlock signal no voltage a contact is not ON within 5 minutes e When the hot and cold water pump interlock signal turned ON once but turned OFF again while the hot and cold water pump operation signal continued Troubleshooting 1 Is the hot cold water pump operation command wiring Yes 1 2 Water heat 1 1
97. and 2 No 1 3 4 3 Use the instructions in P26 Clutch Connection Fault to adjust Yes See section on page 26 operation and wiring of clutch 1 and 2 Any problems No Keep under observation 2 Replace Replace a compressor that is locked compressor Measure the amount of chiller oil in the compressor when it 2 1 Yes 3 1 is removed Fill the new compressor with an equal amount of chiller oil new oil before attaching it to the outdoor unit 3 Clean the cooling tubes a d Use our Replacement material as a guide to cleaning the Cleaning 3 1 n wie No Process completed Eech system using liquids that are normally present in the system using liquid normally handled by a device IV 90 P13 Refrigerant Circuit Error 3WAY Error detection method e The indoor unit outputs this warning when it determines that a compressor outdoor solenoid valves system refrigerant should be inspected e For detailed inspection procedure see P13 Refrigerant Circuit Fault W MULTI e The system stops and there is no automatic reset when this warning is output Troubleshooting 1 Pressure 4 1 For adjustment of the pressure sensor see adjustment Se sensor procedure section F16 inspection NG Repair 2 Use the No 4 test mode v_open valve open to equalize the Check for refrigerant Inspect pressure to assess whether amount of refrigerant is
98. ange from the minimum speed to the maximum speed governed by the engine in units of 100 revolutions Ignition timing check When the operation conditions stabilize select oof operation data display and display 5 engine ignition timing Check that this value is the value shown in table 1 1 Press the HOME S004 key for one second or more Menu item number oof D figure below will be displayed The TEST WARNING LED D052 will light After that 2345 as in the example below where the engine has 12345 operating hours will be displayed The TEST WARNING LED D052 will light In this state press the SET S007 key The LEVEL LED D053 will light TI Ll L UP DOWN SET s005 006 5007 gt a gt L l l DOWN SET s006 5007 O O O O O ae EE E E d 5004 HOME Q 5004 HOME Q 2 Press the UP S005 or DOWN S006 key to display 5 engine ignition timing Check that this value is the one shown in table 1 below Table 1 Ignition timing adjustment value at 800 min K21 K25 G propane G 13A912A K21 K25 engine 10 BTDC 10 BTDC 3 Attach the timing light on the high tension wire for the no cylinder of the engine and check the ignition timing refer to table 1 above Compare it to the 5 engine ignition timing value displayed in 2 above
99. ard Does E02 disappear several minutes after disconnecting said Yes 12 3 22 connector on the indoor control board When controlling with two remote controllers and the wireless remote controller is the main set N 2 4 the other remote controller as the main SE 2 3 Replace the removed option board or wireless remote controller operating unit wiring and all Yes Repair wiring 2 4 Short circuit or misrouting in indoor unit remote controller wiring N Replace indoor control board The designation is used in the table to indicate indoor boards for DC and AC motor models There is no TEST pin on the indoor board for AC motor models See 5 Reference Document for checking remote controller For board and Electrical Wiring Diagram see Chapter 6 e Outdoor main board page VI 2 e Outdoor power board page VI 3 e Converter board VI 4 e Indoor control board for DC motor models page VI 5 e Outdoor Unit Electrical Wiring Diagram page VI 6 e See instructions packaged with servicing indoor board for procedure on replacing indoor control board IV 33 E03 Indoor Unit Receive Failure from Remote Controller Central Error detection method 1 With indoor unit connected An error is determined when no transmission is received from the remote controller central for 3 minutes or when no transmission is received from the central equipment for 15 minutes When transmission had been normal but the remote controller wi
100. arning history press the temperature setting a button or e button and select the item code 01 04 To check warnings for other groups press the Switch Group button or _ _ button and select the group number To clear the warnings press the button This deletes the entire warning history for the currently selected group To end the servicing check press the button TV 104 P31 Group Control Error Cannot be detected when the water heat exchanger unit is connected Error detection method Under the following conditions all non master units in the remote controller group display this error and stop e When remote controller linking wiring is connected to an indoor unit independently controlled by a remote controller L07 e When multiple master units exist within remote controller group wiring L03 e When indoor unit fails to receive from remote controller central E03 Troubleshooting 1 4 4 8 this indoor unit independently controlled by remote Yes 1 2 Remote controller No 1 3 controller In the remote controller detailed settings mode confirm independent control then disconnect roup wirin z SE Soe the remote controller group link wiring In the remote controller detailed settings mode check the group settings If set to Ve Independent correct settings e See 5 Reference Document for detailed remote controller settings IV 105
101. b Select data code 1 3 using the up and down keys and press set key for 1 second or more c Use the up and down keys to change the display data to compare outdoor heat exchanger inlet temperature data code 16 with compressor inlet temperature data code 14 If the outlet temperature is lower the outdoor solenoid valve may be locked IV 99 e 12 1 Check high pressure sensor Compare control board display and gauge display Install gauge on high pressure side and display the outdoor Yes To Confirm pressure main board compressor outlet pressure Use No 0 Operation while stopped data display data code 11 Is the difference between No ToO display value and gauge pressure within 0 1MPa Operate heater or cooler and check the outdoor main board Yes Pressure sensor is Confirm pressure compressor outlet pressure display normal while operating le the difference between the display value and gauge pressure within 0 1MPa No jo Is th DC 5V volt bet th td in board ie Check outdoor a Je there a voltage between the outdoor main boar an boad connector 6P red CN049 No 4 and No 6 No See Sutdoormain oar voltage b Is there a voltage equivalent to gauge pressure between yeg Replace outdoor main the outdoor main board connector 6P red CN049 No 5 and board No 6 No Toc c Wiring connection contact poor or wire broken between Yes Repair wiring control board connector
102. been met are displayed on the 7 segment LED display e There are 6 startup conditions Some conditions start the engine automatically after a specified time period while others cause it to stop with a warning e Display Method The startup conditions see table below light at engine start up No 0 normal display only e Startup Conditions Displayed in Engine Start Standby Mode Start condition SEH Standby Condition Display Code Pressure equalization Refrigerant high and low Peg Pressure equalizing display max 2 min pressure E ER peng Waiting for the temperature to drop to below 115 C p P SC Malfunctioning if the temperature does not drop within 10 minutes Bit race checkin cinemas pus Waiting for the compressor inlet pressure to exceed 0 1 MPa g prog _ Malfunctioning if the pressure is not restored within 10 minutes E ET oan Waiting for the temperature to drop to below 80 C g H Se Malfunctioning H the temperature does not drop within 10 minutes Airnieoheek ACL BO Checking that air in the coolant circuit is being mixed requires a maximum of approximately 2 minutes ee i or Waiting for the coolant pump to exceed 2500rpm A Goolantcircult CHECK N progress SE Malfunctioning if the pressure is not restored within 3 minutes No condenser A P 4 Waiting for the 3WAY solenoid valve in the indoor and outdoor units 3WAY model only a H H to complete switching so the system can secure the
103. ble fault exist in the remoter controller or remote controller board No Replace the remote controller e For board and Electrical Wiring Diagram see Chapter 6 e Outdoor main board page VI 2 e Outdoor power board page VI 3 e Converter board VI 4 e Indoor control board for DC motor models page VI 5 e Outdoor Unit Electrical Wiring Diagram page VI 6 IV 36 E04 Indoor Unit Receive Failure from Outdoor Unit 1 When the indoor unit is connected Error detection method After turning power ON with no transmission from outdoor unit for 3 minutes Or an error is determined when the outdoor unit does not respond e Outdoor unit power is OFF e With link wiring when outdoor main board terminal resistor switch S7 is set to ON for several units e When turning power ON after completing auto addressing when the number of indoor units has changed e When indoor unit power is not ON e Inspection pin CN062 CNO71 or TEST pin CN064 on the indoor control board is short circuited e Non volatile memory EEPROM is not inserted when changing indoor board e Inthe remote controller detailed settings mode the indoor address is undetermined e Indoor unit addresses duplicated e Indoor outdoor operation wiring is short circuited or broken e Error in the reception circuit on the signal output board option board e Breakdown of outdoor unit e High voltage AC200V etc applied across indoor outdoor operation wi
104. blem been solved No board e For details on the procedures for replacing the water heat exchanger unit s control board see Chapter 5 Reference Document e For details on board and electrical wiring diagrams see Chapter 6 e LJ Set SW4 at tens place and SWS at ones place The set temperature range is between 35 C and 55 C Example If SW2 is set at 4 and SW3 at 5 the set temperature is 45 C IV 77 e 2 4 The coolant temperature setting is performed with SW2 and SW3 green rotary switches Set SW2 at tens place and SW3 at ones place The set temperature range is between 5 C and 15 C Example If SW2 is set at 0 and SW3 at 7 the set temperature is 7 C e 3 2 Position 3 on SW1 3P dip switch selects whether the temperature is to be set at a positive value or a negative value Set Temperature SW1 Position 3 Negative ON knob at the top Positive OFF knob at the bottom Set SW2 at tens place and SW3 at ones place The set temperature range is between 15 C and 5 C Example If SW1 position 3 is set at ON SW at 0 and SW3 at 5 the set temperature is 5 A setting between 5 C and 15 C can be set In this event set position on SW8 4P dip switch to OFF with the knob at the bottom IV 78 L19 Duplicated Water Heat Exchanger Unit Parallel Array Addresses Only detected when the water h
105. cation Failure cise ccitsecsssasesesetotraessnlannnvaceserssedes IV 53 E20 No Indoor Unit in Automatic Address Setting 7 IV 54 E24 Communication Failure between Outdoor Units for only W MULT IV 55 E26 Inconsistencies in Number of Outdoor Units for only W MULT n se IV 56 E31 Communication Failure between Units ccccccceeeesseecceeeeeeeeeeeseeeeeeeeeneneeeeaes IV 57 F01 02 03 10 11 Indoor Unit Temperature Sensor Emor IV 58 F04 06 08 12 13 17 18 H08 Outdoor Unit Temperature Sensor Error IV 60 F16 Compressor Inlet Outlet Pressure Sensor Error IV 61 F20 Clutch Coil Temperature Sensor Error sssssssessssneneeeeerrreerrnrrrrrrrnrrrnrrnnrrnrrrnnnnnnnnnn IV 62 F29 Indoor Nonvolatile Memory EEPROM ETfTOf seeeeeeeeeeseeeerrereseerrerrrresssrrrrrrenee IV 63 F30 Real Time Clock RTC Function EOT sseeeeeeesesrireeeeeeeerrrrrrrresesririrrrssssrrrrren IV 64 F31 Outdoor Nonvolatile Memory EEPROM Errol ss ssscccsiccescacssecceestecstencsteeccereevervcvns IV 65 HO7 Compressor Oil Depletion Error for only W MULTI ccceeceeseseeeeeeeeeeneeneees IV 66 L02 Inconsistencise in Indoor Outdoor Unit Models non GHP equipment connected IV 67 LOS Multiple Main Units Set for Group Control iesgeaegeeegngegegraeg geste Skgeeee deeg Zeg geen IV 68 L04 Duplicate System Outdoor Unit Address Gettmg eee eceeeeeeeeeeeeeeeeeeeeeeeees IV 69 LOS 06 Dupl
106. ccurs with the converter only detected with HP Note Depending on the model some items are not displayed V 21 Oil Change Time Display No 02 Level 0 lt This function displays the oil change time Key operations are used to perform the oil change time clear setting m ds a D E 1 Oil change time display Level 0 This display indicates the current oil change time Example o t 2 3 4 Example 1 234 hours 2 Oil setting selection operations Level 1 Press the SET key when the oil change time is displayed to display the following The use of the DOWN and UP keys at this time enable the oil change time clear setting to the selected Display Function Down ol Jeg iu Oil change time display clear setting Up lof th Aldi Forced oil refill setting D Model Type Display No 03 Level zone iz This function is used to display the outdoor unit model type It may also be used for the double speed setting fast forwarding the forced 3 minute off timer Operating the UP S005 and DOWN S006 keys causes the menu to change 1 Model type display Level 0 Outdoor unit model types are displayed in the following way Display TE 45 0kW models HISE 56 0kW models BOGME 71 0kW models Lali 85 0kW models TEIE 2 Double speed setting Level 0 Operating method Releasing method Operati
107. closed The forced setting in progress message will be cleared the TEST WARNING LED will be extinguished and the display will return to the forced setting selection operation 8 Coolant air discharge mode level 2 Used for coolant air discharge Be sure to set up the air discharge tool If the air discharge is not enough perform this control operation again and then check to make sure the air has been discharged Display 5 HI lr Rejection conditions Operating method Operation details Releasing method Test run in progress automatic addressing in progress stopping due to abnormality When the coolant air discharge mode is not set press the SET S007 key for one second TEST WARNING LED light Operate the coolant pump coolant 3 way electric valve and hot water 3 way electric valve to discharge air During operation in air discharge mode coolant pump coolant 3 way electric valve and hot water 3 way electric valve are controlled automatically to discharge air Forced setting in progress display TEST WARNING LED light is shown during this time Automatic operation is canceled The forced setting in progress display will be canceled TEST WARNING LED off 9 Forced engine distributar mode Level 2 Used when fixing ignition timing Display Rejection conditions Press the SET S007 key for one second while forced engine distributor mode is Operating meth
108. conditioning according to the operation load of the indoor unit Figure gives an overview of the system In the example the W MULTI series refrigerant system 1 connecting to two outdoor units and 3WAY MULTI refrigerant system 2 are linkwired by using an operation cable for the indoor outdoor units This is an example of a dual system consisting of two refrigerant systems Refrigerant System 1 Refrigerant System 2 Indoor outdoor control wire Indoor outdoor control wire Indoor unit Indoor unit Indoor unit Indoor unit Indoor unit 1 1 1 2 1 48 2 1 2 2 Remote controller Remote controller Remote controller Refrigerant Indoor branch aa tubing Ei E i o CO 2 E bb a R efrigerant tubing Refrigerant tubing Outdoor branch tubing 1 Indoor branch tubing Refrigerant tubing main tubing D po E S oO E E D He E Cc D oO SD z oO in W MULTI WwW MULTI 3WAY MULTI outdoor unit Ree unit outdoor unit 1 1 Indoor outdoor control wire Fig 1 GHP System Configuration Example 1 Refrigerant tube Figure is a simplified diagram Actually two refrigerant tubes consisting of a gas tube thick tube and a liquid tube thin tube are used Each W Multi outdoor unit is connected to an outdoor branch tube and then connected to the main tube For the indoor unit the refrigerant tubes branched from the main tube are connected to the gas tube and liquid tube of each indoor
109. connected An error may be assumed when no regular communication occurs between the outdoor unit and water heat exchanger unit for 3 minutes e When the power to the outdoor unit has not been switched on e When the terminating resistance switch S010 on the outdoor unit s main board is set to OPEN e When the number of indoor units set with parameter No 10 on the outdoor unit s main board is anything other than two e When the address switches on the water heat exchanger unit and outdoor unit do not match up e When an error occurs with the indoor outdoor operation wiring short circuit severed wires ground e When electrical voltage is applied to the indoor outdoor operation wiring e When the outdoor unit has broken down e Effects of noise IV 38 Troubleshooting 1 Turn the power on and Yes k Power supply 1 1 Is was the outdoor unit power OFF wait 3 minutes No 2 1 2 2 4 8 the terminating resistance switch SW010 on the Yes 2 2 Setting outdoor unit s main board set at SHORT No Correct to SHORT switches Yes 2 3 2 2 _ Is the number of indoor units set at two No Set 2 units Yes 3 1 2 3 Do the system addresses for the water heat exchanger Make sure the water unit and outdoor unit match up No heat exchanger SW14 and the outdoor unit setting match up 3 3 1 S the indoor outdoor operation wiring sever
110. connector PNL 3P green CN080 1 and 3 are open and determines an error e The wiring method and connectors differ among indoor units For details see the electric wiring diagrams for each indoor unit e This input short circuits on the following models when a ceiling panel or front panel connector is connected thus detecting a panel connection Basel Relay connector 8P or 9P PNL ils Ke green Short circuit Indoor board Set Be Short circuit Relay connector 7P Applicable models S 22 28 36 45 56 73ML 8P ceiling panel S 28 36 45 56 73MD 7P ceiling panel S 22 28 36 45 56 73 106 140 160MU 7P ceiling panel S 22 28 36 45 S6MY e The following models short circuit this input upon shipping to prevent this error Basic circuit PNL Relay connector 4P green 4 4 BC i short circuit 2 2 H Indoor board Applicable models FR7 9 12 16 18 25 front panel TDR12 16 18 25 36 48 ceiling panel Basic circuit lt Short circuit Indoor board Applicable models All indoor units not listed above Troubleshooting 1 Is a ceiling panel connection relay connector 7P red or 8P Yes 1 2 1 1 red or 9P red connected Or is a short circuiting connector 4P white connected No Connect Replace indoor control 1 2 Disconnect the indoor board connector PNL green CNO80 Yes board Conduction between No 1 and No 3 in socket Ne aes Poor connection between connec
111. cs for further details 40 C 1 2kQ 50 C 879Q 60 C 6420 70 C 4770 80 C 3610 90 C 227Q 100 C 216Q 3 1 Check to make sure the exhaust heat collection valve is not locked open by following the instructions below 1 Use the Off button on the remote controller to stop the outdoor unit in order to completely close the exhaust heat collection valve Note The valve will not be completely opened if the STOP SW on the outdoor unit s main board is used to halt operations The Off switch on the remote controller or the enforced thermo off switch on the outdoor unit s main board must be used without fail 2 Disconnect the connector CN0725P white on the exhaust heat collection valve after three or more minutes have elapsed since the outdoor unit was powered off 3 Resume operations of the outdoor unit in the heater mode Either as a test run or with remote controller operations 4 Once the outdoor unit is operating measure the temperature of the exhaust heat collection valve s secondary duct for approximately two minutes 5 If it is clear that the temperature has dropped in comparison with the situation before start up then there is a chance that the valve is locked open Everything is normal if the temperature does not drop Note Keep the operation time to a maximum of five minutes 6 Once the inspection is completed make sure the exhaust heat collection valve connector is reconnected and the power source reset T
112. cur owing to the generator wiring being severed e A short circuit has occurred between the generator wiring or inside the generator e When a defect such as no generator belt or a severed generator belt exists e When the cooling fan has been disconnected or when a fan for another engine has been installed Troubleshooting 1 1 1 Is the generator belt connected to the engine Is it Yes 1 2 Generator belt slipping etc No 21 check Ves Replace the belt and the 1 2 ls the generator making any strange noises generator No Replace only the belt 2 Does the generator have a severed wire or a short circuit Yes Replace the generator Generator 2 1 The resistance for each phase on the generator terminals Replace the generator check should normally be between 1 5 and 2 00 No wiring e It is possible to perform back up operations operations as a standard unit with the following operations during break downs 1 Disconnect the generator belt 2 Disconnect all converter wires 3 Set Gen generator parameter on the No 10 First outdoor unit initialization settings to 3 no generator e Perform the following operations to restore the unit to generate power normal high power function operations 1 Install a generator belt and check the tension see the Regular Replacement Manual 2 Reconnect off converter wires 1 and 2 are only used when replacing parts and during back up operations
113. currence of error e Outdoor unit warning data 15 seconds before occurrence of error 1 Display at time of no error Level 0 The following display appears rey re Fe Be re Ma JE SALSE ee 2 Display at occurrence of error Level 0 Displays current error code GELALI 9 Example of engine oil error 3 Error reset operation sequence During display of current error code pressing the SET S007 key for 1 second activates the outdoor unit error reset When the cause of the error has yet to be removed an error will occur again immediately after reset Resetting cannot be performed under the following circumstances Reset cannot be conducted under the following situations e Indoor unit error Indoor unit error reset requires that the indoor unit be turned off e Oil use time Oil use time reset must be conducted with the Oil Use Time Display e All Engine oil level fault cannot be reset Error continue until the oil level returns to normal V 14 4 Error code temporary stop cause code display Level 1 During displays with no error and displays when error incidents occur pressing the SET S007 key causes the error code and temporary stop cause code to be displayed Data is displayed by selecting with the UP S005 and DOWN S006 keys
114. current detection failure F08 Outside air temperature sensor error A19 Low coolant temperature FIO Indoor unit intake temperature sensor error A20 High coolant temperature Water intake temperature sensor error when the A21 Coolant level error water heat exchanger unit is connected A22 Coolant pump error F11 Indoor unit discharge temperature sensor error A23 Crankshaft angle sensor error Water discharge temperature sensor error when A24 Camshaft angle sensor error the water heat exchanger unit is connected A25 _ Clutch error F12 Compressor inlet temperature sensor error A26 Flameout error F13 Coolant temperature sensor error A27 Catalyst temperature error for only models fitted F16 Compressor inlet outlet pressure sensor error with a catalyst F18 Exhaust gas temperature sensor error A28 Generator error detected only with HP F20 Clutch coil temperature sensor error A29 Converter error detected only with HP F21 Clutch 2 coil temperature sensor error F29 Indoor unit non volatile memory EEPROM error System E Communication system errors F30 Real time clock RTC function error E01 Remote controller receive failure F31 Outdoor unit non volatile memory EEPROM E02 Remote controller transmission failure error E03 Indoor unit receive failure from the remote controller central System L Duplicate address and other setting E04 Indoor unit receive failure from the outdoor unit defects E05 Ind
115. d is still too high positioning control 6 When the high pressure area is high but the unit is 23 Momentary stop due to the possibility of a flameout in advantage mode 7 When the high pressure area is high but it is less 24 Momentary stop due to the possibility of the outdoor than 3 minutes since the engine was started unit running out of refrigerant 8 Momentary stop during heating high load learning 25 Momentary stop due to the possibility of a clutch control 2 connection error 9 Pause due to no compressor oil W Multi only 26 Momentary stop due to a rapid rise in high pressure 10 When the compressor intake temperature is high 27 Momentary stop due to a high coolant temperature but the high pressure is also high continuing 11 When the discharge temperature is high but the 28 Momentary stop due to outdoor unit mode switching indoor unit is emitting exhaust being in progress 3WAY only 12 The high pressure is high but it is still within 4 29 Momentary stop due to the alignment of 4 way minutes of outdoor unit refrigerant outlet control valves with another unit failing W Multi only 13 The high pressure is high but auto addressing for 43 High pressure avoided during low capacity heater the heater is in progress operations 14 The high pressure is high but auto addressing is in 44 Momentary stop due to engine oil control progress 15 Momentary stop due to heating high load learning 45 Engine stall due to load
116. d set address individually V 53 11 Indoor outdoor control wire connection confirmation Check the control wire connection regardless of whether there is a warning or not Before performing the check turn off the power of all devices including controllers that are connected to the indoor outdoor control wire 1 Measure the resistance between one end of the indoor outdoor control Yes 2 1 Ground fault check wire and the point of ground screw as well as the resistance between the 1 1 Le other operating line end and the point of ground screw Are both measured N 4 2 resistance values in MQ unit infinite S i 1 2 Because the indoor outdoor control wire has a ground fault search for the location of the ground fault 2 Measure the resistance between the indoor outdoor control wires on the Short circuit check terminal board of the outdoor unit Yes 3 1 2 1 The measured resistance value is around 75 to 1000 When setting multiple ON SHORT to switches with terminal resistor the ve 2 2 resistance value mentioned above is 1 over number of units 1 If the wiring has a short circuit search for the location of the short circuit on the indoor 2 2 outdoor control wire If it is open check the terminal resistor of outdoor board and check the wiring from outdoor board to outdoor terminal board 3 Measure the resistance between the indoor outdoor control wires on the Yes 3 2
117. d wires in the wiring Yes Repair wiring between the outdoor unit s power board and relay board No 15 4 Check the outdoor unit s main board Does a drive output voltage DC 12 V from discharge valves 1 1 1 2 discharge valve 2 suction valve 2 1 and 2 2 exist with v_open valve open in the No 4 test mode Yes 15 5 9P white CNO18 Discharge valves 1 1 1 2 between No 3 9 15 4 Discharge valve 2 between No 4 9 Suction valves 2 1 2 2 between No 6 9 Does suction valve 1 output a drive voltage DC 12 V during Replace the cooling operations No outdoor unit s Suction valve 1 between No 3 9 main board Note that suction valve 1 closes when electricity is supplied the other solenoid valves operate in reverse IV 97 Are there any poor connections or severed wires in the wiring Yes Repair wiring 15 5 between the outdoor unit s main board and relay board No 15 6 Check the relay board Does an output voltage AC 200 V from discharge valves 1 1 Yes 15 7 1 2 discharge valve 2 suction valve 2 1 and 2 2 exist with ne Tv open valve open in the No 4 test mode Does suction valve 1 output voltage AC 200 V during cooling No operations Check the solenoid valve coil The power must be turned off before starting work Resistanc Replace the Disconnect the connectors of the discharge valve 1 1 1 2 P Replace the relay board discharge valve 2 suction va
118. ddress Setting Cannot be detected when the water heat exchanger unit is connected Error detection method An error is determined when an indoor unit is not recognized at auto addressing start up or upon turning the outdoor unit power ON e Indoor unit address is not properly assigned e Indoor unit power is OFF Troubleshooting 1 Power supply wiring Yes 1 2 1 1 Indoor unit address properly assigned No Set address Yes 1 3 1 2 _ Is the indoor unit power ON No Turn power ON 1 3 The indoor outdoor control wire may not be connected between the indoor unit and outdoor unit Check wiring connections on indoor outdoor control wire IV 54 E24 Communication Failure between Outdoor Units for only W MULTI Error detection method An Outdoor Communication Unit Failure is assumed when communications between outdoor units in the same refrigerant system are not possible for 2 minutes e An outdoor unit address has not been properly assigned e Outdoor unit power is OFF Troubleshooting 1 4 4 Have outdoor unit addresses and outdoor unit and number of Yes 1 2 Power connected outdoor units been properly entered No Enter the data correctly supply wirin ton Yes 1 3 g 1 2 Have all outdoor units in the same system been turned on No Turn power ON The indoor outdoor operation wiring may not be connected between the indoor unit and 1 3
119. ddressing See 5 Reference Document 2 o S Yes 2 2 Group control 2 1 Is this indoor unit group controlled No 34 wiring 2 2 Are any indoor units wired into the remote controller group Yes Turn power ON turned OFF No 2 3 2 3 Are 9 or more indoor units connected to one remote Yes Repair wiring controller group wiring No 2 4 Was the remote controller group wiring modified after Yes 2 5 2 4 auto addressing was complete Or were group settings changed using the remote controller properties setting N 3 4 mode SE 2 5 No main unit present in remote controller group wiring Repeat auto addressing 3 3 1 S the inspection pin CNO62 CNO71 or TEST pin CNO64 Yes Eliminate short circuit Indoor control on the indoor control board short circuited No 3 2 board 3 2 S an option board CN060 or wireless remote controller Yes 3 3 CN041 connected to the indoor control board No 3 5 Does E01 disappear several minutes after disconnecting said connector on the indoor control board When Yes 3 4 3 3 controlling with two remote controllers and the wireless g remote controller is the main set the other remote No 3 5 controller as the main 3 4 Replace the removed option board or wireless remote controller operating unit wiring and all eo i Yes 3 6 5 Is the inking on the indoor control board 3 5 ls the LED D002 blink the ind trol board ie ley oO Nonvolatile memory EEPROM on the outdoor main unit is not ins
120. determined when the power source status meets the following condition e Open phase e Instant power failure exceeding 100ms 5 times h Troubleshooting 1 4 1 Ate all power supply voltages AC 200 V Yes 1 2 Power Measure between terminal boards R S S T and T R No Check power supply supply 4 2 Is the power supply voltage applied to all of the board in Yes 1 4 connectors CN005 to CNO07 on the filter board AC 200 No 1 3 Check for faulty connections and defective parts in the power supply wiring between the is terminal board and filter board Repair Turn the power off and then on again and check for Yes Replace the outdoor 1 4 reoccurrence unit s power board Is the alarm triggered again No 1 5 There may have been multiple momentary power failures 1 5 Check the power supply wiring connections for poor contacts and if no error is found keep an eye on the situation e For board and Electrical Wiring Diagram see Chapter 6 e Outdoor main board page VI 2 e Outdoor power board page VI 3 e Converter board VI 4 Indoor control board for DC motor models page VI 5 e Outdoor Unit Electrical Wiring Diagram page VI 6 Reference Electrical Wiring Diagram B F 1 2 IV 85 P09 Indoor Unit Ceiling Panel Connector Connection Failure Cannot be detected when the water heat exchanger unit is connected Error detection method e Detects when indoor control board
121. distances make sure one of them is enclosed in a steel power line conduit When shielded cables are in use make sure one side is grounded Do not use the same cable for signal cables and power cables Fig 1 Do not use multi core cables for two or more signal cables Fig 2 If high frequency equipment exists nearby make sure the units are installed at least 3 m away from them Enclose the remote controller in a steel box and the remote controller wires in a steel conduit or steel conduit pipe Remote controller wires can be connected to a maximum of two items of control equipment to which connections are possible However only one can be used per group for simple remote controllers equipped with backlights They cannot be used in combination It is prohibited for the refrigerant system to be shared between units and for certain indoor units to be group controlled Failure to observe this may result in misaligned modes and certain indoor units not operating Figure 1 Figure 2 Am s SA NZ Bet it 1 B Multi cote cable oo e Multi core cable s Power supply m a Da Signal cable al V 59 Control wire e Indoor outdoor control wire connection example 1 Bus system can be branched to max 16 location Outdoor link is basic Figure 3 Outdoor unit Controller inl unit Indoor ul Indoor unit Indoor unit Remote controller _ Outdoor unit Indoor unit Indoor unit Indoor unit No
122. door Unit Temperature Sensor Error Error detection method An indoor unit temperature sensor error constantly detects any broken wires or short circuits and an error is determined when error conditions are met once Error conditions are given below 1 With indoor unit connected Broken wire detection Short circuit detection Display Sensor name resistance resistance F01 E heat exchanger inlet temperature sensor 330kO r more Less than 300 F03 Indoor heat exchanger outlet temperature 330kQ or m re Less than 30Q sensor E3 F10 Indoor unit intake temperature sensor 270kQ or more Less than 240 F11 Indoor unit discharge temperature sensor 270kQ or more Less than 240 2 With water heat exchanger unit connected Broken wire detection Short circuit detection Display Sensor name i i resistance resistance F01 Water heat exchanger refrigerant inlet 330kQ or more Less than 30Q temperature sensor E1 F02 Water heat exchanger anti freeze sensor E2 330kQ or more Less than 30Q F03 Water heat exchanger refrigerant outlet 330kQ or more Less than 300 temperature sensor E3 F10 Hot and cold water inlet sensor 270kQ or more Less than 240 F11 Hot and cold water outlet sensor 270kQ or more Less than 240 Troubleshooting 1 When the indoor unit is connected vo 4 1 Poor connection contact crimping or broken wire or pinched Yes Repair wiring Se wire in sensor connector and
123. dures for replacing the indoor non volatile memory EEPROM and the indoor control board e Recover EEPROM malfunctions when connected to a water heat exchanger units by replacing the board e See 5 Reference Document for details on the procedure for replacing the water heat exchanger unit s control board e For board and Electrical Wiring Diagram see Chapter 6 e Outdoor main board page VI 2 e Outdoor power board page VI 3 e Converter board VI 4 e Indoor control board for DC motor models page VI 5 e Outdoor Unit Electrical Wiring Diagram page VI 6 IV 63 F30 Real Time Clock RTC Function Error Error detection method e An error is determined when the standard pulse every 1 second from the outdoor main board clock function RTC cannot be read Troubleshooting ae 4 1 Turn OFF the outdoor unit then turn ON and observe If the error recurs replace outdoor main board function e For work procedure for replacing outdoor main board see 5 Reference Document e For board and Electrical Wiring Diagram see Chapter 6 e Outdoor main board page VI 2 e Outdoor power board page VI 3 e Converter board VI 4 e Indoor control board for DC motor models page VI 5 e Outdoor Unit Electrical Wiring Diagram page VI 6 IV 64 F31 Outdoor Nonvolatile Memory EEPROM Error Error detection method e An error is determined when the nonvolatile memory EEPROM on the outdoor main boa
124. e pslOg 01 UO9 PUN JOOP NO BU 104 10 SIS 4 EU OU YOOYO oo SI G JO BOUL SISAI OU J x oo SI 7 pue E JOJ njea BOue sISAs OY U OOL 0 GZ xoudde s G pue Z 10 njea soUe sISel oul JUaSOId JO SISOJ EUIL9 VUn JOOP NO UO UM X Je SINDDO UOHOOBUUODSIP JO ye sq SIM y jdwexg J9 04JU0 sioun Dugeg d oss Eug BUO UU W 00 0 SZ xOuddy puepueys Z paeoq PUIU pue L pueoq EU uaamaq soUe sIsaJ ainseayy Oe UO WOUS J 01 U09 BJOWSY yun yoea Jo pueog jeuiwa y UO 9UEJSIS I INSE N Oe UOHOBUUODSIP JO ye sq M J9 O4JU0D BJOWSY CH LI f pal REES o puepueyg 7 pleog EuUSt pue Maos Dir ay uaamaq soUE sisal eunseayy pueog Eist pue Melos puno au UeaMjaq eouR sisal ainseayy yoauo yne punog V 57 Number units to connect 1 Number of units to connect e Number of outdoor units that can be connected ccc cece cece cece eee Max 30 e Number of outdoor units that can be connected 2 0 ccc cece cece e enna eee Max 64 e Centralized control devices that can be connected cc cece cess eee Max 10 Total number of each type of devices within 1 link wiring is up to 100 2 Indoor and outdoor unit operation lines e Wiring Non polar biaxial wires e Wire types Eco electrical Previous Name previous name Applicable wire code code p standard EM CEE cvv Heat resistant polyet
125. e abnormality may be in the wiring of a system other than that where the warning is triggered For W MULTI units Outdoor Unit Outdoor Unit Indoor Indoor Indoor Indoor ni ni ni ni Wire connecting the systems Outdoor Unit Outdoor Unit Unit Unit Unit Unit For units other than W MULTI Outdoor Unit 1 Wire connecting the systems Outdoor Unit ai Wire connecting the systems Outdoor Unit 3 e When the wiring route is divided into segments by the terminal block of each unit it is advisable to check the wiring connection on a segment by segment basis starting with the segment between the outdoor unit and indoor unit 1 then the segment between the indoor units and 2 and so on This allows you to find the location of the connection failure between units For W MULTI units Ae check the wire between the outdoor unit with the smallest address and indoor unit 1 Then check the wires between 2 3 and so on in order First check the indoor outdoor control wire between the outdoor unit and indoor unit 1 Then check the indoor outdoor control wire between 2 3 and so on in order Unit 3 e Ifthe device contains control wire branched from indoor outdoor control wire there may be failure in the indoor outdoor control wire before branches Outdoor Unit Unit Unit Unit Unit Branch wire Ground faults or short circuits can also occur in the wiring before branches For units other than
126. e coolant Coolant temperature sensor and then measure the resistance OK 2 1 temperature 1 1 Measure the surface temperature and compare the results sensor See 5 Reference Document for details on thermistor NG Replace the coolant characteristics temperature sensor 2 Disconnect the three way coolant valve and check to see OK 3 1 Three way 21 if it is locked Check power source initialization and the coolant current output with actual valve operations Is the valve ve Replace the three way valve malfunctioning coolant valve 3 Replace the outdoor OK ae Exhaust 3 1 Is the exhaust heat collection valve locked open unit s main board heat NG 3 2 collection valve 3 2 Us the wiring to the exhaust heat collection valve severed or OK 3 3 short circuited NG Repair Wiring Keep an eye on the Replace the exhaust heat collection valve solenoid valve Yes situation 3 3 ASSY and perform a test run Does the coolant temperature rise No Replace the outdoor units main board For work procedure for replacing outdoor main board see 5 Reference Document For board and Electrical Wiring Diagram see Chapter 6 e Outdoor main board page VI 2 e Outdoor power board page VI 3 e Converter board VI 4 e Indoor control board for DC motor models page VI 5 e Outdoor Unit Electrical Wiring Diagram page VI 6 1 1 Resistance values of the coolant temperature sensor see the chart on thermistor characteristi
127. e cooling four hours refrigerant will circulate in the stopped unit for four minutes so that refrigerant and oil can be recovered During heating operation of the outdoor unit refrigerant will also flow in the stopped indoor unit allowing recovery of refrigerant and oil The fan in the outdoor unit rotates slowly The outdoor unit fan can be completely stopped or rotated at various speeds by the control system and will be fast or slow as required The fan is especially likely to stop or run slowly during cooling or heating operation when outside temperatures are low During winter the outdoor unit fan may rotate even when the engine is stopped The unit will not switch from cooling dry to heating or from heating to cooling dry e If Being controlled by operation mode is displayed When already being operated by another remote controller the selectable operation modes are limited When the following are displayed on the remote controller e If Being controlled by operation mode is displayed When already being operated by another remote controller the selectable operation modes are limited e If Operation standby is displayed In priority operation standby e If Central control in progress is displayed Operation is limited by the central control unit e A display appears but then vanishes Valve open or water circulation has been set with the outdoor main board menu item No 4 test operati
128. e display setting E Single phase setting Tube connection confirmation W Multi only x n 0 H H Heater auto address setting F LU H Cooler auto address setting Settings r E E cl e 3 and F alr are set at the time of shipment and must not be amended as a basic principle If the values differ after replacing the non volatile memory or clearing the memory etc reset the values to those listed above V 36 3 System address setting Level 2 Rejection conditions Setting start operation method Setting change operation method d a ulk Example oiuik Setting confirm operation method Setting cancel operation method Setting range Not accepted during indoor operation Press the SET S007 key for one second After entering the setting start operation mode operating the UP S005 and DOWN S006 keys makes it possible to change the setting values TEST WARNING LED light When pressing the UP S005 key When pressing the DOWN S006 key After entering the setting start operation or setting change operation completed press the SET S007 key for one second TEST WARNING LED off Press the HOME S004 key for one second before confirming setting 0l to 31 4 Number of connecting indoor units setting Level 2 Rejection conditions Sett
129. e eee cum 980 ee oe z a apeg ne Oo 3 S00 Ns H CC 00 Zi a5 va JS lt es cp a a a or Don Zs N agy wfe Sie a gt l Oy NEE T5 a Geek JS SpE ya Sg ne a eee ER se a o5 sol ANd TORE HBS E p2 poke oun ZS aay a SE SIS o SES GE Nag ofe LHM z 23s 25 z zz S nee Geer Janik E BG LHM sists Sea log 8 Ch 78 S 2 ngen aay Bleser z 940 EK lt gt E es RE SC Ato an PZ SOx Luo ang z S ree A EI Shs Bor ee o S 52 5 2 az m go gt a A18 omno gt So oo BEI zs BEI end S 2 AO xo mao 980 Kzal NZAMm a 2fg 0N9 Faral eoc ER M tgsel ANd mice mesos 3A a WEI cee e Si Se aay SE em S a afeh ag So S28 Ree D Aug a seo o M1 See ge 4 Sore w LHM ZE LH Son F a29 E w SIS Come oe am a34 Holk a34 H6 GE LHM 0 Ain als SC sao z Dane con Flaus EN 378 ane as Daer sgorio s nig afs na see 5S E EI 2 hzi 038 Fk 034 ap Sih BEIEN Bed 940 aoza oaae a JS 980 8 Des NYa AOZ Dal ME CS S d na z ozzl e Ee ZS S l ng efe nqa a 2 N aag 3 2 a AOZA 0H Ee E Ai ao G 2 ac neg 2 LHM AOZAZ OOH 2 FE au AB Bee 2 Add mm EE aay Z ACTIO 940 Se ey ANd S SI aS ely Nug ls Vu S R 8 ES Cl eee A Q saghe a319 mol lt 5 5 ZC ER op ef Dem eet 8 a S g Die 2S9 vo R on HK sha a OBES aa ZE SC ELE eine y e CH 2 ty L o SE SE i AM a Eno ERD alen Se Oo 3 a 2 SEDA AO A00Z IV Azer Fano Cu ee 3 be E Zu Kee EG agy EZS e LHM si LD os S am LHM 5 o z g 94 8 ZS szel z F S M D aSa c
130. e indoor OK 5 1 4 3 unit operation indoor electric valve opening 20 steps and check to make sure there is no coolant leakage beyond the ue Replace indoor electric indoor electric valve valve unit 5 OK Replace outdoor main Pressure 5 1 Pressure sensor inspection refer to the section on F16 for the board sensor inspection procedure inspection NG Repair e For work procedure for replacing outdoor main board see 5 Reference Document IV 94 P19 Four way Valve Lock Error not detected 3WAY MULTI Error detection method e Determined after 6 minutes of complete combustion time has passed during heating operation e An error is determined in thermostat ON indoor units when the highest indoor heat exchanger outlet E3 temperature is detected to be lower than the outdoor heat exchanger inlet for 5 minutes continuously e W MULTI only Handled as a fault only when four way valve control performed at first startup following a power supply reset or heating cooling switch fails e W MULTI only when a pressure differential fault the high pressure of an outdoor unit working at full combustion in proximity with an another outdoor unit working at low pressure detected between W MULTI outdoor units is assessed as a fault Troubleshooting common 1 4 4 Check the 4 way valve temperature during heater operation Yes 2 1 Check four Switched
131. e of the outdoor units is detected to have stopped abnormally e Alarm P30 group controlled device fault is sometimes displayed at the system controller IA 4 Error Display and Troubleshooting The description of each error display begins on a new page Descriptions of some troubleshooting procedures span several pages When you refer to an error display be sure to first check whether the description of the troubleshooting procedure spans several pages 1 Precautions before Troubleshooting In order to ensure correct diagnosis and prevent accidents electric shock equipment malfunction measuring instrument damage etc be sure to observe the following precautions Be sure to use a digital tester for voltage measurement Avoid using a tester with an indicator needle to prevent large measurement errors or operation failure Unless otherwise specified perform voltage measurement with the terminal terminal plate and connector connected In some cases measurement is also performed with the terminal disconnected Perform continuity measurement resistance measurement after disconnecting the terminals on both ends Performing continuity measurement while the terminals are connected will cause a short circuit or damage to the tester If instructed to disconnect wires before performing continuity or voltage measurement be sure to do so then reconnect the wires before proceeding to the next step item Be sure to turn off the
132. e the trial operation setting from the outdoor main board or the remote controller to switch between cooling and heating to start operation 2 2 DO all the W MULTI outdoor units start and continue running Yes 2 4 for 5 minutes No 2 3 Check why operation does not continue and remedy the problem When the device stops immediately after startup 2 3 Check error history and use the code to find 2 1 troubleshooting information When the system does not start up IV 1 3 see section on engine start standby 2 4 Use a different mode cooling or heating to restart from 1 1 If no error is found keep under observation IV 95 P20 Refrigerant High Pressure Error Error detection method e When the high pressure sensor value gt 3 75 MPa during engine operation the engine stops and an error flag is set A Refrigerant Pressure Too High fault is assumed when this flag has stopped the engine 5 consecutive times in 1 hour e When revolution speed setting is more than minimum revolution speed and fan frequency is less than 50 of maximum frequency an error is not generated The engine stops momentarily Troubleshooting i en Cooling 124 SES 1 1 Operating in the cooling mode or heating mode mode Heating 3 1 2 2 4 IS the heat exchanger clogged by foreign matter or other Yes Remove Outdoor deb
133. eat exchanger unit is connected Re check the settings if it is not the relevant model Error detection method An error is determined in accordance with the criteria shown below when duplicated water heat exchanger unit parallel array addresses are detected e When using the RS 485 line to enable the use of the remote controller CZ lLORTGXA multiple water heat exchanger units with the same parallel address SW6 are connected within the same wiring array Duplicated addresses are determined when detected for the first time However duplicated addresses set at 0 are not detected Troubleshooting 1 4 1 Are two or more water heat exchanger units managed by the Yes 2 1 eg remote controller CZ 10RTGXA No 1 2 of units connected 4 2 Set 0 on the water heat exchanger unit s control board SW6 without any connections made check for TB5 4 or 5 on the terminal board 2 Duplicated parallel 21 Eradicate the duplicated parallel array addresses on the water heat exchanger unit s control array board SW6 within the RS 485 wiring array address check e For board and Electrical Wiring Diagram see Chapter 6 e Outdoor main board page VI 2 e Outdoor power board page VI 3 e Converter board VI 4 e Indoor control board for DC motor models page VI 5 e Outdoor Unit Electrical Wiring Diagram page VI 6 IV 79 L21 Gas Type Setting Failure Error detection method A Gas Type Setti
134. ected to the indoor control board No 4 5 Does E15 disappear several minutes after disconnecting said Yes 4 4 4 3 connector on the indoor control board When controlling with two remote controllers and the wireless remote controller is N 4 5 the main set the other remote controller as the main 9 k 4 4 Replace the removed option board or wireless remote controller operating unit wiring and all Ka Yes 4 6 4 5 Is the LED blinking on the indoor control board No 5 1 Nonvolatile memory EEPROM on the outdoor main unit is not inserted is incorrectly 4 6 inserted or is defective Correct or replace nonvolatile memory and program it in the remote controller properties setting mode 5 On the outdoor main board use setting No 10 to set the indoor unit count Then compare the Outdoor 5 1 Indoor unit connection status using No 9 indoor unit check and investigate the unaccounted main board indoor unit in detail e The designation is used in the table to indicate indoor boards for DC and AC motor models e There is no TEST pin on the indoor board for AC motor models e See 5 Reference Document for checking remote controller e For board and Electrical Wiring Diagram see Chapter 6 e Outdoor main board page VI 2 e Outdoor power board page VI 3 e Converter board VI 4 e Indoor control board for DC motor models page VI 5 e Outdoor Unit Electrical Wiring Diagram page VI 6 e See instructions packaged with servicing indoo
135. ed connectors Yes Repair severed wires Indoor outdoor terminals disconnected No 3 2 operation wiring f ES BE Yes Correct the short circuit 3 2 Is the indoor outdoor operation wiring short circuited N 3 3 Oo p SN Yes Correct the ground 3 3 Is the indoor outdoor operation wiring grounded No 3 4 Is the connection for the water heat exchanger unit Yes 3 5 3 4 electrical box s indoor outdoor operation wiring located between the terminal boards TB5 1 and 2 No Repair Is electrical voltage being applied to the indoor outdoor Yes 3 6 3 5 operation wiring If no the fuse F1 on the outdoor unit s main board has blown No 4 1 Replace the outdoor Yes is i Ss unit s main board Repair the wiring properly so that no electrical voltage is 3 6 applied Is the outdoor unit s main board CN046 already in Reverse the connectors use No on the outdoor unit s main board CN045 gt CN046 4 Yes Repair the malfunction Outdoor unit 4 1 Has the outdoor unit broken down breakdown No 5 1 5 Yes Set up noise Noise countermeasures 5 1 Is a source of noise located nearby the outdoor unit No Replace the outdoor units main board e See 5 Reference Document for details on the procedure for replacing the water heat exchanger unit s control board e For board and Electrical Wiring Diagram see Chapter 6 e Outdoor main board page VI 2 e Outdoor power board page VI 3 e Conver
136. ed operation until it does appear When the memory is cleared at this time all the contents of the nonvolatile memory are reset to the initial state Outdoor unit normal display Example uo D o JEE lIl Number of indoor units 20 units System address 01 4 Operation Unit Specifications Operation Three keys DOWN S006 UP S005 and SET S007 are basically used to perform all display and setting operations Pressing the HOME S004 for one second activates return to the normal display at any time this key is installed in a slightly separated position Unified operation sequence Category selection is performed with the UP S005 and DOWN S006 keys and then set with the SET S007 key Setting changes are performed with the UP S005 and DOWN S006 keys and confirmed with the SET S007 key The HOME S004 key is used to display the normal display the contents of any settings in progress will be canceled Simultaneously pushing the HOME key S004 and DOWN S006 key for 1 second displays the version Pressing the SET S007 key for one second while operation data is displayed No 0 cancels all forced settings The times appearing for flashing cycles operation key depressed period and other indications are approximate values and not necessarily the accurate times 5 Normal Display Level 0 The normal display appears after passing through the display subsequent to turni
137. ee Chapter 6 e Outdoor main board page VI 2 e Outdoor power board page VI 3 e Converter board VI 4 e Indoor control board for DC motor models page VI 5 e Outdoor Unit Electrical Wiring Diagram page VI 6 IV 43 E07 Outdoor Unit Transmission Failure to Indoor Unit Error detection method When a self transmitted signal cannot be self received is mismatched for 3 minutes an error is determined e Outdoor main board is defective e Outdoor main board terminal resistor switch setting is incorrect Troubleshooting 1 Is the indoor outdoor operation wiring connected to Yes 1 2 Outdoor main 1 1 multiple outdoor units Link wiring Link wiring not board available when water heat exchanger unit is connected No 1 3 4 2 the S010 terminal resistor switch on one outdoor main Yes 1 4 board set to ON and the remainder to OFF No Set only one unit to ON Is the outdoor main board S010 terminal resistor switch Yes Set to ON 1 3 a set to OFF No 1 4 Indoor outdoor operation wiring broken or short circuited Yes Repair wiring 1 4 i gt See 5 Reference Document No 1 5 1 5 Replace outdoor main board e For work procedure for replacing outdoor main board see 5 Reference Document e For board and Electrical Wiring Diagram see Chapter 6 e Outdoor main board page VI 2 e Outdoor power board page VI 3 e Con
138. eees V 51 10 Checks Prior to Automatic Addressing s ccccceeeeeeseeeeeeeeeeeeeeeeeeeeeeeeeees V 53 11 Indoor outdoor control wire connection confirmation ssssssssssssrrnnnnsnes V 54 Outdoor Unit Electrical Wiring Diagram sssssssssssssnnnnunnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn VI 1 NI SQutdOor main BOAT xcccccesctcceseeccte cetaceans eet VI 2 2 Outdoor power BOS eegegeege geesde D arani aaan nania VI 3 3 Converter E asia tetas cede tte vee etic EENE EEE EE ENEE VL A 4 Indoor control board for DC motor models ccccccccceeeeeeeeeeeeeeeeeeeeeeneeeeeees vi 5 5 Outdoor Unit Electrical Wiring Diagram cccccccesseeeeeeeeeeeeeeeeeeeeeeeeeeeeee VI 6 Cannot be detected when the water heat exchanger unit is connected 1 Symptoms that are not malfunctions The following symptoms are characteristic operating conditions of this system and do not indicate malfunctions The fan flaps on the indoor unit operate when the unit is stopped If the compressor outlet pressure exceeds 3 5 MPa during heating operation the flaps on the stopped unit move to horizontal and the fan rotates in the breeze When this happens it may indicate a clogged air filter Inspect and clean if necessary Refrigerant noise is occasionally heard from the stopped indoor unit During cooling operation of the outdoor unit if the indoor unit is stopped for a period of time that equals the total oil recovery time period whil
139. ege teense IV 1 4 Troubleshooting WE IV 2 A01 Engine Oil E IV 2 AO Engine Oll EE IV 4 AOS Engine High Revol tior Ereegnes IV 5 A04 Engine Low Revolution Error E IV 6 AOS Ignition Source ETOT cited csvennscctnzeennnesoednestunewesiesseuatcatedcoarsdaussnhccmtestatateasedeoonseesamumiaate IV AOG Engine Start FeAl sass ser caneansuctet cee cedeaa Cece adda sates sedated veda ectactcecaete da eneetenngueac IV 9 FOP FuelGas Valve Error EE IV 11 e UE IV 12 A10 Exhaust Gas Temperature eegene ENEE IV 13 A14 Engine Oil EE IV 14 A15 Starter Power Source Output Short Circuit 0 000 0ccceeseeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeees IV 15 AlS Starter BEE IV 16 A17 CT Error Starter Current Detection Failure s sssssrirrrrerrsrrrnnunnnrrnnnnnnenenrereeneeeeeo IV 17 A19 Low Coolant Temperature IV 18 A20 High Coolant Temperature ansni geet ee Eed IV 19 A21 Coolant Level Erro sasini aaaea REEE EDE IV 21 A22 Coolant Pump Error assener ia E Ea i IV 23 A23 Crankshaft Angle Sensor Error esssssseessesosssssssssnoorrrrnnnnrrrrnnnnnnnnnnnnnnnnnnesneceteesesee IV 24 A24 Camshaft Angle Sensor EOT ences acca acta teck trainee natn Rai ene iaiia doiena iua IV 24 A25 Clutch Error sii csuccsonccastapesntnsubtahennnprantenegudranstnnedtagansedacanseusstntuasusvnieinaecnupatinenennectantens IV 25 A20 Famgout Error eene IV 26 A27 Catalyst Temperature Error for only models with catalyst option eee
140. egular oil the temperature will clearly rise approximately 5 to 10 No return circuit minutes after the engine has been started up under normal circumstances 4 Is the dry coil blocked Yes 5 1 Dry core check 4 1 Operate the heater and check the temperature differences at the dry core s inlet and outlet No Replace 2 Is the suction strainer blocked Yes 6 1 Suction strainer e e g check 5 1 It is especially important to check this on renewal dedicated units No Replace 6 Compressor oil 6 1 Replenish 4 L of compressor oil for the entire system and keep an eye on the situation replenishment Note The solenoid valve coils and the vicinity can become very hot so check operations should be performed with care IV 66 L02 Inconsistencise in Indoor Outdoor Unit Models non GHP equipment connected Error detection method e An error is detected when indoor units other than GHP models are connected e An error is detected when package type L series indoor units and building multi outdoor units are connected Troubleshooting 1 Indoor unit 1 1 Check the following and remove or replace all non GHP models e Indoor unit model e Indoor control board e See instructions packaged with servicing indoor board for procedure on replacing indoor control board IV 67 L03 Multiple Main Units Set for Group Control Cannot be detected when the water heat exchanger unit is connected
141. elligent controller system controller multi controller Are any broken indoor and outdoor operating wires connected Yes Repair wiring 1 5 e R e to central control equipment See 5 Reference Document No 2 1 2 on S Yes 2 2 Remote 2 1 Is this indoor unit group controlled No 1341 controller 2 2 Any broken wires for remote controller group link wiring 1 Yes Repair wiring white and 2 black No 3 1 3 3 1 san option board CN060 or wireless remote controller Yes 3 2 Indoor CN041 connected to the indoor control board No 3 4 control board Does E03 disappear several minutes after disconnecting said Yes 3 3 3 2 connector on the indoor control board When controlling with two remote controllers and the wireless remote controller is N 3 4 the main set the other remote controller as the main 9 3 3 Replace the removed option board or wireless remote controller operating unit wiring and all SE E BEE F Yes Repair wiring 3 4 Short circuit misrouting or broken wires in indoor unit remote i controller wiring No Replace indoor control board e The designation is used in the table to indicate indoor boards for DC and AC motor models e There is no TEST pin on the indoor board for AC motor models e See 5 Reference Document for checking remote controller e For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2
142. en the forced water circuit is not set Operating method Operation details Releasing method DiuiniP None TEST WARNING LED light Coolant pump operating The coolant electric 3 way valve repeats a cycle of 50 steps for 3 minutes and then 1950 steps for 1 minute and 16 seconds The hot water electric 3 way valve repeats a cycle of 1950 steps for 30 seconds 50 steps for 3 minutes and 1950 steps for 46 seconds Forced setting in progress display TEST WARNING LED light is shown during this time Press the SET S007 key for one second in forced water circuit mode The forced setting in progress display will be canceled at this time returning to forced setting select operation TEST WARNING LED off 7 Forced bypass valve closing setting Level 2 Used for pump down etc Display Rejection conditions Press the SET key for one second without forced bypass valve closing being set The Operating method Operation details Release method UCUioibt Valve is open TEST WARNING LED will be illuminated Fully close the bypass valve Perform the necessary operations on the liquid valve the indoor and indoor units expansion valves and the outdoor unit s fan pump down The forced setting in progress message will be displayed during this the TEST WARNING LED will be illuminated Press the SET key for one second while the forced bypass valve is
143. ened if other outdoor units are operated this way refrigerant will flow to the outdoor units with total off set causing malfunction Therefore be sure to close the valves of refrigerant gas tube refrigerant liquid tube and balance tube of the outdoor units set to total off If all outdoor units of the system are set to total off then there is no need to close the shutoff valves Use the following procedure to turn off circuit breaker of one or more outdoor units and perform maintenance 1 For one unit set the STOP switch the STOP side C PiBiubE appears 2 After approximately 3 minutes F jett appears 2 Then turn off the circuit breaker of the outdoor unit 3 Close the valves of refrigerant gas tube refrigerant liquid tube and balance tube 4 After the work is finished open the closed valves of refrigerant gas tube refrigerant liquid tube and balance tube 5 Set the STOP switch to the NORM side and then turn on the circuit breaker 6 When all outdoor units are in complete combustion state and until vane comes out about the time when all outdoor units simultaneously continue operation for one minute or more 7 For the next targeted outdoor unit perform the procedure starting from step 1 D S002 Fuel gas solenoid forced off switch e This switch is provided for the forced shutdown of the gas solenoid valve e Moving this switch to the OFF
144. eplace magnet Starter 4 1 Is EEN GE magnet switches A1 and A2 when the switch power magnet switch is turned on nada source magnet 4 2 S AC200C applied between power board connectors 3P yellow Yes 1 3 switch 52S CN028 No 1 and No 3 when the magnet switch is turned on No 1 4 1 3 When wiring connection contact is poor between the outdoor unit s power board connector 3P red CN028 and magnet switches A1 A2 Repair wiring Replace the 4 4 1S AC200C being applied between the outdoor unit s power board Yes outdoor unit s connector 3P white CNO02 No 1 and No 2 power board No 1 5 Yes 1 6 1 5 Is AC200C being applied between the filter board connector 3P white CN003 No 1 and No 2 No Replace the filter board 1 6 When wiring connection contact is poor between the outdoor unit s power board connector 3P white CNO02 and filter board 3P white CNO03 No 1 and No 3 Repair wiring 2 i Replace the Is DC11V or more applied between the outdoor unit s main board Ignition coils Yes outdoor unit s 2 1 connector 2P black CNOO6 No 1 and No 2 when the magnet main board switch is turned on No 2 2 Is DC11V or more applied between the outdoor unit s main board Yes 12 3 connector 2P black CNO06 No 1 and No 2 when the magnet 2 2 EI f we switch is turn on with the outdoor unit s main board connectors 6P N 2 4 white CN010 and 6
145. eplace the valve coil 7 Are indoor unit s coil sensors E1 E2 and E3 disconnected Yes Repair Indoor unit s 7 1 from their measurement points Check this by displaying the coil sensor indoor coil temperature on the outdoor unit No 11 1 8 i Yes Maintain the Cold hot 8 1 Is a at i water brine flow volume being rated flow volume maintained water check No 8 2 g e Yes 9 1 8 2 _ Is the cold hot water brine pump operating No Repair IV 96 9 Check the motor operated valve on the water heat exchanger Yes 10 1 Water heat 9 1 unit Does the valve open Check the temperature of the exchanger water heat exchanger unit s coil in the heating mode No 9 2 unit S motor Check the water heat exchanger unit s control board Is there Yes 9 3 operated valve cheek any voltage between No 5 and No 1 4 and between Replace the 9 2 No 10 and No 6 9 of the water heat exchanger unit s water heat control board 10P 1 white and 10P 2 black when the power No exchanger unit s is switched on control board Replace the Check the motor operated valve Does a resistance of Yes valve 9 3 approximately 46 Q exist between No 5 and 1 4 of the motor operated valve connector 6P 1 white No Replace the valve coil 10 Are coil sensors TH1 to 3 on the water heat exchanger unit Yes Repair Water heat 8 e disconnected from the measure
146. erted is incorrectly 3 6 inserted or is defective Correct or replace nonvolatile memory and program it in the remote controller properties setting mode oo BEE p Yes Repair wiring Short circuit or misrouting in indoor unit remote controller 3 7 wiring No Replace indoor control board IV 30 e Outdoor main board page VI 2 e Outdoor power board page VI 3 e Converter board VI 4 e Indoor control board for DC motor models page VI 5 e Outdoor Unit Electrical Wiring Diagram page VI 6 e See instructions packaged with servicing indoor board for procedure on replacing indoor non volatile memory EEPROM and replacing indoor control board 2 When the water heat exchanger unit is connected The designation is used in the table to indicate indoor boards for DC and AC motor models There is no TEST pin on the indoor board for AC motor models See 5 Reference Document for checking remote controller For board and Electrical Wiring Diagram see Chapter 6 1 4 1 e electricity being supplied to the water heat exchange Yes 2 1 Unit power unit No Switch on the power 2 Yes 2 2 Remote 2 1 Has an address been set in the remote controller No Set the address controller parallel array 55 e the address set in the remote controller a serial Yes 2 3 address number No Seta serial number 2 3 DO the addr
147. es 1 2 Ignition system 1 1 Are sparks emitted properly No 1 3 error OK 2 1 1 2 Proper ignition timing ee NG Adjust timing Any poor connection contact crimping and broken wires Yes Repair wiring 1 3 Vin wiring between the outdoor main board connector 6P white CNO10 6P black CNO11 and each IG coil igniter No 1 4 Yes 1 5 1 4 Ignition plug working properly SSES No Replace ignition plug Try replacing the IG coil igniter If fault persists after replacement replace the outdoor 1 5 main board 2 OK 3 1 Engine unit 2 1 Measure compression See A06 5 1 NG 22 error 2 2 Wash valve and adjust valve clearance If still NG replace engine head 3 3 4 Check operation of fuel gas regulating valve and throttle Yes 3 2 Fuel regulating step motor Operating properly No Replace system error Yes 3 3 3 2 Inspect zero governor Operating properly No Restore 3 3 Air intake occurring Check rubber plug on intake manifold etc e For work procedure for replacing outdoor main board see 5 Reference Document e For board and Electrical Wiring Diagram see Chapter 6 e Outdoor main board page VI 2 e Outdoor power board page VI 3 e Converter board VI 4 e Indoor control board for DC motor models page VI 5 e Outdoor Unit Electrical Wiring Diagram page VI 6 e 12 1 2 See Chapter 5 for timing adjustment IV 26
148. esses on the remote controller and on the Yes 2 4 water heat exchange unit match up No Match up t he addresses Yes 2 5 2 4 Does the number of addresses on the remote controller match up with the number of water heat exchanger units we Match up the number of connected units Yes 2 6 2 5 Is the parallel array address on the water heat exchanger unit set at anything other than 0 No Set any parallel array address other than 0 Yes 3 1 2 6 Is the parallel array address on the water heat exchanger unit set at 1 5 N Set the parallel array address at 1 5 ee Are the terminating resistance switches on the remote Yes 4 1 Terminating 3 4 controller and on water heat exchanger unit s control Set the terminating resistance board located at both ends of the wire linking the remote No resistance for both ends controller with the water heat exchanger unit set at ON of the link wire to ON 4 4 1 8 the remote controller s wire severed connector or Yes Repair the severed wire Remote terminal disconnected No 4 2 controller y Renar the chercieuit P F es Repair the short circui wires wires 4 2 Is the remote controller s wire short circuited linking between No 4 3 the remote Yes Repair the ground controller to 4 3 ls the remote controller s wire grounded the water heat No 4 4 exchanger unit Yes Switch the wires around 4 4 Is the remote controller s wire polarity reversed No 4 5 4 5 Are the
149. etected for 3 continuous seconds Troubleshooting 1 Yes 1 3 Crank angle 1 1 Does the starter operate No 14 2 sensor trouble 4 2 Check starter S terminal for short circuit or ground fault OK Replace starter and starter B terminal for broken wire NG Repair wiring 4 3 Poor connection or broken wire in crank angle sensor Yes Repair wiring wiring No 1 4 Replace outdoor main board 1 4 If NG replace sensor 2 2 4 Poor connection or broken wire in cam angle sensor Yes Repair wiring Cam angle wiring No 2 2 sensor trouble 2 2 Replace outdoor main board If NG replace sensor e For work procedure for replacing outdoor main board see 5 Reference Document e For board and Electrical Wiring Diagram see Chapter 6 e Outdoor main board page VI 2 e Outdoor power board page VI 3 e Converter board VI 4 e Indoor control board for DC motor models page VI 5 e Outdoor Unit Electrical Wiring Diagram page VI 6 Reference Electrical Wiring Diagram B F 1 2 IV 24 A25 Clutch Error Error detection method A Clutch Error fault is detected when clutch coil temperature or clutch 2 coil temperature is 110 C or more for up to 1 minute Error is detected with one occurrence Troubleshooting The compressor uses a twin clutch specification Inspect both clutch and clutch 2 1 Rotate the compressor pulley by hand while stopped to
150. evel 2 Rejection conditions Setting start operation method Setting change operation method c1 DLE ri Example mr rr D Setting cancel operation method Setting range Not accepted during indoor operation Press the SET S007 key for one second After entering the setting start operation mode operating the UP S005 and DOWN S006 keys makes it possible to change the setting values TEST WARNING LED light When pressing the UP S005 key When pressing the DOWN S006 key Setting confirm operation method After entering the setting start operation or setting change operation completed press the SET S007 key for one second TEST WARNING LED off Press the HOME S004 key for one second before confirming setting 00 to 03 Not set LA NY ra Oo No generator i mm x a ni pupa oo rm ca Li D 8 Model type 1 setting Level 2 Rejection conditions Setting start operation method Setting change operation method Dit uj t Example U DI nh Me Setting confirm operation method Setting cancel operation method Not accepted during indoor operation Press the SET S007 key for one second After entering the setting start operation mode operating the UP S005 and DOWN S006 keys makes it possible to change the setting values TES
151. extremely Yes leaks and repair system low when it is lower in pressure than saturated pressure 8 2 1 refrigerant at ambient temperature Assessed as out of gas when extremely low No 13 1 Out of refrigerant gas 3 3 1 Turn off the outdoor unit be sure to do this before work E 3 2 Use the instructions in P26 Clutch Connection Fault to adjust Yes 4 1 operation and wiring of clutch 1 and 2 Any problems No 7 1 4 F Inspect 4 1 Replace the compressor and check the refrigerant oil in the aed a refrigerant replaced compressor for contamination et Contaminated 6 1 5 Replace 5 1 After replacing the compressor perform a trial operation and check the equipment Check compressor completed if OK 1 6 Replace 6 1 Perform a flashing cleaning to clean the inside of the refrigerant tubes compressor 2 7 Adjust outdoor solenoid valves Use trial operation mode Inspect to check that the solenoid valves operate normally in Yes Replace outdoor main outdoor each operating mode cooling heating and measure board solenoid 7 1 tube temperature around solenoid valves to assess For valves information on solenoid valve operation in each operating mode see the sections Control functions Operating control in the Outdoor unit manual No vs Does the solenoid valve operate normally Adjust the power board 7 2 Does the power board CN013 output the solenoid power Yes 7 3 supply voltage AC 200V 7 3 Any p
152. f the power source is not reset it will be impossible for the exhaust heat collection valve to be positioned which will hinder subsequent operations IV 18 A20 High Coolant Temperature Error detection method When the coolant temperature 100 C continuously for 2 seconds or when the coolant temperature is 295 C for 3 consecutive seconds during engine operations complete combustion the engine will be momentarily shut down and an error flag set The reason for the engine shutting down is because the error flag was set five times consecutively Troubleshooting i Yes 2 1 Pump 1 1 Is the coolant pump rotating during operations rotation No See A22 Is the th ibcriceaciantvaneatine ngne Coolant 9 1 IS the three way electric coolant valve at the engine outle Ge gt Seni operating normally epair or replace the SZ i No three way valve 2 2 Are there any signs of coolant discharge from the reserve Yes 2 4 tank No 2 3 Yes Purge the air 2 3 Is there air in the coolant No 3 1 v s Purge the air after 2 4 Is coolant leaking or seeping etc from the coolant hose repairs No Purge the air 3 Disconnect relay connector 2P 12 green on the coolant OK 3 2 Sensor temperature sensor and then measure the resistance check 3 1 Measure the surface temperature and compare the results Replace the coolant u j NG See 5 Reference Document for details on thermi
153. factured by Panasonic Maintain a distance of 300 mm or more between other power lines In the event of the cables needing to be laid within the above mentioned distances make sure one of them is enclosed in a steel power line conduit When shielded cables are in use make sure one side is grounded Do not use the same cable for signal cables and power cables Fig 1 Do not use multi core cables for two or more signal cables Fig 2 Wiring e Bus systems must be used as a basic principle for multiple systems Fig 3 Only a maximum of 16 branches can be used Fig 3 The length of the cable between branches must be 2 m or more Fig 3 If there are more than 17 branches reduce the number of branch locations Fig 4 Putting 2 refrigerant systems to wiring system etc Not include in branch within m Fig 5 Branches can only contain a maximum of 3 cables 4 or more cables are prohibited Fig 6 A branch after the branching of a wire is prohibited Fig 7 Looped cables are prohibited Fig 8 e Consecutive suspension systems must be used as a basic principle for single systems Fig 9 e Terminal resistance To be set at one location when one outdoor unit is in use and at two locations when multiple units are in use AW oe A Ch LN V 58 3 Remote control wiring e Wiring e Between the remote controller and the indoor unit Non polar biaxial wires e Between indoor units Non polar biaxial wires e Wire types
154. follows e Outdoor Unit Data Gg Data name Unit eae Remarks None Date of malfunction YYMMDD Ue Yio t April 01 2012 None Time of malfunction HHMMSS OBL 84 4 08 19 44 1 Engine operation time Hr i Hel apyS 12 345 hours 2 Engine operation count Times d 2 a 4 4 2 345 times 3 Starter operation time Seconds Zi 2 4 4 234 seconds 4 Starter operation count Times 4 EIKIR 1 345 times 5 6 7 8 Clutch 2 time BL opinp 2 000 hours 9 Clutch 2 count S on 200 times A b CG d E F G H i J K L n Data Display cod Data name Unit examples Remarks o D q 10 Engine revolution setting min ulen 2 200 min 11 Engine revolutions min 1 aan 12 200 min 12 Compressor inlet pressure Mpa tie B to 10 10 MPa 13 Compressor outlet pressure MPa dal DI 1 00 MPa 14 Compressor inlet temperature C 4 1315 0 135 0 C 15 Compressor outlet temperature C US dalal 110 0 C 16 eae heat exchange inlet C Jg ue 45 0 C 17 Outdoor unit heat exchange 2 inlet temperature 3WAY only 18 19 20 Refrigerant temperature C eja bi 65 0 C 21 Outside air temperature C 2 4 OD 28 0
155. for SW4 and SW5 between 35 C and a g 55 C eating No Revise settings 2 Yes 2 2 Set temperature 2 1 Is it used as a water chiller No 13 1 check during cooling water Mes 23 2 2 _ Is SW1 2 set at OFF No Proceed to 2 3 after changing to OFF Yes 2 4 2 3 Is SW1 3 set at OFF No Proceed to 2 4 after changing to OFF Are the settings for SW2 and SW3 between 5 C and 15 C Yes 4 1 2 4 If the answer is No for either 2 2 or 2 3 diagnostics will end even if 2 4 is Yes No Revise settings 3 Yes 2 2 Set temperature 3 1 le SW1 2 set at ON Proceed to 2 2 after check during No changing to ON cooling brine d Are the settings for SW1 SW2 and SW3 between 15 C Yes 4 2 3 2 and 15 C If the answer is No for 3 1 diagnostics will end even if 3 2 is Yes No Revise settings S 4 1 ls SW8 1 set at OFF E iiei S 1 seta b Anti icing NG Change to OFF control switch OK 5 1 setting check 4 9 Us SW8 1 set at ON NG Change to ON 5 Momentarily reverse switch to the opposite sides all dip Miscellaneous 5 4 switches SW1 2 SW1 3 SW1 8 and then try returning on Enedindneetes them to their previous positions Has the problem been solved No Move the position of the rotary switches SW2 to 5 around Yes End diagnostics 5 2 at random and then try returning them to within the set Replace the control range Has the pro
156. gine rotational speed to 800 min 4 Press the HOME key S004 for one second or more Menu item number naitt right figure will be displayed O 5 Press the UP S005 or DOWN S006 key displaying the menu item numbers Select menu item naff in the figure below The display 5Et r Fr figure below will appear RN LL DOWN 008 SET 5007 O m Je O O 5004 HOME O 5004 HOME E 6 Press the SET key S007 The LEVEL LED D053 will light and the status with the engine rotating at the forced set speed will be displayed at one second intervals as shown below Display Item if 4 amp amp 10 1400 Forced engine rotational speed example 1400 min it t 4 g D 11 1400 Engine rotational speed example 1400 min 2 amp 5 5 12 0 56 Compressor inlet pressure Example 0 56MPa ia 5 6 13 0 56 Compressor outlet pressure Example 0 56MPa 15 85 6 15 85 0 Compressor outlet temperature Example 85 0 C 7 In this state press the UP S005 or DOWN S006 key to set the engine rotational speed to 800 min Press the SET key S007 for one second or more to confirm the set engine rotational speed The TEST WARNING LED D052 will light Caution The forced engine rpm can be set within the r
157. gories After entering the setting start operation or setting change operation completed press the SET S007 key for one second This cancels the forced setting in progress display returning to indoor unit setting item select operation TEST WARNING LED off Pushing the HOME S004 key for 1 second before setting confirm Setting change operation method Setting confirm operation method Setting cancel operation method 4 Outdoor unit setting list operation returns operation to normal Setting details will not be cancelled when pushing the HOME S004 key for more than second during indoor unit setting item select operation Data code Data Remarks 1 Indoor unit setting 1 0 1 Gas tube valve present absent indoor unit 1 2 Indoor unit setting 2 0 Lowest priority to 4 Highest priority 3 Indoor unit setting 3 0 1 Normal Drain pump intermittent control 4 Indoor unit setting 4 0 1 Normal Drain pump continuous control 5 Indoor unit setting 5 0 1 Normal No cool air prevention control with heater thermostat off 6 Indoor unit setting 6 0 1 Normal No air speed control with heater thermostat off T 7 Indoor unit setting 7 0 1 Normal No heater high pressure avoidance control J 8 Indoor unit setting 8 0 1 Normal Heater stop indoor frost prevention control 9 Indoor unit setting 9 0 1 Normal No refrigerant discharge control with heater thermostat off A Indoor unit setting A 0 1 Normal Air speed lower limit
158. gs TEST WARNING LED D052 flashes Forced setting display red Upon forced settings during normal display the TEST WARNING LED D052 lights During display of forced settings on the menu item display the TEST WARNING LED D052 lights This may be used to search for forced setting items during setting Level LED display green The Level LED D053 displays the setting menu stage level and other information Level 0 is unlit Level 1 is light Level 2 is flashing Displays immediately after power is turned ON When the power supply is turned on the following displays appear e 7 segment LED TEST WARNING LED D052 Level LED D053 light up 5 seconds e Model name display 1 second e Version display 1 second Example 5 5 5 5 8 5 All segments light Example HI Model name display Example 4 4 Version display When the power supply is turned on while pressing the SET S007 key the contents of the nonvolatile memory can be cleared Memory clear procedure 1 Turn on the power supply while pressing the SET S007 key After 1 second or more E u r will be displayed 2 Press the SET S007 key again Activating the nonvolatile memory erase function at this time will display TE Ira E 3 Check for power on display If the End display fails to appear repeat the aforemention
159. h 2 CL clutch IV 103 P30 Group Control s Sub Unit Error warning displayed only on system controller Error detection method When an error occurs on a group control sub unit for all abnormalities the system controller displays P30 Troubleshooting 1 1 1 Confirm error details using one of the following methods Check warning display on wired remote controller Check warning history in system controller servicing check mode 1 2 Troubleshoot the warning found in 1 1 e For board and Electrical Wiring Diagram see Chapter 6 e Outdoor main board page VI 2 e Outdoor power board page VI 3 e Converter board VI 4 e Indoor control board for DC motor models page VI 5 e Outdoor Unit Electrical Wiring Diagram page VI 6 e 1 1 System controller service check mode warning history Indoor unit outdoor unit warning history monitoring mode also clears warning history Press the icon and button continuously for 4 seconds or more Service Check lights and the item code Di lights When the group number is selected when 1 is flashing when any warning history exists the newest warning history is displayed alternately with the unit number Temperature settings are not available I i Unit No a i i i 1 1 Inspection I er ore i i a Hi g at Displayed alternately E H System Indoor h Bie ttn a t s Unit No Display Alarm Display To check older w
160. hanger unit is E26 Inconsistency in number of outdoor units only connected detected with W Multi L21 Gas type setting failure E31 Communication failure between units V 20 Error Code Error Alarm Contents System P Indoor outdoor protective device operations P01 Indoor fan error indoor fan rpm error P03 High compressor discharge temperature P04 Refrigerant high pressure switch operations POD Power supply error PO9Y Indoor unit ceiling panel connector connection defect P10 Indoor unit float switch operations P11 Water heat exchanger unit anti icing sensor error when the water heat exchanger unit is connected P12 Indoor DC fan error P13 Refrigerant circuit error only detected with W Multi and 3WAY P14 O sensor operations P15 Total refrigerant gas depletion P18 Bypass valve failure P19 4 way valve lock error not detected with 3WAY P20 Refrigerant high pressure error P22 Outdoor unit fan error P23 Water heat exchanger unit interlock error when the water heat exchanger unit is connected P26 Clutch connection error P31 Group control error Others H07 Compressor oil depletion error only detected with W Multi HO08 Oil level sensor error only detected with W Multi P30 Group sub unit error error detected with the system controller oiL Oil change time level alarm GE_ Backup operating display without power generation when an error o
161. he fuel gas Yes SET dee adjustment valve Are any wires severed No 2 13 Are the throttle valve or fuel gas adjustment valves locked in place Yes 3 1 2 13 Is it possible to easily move each valve by hand with the stepping motor removed No Replace mixer 3 There is a chance that the engine load could be unsuitable Check the following and make Engine load repairs if problems are found check e Is the air filter on the indoor unit blocked Especially in the heater mode e Has a short circuit occurred with the air on the indoor unit Especially in the heater mode 3 4 with the remote controller s thermostat e Has a short circuit occurred with the air on the outdoor unit or is the air heat exchanger on the outdoor unit closed etc When in the cooler mode e Is the refrigerant route blocked strainer dry core etc is the valve closed forgotten to open closed valves etc or is the motor operated valve locked in place e Has the refrigerant been over filled e For work procedure for replacing outdoor main board see 5 Reference Document e For board and Electrical Wiring Diagram see Chapter 6 e Outdoor main board page VI 2 e Outdoor power board page VI 3 e Converter board VI 4 Indoor control board for DC motor models page VI 5 e Outdoor Unit Electrical Wiring Diagram page VI 6 IV 12 A10 Exhaust Gas Temperature High Error detection method During engine operation complete combustion whe
162. he instructions supplied with the service water heat exchanger control board IV 88 P12 Indoor DC Fan Error DC fan motor model only Error detection method e Open circuits and short circuits in the indoor control board connector CN333 red and CN334 red on the motor side are detected and assessed as faults Troubleshooting 1 4 1 Any poor connections or broken wires in indoor control board Yes Repair Fan motor connector CN333 red and CN334 red No 1 2 Disconnect indoor control board connectors CN333 red Yes 1 3 1 2 and CN334 red Turn the fan by hand to check if it turns smoothly No Replace the fan motor Check if the resistance between No 1 2 2 3 and 3 1 on the motor side of indoor control board connectors CN333 red 1 3 is correct 28 90 model about 70 100 Q 112 160 model Yes 1 4 about 35 50 Q Any ground faults between the cabinet and No Replace the fan motor No 1 2 and 3210 MQ or more Check if the resistance between No 1 4 on the motor side of Yes 1 5 1 4 indoor control board connectors CN334 red is correct 5k to 20kO No Replace the fan motor Connect CN333 red and CN334 red turn on the power and use a tester to measure the voltages between indoor control Yes 1 6 board connector CN334 red No 2 3 No 2 4 and No 2 5 Ve Is the pin voltage between 0 and 5 V when the fan is slowly turned No Replace the fan motor
163. he next one in the order shown The set item returns to Item 1 after Item 5 As each item is displayed operating the UP S005 and DOWN S006 keys makes it possible to change the value settings When clock is set the clock stops and the number of seconds is set to 0 When completing the clock setting push the HOME S004 key for 1 second This clock may be set for up to year 2099 with adjustments for leap years it may be set for beyond that year as well When the power supply is turned on detecting a halt in RTC oscillation causes the clock to be set at the initial value February 1 2003 12 00 00 V 42 8 lgnition Timing Check and Adjustment Preparation for work Turn off remote controllers for all indoor units Confirm outdoor units have stopped Distributor mode setting Set the distributor mode by selecting E SF r fromthe naiit test run forced setting display 1 Press the HOME key S004 for one second or more Menu item number na Hi displayed right figure will be O 2 Press the UP S005 or DOWN S006 key displaying the menu item numbers Select menu item DI Iw nou inthe figure below The display EERNE figure below will appear DOWN SET 006 5007 O 5004 HOME Q 3 Press the SET key S007
164. heck turned on No Turn power ON the power supply and Is the S010 terminal resistor switch on the outdoor main Yes 3 3 wirin board correctly set Regardless of system addresses 1 g 3 2 Se Zen outdoor unit in the same link wiring must be set to Short N Enter the dat 4 terminal resistor on Q TEE CES 3 3 Replace outdoor main board IV 56 E31 Communication Failure between Units Error detection method e When communications between the boards inside the outdoor unit is not possible for 30 seconds Troubleshooting 1 4 1 Turn the power to the outdoor unit off and on Does E31 Yes 4 3 Board check reoccur after one minute No 1 2 4 2 Operate the engine for about 5 minutes with a trial run etc Yes 2 1 Does E31 reoccur No 3 1 S 2 1 Is the outd it ded us et 1 Is the outdoor unit grounded Ground No Connect to ground check 2 9 e there any conduction between power control box and Yes 3 1 ground wire connected to outdoor unit Check with a tester No 4 2 2 Check the error history Has E31 occurred frequently within a Yes 4 3 Error history 3 1 Short period of time check H i No 4 1 4 4 1 This could be the effects of random noise Leave the situation as it is and keep it under Recovery observation 4 2 Polish the contacts with a wire brush etc to attain conduction between the electrical box and ground wire connected
165. hylene sheath control cable Vinyl insulated vinyl JIS C 3401 sheath control cable ECO120 VCT Heat resistant polyethylene insulated heat resistant polyethylene JIS4501 sheath cabtire round cable Vinyl insulated vinyl cabtire cable JIS C 3312 j Heat resistant polyethylene insulated heat resistant polyethylene EMECIE VEI sheath cabtire round cord Vinyl cabtire round cord JS C 2308 EM EEF VVF 600V heat resistant polyethylene flat cable 600V vinyl insulated vinyl JIS C 3342 sheath flat cable Shielded polyethylene insulated heat resistant polyethylene sheath EM CPEES CPEVS communication cable for city use Shielded polyethylene insulated vinyl sheath cable for city use Shielded polyethylene insulated heat resistant polyethylene sheath EM K CPEE KPEVS instrumentation cable for city use Shielded polyethylene insulated JIS C 5402 vinyl sheath cable for city use Heat resistant polyethylene cord for use with covered microphones EM MEES MVVS Vinyl cord for use with covered microphones JCS4271 Note Either block out the light or use UV resistant cables if wiring is affected by ultraviolet rays sunlight lighting etc e Cable thickness 0 5mm 2mm e Insulated length Maximum 1km for the entire cable length e Precautions 1 Do not lay signal cables next to power line in order to prevent miss operations 2 Maintain a distance of 50 mm or more between the power lines of other air conditioning units manu
166. iable F_rpm SS Dia 10 2 56 57 58 Compressor oil level W Multi lp J2 Level 2 59 60 Engine ignition time Degree B G iG 10 degrees 61 62 63 64 65 66 67 68 69 70 Thermostat on unit count Unit Yo eit 20 units 71 Average thermostat on intake temperature C H II 19 4 C 72 Average thermostat on discharge C Ja isla 15 0 c temperature 73 Average thermostat on E1 temperature S HEI S18 5 0 C 74 75 Average thermostat on E3 temperature C WS Wo 7 0 C e Indoor Unit Data ee Data name Unit Kee Remarks 1 No 1 indoor unit solenoid valve opening Step DUDU 180 steps 2 No 1 indoor unit intake temperature C al dallal 29 0 C 3 Not indoor unit discharge temperature C ot Sia 15 0 C 4 Not indoor unit E1 temperature C aH Ele 10 0 C 5 6 No 1 indoor unit E3 temperature C a JELE 10 0 C 1 No 2 indoor unit solenoid valve opening Step D if 180 steps 1 1 6 No 24 indoor unit E3 temperature C PMB ot 10 0 C The data for the indoor units connected will be displayed when the latest error history data is being displayed after initial communication has been completed V 18 e Outdoor Unit Data 5 Seconds Earlier A 1 to A 1 Ge Data name Unit eeng Remarks A 1 Engine revolution setting min A ioanp
167. icate Indoor Unit Priority Setting ccscicsae ekergeeg eueg eebete eetaiadessicieaienks IV 70 LO7 Group Control Wire Present for Individual Control Indoor Unit C A IV 71 LO8 Indoor E Le EE Me LOS indoor Unit Capacity e e e EE IV 73 LID Outdoor Unit Capacity Eegeregie Eege Ehra IV 74 L13 Indoor Unit Model Type Setting Failure c ccccceseeeeeeseecceeeeeeeeeeeeeeeeneeeenneees IV 75 L15 Detective Pairing of Indoor UNItS eeiuusggeregeeeetet ee de SEENEN IV 76 L16 Faulty Water Heat Exchanger Unit Settings ii scciccisitect cocerersasadacadedecauaademanentenausevans IV 77 L19 Duplicated Water Heat Exchanger Unit Parallel Array Adresses IV 79 L21 Gas Type Setting Falgter eneen ss IV 80 P01 Indoor Fan Error Indoor Unit Fan rpm ETC eeeeegeg etserergeteegeege kees ceregueaCn IV 81 P03 High Compressor Discharge Temperature cccecceesseeecneneeeeeeeeseeeeneneeeeees IV 82 P04 Refrigerant High Pressure Switch Operation eesseeeeeeeeeeeseerierrreesssrrrrrrrnnsssreeena IV 84 POS P wer Source ERO ergeet iiaia iaa aa iA E E EESE IV 85 P0O9 Indoor Unit Ceiling Panel Connector Connection Failure C A IV 86 P10 Indoor Unit Float Switch OP eraniorit EE IV 87 Cannot be detected when the water heat exchanger unit is connected P11 Water Heat Exchanger Unit Anti icing Sensor Error for only water heat exchanger Unit see cscccceeeeeeeeeeeeeeenereneeeeeteces IV 88 P12 Indoo
168. ill be displayed on the 7 segment LED between the start and end of cranking Cranking can be performed as many times as required with the DOWN and UP keys The forced setting in progress message will be displayed during this the TEST WARNING LED will be illuminated Only cranking will be performed in this mode Engine operations will not be performed Press the SET key for one second while the forced cranking mode is set The forced setting in progress message will be cleared the TEST WARNING LED will be extinguished and the display will return to the forced setting selection operation The HOME key cannot be used in the forced cranking mode The display will also not return to the normal display if no key operations are performed for 10 minutes Clear the forced setting and then press the HOME key to return to the normal display lt Outline of Usage Methods gt Press the SET key for one second when 4 t r on is displayed i will be displayed and the TEST WARNING LED red will be illuminated Engine operations will be halted automatically if they are in progress Check to make sure the engine has stopped and then press either the DOWN or UP keys However the keys cannot be pressed while the 7 segment LED is blinking Cranking will start 3 seconds later and last for 5 seconds The engine s maximum revolution count will be displayed during cranking Disp
169. ing indoor board for procedure on replacing indoor control board IV 87 P11 Water Heat Exchanger Unit Anti icing Sensor Error for only water heat exchanger unit Error detection method An error is detected as follows e When anti freeze temperature is detected and recovery temperature is not reached within 3 minutes Anti freeze temperatures When any one of the following conditions is reached Water chiller Hot and cold water outlet temperature Less than 2 C Anti freeze temperature Less than 2 C Less than 0 C Recovery temperature when all conditions below are met Water chiller Hot and cold water outlet temperature 4 C or more Anti freeze temperature 4 C or more Troubleshooting 1 Water heat exchanger unit check Has the water chiller parameter been set despite the fact that Switch the power off and Yes 8 1 1 the unit is a brine chiller Proceed to 1 2 if it is being used as repair a water chiller No 1 2 Ves Switch on the cold hot 1 2 _ Is the cold hot water pump shut down water pump No 1 3 Yes Maintain the correct flow 1 3 Is the flow volume insufficient volume No 1 4 Replace the water heat i Yes exchanger unit s control 1 4 Have the sensors installed properly in the correct positions board No Repair e For details on procedure to replace the water heat exchanger unit control board see t
170. ing start operation method Setting change operation method c1 iA Example Setting confirm operation method iA Setting cancel operation method Setting range Not accepted during indoor operation Press the SET S007 key for one second After entering the setting start operation mode operating the UP S005 and DOWN S006 keys makes it possible to change the setting values TEST WARNING LED light When pressing the UP S005 key When pressing the DOWN S006 key After entering the setting start operation or setting change operation completed press the SET S007 key for one second TEST WARNING LED off Press the HOME S004 key for one second before confirming setting 00 Not set 01 to 48 Number of indoor unit connected in same system to 48 units The number of indoor units that can be connected is restricted separately by each model 5 Gas type setting Level 2 Rejection conditions Setting start operation method Setting change operation method m LI LIR GIR Setting confirm operation method D cJ Example Setting cancel operation method Setting range Not accepted during indoor operation Press the SET S007 key for one second After entering the setting start operation mode operating the UP S005 and DOWN S006 keys makes it possible to change the setting values TEST WARNING LED light When
171. ining power on time is 5 hours This figure 5 decreases by one for the passage of each hour 4 3 returning to the normal display after 5 hours 3 Minute Off Display Level 0 Conditions Engine startup forcibly delayed by 3 minutes Display 7 segment display flashes at 1 second cycles Excluded when the No 9 indoor unit status is displayed Warning Display Level 0 Conditions Warning being issued Display TEST WARNING LED flashing Warning contents displayed on 7 segment LED ex 5 0 flo i Oil check warning Error Display Level 0 Conditions Error being issued Display TEST WARNING LED flashing Warning contents displayed on 7 segment LED When a multiple number of error occur each error will be displayed in approx 1 second cycles in the sequence of Outdoor error Outdoor warning Indoor error Example amp 0 0 7 0 Outdoor unit fault Forced Setting Activated Display Level 0 Conditions Forced setting effective Display TEST WARNING LED flashing Under these conditions during the normal display pressing the SET S007 key for 1 second cancels all forced settings Startup Wait Display Level 0 Displayed when waiting for startup Display examples HD 2 High compressor outlet temperature H bh Complete gas depletion check underway rR OD High coolant tempera
172. ion and broken wires in wiring between the Repair wiring outdoor main board and the relay board 4 6 Adjust the relay board In No 4 test mode when v_open valve open is there an Yes 4 7 output voltage AC 200V from discharge valves 1 1 1 2 4 6 discharge valve 2 suction valve 2 1 and 2 2 Replace relay Does suction valve 1 output a voltage AC 200V during No board cooling operation Adjust the solenoid valve coil Be sure to turn the power off before starting work Resistance Replace solenoid Disconnect the connectors of discharge valve 1 1 1 2 EE Ee discharge valve 2 suction valve 1 suction valve 2 1 and 2 2 4 7 from the relay board and measure the resistance between No 1 and 3 Normal value 20 C discharge valve 1 1 1 2 543 ohm Replace the S Abnormal f discharge valve 2 1132 ohm solenoid valve resistance Suction valve 1 1197 ohm suction valve 2 1 2 2 543 ohm Is the coil operating normally coil IV 82 e For work procedure for replacing outdoor main board see 5 Reference Document e For board and Electrical Wiring Diagram see Chapter 6 e Outdoor main board page VI 2 e Outdoor power board page VI 3 e Converter board VI 4 e Indoor control board for DC motor models page VI 5 e Outdoor Unit Electrical Wiring Diagram page VI 6 e LJ 30 C 45 0kQ 40 C 29 6kQ 50 C 20 0kQ 60 C 13 8kQ 70 C gt 9 7kQ 80 C gt 6 9KQ 90 C5 1kQ 100 C 3 8kQ 110 C
173. ion method When the engine will not start despite cranking being carried out 30 times revolution speed detected during engine start up cranking 5 seconds ON 10 seconds OFF Enforced pauses of 3 minutes every 5 cranks and 10 minutes every 15 cranks are in effect Troubleshooting 1 4 4 Has the fuel gas pressure dropped Is the fuel empty Measure the OK 2 1 Engine pressure at the gas pressure measuring port during cranking NG 1 2 Is the gas solenoid valve SW S002 on the outdoor unit s main board Yes 4 1 1 2 e set at NORM No Set SW at NORM 2 2 4 Are spark emissions normal Remove plug and check outside Or Yes 3 1 Plug check with a timing light No 2 2 Are there any poor connections poor contacts poor crimping or Yes Repair Wiring 2 2 severed wires between the ignition wiring and the outdoor unit s main board connector 6P white CN010 and 6P black CN011 No 2 3 2 3 Inspect ignition pl sasa 3 Inspect ignition plug P g ES NG Replace plug 3 OK 5 1 Zero 3 1 Inspect zero governor governor NG Restore 4 Is DC180V being applied between the fuel gas solenoid valve relay Yes 4 2 Gas 4 1 connector 4P 1 white No 1 and No 2 and between No 3 solenoid and No 4 during cranking No 6 1 valve Gas Is DC180V or more being applied between the fuel gas solenoid Ye
174. is set to 1400min Indoor Unit Status Display No 9 Level 0 lt n a f 4 gt Displays of connected indoor unit status Also possible to activate forced thermostat off settings for specific indoor units 2 1 Indoor unit status display Level 0 Shows menu selected indoor unit status display dal S E S 2 Indoor unit thermostat status display Level 1 In the indoor unit display mode pressing the SET S007 key displays the indoor unit thermostat status Example No 24 units connected Note dot at lower right Lit Thermostat on unit Flashing e 1 sec cycle flashing indicates thermostat off unit numbers e 0 5 sec cycle flashing indicates forced thermostat off status unit numbers Display examples No 1 to 32 units connected Note 1 dot at lower right 1 to 12 units from upper left to upper right of vertical line 13 to 24 units from lower left to lower right of vertical line 25 to 30 units from top left to top right of horizontal line 31 units 32 units from bottom left horizontal line Operate the UP S005 and DOWN S006 keys 37 RW 38 39 te 41 RW 42 43 RW 44 Ge d Ge COOC 33 to 44 units from upper left to upper right of vertical line 45 to 48 units from lower left to lower right of vertical line No 33 to 48 units connected X Note 2 dots at lower right 3 Indoor unit forced thermostat off setting Level 2 Press the SET S007 key during
175. istance for each phase is around 14 to 18Q everything is normal 5 1 Coolant electrical three way valve inspection Start up the unit and then perform the inspection with the Flula F enforced water circuit setting on the No 4 Test Run Forced Settings menu This switches alternately between the radiator 3 minutes and sub evaporator 1 minute 15 seconds so valve operations can be determined in accordance with tube temperature fluctuations IV 22 A22 Coolant Pump Error Error detection method Errors can be determined when coolant pump rotations and driving meet the following conditions e When an error is triggered once owing to the coolant pump revolutions not increasing or not being able to be detected when the engine is started up e When either overcurrent insufficient revolutions or excessive revolutions are detected in the coolant pump when the engine is operating the engine will be momentarily halted and an error flag set The reason for the engine being shut down is due to the error flag being triggered five consecutive times in one hour Troubleshooting 1 Is the voltage being supplied to the outdoor unit normal Yes 2 1 Eee paler j AE iao hether the voltage is too tabl Sheck Check to see whether the voltage is too low or unstable No Repair the power source 2 Are there any bad power cable connections when 3 phase Yes 2 2 Coolant pump 2 1 equipment is in use
176. its exceeds the number of indoor units set on the outdoor unit with indoor unit connected Troubleshooting 1 When the indoor unit is connected 1 Autoaddress 1 1 Perform pre check before auto addressing See 5 Reference Document 2 When the water heat exchanger unit is connected 1 4 1 S the power to the water heat exchanger unit s switched Yes Switch on the power Power supply off No 2 1 2 2 4 8 the indoor outdoor operation wiring severed or short Yes Repair Wiring Indoor outdoor circuited No 2 2 operation wiring 2 2 e high voltage AC200V etc being applied to the indoor Yes 4 1 outdoor operation wiring circuits No 3 1 3 Has the number of connected indoor units set with the Yes 3 2 Water heat 3 1 No 10 parameter on the outdoor unit s main board been Reset the outdoor unit s exchanger unit No amended to a figure other than two power supply count 3 2 Set the number of connected indoor units to two with the No 10 parameter on the outdoor unit s main board z Replace the water heat emote Yes exchanger unit s control controller wires board link wiring P Is the water heat exchanger unit s control board 2P 13 between 4 1 already in use R the water heat the remote y Ge e Ge Sr ise controll r ahd No exchanger unit s contro the water heat exchanger unit board connectors 2P 12 2P 13 e
177. l o board e For board and Electrical Wiring Diagram see Chapter 6 e Outdoor main board page VI 2 e Outdoor power board page VI 3 e Converter board VI 4 e Indoor control board for DC motor models page VI 5 e Outdoor Unit Electrical Wiring Diagram page VI 6 See instructions packaged with servicing indoor control board for procedure on replacing indoor control board IV 81 P03 High Compressor Discharge Temperature Error detection method e When the compressor discharge temperature gt 130 C during engine operation complete combustion the engine is stopped and an error flag is set A Compressor Discharge Temp High fault is assumed when this flag has shut down the engine 5 consecutive times e Revolution speed setting gt minimum revolution speed is not included in pre trip e Not included in pre trip when liquid valve opening lt 400 step Troubleshooting 1 Disconnect compressor outlet temperature sensor connector Yes 2 1 Sensor 1 1 2P red CN054 and measure resistance Appropriate value See 5 Reference Document for thermistor characteristics No Replace sensor 2 Out of gas Determine using compressor outlet pressure y Repair leak and F es Out of gas 2 1 compressor inlet pressure and indoor outdoor electric valve charge gas opening No 3 1 3 Yes Inspect indoor Tubing 3 1 Any symptoms of pump down De
178. lay example 2 7 5 Maximum revolution count during cranking 275min Repeat from step to perform cranking once again In this event the revolutions displayed in step will be reset to before cranking at ca Press the SET key for one second to end the process C Eier Toln will be displayed and the TEST WARNING LED red will be extinguished This clears the forced cranking mode The display will return to the normal display if left in this state with no key operations for 10 minutes and when the HOME key is pressed for one second Outdoor Unit Setting No 5 Level 0 lt ala l s Key operation is used to perform the outdoor unit setting 1 Outdoor unit setting display Level 0 Displays selection of outdoor unit setting mode at the menu Ele WE FE loll e 2 Outdoor unit setting item select operation Level 1 Pressing the SET S007 key while in the outdoor unit setting display mode activates the following display Example 7930 Example Data code 1 engine operation time 1234 hours Pressing the UP S005 and DOWN S006 keys in this mode makes it possible to select the date code 3 Outdoor unit setting operation Level 2 Setting start operation method Setting change operation method Setting confirm operation method Setting cancel operation method
179. light Set fuel gas adjustment valve at full closing position Forced setting in progress display TEST WARNING LED light is shown during this time Press the SET S007 key for one second when forced engine adjustment valve is being closed Forced setting in progress display is canceled TEST WARNING LED off and forced setting selection operation returns After positioning forced engine adjustment valve closing position is canceled automatically 12 Forced defrosting operation setting Level 2 Used when frost builds up on the outdoor unit s heat exchanger when in the heating mode Cannot be set with W Multi and 3WAY This setting applies a load to the equipment and it must not be set if no frost has built up on the outdoor unit s heat exchanger Defrosting operations perform the enforced cooling cycle even when the indoor unit is in the heating mode It is therefore necessary to be the permission of the customer before making this setting 13 14 we wm Display olujt dE F Rejection conditions Operations are paused when defrosting operations are in progress with the Operating method exception of the forced defrosting operations Press the SET key for one second without forced defrosting operations being set The TEST WARNING LED will be illuminated If the operation signals are not issued by the indoor unit perform operations with the test run set
180. lue is 10 BTDC but the observed value was 13 BTDC Press the UP S005 or DOWN mr an S006 key to set a correction of 3 in relation to the current HD ignition timing offset value i ii iii iv Dp a Display the current HB ignition timing offset value and check it The current value is zero 0 The display for BB D will be as shown at right With BB ignition timing offset displayed press the SET key S007 for one second or more The TEST WARNING LED D052 will light and LEVEL LED D053 will flash Press the UP S005 or DOWN S006 key to set a correction of 3 in relation to the current value checked in ii The display will show DD 3 right figure Caution The display example at right is an example for when the current value checked in i is zero 0 If the current value is 2 and a 3 correction is set in relation to that value the value will become 1 after the setting is made The display will show HE i figure below right With BE 3 right figure displayed press the SET key S007 for one second or more The TEST WARNING LED D052 will go out and LEVEL LED D053 will light The ignition timing offset mode will be cancelled and the setting process will be ended 5004 HOME O HOME Q
181. lve 1 suction valve 2 1 and 2 2 normal solenoid valve 15 7 from the relay board and measure the resistance between No 1 and 3 Normal values 20 C Discharge valves 1 1 1 2 543 Q F Replace the Discharge valve 2 1 132 Q Resistance solenoid valve s Suction valve 1 1 197 Q Suction valves 2 1 2 2 543 Q Abnormal coil Is the coil operating normally e See instructions packaged with servicing indoor board for procedure on replacing indoor control board e See 5 Reference Document for details on the procedure for replacing the water heat exchanger unit s control board e 2 2 Any air shortage An air shortage is likely if the installation conditions pictured below are not met Unit perimeter Unit top I 600mm or more U 2000MM or more Refrigerant tubing Front 1000mm or more e 6 1 Indoor electric valve check Electric valve opening determination standards During heating operation after 30 minutes have passed in complete combustion the indoor coil outlet temperature must exceed 40 C Check using No 0 Operation data display Orange Yellow Gray Red Black White e 6 2 Normal if a pulse voltage is applied across indoor control board connector PMV 6P white CN082 No 5 and No 1 4 after turning power ON About DC4V measured on tester e 6 3 Unplug indoor electric valve connector 6P white and measure Red Black White resistance of electric valve coil between No 5 and No 1 4
182. ment points Check this by exchanger 10 1 i ai u it s coil displaying the temperature of the water heat exchanger unit s coil on the outdoor unit No 11 1 sensor 11 Outdoor Check the outdoor unit s motor operated valve OK 12 1 units motor 11 1 Coil resistance 46 Q between No 5 and No 1 to 4 operated 32 Q for 3WAY NG Replace valve check 12 OK 13 1 High F 12 1 Check the high pressure sensor pressure NG Repair sensor a s 13 1 Is the bypass valve operating normally Wiring and coil unit Yes 14 1 eae Coil resistance 46 Q between No 5 and No 1 to 4 No Replace 14 Yes Repair Engine 14 1 Is the engine throttle sticking ii Inspection needed 15 Measure the tube temperature around the solenoid valve Replace the Outdoor in the trial run mode to check that the solenoid valves are Yes outdoor unit s unit s operating normally in each operation mode cooling heating main board solenoid 15 1 For details on solenoid valve operations in each operating valve check mode see the section explaining the control functions through in the case to operation control in the Outdoor Unit Manual Are the No 15 2 of 3WAY solenoid valves operating normally Yes 15 3 Check the outdoor unit s power board 15 2 Is the outdoor unit s power board CN013 outputting the Replace the solenoid power supply voltage AC 200 V No outdoor unit s power board 45 3 Are there any poor connections or severe
183. mping or broken wire or pinched Yes Repair wiring G wire in sensor connector and wiring N 3 4 wiring o 3 Replace the outdoor Check Disconnect the sensor connector and measure the resistance Yes main board or outdoor temperature 3 1 value Is the resistance between the broken wire detection power board sensor value and the short circuit detection value No Replace temperature sensor e For work procedure for replacing outdoor main board see 5 Reference Document e For board and Electrical Wiring Diagram see Chapter 6 e Outdoor main board page VI 2 e Outdoor power board page VI 3 e Converter board VI 4 e Indoor control board for DC motor models page VI 5 e Outdoor Unit Electrical Wiring Diagram page VI 6 IV 60 F16 Compressor Inlet Outlet Pressure Sensor Error Error detection method When pressure in the following chart is detected Detect Open Detect Short Circuit 0 5MPa 5 5MPa OV 4 9V Troubleshooting 1 Install gauge on large tube and small tube service port and e B Yes Operate again Check 4 4 jopen valve see 1 below for procedure to equalize pressure pressure within refrigeration circuit Gauge display nearly identical to i g No 2 1 sensor outdoor main board display 2 Is there a DC 5V voltage between the following terminals of Yes 2 2 Check wiring 2 1 he outdoor main board connector 6P red CN049 No Replace outdoor main No 1
184. n is possible from items No 0 to No 8 The following data is displayed phi Measurement item Display Standard operation data code Data name Unit examples During cooling During heating operations operations 1 Engine operation time Hrs ells 2 Engine operation count Times ai e S 4 5 3 Starter operation time Seconds 3 Join 4 Starter operation count Times ul u 5 Current oil change time Hrs SI galal js 6 7 8 9 A b c d E Clutch on time Hrs EI 5 o 8 F Clutch on count Times EI sia G Clutch 2 on time Hrs MRE H Clutch 2 on count Times KL sia i J K n o P Oil error time Hrs PDDE q 10 Engine revolution setting min Galopp 600 2200 11 Engine revolutions min Jelent 600 2200 12 Compressor inlet pressure MPa Hel H ya 0 60 0 90 0 30 1 10 13 Compressor outlet pressure MPa Ha JED 2 30 3 20 2 40 3 30 14 Compressor inlet temperature C Ua 3 510 5 30 0 30 15 Compressor outlet temperature C Jald doln 70 110 80 110 16 AP C SPEECH C JE ue 30 50 5 10 7 temperature BWAY only S 30 50 5710 18 19 20 Refrigerant temperature
185. n the exhaust gas temperature gt 130 C continuously for 10 seconds the engine is stopped momentarily and an error flag is set An Exhaust Gas Temp High error is assumed when this flag has shut down the engine once Troubleshooting 1 Yes 2 1 Exhaust gas 1 1 Measure the actual exhaust gas temperature Is it high temperature No 4 1 S Is th ign of the coolant leaking GE Coolant s there any sign of the coolant leaking Ce A epair the leaks and amount 21 Check the base and around the base SE refill with coolant check e Check the amount in the reserve tank NG e Check the coolant route detached hose etc and perform an air purge OK 3 1 Is the coolant pump operating normally e Carry out an inspection while referring to A22 There is a possibility 2 2 Are there any fluctuations in coolant pump revolutions that air has become or repeated starts stops etc when the coolant pump is NG mixed in so refill with operating coolant and perform an air purge 3 Replace the exhaust gas Exhaust une heat exchanger Is there heavy soiling on the inside of the exhaust gas tube on gas heat 3 1 the exhaust gas heat exchanger exchanger No 4 1 check a ae Measure the resistance on the exhaust gas temperature OK Outdooriunit ee Wiring and i board t ermist r 4 1 sensor see 5 Reference Document for details on thermistor cheok characteristics NG Replace the senso
186. n the oil pressure switch terminal and body ground pressure measure DC 0V No 2 2 switch p Yes Oil pressure switch 2 2 At engine start does the oil pressure measure 49kPa 0 5kg cm or defective more No 2 3 o Yes Replace oil filter 2 3 Is the oil filter clogged SS a No Engine is defective 3 Does any of the wiring below contain broken wires or suffer from poor EH Sc Y R Wiring connection contact or crimping e Wiring from outdoor main board eS ee 3 4 connector 2P red CN012 No 1 to oil pressure Wiring from outdoor main board connector 2P red CN021 No 1 to power board connector Replace outdoor 2P red CN038 No 1 Wiring between switches Wiring from outdoor No main board main board connector FG CNO75 to terminal on starter power supply e For work procedure for replacing outdoor main board see 5 Reference Document e For board and Electrical Wiring Diagram see Chapter 6 e Outdoor main board page VI 2 e Outdoor power board page VI 3 e Converter board VI 4 e Indoor control board for DC motor models page VI 5 e Outdoor Unit Electrical Wiring Diagram page VI 6 e 1 1 Oil tank top view Tank side Storage side SC P SEI Engine oil pressure switch e 3 1 With oil pressure DCOV No oil pressure DC12V A02 Engine Oil Error This function is used to advise the user that the time for changing the engine oil has arrived or is close It is not a function for detecting
187. ndoor unit EE Simult flashing Real time clock RTC function F30 Operating ed Wait Ss L O Outdoor unit Outdoor nonvolatile memory EEPROM error F31 Lit Simult flashing Inconsistencies in indoor outdoor unit models non GHP ER equipment connected Indoor unit Multiple main units set for group control L03 Operating Timer Wait a d 8 De 7 1 1 riority indoor unit LO yy vy 5 Duplicate ngage unit P 2 t Ek POR Outdoor unit e priority setting excluding priority indoor unit LO6 l l Group control wire present for individual control indoor unit LO7 Simult flashing S Indoor unit address not set L08 Indoor unit EI Indoor unit capacity not set Log 2 Duplicate system outdoor unit address setting L04 oe n ge 5 Outdoor unit capacity not set L10 L L a i ing fai SE ER e i Indoor unit model setting failure L13 AY AY Outdoor unit Lit Indoor unit pairing failure L15 S Simult flashing Gas type setting failure L21 When the water heat exchanger unit is connected in the table above please replace indoor unit with water heat exchanger unit for the alarm Note Some items are not indicated depending in model II X Flashing O Lit On r T Ki Detection Item Warning Wireless Remote Control Device Display Lamp Display Checked Indoor unit ceiling panel connector connection failure P09 Operating Timer Wait Indoor fan error indoor
188. nect it to the designated sockets Faulty directional installation will cause the memory to break Fit the notched section of the IC socket into the notched semicircle section of the nonvolatile memory Nonvolatile memory IC socket e Because the legs are easily bent be careful when removing or plugging in the memory 3 Turn on the power supply and confirm operation Outdoor Nonvolatile Memory EEPROM Replacement Sequence e When replacing the outdoor main board in the event of nonvolatile memory breakage or F31 error the work of replacing the outdoor nonvolatile memory should be conducted in the following sequence e A nonvolatile memory is also used in the indoor unit but be aware that there is no compatibility between the memories 1 To ensure reproduction of the nonvolatile memory contents before removing the nonvolatile memory make notes of the various judgment values in the parameter setting mode as well as operation monitor data code numbers to 4 6 to 9 and oil change time 2 Install the nonvolatile memory package in the service board in the outdoor main board e Handle the nonvolatile memory with care e Because the nonvolatile memory needs to be installed in a certain direction see diagram below be careful to correctly connect it to the designated sockets Faulty directional installation will cause the memory to break Fit the notched section of the IC socket into the notched semicircle section of the
189. ng Failure is assumed on the first occurrence of a mismatch between the gas type setting on the outdoor main board and the fuel change switch setting However a mismatch is not detected after the gas type is confirmed The factory default gas type setting and fuel change switch setting are both 13A Note To use E grade propane as the fuel gas G gas compatible model the fuel flow control value and gas type need to be set e Setting the fuel regulating valve Leave the power breaker to the outdoor unit OFF 1 Set the P N switch lever attached to the engine mixer to the position shown in the illustration Rotate it 180 degrees clockwise up until the stopper Do not apply excessive force to rotate it further than this 2 Attach the short circuit connector supplied to the N P switch CN013 on the outdoor unit s control board Switch the outdoor unit s power breaker to ON 3 Attach the lt Gas type gt label and lt Gas type setting and adjustment completed gt label inside the electrical box to the prescribed PL NAME position Troubleshooting 1 Does the gas type setting match the supplied gas type Yes 1 2 Gas 1 1 classification typesetting Control board menu 10 initial settings gas type setting No Change settings Ges E Disconnect outdoor main board connector 3P red CN013 Peer connector and measure conduction of the N P change
190. ng the power supply ON when selecting menu No 0 or when no key operation occurs for 10 minutes Normal Display Level 0 On this outdoor unit system the following data displays are repeated at 10 second intervals Display Display contents Display examples Remarks sequence 1 Number of indoor units ulB oles Outdoor unit address T System address Number of indoor units Indoor units 20 units Outdoor address It is always 0 System address System 01 Engine operation time Utral uig 12345 hours Compressor inlet pressure Life ole 4 Compressor outlet pressure 73 on When conducting automatic addressing in place of engine operation time the display will indicate that automatic addressing is in progress Display Display contents Display examples Remarks sequence 1 Number of indoor units uO ole e Outdoor unit address T System address Number of indoor units Indoor units 20 units Outdoor address It is always 0 System address System 01 2 Automatic addressing REENEN Mode 1 HI Rl dla Mode 2 Heating CT Ald lal Mode 3 Cooling Heater Remaining Power on Time Display Level 0 Conditions 5 hours yet to elapse since turning on outdoor unit power supply Engine yet to be operated since turning on outdoor unit power supply Compressor outlet temperature is 60 0 C or below Display C K 5 Remarks This display indicates that crank case heater rema
191. ng toward 2F First opened 70 C Fully open 80 C IV 19 2 3 The air discharge hose must not be emitting large amounts of bubbles Air bleed cock on the tube leading from the engine outlet between the wax valve 3 1 Resistance values of the coolant temperature sensor see the chart on thermistor characteristics for further details 40 C 1 2kQ 50 C 879Q 60 C 6420 70 C 4779 80 C 361Q 90 C 2270 100 C 216Q 3 4 Check to make sure the exhaust heat collection valve is not locked closed by following the instructions below 1 Resume operations of the outdoor unit in the heater mode Either as a test run or with remote controller operations 2 Once the outdoor unit is operating measure the temperature of the exhaust heat collection valve s secondary duct for approximately two minutes see fig A19301 3 If it is clear that the temperature has not dropped in comparison with the situation before start up then there is a chance that the valve is locked closed Everything is normal if the temperature does not drop IV 20 A21 Coolant Level Error Error detection method e A flag will be set if the possibility of air entering the coolant circuit is detected during air mix confirmation operations prior to starting the engine complete combustion The engine will continue to operate An error will be triggered if this possibility is detected three consecutive times However there are also cases in which
192. ngine 2 1 Measure compression See A06 5 1 NG 22 Check 2 1 again after washing the valve and adjusting the valve OK 2 3 2 2 clearance NG Replace engine Any problem with compression head OK 2 4 2 3 Is the air cleaner soiled Visual inspection NG Clean and Replace Yes 2 7 2 4 A k emissi 1 re spark emissions norma No 12 5 OK 2 6 2 5 I t igniti l A06 2 5 Inspect ignition plug see A06 2 3 NG Replace 2 6 Replace the ignition coil cam angle sensor and crank angle sensor one by one to identify the defective part OK 2 8 2 7 I t th A 1 nspect the zero governor see A06 3 1 NG Restore OK 2 9 2 8 Is the ignition timi kay hapt 9 s the ignition timing okay See Chapter 5 9 NG Adjust 2 9 Is air being sucked in Check the rubber plug on the intake manifold GE S ane NG Replace Is 4V DC approximately being applied between outdoor units main Yes 2 11 2 10 board connector 6P black CNO66 No 1 and No 2 No 3 Replace the and between No 4 and No 5 No 6 when the power is No outdoor unit s turned on during positioning main board Is DC voltage being applied between outdoor unit s main board Yes 2 12 211 connector 6P red CNO65 No 1 and No 2 No 3 and Replace the between No 4 and No 5 No 6 when the power is turned on No outdoor unit s during positioning main board Repl th 212 Inspect the mixer s stepping motor both the throttle and t
193. nit capacity is not set e When the indoor unit capacity setting was forgotten after installing a new nonvolatile memory EEPROM e Inthe remote controller detailed settings mode the indoor unit capacity is invalid Troubleshooting 1 Indoor unit 4 1 In the remote controller detailed settings mode check the indoor unit capacity setting item capacity code 11 If set to Invalid 0 set the correct indoor unit capacity setting e See 5 Reference Document for detailed remote controller settings IV 73 L10 Outdoor Unit Capacity Not Set Error detection method An error is determined when the outdoor capacity coolant generator or engine type is not set e When new non volatile memory EEPROM is installed and the outdoor unit settings capacity refrigerant generator and engine type are not made e When the outdoor unit model setting is Invalid Troubleshooting 1 Outdoor 4 1 On the outdoor main board use menu item No 10 to check outdoor unit capacity refrigerant unit model generator and engine type and to set them up correctly setting e Display the outdoor unit model using the outdoor main board menu item No 03 e For information on model settings and clearing non volatile memory EEPROM memory clear using menu item No 10 on the outdoor main board see 5 Reference Document e LJ After changing the model the nonvolatile memory EEPROM is clea
194. nnot be detected when the water heat exchanger unit is connected Error detection method After confirming existence of the signal output board an error is determined upon no reception from the signal output board e Signal output board is defective e Wiring to signal output board is defective Troubleshooting R 4 1 Wiring to signal output board option board broken or Yes Repair wiring Signal output eeng board short circuited No 1 2 We Replace indoor control 4 2 Replace the signal output board option board and wiring board Is E11 displayed again Replace signal output board e See instructions packaged with servicing indoor board for procedure on replacing indoor control board No IV 47 E12 Automatic Address Setting Is in Progress Automatic Address Setting Start is Prohibited Cannot be detected when the water heat exchanger unit is connected Error detection method An error is determined when an auto addressing startup command is received from another unit during auto addressing e Ina system with multiple outdoor units with indoor outdoor operation wiring connected with link wiring an auto addressing startup command was issued by another unit during auto addressing Troubleshooting 1 In a system with multiple outdoor units with indoor outdoor operation wiring connected with Autoaddress 1 1 link wiring an auto addressing startup command was is
195. nt circuit The values on the outdoor main board display and the gauge should be roughly identical Is it 0 1 No 2 1 MPa or less 2 Y s Replace pressure Check 2 1 Check compressor inlet pressure sensor wiring OK sensor MA Mo Repair wiring 3 Repair leak and charge Check 3 4 Check the compressor relief valve Are there any leaks or Yes gas compressor signs of leaks No 32 relief valve V s Unclog tubing Charge 3 2 Is the tubing clogged gas No 3 3 V s Repair leak and charge 3 3 Are there any other places with leakage gas No Replace compressor e For board and Electrical Wiring Diagram see Chapter 6 e Outdoor main board page VI 2 e Outdoor power board page VI 3 e Converter board VI 4 e Indoor control board for DC motor models page VI 5 e Outdoor Unit Electrical Wiring Diagram page VI 6 e LJ Use outdoor main board menu item No 04 to open valve using trial operation forced settings Press the SET key the LED lights as the valve opens Press the key again to turn off the TEST WARNING LED and close the valve oO 004 O HOME Deeg e 2 1 0 5 0MPa V 0 5 45V Outdoor main board PS1 GP Red CN049 UP DOWN 5005 006 SE Ka aT Red 3 4 H ressure sensor Brown 2 3P 3 Black Black 1 IV 93 P18 Bypass Valve Error Error detection method e A warning is output if it is determined that the outdoor unit needs a bypass valve inspection e In practical terms what happens
196. oard Yes outdoor unit s connector 3P white CN002 No 1 to No 3 power board No G A Yes 6 5 Is 200V AC being applied between the filter board connector 3P white CN003 No 1 to No 3 No Replace the filter board 6 4 Are there any poor connections contacts or severed wires between Yes Repair Wiring 6 5 the outdoor unit s power board connector 3P white CN002 and the filter board connector 3P white CN003 No 1 to No 3 No 7 1 7 Are there any poor connections poor contacts poor crimping or Crank cam severed wires in the following wiring Yes Repair Wiring angle au 7 Between the outdoor units main board connector 3P white CN015 sensor and the crank angle sensor connector e Between the outdoor unit s main board connector 3P black CNO16 No 8 1 and the cam angle sensor connector 8 8 1 Inspect the ignition coil coil igniter and the ignition wiring If they are okay then replace the Ignition coil outdoor unit s main board e For work procedure for replacing outdoor main board see 5 Reference Document e For board and Electrical Wiring Diagram see Chapter 6 e Outdoor main board page VI 2 e Outdoor power board page VI 3 e Converter board VI 4 e Indoor control board for DC motor models page VI 5 e Outdoor Unit Electrical Wiring Diagram page VI 6 2 3 1 Check the plug cap to ascertain that it is 0 8 mm or less 2 Check for insulator d
197. od Operation details Releasing method D E None dp not set TEST WARNING LED light Activates forced engine distributor mode Forced setting in progress display TEST WARNING LED light is shown during this time Press the SET S007 key for one second while in forced engine distributor mode The forced setting in progress display will be canceled at this time returning to forced setting select operation TEST WARNING LED off 10 Forced engine feedback Level 2 11 Display Rejection conditions Press the SET S007 key for one second while forced engine feedback is not set Operating method Operation details Releasing method E IEIEIEId None TEST WARNING LED light Activates feedback control Forced setting in progress display TEST WARNING LED light is shown during this time Press the SET S007 key for one second during forced engine feedback The forced setting in progress display will be canceled at this time returning to forced setting select operation TEST WARNING LED off Forced engine adjustment valve position Level 2 Display Rejection conditions Press the SET S007 key for one second while the forced engine adjustment valve Operating method Operation details Releasing method ECL af Sle Indoor unit operation in progress closing is not set TEST WARNING LED
198. om the relay board and measure the resistance between No 7 7 1 and 3 Replace Normal value 20 C discharge valve 1 1 1 2 543 Q discharge Abnormal the valve 2 1132 Q resistance solenoid Suction valve 1 1197 Q suction valve 2 1 2 2 543 Q valve coil Is the coil operating normally IV 92 P15 Complete Refrigerant Gas Depletion Error detection method e Engine startup is delayed when compressor inlet pressure lt 0 1 Mpa A delay that lasts 10 minutes is counted as a fault e During engine operation complete combustion when compressor inlet pressure lt 0 1 MPa or outdoor heat exchanger outlet temperature saturation temperature gt 30deg 1 continues for 3 minutes the engine is stopped and an error flag is set A Refrigerant Gas Completely Absent fault is assumed when this flag has shut down the engine 5 consecutive times Only during cooling heat exchange outlet temperature is the outdoor heat exchanger outlet during cooling e Not detected for 7 minutes from complete combustion If the compressor inlet pressure lt 0 01 MPa for a 3 minute interval an error will be detected even within seven minutes of complete combustion Troubleshooting 1 Install a gauge on a large tube and small tube service port Check open the valve open valve using outdoor main board No Yes 3 1 pressure 4 1 4 trial operation forced setting to equalize pressure in the sensor refrigera
199. on Pressing the SET S007 key for one second in the model type display mode moves to the double speed setting display TEST WARNING LED light Press the SET S007 key for one second in the double speed setting mode TEST WARNING LED off The 3 minute off time timer counts at 10 times or greater speed than normal The forced setting in progress display appears during the double speed setting TEST WARNING LED light Test Run and Outdoor Unit Forced Settings No 4 Level 0 lt nlali 4 gt Key operation is used to determine the settings for forced test run forced bypass valve closing forced water circuit and forced valve opening D 1 Test run and forced setting display Level 0 Displays of the test run and forced settings selected with the menu EISE 2 Forced setting selection operation Level 1 Pressing the SET S007 key in the test run forced setting display mode causes the following display to appear Operating the UP S005 and DOWN S006 keys in this mode makes it possible to select the settings for forced cooling test run forced heating test run forced valve opening forced water circuit forced bypass valve closing forced engine distributor mode forced engine feedback and forced engine adjustment valve closing Display Function Loot Forced cooling test run setting HIERT Forced heating test run
200. on forced setting When the engine is started an alarm displays on the 7 segment LED display Engine start standby is displayed during menu item No 0 normal display If the unit is in start standby and each start condition is not accomplished when the engine is started the uncompleted start condition is displayed on the 7 segment LED There are 5 types of start conditions some that start automatically after a set time and some that become abnormal See IV 1 4 3 for a list of startup conditions The outdoor unit does not operate at all e The temperature controller is operating thermo off Cooling is poor heating is poor e Is the temperature controller remote controller temperature properly set Is there too much load on the air conditioner e During demand control because the unit operates at below the set fuel gas flow control value cooling may be slightly bad heating may be slightly bad Inspect oil flashes on the remote controller When the operating hours for the gas engine reach a designated time Inspect oil flashes Change the engine oil If the engine oil is not changed within 200 operating hours after flashing warning A02 will be displayed and operation will stop LI 2 Before troubleshooting W MULTI series 1 W MULTI series system overview W MULTI series is a system that can join up to two outdoor units to the same refrigerant tube and control each outdoor unit while performing air
201. on wiring Correct any duplicate addresses that address are found and perform the auto addressing process 2 A Link wiring is not possible when the water heat exchanger unit is connected Disconnect the Link wiring 2 1 Ai link wiring forbidden IV 69 L05 06 Duplicate Indoor Unit Priority Setting Cannot be detected when the water heat exchanger unit is connected Error detection method An error is determined when multiple indoor units have the operation mode priority setting within the same refrigeration tubing system e The indoor unit with the priority setting displays L05 e The indoor units without the priority setting display L06 e When multiple units have the operation mode priority setting set in remote controller simple settings mode Troubleshooting 1 Mot 4 1 Check operation mode priority item code 04 in remote controller simple settings mode and priority assign operation mode priority setting 1 to only one indoor unit setting e See 5 Reference Document for detailed remote controller settings IV 70 L07 Group Control Wire Present for Individual Control Indoor Unit Cannot be detected when the water heat exchanger unit is connected Error detection method An error is determined when remote controller group wiring includes an indoor unit set for independent operation e When remote controller group wiring is set up after auto addressing is complete
202. ons are given below A Severed wire detection Short circuit detection Display Sensor name P resistance resistance F04 Compressor outlet temperature sensor Note 1 1300 or less Outdoor heat exchanger inlet temperature sensor 400kQ or more 1300 or less F06 i Outdoor heat exchanger 2 inlet temperature 400KQ or more 1300 or less sensor 3WAY only F08 Outside air temperature sensor 400kQ or more 1300 or less F12 Compressor inlet temperature sensor 400kQ or more 1300 or less F13 Coolant temperature sensor 62kQ or more 22Q or less F17 Hot water outlet temperature sensor 400kQ or more 1300 or less F18 Exhaust gas temperature sensor Note 2 1300 or less ung Temperature sensor for oil level measurements 400KQ or more 1300 or less W Multi only Note 1 Detects severed wires in the compressor s outlet temperature sensor When the pressure is more than 1 0 MPa and the compressor s outlet temperature is less than 6 C for 3 consecutive minutes during complete combustion Note 2 Detects severed wires in the exhaust temperature sensor When the coolant temperature is gt 80 C the exhaust gas temperature is lt 30 C and the exhaust gas temperature does not change for 5 minutes during complete combustion Troubleshooting 1 Yes 2 1 Check 1 1 Is the sensor correctly installed at the prescribed location installation No Repair Gen 2 4 Poor connection contact cri
203. oor connection and broken wires in wiring between the Yes Repair wiring power board and the relay board No 7 4 Adjust the outdoor main board In No 4 test mode when v_open valve open is there a drive output voltage DC 12V from discharge valves 1 1 1 2 Yes 7 5 discharge valve 2 suction valve 2 1 and 2 2 9P white CN018 Discharge valve 1 1 1 2 between No 3 9 Discharge valve 2 7 4 between No 4 9 Suction valve 2 1 2 2 between No 6 9 Does suction valve 1 output a drive voltage DC 12V during o Replace outdoor main cooling operation Suction valve 1 between No 3 9 Note that suction valve 1 closes when powered the other valves operate in the opposite way board IvV 91 Any poor connection and broken wires in wiring between the Yes Repair wiring ES outdoor main board and the relay board No 7 6 Adjust the relay board In No 4 test mode when v_open valve open is there an Yes 7 7 7 6 output voltage AC 200V from discharge valves 1 1 1 2 discharge valve 2 suction valve 2 1 and 2 2 Does suction valve 1 output a voltage AC 200V during No Replace relay board cooling operation Adjust the solenoid valve coil j Replace Be sure to turn the power off before starting work Resistance is solenoid Disconnect the connectors of discharge valve 1 1 1 2 normal valve discharge valve 2 suction valve 1 suction valve 2 1 and 2 2 fr
204. oor outdoor control wires connected to multiple Yes 3 3 3 2 outdoor units Wire linked No 3 6 Is S010 terminal resistor ON OFF switch on the outdoor Yes 3 4 3 3 main board set to ON for only one outdoor unit and set to OFF for all other outdoor units 1 No Correct the setting i Yes 3 5 3 4 Are there any duplicate settings for outdoor units T oO For link wiring set a system address for each outdoor unit in the order of 1 2 3 and then ae perform automatic addressing 3 6 Perform automatic addressing Terminal resistor is basically ON SHORT for one unit only but depending on the installation status can be set to ON SHORT for up to 3 units 2 3 Backup connectors and terminals for indoor outdoor control wires for communication Equipment Primary Backup Outdoor Unit CN045 for communication CN046 EMG Indoor unit CN040 0C CN044 EMG System controller Terminal block No A7 and B7 Terminal plate No 3 Indoor outdoor backup control wire Multi controller Terminal plate No 2 U2 Terminal block No 3 Intelligent controller Terminal block No 2 Terminal block No A6 and B6 AMY adapter JP3 A side JP3 B side For a system linking wiring systems if the systems are connected to water heat exchange unit depending on the state of the hot cold water automatic address alarm may occur If this happens remove the link wiring an
205. oor unit transmission failure to outdoor unit LO2 Inconsistencies in indoor outdoor units non GHP E06 Outdoor unit receive failure from the indoor unit equipment connected E07 Outdoor unit transmission failure to the indoor LO3 Multiple main units set for group control unit L04 Duplicate system outdoor unit address setting E08 Duplicate indoor unit address setting LO5 Duplicate indoor unit priority setting priority E09 Multiple main remote controller units set indoor unit E10 DC fan driver communication error LO6 Duplicate indoor unit priority setting excluding E11 Indoor unit receive failure from the signal output priority indoor units board LO7 Group control wiring exists for individual control E12 Auto address start forbidden due to auto indoor unit address in progress LO8 Indoor unit address not set E13 Indoor unit transmission failure to the remote LO9 Indoor unit capacity not set controller L10 Outdoor unit capacity not set E15 Automatic address alarm too few units L13 Indoor unit model setting defect E16 Automatic address alarm too many units L15 Indoor unit pairing defect E18 Group control wiring communication failure L16 Water heat exchanger unit setting defect when E20 No indoor unit the water heat exchanger unit is connected E24 Communication failure between outdoor units L19 Duplicated water heat exchanger unit parallel only detected with W Multi address when the water heat exc
206. or unit transmission response is received for 3 minutes e Indoor unit power is OFF e Indoor unit DISP pin CN063 CN072 is short circuited e Indoor outdoor operation wiring is short circuited or broken e Indoor unit signal output board option board is defective Troubleshooting 1 Yes Turn power ON Indoor power 1 1 Is the indoor unit power OFF source No 2 1 2 indoor outdoor operation wiring broken or short circuited Yes Repair wiring Indoor outdoor 2 1 SS See 5 Reference Document N ER operation wiring o 3 3 4 Sie DISP pin CN063 CN071 or inspection pin CN062 Yes Eliminate short circuit Indoor control CN071 on the indoor control board short circuited No 3 2 board 3 2 lS an option board CN060 or wireless remote controller Yes 3 3 CN041 connected to the indoor control board No 3 5 Does E06 disappear several minutes after disconnecting said connector on the indoor control board When Yes 3 4 3 3 controlling with two remote controllers and the wireless remote controller is the main set the other remote No 3 5 controller as the main 3 4 Replace the removed option board or wireless remote controller operating unit wiring and all 3 5 Indoor control board failure Replace board e The designation is used in the table to indicate indoor boards for DC and AC motor models There is no TEST pin on the indoor board for AC moto
207. ormal Remote signal from an indoor Remote controller transmission failure E02 controller unit Indoor unit receive failure from remote controller central E03 EE l e uni Duplicate indoor unit address setting E08 Operating Timer Waita Invalid settin Eed 9 Multiple main remote controller units set E09 L Remote es controller lashing Indoor unit receive failure from signal output board E11 Indoor unit 9 Automatic address setting is in progress automatic address E12 Outddor unit 3 setting start is prohibited 3 Indoor unit transmission failure to remote controller E13 gt mes aT F Indoor unit g Group control wiring communication failure E18 5 Indoor unit receive failure from outdoor unit E04 3 8 Indoor unit Indoor unit transmission failure to outdoor unit E05 S Outdoor unit receive failure from indoor unit E06 3 Outdoor unit transmission failure to indoor unit E07 S Automatic address Too few units E15 Operating Timer Wait N l alarm Too many units E16 Oo e amp No indoor unit in automatic address setting E20 Peering Outdoor unit Communication failure between outdoor units for only W MULTI E24 Inconsistencies in number of outdoor units for only W MULTI E26 Incorrect outdoor unit tube connection for only W MULTI E28 Communication failure between units E31 When the water heat exchanger unit is connected in the table above please replace indoor unit with water heat exchanger unit fo
208. perature C Coolant temperature sensor C X Q O e D 2 o oO D 50 60 70 Temperature C Indoor unit intake temperature sensor indoor unit discharge temperature sensor Resistance kQ 20 30 Temperature C Resistance KQ 60 70 80 110 120 130 Temperature C 10 Checks Prior to Automatic Addressing When an outdoor unit alarm is displayed perform the following checks after troubleshooting 1 Yes 2 1 Indoor outdoor power 1 1 Indoor and outdoor units turned on source No Turn on the power 2 Bp sei Yes 2 2 Indoor outdoor control 2 4 Have the inside outside control wires been laid Is there a Wiring and wires break or disconnection of wires No ga connection Was a high voltage 200 V AC etc applied to the control Yes 2 3 2 2 wire circuit Has a fuse on the control board blown N 3 1 Confirmation of each outdoor and indoor unit s 7 There is a problem with the wiring of the power cable and indoor outdoor control wires 2 3 Turn off the power check and repair faulty wiring and then connect all indoor outdoor control wires to the backup control board and controller 3 Does the setting of connected indoor unit count No 10 Yes 3 2 Outdoor settings 3 1 on the outdoor control board match the actual count of connected indoor units No Correct the setting Are the ind
209. pressing the UP S005 key When pressing the DOWN S006 key After entering the setting start operation or setting change operation completed press the SET S007 key for one second TEST WARNING LED off Press the HOME S004 key for one second before confirming setting 0 Propane G31 1 T 2 Natural gas G20 3 Natural gas G25 4 00 to OF DAS D DIALS D mS nic GARIS D DAG DH 6 Refrigerant setting Level 2 Rejection conditions Setting start operation method Setting change operation method F E c1 Example c1 W mamm Setting cancel operation method Setting range Not accepted during indoor operation Press the SET S007 key for one second After entering the setting start operation mode operating the UP S005 and DOWN S006 keys makes it possible to change the setting values TEST WARNING LED light When pressing the UP S005 key When pressing the DOWN S006 key Setting confirm operation method After entering the setting start operation or setting change operation completed press the SET S007 key for one second TEST WARNING LED off Press the HOME S004 key for one second before confirming setting 00 to 02 0 Not set 1 Normal 2 e lt rm nm ma EI rm nm ca 7 Generator setting L
210. r e For board and Electrical Wiring Diagram see Chapter 6 e Outdoor main board page VI 2 e Outdoor power board page VI 3 e Converter board VI 4 e Indoor control board for DC motor models page VI 5 e Outdoor Unit Electrical Wiring Diagram page VI 6 IV 13 A14 Engine Oil Pressure Switch Error Error detection method e When starting the engine if the oil pressure switch is ON for 6 seconds or more contact closed before complete combustion an error flag is set An abnormal stop results on the first occurrence However if turned OFF the error flag is automatically reset and the starting sequence continues Troubleshooting 1 Can the problem be reproduced when the wire connected to Y 1 2 Wiring 4 1 the oil pressure switch is disconnected Note Avoid allowing SS the disconnected wire from coming into contact with the frame or engine NG e Is the wiring between the outdoor unit s main board connector 2P red CN012 and the oil pressure switch grounded Yes Repair Wiring 1 2 Disconnect the wire between the above mentioned connector and oil pressure switch and measure the resistance between ve Replace the outdoor the wire and the engine unit s main board 2 Disconnect the oil pressure switch from the engine and purge the oil from the oil gallery Oil pressure 2 1 Having done that reconnect the oil pressure switch and start operations If the problem switch occurs
211. r 1 second Forced error LED light Automatic completion Press the SET S005 key for one second when turning off Forced error LED off 15 Heating automatic address setting Level 2 Rejection conditions Setting start operation method Setting change operation method Not accepted during indoor operation Press the SET S007 key for one second TEST WARNING LED light Automatic completion Press the SET S007 key for one second when turning off TEST WARNING LED off Automatic address setting status is successively displayed as shown below The meaning of the numbers is as follows 0 Automatic address start setup HA a a 1 Indoor unit automatic address setup wait HA 2 Engine operation in progress H Hd d 3 Indoor unit checking in progress WA 4 Address setting in progress Ald 4 5 Setting complete H Hd 5 16 Cooling automatic address setting Level 2 Rejection conditions Setting start operation method Setting change operation method Not accepted during indoor operation Press the SET S007 key for one second TEST WARNING LED light Automatic completion Press the SET S007 key for one second when turning off TEST WARNING LED off Automatic address setting status is successively displayed as shown below The meaning of the numbers is as follows 0 Automatic address start setup 1 Indoor unit automatic addres
212. r DC Fan Error DC fan motor model Only sic icccctesctesccscteesstheccese lesa tenes IV 89 P13 Refrigerant circuit Error CEET E IV 90 P13 Refrigerant Circuit Error BWAY ssssessssesssesssssssrrrrsssseeerrrrrtttteettrrrrrrnsnssrtnnnnnnnsnsteennn IV 91 P15 Complete Refrigerant Gas Depnletton IV 93 P18 Bypass Ed IV 94 P19 Four way Valve Lock Error not detected 3WAY MUUTI IV 95 P20 Refrigerant Migh Pressure Biron siainen a a IV 96 P22 O tdoor Unit Fan E IV 101 P23 Water Heat Exchanger Unit Interlock Error for only water heat exchanger unit IV 102 P26 Clutch Connection Error ee AE IV 103 P30 Group Control s Sub Unit Error warning displayed only on system controller IV 104 P31 Group Control Emor EE IV 105 lk OllChange Kier EE IV 106 Referenc tree eege deeg deen a ad daa eege V 1 1 Outdoor Main Board Replacement Sequence and Remote Controller Service Function V 1 2 Switch and NR SE V 3 3 Display Component Specifications cccccceeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeees V 5 4 Operation Unit Specifications ccccessseeeeeeeeeeeeeeeeeeeeeeeeeeeseesessesssceeeeeeees V 6 5 Normal Display Leed cctsisc sizes ate eege EEN V 7 6 0 7 5 See ee ee ee enone roe ee V 9 8 Ignition Timing Check and Adjustment sssssssssssnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn V 43 9 Thermistor characteristic graph se cccicin cececnceticest ce neetccenexeteceeeceetestteceeeetenec
213. r board for procedure on replacing indoor non volatile memory EEPROM and replacing indoor control board In systems that link wiring systems where a water heat exchanger unit is connected the state of hot and cold water may output an Automatic Address Setting Warning Should this happen remove link wiring and set a different address IV 50 2 When the water heat exchanger unit is connected Error detection method An error may be assumed when the outdoor unit s connection setting on the indoor unit is incorrect and when an error exists in the connected equipment or when an error exists because the power has not been switched on etc The number of indoor units connected must be set at two on the outdoor unit when a water heat exchanger unit is connected e The setting for number of indoor units connected is set at three or more on the outdoor unit e The power to the connected water heat exchanger unit has not been switched on e High voltage AC200V etc has been applied to the indoor outdoor operation wiring circuit Troubleshooting 1 4 1 S the power to the water heat exchanger unit s switched Yes Switch on the power Power supply off No 2 1 2 5 1 8 the indoor outdoor operation wiring severed or short Yes Repair Wiring Indoor outdoor circuited No 2 2 operation wiring 2 2 e high voltage AC200V etc being applied to the indoor Yes 4 1 outdoor opera
214. r models For board and Electrical Wiring Diagram see Chapter 6 e Outdoor main board page VI 2 e Outdoor power board page VI 3 e Converter board VI 4 e Indoor control board for DC motor models page VI 5 e Outdoor Unit Electrical Wiring Diagram page VI 6 See instructions packaged with servicing indoor board for procedure on replacing indoor control board 2 When the water heat exchange unit is connected Error detection method An error may be assumed when communication response from the water heat exchanger unit is not received by the outdoor unit for 3 minutes e When power is not being supplied to the water heat exchanger unit e When the outdoor unit address set for the water heat exchanger unit and the outdoor unit do not match up e When an error occurs with the indoor outdoor operation wiring short circuit severed wires ground e When electrical voltage is applied to the indoor outdoor operation wiring e When affected by noise e When the water heat exchanger unit s control board or peripheral equipment is defective Troubleshooting Is electricity being supplied to the water heat exchanger Yes 21 Unit power 1 1 nit supply No Switch on the power 2 Yes 3 1 Settin SC 21 Do the address settings for the water heat exchanger unit Make sure the water and outdoor unit match up No Neat exchanger SW14 and the outdoor unit setting match up Iv 41
215. r the alarm Note Some items are not indicated depending model II N l D D os Flashing Lit Off Detection Item Warning Wireless Remote Control Device Display Lamp Display Checked Indoor heat exchanger inlet temperature 1 sensor error E1 FO Operating Timer Wait Indoor heat exchanger outlet temperature F03 Ind it Indoor unit sensor sensor error E3 ae 5 D ndoor uni errors iti d NA Indoor unit intake temperature sensor F10 Ate ege error Indoor unit discharge temperature sensor F11 error Compressor outlet temperature sensor F04 error y Outdoor heat exchanger inlet temperature F06 D sensor error 9 S Operating Timer Wait a Outside air temperature sensor error F08 i 3 Compressor inlet temperature sensor F12 SE L O m error L ele Outdoor unit sensor Coolant temperature sensor error F13 GR Outdoor unit errors Compressor inlet outlet pressure sensor F16 error Hot water outlet temperature sensor error F17 for only models that discharge hot water Exhaust gas temperature sensor error F18 Clutch coil temperature sensor error F20 Operating Timer Wait Temperature sensor error for oil level vy measurement for only W MULTI nee te Compressor oil depletion error for only W MULTI H07 Flashing Operating Timer Wait ZS l a NX l 4 Indoor nonvolatile memory EEPROM error 1 F29 ye ees I
216. rd cannot be written Troubleshooting 1 4 1 8 the nonvolatile memory on the outdoor main board correctly Yes 1 2 Nonvolatile oriented in the IC socket and inserted firmly No Repair memory Turn OFF the outdoor unit then turn ON and observe If Yes Defective EEPROM 1 2 the error recurs replace nonvolatile memory provided with Replace indoor control service board Does this eliminate the error No board e Fora procedure on replacing non volatile memory EEPROM and an outdoor main board see 5 Reference Document e For board and Electrical Wiring Diagram see Chapter 6 e Outdoor main board page VI 2 e Outdoor power board page VI 3 e Converter board VI 4 e Indoor control board for DC motor models page VI 5 e Outdoor Unit Electrical Wiring Diagram page VI 6 IV 65 H07 Compressor Oil Depletion Error for only W MULTI Error detection method Each outdoor unit is inspected for lack of oil and when the oil level is 0 insufficient for 20 minutes the engine stops e An H07 failure is assumed when the engine has stopped due to insufficient oil a total of 8 times e This cumulative count clears when the oil level becomes 1 normal or 2 sufficient Troubleshooting 1 Is the cooler being operated when the outside temperature Yes 1 2 Gas shut off is 5 C or less or is there any evidence of this If
217. re circuit Troubleshooting 1 Turn power ON and wait Yes Power 1 1 Is was the outdoor unit power OFF 3 minutes supply No 1 2 Yes Turn power ON 1 2 _ Is the indoor unit power OFF No 2 1 2 2 4 ndoor outdoor operation wiring broken or short circuited Yes Repair wiring Indoor See 5 Reference Document No 2 2 outdoor PT operation 2 2 With link wiring is the outdoor main board terminal resistor Yes Set only one unit to ON wiring switch S010 set to ON for several units No 2 3 2 3 High voltage AC200V etc applied across indoor outdoor Yes 3 2 operation wire circuit No 3 1 3 3 1 Did the number of indoor units increase or decrease after Yes 3 2 Indoor unit auto addressing No 3 3 count 3 2 Perform pre check before auto addressing See 5 Reference Document In the remote controller detailed settings mode check the Yes 3 2 3 3 indoor unit address item code 13 Any undetermined 99 or duplicated addresses for indoor units No 4 1 4 4 1 S the inspection pin CNO62 CNO71 or TEST pin CN064 on Yes Eliminate short circuit Indoor the indoor control board short circuited No 4 2 control board 4 2 Ile an option board CN060 or wireless remote controller Yes 4 3 CN041 connected to the indoor control board No 4 5 Does E04 disappear several minutes after disconnecting said Yes 4 4 4 3 connector on the indoor control board
218. red memory clear Outdoor unit model display menu item No 03 a4 E ror cucu cn CD LD CH CO Undetermined 45 0kW models 2WAY W MULTI 3WAY MULTI 56 0kW models 2WAY W MULTI 3WAY MULTI 71 0kW models 2WAY W MULTI 3WAY MULTI 85 0kW models 2WAY MULTI IV 74 L13 Indoor Unit Model Type Setting Failure Error detection method Errors are determined when the types capacity levels and models that cannot be connected have not been set e When the water heat exchanger unit and an indoor unit other than a water heat exchanger unit have been connected together within the same cooling system e When a cooling coil and an indoor unit other than a cooling coil have been connected together within the same cooling system Note The term connected together as used above means connected in combination from an electrical point of view Consequently even if the refrigerant tubes are in a different system they are assumed to be connected when indoor and outdoor operation wiring is linked and they share the same system address If this combination represents models that cannot be used in combination as explained above an error will be triggered e When the indoor unit type has been mistakenly set in the remote controller s advanced mode Troubleshooting 1 Indoor outdoor unit check Yes 1 2 1 1 Is the connected unit a water heat exchanger unit N 14 Oo 4 2 S a unit o
219. remote controller Remote controller Indoor unit Indoor unit Indoor unit No remote controller i Group control Figure 3 Remote controller p LA At least 2 m apart 2 In 1 if there are more than 17 branches reduce the number of branch locations Figure 4 lt Example gt Putting 2 refrigerant systems to 1 wiring system Outdoor unit 1 Controller Indoor unit Indoor unit Indoor unit Outdoor unit 2 3 J ee Remote controller Indoor unit Indoor unit Indoor unit gt Outdoor unit3 4 No remote controller Remote controller ndoor uni 7 unit Indoor unit PT unit 4 eg remote controller Remote controller Group control Indoor unit indoor unit Indoor unit Outdoor unit5 gt gt No remote controller Remote controller Indoor unt Indoor unit Indoor unit No remote controller Remote controller Group control Figure 4 V 60 3 Wiring without branching Figure 5 Column Part of indoor wiring branches Outdoor unit If this portion is 1 m or less it is not considered a branch Indoor unit unit Indoor unit Outdoor unit i uni Remote controller Controller indoor unit unit Indoor unit unit indoor unit NW ta No remote controller Figure 5 Remote controller 4 Star system is prohibited Figure 6 Indoor unit Indoor unit Indoor unit Controller Do not connec
220. ring became broken or misrouted Broken indoor and outdoor operating wiring to central control equipment Only sub remote controller is set No remote controller with central control equipment power OFF No remote controller and only sub remote controller is set 2 When the water heat exchanger unit is connected An error may be assumed when communication from the remote controller is not received by the water heat exchanger unit for 3 minutes When power is not being supplied to the remote controller When the parallel array address has not been set or is incorrectly set When the terminal resistor has not been set or is incorrectly set When the remote control wire is severed short circuited has a ground fault or the wrong polarity When a source of noise is located nearby When the remote controller or peripheral equipment is defective Troubleshooting 1 When the indoor unit is connected 1 Central control equipment 1 2 Yes 1 2 1 1 Is central control equipment connected No 2 1 Yes Turn power ON Is the central control equipment power OFF No 1 3 4 3 Are all the central control main sub switches on the connected Yes 1 4 central control equipment set to sub No 1 5 Of the connected central control equipment set only the highest ranking central control unit 1 4 to main and set the remaining units to sub Ranking order from high to low AMY adapter int
221. ris visual inspection No 2 2 unit s heat exchanger Yes Revise check 2 2 _ Is there an air shortage installation No 2 3 Yes 12 1 2 3 Is the fan on the outdoor unit operating Refer to section No P22 3 Are there any crushed tubes torn strainers closed servicing Yes Repair Tubing 3 1 valves or other problems Check the temperature of the indoor unit s coil No 4 1 4 Proceed to 5 1 when the Unit check a indoor unit is connected Which is connected an indoor unit or a water heat exchanger 4 1 unit Proceed to 8 1 when the water heat exchanger unit is connected 5 oor A Yes Clean the filter Indoor 5 1 Is the air filter on the indoor unit clogged Ne Se unit s heat V Ee es exchanger 5 2 Is the fan on the indoor unit operating check No Repair 6 Check the indoor unit s motor operated valve Does the valve Yes 7 1 Indoor unit s 6 1 open Check the indoor unit s heat exchanger temperature motor when in the heating mode No 6 2 operated Yes 6 3 valve check Check the indoor unit s control board Is there any voltage 6 2 between No 5 and No 1 4 of the indoor unit s control Replace the board PMV6P white CN082 when the power is switched on N indoor unit s control board Replace the Check the motor operated valve coil Does a resistance of Yes valve 6 3 approximately 46 Q exist between No 5 and No 1 4 of the motor operated valve connector 5P white or 6P white No R
222. roblem in refrigeration circuit e Clog in refrigeration circuit faulty 4 way valve faulty electric valve in indoor outdoor unit compression failure or shortage of refrigerant e Shutoff valve not completely open 2 Other e Insufficient refrigerant tubing insulation Heating on standby does not clear e Warm air is striking the room temperature sensor temperature around room temperature sensor is high faulty indoor control board Auto flap does not move well 1 The flaps swing but wind direction cannot be set e Auto flap limit switch is faulty or has a bad connection 2 Does not move swing air direction setting e Auto flap is faulty indoor control board is failed remote controller is faulty Loud operation noise or vibration noise 1 Noise or vibration when fan operates e Fan is unbalanced worn motor axis bearing loose fan securing screw 2 Loud operation noise or vibration noise when compressor operates e Something is coming into contact with the refrigerant tubing or compressor Water leakage 1 Drain water leakage e Clogged drain tube mistake in draintube construction insufficient draintube insulation 2 Condensation on refrigerant tubing e Insufficient tubing insulation 3 Condensation at duct outlet e Insufficient wind capacity gap between duct connections Does not stop e Fused magnetic contactors faulty indoor outdoor control board faulty remote controller No display on the remote controller e Remote con
223. roller Units Set Error detection method An error is determined when multiple main remote controllers exist within a remote controller group e Forgot to set a remote controller sub when controlling with two remote controllers e Forgot to set a remote controller sub when controlling with a wireless remote controller and a wired remote controller Troubleshooting 1 Remote 1 1 Set one of the two remote controllers to Sub controller e For board and Electrical Wiring Diagram see Chapter 6 e Outdoor main board page VI 2 e Outdoor power board page VI 3 e Converter board VI 4 e Indoor control board for DC motor models page VI 5 e Outdoor Unit Electrical Wiring Diagram page VI 6 e 1 1 Sub remote setup procedure E type Hold down the and buttons for 4 seconds or more rr Di rr DD Setup an item code i and setup data 2I i appears on the remote controller LCD Use the e li A buttons to switch to DDDD setup data Press the button the setting is completed when flashing changes to steady light Wired remote controller B type Wireless remote controller Press the button to return to normal remote controller display Remote controller address Remote controller main C Remote controller sub L Main OFF Sub ON Remote controller address connector IV 46 E11 Indoor Unit Receive Failure from Signal Output Board Ca
224. rter power Yes 1 3 1 2 source to measure the current during cranking Was the current 5A or more No 2 1 Replace outdoor main Is there a voltage of AC 0 5V or more between outdoor main Yes board 1 3 board connector 3P yellow CN063 No 1 and No 3 during cranking No Replace current sensor 1 2 Yes Repair wiring Starter 21 Broken wire or poor contact in wiring for R and T phases of power starter power source No Replace starter power source source e For work procedure for replacing outdoor main board see 5 Reference Document e For board and Electrical Wiring Diagram see Chapter 6 e Outdoor main board page VI 2 e Outdoor power board page VI 3 e Converter board VI 4 e Indoor control board for DC motor models page VI 5 e Outdoor Unit Electrical Wiring Diagram page VI 6 Reference Electrical Wiring Diagram C D 1 2 IV 17 A19 Low Coolant Temperature Error detection method e Ifthe temperature of the coolant does not exceed 60 C during engine operations complete combustion the engine will be momentarily halted The time varies between 30 to 60 minutes depending on the temperature An emergency shutdown will occur when the engine has been halted twice because of this error The cumulative number of times will be reset when the coolant maintains a temperature of 60 C or more or exceeds 85 C Troubleshooting 1 Disconnect relay connector 2P 12 green on th
225. s Data display example Outdoor unit data From this point is data Data code Indoor unit data From the second point is data Up to the second point is the data code Up to the first point is the indoor unit number 4 Forced Setting Release Pressing the SET S007 key in the normally displayed status for one second causes all forced set items to be canceled 5 Data setting operation Level 2 Setting start operation method Setting change operation method Setting confirm operation method Setting cancel operation method Press the SET S007 key for one second in the setting data code select mode This activates the forced setting in progress display TEST WARNING LED light After entering the setting start operation mode operating the UP S005 and DOWN S006 keys make it possible to change the setting details of the selected setting categories After entering the setting start operation or setting change operation completed press the SET S007 key for one second This cancels the forced setting in progress display making it possible to once again enter setting item selection operation mode TEST WARNING LED off Press the HOME S004 key for one second before confirming setting This returns operation to normal TEST WARNING LED off The setting details will not change when pressing the HOME S004 key for one second during setting item select operation Data setting operatio
226. s 4 4 adjustment 4 2 valve coil terminals during cranking valve See 4 4 for gas type C models No 4 3 Are there any poor wiring connections crimping or severed wires Yes Repair Wiring 4 3 between the fuel gas solenoid valve relay connector 4P 1 white and the solenoid valve No 4 4 Are fuel gas solenoid valve operations malfunctioning OK 4 5 4 4 Check for coil breakage foreign matter fuel gas passage blockages NG Repair etc or replace 4 5 Are the throttle step motor and fuel gas regulating valves operating OK 5 1 normally NG Replace 5 i OK 5 3 Engine 5 1 Measure compression NG 52 A d OK 5 3 5 2 Check 6 1 again after washing the valve and adjusting the valve clearance Any problem with compression NG GE engine ea e i i OK 5 4 5 3 Is the air cleaner soiled Visual inspection NG Clean replace NEEN Yes 6 1 5 4 Has the ignition timing been adjusted No Adjust 6 Is 180V DC being applied between the outdoor unit s power board Yes 6 2 Solenoid 6 1 connector 7P white CN041 pin 1 and pin 3 and between pin 5 valve wiring and pin 7 during cranking No 6 3 circuit board Are there any poor connections contacts crimping or severed wires Yes Repair Wiring 6 2 between the outdoor unit s power board connector 7P white CN041 and the fuel gas solenoid valve relay connector 4P 1 white No 6 3 Replace the e a 1S 200V AC being applied between the outdoor unit s power b
227. s 2 alo o m3 Eifel fl pad Es ech cle D 1 of vlalololololo oa D I c i D o gt sl gt gt gt gt gt fone PA lala o H YMN NIN L Nisje Scl e EO i e Galles a o lt oj u o a o g ll ill ISO lach vi cl v o o H LH be KEE WEEN WEN Ajo NI c a gt 3 3 E es i elslseslslslst lien i S alo 5 alzals 1 o Dip 109 109 109 OO JL LUTON LOIN e OY ojoj om Se Gite So Ea Be e 334 Hefe JAA D Uo OSa o aj s e o o M o o WE ec 23 Jr BE o cllk IC al olojo fol fol Lola i LHM wegl gt AH AH E Na o jo ojo jojol om SoN N 42Sa 3 aajn c olole clo H Soa gt 0 NYS Ale NUD Di Opu w j a Le j u I JO MZ INN IO OL e EE s e D eE a s H o pa E VE sie LJ x Sf jo WD o a oe oola oj E gt ja e i z is ara SZ LHM KS LHM azma a ojojolojojoja r r L IN DINIAa gt gt No o cjo jo o oom E onsen jolslo c i SR WE m i DTO PhS Nag Hg Nes T Se EE EE ala E E El ele Ee A z z e 25 al jajalelelelelelelelete efelalelelely 2 zlslslzkoizl Ielcislzizis H Ps w ejcjaj j I 22 5 m a n oo air elel ofalo olole olo s i 22 E 134 efe J34 ae ui II a a Elp 4 E abel r st IN elsl ol al oaloloa Gees Wer AYD L2 AYD ae SE 2 II ole ole lolole lr alal a beeen al a E i Z 22 gt vug Hole ng ve SoM El olol of of alc al elole lt ols Jelelol Sates LHM lk
228. s setup wait 2 Engine operation in progress 3 Indoor unit checking in progress 4 Address setting in progress 5 Setting complete F F LA H F JA rv rv rv rv oo oo oo oo oo um ais rus fE rv V 41 Date Display No 11 Level 0 lt n D H gt Display of the current date Key operation is used to display the time and set the date 1 Date display Level 0 Displays the date Example Z 2 Date display Level 1 In the date display mode pressing the SET S007 key activates the next display In this state pressing the UP S005 and DOWN S006 keys toggles between the dates and time displays Example April 1 2012 Example Example April 1 2012 Display Function DOWN ilal l lE i Date display JUP Gy Time display 3 Clock setting Level 2 In the date display or time display mode pressing the SET S007 key for one second or more activates the clock setting function Example Z Example Year 2012 Item Data Display Remarks name examples 1 Year I ie 2012 2 Month ITT 84 April 3 Day elt 1 A Hour TE 11 00 a m 5 Minutes 06 6 min Each time the SET S007 key is pressed the set items is confirmed and the set item moves to t
229. ster VA1 grounded or severely deteriorated VA1 No 6 3 Proceed to 6 4 after Yes having confirmed that 6 3 Is the power switch SW1 on the wiring is normal around SW1 No Set SW1 to ON Are suitable DC voltages being applied to CN1 6P 1 Yes 6 8 6 4 Suitable DC voltage approximately 5V between TP1 and 2 approximately 7V between TP3 and 4 and No 6 5 approximately 5V between TP5 and 6 IV 42 6 Water heat exchange unit s control board and surrounding area Replace the varister 6 5 Is the varister VA2 short circuited between the phases or Yes VA2 severely deteriorated No 6 6 Yes 6 7 Is electrical voltage being output to the secondary side of Check that the wiring 6 6 the fuses F1 F2 No and terminals around the fuses are normal and replace the fuses Yes 6 8 ez S electrical voltage being output to the secondary side of Check that the wiring the noise filter RF1 No and terminals around RF1 are normal and replace the RF1 Replace the water heat Yes exchanger unit s control board 6 8 Is electrical voltage being output to the secondary side of the power transformer PT1 Check that the wiring No and connectors around PT1 are normal and replace the PT1 e See 5 Reference Document for details on the procedure for replacing the water heat exchanger unit s control board e For board and Electrical Wiring Diagram s
230. stor temperature sensor characteristics When the coolant temperature sensor relay connector has been reconnected display the coolant temperature No OK 3 4 3 2 OdAtA data code 20 on the 7 segment LED on the outdoor unit s main board Compare this to the actual temperature NG 3 3 measured on the surface Replace the outdoor 3 3 Is there any water etc on relay connector 2P 12 green K unit s main board NG Repair OK Replace the outdoor Is the exhaust heat collection valve locked closed during unit s main board 3 4 heating operations Replace the exhaust This does not need to be checked if A20 occurred in the heat collection valve cooling mode NG motor operated valve ASSY e For work procedure for replacing outdoor main board see 5 Reference Document e For board and Electrical Wiring Diagram see Chapter 6 e Outdoor main board page VI 2 e Outdoor power board page VI 3 e Converter board VI 4 e Indoor control board for DC motor models page VI 5 e Outdoor Unit Electrical Wiring Diagram page VI 6 Reference Electrical Wiring Diagrams A B 3 coolant pump Electrical Wiring Diagrams D E sensor e 2 1 Three way electric coolant valve inspection 1 Operate the engine in the cooling mode and measure the surface temperature of tubing flowing to the 2F outdoor heat exchanger 2 Confirm that the coolant temperature is rising and that the coolant is flowi
231. sued by another unit during auto addressing Wait until current auto addressing is complete IV 48 E13 Indoor Unit Transmission Failure to Remote controller Error detection method When a signal transmitted from the indoor unit water heat exchanger unit to the remote controller cannot be self received an error is determined e Indoor unit water heat exchanger unit control board is defective e Short circuit or broken wires in remote controller wiring 1 white and 2 black with indoor unit connected Troubleshooting 1 Indoor unit 2 1 Equipment 1 1 What units are connected Water heat exchanger check unit 3 1 2 2 4 Are remote controller wires 1 white or 2 black short Yes Repair Wiring Indoor unit s circuited or severed No 2 2 control board 2 2 Replace the indoor unit s control board 3 3 1 Are remote controller wires TB5 4 or TB 5 5 short Yes Repair Wiring Water heat circuited or miss wired No 3 2 exchange unit s control board 3 2 Replace the water heat exchanger unit s control board e See instructions packaged with servicing indoor board for procedure on replacing indoor control board e See 5 Reference Document for details on the procedure for replacing the water heat exchanger unit s control board IV 49 E15 Automatic Address Alarm Too Few Units 1 When the indoor unit is connected Error detection method
232. t lt Step 1 gt gt On the outdoor main board of the target outdoor unit set the STOP switch S001 to STOP 1 lt lt Step 2 gt gt After confirming that the engine of the target outdoor unit is stopped close the valves of refrigerant gas tube refrigerant gas liquid tube and balance tube lt lt Step 3 gt gt On the outdoor main board of the target outdoor unit set the STOP switch S001 to STOP Wait for three minutes or more and then turn off the circuit breaker of the target outdoor unit 2 Start maintenance work 1 Sometimes all outdoor units may stop If there is operation input outdoor units other than the target one will start operation again after approximately five minutes For details on the settings see the next item 2 Always carry out the following three tasks Check to make sure lt lt Step 2 gt gt is finished If the shutoff valve is opened refrigerant will flow from the other outdoor unit to the target outdoor unit causing serious malfunction After three minutes has elapsed from completion of lt lt Step 1 gt gt check to make sure the outdoor main board displays P oa E E and then perform this operation If you turn off the power immediately after performing STOP setting the entire system will stop Backup operation cannot be performed If this happens see System recovery procedure recover the system and then start over again starting from lt lt Step 1 gt
233. t more than 3 cables to a Figure 6 single branch point Outdoor unit 5 Branches after branching branching of location that cannot be branched in a single stroke are prohibited Figure 7 Outdoor unit Controller Outdoor unit Remote controller ote controller Indoor unit gt Outdoor unit Remote controller No remote controller Group control Indoor unit Indoor unit Indoor unit No remote controller Group control Figure 7 Remote controller V 61 6 Loop wiring is prohibited Figure 8 Example As shown in the figure do not have wiring where part of it is looped or the entire wiring is looped Outdoor unit Controller Outdoor unit Indoor unit Indoor unit Indoor unit Remote controller Indoor unit o 2 Indoor unit Remote controller Indoor unit Outdoor unit Note indicates the looped portion Indoor unit Ne unit Indoor unit unit No remote controller Remote controller Group control Figure 8 7 Daisy chain system Figure 9 Outdoor unit Controller Indoor unit Indoor unit Indoor unit Figure 9 Remote controller V 62 6 Outdoor Unit Electrical Wiring Diagram lt Reading the board and wiring diagram gt Example When referring to Electrical wiring diagram A 3 look at the area around the frame in the following diagram
234. ter board VI 4 e Indoor control board for DC motor models page VI 5 e Outdoor Unit Electrical Wiring Diagram page VI 6 IV 39 E05 Indoor Unit Transmission Failure to Outdoor Unit Error detection method When a self transmitted signal cannot be self received an error is determined e Indoor water heat exchanger unit control board is defective e Outdoor main board terminal resistor switch setting is incorrect Troubleshooting 1 4 1 8 the indoor outdoor operation wiring connected to Yes 1 2 Indoor control multiple outdoor units Link wiring No 1 3 board 4 2 S the S010 terminal resistor switch on one outdoor main Yes 1 4 board set to ON and the remainder to OFF No Set only one unit to ON Is the outdoor main board S010 terminal resistor switch Yes Set to ON 1 3 set to OFF No 1 4 Yes Repair wiring 1 4 Indoor outdoor operation wiring broken or short circuited No 1 5 1 5 Replace indoor water heat exchanger unit control board e See instructions packaged with servicing indoor board for procedure on replacing indoor control board e See 5 Reference Document for details on the procedure for replacing the water heat exchanger unit s control board IV 40 E06 Outdoor Unit Receive Failure from Indoor Unit 1 When the indoor unit is connected Error detection method An error is determined when no indo
235. termine with indoor coil unit tubing temperature Inspect outdoor No f unit tubing 4 Adjust outdoor solenoid valves Use trial operation mode Inspect to check that the solenoid valves operate normally in Yes Replace outdoor outdoor each operating mode cooling heating and measure main board solenoid 4 1 tube temperature around solenoid valves to assess For valves For information on solenoid valve operation in each operating three way mode see the sections Control functions Operating control No 4 2 device in the Outdoor unit manual Does the solenoid valve operate normally Adjust the power board Yes 4 3 4 2 Does the power board CN013 output the solenoid power Replace power supply voltage AC 200V Ne board 4 3 Any poor connection and broken wires in wiring between the Yes Repair wiring power board and the relay board No 4 4 Adjust the outdoor main board In No 4 test mode when Tv open valve open is there a drive output voltage 12 V DC from discharge valves 1 1 1 2 discharge valve 2 suction valve 2 1 and 2 2 Yes 4 5 9P white CN018 Discharge valve 1 1 1 2 between No 3 9 Discharge valve 2 4 4 between No 4 9 Suction valve 2 1 2 2 between No 6 9 Does suction valve 1 output a drive voltage DC 12V during cooling operation No Replace outdoor Suction valve 1 between No 3 9 main board Note that suction valve 1 closes when powered the other valves operate in the opposite way 4 5 Any poor connect
236. th the built in indoor units control boards i S remote controller s advanced settings The remote control group wiring is severed or short 4 circuited between the two built in indoor units control Repair the wiring boards 5 One of the two built in indoor units control boards is If there is no problem with the power supply etc malfunctioning replace the board It is necessary for only one indoor unit to be connected to the outdoor unit to which a double duct model is connected 2 A group has been established between the two indoor boards in the indoor unit so groups cannot be set for other indoor units IV 76 L16 Faulty Water Heat Exchanger Unit Settings Only detected when the water heat exchanger unit is connected Re check the settings if it is not the relevant model Error detection method An error is determined in accordance with the criteria shown below the first time the settings on the water heat exchanger unit s control board are incorrect e When the temperature during heating with SW4 and 5 is outside of the temperature setting e When the temperature during cooling water with SWI to 3 is outside of the temperature setting e When the temperature during cooling brine with SW1 to 3 is outside of the temperature setting e When the setting for the anti icing control switch with SW8 1 is incorrect Troubleshooting 1 Yes 2 1 pena nie 1 1 Are the settings
237. th the pressure sensor being ignored The forced setting in progress message will be cleared the TEST WARNING LED will be extinguished and the display will return to the forced setting selection operation Forced fuel gas solenoid valve closing Level 2 Display Rejection conditions Operating method Operation details Releasing method G FAS olFIF None Press the SET S007 key for one second when forced fuel gas electric valve closing is not being set TEST WARNING LED light Fuel gas electric valvel is blocked Forced setting in progress display TEST WARNING LED light is shown during this time Press the SET S007 key for one second or more when forced fuel gas electric valve closing is being set The forced setting in progress display will be canceled at this time returning to forced setting select operation TEST WARNING LED off 15 Forced cranking mode Level 2 Used when measuring engine compression Display Rejection conditions Operation method Operation details Release method Sete ain During total stop Press the SET key for one second without the forced cranking mode being set The TEST WARNING LED will be illuminated Operations will be halted automatically when the engine is operating Uses the DOWN and UP keys to implement cranking after the engine has been halted The engine s maximum revolution speed w
238. the SET S007 key for one second while forced heating test run is not set TEST WARNING LED light Operation details Forced setting in progress display TEST WARNING LED light is shown during this time Releasing method Push the SET S007 key for 1 second during forced cooling heating operation The forced setting used in forced heating test run will be canceled at this time TEST WARNING LED off 5 Force valve opening setting Level 2 Used for evacuation etc Display Rejection conditions Operating method Operation details Releasing method gt Uf eiis Forced cooling test run in progress forced heating test run in progress bypass valve being closed Press the SET S007 key for one second while forced valve opening is not set TEST WARNING LED light Indoor unit electric valve outdoor unit electric valve 1 outdoor unit electric valve 2 liquid valve and bypass valve fully open Forced setting in progress display TEST WARNING LED light is shown during this time Press the SET S007 key for one second in forced valve open setting mode The forced setting in progress display will be canceled at this time returning to forced setting select operation TEST WARNING LED off 6 Force water circuit setting Level 2 Used for cooling water system air discharging etc Display Rejection conditions Press the SET S007 key for one second wh
239. the following rotating parts for locking See Periodic Inspection and Parts Replacement Manual for installing and removing compressor drive belt 2 Yes 3 1 Compressor 2 1 Rotates by hand with some resistance No Replace compressor 3 Temporarily remove ignition plugs from all cylinders Engine Can the engine crank be rotated To rotate the crankshaft follow the procedure in the 3 1 ner 8 Periodic Inspection and Parts Replacement Manual Replace engine if the engine crankshaft does not rotate e For board and Electrical Wiring Diagram see Chapter 6 e Outdoor main board page VI 2 e Outdoor power board page VI 3 e Converter board VI 4 e Indoor control board for DC motor models page VI 5 e Outdoor Unit Electrical Wiring Diagram page VI 6 IV 16 A17 CT Error Starter Current Detection Failure Error detection method When the starter power primary current meets the following conditions an error is determined upon 5 occurrences in 1 hour e During cranking With no detection of starter current and with revolution speed pulse detected when 5 seconds pass during cranking or when engine attains complete combustion Troubleshooting 1 4 1 Does the wiring from the starter power source magnet switch Yes 1 2 GN 52S terminal No 1 pass through CT1 current sensor No Repair wiring Current sensor 1 Use a clamp meter on the R phase wiring of the sta
240. the noise filter RF1 No and terminals around RF1 are normal and replace the RF1 Replace the water heat Yes exchanger unit s control board 6 8 Is electrical voltage being output to the secondary side of Se the power transformer PT1 Check that the wiring No and connectors around PT1 are normal and replace the PT1 e See 5 Reference Document for details on the procedure for replacing the water heat exchanger unit s control board e For board and Electrical Wiring Diagram see Chapter 6 e Outdoor main board page VI 2 e Outdoor power board page VI 3 e Converter board VI 4 e Indoor control board for DC motor models page VI 5 e Outdoor Unit Electrical Wiring Diagram page VI 6 IV 32 E02 Remote Controller Transmission Failure Error detection method When the remote controller controller itself cannot transmit Or when a self transmitted signal cannot be selfreceived or changes an error is determined e Breakdown of remote controller itself Troubleshooting 1 D Yes 1 2 Remote 1 1 Is this indoor unit group controlled oa Oo controller group wiring 4 2 Any short circuit or broken wires for remote controller group link Yes Repair wiring wiring 1 white and 2 black No 2 1 2 5 1 8 an option board CN060 or wireless remote controller CN041 Yes 2 2 Indoor connected to the indoor control board No 2 4 control bo
241. the starter power source s 4 4 terminal and the starter s B terminal or between the starter power source s terminal and engine ground Repair wiring Is DC10V or more applied between the outdoor unit s power board Yes 4 6 4 5 connector CN084 and the outdoor unit s main board connector FG CNO75 when cranking is started No 4 7 Are there any defective wiring connections contacts between the outdoor unit s power board ER connector CN084 and the starter s S terminal Repair wiring Replace the Is DC10V or more applied between the outdoor unit s power board Yes outdoor unit s 4 7 connector CN084 and the outdoor unit s main board connector main board FG CNO75 when the magnet switch is on CES O Are there any defective wiring connections contacts between the outdoor unit s power board ve connector CN084 and the starter power source s terminal Repair wiring e For work procedure for replacing outdoor main board see 5 Reference Document e For board and Electrical Wiring Diagram see Chapter 6 e Outdoor main board page VI 2 e Outdoor power board page VI 3 e Converter board VI 4 e Indoor control board for DC motor models page VI 5 e Outdoor Unit Electrical Wiring Diagram page VI 6 e 3 1 3 5 4 3 4 4 4 6 4 8 ae Kees 20 CC Gel 120 150 190 240 model A06 Engine Start Failure Error detect
242. ther than a water heat exchanger unit connected to Yes 1 3 the system No 1 9 An indoor unit other than a water heat exchanger unit is connected together It is a model that ES cannot be connected so change it to a connectable unit Yes 1 5 1 4 ls the connected indoor unit a cooling coil No 1 7 4 5 e an indoor unit other than a cooling coil connected to the Yes 1 6 system No 1 7 1 6 An indoor unit other than a cooling coil is connected together It is a model that cannot be connected so change it to a connectable unit Check the type setting item code 10 for the indoor unit set 4 7 with the remote controller s advanced mode Does the setting eee match up to the actual indoor unit s type N 1 8 Setting value 32 Cooling coil SV Amend the type setting item code 10 with the remote Yes 1 9 1 8 controller s advanced mode and reset the power supply for No End the outdoor unit Is the alarm triggered again 1 9 There is a chance that the actual piping connections do not match up with the unit s address setting Check the status of the indoor and outdoor unit connections and set the address correctly with the remote controller s advanced mode if there is a problem If no problem can be found or the problem reoccurs after being repaired replace the circuit board e For information on the remote control s advanced settings see Chapter
243. there 1 1 Een valve check is only one outdoor unit this is No regardless of outside temperature NG 21 Yes 2 1 1 2 ls the gas shut off valve optional correctly connected Connect the gas shut off No valve 2 i Yes 2 2 Sensor Is the temperature sensor for measuring the oil level 2 1 correctly installed Must be no disconnected or floating Resecure the i sensors No temperature sensor in place Are the characteristics of the temperature sensor for Yes 2 3 2 2 measuring the oil level normal Temperature sensor Replace the temperature Check the TH11 resistance value No sensor Are the measurement results of the temperature sensor for measuring the oil level valid Yes 3 1 2 3 Compare the No 26 value displayed on No 00 on the outdoor unit s main board temperature measurement for the oil level with the actual temperature measured with a No Replace the outdoor thermometer or other tools unit s main board 3 Operate the outdoor unit and check the temperature of the Regular oil regular oil return circuit Is the temperature rising return circuit Check the temperature at the top of the capillary onthe wes 4 1 check oil return circuit near the temperature sensor for the oil level directly with a thermometer or other tools or check 3 1 the fluctuations in temperature displayed for the oil level on the outdoor unit s main board Although results will differ in accordance with conditions Replace the r
244. ting or the remote controller etc This is possible in both the cooling and heating modes Operation details If the engine is operating when the enforced setting is made operations will be Release method Pressure sensor ignored Level 2 Display Rejection conditions Operating method Operation details Release method temporarily paused The cooling cycle defrosting operations will be performed for ten minutes However if operation signals are not issued by the indoor unit the equipment will go into standby mode without operating The forced setting in progress message will be displayed during this the TEST WARNING LED will be illuminated Press the SET key for one second while the forced defrosting operations are set The forced setting in progress message will be cleared the TEST WARNING LED will be extinguished and the display will return to the forced setting selection operation The setting will be cleared automatically once the defrosting operations have been performed for 10 minutes and when 20 minutes has elapsed since the defrosting settings was made including the standby time d d5 F None Press the SET key for one second The TEST WARNING LED will be illuminated Fix the value of the pressure sensor The forced setting in progress message will be displayed during this the TEST WARNING LED will be illuminated Press the SET key for one second wi
245. tings to 1 generate power IV 29 E01 Remote Controller Receive Failure Error detection method 1 When the indoor unit is connected An error is determined when no incoming communication is received for 3 minutes e When 9 or more indoor units are wired into the remote controller group e When inspection inspection pin or TEST test pin on the indoor control board is short circuited e When the non volatile memory EEPROM is not inserted or has failed upon turning power ON e Indoor control board failure 2 When a water heat exchanger unit is connected An error may be assumed when no communication addressed to you is received for three minutes e When power is not being supplied to the water heat exchanger unit e When the parallel array address has not been set or is incorrectly set e When the terminal resistor has not been set or is incorrectly set e When the remote control wire is severed short circuited has a ground fault or the wrong polarity e When a source of noise is located nearby e When the water heat exchanger unit s control board or peripheral equipment is defective Troubleshooting 1 When the indoor unit is connected 1 e Yes 1 2 Auto address 1 1 ls auto addressing complete Ne as 4 2 Has auto addressing failed warning displayed on outdoor OK 1 3 unit NG 2 1 1 3 Perform pre check before auto a
246. tion error results in this display simply wait for about one second to return to the previous oil change hours display LIL ir e CLr 3 When the CLr display appears release the set key momentarily then quickly press and hold down the set key again When the following display appears the oil change hours are reset to 0 hours When this display does not appear and the previous oil change hours are displayed repeat the process as described above e End IV 4 A03 Engine High Revolution Error Error detection method Engine revolution speed is 45 0 71 0 kw models Engine revolution speed is more than 2 300min continuously for 30 seconds e Engine revolution speed is more than 2 400min continuously for 10 seconds e Engine revolution speed is more than 2 500min continuously for 1 second 85 0 kw models e Engine revolution speed is more than 2 700min continuously for 30 seconds e Engine revolution speed is more than 2 800min continuously for 10 seconds e Engine revolution speed is more than 2 900min continuously for 1 second If any of above conditions occur the engine stops momentarily and an error flag is set An Engine Speed Too High trouble is assumed when the error flag has stopped the engine 5 consecutive times in 1 hour Troubleshooting 1 Yes 2 1 Check 4 1 Measure actual revol
247. tion wiring circuits No 3 1 3 Has the number of connected indoor units set with the Yes 3 2 Water heat 3 1 No 10 parameter on the outdoor unit s main board been Reset the outdoor unit s exchanger unit amended to a figure other than two No power supply count 3 2 Set the number of connected indoor units to two with the No 10 parameter on the outdoor unit s main board 4 Replace the water heat Remote Yes exchanger unit s control controller wires board GE 4 1 Is the water heat exchanger unit s control board 2P 13 already in use Reverse the water heat the remote controller and the water heat exchanger unit No exchanger unit s control board connectors 2P 12 2P 13 e See 5 Reference Document for details on the procedure for replacing the water heat exchanger unit s control board e For board and Electrical Wiring Diagram see Chapter 6 e Outdoor main board page VI 2 e Outdoor power board page VI 3 e Converter board VI 4 e Indoor control board for DC motor models page VI 5 e Outdoor Unit Electrical Wiring Diagram page VI 6 IV 51 E16 Automatic Address Alarm Too Many Units Error detection method An error is determined when the indoor unit count water heat exchanger units responding to transmission exceeds the indoor unit count water heat exchanger units set on the outdoor unit Also detected apart from auto addressing e The actual number of indoor un
248. tor PNL green CN080 and ceiling panel or poor 1 3 connection broken wire between connector PNL green CN080 and short circuit connector Repair e See instructions packaged with servicing indoor board for procedure on replacing indoor control board IV 86 P10 Indoor Unit Float Switch Operation Cannot be detected when the water heat exchanger unit is connected Error detection method e Detects when indoor control board connector FS red CN034 CN030 1 3 are open and determines an error e The sensor connected between No 1 and No 3 of connector FS red CN034 CN030 is normally a drain float switch However some models do not have a drain float switch These models have No 1 and No 3 of connector FS red CN034 CN030 short circuited with a wire e The drain float switch turns the contact OFF when the drain water overflows and the contact turns ON when the water level falls e The connection method and protective devices differ among indoor units For details see the electric circuit diagrams for each indoor unit e Models with built in drain float switch S 22 28 36 45 56 73ML S 28 36 45 56 73MD S 22 28 36 45 56 73 106 140 160MU S 22 28 36 45 56M Y S 73 106 140 224 280ME S 22 28 36 45 56 60 73 90 106 140 160MF S 22 28 36 45 S6MM e Models shipped with connector FS red CN034 CN030 No 1 and No 3 short circuited with a wire Models not listed above Troubleshooting 1
249. troller wiring disconnected e Remote controller wiring shorted H1 2 Remote Controller alarm display N l D D Ci Flashin Lit Off Ee 1 N g Detection lien Warning Wireless Remote Control Device Display Lamp Display Checked Engine oil pressure error A01 Engine oil error A02 Engine high revolution error A03 Engine low revolution error A04 Ignition power source error A05 Engine start failure A06 Fuel gas valve error A07 Engine system error Engine stall A08 High exhaust gas temperature A10 m Engine oil level error A11 a Engine oil presure switch error A14 Operating Timer Wait D Crankshaft angle sensor error A23 W viv viv d Camshaft angle sensor error A24 Li Outdoor unit ZS Flameout error A26 LU __ Simult flashing ba Starter power source output short circuit A15 e Starter system error Starter lock A16 ey CT error starter current detection failure A17 3 Low coolant temperature A19 D High coolant temperature A20 Coolant system error S Coolant level error A21 Coolant pump error A22 Clutch error A25 Catalyst temperature error for only models with catalyst option A27 Generator error for only High Power Multi A28 Converter error for only High Power Multi A29 Remote controller Remote controller receive failure E01 detected an abn
250. ture Aig Low coolant level A dd During coolant circuitry check Fo dD Depending on unequalized pressure Fr tt Low engine oil level Total OFF Display Level 0 Setting the STOP switch S001 to STOP activates total off The normal display at this time is PAUSE examples a D Hiu H o EC During total OFF display when STOP switch input is set to STOP F In the case of W MULTI this display appears after 3 minutes T System OFF Display Level 0 The following display appears during stopped system after system stop command is received However this does not apply during automatic addressing When the system is off all key operations are invalidated other than the Version Display Wltiob Version Display Level 0 During a simultaneous long press of the SET S007 key and DOWN key S006 the following display appears every second DU Main microcomputer version DC microcomputer version Option version D LL E calle ES rm LL m LL E Other displays During a simultaneous long press of the SET S007 key and UP S005 key the following display appears every second Display Remarks examples Display contents Communication collision rate f a L u S E This is only an item name collision rate and usage rate and usage rate item names
251. u ROM ELAY c g TP002 H S me ar D012 2 soiu e Z co erop onm eazy 7579 Beg d Sch a et FR E zeou f ad o P Se os RO w Fiy 7 0803 E ggoy E W8 Lenz 0604 e 2 sp g2 S S Oo ila CNO44 EU FLASH La GENE cnoo VLA gf Sep 3 B 7304 s Bag Ea a 6804 zo and KE ESO 7904 Son 009d ba een Bs Se a B d WHT CND x BLK zeen WHT Noi T GEN DEB SER 2 D of Qo Ei DU LED 4 Indoor control board for DC motor models 1 2 3 380 Ti gt SWT 71 TAM K 0414 U z z P S 8 13 a343 mut mat ee E sesch LM nnno PSAAGIZE e II EE IR e Gi E ow LM FANR 12 11 No Name Position in the diagram 1 EEPROM B 2 2 LED B 2 3 IRC B 3 4 Heat exchanger outlet E3 brown B 2 5 TEST pin CN2 B 2 6 Heat exchanger inlet E1 red B 2 7 Discharge green BL B 2 8 CHK pin CN5 B 2 9 Room temp intake TA yellow B 2 10 OPTION B 1 11 CN078 DP red B 1 12 CN034 FS red B 1
252. ution speed using a revolution meter Was there revolution high revolution when the error occurred No 4 1 speed ot 2 eee Yes Repair Mixer 2 1 Is the throttle valve locked or sticking No 1341 3 3 1 D th h for ab lly low load cui Compressor 3 oes the compressor have any reason for abnormally low load NG Restore 4 Ignition 4 1 Ignition coil cam angle sensor and crank angle sensor pulse 5 e Any poor connections poor contact or broken wires between Reset the power Wiring throttle step motor wiring and connector Wiring from outdoor Yes after repair wiring 5 1 main board connector 6P black CNO66 to throttle step motor e In the relay part is the wiring for the throttle step motor and fuel N 6 1 regulating valve crossed sl bial 6 Does the throttle step motor coil resistance measure about 1200 Yes 6 2 Mixer 6 1 Disconnect relay connector 6P 1 and measure between No 1 red i and No 2 No 3 and between No 4 orange and No 5 No 6 No Replace mixer Is 4 V DC applied between control board connector 6P black Yes Replace mixer 6 2 CNO66 No 1 and No 2 No 3 as well as between No 4 and No 5 No 6 when turning the power ON during No Replace outdoor positioning main board e For work procedure for replacing outdoor main board see 5 Reference Document e For board and Electrical Wiring Diagram see Chapter 6 e Outdoor main board page VI 2 e Outdoor power board page VI 3
253. variation being in progress control being in progress 16 The engine has stalled during clutch control 46 Engine stall due to special high pressure avoidance control being in progress 17 Momentary stop due to 24 hour continual operations V 15 5 Error Data Display Level 2 During error log code display pressing the SET S007 key for one second or more activates the error data display at that time ru JE Example P 5 Pressing the SET S007 key i i LI Pressing the SET S007 key again for one second or more or when there are no operations for 10 minutes returns to the normal display Example i 2 3 4 5 Pressing the SET S007 key gt Data is displayed by selecting with the UP S005 and DOWN S006 keys Data display example Outdoor unit data Beyond this point is data Data code Indoor unit data Bi tft je ya From the second point is data Up until the second point is data code j Up until the first point are indoor unit numbers Data from 5 10 and 15 seconds before is identified as follows ALG aln From the second point is data Up until the second point is data code f Up until the first point is identification of data R5 b10 and C15 seconds before The data displayed is as
254. verter board VI 4 e Indoor control board for DC motor models page VI 5 e Outdoor Unit Electrical Wiring Diagram page VI 6 IV 44 E08 Duplicated Indoor Unit Address Setting Error detection method An error is determined when the Indoor unit address is duplicated e Inthe remote controller detailed settings mode the indoor address setting is duplicated e Several indoor units with no indoor unit address setting have the DISP pin CN063 CN072 short circuited Troubleshooting 1 4 1 ebe water heat exchanger unit connected and link wiring Yes Stop using link wiring Link wiring Jin effect No 2 1 2 5 1 s the DISP pin CN063 CN072 on the indoor unit s Yes Eliminate short circuit Indoor unit s control board short circuited No 2 2 control board Perform pre check before auto addressing See 5 Yes 2 3 2 2 Reference Document Does E08 remain after repeating auto addressing No 24 2 3 The non volatile memory EEPROM on the indoor board is defective Replace To change indoor unit address instead of using the remote controller s advanced settings a4 use the remote controller s address change mode e The designation is used in the table to indicate indoor boards for DC and AC motor models e See instructions packaged with servicing indoor board for procedure on replacing indoor non volatile memory EEPROM IV 45 E09 Multiple Main Remote Cont
255. wiring N ER wiring o 2 Replace indoor water Check Disconnect the sensor connector and measure the resistance Yes heat exchanger unit temperature 2 1 value Is the resistance between the broken wire detection control board sensor value and the short circuit detection value N Replace temperature o sensor e See instructions packaged with servicing indoor board for procedure on replacing indoor control board e For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board page VI 2 Outdoor power board page VI 3 Converter board VI 4 Indoor control board for DC motor models page VI 5 Outdoor Unit Electrical Wiring Diagram page VI 6 TV 58 2 When the water heat exchanger unit is connected 1 Are there any poor connections contacts crimping or Yes Repair Wiring Wiring 1 1 severed wires or pinched wires in the sensor s connectors or check connector wiring No 2 1 2 Replace the water heat Temperature Disconnect the sensor s connector and measure the Yes exchanger unit s control sensor 2 1 resistance Is the resistance between the broken wire board check detection value and the short circuit detection value No Replace the temperature sensor e See 5 Reference Document for details on the procedure for replacing the water heat exchanger unit s control board e For board and Electrical Wiring Diagram see Chapter 6 Outdoor main board p

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