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TECHNICAL & SERVICE MANUAL

1. PIIL IF 80 BM E Y 125 KIMI BS Refrigerant Refrigerant ion type R407C R22 Sub number Outdoor unit R410A Ceiling cassette R410A Wall mounted type commonness MULTI S M NET control E Hidden skylight type BM Frequency Outdoor unit Salt proof C Ceiling suspended type Frequency CM model type type M Ceiling cassette type conversion KM M NET controller Power supply tandina t controller M W Air to Water Unit me Single phase LMD Indicates equivalent 220 230 240V 50Hz NEW frequency converter to Cooling capacity Y 3 phase one to many air conditioners k cal h 380 400 415V 50Hz flexible design type Power supply V Single phase Indicates equivalent to Cooling capacity k cal h 220 230 240V 50Hz 3 Operating temperature range Cooling W B 15 to 24 D B 5 to 46 C Heating D B 15 to 27 C W B 20 to 15 C Indoor side intake air temperature Outdoor side intake air temperature Notes D B Dry Bulb Temperature W B Wet Bulb Temperature 10 46 C D B When connecting PKFY P15 P20 P25VBM PFFY P20 25 32VKM and PFFY P20 25 32 VLE R M type indoor unit m When connecting fresh air type indoor unit Capacity of Fresh air type indoor Cooling D B 21 to 43 C Heating P80 D B 10 to 20 I
2. Og xen T i s i Noll aNno3 lt is ____________ emuaveps Li 04 oee is 1 1 F juBieu oq uonepuno4 A 74 922 paseyound OLW og pue 1694 aq JsNW sJeusew pue sog mojaq y y eyeju p WOY epeulequeo lt 8 EM gt 0LN Uomepunoj y yim ale 9500 0185 10 ale slejep jo uonuejdxa suorpeuuoo pue tun ay 5 asea d eoeds jo suoisueuiiq oiseq e swous eu SNOILOSUIC NIYIM Nldld v 51108 39vdS 39IAH3S yun eu 3085 3383 PUMY P112VKM BS PUMY P125VKM BS PUMY P140VKM BS OCH547 mm 2 ce d s eiou uresa 091 09 09 Sr E v Oy I o TES 2 ang y90uy ZS jou Eon La ES zg 3 ix 8
3. Same as above 51 Use the indoor unit IC TES T87 address plus 150 as the TE sub remote controller S AN address In this case it should be 152 3 or more remote con troller RC cannot be connected to 1 indoor RC unit Same as above IC Main IC Sub 01 02 TBS TB15 TBS TB15 ws 1 2 Ms 12 The remote controller address is the indoor unit main address plus 100 In this case it should be 101 OCH547 27 as B Example of a group operation system with 2 or more outdoor units and a M NET remote controller Address settings are necessary Examples of Transmission Cable Wiring System gt controller 1 Group Group Shielded Wire Sub Remote Controller Group Address Always use shielded
4. 10 0 e Current A lt 0 0 Total capacity of indoor units kW 6 0 x lt o 50 epum 4 0 Current A o lt se 2 0 ae 1 0 2 0 4 0 6 0 8 0 10 0 12 0 14 0 16 0 18 0 20 0 Total capacity of indoor units kW OCH547 13 a 4 3 4 PUMY P125VKM BS PUMY P125YKM BS heating 18 0 16 0 14 0 12 0 10 0 Capacity kW 8 0 6 0 4 0 2 0 2 0 4 0 6 0 8 0 10 0 12 0 14 0 16 0 18 0 20 0 Total capacity of indoor units kW 4 0 3 5 3 0 2 5 Input kW 2 0 1 5 1 0 0 5 2 0 4 0 6 0 8 0 10 0 12 0 14 0 16 0 18 0 20 0 Total capacity of indoor units kW 20 0 eem um
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6. 1501 Blocked valve in cooling mode Abnormal points detection methods Abnormal if stop valve is blocked during cooling operation Abnormal when both of the following temperature condition is satisfied for 20 minutes or more during cooling operation 1 TH22j TH21j 2 C 2 TH23j TH21j Z 2 C Note For indoor unit the abnormality is detected if an operating unit satisfies the condition Causes and check points QD Outdoor liquid gas valve is blocked Mulfunction of outdoor LEV LEV1 blockage TH21 Indoor intake temperature thermistor TH22 Indoor liquid pipe temperature thermistor TH23 Indoor gas pipe temperature thermistor LEV Electronic expansion valve eDiagnosis of defectives Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Open the outdoor stop valve Is the outdoor stop valve gt b liquid gas fully open liquid gas fully Disconnect the outdoor LEV wiring to check the resistance Is there a resistance detected gt Replace the outdoor LEV Yes gt Replace the outdoor controller board 53 OCH547 1508 4 way valve trouble in heating mode Abnormal points detection methods Causes and check points Abnormal if 4 way valve does not operate during heating operation D4 way valve failure
7. L01 102 LO3 400V AC eco ef CN5 Detection of primary current Connect to the outdoor noise filter circuit board CNCT CN4 Connect to the outdoor controller circuit board CN4 CN2 Connect to the outdoor controller circuit board CN2 O O Power circuit board Transmitting signal to the controller board 0 5V DC 2 9 Zero cross signal 0 5V DC 9 0 Not used 16V DC 16V DC 0 9 G 0 06 0 6G OCH547 L3OUT L3IN Lead connect CN6 Thermistor lt Heat Sink gt TH8 112 DIP IPM Transmission power board PUMY P112VKM BS PUMY P112YKM BS ona PUMY P125VKM BS PUMY P125YKM BS Connect to the outdoor multi PUMY P140VKM BS PUMY P140YKM BS _ controller board 24 30V DC 9 0 24 30V DC PIS ERESCUEEUNS ey Ss a9 PLO 4 o odo B 4 pa 25 PO o o oWo 9 5 R11 TB1 Connect to the electrical parts box 3 r o 0 ag 5 gt fk 38 MA T F o CN1 Ky 93 Connect to the outdoor noise filter circuit board 0 9 220 240V AC e OCH547 113 Outdoor noise filter circuit board PUMY P112YKM BS PUMY P125YKM BS PUMY P140YKM BS LI2 NI CNAC1 POWER SUPPLY AC220 230 240V LI1 LI2 LI2 LI3 LI3 LI1 AC380 400 415V input Connect to the outdoor transmission LI1 NI LI2 NI LI3 NI AC220 230 240V in
8. LED indication Set all contacts of SW1 to OFF Example 2 During normal operation the scl m The LED indicates the drive state of the controller in the outdoor unit operahan uring cooling Bit 1 2 3 4 5 6 7 8 12 3 4 56 7 8 cc Indication opere 52C 2184 SV1 SV2 Always lit H H H 3 When fault requiring inspection has occurred The LED alternately indicates the inspection code and the location of the unit in which the fault has occurred OCH547 23 NECESSARY CONDITIONS FOR SYSTEM CONSTRUCTION S mele ES ONI 26 10 10 400 21019 MS SSeJppv MS SSeJppv Jejojuoo Jejouoo 23 ZOL EIOS E 5 SEEN i ERN ERN ERN ERN ERN COGS CEG A OES Caos 0 9 oe 0 9 Nove 0 9 Kole Noe 1054 lt MS SS8Jppv MS SSeJppv MS SSeJppv MS SSeJppv MS SS8Jppv 90 40 g 80 60 d g un
9. PUMY P112VKM BS PUMY P112YKM BS PUMY P125VKM BS PUMY P125YKM BS PUMY P140VKM BS PUMY P140YKM BS lt CAUTION gt TEST POINT is high voltage SW8 SW2 SW3 SW7 SW4 CN51 Model selection Pump down Test run Forced defrost Model selection External signal output gt CN102 Connect to the M P B Func Transmission power board Function selection SW5 Function selection CN40 CN41 Centralized control power supply For storing SW9 jumper connector selection Function selectio SW1 CNS2 Display selection Transmission wire of Self diagnosis centralized control SWU2 SWU1 Address setting CNS1 Indoor outdoor unit CNLVB connecting wire Electronic expansion hi Valve ped r 3 LER CN2 Connect to the outdoor power circuit board 0 0 Power circuit board gt Transmitting signal to i os Electronic expansion E um E Valve R Eo le Ko Ei P dese S gt Input of demand APAN the multi controller board 63H 0 5V DC High pressure switch Zero cross signal 0 5V DC CN3D 9 0 Not used Input of demand control 16V DC Q 6 16V DC TH2 Thermistor Hic pipe CNAC Power supply for multi controller
10. Primary current error 5300 Abnormal points and detection methods Causes check points Abnormal if the detected current sensor input value primary current D Decrease trouble of power supply voltage during compressor operation is outside the specified range Disconnection of compressor wiring Input sensor trouble on outdoor power board eDiagnosis of defectives Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Check the input current at the time of abnormal stop The power supply voltage is decreased or abnormal Check the power supply facility Does it satisfy the condition 1 in the lower right Y Yes Applicable only for P112 125 140V model oh PP Condition 1 Model Error detecting condition 34A or more for 10 consecutive P112 125 140V seconds or 38A or more Check the compressor wiring for disconnection or looseness Is there any abnormality such as Yes a disconnection or looseness Connect compressor wiring properly Replace the outdoor power board Malfunction of current sensor circuit 81 OCH547 Models equipped with the float switch 5701 Contact failure of drain float switch Abnormal points and detection methods Causes check points lt Models equipped with the
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13. 07 TBS TB15 tt TB15 pal 1 Examples of Transmission Cable Wiring Group Group Group Shielded Wire Sub Remote Controller Address Always use shielded wire when making connections between the outdoor unit OC and the indoor unit IC as well for all OC OC and IC IC wiring intervals Use feed wiring to connect terminals M1 and M2 and the ground terminal on the transmission cable terminal block TB3 of each outdoor unit OC to terminals M1 and M2 on the terminal S on the transmission cable block of the indoor unit IC Connect terminals M1 and M2 on the transmission cable terminal block of the indoor unit IC that has the most recent address within the same group to the terminal block on the remote controller RC Connect together terminals M1 M2 and terminal S on the terminal block for centralized control TB7 for the outdoor unit OC DO NOT change the jumper connector CN41 on MULTI controller board The earth processing of S terminal for the centralized control terminal block TB7 is unnecessary Connect the termi nal S on the power supply unit with the earth g Set the address setting switch as follows Unit Range Setting Method IC Main 01 to 00 Use the sm
14. M NET Power Circuit Board W M U f TB1 ConnectionTerminal lt Ground gt Co 3 TO BRANCH BOX TB1 MC RED POWER SUPPLY 7 L IN BLU 230V 50Hz ala past QD Cautions when Servicing e A WARNING When the main supply is turned off the voltage 340 V in the main capacitor will drop to 20 V in approx 2 minutes input voltage 230 V When servicing make sure that LED1 LED2 on the outdoor circuit board goes out and then wait for at least 1 minute e Components other than the outdoor board may be faulty Check and take corrective action referring to the service manual Do not replace the outdoor board without checking NOTES 1 Refer to the wiring diagrams of the indoor units for details on wiring of each indoor unit Self diagnosis function The indoor and outdoor units can be diagnosed automatically using the self diagnosis switch SW1 and LED1 LED2 LED indication found on the multi controller of the outdoor unit LED indication Set all contacts of SW1 to OFF 2 During normal operation The LED indicates the drive state of the controller in the outdoor unit Bit 1 2 3 4 5 6 7 8 Indication oe 52C 2184 svi SV2 Always lit 3 When fault requiring inspection has occurred The LED alternately indicates the inspection code and the location of the unit in which the fault has occurred OCH547 22 Exam
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19. Thermistor Outdoor liquid pipe TH3 Removing the 4 way valve coil 2184 1 Remove the service panel See Photo 1 Removing the 4 way valve coil 2 Remove 4 way valve coil fixing screw M5 x 7 3 Remove the 4 way valve coil by sliding the coil toward you 4 Disconnect connector 2154 green on the multi control y ia coil ler board in the electrical parts box 4 way valve 8 Removing the 4 way valve 1 Remove the service panel See Photo 1 2 Remove the top panel See Photo 1 3 Remove the electrical parts box See Photo 5 4 Remove 3 valve bed fixing screws 4 x 10 and 4 ball valve and stop valve fixing screws 5 x 16 and then remove the valve bed See Photo 4 and 7 5 Remove 4 right side panel fixing screws 5 x 12 in the rear of the unit and then remove the right side panel 6 Remove the 4 way valve coil See Photo 10 7 Recover refrigerant 8 Remove the welded part of 4 way valve 4 way valve coil fixing screw Note 1 Recover refrigerant without spreading it in the air Note 2 The welded part can be removed easily by remov ing the right side panel Note 3 When installing the four way valve cover it with a wet cloth to prevent it from heating 120 C or more then braze the pipes so that the inside of pipes are not oxidized OCH547 138 OPERATING PROCEDURE PHOTOS 9 Removing bypass valve coil SV1 and bypass valve 1
20. rH lt o 5 0 4 0 3 0 uM Current A o lt 2 0 Tent 1 0 2 0 4 0 6 0 8 0 10 0 12 0 14 0 16 0 18 0 20 0 Total capacity of indoor units kW OCH547 12 _____ gg M UG 4 3 3 PUMY P125VKM BS PUMY P125YKM BS cooling Before calculating the sum of total capacity of indoor units please convert the value into the kW model capacity following the formula on 4 1 1 Method for obtaining system cooling and heating capacity 18 0 16 0 14 0 12 0 10 0 8 0 Capacity kW 6 0 4 0 2 0 2 0 4 0 6 0 8 0 10 0 12 0 14 0 16 0 18 0 20 0 Total capacity of indoor units kW 4 0 3 5 3 0 2 5 2 0 Input kW 1 5 1 0 0 5 2 0 4 0 6 0 8 0 10 0 12 0 14 0 16 0 18 0 20 0 Total capacity of indoor units kW 20 0 15 0
21. MENU RETURN SELECT ON OFF Function buttons F1 F2 F3 F4 Service menu 12 gt Test run Input maintenance info Function setting Check Self check Main menu BA mae C Fl Fe FA gt amp oe 2 Select Test run with the F1 22 button and press the button Test run menu gt Test run Drain pump test run Service menu Cursor See 0e Test run operation Press the F1 button to go through the operation modes in the order of Cool and Heat Cool mode Check the cold air blow off Heat mode Check the heat blow off Cw Press the button and open the Vane setting screen Auto vane check Check the auto vane with the F1 F2 buttons Check the operation of the outdoor unit fan also we Press the 9 button to return to Test run operation we Press the button When the test run is completed the Test run menu screen will appear The test run will automatically stop after two hours The function is available only for the model with vanes OCH547 35 Test run Remain 2 68 Pipe 28 c Cool Auto Switch disp x v Bo Fan Em 0C 200 Remain 2 88 m LV a ee Fl F8 F3 OOO e _________ O 8 1 2 Special Function Operation and Settings for Remote Controller It is necessary t
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25. ee Valve bed Compressor MC Lh is Terminal cover Cover panel y Front Cover panel Front panel fixing screws fixing screws 5 x 12 Continue to the next page OCH547 131 aaa From the previous page OPERATING PROCEDURE PHOTOS amp ILLUSTRATION 6 Remove 2 electrical parts box fixing screws 4 x 10 and detach the electrical parts box by pulling it upward The electrical parts box is fixed with 2 hooks on the left and 1 hook on the right Photo 5 Electrical parts box Electrical parts box fixing screws 4 Removing the thermistor Suction pipe TH6 1 Remove the service panel See Photo 1 2 Remove the top panel See Photo 1 3 Disconnect the connectors TH6 and TH7 red on the multi controller board in the electrical parts box 4 Loosen the wire clamps on the side of the electrical parts box and next to it 5 Pull out the thermistor Suction pipe TH6 from the sen sor holder Note When replacing thermistor Suction pipe TH6 replace it together with thermistor Ambient TH7 since they are combined together Refer to procedure No 5 below to remove thermistor Ambient TH7 Electrical parts box Thermistor Suction pipe TH6 High pressure 63HS sensor Thermistor HIC pipe TH2 Ball valve and stop valve fixing Screws Thermistor Compressor TH4 5 Removing the thermistor Ambient
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27. 26 35 10m F The total length of each liquid line is as follows procedure shown to the right and charge with the 9952 A B C a 65m additional refrigerant 06 35 b d e 50 For amounts less than 0 1 kg round up the calculated The total capacity of connected indoor unit is as follows additional refrigerant charge 71 4 5 2 8 2 2 2 2 18 8 For example if the calculated charge is 6 01 kg round up Calculation exarnple gt Additional refrigerant charge the charge to 6 1 kg 19 0 50 0 50 x 100 65x 1000 3 0 7 2 kg rounded up Total capacity of Amount for the connected indoor units indoor units OCH547 129 ss 10 2 PRECAUTIONS AGAINST REFRIGERANT LEAKAGE 10 2 1 Introduction R410A refrigerant of this air conditioner is non toxic and non flammable but leaking of large amount from an indoor unit into the room where the unit is installed may be deleterious To prevent possible injury the rooms should be large enough to keep the R410A concentration specified by KHK a high pressure gas safety association installation guide lines 50010 as follows Maximum concentration Maximum refrigerant concentration of R410A of a room is 0 3 kg m accordance with the installation guidelines To facilitate calculation the maximum concentration is expressed in units of kg m kg of R410A per m Maximum concentration of R410A 0 3kg nv K
28. 373 oc 180 kQ 25 C 50 kQ 50 C 17 kQ 70 C 8 kQ 90 4 kQ High temperature thermistor Thermistor Compressor TH4 Thermistor R120 7 465 2 96 B constant 4057 2 96 50 Resistance 10 20 10_0 10 20 30 40 50 Temperature 200 150 100 Resistance kQ 50 25 50 75 100 110 125 C Temperature 500 400 S k N Resistance 100 25 50 75 100 120 Temperature lt LOW PRESSURE SENSOR gt MULTI Cace cesss CONTROLLER BOARD 5V DC 2 w 25 Vout WHT 42 MICRO i PROCESSOR SENSOR 05 63 5 __ SND 1 1 Rt 7 465exp 4057 z 333 20 C 250 kQ 70 C 34 kQ 30 C 160 kQ 80 C 24 kQ 40 C 104kQ 90 17 5 kQ 50 C 70 100 13 0 60 48 110 9 8 kQ HIGH PRESSURE SENSOR Vout V MULTI CONTROLLER BOARD i SVDC s Les 9 E y Pnocesson m ___ _ SND z O 5V DC 2 5 OCH547 PRESSURE MPa 0 Output Vout DC 109 0 85 1 7 PRESSURE MPa 5V DC Output Vout DC Sass 8 9 TEST POINT DIAGRAM Outdoor multi controller board
29. TH2 63H LEVA LEVB TB1B Terminal Block Branch Box yeu M M TB3 Terminal Block Comunication Line MULTI B kol W is the switch position TB7 Terminal Block Centralized Control Line dud Bd dd Hd CN3S SWUZSWUISWS SWS Swe FUSE1 FUSE2 Fuse lt T20AL250V gt 48 3 3331 CNF1 131 41221 12 WHT RED BLU Hava Motor For Compressor t wur 63HS TH7 6 TH3 TH4 TH2 8 555 595 65665 3 2 Fan Motor WHT RED WHT WHT BLK 181831 3 1 5 1 5 SW2 CNLVA CNLVB 2184 Solenoid Valve Four Way Valve CNF2 1 WHT RED 63H High Pressure Switch rwr his m SW4 SW3 SWT 63HS High Pressure Sensor BLU YLW 4 ii li 63LS Low Pressure Sensor T Re WHT LEDI LED sv1 Solenoid Valve lt Bypass valve gt E TRANS 5999999 eni HH BH TH2 Thermistor Hic Pipe e WHT TH3 Thermistor lt Outdoor Liquid Pipe gt CNDC T 1 2 TH4 Thermistor lt Compressor gt PNK FA qe TH6 Thermistor Suction Pipe m e Ts ET Tz 2 CN102 5 3 Ss WHT TH7 Thermistor lt Ambient gt X gt X 52 x F2 LED3 CNS1 CNS2 CN41 CN40 4 1 TH8 Thermistor Heat Sink kas t RED YLW WHT WHT aa RS Rush Current Protect Resistor Y GRN 5 es ee LEV A LEV B Electronic Expansion Valve H ACL4 Reactor DCL Reactor P B Power Circuit Board TB U V W Connection Terminal lt U V W Phase gt TB3 TB
30. TH7 1 Remove the service panel See Photo 1 2 Remove the top panel See Photo 1 3 Disconnect the connector TH7 red on the Multi controller board in the electrical parts box 4 Loosen the wire clamps on top of the electrical parts box See Photo 6 5 Pull out the thermistor Ambient TH7 from the sensor holder Note When replacing thermistor Ambient TH7 replace it together with thermistor lt Suction pipe gt TH6 since they are combined together Refer to procedure No 4 above to remove thermistor lt Suction pipe gt TH6 OCH547 Photo 8 Lead wire of thermistor lt Ambient gt TH7 132 OPERATING PROCEDURE PHOTOS 6 Removing the thermistor lt Outdoor liquid pipe gt TH3 and thermistor lt Compressor gt TH4 thermistor lt HIC pipe gt TH2 1 Remove the service panel See Photo 1 2 Disconnect the connectors TH3 white and TH4 white TH2 black on the multi controller board in the electrical parts box 3 Loosen the clamp for the lead wire in the rear of the electri cal parts box 4 Pull out the thermistor lt Outdoor liquid pipe gt TH3 and thermistor lt Compressor gt TH4 from the sensor holder See Photo 7 and 9 Thermistor lt Outdoor liquid pipe gt TH3 Removing the 4 way valve coil 2154 1 Remove the service panel See Photo 1 Removing the 4 way valve coil 2 Remove 4 way valve coil fixing screw M5 x 7 3 Rem
31. Turn ON the emergency operation switch SWE gt Connect the connector CN4 properly Is AC200V output on the connector CNPA e Replace the indoor controller board Yes Y Check the voltage on both ends of the branch connector Is AC200V output Check the branch connector for breakage or contact failure Replace the drain pump OCH547 61 lt Drain sensor models gt 2503 Drain senor abnormality Abnormal points and detection methods Causes check points lt Drain sensor models gt D Contact failure of connector CN31 Abnormal if drain sensor detects to be short open 2 Characteristic defect of thermistor Breakage or contact failure of drain sensor wiring Replace the indoor controller board eDiagnosis of defectives Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Drain sensor models Check the drain sensor connector CN31 for disconnection or looseness Connect it properly Is it connected normally gt Turn the power back ON then check the operation Yes Y Is the resistance of thermistor normal gt Replace the drain sensor Yes gt Replace the indoor controller board lt How to check the resistance gt Discon
32. Unit E 99 9 999 9 OFF bid 12345678 Is the detected temperature normal Replace the controller board Malfunction of thermistor circuit Yes No abnormality A connector contact failure is suspected Y 76 OCH547 5109 HIC pipe temperature thermistor TH2 open short Abnormal points and detection methods Causes and check points Abnormal if TH2 detects to be open short D Disconnection or contact failure of connectors Open 40 Cor less Characteristic defect of thermistor Short 90 or more TH2 Thermistor HIC pipe Defective outdoor controller board eDiagnosis of defectives Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards i T 1 The black square indicates a switch position Diagnosis Check the wiring and connector connection of TH2 Is there any abnormality such as a disconnection looseness or Yes breakage Connect the wiring connector properly Replace it in case of a breakage Disconnect the connector to check the resistance of TH2 using a tester Is the detected resistance normal gt Replace the thermistor The detected temperature of TH2 can be displayed by an operation of SW1 on the outdoor controller board SW1 Setting Display on LED1 2 Unit Check a temperature of TH2
33. 15 0 220V P 230V 24ov HA epe 10 0 Am Current A 5 0 AT 0 0 2 0 4 0 6 0 8 0 10 0 12 0 14 0 16 0 18 0 20 0 Total capacity of indoor units kW Current A 2 0 4 0 6 0 8 0 10 0 12 0 14 0 16 0 18 0 20 0 Total capacity of indoor units kW OCH547 14 _____ 4 3 5 PUMY P140VKM BS PUMY P140YKM BS cooling Before calculating the sum of total capacity of indoor units please convert the value into the kW model capacity following the formula on 4 1 1 Method for obtaining system cooling and heating capacity 20 0 18 0 16 0 14 0 12 0 10 0 Capacity kW 8 0 6 0 4 0 209 4 0 6 0 8 0 10 0 12 0 14 0 16 0 18 0 20 0 22 0 Total capacity of indoor units kW 5 0 4 5 4 0 3 5 3 0 2 5 Input kW 2 0 1 5 1 0 0550 4 0 6 0 8 0 10 0 12 0 14 0 16 0 18 0 20 0 22 0 Total capacity of indoor units kW 25 0 T j lt 5 TM TH Pe m EE 15 0 230V Current A lt
34. 4 0 Current A o lt 3 0 23 e 2 0 mee 40 2 0 4 0 6 0 8 0 10 0 12 0 14 0 16 0 18 0 20 0 Total capacity of indoor units kW OCH547 11 ss 4 3 2 PUMY P112VKM BS PUMY P112YKM BS heating 16 0 14 0 12 0 10 0 8 0 Capacity kW 6 0 4 0 2 050 4 0 6 0 8 0 10 0 12 0 14 0 16 0 18 0 200 Total capacity of indoor units kW 3 5 3 0 2 5 2 0 Input kW 1 5 1 0 0 5 2 0 4 0 6 0 8 0 10 0 12 0 14 0 16 0 18 0 20 0 Total capacity of indoor units kW 20 0 15 0 220V 230V besten 240V 4 UH 10 0 qe Current A 2 0 4 0 6 0 8 0 10 0 12 0 14 0 16 0 18 0 20 0 Total capacity of indoor units kW 6 0
35. Does the fan rotate during compressor operation gt gt Refer to the diagnosis of check code 4400 Is there any obstacle which blocks an airflow around the Heat gt Improve the airflow path Sink air path blocked no obstacle Check the wiring and connector connection TH8 Is there any abnormality such Connect the wiring connector properly e n ic Replace it in case of a breakage Y TH8 temp resistance characteristic 0 C 180kO 25 C 50kO 50C 17kO0 Check the resistance of TH8 70C BkQ 90C 4kQ Y gt Replace the thermistor 2 Is the resistance normal 7 Defective thermistor Replace the outdoor power board Defective outdoor power board 69 OCH547 4250 Power module trouble Abnormal points and detection methods Causes check points Abnormal if overcurrent of DC bus or compressor is detected 30seconds after the compressor starts operating To determine the source of abnormality either the compressor or the power module drive the power module forcedly Closed outdoor stop valve 2 Decrease of power supply voltage 8 Disconnection looseness or conversed connection of compressor wiring Defective compressor 9 Defective outdoor power board eDiagnosis of defectives Make sure to turn the power OFF befo
36. Heat exchanger inlet 12 3 55 5 11 1 55 7 10 4 56 8 OCH547 10 _____ M unn 4 3 STANDARD CAPACITY DIAGRAM Before calculating the sum of total capacity of indoor units please convert the value into the kW model capacity following the formula on 4 1 1 Method for obtaining system cooling and heating capacity 4 3 1 PUMY P112VKM BS PUMY P112YKM BS cooling 16 0 14 0 12 0 10 0 8 0 Capacity kW 6 0 4 0 2 0 2 0 4 0 6 0 8 0 10 0 12 0 14 0 16 0 18 0 20 0 Total capacity of indoor units kW 3 5 3 0 2 5 2 0 Input kW 1 5 1 0 9920 4 0 6 0 8 0 10 0 12 0 14 0 16 0 18 0 20 0 Total capacity of indoor units kW 20 0 15 0 10 0 mem Current A lt 1 gt 5 0 CHa 0 0 Total capacity of indoor units kW 6 0 lt o 5 0
37. Josues gH 0001100 9 jjeuuouqe Josues LOOOLOLL 9 Aejap Ajjeuuouqe 105095 OHI LOOOLOLO 9 Aejap Ajjeuuouqe 105095 PHI LOOOLOOL Zuo 48 fejop yjeuuouge jo euin gep Josues ensseJd uflp V0001000 9 v eyep z Lq31 eu Aejdsiq ejdsiq 829Sv C I Dunes LMS 119 OCH547 Ayewsouge eun sosuas 100 100 YOZ Ayyeusouge euin ye sosuas cu HKO0LOLL 02 Ajjeuuouqe jo swi ewouqe Jo euin HS OS pue sJoisiuueuy 7 LLOOLOLO 202 5 sien d 6 666 666 T Byep Josues jo Aejdsig jijeuuouqe euin py LOOLOOL Loz yjeuuouqe Jo w ejep LLOOLOOO 100 Josues eJnssaJd ufip yjeuuouqe euin asind Buluado 8911 000 1 661 yjeuuouqe euin Jon asind Buluado 000 0 86 yjeuuouqe Jo euin jo euim A31 100 jo LLOOOLOL Z6L es nd jo Aejdsiq ae d asind 25 000 00 961 Ayyewsouge euin sind 31 00001 S61 yjeuuouqe e
38. Liquid Line 50 or lower Gas Line 612 7 PUMY P125 PUMY P140 15 88 Gas Line Liquid Line 29 52 63 to 140 Gas Line 15 88 Note When connecting the CONNECTION KIT PAC LV11M J and an M series indoor unit refer to the installation manual for the CONNECTION KIT when selecting the pipe size and piping length Additional refrigerant charge Refrigerant for the extended piping is not included in the outdoor unit when the unit is shipped from the factory Therefore charge each refrigerant piping system with additional refrigerant at the installation site In addition in order to carry out service enter the size and length of each liquid pipe and additional refrigerant charge amounts in the spaces provided on the Refrigerant amount plate on the outdoor unit Calculation of additional refrigerant charge Calculate the additional charge using the liquid pipe size and length of the extended piping and total capacity of connected indoor units Calculate the additional refrigerant charge using the procedure shown to the right and charge with the additional refrigerant For amounts less than 0 1 kg round up the calculated additional refrigerant charge For example if the calculated charge is 6 01 kg round up the charge to 6 1 kg OCH547 Additional Charge Calculation of refrigerant charge Total capacity of Amount for the Pipe size Liquid pip
39. Restore the controller board and operate the unit Replace the indoor controller board Note that when controller board is defective in a usual case the check code 2500 is not displayed OCH547 56 lt Drain sensor models gt 2502 Drain overflow protection Chart 1 of 3 Drain pump DP Let drain sensor self heated and if temperature rises slightly as suspensive abnormality operation stops and changes to protect mode of restarting in 3 minutes Drain pump is abnormal if the condition above is detected during suspensive abnormality lt 2502 gt is displayed The unit enters to forced outdoor unit stop when following conditions and are satisfied while the above mentioned detection is performed The drain sensor detects to be soaked in the water 10 times in a row Detected that liquid pipe temperature room temperature 10deg for 30 minutes constantly Notes 1 When the drain sensor detects to be NOT soaked in the water the detection record of and will be cleared 2 Drain pump abnormality above is detected before it becomes an outdoor unit forced stop condition G amp When indoor unit detects above condition outdoor unit in the same refrigerant sytem stops Also indoor unit except for Fan or OFF mode unit stop 2502 is displayed on stopped unit Detection timing of forced outdoor unit stop Constantly detected
40. S Using 2 remote controllers for each indoor unit Main a Same as above b Same as above c Set address switch on outdoor unit P C B as shown below Unit Range Setting Method Indoor Unit IC 001 to 050 Use the smallest address of all the indoor units plus 50 Outdoor unit 051 to 100 OC Main Remote Controller RC Indoor unit address plus 101 to 150 100 Sub Remote Controller RC Indoor unit address plus 151 to 200 150 3 Group operation oc 51 183 TB7 TB5 TB15 TB5 TB15 m uds 1 2 Mis 1 2 101 RC Multiple indoor units operated together by 1 remote controller a Same as above b Connect terminals M1 and M2 on transmission cable terminal block TB5 of the IC main unit with the most recent address within the same indoor unit IC group to terminal block TB6 on the remote controller c Set the address setting switch on outdoor unit P C B as shown below Unit Range Setting Method Use the smallest address within the IC Main same group of indoor units 001 to 050 Use an address other than that of the IC Main from among the units within the same group of indoor units This must be in sequence with the IC
41. pressor The refrigerant oil applied to flare and flange connections must be ester oil ether oil or alkylbenzene oil in a small amount Do not use a charging cylinder If large amount of mineral oil enters that can cause deterio ration of refrigerant oil etc If a charging cylinder is used the composition of refrigera nt will change and the efficiency will be lowered Charge refrigerant from liquid phase of gas cylinder If the refrigerant is charged from gas phase composition change may occur in refrigerant and the efficiency will be lowered Ventilate the room if refrigerant leaks during operation If refrigerant comes into contact with a flame poisonous gases will be released Use the specified refrigerant only Do not use refrigerant other than R410A If other refrigerant R22 etc is used chlorine in refrige rant can cause deterioration of refrigerant oil etc OCH547 Never use any refrigerant other than that specified Doing so may cause a burst an explosion or fire when the unit is being used serviced or disposed of Correct refrigerant is specified in the manuals and on the spec labels provided with our products We will not be held responsible for mechanical failure system malfunction unit breakdown or accidents caused by failure to follow the instructions 1 Cautions for service 1 Perform service after recovering th
42. 2 IGBT Power Module EI E2 ES E4 Connection Terminal Ground 2 7 3 MULTI B Controller Circuit Board EB 911 Switch lt Display Selection gt 5 33 CN52C sw2 Switch lt Function Selection gt aa pe 1 8 RED Sw3 Switch Test Run WHT RED lsat SW4 Switch lt Model Selection gt RED 2 SW5 Switch lt Function Selection gt SW6 Switch Function Selection fg M2 R D Y 5 7 Switch lt Function Selection gt ___ _____ rum uet Wir CNDC BLK SW8 Switch Model Selection TO INDOOR UNIT N2 PNK 3 11 a FH 5 9 Switch lt Function Selection gt CONNECTING WIRES as SWU1 Switch lt Unit Address Selection 1st digit gt DC30V Nonpola L 7 i Eis SWU2 Switch Unit Address Selection 2nd digit RED z CNS1 Connector lt Indoor Outdoor Transmission Line gt TB uw 2 P CNS2 Connector lt Centralized Control Transmission Line gt Mi Py SS Connector Connection For Option 1 M2 CN3D Connector Connection For Option ww 5 2 CN3S Connector lt Connection For Option gt mem CN3N Connector Connection For Option FOR CENTRALIZED qig E4 CN51 Connector lt Connection For Option gt DC 30V Non polar 77 ED 3 L2 LED1 LED2 LED Operation Inspection Display TB4B wivlu DCL2 DCL1 ie T LED3 LED Power Supply to Main Microcomputer gt Bi FUSE1 NI LI F1 F2 Fuse lt T6 3AL250V gt FUSE2 x io t x X501 505 Relay 1 1 1 111 773 B2 P m AGL
43. 4 Remove the electrical expansion valve coil See Photo 11 12 5 Remove the electrical parts box See Photo 5 6 Recover refrigerant 7 Remove the welded part of electrical expansion valve OCH547 134 OPERATING PROCEDURE PHOTOS 13 Removing the compressor MC Photo 13 1 Remove the service panel See Photo 1 Valve bed 2 Remove the top panel See Photo 1 Valve bed 3 Remove 2 front cover panel fixing screws 5 x 12 and remove the front cover panel See Photo 4 4 Remove front panel fixing screws 5 5x12 and 2 4 x 10 and remove the front panel See Photo 4 Y Valve 5 Remove 4 back cover panel fixing screws 5 x 12 and T bed fixing remove the back cover panel screws 6 Remove the electrical parts box See Photo 5 Separator 7 Remove 3 valve bed fixing screws 4 x 10 and 4 ball valve and stop valve fixing screws 5 x 16 and then remove the valve bed See Photo 4 and 7 8 Remove 3 right side panel fixing screw 5 x 12 in the rear of the unit and then remove the right side panel 9 Remove 3 separator fixing screws 4 x 10 and remove the separator See Figure 1 10 Recover refrigerant 11 Remove the 3 compressor fixing nuts for motor using span ner or adjustable wrench 12 Remove the welded pipe of motor for compressor inlet and outlet and then remove the compressor fixing screw Separator 15 fixin Note Recover refrigerant without spreading it
44. Disconnection or failure of 4 way valve coil Abnormal when any of the following temperature condition is satisfied for 3 Clogged drain pipe min or more during heating operation 1 TH22j TH21j 10 C Disconnection or loose connection of connectors 2 TH23j TH21j 2 10 Malfunction of input circuit on outdoor controller board 3 TH22j C Defective outdoor power board 4 TH23j TH21 Indoor intake temperature thermistor Note TH22 Indoor liquid pipe temperature thermistor For indoor unit the abnormality is detected if an operating unit satisfies the TH23 Indoor gas pipe temperature thermistor condition eDiagnosis of defectives Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis 15 the connector for outdoor controller board or 4 way valve coil Yes disconnected or loose Reconnect the connector or connect it tightly Disconnect the connector for outdoor controller board or 4 way valve coil to check the resistance Is there a resistance detected gt Replace the 4 way valve Yes Check the voltage and appearance of the outdoor controller board Is the detected voltage normal Is it free from any trace of over heating Replace the outdoor controller board or burning 54 OCH547 2500 Abnorm
45. ON OFF 12345678 99 9 999 9 C Replace the controller board 2 IUKGOIHCIGOTT IOPIOTSITA TOS RIA Malfunction of thermistor circuit Yes No abnormality gt A connector contact failure is suspected T1 OCH547 5110 Heat Sink temperature thermistor TH8 open short Abnormal points detection methods Causes and check points Abnormal if TH8 detects to be open short D Disconnection or contact failure of connectors DP112 125 140V model Internal thermistor gt Characteristic defect of thermistor Open 35 1 C or less Defecti t troll Short 170 3 C or more Defective outdoor controller board P112 125 140Y model Open 34 8 C or less Short 102 C or more TH8 Thermistor Heat Sink eDiagnosis of defectives Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards eT m d ond The black square m indicates a switch position Diagnosis Remedy Is it a model with internal thermistor Check the wiring and connector connection of TH8 Is there any abnormality such as a disconnection looseness or Yes breakage Connect the wiring connector properly Replace it in case of a breakage Disconnect the connector to check the resistance of TH8 using a tester Is the detected resistance norm
46. PAC LV11M J and an M series indoor Liquid Line mm Gas Line mm unit refer to the installation manual for the 9 52 15 88 CONNECTION KIT when selecting the pipe size and piping length m Additional refrigerant charge Additional Charge Refrigerant for the extended piping is not included in the Calc lation ofiretrigerant charge x Pipe size Pipe size outdoor unit when the unit is shipped from the factory Liguid pip Therefore charge each refrigerant piping system with 255 8 0 kw 1 5 kg additional refrigerant at the installation site In addition in 8 1 16 0 kw 2 5 kg m x 19 0 g m m x 50 0 g m order to carry out service enter the size and length of each 16 1 kW 3 0 kg liquid pipe and additional refrigerant charge amounts in Included refrigerant amount when shipped from the factory the spaces provided on the Refrigerant amount plate on Included refrigerant amount the outdoor unit Example Calculation of additional refrigerant charge Outdoor model P140 M Indoor 1 P63 7 1 kW A 29 52 30m 89 52 15m Calculate the additional charge using the liquid pipe size 2 P40 4 5 kW B 09 52 10 b 26 35 10m At the conditions and length of the extended piping and total capacity of 8 P25 2 8 kW 29 52 10 96 35 10m below connected indoor units 4 P20 2 2 kW 96 35 20m Calculate the additional refrigerant charge using the 5 P20 2 2 kW
47. SW5 SWe FUSE1 FUSE2 Fuse lt T20AL250V gt aa DTP xS THe mha TH ED BED ED LHe KO Kc MC Motor For Compressor WHT RED WHT WHT 1 31 3 1 3 1 5 1 5 SW Sa SW MF1 MF2 Fan Motor frui CNLVA CNLVB id 2184 Solenoid Valve Four Way Valve MF2 48 3333 CNF2 rd 2 9 CREDI WHT RED 63H High Pressure Switch e T we 63LS 63H ces spam WW 63HS High Pressure Sensor 37 ary LW CN2 1 51 5 63LS Low Pressure Sensor dc 1 RED 7 3 WHT LED1 LED2 SV1 Solenoid Valve Bypass valve 2 __ TRANS HH HH BH TH2 Thermistor Hic Pipe ONDO 7 an TH3 Thermistor Outdoor Liquid Pipe PNK F1 Ra TH4 Thermistor lt Compressor gt ig f tx Ta T 2 CN102 5 3 5 WHT TH6 Thermistor lt Suction Pipe gt 5 8 5 5 9 T CNS2 CN41 4 TH7 Thermistor lt Ambient gt EET ap h Mi M Q RED YLW WHT WHT Sar TH8 Thermistor lt Heat Sink gt HES eLK HH Eo BLU LEH E wer TRED Ed Gd tux LEV A LEV B Electronic Expansion Valve cro 1 DCL Reactor 2194 svi 2 2 2 CB Main Smoothing Capacitor MNETPE P B Power Circuit Board 4 UNIW Connection Terminal lt U V W Phase gt MND LI Connection Terminal lt L Phase gt BLK TBIN NI Connection Terminal lt N Phase gt i N2 Connection Terminal lt DC Voltage gt 67 2 Connection Terminal lt DC Voltage gt DCL1 DCL2 Connection Terminal lt Reactor gt
48. TH23 lt Detected in indoor unit gt 5101 5102 5103 Abnormal points detection methods Causes and check points Abnormal if any of the following thermistor detected to be open short D Contact failure of connectors 2 Characteristic defect of thermistor TH21 Air inlet thermistor Disconnection or contact failure of thermistor TH22 Liquid pipe temperature thermistor Defective indoor controller board TH23 Gas pipe temperature thermistor eDiagnosis of defectives Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Check the connection of thermistor wiring for looseness or disconnection Is it connected properly Connect the wiring properly gt Replace the thermistor gt Replace the indoor controller board lt Thermistors for low temperature gt m Check code and trouble Check code CN20 Air inlet thermistor trouble T 21 102 CN44 CN21 Liquid piping temperature thermistor trouble 5103 TH23 CN44 CN29 Gas piping temperature thermistor trouble m Thermistor characteristic Turn the power OFF to remove the connector for the thermistor then check the resistance with a tester At the ambient temperature 10 to 30 4 3 kQ to 9 6kQ Open or short Sa Symbols for thermistors and connectors may be different
49. any connectors or replacing boards The black square m indicates a switch position Diagnosis 63HS High pressure sensor Check the wiring and connector connection Is there any abnormality such C x wiring connector properly as a disconnection looseness Yes gt Replace it in case of a breakage breakage Check an internal pressure of the refrigerant circuit Is the detected internal pressure normal Check the refrigerant circuit and refill refrigerant after repairing the leakage The detected pressure in 63HS can be displayed by an operation of SW1 on the outdoor controller board Check the detected pressure in 63HS Swi Setting Display on LED 2 Unit then compare it with the internal pressure ON m nmt 99 9 999 9 kgf cm 12345678 Is the detected pressure normal gt Replace the 63HS gt Replace the outdoor controller board 79 OCH547 5202 Abnormal points and detection methods When the detected pressure in the low pressure sensor is 2 or less or 23 1kgf cm or more during operation the compressor stops operation with a check code 5202 Q For 3 minutes after compressor restarting during defrosting operation and for 3 minutes after returning from defrosting operation above mentioned symptoms are
50. by setting SW1 2 Outdoor controller board DIP SW9 2 SW1 SW2 Function Silent mode OFF ON Silent mode operation Demand control ON OFF OFF 10096 Normal ON OFF 75 ON ON 50 OFF ON 0 Stop OCH547 106 _____ 8 7 HOW TO CHECK THE PARTS PUMY P112VKM BS PUMY P112YKM BS PUMY P125VKM BS PUMY P125YKM BS PUMY P140VKM BS PUMY P140YKM BS Parts name Check points Thermistor TH3 lt Outdoor liquid pipe gt Thermistor TH4 lt Discharge gt lt Compressor gt Thermistor TH6 lt Suction pipe gt Thermistor TH7 lt Ambient gt Thermistor TH8 lt Heat Sink gt Disconnect the connector then measure the resistance with a tester At the ambient temperature 10 to 30 Normal Abnormal 160 kQ to 410 kQ TH4 TH3 TH6 TH7 TH8 4 3 kQ to 9 6 kQ Open or short THB is internal thermistor of power module Y 39 kQ to 105 kQ Fan motor MF1 MF2 Refer to next page Solenoid valve coil lt Four way valve gt 21S4 Measure the resistance between the terminals with a tester At the ambient temperature 20 Normal Abnormal 1725 172 5 Q Open or short Motor for compressor MC U Measure the resistance between the terminals with a tester Winding temperature 20 C Normal Abnormal PUMY P VKM PUMY P YKM 0 305 Q 0 466
51. fashion after resting the button again e Returning to the normal mode after completing the check Simultaneously press the FILTER and xx4 buttons on the remote controller and hold for 2 seconds to return to the normal mode 3 Clearing an address Refer to section 1 regarding the address entry and section 2 regarding checking addresses a In making group settings Turn off the remote controller The procedure is same as a in 2 Address check Put in the indoor unit address display mode The procedure is same as a in 2 Address check Displaying the indoor unit address to be cleared The procedure is same as a in 2 Address check e Clearing indoor unit address Pressing the 8 8 5 button on the remote controller twice will clear the address entry of the dis played indoor unit resulting in the display shown in Figure 6 The display shown in Figure 7 will appear if an abnormality occurs and the entry is not cleared Please repeat the clearing procedure Returning to the normal mode after clearing an address The procedure is same as a in 2 Address check Figure 6 Display after address has been Figure 7 Display when an abnormality has cleared normally occurred during clearing Ye 00 T mae apne INDOOR UNIT ADDRESS NO mae INDOOR UNIT ADDRESS NO 88 will appear in the room temperature display location will appear in the room temperature
52. on the above tables to calculate the system power factor Total system power consumption System power factor x 100 Total system current x voltage 9 7 2 Applying to an electric power company for power and total current Calculations should be performed separately for heating and cooling employing the same methods use the largest resulting value in your application to the electric power company OCH547 126 10 REFRIGERANT PIPING TASKS 10 1 REFRIGERANT PIPING SYSTEM Line Branch Method Connection Examples Connecting to 4 Indoor Units Outdoor Unit First Branch Indoor unit Total Piping Length 300 Permissible Farthest Piping Length L 150 Length Farthest Piping Length After First Branch B C d 30 Permissible High High Low Difference in Indoor Outdoor Section H 50 meters or less If the outdoor unit is lower 40 meters or less Low Difference High Low Difference in Indoor Indoor Section h 15 meters or less Selecting the Refrigerant Branch Kit Use an optional branch piping kit CMY Y62 G E W Select Each Section of Refrigerant Piping 1 Section From Outdoor Unit to First Branch A 2 Sections From Branch to Indoor Unit a b c d 3 Section From Branch to Branch B C Select the size from the table
53. then perform the procedure 1 When operating in a single refrigerant system single indoor unit the controller of Is it operating in multi refrigerant System When operating in a multi refrigerant system 2 or more outdoor units check if any of the indoor unit stores non existing address information the displayed address attribute is defective Delete the unnecessary address using Is the address information correct Replace the controller board which the displayed address attribute belongs to gt manual setting function on the remote controller Only for operating in a system with the Fresh Master Lossnay is connected or in a multi refrigerant system with group setting is set Defective outdoor controller board repeater circuit on the outdoor unit is suspected Does it operate normally Yes Replace the outdoor controller board by then check for normal operation gt Complete 90 OCH547 Check code 6608 No response frame error Abnormal points and detection methods Causes and check points Abnormal if receiving no response command while already received ACK D Continuous failure of transmission due to noise etc The sending side searches the error in 30 seconds interval for 6 times Decline of transmission voltage signal caused by continuously tolerance over on
54. 32745 338 21 OCH547 6 WIRING DIAGRAM SYMBOL NAME TB1 Terminal Block Power Supply 63LS eaug TH6 2 63H LEVA LEVB TB1B Terminal Block Branch Box i rr n a n TB3 Terminal Block lt Comunication Line gt MULTI B el d e T W is the switch position TB7 Terminal Block Centralized Control Line T ery Oren 05 e CN3D CN3S CN3N swu2Swu1 SW9
55. 52 11 16 x 41 11 32 x 13 1 Protection High pressure protection High pressure Switch devices Inverter circuit COMP FAN Overcurrent detection Overheat detection Heat Sink thermistor Compressor Compressor thermistor Over current detection Fan motor Overheating Voltage protection Refrigerant Type x original charge R410A 4 8kg Pentel Electronic Expansion Valve Net weight kg Ibs 123 271 Heat exchanger Cross Fin and Copper tube HIC circuit HIC Heat Inter Changer HIC circuit Defrosting method Reversed refrigerant circuit Drawing External BK01N346 Wiring BH78B813 Standard Document Installation Manual attachment Accessory Grounded lead wire x2 Optional parts Joint CMY Y62 G E Header CMY Y64 68 G E Remarks 1 Nominal cooling conditions 2 Nominal heating conditions Unit converter Indoor 27 C D B 19 C W B 81 F D B 66 F WB 20 C D B 68 F D B Outdoor 35 C D B 95 F D B 7 C DB 6 C W B 45 F D B 43 F W B kcal h kW x 860 Pipe length 7 5 m 24 9 16 ft 7 5 m 24 9 16 ft BTU h kW x 3 412 Level difference 0 m 0 ft 0 m 0 ft Note 1 Nominal conditions 1 2 are subject to ISO 15042 2 Due to continuing improvement above specifications may be subject to change without notice cfm m3 min x 35 31 Ib kg 0 4536 Above specification data is subject to rounding variation OCH547 Model PUMY P112YKM BS PUMY P125YKM BS PUMY P
56. 9 10961 440 ouueu uo 1461 NO Wey yun g oN yun JON yun 9 oN yun G ON yun yun yun z ON yun Aejdsip yun 0001 001 Sz 1461 dog 1 uo Buypoo g ON yun yun 9 ON pow yun yun pow yun 2 0 ON yun Jo0pu 0001 000 tZ J0sseJduo c Jaye pesay uang uoneyoxa Aeldsip uonejedo yun joopno OOOLOLLL 22 euun Bunejedo 0 6666 0 eun OOOLOLLO 22 jo feidsiq 1 Hun 6666 0 eun 00010101 LZ sapjo yjeuuouqe ose Qi Ary apoo Heo 00010100 0 yjeuuouge yjeuuouqe je9H ZHL 10sues einjeeduue episino 6 Aloysiy apoo Ajjeuuougy 00010011 6L Ayjeuuouqe 4 JS9pI o OY SI QJ Ul 1 epoo Ajjeuuou Aloisiy eouenbes ul Bum juerougnsul ozer gH L jeued Jo eIpeY viz a 9p v 00010010 84 Jopjo eujo2eq spJo
57. L1 L2 L3 Connection Terminal L1 L2 L3 PowerSuppy 1 M1 RED 2 THE 7 TB P1 P3 Connection Terminal 2 2 X52CA B 52 Relay ere M2 RED lel N F Noise Filter Circuit Board fee 8 pa f T2424 712 LO1 LO2 LO3 Connection Terminal lt L1 L2 L3 Power Supply TO INDOOR UNIT CN6 2 LI4 LI2 LI3 NI Connection Terminal lt L1 L2 L3 Power Supply CONNECTING WIRES WHT RED RED WHT GD1 GD3 Connection Terminal Ground DC 30V Non polar n BLK L3OUT BK MULTI Controller Circuit Board TB7 X52C IT Sw1 Switch Display Selections mw 2 ia p SW2 Switch Function Selection NAT X52C S SW3 Swich TesRum OO LN 69 i SW4 Switch lt Model Selection gt a E TEL RED ISW5 Switch lt Function Selection gt ISW6 Switch lt Function Selection gt FORCENTRALIZED 23 z SW7 Switch lt Function Selection gt DC 30V Non polar 77 5 8 Switch lt Model Selection gt TB1B amp sw9 Switch lt FunctionSelection gt Bi FUSE1 B SWU1 Switch Unit Address Selection 1st digit FUSE2 V SWU2 Switch Unit Address Selection 2nd digit gt 777 B2 DCL CNS1 Connector lt Indoor Outdoor Transmission Line gt 2 j DIS CNS2 Connector lt Centralized Control Transmission Line O MC 55 Connector lt Connection For Option gt TO BRANCH BOX TB1 CN3D Connector lt Connection For Option gt L1 CN3S Connector lt Connection For Option gt RED CN3N Connector
58. Main IC Sub 001 to 050 Use the smallest address of all the Outdoor Unit indoor units plus 50 051 to 100 Main Remote Controller Set at an IC Main address within 101 to 150 the same group plus 100 Sub Remote Controller Set at an IC Main address within the same group plus 150 151 to 200 d Use the indoor unit IC within the group with the most functions as the IC Main unit Combinations of 1 through 3 above are possible OCH547 26 ________ O Symbol and the Maximum Remote controller Units for Connection Name Maximum units for connection Outdoor unit Indoor unit 1 OC unit can be connected to 1 9 P112 1 10 P125 1 12 P140 IC units cn Maximum 2 RC for 1 indoor unit Maximum 12 RC for 1 OC Permissible Lengths Prohibited items Longest transmission cable length 1 25 mm L1 L2 L2 L3 L3 L1 200m Remote controller cable length 1 If 0 5 to 1 25 mm 1 2 510m 2 If the length exceeds 10 meters TB5 TB15 the exceeding section should be Ws ws 1 25 mm and that section should 4 be a value within the total exten sion length of the transmission cable and maximum transmis sion cable length L3 M NET remote controller RC and MA remote controller MA cannot be used together Do not connect anything with TB15 of indoor unit IC
59. OFF thermo OFF eDiagnosis of defectives Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis 15 5101 displayed when restart Yes gt Refer to the diagnosis of check code 5101 5101 1102 Is the outdoor stop valve liquid gas fully open Open the stop valve liquid gas fully Is there a refrigerant leak Yes Repair the refrigerant leakage no leak Check the connection for thermistor wiring and indoor controller board connector Is there any abnormality on connectors wires such as a disconnection Yes half disconnection or breakage Y Continue to the next page Connect the connector properly Repair or replace it in case of a breakage Y 40 OCH547 1102 Compressor temperature trouble eDiagnosis of defectives Chart 2 of 2 Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Remedy Continued from the previous page Disconnect the thermistor wiring to check the resistance Is there a resistance detected Check the voltage and appearance of the outdoor controller board Is the voltage normal value Replace the thermistor Is it free from any tra
60. Operating temperature range 2 When the indoor unit of Fresh Air type is connected with the outdoor unit the maximum connectable total indoor unit capacity is 11096 10096 in case of heating below 5 23 F 3 When connecting PWFY series Only 1 PWFY P100VM E AU can be connected PWFY P200VM E AU and PWFY P100VM E BU cannot be connected The PWFY unit cannot be the only unit connected to an outdoor unit Select an indoor unit so that the total rated capacity of the indoor units excluding the PWFY unit is 50 to 100 of the outdoor unit capacity 4 When connecting the CONNECTION KIT PAC LV11M J and an M series indoor unit refer to the installation manual for the CONNECTION KIT OCH547 5 as 2 2 UNIT SPECIFICATIONS 1 Outdoor Unit Service Ref PUMY P112VKM BS PUMY P112YKM BS PUMY P125VKM BS PUMY P125YKM BS PUMY P140VKM BS PUMY P140YKM BS Capacity Cooling kW 11 2 14 0 15 5 Heating kW 12 5 16 0 18 0 Compressor kW 2 9 3 5 3 9 Cooling Heating capacity indicates the maximum value at operation under the following condition Cooling Indoor D B 27 W B 19 0 C Outdoor D B 35 C Heating Indoor D B 20 C Outdoor D B 7 C W B 6 C 2 Method for identifying MULTI S model m Indoor unit lt When using Model 80 gt m Outdoor unit When using model 125
61. Separator 7 Remove 3 valve bed fixing screws 4 x 10 and 4 ball valve and stop valve fixing screws 5 x 16 and then remove the valve bed See Photo 4 and 7 8 Remove 3 right side panel fixing screw 5 x 12 in the rear of the unit and then remove the right side panel 9 Remove 3 separator fixing screws 4 x 10 and remove the separator See Figure 1 10 Recover refrigerant 11 Remove the 3 compressor fixing nuts for motor using span ner or adjustable wrench 12 Remove the welded pipe of motor for compressor inlet and outlet and then remove the compressor fixing screw Separator 78 fixing Note Recover refrigerant without spreading it in the air B Screws Separator 7 fixing screw 15 Removing the accumulator 1 Remove the service panel See Photo 1 2 Remove the top panel See Photo 1 3 Remove 2 front cover panel fixing screws 5 x 12 and remove the front cover panel See Photo 4 4 Remove 4 back cover panel fixing screws 5 x 12 and remove the back cover panel 5 Remove the electrical parts box See Photo 5 6 Remove 3 valve bed fixing screws 4 x 10 and 4 ball valve and stop valve fixing screws 5 x16 and then remove the valve bed See Photo 4 and 7 7 Remove 3 right side panel fixing screw 5 x 12 in the rear of the unit and then remove the right side panel 8 Recover refrigerant 9 Remove 2 welded pipes of accumulator
62. and the M NET remote controller cannot be used together with the indoor unit of the same group IC 00 TB5 15 vds 1 Longest transmission cable length L1 L2 200m 1 25 mm MA remote controller cable length 23 24 05 06 200m 0 3 1 25 3 remote controller or more cannot be connected with the indoor unit of the same group IC 00 TBS 15 Longest transmission cable length L1 L2 200m 1 25 mm MA remote controller cable length 7 8 200m 0 3 1 25 mm OCH547 31 The second MA remote controller is connected with the terminal block TB15 for the MA remote controller of the same indoor unit IC as the first remote control D Example of group operation with 2 or more outdoor units and MA remote controller Address settings are necessary 51 iC 06 TB3 i 185 TB45 ijn s i WS 72
63. can be removed easily by remov ing the right side panel Note 3 When installing the high pressure switch and high pressure sensor cover them with a wet cloth to prevent them from heating 100 C or more then braze the pipes so that the inside of pipes are not oxidized Photo 11 Bypass valve Electronic expansion coil fixing screw valve coil LEV B Bypass valve coil SV1 DT 4 Electronic tine expansion valve 1 Bypass valve Low pressure pressure sensor 63LS tch 63H Wm High pressure sensor 63HS 11 Removing the low pressure sensor 63LS 1 Remove the service panel See Photo 1 2 Remove the top panel See Photo 1 3 Remove 3 right side panel fixing screws 5 x 12 in the rear of the unit and remove the right side panel 4 Disconnect the connector 63LS blue on the multi controller circuit board in the electrical parts box 5 Remove the electrical parts box See Photo 5 6 Recover refrigerant 7 Remove the welded part of low pressure sensor Note 1 Recover refrigerant without spreading it in the air Note 2 The welded part can be removed easily by remov ing the right side panel Note 3 When installing the low pressure sensor cover it with a wet cloth to prevent it from heating 100 C or more then braze the pipes so that the inside of pipes are not oxidized 12 Removing electrical expansion valve LEV A LEV B 1 Remove the ser
64. circuit 1 SI L1J IR HN1 S IN1 Check of IGBT circuit 12 N1 Check of INVERTER circuit PI IU INT UI NTI W Note The marks R S C1 L2 P N1jJ 0 V and W shown in the diagram are not actually printed on the board CN2 Connect to the outdoor controller circuit board CN2 CN4 1 5 Transmitting signal to outdoor controller circuit board 0 5 V DC the outdoor 2 5 Zero cross signal 0 5 V DC controller circuit board CN4 3 4 18 V DC 6 5 16 V DC 7 5 16 V DC N2 CN52C CNDC Power Connect to the smoothing 52C driving signal 280 380 V DC module capacitor CB Connect to the outdoor Connect to the outdoor E2 E3 controller circuit board controller circuit board Connect to the elec CN52C CNDC X S FIT V i trical parts box x Ey JH E DCL2 ex gt W uj sii L U V W P2 DCL1 DCL2 El E4 CNAC1 CNAC2 NI LI Connect to the compres Connect to the smooth Connect to DCL Connect to the 230 V AC Voltage of 230 V AC is sor MC Voltage among ing capacitor CB electrica
65. controller board 50 OCH547 1501 Abnormal points and detection methods 1 Abnormal when all of the following conditions are satisfied 1 The compressor is operating in HEAT mode 2 Discharge super heat is 80 or more 3 Difference between TH7 and the TH3 applies to the formula of TH7 TH3 lt 5 C 4 The 63HS detects below 2 04 MPa 2 Abnormal when all of the following conditions are satisfied 1 The compressor is in operation 2 When cooling discharge superheat is 80 C or more When heating discharge superheat is 90 C or more The High pressure sensor detects below 2 32 MPa eDiagnosis of defectives Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis D Defective operation of stop valve not fully open Defective thermistor Defective outdoor controller board Indoor LEV performance failure 9 Gas leakage or shortage Defective 63HS Thermistor Outdoor liquid pipe Thermistor Ambient LEV Electronic expansion valve 63HS High pressure sensor Refrigerant shortage trouble Chart 1 of 2 Causes check points Is the outdoor stop valve ball Open the stop valve ball balve fully gt Repair the refrigerant leak valve fully open 15 there a refrigerant leak Yes leaking no leakin
66. inlet and outlet 10 Remove 2 accumulator leg fixing screws 4 x 10 See Photo 16 Note Recover refrigerant without spreading it in the air Accumulator Accumulator leg Accumulator leg fixing screws OCH547 141 CITY MULCH MITSUBISHI ELECTRIC CORPORATION HEAD OFFICE TOKYO BLDG 2 7 3 MARUNOUCHI CHIYODA KU TOKYO100 8310 JAPAN Copyright 2014 MITSUBISHI ELECTRIC CORPORATION Distributed in Feb 2014 No OCH547 New publication effective Feb 2014 Made in Japan Specifications are subject to change without notice
67. is connected or not 98 OCH547 7105 Address setting error Abnormal points and detection methods Causes check points The address setting of outdoor unit is wrong Wrongly set address of indoor unit The outdoor unit is not set in 000 or in the range of 51 to 100 eDiagnosis of defectives Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Check whether the outdoor unit address is set in 000 or in the range of 51 to 100 Set the address properly then turn the power OFF of indoor outdoor unit Fresh Master Lossnay and remote controller simultaneously for 2 minutes or more and turn the power back ON Is the address setting correct Replace the outdoor controller board Y 99 OCH547 8 2 REMOTE CONTROLLER DIAGNOSIS For M NET remote controller system If the air conditioner cannot be operated from the remote controller diagnose the remote controller as explained below First check that the power on indicator is lit If the correct voltage DC12 V is not supplied to the remote controller the indicator will not light If this occurs check the remote controller s wiring and the indoor unit Switch to the remote controller self diagnosis mode Press the CHECK button for 5 seconds more The display content will
68. lt Connection For Option gt L2 WAT CN51 Connector Connection For Option L3 BLK LED1 LED2 LED Operation Inspection Display EN LED3 LED lt Power Supply to Main Microcomputer gt BLU F1 F2 Fuse lt T6 3AL250V gt X501 505 Relay Power Circuit Board gt TB1 ConnectionTerminal Ground GDi GD3 anne iA 3 EN 5 A zz ACL4 m a 2 ES il Cautions when Servicing WARNING When the main supply is turned off the voltage 570 V in the main capacitor will drop to 20 V in approx 5 MODEL SELECTION minutes input voltage 400 V When servicing make sure that LED1 LED2 on the outdoor circuit board goes out and then black square indicates a switch position wait for at least 5 minute MODELS Sw4 SWS Components other than the outdoor board may be faulty Check and take corrective action referring to the service manual PUMY P112YKM OFF TE OFF T Do not replace the outdoor board without checking oN m PUMY P425YKM or Piin i ia NOTES 123456 12 1 Refer to the wiring diagrams of the indoor units for details on wiring of each indoor unit PUMY P140YKM o DAWAN oF T Self diagnosis function The indoor and outdoor units can be diagnosed automatically using the self diagnosis switch SW1 and LED1 LED2 LED indication found on the multi controller of the outdoor unit
69. more Decline of transmission voltage signal due to excessive number of connected units Malfunction due to accidental disturbance such as noise or lightning surge amp Defect of error source controller The cause of displayed address and attribute is on the outdoor unit side An abnormality detected by the indoor unit if receiving no ACK when transmitting signal from the indoor unit to the outdoor unit D Contact failure of indoor outdoor unit transmission line 2 Disconnection of transmission connector CN2M on indoor unit Malfunction of sending receiving circuit on indoor outdoor unit The cause of displayed address and attribute is on the indoor unit side An abnormality detected by the remote controller if receiving no ACK when sending data from the remote controller to the indoor unit While operating with multi refrigerant system indoor units an abnormality is detected when the indoor unit transmit signal to the remote controller during the other refrigerant system outdoor unit is turned OFF or within 2 minutes after it turned back ON 0 Contact failure of indoor unit or remote controller transmission line Disconnection of transmission connector CN2M on indoor unit Malfunction of sending receiving circuit on indoor unit or remote controller The cause of the displayed address and attribute is the remote controller side An abnormality detected by the indoor unit if receiving
70. no ACK when transmitting signal from the indoor unit to the remote controller 87 OCH547 Q While operating with multi refrigerant system indoor units an abnormality is detected when the indoor unit transmit signal to the remote controller during the other refrigerant system outdoor unit is turned OFF or within 2 minutes after it turned back ON Contact failure of indoor unit or remote controller transmission line Disconnection of transmission connector CN2M on indoor unit Malfunction of sending receiving circuit on indoor unit or remote controller Check code 6607 No ACK error Abnormal points and detection methods Chart 2 of 4 Causes and check points The cause of displayed address and attribute is on the Fresh Master side An abnormality detected by the indoor unit if receiving no ACK when transmitting signal from the indoor unit to the Fresh Master Q While the indoor unit is operating with multi refrigerant system Fresh Master an abnormality is detected when the indoor unit transmits signal to the remote controller while the outdoor unit with the same refrigerant system as the Fresh Master is turned OFF or within 2 minutes after it turned back ON Contact failure of indoor unit or Fresh Master transmission line Disconnection of transmission connector CN2M on indoor unit or Fresh Master Malfunction of sending receiving circuit on indoor unit or Fresh Master amp Th
71. not determined as abnormal eDiagnosis of defectives Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Check the wiring and connector connection Is there any abnormality such Low pressure sensor 635 trouble Causes check points D Defective low pressure sensor Decrease of internal pressure caused by gas leakage 9 Disconnection or contact failure of connector C Malfunction of input circuit on outdoor controller board The black square m indicates a switch position Remedy 63LS Low pressure sensor Connect the wiring connector properly as a disconnection looseness or Yes breakage Check an internal pressure of the refrigerant circuit Is the detected internal pressure Replace it in case of a breakage Check the refrigerant circuit and refill normal refrigerant after repairing the leakage The detected pressure in 63LS can be displayed by an operation of SW1 on the outdoor controller board SW1 Setting Check the detected pressure in 63LS then Display on LED1 2 Unit compare it with the internal pressure ON Mm tame 99 9 999 9 kgf cm 12345678 Is the detected pressure normal gt Replace the 6315 80 OCH547 Y Replace the outdoor controller board
72. on outdoor controller board eDiagnosis of defectives Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Is 5201 displayed when restart 1302 4 Refer to the diagnosis of check code 5201 Is the outdoor stop valve liquid gas fully open gt ase 8 gt Open the stop valve liquid gas fully Check the outdoor fan motor Does the outdoor fan rotate while the operation gt Refer to How to check the parts on the outdoor unit service manual Check the indoor fan motor Does the indoor fan rotate while the operation gt JB gt Refer to How to check the parts on the indoor unit servive manual Is the indoor unit short cycled short cycled oe Fx s A 2 no short cycle d Continue to the next page Solve the short cycle 45 OCH547 1302 High pressure trouble Tha OF eDiagnosis of defectives Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Remedy Continued from the previous page Yes Clean the filter Clogged filter Is the indoor unit filter clogged No clog ZH Is there dirt on the indoor heat exchanger Wash the indoor heat exchanger dirty dirt Yes 15
73. or wiring contact failure is Is the check code 6831 or 6834 still QT Check the remote controller for main sub setting Is there only 1 remote controller suspected Set one remote controller to main remote set as the main controller Conduct the Remote Controller Diagnosis 2 or more times Note It takes 6 sec at maximum until the result is displayed Is RC OK displayed on all remote controllers Is RC 6832 or 1 ERC66 Turn the power back ON J displayed controller and the other to sub No abnormality It might be caused by an external noise so check the transmission line Replace the remote controller Replace the indoor controller board with 6 minutes Continue to the next page Does HO or Please wait disappear within OCH547 the LED2 is blinking gt MA communication receive error Chart 2 of 2 eDiagnosis of defectives Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Continued from the previous page Refer to the chapter Electrical Work Connect the wiring properly as specified in gt the chapter Electrical Work in the indoor unit Installation Manual c No abnormality It might be caused by an extern
74. pump if drainage is generated even during a stop 103 8 5 INTERNAL SWITCH FUNCTION TABLE PUMY P112 125 140YKM BS PUMY P112 125 140VKM BS The black square m indicates a switch position HOLO3NNOO LAdLNO LNANI LINN YHOOGLNO 9 8 91 1949Y x unu 159 woad oj e Jo 34 uo YAMS e esf Pun y q eq seues AJMd UO uni 158 Jews 00 y 0 S NJBA 1009 ne j payeseuab a6seyosip au OL BUON 1qeuq 1009 qns oy BulyoyiMs 9 aq esiou jueJeDujel v qns eu OL uoneJedo uoge1edo BunsoJjep yuaya pue Buunp 10 440 eseeoui enje1eduje eBJeuosip eui plore OL euiooeq uonejedo y sasind 002 pea si OL fo Ajuo s n EE Paia do S Buunp esiou eu uone1edo Bunsojjep Buunp ATISH pur ou 49 jensn uey jeu amp iu Bulusdo AQT 950
75. than that of the outdoor unit Outdoor unit PUMY P125YKM Indoor unit PKFY P25VBM E x 2 PLFY P50VLMD E x 2 9 According to the conditions in the total capacity of the indoor unit will be 2 8 x 2 5 6 x 2 16 8 The following figures are obtained from the 16 8 total capacity of indoor units referring the standard capacity diagram in 4 3 3 PUMY P125VKM BS PUMY P125YKM BS heating PUMY P125YKM BS lt cooling gt and 4 3 4 PUMY P125VKM BS Capacity kW Outdoor unit power consumption kW Outdoor unit current A 400V Cooling Heating Cooling Heating Cooling Heating 14 60 16 33 3 51 3 44 5 34 5 23 4 1 2 Method for obtaining the heating and cooling capacity of an indoor unit 1 The capacity of each indoor unit kW the capacity or x model capacity total model capacity of all indoor units 2 Sample calculation using the system described above in 4 1 1 2 During cooling The total model capacity of the indoor unit is 2 8 x 2 5 6 x 2 16 8kW Therefore the capacity of PKFY P25VBM E and PLFY P50VLMD E will be calculated as follows by using the formula in 4 1 2 1 Model 25 14 6 x e 2 43kW 16 8 98 4 87kW Model 50 14 6 x 16 8 OCH547 9 During heating The total model capacity of indoor unit is 3 2 x 2 6 3 x 2 19 0 Therefore the capacity of PKFY P25VBM E and PLFY P50VLMD E will be calculated as
76. to the right Each Section of Piping 1 Refrigerant Piping Diameter In Section From Outdoor Unit to First Branch Outdoor Unit Piping Diameter 2 Refrigerant Piping Diameter In Section From Branch to Indoor Unit Indoor Unit Piping Diameter Model Piping Diameter mm Model number Piping Diameter mm PUMY P112 Liquid Line 9 52 Liquid Line 6 35 50 or lower 125 140 Gas Line 15 88 Gas Line 612 7 Liquid Line 9 52 3 Refrigerant Piping Diameter In Section From Branch to Branch Liquid Line mm Gas Line mm 9 52 15 88 63 to 140 Gas Line 15 88 Note When connecting the CONNECTION KIT PAC LV11M J and an M series indoor unit refer to the installation manual for the CONNECTION KIT when selecting the pipe size and piping length m Additional refrigerant charge Refrigerant for the extended piping is not included in the outdoor unit when the unit is shipped from the factory Therefore charge each refrigerant piping system with additional refrigerant at the installation site In addition in order to carry out service enter the size and length of each liquid pipe and additional refrigerant charge amounts in the spaces provided on the Refrigerant amount plate on the outdoor unit Calculation of additional refrigerant charge Calculate the additional charge using the liquid pip
77. transmission line At the furthest end 200m On remote controller line 12m Decline of transmission voltage signal due to unmatched transmission line types Types for shield line CVVS CPEVS Line diameter 1 25 mm or more Accidental malfunction of error source controller eDiagnosis of defectives Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Remedy Turn the power OFF of indoor outdoor unit Fresh Master Lossnay and remote controller simultaneously for 2 minutes or more then turn the power back ON Does it operate normally Check the transmission line for a disconnection and looseness on the terminal board and connector The transmission line is connected properly Check the transmission line whether it exceeds the tolerance or not It is not exceeding the tolerance gt Correct it within the tolerance GE Check whether the correct kind of transmission line is used or not Replace the controller board Defect of the controller which the displayed address attribute belong to Y gt Connect the transmission line properly 15 correct kind of transmission line Replace it with the correct kind of used gt transmission line Yes There is no abnormality on the A
78. valves on both liquid and gas side for full open Electrical wiring related Check ground wire transmission cable remote controller cable and power supply cable for secure connection Make sure that all switch settings of address or adjustments for special specification systems are correctly settled 2 Safety check With the insulation tester of 500V inspect the insulation resistance Do not touch the transmission cable and remote controller cable with the tester The resistance should be over 1 0 MQ Do not proceed inspection if the resistance is under 1 0 MQ Inspect between the outdoor unit power supply terminal block and ground first metallic parts like refrigerant pipes or the electrical box next then inspect all electrical wiring of outdoor unit indoor unit and all linked equipment 3 Before operation a Turn the power supply switch of the outdoor unit to on for compressor protection For a test run wait at least 12 hours from this point b Register control systems into remote controller s Never touch the on off switch of the remote controller s Refer to 8 1 2 Special Function Operation and Settings for M NET Remote Controller as for settings In MA remote controller s this registration is unnecessary 4 More than 12 hours later from power supply to the outdoor unit turn all power switch to on for the test run Perform test run according to the Operation procedure table of the bottom of this page While t
79. 0 Sub Remote Controller 151 to 200 at an IC Main address within the same group plus 150 MA Remote Controller Unnecessary address setting Necessary main sub setting Wiring Method Address Settings Outdoor Unit 51 to 100 h The group setting operations among the multiple indoor units is done by the remote controller RC after the electrical power has been turned on OCH547 28 _____ Name Symbol and the Maximum Units for Connection e Longest length via outdoor units L1 L2 L3 L4 L1 L2 L3 L5 L1 L2 L6 L7 2 500 meters 1 25mm7 e Longest transmission cable length L1 L3 L4 L3 L5 Le L2 L6 L7 200 meters 1 25mm e Remote controller cable length 21 22 2 3 4 S 10 meters 0 5 to 1 25mm7 If the length exceeds 10 meters use a 1 25 mm shielded wire The length of this sec tion L8 should be included in the calculation of the maximum length and overall length Permissible Length oc 51 Tes E 2 o A System controller Group Group Grou
80. 0 m 0 3 to 1 25 mm Permissible Length IC i 02 1 05 06 TB15 1 TBS TB15 TB5 TB15 i M1M2 8 4 2 M1M2 s 112 oc 53 E IC TB7 x 03 189 TB1S TB15 popas Al gt Prohibited items System Xk control Shielded Wire Sub Remote Controller Address Never connect together the terminal blocks 5 for transmission wires for indoor units IC that have been connected to different outdoor units OC M NET remote controller and MA remote controller cannot be connected with the indoor unit of the same group wiring together OCH547 33 8 TROUBLESHOOTING 8 1 CHECK POINTS FOR TEST RUN 8 1 1 Procedures before test run 1 Before a test run make sure that the following work is completed Installation related Make sure that the panel of cassette type and electrical wiring are done Otherwise electrical functions like auto vane will not operate normally Piping related Perform leakage test of refrigerant and drain piping Make sure that all joints are perfectly insulated Check stop
81. 1 8 29 8 v C youms pejeJedo yun Joopul pejoeuuoo Jayeay ay 440 SBuruuniiossaiduias uonoun pue pojoeuuoo s Jojeau jeufis uoissiuued uomoeuuoo sjlulsue 1 NO Jejeeu Aieixny p SMS y NO UNL pejoeuuoo s Jayeay fueiixne ue NO Un HNP NO 9 430 lt eniu Z Jepno dn A31 9u uoneJedo y aosdw uonejedo TTE aveu Buiuedo uejs esiou eu sasind c fO p sesind oo pL fO Jo yo l N A31 sjiun Joopul ay uey dn Jejs Buiuedo A31 99 195 OL U9UM 195 ueg eieasny episjno eiezsny ui si jun eu NO SIU Jou oq JO au oj NO WNL 4I PULON Buas eyeysny eijesny Buas 9S8v 2 ran 9Sv 20l m No Er a WXAOF m aam No WoiAOPLd AWnd 99576261 zi 9Srect YOUMS 330 330 u aper 10 9S NO 5 aa ae 420 BIN A No omen nd oy spol lt Eryu JEMOd eui zl 9s rez zi 9S rez 8MS pel d A a woaziie awnd MN 220 5 Rd IV MS 8MS YMS S THQOW 8MS 5 57840 330 0 NO L 03135 1900 Buioo Bunea epo 440 si amod 1005 m POW 2
82. 1 1 CAUTIONS RELATED TO NEW REFRIGERANT Cautions for units utilizing refrigerant R410A Use new refrigerant pipes Avoid using thin pipes Use a vacuum pump with a reverse flow check valve Vacuum pump oil may flow back into refrigerant cycle and that can cause deterioration of refrigerant oil etc Make sure that the inside and outside of refrige rant piping is clean and it has no contaminants such as sulfur oxides dirt shaving particles etc which are hazard to refrigerant cycle In addition use pipes with specified thickness Use the following tools specifically designed for use with R410A refrigerant Contamination inside refrigerant piping can cause deterio ration of refrigerant oil etc Store the piping indoors and both ends of the piping sealed until just before brazing Leave elbow joints etc in their packaging The following tools are necessary to use R410A refrigerant Tools for R410A Flare tool Size adjustment gauge Vacuum pump adaptor Electronic refrigerant charging scale Gauge manifold Charge hose Gas leak detector Torque wrench If dirt dust or moisture enters into refrigerant cycle that can cause deterioration of refrigerant oil or malfunction of com pressor Handle tools with care If dirt dust or moisture enters into refrigerant cycle that can cause deterioration of refrigerant oil or malfunction of com
83. 1 Top panel Top panel fixing screws Service panel meemmmg fixing screw Grille fixing Screws Service panel Fan grille Grille fixing screws 2 Service panel fixing screws 2 Removing the fan motor MF1 MF2 1 Remove the service panel See Photo 1 2 Remove the top panel See Photo 1 3 Remove 4 fan grille fixing screws 5 x 12 to detach the fan grille See Photo 1 4 Remove a nut for right handed screw of M6 to detach the propeller See Photo 2 5 Disconnect the connectors CNF1 and CNF2 on multi con troller board in electrical parts box 6 Remove 4 fan motor fixing screws 5 x 20 to detach the fan motor See Photo 3 Photo 2 Propeller Front panel Fan motor fixing screws Removing the electrical parts box 1 Remove the service panel See Photo 1 2 Remove the top panel See Photo 1 3 Disconnect the connecting wire from terminal block 4 Remove all the following connectors from multi controller board Diagram symbol in the connector housing Fan motor CNF1 CNF2 Thermistor HIC pipe TH2 Thermistor Outdoor liquid pipe TH3 Thermistor Compressor TH4 Thermistor Suction pipe Ambient Outdoor TH6 7 High pressure switch 63H High pressure sensor 63HS Low pressure sensor 63LS 4 way valve 2184 Bypass valve SV1 Pull out the disconnected wire from the electrical parts box 5 Remove the terminal cover
84. 10 0 5 0 n a 0 0 2 0 4 0 6 0 8 0 10 0 12 0 14 0 16 0 18 0 20 0 22 0 Total capacity of indoor units kW Current A 20 4 0 6 0 8 0 10 0 12 0 14 0 16 0 18 0 20 0 22 0 Total capacity of indoor units kW OCH547 15 ss 4 3 6 PUMY P140VKM BS PUMY P140YKM BS lt heating gt Capacity kW Input kW Current A Current A 20 0 18 0 16 0 14 0 12 0 10 0 8 0 6 0 4 0 2050 4 0 6 0 8 0 10 0 12 0 14 0 16 0 18 0 20 0 22 0 Total capacity of indoor units kW 5 0 4 5 4 0 3 5 3 0 2 5 2 0 1 5 1 0 05 0 4 0 6 0 8 0 10 0 12 0 14 0 16 0 18 0 20 0 22 0 Total capacity of indoor units kW 25 0 V Type 20 0 15 0 10 0 5 0 Ete 0 0 2 0 4 0 6 0 8 0 10 0 12 0 14 0 16 0 18 0 20 0 22 0 Total capacity of indoor units kW 8 0 7 0 6 0 5 0 4 0 3 0 2 0 1 0 At 2 0 4 0 6 0 8 0 10 0 12 0 14 0 16 0 18 0 20 0 22 0 Total capacity of indoor units kW OCH547 16 _____ 4 4 CORRECTING COOLING AND HEATING CAPACITY 4 4 1 Correcting Changes in Air Conditions 1 The performance
85. 140YKM BS Power source 3 phase380 415V 50Hz Cooling capacity kW 1 12 5 14 0 15 5 Nominal kcal h 1 10 750 12 040 13 330 BTU h 1 42 650 47 768 52 886 Power input kW 2 79 3 46 4 52 Current input A 4 46 4 24 4 09 5 53 5 26 5 07 7 23 6 87 6 62 COP kW kW 4 48 4 05 3 43 Temp range of Indoor temp W B 15 to 24 C cooling Outdoor temp D B 5 to 46 C Heating capacity kW 2 14 0 16 0 18 0 Nominal kcal h 2 12 040 13 760 15 480 BTU h 2 47 768 54 592 61 416 Power input kW 3 04 3 74 4 47 Current input A 4 86 4 62 4 45 5 98 5 68 5 48 7 15 6 79 6 55 COP kW kW 4 61 4 28 4 03 Temp range of Indoor temp D B 15 to 27 C heating Outdoor temp 20 to 15 C Indoor unit Total capacity 50 130 of outdoor unit capacity connectable Model Quantity 15 125 9 15 140 10 15 140 12 E sse sus Power pressure level dB A measured anechoic room Refrigerant Liquid pipe mm in 9 52 3 8 piping diameter Gas pipe mm in 15 88 5 8 FAN 2 Type x Quantity Propeller Fan x 2 Air flow rate m3 min 110 Lis 1 833 cfm 3 884 Control Driving mechanism DC control Motor output kW 0 06 0 06 External static press 0 Compressor Type x Quantity Scroll hermetic compressor x 1 Manufacture Mitsubishi Electric Corporation Starting method Inverter Capacity con
86. 19 C W B 81 F D B 66 F W B 20 C D B 68 F D B Outdoor 35 C D B 95 F D B 7 C DB 6 C W B 45 F D B 43 F W B kcal h kW x 860 BTU h KW x 3 412 Pipe length 7 5 m 24 9 16 ft 7 5 m 24 9 16 ft nies sida Hcr Ib kg 0 4536 Above specification data is subject to rounding variation OCH547 4 DATA 4 1 COOLING AND HEATING CAPACITY AND CHARACTERISTICS 4 1 1 Method for obtaining system cooling and heating capacity To obtain the system cooling and heating capacity and the electrical characteristics of the outdoor unit first add up the ratings of all the indoor units connected to the outdoor unit see table below and then use this total to find the standard capacity with the help of the tables on 4 3 STANDARD CAPACITY DIAGRAM 1 Capacity of indoor unit Model Number for indoor unit Model 15 Model 20 Model 25 Model 32 Model 40 Model 50 Model 63 Model 71 Model 80 Model 100 Model 125 Model 140 P FY Series Model Capea 17 22 2 8 3 6 4 5 5 6 7 1 8 0 9 0 11 2 Model Number for indoor unit Model 15 Model 20 Model 22 Model 25 M Series Model 42 Model 50 Model 60 Model 71 Model Capacity 19 29 2 2 2 5 2 Sample calculation 4 2 5 0 6 0 7 1 D System assembled from indoor and outdoor unit in this example the total capacity of the indoor units is greater
87. 2 S9jo e dsi HN eyep z a37 uo Aeldsiq peer prc N 115 OCH547 1die281 ANP uonoauoco ZH xeiN Jo ZH oseoJoep ANP uonoeuo9 ZH XeIN eseaJoep 1dieoe uonoaJoo ZH 103 jndu J01uoo jueuno 1 Kjepuooes 1 uonue eJd 1eau JUIS eJnsseJd jo esu jeuuouqe sulesjsed zey jueuno iepuooes 1 1940 1 JO esu Ssed q Aq ZH 10 AS eBueuosip Aq ZH JONUOD uone eunsseJd Aq 000 ZH eunsseJd efueuosiq 1u91uo2 SpJoM 1033009 zu Aouenbeuj 10sseJduioo ejes 9092 s Ayyewouge 0808 6666 10 666 uedo uous 6 666 6 66 OOLLOOLL LS aunjeladua jaued au 090820 s Aeuuouqe quvog suuv e 666 0 408 0 05 0000 OOLLOOLO OS UBUM enjeh UaLINO puooes aU Aueuuouge uonoojoJd ypeuuouge yjeuuouqe npou I
88. 4 OCH547 1302 High pressure trouble Abnormal points and detection methods Chart 1 of 4 Causes and check points 63H equipped model 63HS non equipped gt 1 High pressure abnormality 63H operation Abnormal if 63H operates during compressor operation 4 15MPa 63HS equipped model 63H non equipped gt 2 High pressure abnormality 63HS detected Abnormal if a pressure detected by 63HS exceeds 4 15MPa during compressor operation 63H High pressure switch 63HS High pressure sensor LEV Electronic expansion valve SV1 Solenoid valve TH7 Thermistor Ambient D Defective operation of stop valve not fully open Clogged or broken pipe Malfunction or locked outdoor fan motor Short cycle of outdoor unit Dirt of outdoor heat exchanger Remote controller transmitting error caused by noise interference Contact failure of the outdoor controller board connector 8 Defective outdoor controller board 9 Short cycle of indoor unit Decreased airflow clogged filter or dirt on indoor unit d Malfunction or locked indoor fan motor Decreased airflow caused by defective inspection of outdoor temperature thermistor It detects lower temperature than actual temperature Indoor LEV performance failure Malfunction of fan driving circuit SV1 performance failure 46 Defective high pressure sensor Defective high pressure sensor input circuit
89. 46 4 52 Current input A 12 87 12 32 11 80 15 97 15 27 14 64 20 86 19 95 19 12 kW kW 4 48 4 05 3 43 Temp range of Indoor temp W B 15 to 24 C cooling Outdoor temp D B 5 to 46 Heating capacity kW 2 14 0 16 0 18 0 Nominal 2 12 040 13 760 15 480 BTU h 2 47 768 54 592 61 416 Power input kW 3 04 3 74 4 47 Current input A 14 03 13 42 12 86 17 26 16 51 15 82 20 63 19 73 18 91 COP kW kW 4 61 4 28 4 03 Temp range of Indoor temp D B 15 to 27 C heating Outdoor temp 20 to 15 C Indoor unit Total capacity 50 to 130 of outdoor unit capacity connectable Model Quantity 15 125 9 15 140 10 15 140 12 E 491 5 50 62 51 53 Power pressure level dB lt A gt p measured in anechoic room Refrigerant Liquid pipe mm in 9 52 3 8 piping diameter Gas pipe mm in 15 88 5 8 FAN 2 Type x Quantity Propeller Fan x 2 Air flow rate m3 min 110 L s 1 833 cfm 3 884 Control Driving mechanism DC control Motor output kW 0 06 0 06 External static press 0 Compressor Type x Quantity Scroll hermetic compressor x 1 Manufacture Mitsubishi Electric Corporation Starting method Inverter Capacity control Cooling 26 to 100 Cooling 24 to 00 Cooling 21 to 100 Heating 20 to 100 Heating 18 to 100 Heating 17 to 100 Motor output kW 2 9 3 5 3 9 Case heater kW 0 Lubricant FV50S 2 3litter External finish Galvanized Steel Sheet Munsell No 3Y 7 8 1 1 External dimension HxWxD mm 1 338 x 1 050 x 330 25 in
90. Air inlet thermistor trouble TH21 or 510 Compressor temperature thermistor TH4 open short Liquid pipe temperature thermistor trouble TH22 Suction pipe temperature thermistor TH6 open short 5103 Gas pipe temperature thermistor trouble TH23 5105 Outdoor liquid pipe temperature thermistor TH3 open short 5106 Ambient thermistor TH7 open short 5109 pipe temperature thermistor TH2 open short 5110 Heat Sink temperature thermistor TH8 open short 5201 pressure sensor 63HS 5202 Low pressure sensor 63LS 5300 o Check delay code 1205 Check delay code 1221 Check delay code 1222 Check delay code 1214 Check delay code 1402 Check delay code 1400 Check delay code 4310 Only M NET Remote controller is detected 5701 Contact failure of drain float switch O 6600_ Duplexaddresseror _______ _ __ f 6602 processor hardware error 6603 _ TransmissionbusBUSYeror_ 6606_ Signal communication error with transmission processor ____ ___ 6607 NoACKemor CT 6608 Noresponseframeemo O 6831_ MA communication receive error no receive signal __ __ __ i icat jon oi O i i Only MA Remote controller is detected 6832 6833 6834 7100 7101 7102 7105 Address Note When the outdoor unit detects No ACK error No response error an object indoor uni
91. BAND CENTER FREQUENCIES Hz MODE SPL dB LINE PUMY P140VKM BS COOLING 51 o o PUMY P140YKM BS HEATING 53 e e 90 E S d 4 2 E T t t en F S 80 e e 70 a G jj 60 ul 2 w 50 gt a i 40 a a z E 5 30 r f 20 APPROXIMATE THRESHOLD OF a gt HEARING amp CONTINUOUS o NOISE E 10 63 125 250 500 1000 2000 4000 8000 BAND CENTER FREQUENCIES Hz OCH547 MODE sPL dB LINE PUMY P125VKM BS COOLING 50 PUMY P125YKM BS HEATING 52 e e 90 5 2 S 80 e e 5 a 70 a 60 gt al 50 2 o 8 q w 40 1 n i a 5 2 5 30 1 a PN GU 20 APPROXIMATE 5 po THRESHOLD Lr 2 mens pem NOISE O 10 I T 2 63 125 250 500 1000 2000 4000 8000 BAND CENTER FREQUENCIES Hz 1m 1 5m UNIT K 19 GROUND OUTLINES AND DIMENSIONS mm no pouy j jou reo 26 26 Ea 091
92. BM E 20VCM EQ 20VLMD E 2oveme 207810 oov E 20VLRM E E x VMA L E E 5 25VMS1 L E 25VLEM E 25VCM E 2 25VLMD E 25VBM E 25VBM E 25VLRM E VMA L E VKM E 2 32VCM E 2 RR 32VLEM E 32VLMD E 32VBM E 32VHM E 32VLRM E 32VBM E VMA L VKM E 2 40VCM E 2 40VLEM E 40vBM E S 40VKM E 40VLRM E 40VBM E VMA L E VMH E IX prem SVMS 50VBM E 50VLMD E I WA L EI VMH E 50VHM e E 50VLRM E SMS TL E 63VBM E 63VLMD E I WMA L E VMH E 63VKM E 63VKM E 63VLEM E 63VLRM E 4 L E VMH EA d 100VBM E 100VLMD E ronnie 100VKM E 100VKM E 100VM E AU TM E sn Decorative panel Name M NET remote controller MA remote controller M series remote controller PAR 21MAA PAR 30MAA PAR W21MAA when using PWFY remote controller for use in Addresses setting is not M series indoor unit 4 MSZ SF Series MSZ EF Series MSZ FH Series Model number PAR F27MEA E conjunction with the Melans centralized management system Addresses must be set Functions necessary 1 is connectable to Fresh Air type indoor unit It is possible to connect 1 Fresh Air type indoor unit to 1 outdoor unit 1 1 system Operating temperature range outdoor temperature for fresh air type indoor units differ from other indoor units Refer to 2 2 3
93. Bypass valve of the unit and remove the right side panel coil SV1 4 Remove the bypass valve coil fixing screw 6 5 Remove the bypass valve coil by sliding the coil upward gem Electronic 6 Disconnect the connector SV1 gray on the multi controller B y A ae circuit board in the electrical parts box c 7 Remove the electrical parts box See photo 5 ELE ail Bypass valve 8 Recover refrigerant zm 9 Remove the welded part of bypass valve Note 1 Recover refrigerant without spreading it in the air Note 2 The welded part can be removed easily by remov ing the right side panel Note3 When installing the four way valve cover it with a wet cloth to prevent it from heating 120 C or more then braze the pipes so that the inside of pipes are not oxidized High pressure switch 63H 10 Removing the high pressure switch 63H and high pres sure sensor 63HS 1 Remove the service panel See Photo 1 2 Remove the top panel See Photo 1 3 Remove 3 right side panel fixing screws 5 12 in the rear of the unit and remove the right side panel 4 Pull out the lead wire of high pressure switch and high pres sure sensor High pressure 5 Remove the electrical parts box See Photo 5 6 Recover refrigerant 7 Remove the welded part of high pressure switch and high pressure sensor Note 1 Recover refrigerant without spreading it in the air N
94. C unit Check the transmission line for transmission wave and noise y 91 OCH547 6831 6834 Abnormal points and detection methods Detected in remote controller or indoor unit When the main or sub remote controller cannot receive signal from indoor unit which has the 0 address When the sub remote controller cannot receive signal When the indoor controller board cannot receive signal from remote controller or another indoor unit Q When the indoor controller board cannot receve signal eDiagnosis of defectives Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Disconnect and reconnect the connector then turn the power back ON MA communication receive error Chart 1 of 2 Causes and check points Contact failure of remote controller wirings Irregular Wiring A wiring length number of connecting remote controllers or indoor units or a wiring thickness does not meet the conditions specified in the chapter Electrical Work in the indoor unit Installation Manual Malfunction of the remote controller sending receiving circuit on indoor unit with the LED2 is blinking Malfunction of the remote controller sending receiving circuit Remote controller transmitting error caused by noise interference No abnormality gt connector
95. Changes for the Better MITSUBISHI ELECTRIC SPLIT TYPE HEAT PUMP AIR CONDITIONERS February 2014 No OCH547 HFC utilized R410A TECHNICAL amp SERVICE MANUAL lt Outdoor unit gt Model Name Service Ref service manual PUMY P112VKM PUMY P112VKM describes technical data of the outdoor units only PUMY P125VKM PUMY P125VKM PUMY P140VKM PUMY P140VKM PUMY P112YKM PUMY P112YKM PUMY P125YKM PUMY P125YKM PUMY P140YKM PUMY P140YKM Salt proof model PUMY P112VKM BS PUMY P112VKM BS PUMY P125VKM BS PUMY P125VKM BS PUMY P140VKM BS PUMY P140VKM BS PUMY P112YKM BS PUMY P112YKM BS PUMY P125YKM BS PUMY P125YKM BS PUMY P140YKM BS PUMY P140YKM BS CONTENTS 1 SAFETY PRECAUTION mH 2 2 OVERVIEW OF UNITS rere eror eerte 5 3 aaa 7 AUDATAS e ene PIED EET 9 5 OUTLINES AND DIMENSIONS 20 6 WIRING ne 22 7 NECESSARY CONDITIONS FOR SYSTEM CONSTRUCTION 24 8 34 9 ELECTRICAL 123 10 REFRIGERANT PIPING TASKS 127 Model name 11 DISASSEMBLY PROCEDURE 131 indication OUTDOOR UNIT PARTS CATALOG OCB547 1 SAFETY PRECAUTION
96. Continued from the previous page Is there a resistance detected Yes lt 63H equipped model 63HS non equipped gt Is the connector for outdoor controller board 63H disconnected or loose Replace the SV1 Reconnect the connector or connect it tightly lt 63HS equipped model 63H non equipped gt Check the 63HS voltage Is there a voltage detected Replace the outdoor controller board gt gt gt Replace the 63HS Replace the outdoor controller board OCH547 48 1500 Superheat due to low discharge temperature trouble Chart 1 of 2 Abnormal points detection methods Causes and check points Abnormal if the discharge superheat is continuously detected less than Disconnection or loose connection of TH4 or equal to 15 C 5 F for 5 minutes even though the indoor LEV has Defective holder of TH4 minimum open pulse after the compressor starts operating for 10 minutes 3 Disconnection of LEV coil Disconnection of LEV connector LEV Electronic expansion valve LEV performance failure TH4 Thermistor Compressor 63HS High pressure sensor At this temperature conditions for the abnormality detection will not be satisfied if no abnormality is detected on either TH4 or 63HS eDiagnosis of defectives Make sure to t
97. FEL Aejap euin kejap Ajjeuuouge Jo Jequinu ue jo edsa SV OF awp ye joqunu days uey FOOOLLOL 61 Aejap Ajjeuuouqe euin ejop Ayjewsouge ye Aouanby jene jo Aejdsiq enisses6o1d 91 44 0 fousnbay enpy 0000000 82 kejap jjeuuouqe agind Buluado OLEELELL 22 ejop Ayjewuouge Ajijeuuouqe agind Buluado A31 4491 OLLLELLO 91 leri e E 000z 0 ejop yjeuuouqe jo ejdsiq AF1 OLJI OLLLLLOL SZ ejop jjeuuouqe asind 691 OLLLLLOO PZL 9 2100 9 98 100pu abue OLLLLOLL EZ A 9 091 9 25 00pu 61e OLLLLOLO ZZ jo Aeidsiq NONAS 2 0 91 HS 0S OLLLLOOL LZL 9 601 9 25 soopuja6veL OLLLLOOO OZ uoneJedo OLLLOLLL 6LL uoneJedo 944 0 J 40 4NO 0uueu L ue 44o jjj OLLLOLLO SLL yun soopul jo Aejdsiq 0191 OLLLOLOL LLL 69 OLLLOLOO 9 H0 1461 440 0uueu L uoneJedo uoneJedo uoneJedo uoneJedo fe dsip uo NO oUueu yun zL oON yun jun QL ON yun GON yun OLLLOOLL SEE 1461 dOLS NVA Buyse 146 uo 10BI AHQ 1009 un ZL oN yun ON QL ON
98. HK installation guidelines 50010 Outdoor unit Direction _ Of refrigerant flow Branch box Indoor unit All refrigerant of this system will leak out to this room if there is leakage at this indoor unit 10 2 2 Confirming procedure of R410A concentration Follow 1 to 3 to confirm the R410A concentration and take appropriate treatment if necessary 1 Calculate total refrigerant amount by each refrig erant system Total refrigerant amount is precharged refrigerant at ex factory plus additional charged amount at field installation Note When single refrigeration system consists of several inde pendent refrigeration circuit figure out the total refrigerant amount by each independent refrigerant circuit OCH547 2 Calculate room volumes m and find the room with the smallest volume The part with represents the room with the smallest volume a Situation in which there are no partitions Branch box Indoor unit b There are partitions but there are openings that allow the effective mixing of air Branch box Outdoor unit Situation in which there are no door openings or in which there are open ings above and below doors that occupy at least 0 15 of the floor area Indoor unit Opening c If the smallest room has mechanical ventilation appa ratus that is linked to a household gas detection and alarm device the calculations should be performed for the second s
99. P125YKM BS PUMY P140VMK BS PUMY P140YMK BS Thermistor TH7 So pressi Service port d Strainer Q y Refrigerant Gas pipe pel vang Solenoid Oil t High pressurd V valve SV1 Il separator switch 63H o LN Distributor Strainer High pressure Check valve sensor 63HS Low pressure Strainer 27 Thermistor TH3 Outdoor liquid pipe Thermistor TH6 Suction pipe THA Thermistor TH2 lt HIC pipe gt Stop valve pepe E Drum ue LL Refrigerant 6 Strainer Liquid pipe O Service port Refrigerant flow in cooling Refrigerant flow in heating Capillary tube for oil separator 2 5 40 8 x L1000 Refrigerant piping specifications lt dimensions of flared connector gt he eee Capacity Liquid piping Gas piping P15 P20 P25 P32 P40 P50 6 35 lt 1 4 gt 12 7 lt 1 2 gt Indoor unit P63 P80 P100 P125 P140 Outdoor unit P112 P125 P140 9 52 3 8 15 88 5 8 9 52 3 8 15 88 5 8 Note When connecting the CONNECTION KIT PAC LV11M J and an M series indoor unit refer to the installation manual for the CONNECTION KIT OCH547 25 pT 7 3 SYSTEM CONTROL 7 3 1 Example for the System Example for wiring control cables wiring method and address setting permissible lengths and the prohibited items are listed in the standard system with detailed explanation The explanation for the
100. Q Open or short Solenoid valve coil Measure the resistance between the terminals with a tester Bypass valve SV1 At the ambient temperature 20 Normal Abnormal 1182 5 83 Q Open or short Linear expansion Valve LEV A Normal Abnormal ray Orange Gray Black Gray Red Gray Yellow Gray Orange Red i Yellow Black 46430 Open or short Linear expansion Valve LEV B OH Blue Orange Yellow White OCH547 Normal Abnormal Red White Red Orange Red Yellow Red Blue 46 40 Open or short 107 Check method of DC fan motor fan motor outdoor controller circuit board Notes High voltage is applied to the connecter CNF 1 2 for the fan motor Pay attention to the service Do not pull out the connector CNF1 2 for the motor with the power supply on It causes trouble of the outdoor controller circuit board and fan motor Self check Symptom The outdoor fan cannot turn around Fuse check Check the fuse F500 on outdoor multi controller board lt Did the fuse blow gt Yes gt V No Wiring contact check Contact of fan motor connector CNF1 2 Replace outdoor controller board MULTI B C B and fan m
101. Remove the service panel See Photo 1 2 Remove the top panel See Photo 1 3 Remove 3 right side panel fixing screws 5 x 12 in the rear of the unit and remove the right side panel 4 Remove the bypass valve coil fixing screw 6 5 Remove the bypass valve coil by sliding the coil upward 6 Disconnect the connector SV1 gray on the multi controller circuit board in the electrical parts box 7 Remove the electrical parts box See Photo 5 8 Recover refrigerant 9 Remove the welded part of bypass valve Note 1 Recover refrigerant without spreading it in the air Note 2 The welded part can be removed easily by remov ing the right side panel Note3 When installing the bypass valve cover it with a wet cloth to prevent it from heating 120 C or more then braze the pipes so that the inside of pipes are not oxidized 10 Removing the high pressure switch 63H and high pres sure sensor 63HS 1 Remove the service panel See Photo 1 2 Remove the top panel See Photo 1 3 Remove 3 right side panel fixing screws 5 x 12 in the rear of the unit and remove the right side panel 4 Pull out the lead wire of high pressure switch and high pres sure sensor 5 Remove the electrical parts box See Photo 5 6 Recover refrigerant 7 Remove the welded part of high pressure switch and high pressure sensor Note 1 Recover refrigerant without spreading it in the air Note 2 The welded part
102. WE Note 0n the operating condition The temperature may differ depending gt Refer to the diagnosis of check code lt 1100 gt Does the drain pump work Is the drain level Y es gt Refer to the diagnosis of check lt 2502 gt Check the drain discharge system for Clean the drain unusually high Continue to the next page Clogged drain pump Clogged or reverse connection of drain pipe 55 OCH547 2500 eDiagnosis of defectives Water leakage Chart 2 of 2 Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Continued from the previous page els there an adhesion of water drops on the drain sensor els there a difficulty when pulling up the float switch manually Drain sensor Disconnect the connector for drain sensor CN31 and short circuit between pins 1 2 on the controller board then turn ON the emergency operation switch SWE Float switch Disconnect the connector for float switch CN4F and short circuit between pins 3 4 on the controller board then turn ON the emergency operation switch SWE Solve the problem Is the check code 2500 still displayed No abnormality The cause might be that the drain level was unusually high
103. abnormality and apply corrective measures Detected Unit Remarks ds Trouble ren Indoor Outdoor Controller 1102 1300 low pressure ____ S ___ 1302 High pressure 1 1500 _ Superheat due to low discharge temperature 1501 Refrigerant shortage Blocked valve in cooling mode Power board communication trouble Check delay code 1202 Check delay code 1402 Check delay code 1600 Check delay code 160 Check delay code 1501 Check delay code 608 Check delay code 4350 Check delay code 4320 O rx O fia p O JjOhekdelycode43300 O JjOhekdelycode4350 O JjOhedelycode4500 __ _______ code 122 __ _______ 120 oO oO x O O vo O O Sires O i em em 9 ol 1508 4 way valve trouble in heating mode 2500 Water leakage 2502 Drain over flow protection 2503 Drain sensor abnormality 4100 Compressor current interruption locked compressor ____ 4210 Compressor overcurrent interruption ____ 4220 Voltage shortage overvoltage PAM error L1open phase power synchronization signal error 4230 Heat Sink temperature 425 4400 Rotational frequency of outdoor fan motor
104. acing boards Diagnosis Check the model selection switch SW4 on the indoor controller board of the connected indoor unit Is it set properly gt Set the switch properly The model code of the connected indoor unit can be displayed by an operation of SW1 on the outdoor unit 97 OCH547 7102 Connecting excessive number of units Abnormal points detection methods Causes and check points When the connected AC unit exceeds the limit a check code lt 7102 gt is Connecting more AC units than the limit displayed Abnormal if connecting status does not comply with the following limit D Connectable up to 12 indoor units 9 Connect at least 1 indoor unit Abnormal if connected none Connectable only 1 ventilation unit eDiagnosis of defectives Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Remedy Check whether the connecting unit exceeds the limit or not Connect less number of units than the limit Does it exceed the limit Yes The model code of the connected indoor unit can be displayed by an operation of SW1 on the outdoor unit Check if at least 1 indoor unit is connected Is an indoor unit connected gt Connect indoor unit Yes Check whether the M NET line to the indoor unit
105. al gt Replace the thermistor The detected temperature of TH8 can be displayed by an operation of SW1 on the outdoor controller board SW1 Setting Display on LED1 2 Unit Check a temperature of TH8 999 9999 12345678 Replace the outdoor controller board Malfunction of thermistor circuit No abnormality gt Aconnector contact failure is suspected Is the detected temperature normal 78 OCH547 5201 High pressure sensor 63HS trouble Abnormal points detection methods Causes and check points When the detected pressure the high pressure sensor is 1kgf cm or D Defective high pressure sensor less during operation the compressor stops operation and enters into Decrease of internal pressure caused by gas an anti restart mode for 3 minutes leakage Q When the detected pressure is 1kgf cm immediately before restarting Disconnection or contact failure of connector the compressor falls into an abnormal stop with a check code 5201 G Malfunction of input circuit on outdoor controller For minutes after compressor restarting during defrosting operation board and for 3 minutes after returning from defrosting operation above mentioned symptoms are not determined as abnormal eDiagnosis of defectives Make sure to turn the power OFF before connecting disconnecting
106. al noise so check the transmission line to remove the factor s Is the wiring connected properly meeting the condition OCH547 6832 6833 eDiagnosis of defectives Abnormal points and detection methods MA communication send error Detected in remote controller or indoor unit Chart 1 of 2 Causes and check points There are 2 remote controllers set as main Malfunction of remote controller sending receiving circuit Malfunction of sending receiving circuit on indoor controller board Remote controller transmitting error caused by noise interference Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Disconnect and reconnect the connector then turn the power back ON Is the check code lt 6832 gt or lt 6833 gt still displayed T Diagnosis Remedy No abnormality Check the remote controller for main sub setting Is there only 1 remote controller set as the main controller gt A connector or wiring contact failure is suspected Set one remote controller to main remote Conduct the Remote Controller Diagnosis more than 2 times Is RC OK displayed on all remote controllers Note It takes 6 sec at maximum until the result is displayed Turn the power back ON 6 minutes Continue to
107. al points and detection methods Water leakage Chart 1 of 2 Causes and check points Abnormal if drain sensor or float switch detects to be in the water during cooling or dry operation To release this abnormality reset the power turn OFF and ON TH21 Indoor intake temperature thermistor TH22 Indoor liquid pipe temperature thermistor TH23 Indoor gas pipe temperature thermistor Reverse connection of extended piping when connecting multiple units Reverse connection of indoor outdoor connector Defective thermistor of TH21 or TH22 23 Defective drain sensor or float switch Defective drain pump Poor drainage Clogged drain pump Clogged drain pipe eDiagnosis of defectives Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Are there 2 or more Yes Are the refrigerant piping indoor units with different and the indoor outdoor connector refrigerant connected connected in the same unit Yes Start heating operation Solve the reverse connection or connect the connectors properly Check the temperature of TH22 23 if they are within appropriate range Are they within the range In heating operation The temperature difference between the intake and blowing air Approx 14 to 30 deg Piping temperature Approx 40 to 55 Turn ON the emergency operation switch S
108. al switch or wiring breaker Please take the larger of F1 or F2 as the value for FO F1 Total operating maximum current of the indoor units x 1 2 F2 V1 x Quantity of Type1 C V1 x Quantity of Type2 C V1 x Quantity of Type3 C V1 x Quantity of Others C Indoor unit V1 V2 6000 PLFY VBM PMFY VBM PEFY VMS Type 1 BCFY VKM PKFY VHM 18 6 2 4 ai 2 PEFY VMA 38 1 6 3 PEFY VMHS 13 8 4 8 60 Others Other indoor unit 0 0 C Multiple of tripping current at tripping time 0 015 Hi k SAMPLE Please pick up C from the tripping characteristic of the breaker E i im Example of F2 calculation d Condition PEFY VMS x 4 PEFY VMA x 1 8 refer to right sample chart o 0 01 5 F2 18 6 4 8 38 1 8 1 soa 2 S 14 05 16 breaker Tripping current 8 16 at 0 015 Current sensitivity is calculated using the following formula G1 V2 x Quantity of Type1 V2 x Quantity of Type2 V2 x Quantity of Type3 V2 x Quantity of Others V3 x Wire length km Rated Tripping current x G1 Current sensitivity 30 or less 30 mA 0 15 or less 100 less 100 mA 0 1sec or less Wire thickness V3 1 5 mm 48 2 5 mm 56 4 0 mm2 66 OCH547 124 _____ 9 3 DESIGN FOR CONTROL WIRING Please note that the type
109. allest address within the same group of indoor units Use an address other than the IC Main in the same group of indoor units IC Sub Bias This must be in sequence with the IC Main Use the smallest address of all the indoor units plus 50 Outdoor Unit 91 to 100 The address automatically becomes 100 if it is set as 01 50 Main Remote Controller 101 to 150 Setatan IC Main address within the same group plus 100 Sub Remote Controller 151 to 200 Setatan IC Main address within the same group plus 150 MA Remote Controller Unnecessary address setting Necessary main sub setting Wiring Method Address Settings h The group setting operations among the multiple indoor units is done by the remote controller RC after the electrical power has been turned on i When connecting PWFY unit For PWFY series do not set up group connection with other indoor units LOSSNAY is not available for use with PWFY series Use a WMA remote controller for operation of PWFY series For more details refer to the service manual for PWFY series OCH547 32 _____ O Name Symbol and the Maximum Units for Connection Longest length via outdoor unit M NET cable L1 L2 L3 L4 and Li L2 Le L7 2 500 m 1 25 mm more Longest transmission cable length M NET cable L1 and L3 L4 and Le and L2 Le and L7 2 200 m 1 25 mm or more Remote controller cable length m1 and m1 m2 m3 and mi m2 m3 m4 20
110. and disconnect the compressor lead wire OCH547 Noise filter circuit board NF b K a controller board MULTI B Front panel fixing Electrical parts box screws 5x12 Terminal block E M cal rrt xno CI screws f 4x10 Terminal block TB3 TB7 Valve bed M D ee H IN Lm LL I 4 o Front panel NYC fixing seres oe Cover panel fixing screws Continue to the next page 136 From the previous page OPERATING PROCEDURE PHOTOS amp ILLUSTRATION 6 Remove 2 electrical parts box fixing screws 4 x 10 Photo 5 and detach the electrical parts box by pulling it upward The electrical parts box is fixed with 2 hooks on the left a and 1 hook on the right Electrical parts box Electrical parts box fixing screws 4 Removing the thermistor lt Suction pipe gt TH6 Photo 6 Clamps 1 Remove the service panel See Photo 1 2 Remove the top panel See Photo 1 3 Disconnect the connectors TH6 and TH7 red on the Multi controller board in the electrical parts box 4 Loosen the wire clamps on top of the electrical parts box 5 Pull out the thermistor lt Suction pipe gt TH6 from the sen sor holder Note When replacing thermistor lt Suction pipe gt TH6 replace it together with thermistor lt Ambient gt TH7 since they are combined together Refer to procedure No 5 below
111. board 220 240VAC TH4 Thermistor Compressor TH3 Thermistor Outdoor liquid pipe TECIZ7 T6 3AL250V UL 6 3A 250V ECT27 T6 3AL250V UL 6 34 250V TH7 TH6 Thermistor Ambient Suction pipe i r2 63HS iL High pressure sensor i SV1 63LS 8 Bypass valve Low pressure sensor pin4 of PC511 or PC512 Same as CNF1 2 2184 Four way valve S55 0504 Q504 0503 psos Vsp CNF1 2 M Voc TEST POINTO Vcc TEST POINT Voltage between pins of Connect to fan motors Voltage between pins of C510 DC310V DC340V Y Voltage between pins of C515 and C516 0 0 DC310V 340V Y DC310V DC340V Y DC310V DC350V V 82 DC15V DCOV when stopped DC310V 350V V DC310V DC350V V G GY Same as CNF1 2 DC1 6 5V when operated DC15V Same as CNF1 2 O Same as CNF1 2 DCO 6 5V DC15V when stopped DC0 15V pulse when operated OCH547 110 _____ Outdoor power circuit board Brief Check of POWER MODULE n nes sually they are a state of being short circuited if they are broken PUMY P112VKM BS Measure the resistance in the following points connectors etc PUMY P125VKN BS If they are short circuited it means that they are broken 1 Check of POWER MODULE PUMY P140VKM BS Check of DIODE
112. ce of over heating or burning Disconnect the indoor LEV wiring and check the resistance Replace the outdoor controller board Is there a resistance detected Yes Replace the indoor LEV Replace the indoor controller board 41 OCH547 1300 Low pressure trouble Abnormal points and detection methods Chart 1 of 3 Causes check points lt 63L equipped model gt 1 Low pressure 63L is in operation Abnormal if 63L operates under 0 03MPa during compressor operation 63L LEV SV1 TH7 Low pressure switch Electronic expansion valve Solenoid valve Thermistor lt Ambient gt D Defective operation of stop valve not fully open Clogged or broken pipe Malfunction or locked outdoor fan motor Short cycle of outdoor unit Dirt of outdoor heat exchanger amp Remote controller transmitting error caused by noise interference Contact failure of outdoor controller board connector 8 Defective outdoor controller board 9 Short cycle of indoor unit Decreased airflow clogged filter or dirt on indoor unit Malfunction or locked indoor fan motor Decreased airflow caused by defective inspection of outdoor temperature thermistor It detects lower temperature than actual temperature Indoor LEV performance failure Malfunction of fan driving circuit SV1 performance failu
113. change as shown below SELF CHECK L Power on indicator Press the FILTER button to start self diagnosis SELF CHECK SELF gt EXPE RE P oa RL doi 9 Remote controller self diagnosis result When the remote controller is functioning correctly Check for other possible causes as there is no problem with the remote controller Where the remote controller is not defective but cannot be operated Error display 2 E3 6833 or 6832 flashes Transmission is not possible There might be noise interference on the transmission path or the indoor unit or other remote controllers are defective Check the transmission path and other controllers To cancel remote controller diagnosis When the remote controller malfunctions Error display 1 NG flashes The remote controller s transmitting receiv ing circuit is defective SELF CHECK pol Error display 3 ERC and the number of data errors are displayed Data error has occurred The number of data errors is the difference between the number of bits sent from the remote controller and the number actually transmitted through the transmis sion path If such a problem is occurring the transmitted data is affected by noise etc Check the transmission path t When the number of data errors is 02 Transmission data from remote controller T
114. cting circuit on outdoor power board Abnormal if any of following symptoms are detected 0 P112 125 140V model eDecrease of DC bus voltage to 200V elncrease of DC bus voltage to 400V eDC bus voltage stays at 310V or lower for censecutive 10 seconds P112 125 140Y model eDecrease of DC bus voltage to 350V eincrease of DC bus voltage to 760V eDecrease of primary current to 0 1A Note The detection is active only when the operational frequency is 40Hz or more or the compressor current is 6A or more eDiagnosis of defectives Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards The black square m indicates a switch position Diagnosis T open phase Disconnection of compressor wiring Disconnection of CN52C Disconnection of CN5 Disconnection of CN2 Is there any abnormality on wirings 18 Which sub code is displayed The sub codes displayed by an operation of SW1 on the outdoor controller board SW1 Setting Display on LED1 2 3 PAM error T ON 123 49 678 6 Input sensor trouble 1 PEE 7 Shortage voltage trouble 8 Overvoltage trouble 12345678 Does DC bus voltage raise to approx 350V at PAM driving Check the power supply facility Is there any abnormality on PAM wirin
115. curve charts Figure 1 2 show the change ratio of capacity and input power consumption according to the indoor and outdoor temperature condition when defining the rated capacity total capacity and rated input under the standard condition in standard piping length 5 m as 1 0 Standard conditions Rated cooling capacity BE zi ba WB 19 C Rated heating capacity doct EE 2 WB 6 C Use the rated capacity and rated input given in 4 3 Standard capacity diagram The input is the single value on the side of the outdoor unit the input on the sides of each indoor unit must be added to obtain the total input 2 The capacity of each indoor unit may be obtained by multiplying the total capacity obtained in 1 by the ratio between the individual capacity at the rated time and the total capacity at the rated time individual capacity at the rated time Individual capacity under stated conditions total capacity under the stated conditions x total capacity at the rated time 3 Capacity correction factor curve PUMY P112 125 140VKM BS PUMY P112 125 140YKM BS Figure 1 Figure 2 Cooling performance curve Heating performance curve 1 4 Coolin d 12 24 15 Capacity 22 20 ratio 20 1 0 25 19 INDOOR 08 neang lt D B C 18 Capacity 06 ratio 16 INDOOR Cooling 1 4 W B C Power T INDOOR consumpt
116. d 91 LLLLOOLO ZvC Ayyeusouge Jo eui esnd Buuado 95 LELLOOOL Lez 9 fejep jjeuuouge yjeuuouqe jo eun Jo awune 05 801 H 0000 Ove HS OS pue PE Aejap Ajjeuuou Uosues einsseud 6 666 61667 Y aup 791 PHOLL eez uBiu wos ejdsiq 9 Ayewuouge orto gez Jo euin je HS 2S 991 S v L 8199722 SION ejdsiq Bumes ON Kejdsip Laa1 99 uo LMS 122 OCH547 9 ELECTRICAL WIRING This chapter provides an introduction to electrical wiring for the CITY MULTI S series together with notes concerning power wiring wiring for control transmission wires and remote controller wires and the frequency converter 9 1 OVERVIEW OF POWER WIRING 1 Use a separate power supply for the outdoor unit and indoor unit 2 Bear in mind ambient conditions ambient temperature direct sunlight rain water etc when proceeding with the wiring and connections 3 The wire size is the minimum value for metal conduit wiring The power cord size should be 1 rank thicker consideration of voltage drops Make sure the power supply voltage does not drop more than 10 4 Specific wiring requirements should adhere to the wiring regulations of the region 5 Power supply cords of parts of appliances for outdoor use shall not be lighter than polychloroprene sheat
117. depending on the model Please refer to its wiring diagram 74 OCH547 Check code TRE Outdoor liquid pipe temperature thermistor TH3 open short Abnormal points and detection methods Causes and check points Abnormal if TH3 detects to be open short D Disconnection or contact failure of connectors The open short detection is disabled during 10 sec to 10 min after compressor starts during defrosting operation or for 10 min after returning from the defrosting operation Open 40 C or less Short 90 C or more TH3 Thermistor Outdoor liquid pipe Characteristic defect of thermistor Defective outdoor controller board eDiagnosis of defectives Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards T 9 The black square m indicates a switch position Diagnosis Remedy Check the wiring and connector connection of TH3 Is there any abnormality such as a disconnection looseness or Yes breakage Connect the wiring connector properly Replace it in case of a breakage Y Disconnect the connector to check the resistance of TH3 using a tester Is the detected resistance normal Replace the thermistor The detected temperature of TH3 can be displayed by an operation of SW1 on the outdoor controller board SW1 Setting Display on LED1 2 Un
118. display location b In making paired settings Turn off the remote controller The procedure is same as b in 2 Address check Put into the indoor unit address display mode The procedure is same as b in 2 Address check Put into the linked unit address display mode The procedure is same as b in 2 Address check Display the address of the Lossnay unit or the indoor unit to be cleared e Deleting the address of a linked indoor unit Pressing the 6 4 6 button on the remote controller twice will clear the address entry of the displayed indoor unit resulting in the display shown in Figure 8 Returning to the normal mode after clearing an address The procedure is same as b in 2 Address check Figure 8 Display after address has been cleared normally e INDOOR UNIT ADDRESS NO will appear in the unit type display location when an address has been cleared normally OA UNT ADDRESS NO alternating display 88 will appear in the unit type display location when an abnormality has occurred during clearing INDOOR UNIT ADDRESS NO UNIT ADDRESS NO OCH547 37 8 1 3 Countermeasures for Error During Test Run If a problem occurs during test run a code number will appear on the remote controller or LED on the outdoor unit and the air conditioning system will automatically cease operating Determine the nature of the
119. during unit operation and stop Releasing of forced outdoor unit stop Reset power supply of both abnormal indoor unit and its outdoor unit in same refrigerant system Forced outdoor unit stop cannot be released by remote controller OFF Note Above mentioned and 0 are detected independently GMalfunction of drain pipe is constantly detected during drain pump operation Malfunction of drain pump Defective drain Clogged drain pump Clogged drain pipe Water drops on drain sensor Drops of drain trickles from lead wire Clogged filter is causing wave of drain Defective indoor controller board Both of above mentioned and the indoor linear expansion valve full closed failure leakage happens synchronistically Note Address Attribute displayed on the remote controller shows the indoor unit which is the cause of trouble eDiagnosis of defectives Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Start cooling operation Does the drain pump work Is the drain level unusually high 15 there an adhesion of water drops on the drain sensor No Y Continue to the next page I Remove water drops Remedy Check the drain discharge system for Clean the drain pan Clogged drain pump Clogged or reverse connection of drain pipe Solve the proble
120. e 26 35 Pipe size Liquid pipe 99 52 connected indoor units indoor units 8 0 kW 1 5 kg m x 19 0 g m x 50 0 g m 8 1 16 0 kW 2 5 kg 16 1 kW Included refrigerant amount when shipped from the factory 3 0 kg Included refrigerant amount lt Example gt Outdoor model P125 Indoor 1 P63 7 1 kW A 29 52 30m a 29 52 15m 2 P40 4 5 kW b 26 35 10m V At the conditions 3 P25 2 8 kW 86 35 10m below 4 P20 2 2 kW d 26 35 20m The total length of each liquid line is as follows 99 52 A a 30 15 45m 26 35 6 10 10 20 40 The total capacity of connected indoor unit is as follows 7 1 4 5 28 2 2 16 6 Calculation example Additional refrigerant charge 19 0 50 0 40 199g 49 1000 3 0 6 1 kg rounded up 128 Note Pipe re branching after the header branching T is not possible Method of Combined Branching of Lines and HS Headers 7 TE Connection Examples x E Connecting to 5 Indoor Units c d e 1 1 1 4 5 Outdoor unit First branching branching l joint Branching joint Indoor unit D Branching header Blind caps E Total Piping Length A B C atb c dte is 300 meters or less ier Farthest Piping Length L A B b is 150 meters or less Farthest Pip
121. e cause of displayed address and attribute is on Lossnay side An abnormality detected by the indoor unit if receiving no ACK when the indoor unit transmit signal to the Lossnay An abnormality is detected when the indoor unit transmits signal to Lossnay while the Lossnay is turned OFF Q While the indoor unit is operating with the other refrigerant Lossnay an abnormality is detected when the indoor unit transmits signal to the Lossnay while the outdoor unit with the same refrigerant system as the Lossnay is turned OFF or within 2 minutes after it turned back ON 9 Contact failure of indoor unit or Lossnay transmission line Q Disconnection of transmission connector CN2M on indoor unit Malfunction of sending receiving circuit on indoor unit or Lossnay The controller of displayed address and attribute is not recognized The previous address unit does not exist since the address switch was changed while in electric continuity status abnormality detected at transmitting from the indoor unit since the Fresh Master Lossnay address are changed after synchronized setting of Fresh Master Lossnay by the remote controller 88 OCH547 6607 eDiagnosis of defectives Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis No ACK error Chart 3 of 4 Procedure 1 Turn the power OFF of indoor outdoor unit Fresh Master Lossnay and remote c
122. e malfunction of transmission processor normally transmitted eDiagnosis of defectives Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Turn the power OFF of indoor outdoor unit Fresh Master Lossnay and remote controller simultaneously for 2 minutes or more then turn the power back ON gt Replace the controller i 2 Doge ir operate normally Defect of error source controller Yes There is no abnormality on the AC unit It might be caused by an external noise so check the transmission line to remove the factor s 86 OCH547 6607 Abnormal points detection methods O Represents a common error detection An abnormality detected by the sending side controller when receiving no ACK from the receiving side though signal was once sent The sending side searches the error in 30 seconds interval for 6 times continuously No ACK error Chart 1 of 4 Causes check points The previous address unit does not exist since the address switch was changed while in electric continuity status Decline of transmission voltage signal caused by tolerance over on transmission line At the furthest end 200m On remote controller line 12m Decline of transmission voltage signal due to unmatched transmission line types Types for shield line CVVS CPEVS Line diameter 1 25 mm or
123. e refrigerant left in unit completely 2 Do not release refrigerant in the air 3 After completing service charge the cycle with specified amount of refrigerant 4 When performing service install a filter drier simultaneously Be sure to use a filter drier for new refrigerant 2 Additional refrigerant charge When charging directly from cylinder Check that cylinder R410A on the market is syphon type Charging should be performed with the cylinder of syphon stood vertically Refrigerant is charged from liquid phase 3 Service tools Use the below service tools as exclusive tools for R410A refrigerant Tool name Specifications Gauge manifold Only for RA10A Use the existing fitting specifications UNF 1 2 Use high tension side pressure of 5 3MPa G or over Charge hose Only for RA10A Use pressure performance of 5 09 or over Electronic scale Gas leak detector Use the detector for R134a R407C or R410A Adaptor for reverse flow check Attach on vacuum pump Refrigerant charge base Refrigerant cylinder Only for RA10A Top of cylinder Pink Oylinder with syphon Refrigerant recovery equipment 1 2 PRECAUTIONS FOR SALT PROOF TYPE BS MODEL Although BS model has been designed to be resistant to salt damage observe the following precautions to maintain the performance of the unit 1 Avoid installing the unit in a location wh
124. e size Additional Charge Calculation of refrigerant charge Pipe size Liquid pipe 26 35 m x 19 0 g m Pipe size Liquid pipe 99 52 m x 50 0 g m Included refrigerant amount Example Outdoor model Indoor 1 P63 7 1 kW 29 52 30m a P125 Amount for the indoor units Total capacity of connected indoor units 8 0 kW 1 5kg 8 1 16 0 kW 2 5 kg 16 1 kW 3 0 kg Included refrigerant amount when shipped from the factory 99 52 15m 2 P40 4 5 kW b 6 35 10m 3 P25 2 8 kW 26 35 10m 4 P20 2 2 kW d 26 35 20m The total length of each liquid line is as follows 99 52 A a 30 15 45 26 35 6 10 10 20 40 The total capacity of connected indoor unit is as follows 71 45 2 8 2 2 16 6 lt Calculation example gt Additional refrigerant charge 19 0 50 0 71900 45 x 1000 3 0 6 1 kg rounded up At the conditions and length of the extended piping and total capacity of below connected indoor units Calculate the additional refrigerant charge using the procedure shown to the right and charge with the additional refrigerant For amounts less than 0 1 kg round up the calculated additional refrigerant charge For example if the calculated charge is 6 01 kg round up the charge to 6 1 kg x OCH547 127 Header Branch Method Connection Examples Connecting to 4 Indoor Uni
125. en phase Is the power supply normal Check the bus voltage at the test points listed below on the outdoor power board using a tester V model CNDC 1 2pin Y model N2 P2 Is the bus voltage normal gt Replace the outdoor power board The difference of the voltage between the C Trouble of an in put current detection one read by the LED1 and 2 and the one at circuit is suspected the testpoints listed above is large Replace the outdoor power board Defective outdoor power board Check the power supply facility Check if a receiving electricity is lowered 68 OCH547 4230 Heat Sink temperature trouble Abnormal points detection methods Causes and check points Abnormal if TH8 detects a temperature outside the specified range during Blocked outdoor fan compressor operation Malfunction of outdoor fan motor Blocked airflow path TH8 Thermistor Heat Sink Rise of ambient temperature 5 Characteristic defect of thermistor Malfunction of input circuit on outdoor power board Malfunction of outdoor fan driving circuit eDiagnosis of defectives Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Is 5110 displayed when restart gt gt Refer to the diagnosis of check code 5110
126. er supply X E Relay circuit Procure locally i i X m External output adapter PAC SA88HA E 10m i O id Yee i 51 Outdoor unit control board E E iq L i Sto L3 i il l i i i 1 L1 Error display lamp me ene ii i L2 Compressor operation lamp S i i i X Y Relay Coil standard of 0 9W or less for DC 12V Smaa eseri Relay DC1mA e Auto change over CN3N a amp eg 9 p ux Qe 2 Remote control panel Relay power supply ii Relay circuit Procure locally i SW1i i X i qi CN3N External input adapter PAC SC36NA E 10 1 e ic Outdoor unit control board i i i L204 i sw2i i 3 i 9 ON OFF i Dod pd i MENU Y i SW1 Heating Cooling i ji i SW2 Validity of SW1 Invalidity of SW1 PEE IARE TE NAR e E d c e Silent Mode Demand Control CN3D EEEE CE PEINE O nt M Remote control panel Relay power supply i S i vi i i Relay circuit Procure locally ie Wii i X i CN3D External input adapter PAC SC36NA E Max 10 i 2L Outdoor unit control board i SW2i i i 3 pog Y il HY H ll ii o bod c The silent mode and the demand control are selected by switching the DIP switch 9 2 on outdoor controller board It is possible to set it to the following power consumption compared with ratings
127. ere it will be exposed directly to seawater or sea breeze 2 If the cover panel may become covered with salt be sure to install the unit in a location where the salt will be washed away by rainwater If a sunshade is installed rainwater may not clean the panel 3 To ensure that water does not collect in the base of the outdoor unit make sure that the base is level not at angle Water collecting in the base of the outdoor unit could cause rust If the unit is installed in a coastal area clean the unit with water regularly to remove any salt build up If the unit is damaged during installation or maintenance be sure to repair it Be sure to check the condition of the unit regularly Be sure to install the unit in a location with good drainage NOOO OCH547 3 _____ O Cautions for refrigerant piping work New refrigerant R410A is adopted for replacement inverter series Although the refrigerant piping work for R410A is same as for R22 exclusive tools are necessary so as not to mix with different kind of refrigerant Furthermore as the working pressure of R410A is 1 6 times higher than that of R22 their sizes of flared sections and flare nuts are different D Thickness of pipes Because the working pressure of R410A is higher compared to R22 be sure to use refrigerant piping with thickness shown below Never use pipes of 0 7 mm or below Diagram below Piping diameter and thickness Nominal Outside dimension
128. es Cut the pipes Tools for other refrigerants can be used Tools for other refrigerants can be used Welder and nitrogen gas cylinder Refrigerant charging scale Weld the pipes Refrigerant charge Tools for other refrigerants can be used Tools for other refrigerants can be used Vacuum gauge or thermis tor vacuum gauge and vacuum valve Check the degree of vacuum Vacuum valve prevents back flow of oil and refri gerant to thermistor vacuum gauge Tools for other refrigerants can be used Charging cylinder Refrigerant charge Tool exclusive for R410A X Prepare a new tool Use the new tool as the tool exclusive for R410A A Tools for other refrigerants can be used under certain conditions O Tools for other refrigerants can be used OCH547 2 OVERVIEW OF UNITS 2 1 UNIT oe Outdoor unit PUMY EE M BS PUMY P125VKM PUMY P140VKM PUMY P112YKM BS PUMY P125YKM PUMY P140YKM Capacity ______ Type 15 Type 125 Type 15 Type 140 Applicable indoor unit Number of units 1 7 10 unit 1 12 unit Total system wide capacity 50 130 of outdoor unit capacity 2 3 CMY Y62 G E CMY Y64 G E CMY Y68 G E Branching pipe Branch header Branch header Branch header components 2 branches 4 branches 8 branches Cassette Ceiling Ceili Ceilin Floor standing E Air to Water CONNECTION PLY Remote controller TEVMST DE 15V
129. est running make test run reports 8 1 1 1 Test run for M NET Remote controller When you deliver the unit after the test run instruct the end user for proper usage of the system using owners manual and the test run report you made to certificate normal operation If abnormalities are detected during test run refer to 8 1 3 Countermeasures for Error During Test Run As for DIP switch setting of outdoor unit refer to 8 5 INTERNAL SWITCH FUNCTION TABLE M NET Remote controller Check code indicator see NOTE 1 Test run remaining time indicator see NOTE 3 ate MITSUBISHI ELECTRIC Indoor unit liquid pipe temperature indicator see NOTE 4 Display panel TEST RUN indicator Cres RUN ONOFF ON OFF LED Lights up in operation Cooling Heating OO e ON OFF button OPERATION O B OT Tab SWITCH button CO CO COLICO co C AIR DIRECTION button ERE 385 20 CHECK TEST a CD Coo TEST RUN button LOUVER button FAN SPEED button amp Control panel Operation procedure Turn on the main power supply of all units at least 12 hours before test run HO appears on display panel for 3 min 12 hours later press TEST RUN button twice to perform test run TEST RUN appears on display panel Press OPERATION SWITCH b
130. euy Jenae jo fejdsiq 91 34 0 jeuoneredo 01000000 Jojsiuueu pue Josues Woy ejdsiq 6666 66 66 fajeuuouge OIH ZHL OOLLLELL fejep Ayyewuouge O1K ZHL OOLLLLLO edid IH ZHL 00LLLLOL 57 29 00LLLLOO fejop Ayjewuouge S169 OOLLLOLL QuopB eunsseud w01 S169 00LLLOLO 100pino Jo asind Aejdsiq yjeuuouqe asind Buiuedo g 37 00 00LLLOOL ejop jjeuuouqe asind 9 37 00 00LLL000 asjnd 8 314J00pinO OOLLOLLL Ayyeuuouge asind Buiuedo v A31 400pino 00LLOLLO kejap Ayjewuouge asind Buiuedo y A37 Joopjno 00LLOLOL asjnd Buiuedo 100pinO 00LL0LOO 9 v eyep z L 437 eu uo Aejdsiq ejdsiq 8199722 Dunes LMS 117 OCH547 kejap Ajewuouge Buluado LOOOOLLL SEL kejap jjeuuouqe sind 79 0000 10 PEL Ajjeuuouqe kejap euin Joopur 0002 0 000010 EL es nd Buluado Aejaq sel 19 jjeuuouqe agind Buluado 201 10000100 ejop Ayjewuouge Buluado jjj 0000013
131. exchanger Wash the indoor heat exchanger dirty Wash the outdoor heat exchanger Are pipes clogged or broken Yes gt Defective pipes Disconnect the outdoor temperature thermistor wiring and check the resistance Is there a resistance detected gt Replace the TH7 Disconnect the indoor LEV wiring to check the resistance Is there a resistance detected gt Replace the indoor LEV Ta Check the voltage and appearance of the outdoor controller board Is the voltage normal Is it free from any trace of over gt Replace the indoor controller board heating or burning Continue to the next page 43 OCH547 Check code 1300 Low pressure trouble eDiagnosis of defectives Chart 3 of 3 Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Continued from the previous page Check the resistance of SV1 Remedy Is there a resistance detected Yes 63L equipped model Is the connector for outdoor Replace the SV1 controller board 63L disconnected or Yes loose Reconnect the connector or connect it tightly gt Replace the outdoor controller board 4
132. float switch gt Contact failure of connector CN4F Abnormal if the connector on the drain float switch side CNAF is detected Defective indoor controller board to be disconnected eDiagnosis of defectives Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards lt Models equipped with the float switch gt Disconnect and reconnect the connector for float switch on the indoor controller board side then turn the power back ON No abnormality Is the check code connector or wiring contact failure is still displayed suspected Check if it is short circuited between pins 3 4 of the connector CN4F on the float Switch side Is it short circuited Replace the connector for float switch Yes gt Replace the indoor controller board 82 OCH547 6600 Duplex address error Abnormal points detection methods Causes and check points Abnormal if 2 or more units with the same address are existing There are 2 units or more with the same address in their controller among outdoor unit indoor unit Fresh Master Lossnay or remote controller Noise interference on indoor outdoor connectors eDiagnosis of defectives Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Remedy Search for a un
133. follows by using the formula in 4 1 2 1 Model 25 16 33 x 2 8 2 75kW 19 0 6 3 o 5 41kW Model 50 16 33 x 19 0 4 2 STANDARD OPERATION DATA REFERENCE DATA Operation PUMY P112VKM YKM BS PUMY P125VKM YKM BS PUMY P140VKM YKM BS Ambient Indoor DB 27 C 19 C 20 C 27 C 19 20 C 27 C 19 C 20 C temperature Outdoor WB 35 C 7 C 6 C 35 C 7 C 6 35 C 7 C 6 No of connected units Unit 2 2 2 Indoor unit No of units in operation 2 2 2 Operating Model 50 x 1 63 x 1 63 x 2 63 x 1 80x1 conditions Main pipe 5 5 5 Piping Branch pipe m 2 5 2 5 2 5 Total pipe length 10 10 10 Fan speed Hi Hi Hi Amount of refrigerant kg 1 2 7 2 12 Electric current A 16 17 5 26 17 38 5 67 21 67 7 12 21 91 7 22 25 84 8 58 25 54 8 48 Outdoor unit Voltage V 230 400 230 400 230 400 Compressor frequency Hz 67 69 84 86 96 96 xd Indoor unit Puse 357 421 447 525 514 586 opening Pressure High pressure Low pressure MPa 2 70 0 94 2 86 0 70 2 86 0 88 2 87 0 67 2 95 0 85 2 95 0 65 Discharge 67 0 71 9 69 7 72 1 70 7 73 2 Outdoor Heat exchanger outlet 40 2 2 0 40 8 1 3 43 7 0 9 Temp of unit Accumulator inlet C 8 7 1 0 8 0 0 2 5 6 0 6 each section Compressor inlet 10 7 1 3 9 1 0 1 7 8 0 7 LEV inlet 18 9 32 4 17 7 33 0 17 0 33 4 Indoor unit
134. g 15 5104 displayed when restart Yes 5104 1501 Check relevant thermistor wirings and connector contacts of the controller boards Is there any abnormality on connectors such as a disconnection half disconnection or breakage Disconnect the thermistor wiring and check the resistance Continue to the next page Refer to the diagnosis of check code 5104 Connect the connector properly Repair or replace it in case of a breakage 51 OCH547 1501 Refrigerant shortage trouble eDiagnosis of defectives Chart 2 of 2 Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Remedy Continued from the previous page Is there a resistance detected gt Check the 63HS voltage Replace the thermistor Is there a voltage detected Check the voltage and appearance of the outdoor controller board Is the voltage normal value Is it free from any trace of over Replace the 63HS heating or burning Disconnect the indoor LEV wiring and check the resistance Replace the outdoor controller board Is there a resistance detected Replace the indoor LEV Replace the indoor controller board 52 OCH547
135. g screws 2 Remove the top panel See Photo 1 3 Remove 4 fan grille fixing screws 5 x 12 to detach the fan grille See photo 1 4 Remove a nut for right handed screw of M6 to detach the propeller See Photo 2 5 Disconnect the connectors CNF1 and CNF2 on multi con troller board in electrical parts box 6 Remove 4 fan motor fixing screws 5 x 20 to detach the fan motor See Photo 3 Fan motor fixing screws 3 Removing the electrical parts box 1 Remove the service panel See Photo 1 2 Remove the top panel See Photo 1 Disconnect the connecting wire from terminal block A F octrical 4 Remove all the following connectors from multi controller board a Diagram symbol in the connector housing is ii sii Multi controller Fan motor CNF1 CNF2 board MULTI B Thema st ape i m Thermistor Outdoor liquid pipe TH3 ege IM Thermistor Compressor TH4 I i TA MA Terminal block Themistor lt Sicon pelAmbien Outdoor mi ETEA igh pressure suiten 2h E Bu eae High pressure sensor 63HS Lu tpi alee Low pressure sensor 63LS ques l i ass valve Pull out the disconnected wire from the electrical parts box dan 22 z 5 Remove the terminal cover and disconnect the compressor TI lead wire Front panel fixing screws 5 x 12 lt a N Front panel iii 3 7 fixing screws il 10 screws
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137. gnosis Check the connection of the communication line CN2 and CN4 between the outdoor controller board and power board Connect the CN2 and CN4 properly Are they connected normally gt Replace them in case of a breakage The communication circuit of either the outdoor controller board or power board is defective If unable to identify the defective circuit Replace the outdoor controller board if it doesn t recover Replace the outdoor power board 39 OCH547 1102 Compressor temperature trouble Chart 1 of 2 Abnormal points detection methods Causes and check points 1 Abnormal if TH4 falls into following temperature conditions Malfunction of stop valve 2 Over heated compressor operation caused by shortage of refrigerant Defective thermistor Defective outdoor controller board LEV performance failure eexceeds 110 C 230 F continuously for 5 minutes eexceeds 125 C 257 F 2 Abnormal if a pressure detected by the high pressure sensor and converted to saturation temperature exceeds 40 C 104 F during defrosting and TH4 exceeds 110 C 230 F Defective indoor controller board Clogged refrigerant system caused by foreign TH4 Thermistor lt Compressor gt object LEV Electronic expansion valve Refrigerant shortage while in heating operation Refrigerant liquid accumulation in compressor while indoor unit is
138. gs Yes gt Correct the wiring 15 there any abnormality at the PAM circuit on the outdoor power Yes Replace the outdoor power board board Defective outdoor power board 15 there any abnormality at controller board the PAM power supply circuit on the Replace the outdoor controller board Breakage of wiring for PAM controlling power supply and such PAM error Y Y Continue to the next page OCH547 67 E Voltage shortage Overvoltage PAM error L1 open phase 4220 Power synchronization signal error Chart 2 of 2 eDiagnosis of defectives Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards The black square m indicates a switch position Diagnosis Continued from the previous page Is CN5 connected proper without any contact failure gt gt gt Yes gt Malfunction of noise filter ACCT Replace the outdoor power board Defective outdoor power board Y The bus voltage can be displayed by an operation of SW1 on the outdoor controller Check the bus voltage read by the microprocessor ho with an operation of SW1 on the outdoor controller SWISe ng DisplayonLED1 2 Unit board ON 0 999 9 V 12345678 Decrease of power supply voltage L1 op
139. he downward blow operation has been continued for 1 hour At defrosting in heating hot adjusting and thermostat OFF it automatically changes over to horizontal blow Fan setting changes during heating Normal display Ultra low speed operation is commenced at thermostat OFF Light air automatically change over to set value by time or piping temperature at thermostat ON Fan stops during heating operation Defrost X The fan is to stop during defrosting Fan does not stop while operation has been stopped Light out Fan is to run for 1 minute after stopping to exhaust residual heat only in heating No setting of fan while start SW has been turned on STAND BY rt Ultra low speed operation for 5 minutes after SW ON or until piping temperature becomes 35 C There low speed operate for 2 minutes and then set notch is commenced Hot adjust control Indoor unit remote controller shows HO or PLEASE WAIT indicator for about 2 minutes when turning ON power supply HO blinks PLEASE WAIT blinks System is being driven Operate remote controller again after HO or PLEASE WAIT disappears Drain pump does not stop while unit has been stopped After a stop of cooling operation unit continues to operate drain pump for 3 minutes and then stops it Drain pump continues to operate while unit has been stopped OCH547 Unit continues to operate drain
140. hed flexible cord design 60245 IEC57 For example use wiring such as YZW 6 Install an earth longer than other cables AN Warning Be sure to use specified wires to connect so that no external force is imparted to terminal connections If connections are not fixed firmly it may cause heating or fire Be sure to use the appropriate type of overcurrent protection switch Note that generated overcurrent may include some amount of direct current AN Caution Some installation site may require attachment of an earth leakage breaker If no earth leakage breaker is installed it may cause an electric shock Do not use anything other than breaker and fuse with correct capacity Using fuse and wire or copper wire with too large capacity may cause a malfunction of unit or fire Be sure to install N Line Without N Line it could cause damage to the unit 9 2 WIRING OF MAIN POWER SUPPLY AND EQUIPMENT CAPACITY 9 2 1 Wiring diagram for main power supply PUMY P112VKM BS PUMY P125VKN BS PUMY P140VKM BS Breaker for Wiring and Current Leakage Power supply single phase 50Hz 220 230 240V Outdoor unit Grounded Breaker for Wiring Pull box Power supply and Current Leakage single phase 50Hz 220 230 240V H D r Grounded PUMY P112YKM BS PUMY P125YKM BS PUMY P140YKM BS Breaker for Wiring and Current Leakage Power supply 3phase 380 400 415V 50Hz Outdoor un
141. in the air oP sereis Separator wa fixing screw 14 Removing the accumulator 1 Remove the service panel See Photo 1 2 Remove the top panel See Photo 1 3 Remove 2 front cover panel fixing screws 5 x 12 and remove the front cover panel See Photo 4 4 Remove 4 back cover panel fixing screws 5 x 12 and remove the back cover panel 5 Remove the electrical parts box See Photo 5 6 Remove 3 valve bed fixing screws 4 x 10 and 4 ball valve and stop valve fixing screws 5 x16 and then remove the valve bed See Photo 4 and 7 7 Remove 3 right side panel fixing screw 5 x 12 in the rear of the unit and then remove the right side panel 8 Recover refrigerant 9 Remove 2 welded pipes of accumulator inlet and outlet 10 Remove 2 accumulator leg fixing screws 4 x 10 See Photo 15 Note Recover refrigerant without spreading it in the air Photo 14 Photo 15 Accumulator Accumulator leg Accumulator leg fixing screws OCH547 135 PUMY P112YKM BS PUMY P125YKM BS PUMY P140YKM BS OPERATING PROCEDURE Note Turn OFF the power supply before disassembly PHOTOS amp ILLUSTRATION 1 Removing the service panel and top panel 1 Remove 3 service panel fixing screws 5 x 12 and slide the hook on the right downward to remove the service panel 2 Remove screws 3 for front 3 for rear 5 x 12 of the top panel and remove it Photo
142. ing Length After First Branch B b is 30 meters or less Permissible High High Low Difference in Indoor Outdoor Section 50 meters or less If the outdoor unit is lower 40 meters or less Low Difference High Low Difference in Indoor Indoor Section h 15 meters or less Selecting the Refrigerant Branch Kit Please select branching kit which is sold separately from the table below The kit comprises sets for use with liquid pipes and for use with gas pipes Branch Joint Branch Header 4 branches Branch Header 8 branches CMY Y62 G E CMY Y64 G E CMY Y68 G E W Select Each Section of Refrigerant Piping 1 Refrigerant Piping Diameter In Section 2 Refrigerant Piping Diameter In Section From Outdoor Unit to First Branch Out From Branch to Indoor Unit Indoor Unit 1 Section From Outdoor Unit door Unit Piping Diameter Piping Diameter to First Branch A Each Model Piping Diameter mm Model number Piping Diameter mm a Yen 2 Sections From Branch to Section of PUMY P112 Liquid Line 9 52 Liquid eine 6 35 Indoor Unit a b c d e Pipin PUMY P125 Gas Line 12 7 3 Section From Branch to ping PUMY P140 Gas Line 15 88 Liquidline 9 52 Branch B C 6310140 Gas Line 15 88 Select the size from the table to the right 3 Refrigerant Piping Diameter In Section Note Erom Branch Branch When connecting the CONNECTION KIT
143. ion 24 D B C ratio 22 1 0 35 20 Heating 15 0 8 19 18 consumption 25 ratio 0 6 04 16 INDOOR 0 2 W B C 15 10 0 10 20 30 40 46 Outdoor D B C Outdoor W B C OCH547 17 ss 4 4 2 Correcting Capacity for Changes in the Length of Refrigerant Piping 1 During cooling obtain the ratio and the equivalent piping length of the outdoor units rated capacity and the total in use indoor capacity and find the capacity ratio corresponding to the standard piping length from Figure 3 Then multiply by the cooling capacity from Figure 1 to obtain the actual capacity 2 During heating find the equivalent piping length and find the capacity ratio corresponding to standard piping length from Figure 3 Then multiply by the heating capacity from Figure 2 to obtain the actual capacity 1 Capacity Correction Curve Figure 3 Cooling 1 00 SO 7 42 778 Heating 0 95 III 0 90 LLLI 1 2 5 Heating 112 125 140 models se 0 85 2 0 80 g gt 0 75 0 70 Cooling P112 model 0 65 Cooling P125 model Cooling P140 model 0 60 0 55 0 50 0 20 40 60 80 100 120 140 160 180 200 Corrected pipe length 2 Method for Obtaining the Equivalent Piping Length Equivalent length for type 112 125 140 length of piping to far
144. it The remote controller does not operate though is displayed The transmission line of the indoor outdoor unit is connected to TB15 The transmission line of the indoor outdoor unit is shorted down or badly contacted 2 For MA remote controller systems Symptom or inspection code Cause Check the part where the abnormality occurs The entire system In the entire refrigerant system In same group only 1 indoor unit only n case of the entire system in the entire refrigerant system Check the self diagnosis LED of the outdoor unit Check the items shown in the left that are related to the outdoor unit n case of in same group only or 1 indoor unit only Check the items shown in the left that are related to the indoor unit Inspection method and solution Though the content of operation is displayed on the remote controller some indoor units do not operate The power supply of the indoor unit is not on Wiring between indoor units in same group is not finished The indoor unit and Slim model are connected to same group The fuse on the indoor unit controller board is blown Though the indoor unit operates the display of the remote controller goes out soon The power supply of the indoor unit Master is not on In case of connecting the system controller the setting of the system controller does not correspond to that of MA remote cont
145. it Grounded Breaker for Wiring Pull box Power supply and Current Leakage Single phase 50Hz 220 230 240V Indoor unit Grounded OCH547 123 pT 9 2 2 Cross section area of Wire for Main Power and ON OFF capacities PUMY P112VKM BS PUMY P112YKM BS PUMY P125VKM BS PUMY P125YKM BS PUMY P140VKM BS PUMY P140YKM BS Minimum Wire Cross sectional area mm Breaker Breaker for Power Supply Main B h G d for Wiring Current Leakage Model Cable rang roun P112 220 230 240 V 32 A 30 mA 0 1 sec Outdoor 140V 50 Hz 5 5 6 5 5 6 32A or less Unit P112 3N 380 400 415 V 15 _ 15 16 A 16 30 mA 0 1 sec 140Y 50 Hz or less A breaker with at least 3 0 mm contact separation in each poles shall be provided Use non fuse breaker NF or earth leakage breaker NV Minimum wire thickness Local switch A Total operating current mm Breaker for of the indoor unit Main p Ground fault interrupter wiring NFB Cable ranch Ground Capacity Fuse FO 16A or less 1 5 1 5 1 5 20 A current sensitivity 16 16 20 FO 25A or less 2 5 2 5 2 5 30 A current sensitivity 25 25 30 FO 32A or less 4 0 4 0 4 0 40 A current sensitivity 32 32 40 Apply to IEC61000 3 3 about max permissive system impedance The Ground fault interrupter should support inverter circuit The Ground fault interrupter should combine using of loc
146. it Check a temperature of TH3 ON Cc OFF 99 9 999 9 12345678 Is the detected temperature normal gt Replace the controller board Malfunction of thermistor circuit No abnormality Aconnector contact failure is suspected Y 75 OCH547 5106 Ambient thermistor TH7 open short Abnormal points and detection methods Causes and check points Abnormal if TH7 detects to be open short Disconnection or contact failure of connectors Open 40 or less Characteristic defect of thermistor Short 90 C or more TH7 Thermistor Ambient Defective outdoor controller board eDiagnosis of defectives Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards The black square m indicates a switch position Diagnosis Check the wiring and connector connection of TH7 Is there any abnormality such as a disconnection looseness or Yes breakage Connect the wiring connector properly Replace it in case of a breakage Disconnect the connector to check the resistance of TH7 using a tester Is the detected resistance normal Replace the thermistor The detected temperature of TH7 can be displayed by an operation of SW1 on the outdoor controller board SW1 Setti Display on LED1 2 i Check a temperature of TH7 ane
147. it with the same address as the source of abnormality 15 there any unit with the same Yes Correct the address and turn the power address OFF of indoor outdoor unit Fresh Master or Lossnay simultaneously for 2 minutes or more then turn the power back ON Y Turn the power back ON Malfunction of sending receiving circuit on N TN indoor outdoor unit is suspected Does it operate normally Yes There is no abnormality on the AC unit It might be caused by an external noise so check the transmission line to remove the factor s 83 OCH547 6602 Transmission processor H W error Abnormal points detection methods Causes and check points Abnormal if the transmission line shows 1 although the transmission transmitting data collision occurred because of a processor transmitted 0 wiring work or polarity change has performed while the power is ON on either of the indoor outdoor unit Fresh Master or Lossnay Malfunction of transmitting circuit on transmission processor 8 Noise interference on indoor outdoor connectors eDiagnosis of defectives Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis If the wiring work was performed while the power ON turn the power OFF of indoor outdoor unit Fresh Master or L
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149. l parts Connect to the out input Connect to the phases 10 V 180 V AC box door controller circuit terminal block TB1 board CNAC OCH547 111 Ss Outdoor power circuit board PUMY P112YKM BS PUMY P125YKN BS PUMY P140YKM BS Brief Check of POWER MODULE Usually they are in a state of being short circuited if they are broken Measure the resistance in the following points connectors etc If they are short circuited it means that they are broken 1 Check of DIODE MODULE L1 P1 L2 P1 3 1 21 L2 N1 23 INT 2 Check of DIP IPM P2 U 2 P2i IW 2 0 IN2 V Note The marks 1 12 113 IN1 2 0 and W shown in the diagram are not actually printed on the board TB U TB V TB W Connect to the compressor MC TB P3 Voltage among phases Connect to the DCL 10V 400V AC Diode module TB P1 Connect to e00000000000000 the DCL TAB connec tor on X52CA Connect to the RS resistor TB L2 TB L3 Connect to the outdoor noise filter circuit board
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151. llowing table shows whether conventional tools can be used or not Tools and materials Gauge manifold Charge hose Air purge refrigerant charge and operation check R410A tools Tool exclusive for R410A Can R22 tools be used 36 0 Can R407C tools be used Tool exclusive for R410A Gas leak detector Gas leak check Tool for HFC refrigerant Refrigerant recovery equipment Refrigerant cylinder Refrigerant recover Refrigerant charge Tool exclusive for R410A Tool exclusive for R410A Applied oil Apply to flared section Ester oil ether oil and alkylbenzene oil minimum amount Ester oil ether oil O Alkylbenzene oil minimum amount Safety charger Prevent compressor malfunction when charging refrigerant by spraying liquid refrigerant Tool exclusive for R410A x Charge valve Prevent gas from blowing out when detaching charge hose Tool exclusive for R410A x x Vacuum pump Vacuum drying and air purge Tools for other refrigerants can be used if equipped with adop ter for reverse flow check A Usable if equipped with adopter for rever se flow A Usable if equipped with adopter for rever se flow Flare tool Flaring work of piping Tools for other refrigerants can be used by adjusting flaring dimension A Usable by adjusting flaring dimension A Usable by adjusting flaring dimension Bender Pipe cutter Bend the pip
152. m Remove foreign substance such as dusts 57 2502 eDiagnosis of defectives lt Drain sensor models gt Drain overflow protection Chart 2 of 3 Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Continued from the previous page Diagnosis 15 the resistance of drain sensor normal lt How to check the resistance gt Replace the drain sensor Disconnect the connector for drain sensor from the indoor controller board to check the resistance using a tester 6 0kQ 10 C 3 9kO 20 C 2 6kQ 25 C 2 2 0 30 C 1 8KQ 40 C 1 60 C 0 6kQ Disconnect the connector for drain sensor CN31 and short circuit between pins 1 2 on the controller board then start cooling operation Is the connector CNP connected properly lt Drain Sensor gt 10 9 Resistance kQ 20 0 20 40 60 Temperature C 80 No abnormality The cause might be that the drain level was unusually high Restore the drain sensor and operate the unit Turn ON the emergency operation switch SWE Is AC200V output on the connector CNP Yes Continue to the next page Connect the connector CN4 properly Is the check code ly lt 2502 gt still displayed Yes gt Y gt Re
153. mallest room Branch box Outdoor unit Ventilation apparatus gt Indoor unit The smallest room The second smallest room 3 Use the results of calculations 1 and 2 to cal culate the refrigerant concentration Total refrigerant in the refrigerating unit kg Maximum concentration kg m The smallest room in which an indoor unit has been installed m Maximum concentration of R410A 0 3kg m If the calculation results do not exceed the maximum concen tration perform the same calculations for the larger second and third room etc until it has been determined that nowhere the maximum concentration will be exceed 130 11 DISASSEMBLY PROCEDURE PUMY P112VKM BS PUMY P125VKN BS PUMY P140VKM BS Note Turn OFF the power supply before disassembly OPERATING PROCEDURE PHOTOS amp ILLUSTRATION 1 Removing the service panel and top panel Photo 1 Top panel fixing screws OP Panel 1 Remove 3 service panel fixing screws 5 x 12 and slide the hook on the right downward to remove the service i E oone panel panel Co memm ixing screw 2 Remove screws 3 for front 3 for rear 5 x 12 of the top Grille fixing panel and remove it screws Service panel Fan grille Grille fixing screws 3 A Service panel 4 fixing screws 2 Removing the fan motor MF1 MF2 Photo 2 Photo 3 1 Remove the service panel See Photo 1 Propeller Front panel Fan motor fixin
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155. ndoor side and Outdoor side intake air temperature W B 15 5 to 35 C D B 21 to 43 C P140 5 to 20 W B 15 5 to 35 Thermo OFF FAN mode automatically starts if the outdoor temp is lower than 21 C D B Thermo OFF FAN mode automatically starts if the outdoor temp is higher than 20 D B m When connecting Air to Water Unit Cooling Heating Indoor side intake water temperature D B 10 to 45 Outdoor side intake air temperature 1 W B 20 to 15 C 1 PWFY series can operate in Heating mode but not in Cooling mode An indoor unit other than that of PWFY series operate in Cooling mode A PWFY series and other series cannot operate simultaneously The operation of PWFY series takes precedence over other series While a PWFY series is operating other series do not operate The set temperature on the remote controller represents the target temperature of the outlet water OCH547 3 SPECIFICATIONS Model PUMY P112VKM BS PUMY P125VKM BS PUMY P140VKM BS Power source 1 phase 220 240 V 50 Hz Cooling capacity kW 1 12 5 14 0 15 5 Nominal kcal h 1 10 750 12 040 13 330 BTU h 1 42 650 47 768 52 886 Power input kW 2 79 3
156. nect the connector for drain sensor from the indoor controller board to check the resistance using a tester lt Drain Sensor gt 0c 6 0kQ 10 C 3 9kO 8 20 C 2 6kQ 25 2 2kQ S 30 C 1 8 Hi 40 C 1 5 5 60 0 6kQ 8 20 0 20 40 60 80 Temperature C 62 OCH547 4100 Compressor current interruption Locked compressor Chart 1 of 2 Abnormal points and detection methods after the compressor starts operating eDiagnosis of defectives Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Abnormal if overcurrent of DC bus or compressor is detected 30 seconds Causes and check points D Closed stop valve 2 Decrease of power supply voltage 8 Looseness disconnection or converse of compressor wiring connection Model selection error upon replacement of indoor controller board 9 Defective compressor Defective outdoor power board Diagnosis Check the stop valve Is the stop valve liquid gas fully open Check the power supply voltage Open the stop valve liquid gas fully Is the power supply voltage normal Ex Turn the power OFF to check for looseness disconnection or phases of the compressor wiring gt Ensure power suppl
157. nnectors or replacing boards Diagnosis Check the fuse on the outdoor controller board Replace the outdoor controller board Is the fuse blown es Replace the fan motor blown Not blown Check the fan motor connector CNF1 and 2 for a disconnection or looseness Is there any abnormality such as a disconnection looseness or Yes breakage Connect the wiring connector properly Replace it in case of a breakage Remove the fan motor by disconnecting the fan motor connector CNF1 and CNF2 then check the voltage of outdoor controller board Test points are VocDC approx 280 to 380V fan connector 1 4 VccDC approx 15V fan connector 5 4 Is the voltage normal 2 Replace the outdoor controller board gt Replace the fan motor 71 OCH547 Check code 5101 Compressor temperature thermistor TH4 open short lt Detected in outdoor unit gt Abnormal points and detection methods Causes and check points Abnormal if TH4 detects to be open short D Disconnection or contact failure of connectors The open short detection is disabled for 10 minutes after compressor Characteristic defect of thermistor starts during defrosting operation or for 10 minutes after returning from the defrosting operation Open 3 C or less Short 217 Cor more TH4 Thermistor Compres
158. o perform group settings and paired settings at making group settings of different refrigerant systems multiple outdoor unit A Group settings Enter the indoor unit controlled by the remote controller check the content of entries and clear entries etc B Paired settings Used to set the linked operation of a Lossnay unit 1 Entering address Follow the steps below to enter the addresses of the indoor unit using the remote controller a Group settings Turning off the remote controller Press the ON OFF button to stop operation the indicator light will go off e Changing to indoor unit address display mode If the FILTER and S buttons on the remote controller are pressed simul taneously and held for 2 seconds the display shown in Figure 1 will appear e Changing address Press the temperature adjustment COC buttons to change the displayed address to the address to be entered Entering the displayed address Press the TEST RUN button to enter the indoor unit with the displayed address The type of the unit will be displayed as shown in Figure 2 if entry is completed normally If a selected indoor unit does not exist an error signal will be displayed as shown in Figure 3 When this happens check whether the indoor unit actually exists and perform entry again e Returning to the normal mode after completing entry Press the FILTER and xx buttons simultaneously and hold for 2 seconds to return to the normal mode Figu
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160. ol system eDiagnosis of defectives Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Check whether the transmission line to the indoor unit Fresh Master Lossnay or remote controller is miswired to the terminal block TB7 on outdoor unit or not Correct the wiring then turn the power back ON Is the transmission line miswired om Not miswired Check whether the transmission line with the other refrigerant system of the indoor unit Fresh Master or Lossnay is miswired to the terminal block TB3 on outdoor unit or not Yes miswired Is the transmission line miswired gt ENT wiring then turn the power miswired Not miswired Turn the power back ON Replace the indoor outdoor controller 2 Does it operate normally Feared There is no abnormality on the AC unit It might be caused by an external noise so check the transmission line to remove the factor s 85 OCH547 6606 Signal communication error with transmission processor Abnormal points detection methods Causes and check points Abnormal if the data of unit transmission processor were not normally Accidental disturbance such as noise or lightning transmitted surge Abnormal if the address transmission from the unit processor was not Hardwar
161. oller is connected to the transmission line of the indoor outdoor unit The remote controller does not operate though is displayed OCH547 The power supply of the indoor unit Master is not on The transmission line of the indoor outdoor unit is connected to TB15 The transmission line of the indoor outdoor unit is shorted down or badly contacted The fuse on the indoor unit controller board is blown 102 Check the part where the abnormality occurs The entire system In the entire refrigerant system In same group only 1 indoor unit only In case of the entire system or in the entire refrigerant system Check the self diagnosis LED of the outdoor unit Check the items shown in the left that are related to the outdoor unit In case of in same group only or 1 indoor unit only gt Check the items shown in the left that are related to the indoor unit pT 8 4 THE FOLLOWING SYMPTOM DO NOT REPRESENT TROUBLE EMERGENCY Symptom Display of remote controller CAUSE Even the cooling heating operation selection button is pressed the indoor unit cannot be operated Cooling blinks The indoor unit can not cool Heat if other indoor units are heating Cooling The auto vane runs freely Normal display Because of the control operation of auto vane it may change over to horizontal blow automatically from the downward blow in cooling in cause t
162. ontroller simultaneously for 2 minutes or more then turn the power back ON There is no abnormality on the AC unit Is the abnormality reproduced Check the address switch the source of abnormality It might be caused by an external noise so check the transmission line to remove the factor s Set the address properly then perform the 15 it set properly Check the transmission line for disconnection and looseness on the terminal board and connector The transmission line is connected procedure 1 Connect the transmission line properly properly Check the transmission line whether it exceeds the tolerance or not It is not exceeding the tolerance Check whether the correct kind of transmission line is used or not Continue to the next page then perform the procedure 1 Correct it within the tolerance then perform the procedure 1 OCH547 89 6607 eDiagnosis of defectives Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards No ACK error Chart 4 of 4 Diagnosis Continued from the previous page Remedy Apply the correct kind of transmission line Is the correct kind of transmission line used gt Y
163. ossnay simultaneously for 2 minutes or more then turn the power back ON A wiring work was performed while the power OFF Turn the power back ON Y Does it operate normally Replace the indoor outdoor controller board Yes There is no abnormality on the AC unit It might be caused by an external noise so check the transmission line to remove the factor s Y 84 OCH547 6603 Transmission bus BUSY error Abnormal points detection methods Causes and check points error by collision D The transmission processor is unable to transmit due Abnormal if no transmission status caused by a transmitting data to a short cycle voltage such as noise is mixed on collision is consecutive for 8 to 10minutes the transmission line Abnormal if a status that data is not allowed on the transmission line The transmission processor is unable to transmit due because of noise and such is consecutive for 8 to 10 minutes to an increase of transmission data amount caused by a miswiring of the terminal block transmission line TB3 and the terminal block centralized control line TB7 on the outdoor unit The share on transmission line becomes high due to a mixed transmission caused by a malfunction of repeater on the outdoor unit which is a function to connect disconnect transmission from to control system and centralized contr
164. ote 2 The welded part can be removed easily by remov ing the right side panel Photo 12 Note 3 When installing the high pressure switch and high pressure sensor cover them with a wet cloth to prevent them from heating 100 C or more then braze the pipes so that the inside of pipes are not oxidized 11 Removing the low pressure sensor 63LS 1 Remove the service panel See Photo 1 2 Remove the top panel See Photo 1 3 Remove 3 right side panel fixing screws 5 x 12 in the rear of the unit and remove the right side panel 4 Disconnect the connector 63LS blue on the multi controller circuit board in the electrical parts box 5 Remove the electrical parts box See Photo 5 6 Recover refrigerant 7 Remove the welded part of low pressure sensor Note 1 Recover refrigerant without spreading it in the air Note 2 The welded part can be removed easily by remov ing the right side panel Note 3 When installing the low pressure sensor cover it Low pressure Electronic expan Electronic expan with a wet cloth to prevent it from heating 100 C sensor 63LS sion valve coil sion valve or more then braze the pipes so that the inside LEV A of pipes are not oxidized 12 Removing electronic expansion valve LEV A LEV B 1 Remove the service panel See Photo 1 2 Remove the top panel See Photo 1 3 Remove 3 right side panel fixing screws 5 12 in the rear of the unit and remove the right side panel
165. otor MF1 2 4 4 Is there contact failure Yes gt Power supply check Remove the connector CNF1 2 Measure the voltage in the outdoor controller circuit board TEST POINT Voc between 1 and 4 of the fan connector Voc DC310 340V Y Voc between 1 and 4 of the fan connector Voc DC280 340V when ACTM stops DC350V when ACTM is operating V TEST POINT Vcc between 5 and 4 of the fan connector Vcc DC15V 4 lt Is the voltage normal gt Yes gt C Replace the fan motor Y Yes OK Check the operation of fan END Replace outdoor controller board NG C Replace outdoor controller board J Check the operation END NG Replace the fan motor OCH547 108 pT 8 8 HOW TO CHECK THE COMPONENTS lt Thermistor feature chart gt Low temperature thermistors Thermistor lt HIC pipe gt TH2 Thermistor lt Outdoor liquid pipe gt TH3 Thermistor lt Suction pipe gt TH6 Thermistor lt Ambient gt TH7 Thermistor 15 3 B constant 3480 2 96 Rt 15 3480 Su E 33 15 30 C 4 3 kQ 10C 9 6 kQ 40 C 3 0 kQ 20C 63kQ 25 C 52kQ Medium temperature thermistor Only YKM Thermistor Heat sink TH8 Thermistor R50 17 2 96 B constant 4170 3 96 1 1 Rt 17exp 4170
166. ove the 4 way valve coil by sliding the coil toward you 4 Disconnect the connector 2154 green on the multi con troller board in the electrical parts box Removing the 4 way valve 1 Remove the service panel See Photo 1 2 Remove the top panel See Photo 1 3 Remove the electrical parts box See photo 5 4 Remove 3 valve bed fixing screws 4 x 10 and 4 ball valve and stop valve fixing screws 5 x 16 and then remove the valve bed See Photo 4 and 7 5 Remove 4 right side panel fixing screw 5 x 12 in the rear of the unit and then remove the right side panel 6 Remove the 4 way valve coil See Photo 10 7 Recover refrigerant 8 Remove the welded part of four way valve Note 1 Recover refrigerant without spreading it in the air Note 2 The welded part can be removed easily by remov ing the right side panel Note 3 When installing the four way valve cover it with a wet cloth to prevent it from heating 120 C or more then braze the pipes so that the inside of pipes are not oxidized Photo 10 4 way valve coil 2154 4 way valve 4 way valve coil fixing screw OCH547 133 OPERATING PROCEDURE PHOTOS 9 Removing bypass valve coil SV1 and bypass valve Photo 11 1 Remove the service panel See Photo 1 Electronic expansion 2 Remove the top panel See Photo 1 Bypass valve coil LEV B 3 Remove 3 right side panel fixing screws 5 x 12 in the rear coil fixing screw
167. p Shielded Wire Sub Remote Controller y Address Never connect together the terminal blocks TB5 for transmission wires for indoor units IC that have been connected to different outdoor units OC Set all addresses to ensure that they are not overlapped M NET remote controller and MA remote controller cannot be connected with the indoor unit of the same group wiring together OCH547 29 ss C Example of a MA remote controller system address setting is not necessary NOTE In the case of same group operation need to set the address that is only main indoor unit Example of wiring control cables Wiring Method and Address Setting 1 Standard operation a Use feed wiring to connect terminals M1 and M2 T on transmission cable block TB3 for the outdoor unit OC to terminals M1 and M2 on the transmis sion cable block TB5 of each indoor unit IC Use non polarized 2 wire 00 00 Connect terminals 1 and 2 on transmission cable terminal block TB15 for each indoor unit with the terminal block for the MA remote controller MA TB7 TBS TB15 TB5 7815 m 5 1 remote controller for each indoor unit 2 Operation using two remote controllers The same as above a b The same as above b c In the case of using 2 remote controllers connect terminals 1 and 2 on t
168. p operation the indicator light will go off e Locate the indoor unit address display mode Press the FILTER and SZ buttons on the remote controller simultaneously and hold for 2 seconds Display indoor unit address The entered indoor units address and type will be displayed each time the button is pressed When 1 entry is made only 1 address will be displayed no matter how many times the button is pressed e Returning to the normal mode after completing check Simultaneously press the FILTER and buttons on the remote controller and hold for 2 seconds to return to the normal mode b In making paired settings Turn off the remote controller Press the remote controllers ON OFF button to stop operation the indicator light will go off Put in indoor unit address display mode Press the FILTER and Sx buttons on the remote controller simultaneously and hold for 2 seconds e Changing to the linked operation unit address display state Press the 7t amp 3 6 button on the remote control Displaying the address of the indoor unit to be checked Change the address to that of the indoor unit to be checked by pressing the temperature adjustment buttons C4 2C Displaying the address of the linked Lossnay unit Press the button to display the addresses of the linked Lossnay and indoor unit in alternation Displaying the addresses of other entered units The addresses of the other entered units will be displayed in alternating
169. peuuouqe jo eun Je HS OS pue sJojsiuueuj einsseJd u amp iu Aejdsiq 6 666 6 66 epoo Ayoeded 89 LLOLOLOL yoede 9 1 010100 opoo Ayoeded 99 jo eun HS 2S 99 LLOLOOLL LLOLOOLO yjeuuouge jo eun je HS OS 0 LLOLOOOL yjeuuouge eun je 95 29 1 010000 yjeuuiouqe jo eun je 95 29 LLOOLLLL yjeuuouge Jo euni HS 2S 01 ewuouge jo eun je s 20 LLOOLLLO LLOOLLOL S v z Lq31 eu uo Aejdsiq e dsiq 849Sv c lI Dunes LMS 121 OCH547 asind Guuado 0000010 9 asind 200 asind Buluado jo ejdsiq 000z 0 Suluedo A31 1191 LLLLLLOO 292 asind 31019 000014 792 esind A371 620 LLLLLOLO 0SZ Ayjeuouge LLLLOLLO 9 yjeuuouqe jo eum e 95 891 HS OS pue yjeuuiouqe 40sues eunssejd 6 666 6 66 jo eun HS OS 79 LLLLOLOL SvC yBiy Ayyewsouge lLoLOO ppz jo euin ie HS S 93 Ayyeusouge Jo eui sand ae fes LLLLOOLL evz Ayjeuuouqe jo euin Jo eum A31 Joopul Jo o asind Buluado jo 0002 0 agin
170. place the indoor controller board OCH547 58 lt Drain sensor models gt 2502 Drain overflow protection Chart 3 of 3 eDiagnosis of defectives Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Remedy Continued from the previous page Check the voltage on both ends of the branch connector Is AC200V output Check the branch connector for breakage or contact failure gt Replace the drain pump 59 OCH547 2502 Abnormal points and detection methods Drain pump DP Judge whether the sensor is in the water or in the air by turning the float switch ON OFF In the water Detected that the float switch is ON for 15 seconds In the air Detected that the float switch is OFF for 15 seconds When the float switch remains to be turned ON for minutes after detected to be in the water the drain pump is judged to be abnormal and lt 2502 gt will be displayed Note It takes 3 minutes and 15 seconds to detect abnormality including the time to judge to be in the water GThe unit continue to detect abnormality while turned off When the conditions below 1 2 and forced outdoor unit stop condition are met 1 Detected that liquid pipe temperature room temperature 10deg for 30 minutes constantly 2 Float switch detects to be in the water for 15 minutes constantly No
171. ple When the compressor and SV1 are turned during cooling operation 1 23 45 67 8 E 40201 Eo 01 C 1 MODEL SELECTION The black square m indicates a switch position MODELS sw4 swa PUMY P112VKM o BR cr mi PUMY P425VKM oF PUT o ui PUMY P140VKM oF BR an PUMY P112YKM BS PUMY P125YKM BS PUMY P140YKM BS SYMBOL NAME TB1 Terminal Block Power Supply 6315 eaus TH6
172. put power board CN1 Connect to the terminal block TB1 Q 5 Q ch 0 5 z 72 3 3 m a ME m t c a e 4 8 GD1 _ e Ri gt Connect to the elec trical parts box t t N N o 9 k Connect to the electrical parts box CNAC2 AC220 230 240V Connect to the out door controller circuit board CNAC xL bak l l TIT TIT CNDC Connect to the outdoor controller circuit board CNDC CNL _ BLUE t Connect to the ACL4 NCT 2 1 Primary current Connect to the outdoor CNCT power circuit board s QY tens 01 LO2 LO3 POWER SUPPLY LO1 LO2 LO2 LO3 LO3 LO1 AC380 400 415V OUTPUT Connect to the outdoor power circuit board and ACL TB L 1 TB L2 TB L3 OCH547 114 ON LL 9 LES E 7 8 10 OUTDOOR UNIT FUNCTIONS j quint jun Joopul g oN pede OOOLLLLO 1590 eu YIM sseuppe eu gun sooput pop apoo pede OOOLLLOL 62 UJ04J NUN ON 99 992 0 in 1oopu oN apoo foede 00011100 92 epee yun sooput z oy apoo COOLLOLL 22 iia ee yun zooputj apoo foede COOLLOLO
173. r Characteristic defect of thermistor compressor starts during defrosting operation or for 10 min after returning from the defrosting operation Open 40 C or less Short 90 C or more TH6 Thermistor Suction pipe 8 Defective outdoor controller board eDiagnosis of defectives Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards The black square m indicates a switch position Diagnosis Check the wiring and connector connection of TH6 Is there any abnormality such as a disconnection looseness or Yes breakage Connect the wiring connector properly Replace it in case of a breakage Disconnect the connector to check the resistance of TH6 using a tester Is the detected resistance normal Replace the thermistor The detected temperature of TH6 can be displayed by an operation of SW1 on the outdoor controller board Check a temperature of TH6 SWi Setting _ Display on LED1 2 _Unit a 99 9 999 9 12345678 Is the detected temperature normal gt Replace the controller board Malfunction of thermistor circuit No abnormality A connector contact failure is suspected Y T3 OCH547 Air inlet thermistor trouble TH21 Liquid pipe temperature thermistor trouble TH22 Gas pipe temperature thermistor trouble
174. ransmission cable terminal block TB15 for each indoor unit with the terminal block for 2 remote controllers Set the sub remote controller position for one of MA remote controller s main switch Refer to the installation manual of MA remote con troller TB3 TB7 Using 2 remote controllers for each indoor unit 3 Group operation The same as above a oc b The same as above b c Connect terminals 1 and 2 on transmission cable terminal block TB15 of each indoor unit which is doing group operation with the terminal block the MA remote controller Use non polarized 2 wire In the case of same group operation need to set the address that is only main indoor unit Please set the smallest address within number 01 50 of the indoor unit with the most functions in the same group TB3 TB7 Multiple indoor units operated together by 1 remote controller Combinations of 1 through 3 above are possible OCH547 30 Permissible Lengths Prohibited items Longest transmission cable length L1 L2 200m 1 25 mm MA remote controller cable length 1 2 200m 0 3 1 25 mm TB3 TB7 The MA remote controller
175. ransmission data on transmission path n Press the CHECK button for 5 seconds or more Remote controller diagnosis will be cancelled PLEASE WAIT and operation lamp will flash After approximately 30 seconds the state in effect before the diagnosis will be restored OCH547 100 _____ For MA remote controller system Select Service from the Main menu and press the button Service menu 2 2 Maintenance password Cw gt Remote controller check Function setting Select Remote controller check with the 1 F2 button and press the 2 button Main menu 5 ERE uc 99e 2 Select Remote controller check from the Service menu and press Remote controller check the 2 button to start the remote controller check and see the check re sults wy Start checking To cancel the remote controller check and exit the Remote controller Begin V check menu screen press the or the 5 button v The remote controller will not reboot itself ok No problems are found with the remote controller Check other Remote controller check results screen parts for problems Remote controller check E3 6832 There is noise on the transmission line or the indoor unit or another remote controller is faulty Check the transmission line and the SEn drekin other remote controllers NG ALLO ALL1 Send receive circuit faul
176. rate normally S Check for indoor outdoor short cycle Are those units short cycled no short cycled short cycled gt W phase properly then turn the power back ON Check the DC fan motor Disconnect the compressor wiring from the outdoor power board then check the voltage among each phases U V and W during test run SW7 1 ON Are the voltage among the phases U V V W and W U different Yes gt Remove factor s causing the short cycle Make sure to perform a voltage check with the same performing Replace the outdoor controller board Does it operate normally Yes frequencies gt Replace the compressor gt Replace the outdoor power board gt Complete OCH547 66 4220 Voltage shortage Overvoltage PAM error L1 open phase Power synchronization signal error Chart 1 of 2 Abnormal points and detection methods Causes and check points D Decrease increase of power supply voltage or T open phase Disconnection of compressor wiring Malfunction of 52C Disconnection or contact failure of CN52C 9 Defective outdoor power board Malfunction of 52C driving circuit on outdoor controller board Disconnection of CN5 8 Disconnection of CN2 Malfunction of primary current dete
177. re 46 Defective low pressure sensor Malfunction of low pressure sensor input circuit on outdoor controller board eDiagnosis of defectives Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Is the outdoor stop valve liquid gas fully open Does the outdoor fan rotare while the operation 4 Does the indoor fan rotate while the operation d Is the indoor unit short cycled no short cycle 4 Is the indoor unit filter clogged no clog Continue to the next page gt Open the stop valve liquid gas fully Check the outdoor fan motor gt Refer to How to check the parts on outdoor unit service manual Check the indoor fan motor Refer to How to check the parts on indoor unit service manual short cycled filter clogged Solve the short cycle Clean the filter OCH547 42 1300 Low pressure trouble Chart 2 of 3 eDiagnosis of defectives Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Remedy Continued from the previous page Is there dirt on the indoor heat exchanger ae no dirt Is the outdoor unit short cycled Yes gt Solve the short cycle short cycled c no short cycle Is there dirt on the outdoor heat
178. re 1 A Group setting display Figure 2 Normal completion of entry Figure 3 Entry error signal moe moe eae INDOOR UNIT ADDRESS NO INDOOR UNIT INDOOR UNIT ADDRESS ADDRESS Type of unit is displayed Flashing 88 indicates entry error b Paired Settings Turn off the remote controller Press the remote controller s ON OFF button to turn it off the indicator light will go off e Put in indoor unit address display mode Press the FILTER and Sx buttons on the remote controller simultaneously and hold for 2 seconds Note The above steps are the same as when making group settings A e Changing to the linked operation unit address display state The display shown in Figure 4 will appear when the 1 6 button on the remote control is pressed Displaying the address of the Lossnay unit and linked indoor unit In this situation the indoor unit number will be the lowest address of the group The Lossnay unit will not operate if this setting is incorrect Notes 1 1 the temperature adjustment C4 2C v buttons are pressed the address may be changed to the indoor unit that are to be linked 2 If the time setting C4 5C v buttons are pressed the address of the linked units may be changed to the address where it is desired to enter the Lossnay Linking the Lossnay and the indoor unit The display shown in Figure 5 will appear when the TEST RUN button is pressed The indoor
179. re connecting disconnecting any connectors or replacing boards Diagnosis Check the outdoor stop valve Is the stop valve liquid gas fully Remedy open Check whether the power supply voltage is normal or not Y Open the stop valve liquid gas fully Is the power supply voltage normal Turn the power OFF to check for looseness disconnection or phases of the compressor wiring gt Ensure power supply from facility Connect the compressor wiring U V and Are the wirings normal Disconnect the wiring to check the power module Y W phase properly then turn the power back ON Replace the outdoor power board or Does it operate normally Yes Y outdoor controller board Defective power board Replace the compressor 70 OCH547 Defective compressor 4400 Rotational frequency of outdoor fan motor trouble Abnormal points detection methods Causes and check points Abnormal if no rotational frequency is detected or detected a value Malfunction of fan motor outside the specified range during fan motor operation amp Disconnection of connector 8 Defective outdoor controller board eDiagnosis of defectives Make sure to turn the power OFF before connecting disconnecting any co
180. roller The fuse on the indoor unit Master controller board is blown is not displayed on the remote controller MA remote controller is not fed The remote controller is not fed until the power supply of both indoor unit and outdoor unit is on and the start up of both units is finished normally The power supply of the indoor unit is not on The power supply of the outdoor unit is not on The number of connected remote controller is over the limit Maximum 2 units or the number of connected indoor unit that is over the limit Maximum 16 units The address of the indoor unit is 00 and the address for the outdoor unit is the one other than 00 The transmission line of the indoor outdoor unit is connected to TB15 MA remote controller is connected to the transmission line of the indoor outdoor unit The remote controller cable is shorted or down The power supply cable or the transmission line is shorted or down The fuse on the indoor unit controller board is blown PLEASE WAIT keeps being dis played or it is displayed periodically PLEASE WAIT is usually dis played about 3 minutes after the power supply of the outdoor unit is on The power supply of the outdoor unit is not on The power supply of the feeding expansion unit for the transmission line is not on The setting of MA remote controller is not main remote controller but sub remote controller MA remote contr
181. s and numbers of control wires needed by the CITY MULTI S series will depend on the remote controllers and whether they are linked with the system 9 3 1 Selection number of control wires M NET remote controller Use Remote controller used in system control operations Group operation involving different refrigerant systems Linked operation with upper control system Remote controller indoor unit Wires connecting indoor units Wires connecting indoor units with outdoor unit 2 wires non polar Transmission Wires connecting outdoor units 9 4 WIRING TRANSMISSION CABLES 9 4 1 Types of control cables 1 Wiring transmission cables Types of transmission cables Shielding wire CVVS or CPEVS or MVVS Cable diameter More than 1 25 mm Maximum wiring length Within 200 m 2 M NET Remote control cables Kind of remote control cable Shielding wire MVVS Cable diameter 0 5 to 1 25 mm Remarks When 10 m is exceeded use a cable with the same specifications as transmission line wiring 3 MA Remote control cables Kind of remote control cable Sheathed 2 core cable unshielded CVV Cable diameter 0 3 to 1 25 mm 0 75 to 1 25 mmz2 Remarks Within 200 m Connected with simple remote controller 9 4 2 Wiring examples Controller name symbol and allowable number of controllers Name S
182. s inch diameter mm 1 4 6 35 3 8 9 52 1 2 12 70 5 8 15 88 3 4 19 05 Thickness mm Dimensions of flare cutting and flare nut The component molecules in HFC refrigerant are smaller compared to conventional refrigerants In addition to that R410A is a refrigerant which has higher risk of leakage because its working pressure is higher than that of other refrig erants Therefore to enhance airtightness and intensity flare cutting dimension of copper pipe for R410A has been specified separately from the dimensions for other refrigerants as shown below The dimension B of flare nut for RA10A also has partly been changed to increase intensity as shown below Set copper pipe correctly referring to copper pipe flaring dimensions for R410A below For 1 2 and 5 8 inch the dimension B changes Use torque wrench corresponding to each dimension Dimension Flare cutting dimensions Nominal dimensions inch Outside diameter mm Dimension A 34 Dimension B Flare nut dimensions mm R410A R22 1 4 6 35 9 1 Nominal dimensions inch diameter mm Outside Dimension B mm R410A R22 9 0 3 8 9 52 13 2 1 4 6 35 17 0 17 0 13 0 1 2 12 70 16 6 3 8 9 52 22 0 22 0 16 2 5 8 15 88 19 7 1 2 12 70 26 0 24 0 19 4 5 8 15 88 29 0 27 0 3 4 19 05 G Tools for R410A The fo
183. same group or the remote controller is not set correctly The group setting between outdoor units is not registered to the remote controller The fuse on the indoor unit controller board is blown Though the indoor unit operates the display of the remote controller goes out soon The power supply of the indoor unit is not on The fuse on the indoor unit controller board is blown is not displayed on the remote controller M NET remote controller is not fed The power supply of the outdoor unit is not on The connector of transmission outdoor power board is not connected The number of connected indoor unit in the refrigeration system is over the limit or the number of connected remote controller is over the limit M NET remote controller is connected to MA remote controller cable The transmission line of the indoor outdoor unit is shorted or down M NET remote controller cable is shorted or down Transmission outdoor power board failure HO keeps being displayed or it is displayed periodically HO is usually displayed about 3 minutes after the power supply of the outdoor unit is on The power supply for the feeding expansion unit for the transmission line is not on The address of the outdoor unit remains 00 The address of the indoor unit or the remote controller is not set correctly MA remote controller is connected to the transmission line of the indoor outdoor un
184. seq y uo MOUS j Buung sued jeoujeje uo yooys 196 0 Jou eg sued y Bulyooyo Joye JosseJduioo eu lt sbum s jepul gt M ewJoy e qeu3 Josuas yu A Pen L JOSS JdUOI AY oj Y jpeuuoo eins YL euoje sued JO uni 198 e OL juerounsui eoueuuojied Uofesuapuoo sju naud eoueuuojied y oj YAMS w13 au soyeu y eoueuuojied ou BUYAIMS eoueuuojled au saspe ester oj uos 9 HE 6 9 wra be PUN 9 9973 uoneiodeno zabu aup 7 Bulyoumg 9 Uonesuepuoo seonpoud pue uondunsuoo uoyesado 1002 Buunp 3 NO 330 330 8 9MS w13 Jamod eu Sasied ji eu este BulyoyIMS eu Aq eoueuuoped y eonpejjeste1 NO 330 NO 440 ZIMS PUNON 89809 yonesodens ou 4 Aouanbey a geodo v3H Buunp uoneJedo eunssejd eue porn ea eu fou e is Jeu amp iu Aq eu esieJ OL lere sez usb wpa biel Jo ay BuryoyiMs 9 AA 440 9 9MS 330 ueuM syun y 10 uonipuoo
185. sor 8 Defective outdoor controller board eDiagnosis of defectives Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards The black square m indicates a switch position Diagnosis Check the wiring and connector connection of TH4 Is there any abnormality such Connect the wiring connector properly as a disconnection looseness or Replace the connector in case of a breakage breakage Disconnect the connector to check the resistance of TH4 using a tester Is the detected resistance normal gt Replace the thermistor The detected temperature of TH4 can be displayed by an operation of SW1 on the outdoor controller board SW1 Setting Display on LED1 2 Unit Check a temperature of TH4 bu e E OFF 99 9 999 9 12345678 Is the detected temperature normal Replace the controller board Malfunction of thermistor circuit Yes No abnormality gt A connector contact failure is suspected 547 5102 Suction pipe temperature thermistor TH6 open short lt Detected in outdoor unit gt Abnormal points and detection methods Causes check points Abnormal if TH6 detects to be open short D Disconnection or contact failure of connectors The open short detection is disabled during 10 sec to 10 min afte
186. splayed P112 model code 35 P125 model code 41 P140 model code 47 model name code of the outdoor unit is registered wrongly eDiagnosis of defectives Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Check the total number of connected indoor unit model names Correct the total number of connected indoor unit model name within 130 of the number on the outdoor unit model name Is the total under 130 of the number of outdoor unit model name Check the capacity code switch SW2 on the indoor controller board on the connected indoor unit Is it set properly gt Set the switch properly Check the model selection switch SW4 on the outdoor controller board of the outdoor unit Is it set properly Set the switch properly gt complete 96 OCH547 Check code 7101 Capacity code error Abnormal points and detection methods Causes and check points When a connected indoor unit is incompatible a check code lt 7101 gt is The model name of connected indoor unit model code displayed is read as incompatible The connectable indoor units are P112 to P140 model P15 to P140 model code to 28 eDiagnosis of defectives Make sure to turn the power OFF before connecting disconnecting any connectors or repl
187. system in this section Use 1 single outdoor unit and multiple outdoor units for M NET remote control system Use 1 single outdoor unit and multiple indoor units in the multiple outdoor units for the M NET remote control system A Example of a M NET remote controller system address setting is necessary Example of wiring control cables Wiring Method and Address Setting 1 Standard operation L1 51 TB3 TB7 M1 S 1 remote controller for each indoor unit There is no need for setting the 100 position on the remote controller a Use feed wiring to connect terminals M1 and M2 on transmission cable block TB3 for the outdoor unit OC to terminals M1 and M2 on the transmission cable block TB5 of each indoor unit IC Use non polarized 2 wire b Connect terminals M1 and M2 on transmission cable terminal block TB5 for each indoor unit with the terminal block TB6 for the remote controller RC c Set the address setting switch on outdoor unit P C B as shown below Unit Range Setting Method Indoor unit IC 001 to 050 Outdoor unit Use the smallest address of all the indoor iin unit plus 50 051 to 100 Indoor unit address plus 100 Remote controller RC TOTIS 150 2 Operation using 2 remote controllers 51 183 TB7
188. t Remote controller needs replacing z ERC The number of data errors is the discrepancy between the number of bits the data transmitted from the remote controller and that of the data that was actually transmitted over the transmission line If data errors are found check the transmission line for external noise inter ference Cw If the button is pressed after the remote controller check results are displayed remote controller check will end and the remote controller will automatically reboot itself Check the remote controller display and see if anything is displayed including lines Nothing will appear on the remote controller display if the correct voltage 8 5 12 VDC is not supplied to the remote con troller If this is the case check the remote controller wiring and indoor units OCH547 101 8 3 REMOTE CONTROLLER TROUBLE ate MITSUBISHI ELECTRIC ON OFF E FILTER Ce EEA CHECK TEST CO M NET Remote controller 1 For M NET remote controller systems Symptom or inspection code Cause Indicator appears when current is carried Inspection method and solution Though the content of operation is displayed on the remote controller some indoor units do not operate The power supply of the indoor unit is not on The address of the indoor units in
189. t is treated as a stop and not assumed to be abnormal Abnormality for PWFY series 1102 1300 1302 1500 1508 4100 ET 4230 4250 4400 5108 E 5201 5202 5300 5701 6606 6607 6608 6831 6832 6833 6834 7100 7101 7102 7105 Self diagnosis function Example The indoor and outdoor units can be diagnosed automatically using the self diagnosis switch When the compressor and SW1 and LED1 LED2 LED indication found on the multi controller of the outdoor unit SV1 are turned during cooling LED indication Set all contacts of SW1 to OFF operation During normal operation The LED indicates the drive state of the controller in the outdoor unit 1 29 42 97 B iin acad Compressor 1 1 Indication operated OCH547 38 0403 Serial communication error Causes check points Abnormal points and detection methods Abnormal if serial communication between the outdoor controller board Wire breakage or contact failure of connector CN2 or and outdoor power board is defective CN4 Malfunction of power board communication circuit on outdoor controller board Malfunction of communication circuit on outdoor power board eDiagnosis of defectives Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Dia
190. tdoor units First read the data on the selected indoor and outdoor units and then use the following formulas to calculate the electrical characteristics before applying for a capacity agreement with the local electric power company 9 7 1 Obtaining the electrical characteristics of a CITY MULTI S series system 1 Procedure for obtaining total power consumption Page numbers in this technical manual Power consumption Total power consumption of each indoor unit See the technical manual of each indoor unit Power consumption of outdoor unit Standard capacity table Refer to 4 3 Total power consumption of system See the technical manual of each indoor unit kW The power consumption of the outdoor unit will vary depending on the total capacity of the selected indoor units 2 Method of obtaining total current Page numbers in this technical manual Subtotal Total current through each indoor unit See the technical manual of each indoor unit Current through outdoor unit Standard capacity table Refer to 4 3 Total current through system See the technical manual of each indoor unit lt A gt The current through the outdoor unit will vary depending on the total capacity of the selected indoor units 3 Method of obtaining system power factor Use the following formula and the total power and current obtained in parts and
191. te Before Forced outdoor unit stop condition is met the unit always detects Q G above The indoor unit detecting above stops due to detecting abnormality the outdoor unit in same refrigerant system compressor is inhibited to operate The unit which stops due to detecting abnormality displays 2502 Detection timing of forced outdoor unit stop Constantly detected during unit operation and stop Releasing of forced outdoor unit stop Reset power supply of both abnormal indoor unit and its outdoor unit in same refrigerant system Forced outdoor unit stop cannot be released by remote controller OFF Note Above mentioned 9 and 0 are detected independently eDiagnosis of defectives Float switch models Drain overflow protection Chart 1 of 2 Causes and check points Malfunction of drain pump Defective drain Clogged drain pump Clogged drain pipe Defective moving part of float switch Foreign matter on the moving part of float switch ex sludge etc Defective float switch Defective indoor controller board Defective driving circuit of drain pump Defective input circuit of float switch Both of above mentioned 1 5 and the indoor linear expansion valve full closed failure leakage happens synchronistically Note Address Attribute displayed on the remote controller shows the indoor unit which is the cause of trouble Make sure to turn the power OFF before connecting disconnecting any connec
192. the next page OCH547 Is RC 6832 or ERC66 displayed controller and the other to sub No abnormality It might be caused by an external noise so check the transmission line Replace the remote controller Replace the indoor controller board with Does HO or Please wait disappear within 94 the LED2 is blinking 22 communication send error Chart 2 of 2 eDiagnosis of defectives Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Remedy Continued from the previous page Refer to the chapter Electrical Work Connect the wiring properly as specified in the chapter Electrical Work in the indoor unit Installation Manual 15 the wiring connected properly meeting the condition Yes No abnormality It might be caused by an external noise so check the transmission line to remove the factor s 95 OCH547 7100 Total capacity error Abnormal points detection methods Causes and check points When the total of the number on connected indoor unit model names D The total of number on connected indoor unit model exceeds the specified capacity level 13096 of the number on the outdoor names exceeds the specified capacity level unit model name a check code 7100 is di
193. the outdoor unit short cycled Solve the short cycle A short cycled no short cycle ZZ niis the outdoor heat gt Wash the outdoor heat exchanger dirty gt no dirt Are the pipes clogged or ve gt Yes gt Defective pipes B Disconnect the TH7 wiring and check the resistance Continue to the next page 46 OCH547 1302 High pressure trouble Chart 3 of 4 eDiagnosis of defectives Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Continued from the previous page Is there a resistance detected Replace the TH7 Disconnect the indoor LEV wiring to check the resistance Replace the indoor LEV Is there a resistance detected Check the voltage and appearance of the indoor controller board 15 the voltage normal Is it free from any trace of over heating or burning gt Replace the indoor controller board Check the resistance of SV1 Continue to the next page 47 OCH547 1302 eDiagnosis of d efectives High pressure trouble Chart 4 of 4 Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Remedy
194. thest indoor unit 0 3 x number of bends in the piping m Length of piping to farthest indoor unit type P112 P140 150m 4 4 3 Correction of Heating Capacity for Frost and Defrosting If heating capacity has been reduced due to frost formation or defrosting multiply the capacity by the appropriate correction factor from the following table to obtain the actual heating capacity Correction factor diagram Outdoor Intake temperature W B C Correction factor OCH547 18 4 5 NOISE CRITERION CURVES MODE SPL dB LINE PUMY P112VKM BS COOLING 49 PUMY P112YKM BS HEATING 51 e e 90 1 S 3 5 of 3 Ed i t E S 80 1 e 4 i e i 4 E E d r c E i 3 m 70 i i RI a i j e pw TR em a EE 9 DO 1 E 2 4 i 3 60 3 1 50 1 a 1 2 i INC 50 o Ed E D i 4 Z 40 2 1 Inca be d i 30 5 3 a F J 0 i RB P 1 i a 20 4 1 THRESHOLD OF 1 1 gt HEARING FOR i TNC 20 amp CONTINUOUS I i j o NOISE O 10 T T 1 F 1 63 125 250 500 1000 2000 4000 8000
195. tion error upon replacement of outdoor controller board Malfunction of input circuit on outdoor controller board Defective compressor Defective outdoor power board eDiagnosis of defectives Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Remedy Check the outdoor stop valve Is the st Ive liquid full TE s the stopvalve i igas tully Open the stop valve liquid gas fully open Check whether the power supply voltage is normal or not Check the power supply facility Is the powersupply voltage sme gt check for power supply open phase Check whether the model selection switch is set correctly on the controller board or not Are they set properly Set the model selection correctly Turn the power OFF to check for looseness disconnection or converse phases of the compressor wiring Continue to the next page 65 OCH547 4210 eDiagnosis of defectives Compressor overcurrent interruption Chart 2 of 2 Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Continued from the previous page Are they connected properly Connect the compressor wiring U V and Check the operation of indoor outdoor fan motors Does it ope
196. to remove thermistor lt Ambient gt TH7 Thermistor lt Suction pipe gt TH6 Ball valve and stop valve fixing screws Thermistor lt Compressor gt TH4 Compressor MC 5 Removing the thermistor lt Ambient gt TH7 Photo 8 1 Remove the service panel See Photo 1 2 Remove the top panel See Photo 1 3 Disconnect the connector TH7 red on the multi controller board in the electrical parts box 4 Loosen the wire clamps on top of the electrical parts box See Photo 6 5 Pull out the thermistor lt Ambient gt TH7 from the sensor holder Lead wire of thermistor lt Ambient gt TH7 Note When replacing thermistor lt Ambient gt TH7 replace it together with thermistor lt Suction pipe gt TH6 since they are combined together Refer to procedure No 4 above to remove thermistor lt Suction pipe gt TH6 Sensor holder OCH547 137 OPERATING PROCEDURE PHOTOS 6 Removing the thermistor lt Outdoor liquid pipe gt TH3 and thermistor lt Compressor gt TH4 thermistor lt HIC pipe gt TH2 1 Remove the service panel See Photo 1 2 Disconnect the connectors TH3 white and TH4 white TH2 black on the multi controller board in the electrical parts box 3 Loosen the clamp for the lead wire in the rear of the electri cal parts box 4 Pull out the thermistor Outdoor liquid pipe TH3 and thermistor Compressor TH4 from the sensor holder See Photo 7 and 9
197. tors or replacing boards Diagnosis Please refer to How to check the parts on indoor units service manual Does the drain pump Y Start cooling operation m drain level unusually high Y Y Continue to the next page 60 OCH547 Remedy Check the drain discharge system for Clean the drain pan EE gt Clogged drain pump Clogged or reverse connection of drain pipe 2502 lt Float switch models gt Drain overflow protection Chart 2 of 2 eDiagnosis of defectives Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis 15 the connector CNP Continued from the previous page 5 there a difficulty on the Solve the problem moving part when pulling up gt Remove foreign substance such as dusts the float switch manually Replace if the moving parts does not work Is the resistance of float gt Replace the float switch switch normal Open cD Short Disconnect the connector for float switch CN4F and short circuit between pins 3 4 on the controller board then start cooling operation 15 the check code lt 2502 gt still displayed No abnormality The cause might be that the drain level was unusualy high Restore the float switch and operate the unit connected properly T
198. trol Cooling 26 to 100 Cooling 24 to100 Heating 20 to 100 Heating 18 to 100 Cooling 21 to 100 Heating 17 to 100 Motor output kW 2 9 3 5 3 9 Case heater kW 0 Lubricant FV50S 2 3litter External finish Galvanized Steel Sheet Munsell No 3Y 7 8 1 1 External dimension HxWxD mm 1338 x 1050 x 330 25 in 52 11 16 x 41 11 32 x 13 1 Protection High pressure protection High pressure Switch devices Inverter circuit COMP FAN Overcurrent detection Overheat detection Heat Sink thermistor Compressor Compressor thermistor Over current detection Fan motor Overheating Voltage protection Refrigerant Type x original charge R410A 4 8kg Electronic Expansion Valve Net weight kg Ib 125 276 Heat exchanger Cross Fin and Copper tube HIC circuit HIC Heat Inter Changer HIC circuit Defrosting method Reversed refrigerant circuit Drawing External BK01N339 Wiring BH78B814 Standard Document Installation Manual attachment Accessory Grounded lead wire x2 Optional parts Joint CMY Y62 G E Header CMY Y64 68 G E Level difference 0 m 0 ft 0 m 0 ft Note 1 Nominal conditions 1 2 are subject to ISO 15042 2 Due to continuing improvement above specifications may be subject to change without notice Remarks 1 Nominal cooling conditions 2 Nominal heating conditions Unit convener Indoor 27 C D B
199. ts in Y Outdoor Unit First Branch Indoor unit Total Piping Length A a b c d 300 m Permissible Fa rthest Piping Length D 150 Length Farthest Piping Length After First Branch d is 30 meters or less Permissible High High Low Difference in Indoor Outdoor Section H 50 meters or less If the outdoor unit is lower 40 meters or less Low Difference High Low Difference in Indoor Indoor Section h 15 meters or less W Selecting the Refrigerant Branch Kit Please select branching kit which is sold separately from the table below The kit comprises sets for use with liquid pipes and for use with gas pipes Branch header 4 branches CMY Y64 G E Branch header 8 branches CMY Y68 G E Select Each Section of Refrigerant Piping 1 Section From Outdoor Unit to First Branch A 2 Sections From Branch to Indoor Unit a b c d Each Section of Piping Select the size from the table to the right 1 Refrigerant Piping Diameter In Section From Outdoor Unit to First Branch Out door Unit Piping Diameter 2 Refrigerant Piping Diameter In Section Piping Diameter From Branch to Indoor Unit Indoor Unit Model Piping Diameter mm Model number Piping Diameter mm PUMY P112 49 52 Liquid Line 46 35
200. ue uonejedo 440 ac ee ded Bujuado AJT 2 eu Bulun euojeg 9iqeu3 Uuoisuedxe oiuojo9je eu suedo Any YIM Syun y ul 793 109 eJoui st JUeJOBLYS eu m s 4q poar eonpai OL 8196 v zcl uone1edo 1 jun Joopyno eu Buung 8 n UI JOU SI ur Sun d 440 uoneiodo 40 10 1009 9015 Nv3 d SI y ui jueeBujei enp Ajloedeo NO gt YOIyM ay UO uorsuedxa yms uoneJedo euo y uey 10 440 egoeu uonejedo v3H y uonejedo uonounj eq esiou Moy v Jepo syun 204 AZ eu uedo 01 sDunjes Jeniu 95 eq ue 1 e Buung 0 ue jeuonippy esoding 18S cad 20 ND uonoun4 0915 yms uoe3 uoneiedo 105 OCH547 Ss 8 6 OUTDOOR UNIT INPUT OUTPUT CONNECTOR State CN51 EM oO 8 O Distant control board Lamp pow
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202. un JOOPU ay uSuM 2 exer LZHL LOI OLOLLOLL 16 6666 6 66 5 pinbr 921 OLOLLOLO 06 9 pinbr ZZHL 21 OLOLLOOL 68 9 ZZHL 01 OLOLLOOO 88 9 pinbr 221 OLOLOLLL 28 6 666 6 66 peKeidsip S pejoeuuoo jou si Joopul ueuM 6 666 666 9 ZZHL LO se5 EZHL 901 OLOLOLLO OLOLOLOL vol OLOLOLOO OLOLOOLL seg se9 ZHL 91 se9 ZHL ZI OLOLOOLO 9st 9 Do 529 LOI OLOLOOOL uoea pue Josuas aunsseJd uDiu woy amp jep pue 09 Joooqns Joopyno Jo Aejdsiq 6 666 6 66 9 BHI 0 0 0000 9 edid sooping HL OLOOLLLO 9 iduiey ioopino ZHL OLOOLLOL 9 L3 9HL 01001100 Do PL PHL OLOOLOLL 208089 aunssaid y6iy OLOOLOLO AZ Jo asind ejdsig sdeis jo Jequunu ejdsig SL O A31 9521 OLOOLOOL A31 721 01001000 asind A31 22 OLOOOLLL A31 22 OLOOOLLO A31 12 Jequunu dajs 05009 Ue 100pjnO OLOOOLOL 01000010 ja6se jo ejdsiq 99 0 0 00000 Aouanb
203. unit whose address is displayed and the Lossnay unit with a linked address will operate in a linked manner Notes 1 If it is desired to display the address of the Lossnay in the indoor unit address display the indoor unit address in the linked unit address and the above content will also be recorded 2 Apart from the indoor unit with the lowest address in the group display and enter the addresses of the other indoor unit that are to be linked with the Lossnay unit e Returning to the normal mode after completing entry Press the FILTER and xz4 buttons on the remote controller simulta neously and hold for 2 seconds to return to the normal mode Figure 4 B Making paired settings Figure 5 Completing normal entry nu pna d INDOOR UNIT ERROR CODE ADDRESS NO OAUNTADDRESSNO INDOOR UNIT ERROR CODE ADDRESS NO OA UNIT ADDRESS NO These alternating IC or LC displays will appear when entry is completed normally The addresses of indoor ae unit and linked units are display A flashing 88 will appear if there is a displayed simultaneously Rs problem with the entry indicating that the mous unit does not exist IT PE AGORESSNO ORUNTADDRESSTO OCH547 36 2 Address check Refer to section 1 regarding address entry a In making group settings Turn off the remote controller Press the remote controller s ON OFF button to sto
204. urn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Is the TH4 wiring disconnected gt Connect the wiring properly disconnected ms connected properly 0 C 700kQ 10 C 410kQ Check the resistance of TH4 20 C 250kQ 30 C 160kQ 40 C 104kQ Is the resistance normal Replace the TH4 Check the connector contact and wiring of the indoor LEV Is there any abnormality such as a half disconnection or breakage Disconnect the indoor LEV wiring to check the resistance Connect the connector properly or replace the LEV Continue to the next page 49 OCH547 4500 Superheat due to low discharge temperature trouble Chart 2 of 2 eDiagnosis of defectives Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Remedy Continued from the previous page Is there a resistance detected gt Replace the indoor LEV Check the voltage and appearance of the indoor controller board Is the voltage normal Is it free from any trace of over gt Replace the indoor controller board heating or burning Check the 63HS voltage Is there a voltage detected Replace the 63HS Replace the outdoor
205. utton to make sure that air blows out Select Cooling or Heating by OPERATION SWITCH button to make sure that cool or warm air blows out Press Fan speed button to make sure that fan speed is changed by the button Press AIR DIRECTION button or LOUVER button to make sure that air direction is adjustable horizontal downward upward and each angle Check outdoor fans for normal operation Check interlocked devices like ventilator for normal operation if any This is the end of test run operation Press ON OFF button to stop and cancel test run 9 9 Notes 1 If error code appears on remote controller or remote controller malfunctions refer to 8 1 3 Countermeasures for Error During Run 2 During test run operation 2 hour off timer activates automatically and remaining time is on remote controller and test run stops 2 hours later 3 During test run the indoor liquid pipe temperature is displayed on remote controller instead of room temperature 4 Depending on a model This function is not available appears when air direction button is pressed However this is not malfunction OCH547 34 pT 8 1 1 2 Test run for wired remote controller lt PAR 31MAA gt Select Service from the Main menu and press the button Cw Select Test run with the F1 or F2 button and press the 2 button ate MITSUBISHI ELECTRIC
206. vice panel See Photo 1 2 Remove the top panel See Photo 1 3 Remove 3 right side panel fixing screws 5 x 12 in the rear of the unit and remove the right side panel Remove the electrical expansion valve coil See Photo 11 12 Remove the electrical parts box See Photo 5 Recover refrigerant Remove the welded part of electrical expansion valve 4 5 6 7 OCH547 139 Photo 12 Electronic expansion Electronic Low pressure valve coil LEV A expansion valve sensor 63LS OPERATING PROCEDURE PHOTOS 13 Removing the reactor DCL 1 Remove the service panel See Photo 1 Photo ta 2 Disconnect the lead wires from the reactor Reactor box 4 way valve 3 Remove the 4 screws that fix the reactor box See Photo 13 4 Remove the reactor box Note 1 The reactor is very heavy Be careful when handling it Screws OCH547 140 OPERATING PROCEDURE PHOTOS 14 Removing the compressor MC Photo 14 1 Remove the service panel See Photo 1 Valve bed 2 Remove the top panel See Photo 1 Valve bed 3 Remove 2 front cover panel fixing screws 5 x 12 and remove the front cover panel See Photo 4 4 Remove front panel fixing screws 5 5x12 and 2 4 x 10 and remove the front panel See Photo 4 ean Y Valve 5 Remove 4 back cover panel fixing screws 5 x 12 and T bed fixing remove the back cover panel screws 6 Remove the electrical parts box See Photo 5
207. wire when making connections between the outdoor unit OC and the indoor unit IC as well for all OC OC and IC IC wiring intervals Use feed wiring to connect terminals M1 and M2 and the ground terminal on the transmission cable terminal block TB3 of each outdoor unit OC to terminals M1 and M2 on the terminal S on the transmission cable block of the indoor unit IC Connect terminals M1 and M2 on the transmission cable terminal block of the indoor unit IC that has the most recent address within the same group to the terminal block on the remote controller RC Connect together terminals M1 M2 and terminal S on the terminal block for centralized control TB7 for the outdoor unit OC e DO NOT change the jumper connector CN41 on MULTI controller board f The earth processing of S terminal for the centralized control terminal block TB7 is unnecessary Connect the termi nal S on the power supply unit with the earth g Set the address setting switch as follows Unit Range Setting Method IC Main 01 to 00 Use the smallest address within the same group of indoor units Use an address other than the IC Main in the same group of indoor units IC Sub 01 to 50 This must be in sequence with the IC Main Use the smallest address of all the indoor units plus 50 The address automatically becomes 100 if it is set as 01 50 Main Remote Controller 101 to 150 Setat an IC Main address within the same group plus 10
208. y from the facility Connect the wiring properly Is it connected properly T Check whether the model selection switch is set correctly on the controller board or not Continue to the next page then turn the power back ON 63 OCH547 4100 Compressor current interruption Locked compressor Chart 2 of 2 eDiagnosis of defectives Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Continued from the previous page gt Set the model selection switch correctly Are they set properly then restart Check whether the compressor is faulty grounded or not Replace the compressor Defective compressor G Y Is the compressor faulty grounded Yes Replace the outdoor power board Defective outdoor power board 64 OCH547 4210 Compressor overcurrent interruption Chart 1 of 2 Abnormal points and detection methods Causes check points Abnormal if overcurrent of DC or the compressor is detected within 30 Closed outdoor stop valve seconds after the compressor starts operating Decrease of power supply voltage 9 Looseness disconnection or reverse phase of compressor wiring connection C Malfunction of indoor outdoor fan Short cycle of indoor outdoor unit amp Model selec
209. ymbol Allowable number of controllers Outdoor unit controller OC PUMY P112 1 to 9 units per 1 OC Indoor unit controller IC PUMY P125 1 to 10 units per 1 OC PUMY P140 1 to 12 units per 1 OC M NET Maximum of 12 controllers for 1 OC Remote controller RC MA Maximum of 2 per group OCH547 125 9 5 SYSTEM SWITCH SETTING In order to identify the destinations of signals to the outdoor units indoor units and remote controller of the MULTI S series each microprocessor must be assigned an identification number address The addresses of outdoor units indoor units and remote controller must be set using their settings switches Please consult the installation manual that comes with each unit for detailed information on setting procedures 9 6 EXAMPLE EXTERNAL WIRING DIAGRAM FOR A BASIC SYSTEM Example using a M NET remote controller Breaker for Wiring and Current Leakage Power supply 3 phase 4 wire 50Hz 380 400 415V Outdoor unit Grounded Breaker for Wiring Power supply and Current Leakage Single phase 50Hz 220 230 240V Group operation Remote controller wire 9 7 METHOD FOR OBTAINING ELECTRICAL CHARACTERISTICS WHEN A CAPACITY AGREEMENT IS TO BE SIGNED WITH AN ELECTRIC POWER COMPANY The electrical characteristics of connected indoor unit system for air conditioning systems including the MULTI S series will depend on the arrangement of the indoor and ou

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TECHNICAL &amp; SERVICE MANUAL

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TECHNICAL & SERVICE MANUAL