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Mitsubishi Electric PEFY-P VMHS

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2. Multiplier of B 3480 2 40 15 exp 3480 ___1__ 273 t 273 30 0 15kQ 10 C 9 6kQ a 20 6 3kQ 25 5 2kQ 20 30 4 3kQ 40 3 0kQ A Temperature C 10 B Resistance kO 0 20 10 0 10 20 30 40 50 2 Refer to the page fan motor motor INV board page 48 3 Linear expansion valve Refer to the page on LEV 8 5 page 52 HWE1016A 14 GB 2 Error Code Lists Searched unit Prelimi ES 5 Mad inary Error code definition Notes detail 5 code Oo lL code olola gs 6 a e2 4300 091 0403 05 Serial communication error 4305 Note 0900 Test run O 1102 1202 Discharge temperature fault O 1301 Low pressure fault O 1302 1402 High pressure fault O 1500 1600 Refrigerant overcharge O 1605 Preliminary suction pressure fault O 2500 Drain sensor submergence O 2502 Drain pump fault O 2503 Drain sensor Thd fault 2600 Water leakage O 2601 Water supply cutoff O 4102 4152 Open phase O 4106 Transmission power supply fault O 4109 Fan operation status detection error O
3. SYMBOL NAME SYMBOL NAME I B Indoor controller board P B Power supply board CN25 Connector INV B Inverter board CN32 Connector Remote switch IPM Intelligent power module CN41 Connector HA terminal A 201 Fuse AC250V 15 CN90 Connector Wireless TB2 Power source terminal block SW1 Switch for mode selection TB5 Transmission terminal block SW2 Switch for capacitv code TB15 Transmission terminal block SW3 Switch for mode selection TH21 Thermistor inlet air temp detection SW4 Switch for model selection TH22 Thermistor piping temp detection liquid SW5 Switch for mode selection TH23 Thermistor piping temp detection gas Swit Switch 1s digit address set THHS Thermistor heatsink SW12 Switch 10ths digit address set MF Fan motor SW14 Switch BRANCH No LEV1 LEV2 Electronic linear expan valve SWA Switch for static pressure selection ACL AC reactor Power factor improvement SWC Switch for static pressure selection R Resistor SWE Connector emergency operation DBO1 Diode bridge NF B Noise filter board ACCT Current Sensor AC DSAO001 Arrester LED1 LED Power supply ZNRO1 Varistor LED2 LED Remote controller supply ENSIS DP Drain pump X010 Aux relay FS Float switch Inside lt gt is the optional parts 2001 Fuse AC250V 10 F100 Fuse 3 15A NF Noise filter Note 1 The part of thin dotted line indicates the circuit for
4. Model PEFY P200VMHS E PEFY P250VMHS E Voltage V 1 phase 220 240 Power supply Frequency Hz 50 60 Capacity 1 Cooling kW 22 4 28 0 Heating kW 25 0 31 5 Power consumption Cooling kW 50Pa 0 43 0 59 Heating kW Cooling kW 100Pa 0 52 0 70 kW Cooling kW 150Pa 0 63 0 82 Heating kW Cooling kW 200Pa 0 75 0 95 kW Cooling kW 250Pa 0 89 0 97 Heating kW Current consumption Cooling A x9 50Pa 2 31 3 08 Heating A Cooling A 100Pa 2 79 3 75 Heating A Cooling A 150Pa 3 32 4 43 Heating A Cooling A 200Pa 3 95 5 10 Heating A Cooling A 250Pa 4 81 5 29 Heating A External finish Galvanized Dimensions Height mm 470 Width mm 1250 Depth mm 1120 Net weight 97 100 Heat exchanger Cross fin Alminium fin and copper tube Fan Type Sirocco fan x 2 Airflow rate H M L m3 min 72 61 50 84 71 58 External static pressure Pa 50 100 150 200 250 Motor Output kW 0 87 Air filter Option Refriferant pipe dimensions Gas Brazed connection mm 219 05 222 2 in 23 4 27 8 Liquid Brazed connection mm 29 52 in 23 8 Drain pipe dimensions mm O D 32 in 1 1 4 Operating noise H M L 50Pa dB A 39 35 32 42 38 35 7 100Pa 41 37 34 44 40 37 Aux duct 150Pa 43 39 36 46 42 39 200Pa 45 41 38 48 44 41 250Pa 47 43 40 50 46 43 Measurement location 2 Measured in anechoic room 1 Cooling Indoor temperature 27 CDB 19 CWB 81 FDB 66 FWB Outd
5. Imensions 5 Outlines and D pue 891M19S JO eoeds pasinbay Se ou 0 LLxZ E lt gt I SHWA0SZd A43d qulo gt 2969 asoy 90616 xsHWAO0zd A43d _ VIN odid pinbr edd 529 q13dON jeuruuJe uorssiusueJ 176 9JOU JNOXSOUX adA 9JOU esnos Jamog BUOP SI J9JJIJ eu Zep 176 9109 jnoxoouy 1 yoeye pesn si paljddns eseo 96 T apis exey y uo Ajddns eu JJEJSUI ens peBueup si JOJOW Uk ay ueuw M WOJJOQ ay WO y JO eoeds eoiues ay daay g FI als ziig si eui usym qa N l E WOJJOQ ay WO y JO eoeds eoriues ay daay Z 5 m n Ajddns uoisuedsns ay 10 M919S QLN 9SfY SION go 5 S 8 7 i 5 uonisod pajulodde ay eounos Joop ay aye 2 pxz uondo JEUIWJSL 5 eoeyns
6. Serial communication error Indoor unit 2 Error definition and error detection method Serial communication cannot be established between the Indoor controller board and the INV board 3 Cause check method and remedy 1 Faulty wiring Check the following wiring connections 1 Between Indoor controller board and Power supply board Indoor controller board Power supply board CN100 CNRSC 2 Between Power supply board and INV board Power supply board INV board CNRSP CNRS2 2 INV board failure or Indoor controller board failure or Power supply board failure If the error persists after a power reset replace the INV board the Indoor controller board or the Power supply board Note Refer to section 8 Troubleshooting item 4 fan motor fan motor INV board for error codes related to the inverter page 48 1 Error Code 2500 Drain sensor submergence Models with a drain sensor 2 Error definition and error detection method 1 If an immersion of the drain sensor in the water is detected while the unit is in any mode other than the Cool Dry mode and when the drain pump goes from OFF to ON this condition is considered preliminary water leakage While this error is being detected humidifier output cannot be turned on Applicable to the units manufactured in or after October 2006 2 Ifthe immersion of the sensor in the water is detected fo
7. Grounding fault or does the shielded wire contact with the transmission line Improper transmission line work System with the power supply unit for transmission lines Single outdoor unit system Multiple outdoor unit system Confirm that the power supply Confirm that the power supply comnector on the outdoor connector on the outdoor unit is not plugged into CN40 unit is not plugged into CN40 Is the male power supply connector connected to the female power supply switch connector CN40 on only one of the outdoor unit Is the male power supply connector connected to the female power supply switch connector CN40 Disconnect the male power supply on CN40 and connect it to CN41 Investigation into the For the investigation method follow transmission line noise investigation method of transmission wave gt Controller failure of the source of the error Tightly reconnect the male power supply comnector to the female power supply switch connector CN40 Investigation into the cause of the noise Correct the error 32 GB 1 Error Code 6603 Transmission line bus busy error 2 Error definition and error detection method Generated error when the command cannot be transmitted for 4 10 minutes in a row due to bus busy Generated error when the command cannot be transmitted to the transm
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9. 3 Inverter failure or fan motor error 1 2 Refer to 8 4 2 2 page 49 3 Referto 8 4 2 3 page 50 4 Referto 8 4 2 4 page 50 Note Refer to section 8 Troubleshooting item 4 fan motor fan motor INV board for error codes related to the inverter page 48 1 Error Code 4255 Instantaneous overcurrent Indoor unit Overcurrent Indoor unit 2 Error definition and error detection method Overcurrent 18 Arms and above is detected by the current sensor 3 Cause check method and remedy Cause Check method and remedy 1 Power supply environment Check the power supply voltage Check whether the power voltage is 198V or above across all phases 2 Static pressure setting error Check that the static pressure setting and the design static pres sure are correct 3 Inverter failure or fan motor error 1 Refer to 8 4 2 1 page 49 2 Referto 8 4 2 2 page 49 3 Refer to 8 4 2 3 50 4 Referto 8 4 2 4 page 50 Note Refer to section 8 Troubleshooting item 4 fan motor fan motor INV board for error codes related to the inverter page 48 HWE1016A 25 1 Error Code 4255 Short circuited IPM Ground fault Indoor unit 2 Error definition and error detection method When IPM IGBT short damage or grounding on the load side is detected just before st
10. 4k External Static Pressure 150Pa Power Source 220 240V 50Hz 60Hz 70 0 65 0 Measurement point 60 7 50 4 NC 40 NC 30 NC 20 8k 20 60 0 55 0 50 0 x 45 0 40 0 35 0 30 0 25 0 20 0 Approximate minimum Octave band pressure level dB OdB audible limit on continuous noise 15 0 199 63 125 250 500 1k 2k Octave band center frequencies Hz 4k HWE1016A 8k NC 60 7 NC 50 NC 40 3 NC 30 NC 20 External Static Pressure 100Pa Power Source 220 240V 50Hz 60Hz 70 0 c 65 0 Ei S 60 0 il 4 NC 60 B 55 0 T 50 0 P 4 NC 50 o 45 0 o 40 0 NC 40 im 30 0 NC 30 S 250 2 E 200 Approximate minimum 150 audible limit on NC 20 continuous noise pa 100 63 125 250 500 1k 2k 4k 8k 20 Octave band center frequencies Hz External Static Pressure 200Pa Power Source 220 240V 50Hz 60Hz 70 0 65 0 60 0 55 0 50 0 ix 45 0 Octave band pressure level dB OdB 40 0 35 0 30 0 25 0 20 0 nG Approximate minimum audible limit on continuous noise 63 125 250 500 1k 2k Octave band center frequencies Hz 15 0 10 0 Ak NC 60 NC 50 NC 40 NC 30
11. NC 20 8k GB 20 External Static 250 Power Source 220 240V 50Hz 60Hz 70 0 65 0 60 0 7 NC 60 55 0 50 0 7 NC 50 45 0 Octave band pressure level dB OdB 40 0 NC 40 35 0 30 0 J NC 30 25 0 20 0 Approximate minimum NC 20 audible limit on continuous noise 15 0 TES 125 250 500 1k 2k Octave band center frequencies Hz 63 PEFY P250VMHS E 20 Octave band pressure level dB OdB External Static Pressure 50Pa Power Source 220 240V 50Hz 60Hz 4k 8k 70 0 65 0 60 0 NC 60 55 0 50 0 NC 50 45 0 40 0 A NC 40 35 0 30 0 NC 30 25 0 20 0 un Approximate minimum audible limit on continuous noise 15 0 xi NC 20 100 63 125 250 500 1k 2k Octave band center frequencies Hz External Static Pressure 150Pa Power Source 220 240V 50Hz 60Hz 4k 8k 70 0 65 0 Ei S 60 0 NC 60 Mm 550 50 0 gt A 50 p 450 a o 40 0 8 350 NC 40 2 30 0 E NC 30 S 25 0 200 4 E F Approximate minimum O 4590 audible limit on E NC 20 continuous noise Ez 100 63 125 250 500 1k 2k 4k 8k HWE1016A Octave band center frequencies Hz Exte
12. ACCT sensor detected that not enough current is available 3 Cause check method and remedy Cause Check method and remedy 1 Disconnected ACCT sensor Check 2 on the INV board for proper connection 2 ACCT sensor fault Disconnect the CNCT2 connector and check the resistance between the terminals Refer to 8 4 4 page 51 3 Inverter failure or fan motor error Refer to 8 4 2 2 page 49 Refer to 8 4 2 4 50 If no problems were found with items 1 and 2 above and the prob lem persists after resuming operation replace the INV board and the ACCT sensor If the problem persists after taking step 3 above replace the fan mo tor Note Refer to section 8 Troubleshooting item 4 DC fan motor fan motor INV board for error codes related to the inverter page 48 1 Error Code 5701 Loose float switch connector 2 Error definition and error detection method Detection of the disconnected float switch open phase condition during operation 3 Cause check method and remedy 1 CN4F disconnection or contact failure Check for disconnection of the connector CN4F on the indoor controller board HWE1016A 30 GB 1 Error Code 6600 Address overlap 2 Error definition and error detection method An error in which signals from more than one indoor units with the same address are
13. MITSUBISHI Changes for the Better A ELECTRIC AIR CONDITIONERS 201 1 R410A TECHNICAL amp SERVICE MANUAL Model name PEFY P200VMHS E PEFY P250VMHS E CITY MULTI Safety Precautions Read before installation and performing electrical work Thoroughly read the following safety precautions prior to installation Observe these safety precautions for your safety This equipment may have adverse effects on the equipment on the same power supply system Contact the local power authority before connecting to the system Symbol explanations N WARNING This symbol indicates that failure to follow the instructions exactly as stated poses the risk of serious injury or death N CAUTION This symbol indicates that failure to follow the instructions exactly as stated poses the risk of serious injury or dam age to the unit Indicates an action that must be avoided Indicates important instructions Indicates a parts that requires grounding 5 peeo unit label Color Yellow Indicates that caution must be taken with rotating parts This symbol is on the main unit label Color Yellow Indicates that the parts that are marked with this symbol pose a risk of electric shock This symbol is on the main N WARNING Carefully read the labels affixed to the main unit N WARNING Ask your dealer or a qualified technician to install the unit Improper installation by the
14. 4115 Power supply signal sync error O 4116 RPM error Motor error O o 108 Abnormal bus voltage drop 4220 4320 109 Abnormal bus voltage rise olo 4225 4325 Note Note 111 Logic error olo 131 Low bus voltage at startup O 4230 4330 4235 4335 Heatsink overheat protection 4240 4340 Overload protection O 101 IPM error OO 104 Short circuited IPM Ground fault 105 Overcurrent error due to short circuited motor 4250 4350 4255 4355 106 Instantaneous overcurrent S W detection OO Note Note 107 Overcurrent effective value S W detection 121 Position detection error at startup O 122 Position detection error during operation 4260 Heatsink overheat protection at startup O Return air temperature TH21 5101 1202 eee sensor au OA processing unit inlet o temperature TH4 HWE1016A 2452 GB Searched unit Prelimi 2 5 Error nary p E de definiti Not Code SHOE inary rror code definition Siz 2 5 otes detail 5 5 Ilo code 5 0 2 22 8 Indoor unit pipe tempera ture TH22 Temperature sensor processing unit pipe ae TEM fault temperature TH2 HIC bypass circuit outlet temperature TH2 Indoor unit gas side pipe temperature TH23 OA processing unit gas Temperature
15. and the wave shape will be changed The transmission is sent and received repeatedly due to noise Decrease of transmission line voltage signal by exceeding acceptable range of transmission wiring Farthest 200m 656ft or less Remote controller wiring 12m 39ft or less The transmission line voltage signal is decreased due to erroneous sizing of transmission line Wire diameter 1 25mm AWG 16 or more Check method and remedy When an error occurs during commissioning turn off the power sources for the outdoor unit indoor unit and LOSSNAY for 5 or more minutes and then turn them on again When they return to normal operation the cause of the error is the transmission line work performed with the power on If an error occurs again check the cause 2 Check 3 and 4 above elf the cause is found correct it If no cause is found check 3 Check transmission wave shape noise on trans mission line by following the instructions detailed in the Outdoor service handbook Noise is the most possible cause of the error 6608 HWE1016A 42 GB 1 2 N Error Code 6831 MA controller signal reception error No signal reception Error definition and error detection method Communication between the MA remote controller and the indoor unit is not done properly proper data has been received for 3 minutes Cause Contact failure of the remote controller lines of MA remo
16. itis not necessary to re place the LEV when there are no effects to other parts Thermistor liquid piping temperature detection ed Linear Expansion Valve If there is a large amount of leakage replace the LEV Faulty wire con nections in the connector or faulty contact 1 Check for loose pins on the connector and check the colors of the lead wires visually 2 Disconnect the control board s connector and conduct a continuity check using a tester Check the continuity at the points where an error occurs 55 GB 5 Address switch setting Make sure that power to the unit is turned off Indoor controller board O SwADummr 5 512 6 SWS SWC 1 Address is set with a combination of SW12 10 s digit and SW11 1 s digit To set the address to 3 set SW12 to O and SW11 to 3 To set the address to 25 set SW 12 to 2 and SW 11 to 5 HWE1016A 54 6 Test point diagram 1 Indoor controller board CN100 CN2M a idi St Ta 1 zov LN ul 250v O By GAN Ke768214051 BI498S DO pal O DIP p O ee ET i 4 OF isl PE li du IR ME pn Y SWE SW2 5 4 SW3 CN32 CN3A CN52 CN51 CN41 CN44 CN4F CN20 CN100 aot 10002 1 a721 2 Noise filter board NF board CNDP CNACL C
17. proper data has been received for 2 minutes Cause Contact failure of the remote controller lines of MA remote controller or the indoor unit All the remote controllers are set to SUB Failure to meet wiring regulations Wire length Wire size Number of remote controllers Number of indoor units The remote controller is removed after the installation without turning the power source off Noise interference on the remote controller transmission lines Faulty circuit that is on the indoor board and performs transmission reception of the signal from the remote controller Problems with the circuit on the remote controller that sends or receives the signals from the remote controller Check method and remedy Check for disconnected or loose transmission lines for the indoor units or MA remote controllers Confirm that the power is supplied to the main power source and the remote controller line Confirm that MA remote controller s capacity limit is not exceeded Check the sub main setting of the MA remote controllers One of them must be set to MAIN Diagnose the remote controller described in the remote controller installation manual OK no problems with the remote controller check the wiring regulations NG Replace the MA remote controller 6832 6833 ERC Due to noise interference Go to 6 Check wave shape noise on MA remote controller line by following the instructions detailed in the Outdoor service handbook
18. replace the fan motor and all applicable parts on the inverter Troubleshooting the inverter related problems Error codes and symptoms Check items 1 Inverter related errors Check the error history on the outdoor unit circuit board LED 4255 4225 4235 5110 5305 2 Main power breaker is tripped 1 Check the breaker capacity 2 Check the electric circuits other than the inverter circuits for short circuit and ground fault 3 Ifno problems are found with items 1 and 2 see 3 1 3 The main earth leakage breaker 1 Check the capacity and the sensitivity current of the earth leakage breaker is tripped 2 Insulation resistance failure of the electrical components other than the in verter 3 If no problems are found with items 1 and 2 see 3 1 4 Only the fan motor is inoperative Check the display on the remote controller If the fan is in operation proceed to section 2 2 and 2 3 5 The fan motor vibrates excessive See 2 2 and 2 3 ly or makes abnormal sounds 6 Peripheral devices pick up electri 1 Check that the power wire to the peripheral devices are not routed adjacent cal noise to the power wire to the indoor unit 2 Check that the inverter output wiring is not routed adjacent to the power wire or transmission line 3 Check that a shielded cable is used if required Check that the shield is prop erly grounded 4 Insul
19. Varies with the tempera ture 3 Troubleshooting when the main power breaker trips Check items Symptoms Actions to take Check the resistance between the terminals of power supply terminal block TB2 with an ohmmeter 1 1 0 to several ohms or insula tion resistance failure 2 Turn the power back on and check again Main power breaker is tripped Check the components in the main invert er circuit Refer to 4 Simple check on the main in verter circuit components page 51 Diode bridge 2 Nothing appears on the re b Inrush current limiting resistor mote controller AC reactor ACL d Current sensor ACCT 3 Check the indoor unit for normal 1 The indoor unit operates nor a Look for a possible short circuit and if operation mally without tripping the main found repair breaker b If no problems are found with item a there may be problems with the fan motor 2 Main power breaker is tripped The fan motor may have had a ground fault See section 2 1 HWE1016A 50 4 Simple check on the main inverter circuit components Note 3 Turn off the power supply take the following components out of the control box and then check the components Parts name Evaluation criteria Diode bridge Refer to 5 Troubleshooting the diode bridge Inrush current limiting resistor R Measure the resistance b
20. When no problems are found with items 1 through 6 replace the indoor unit board or the MA remote controller The following status can be confirmed on LED1 and 2 on the indoor unit board If LED1 is lit the main power source of the indoor unit is turned on If LED2 is lit the MA remote controller line is being powered HWE1016A 46 1 Error Code 7101 Capacity code setting error 2 Error definition and error detection method Connection of incompatible wrong capacity code indoor unit or outdoor unit 3 Error source cause check method and remedy Error source Cause Check method and remedy Outdoor unit 1 model name capacity code set by Indoor unit the switch SW2 is wrong The capacity of the indoor unit can be confirmed by the self diagnosis function SW1 operation of the outdoor unit Check the model name capacity code of the in door unit which has the error source address set by the switch SW2 on indoor unit board When the model name set by the switch is different from that of the unit connected turn off the power source of the outdoor and the indoor units and change the setting of the capacity code rectly Outdoor unit 2 model selection switches SW5 1 5 4 on the outdoor unit are set incor Model SW5 200 model OFF ON OFF OFF 250 model ON ON OFF OFF 300 model OFF OFF ON
21. circuited for 100 consecutive secondsduring operation Cause Check method and remedy 1 Auxiliary relay X13 fault The coil or the wiring of the auxiliary relay connected to CN28 is faulty 2 Connector CN28 is disconnected Check the connector for proper connection Blown fuse 3 Check the fuse on the control circuit board 4 Motor error thermistor error inside the motor Check the unit fan for proper operation in the test run mode If no problems are found with items 1 through 3 above and the fan does not operate replace the motor HWE1016A 22 GB 1 Error Code 4116 RPM error Motor error 2 Error definition and error detection method LOSSNAY The motor keep running even if the power is OFF The thermal overload relay is ON Only for the three phase model Indoor unit If detected less than 180rpm or more than 2000rpm the indoor unit will restart and keep running for minutes If detected again the display will appear 3 Cause check method and remedy Cause Check method and remedy 1 Board failure Replace the board 2 Motor malfunction Check for the motor and the solenoid switch 3 Solenoid switch malfunction 1 Error Code 4225 Abnormal bus voltage drop Indoor unit 2 Error definition and error detection method If Vdc 130V or less is detected during Inverter
22. correct 3 Error in the number of connected units the error 7102 elf no error is found check 2 4 Address setting error 7105 5 Disconnection or short circuit of the trans 2 Check 5 7 on the left mission line for the outdoor unit on the ter minal block for centralized control line connection TB7 6 Turn off the power source of the outdoor unit 7 Malfunction of electrical system for the outdoor unit 3 Error occurrence on all IC Check voltage of the transmission line for cen 1 Same causes as 1 7 described in 2 tralized control 2 The male power supply connectors on 2 20V or more Check 1 or more outdoor units are connected to and 2 on the left the female power supply switch connector Less than 20V Check for the transmission line for cen 3 on the left tralized control 3 Disconnection or shutdown of the power source of the power supply unit for trans mission line 4 System controller MELANS malfunction HWE1016A 38 GB 1 Error Code 6607 No ACK error 2 Error definition and error detection method The error is detected when no acknowledgement ACK signal is received after the transmission eg When the data is trans mitted six times in a row with 30 seconds interval the error is detected on the transmission side Note The address attribute appeared on the display on the remote controller indicates the controller which did not
23. display on some displays on ME remote controllers Faulty wiring of the transmission line for ME remote controller Disconnection or contact failure of the transmission connector for ME remote controller ME remote controller failure Check 1 3 on the left 1 2 3 4 Error occurrence on all IC in the system with one outdoor unit An error is found by the outdoor unit Total capacity error 7100 Capacity code error 7101 Error in the number of connected units 7102 Address setting error 7105 Disconnection or short circuit of the transmission line for the outdoor unit on the terminal block for cen tralized control line connection TB7 Turn off the power source of the outdoor unit Malfunction of electrical system for the outdoor unit 2 Check the LED display for troubleshooting on the out door unit If an error is found check the check code definition and correct the error elf no error is found check the cause 2 Check 2 4 on the left 1 2 3 4 Error display on all displays on ME remote controllers Same causes as 1 4 described in 2 When the power supply unit for transmission lines is used and the male power supply connector is connected to the female power sup ply switch connector CN40 for the transmission line for centralized control Disconnection or shutdown of the power source of the power supply unit for transmi
24. local regulations and the instructions in this manual Use a dedicated circuit HWE1016A Insufficient power supply capacity or improper installation of the unit may result in malfunctions of the unit electric shock or fire GB N WARNING Keep electrical parts away from water Wet electrical parts pose a risk of electric shock smoke or fire Securely attach the control box cover If the cover is not installed properly dust or water may infil trate and pose a risk of electric shock smoke or fire Only use the type of refrigerant that is indicated on the unit when installing or relocating the unit Infiltration of any othertypes of refrigerant or air into the unit may adversely affect the refrigerant cycle and may cause the pipes to burst or explode When installing the unit in a small space take appropriate precautions to prevent leaked refrigerant from reaching the limiting concentration Leaked refrigerant gas will displace oxygen and may cause oxygen starvation Consult your dealer before installing the unit Consult your dealer or a qualified technician when moving or reinstalling the unit Improper installation may result in water leakage electric shock or fire After completing the service work check for a refrigerant leak If leaked refrigerant is exposed to a heat source such as a fan heater stove or electric grill t
25. operation S W detection 3 Cause check method and remedy 1 Power supply environment Check whether the unit makes an instantaneous stop when the detection result is abnormal or a power failure occurs Check whether the power voltage is 198V or above across all phases 2 Voltage drop detected Check the voltage at CNVDC between pins 1 and 3 on the INV board while the inverter is stopped and if it is less than 220V check the following items 1 Check the wiring between TB2 and NF board NF board and ACL NF board and inrush current resistor NF board and DBO1 NF board and INV board NF board and indoor controller board 2 Check the inrush current resistance Measure the interphase resistance of the resistor 220 1096 3 Check ACL for broken wires Check that the resistance between pins 1 and 3 housing side of the CNACL connector is not infinite 4 Check the diode bridge DB01 for problem Refer to section 5 Troubleshooting the diode bridge page 51 5 If no problems were found with items 1 through 4 above replace the NF board 3 Indoor controller board failure Confirm that DC12V is applied to the connector CNXB2 between pins 4 and 5 on the Indoor controller board while the inverter is operating If not replace the Indoor controller board 4 NF board failure If the unit stops within 10 seconds after resuming operation and the same error is detected replace the NF board 5 INV board f
26. optional parts 2 To perform a drainage test for the drain pump turn on the SWE on the control board while the indoor unit is being powerd Be sure to turn off the SWE after completing a drainage test or test run 3 The wirings to TB2 TB5 TB15 shown in dotted line are field work 4 Mark Q indicates terminal block D connector HWE1016A 242 GB 7 Refrigerant system diagram o 9 D Ti Z ae HWE1016A D Gas pipe thermistor TH23 Gas pipe Liquid pipe Brazed connections Strainer 100 mesh Linear expansion valve Liquid pipe thermistor TH22 Heat exchanger Room temperature thermistor TH21 13 GB 8 Troubleshooting 1 Check methods 1 Component and check points 1 Thermistor Room temperature thermistor TH21 Liquid pipe thermistor TH22 Gas pipe thermistor TH23 Disconnect the connector and measure the resistance between terminals with a tester Ambient temperature 10 30 Normal Abnormal 4 3 9 6 Open or short Refer to the thermistor characteristic graph below 1 Thermistor characteristic graph Low temperature thermistor Room temperature thermistor TH21 Liquid pipe thermistor TH22 50 Gas pipe thermistor TH23 Thermistor Rg 15 kO 390
27. proce dure in section 1 Control box Noise filter board INV board 2 Removing the fan motor and ACL cable 1 Disconnect the connector CNCT1 from the INV board and connector CNACL from the noise filter board Then disconnect the relay connector 2 Remove the ground wire on the motor from the white connector 3 Remove the cable through the rubber bush 3 Removing the bottom plate gt Connector 1 Remove the ten fixing screws on the bottom plate T T WHITE to remove it 4 Removing the wiring 1 Remove the three screws and two clamps that are used to connect the wiring 5 Removing the reactor 1 Remove the two fixing screws on the reactor base U to remove it No NG MW 7 are LA ei N U 6 Removing the fan case 1 Remove the eight fixing screws on the fan case V to remove it Fig 13 HWE1016A 66 GB 7 Removing the fan and fan motor 1 Remove the two fixing screws and attachment on the fan motor W 2 Pull out the fan motor in the direction of the arrow HWE1016A 67 Exercise caution when removing heavy parts Fig 14 GB 10 Optional parts Drain pump Long life filter Filter box HWE1016A PAC KE05DM F PAC KE85LAF PAC KE250TB F 68 GB MITSUBISHI ELECTRIC CORPORATION HWE1016A New publication effective Jun 2011 Printed in Japan Sp
28. provide the response ACK 3 System configuration 3 System connected to the system controllers MELANS Error source address Error display Detection method Cause Check method and remedy ME re mote con troller RC ME remote controller RC System con troller SC MA remote controller MA No acknowl edgement ACK at IC transmissionto RC Same as grouping of units in a sys tem with multiple outdoor units Same remedy as that for grouping of units in a system with multiple outdoor units System con troller SC No acknowl edgement ACK at MELANS transmission to RC 1 Error occurrence on some IC Same cause as that for system with one outdoor unit Same remedy as that for System with one outdoor unit 1 2 3 4 Error occurrence on all IC in the system with one outdoor unit An error is found by the outdoor unit Total capacity error 7100 Capacity code error 7101 Error in the number of connected units 7102 Address setting error 7105 Disconnection or short circuit of the transmission line for the outdoor unit on the terminal block for cen tralized control line connection TB7 Turn off the power source of the outdoor unit Malfunction of electrical system for the outdoor unit 2 Check the LED display for troubleshooting on the out door unit If an error is found check the check code definition and co
29. user may result in water leak age electric shock or fire Do not make any modifications or alterations to the unit Consult your dealer for repair Properly install the unit on a surface that can withstand its weight Improper repair may result in water leakage electric shock or fire Do not touch the heat exchanger fins with bare hands Unit installed on an unstable surface may fall and cause in jury The fins are sharp and pose a risk of cuts Only use specified cables Securely connect each cable so that the terminals do not carry the weight of the cable In the event of a refrigerant leak thoroughly ventilate the room Improperly connected cables may produce heat and start a fire If gaseous refrigerant leaks out and comes in contact with an open flame toxic gases will be generated Take appropriate safety measures against wind gusts and earthquakes to prevent the unit from toppling over Properly install the unit according to the instructions in the Installation Manual Improper installation may cause the unit to topple over and cause injury or damage to the unit Improper installation may result in water leakage electric shock or fire Only use accessories i e air cleaners humidifiers electric heaters recommended by Mitsubishi Electric Have all electrical work performed by an authorized electri cian according to the
30. 2k 4k 8k Octave band center frequencies Hz GB 4 Fan performance and corrected air flow PEFY P200VMHS E External static pressure 50Pa Power source 220 240V 50Hz 60Hz 80 Middle Static pressure Pa 40 45 50 55 60 65 70 75 Airflow m min External static pressure 150Pa Power source 220 240V 50Hz 60Hz 180 170 80 160 150 140 130 Middle 120 110 Static pressure Pa 100 90 80 70 60 40 45 50 55 60 65 70 75 Airflow rate m min External static pressure 250Pa Power source 220 240V 50Hz 60Hz 270 260 80 250 240 230 220 210 200 Middle 90 180 Static pressure Pa 70 160 50 40 130 20 10 100 40 45 50 55 60 65 70 75 Airflow rate m min HWE1016A 80 Static pressure Pa External static pressure 100Pa Power source 220 240V 50Hz 60Hz 130 T T T 120 110 100 90 80 70 60 50 40 30 40 45 50 55 60 65 70 75 80 Airflow rate m min External static pressure 200Pa Power source 220 240V 50Hz 60Hz 230 220 210 200 90 80 70 60 i Middle 50 40 Static pressure Pa 30 40 45 50 55 60 65 70 75
31. 80 Airflow rate m min GB PEFY P250VMHS E HWE1016A External static pressure 50Pa Power source 220 240V 50Hz 60Hz 100 T T T Limit 90 80 70 i Middle 60 50 40 Static pressure Pa 30 20 50 55 60 65 70 75 80 85 90 Airflow rate m min External static pressure 150Pa Power source 220 240V 50Hz 60Hz 190 180 170 160 150 140 Static pressure Pa Static pressure Pa 130 120 110 100 50 55 60 65 70 75 80 85 90 Airflow rate m min External static pressure 250Pa Power source 220 240V 50Hz 60Hz 290 280 270 260 250 240 230 220 210 200 190 180 170 160 150 140 130 120 110 100 Middle 65 70 75 Airflow rate m min Static pressure Pa External static pressure 100Pa Power source 220 240V 50Hz 140 H 130 120 110 100 90 80 70 60 50 40 30 50 55 60 65 70 75 80 85 Airflow rate m min External static pressure 200Pa Power source 220 240V 50Hz 60Hz 240 T 7 230 90 220 210 200 190 180 Static pressure Pa 170 iL middle 160 150 140 130 120 110 100 90 80 50 55 60 65 70 75 80 85 Airflow rate m min 90 GB
32. CN7V from the Indoor controller board 2 Remove the drive motor J using two spanners 3 When replacing the valve body K protect the sur Indoor controller board J G H rounding parts e g insulation and wires from brazing A torch flame Fig 5 HWE1016A 63 GB 4 Drainpan Exercise caution when removing heavy parts 1 Removing the bottom plate 1 Remove the twelve fixing screws on the bottom plate L to remove it Fig 6 2 Removing the drainpan 1 Pull out the drain pan M in the direction of the arrow Fig 7 Note eDrain the water out of the drain pan before removing it HWE1016A 64 GB 5 Heat exchanger 1 Remove the control box cover according to the proce dure in section 1 Control box 2 Remove the maintenance cover according to the pro cedure in section 3 Thermistor Gas pipe Liquid pipe LEV 3 Remove the thermistor and disconnect LEV connector according to the procedure in section 3 Thermistor Gas pipe Liquid pipe LEV 4 Remove the drainpan according to the procedure in section 4 Drainpan 5 Removing the Heat exchanger 1 Remove the four fixing screws on the heat exchanger N to remove it HWE1016A 65 Exercise caution when removing heavy parts Fig 9 GB 6 Reactor fan and fan motor Exercise caution when removing heavy parts 1 Remove the control box cover according to the
33. NR1 CNDB CNPW1 CNFAN CNXB1 TPOO1 TP002 CNP HWE1016A 55 For M NET transmission cable con nection 24 30VDC Emergency operation Capacity setting Function setting Function setting Remote start stop adapter For MA remote controller cable con nection 10 13 VDC Between 1 and 3 Remote display Centralized control JAMA standard HA terminal A Thermistor liquid gas temperature Connector for float switch Thermistor Inlet temperature Connect to the Power supply board Power supply voltage 220 240VAC Connect to the AC reactor Connect to the Resistor Connect to the Diode bridge Connect to the Power supply board Connect to the INV board Connect to the indoor controller board Measure the charged voltage of the inverter electrolytic capacitor here TP001 Anode TP002 Cathode Connect to the drain pump Optional parts GB 3 Power supply board 1 5 MITSUBISHI CNPW2 MADE IN JAPAN CNPW2 B 7 CNCX1 3 ag CNTHP sai CN18V CNRSC CNRSP gi CN18V HEUTE CNRSP CNXC1 A Ey SE lq CNRSC O CNXCI L260 2 1 ARS 5 O 4 INV board CNINV CNVDC SW2 MADE IN JAPAN C
34. NVDC CNINV 1 HH CN15V INVZS01 BOARD W27470660S MITSUBISHI CNRS2 CNCT1 E CNCT2 CNTH en oF OF em 3 T 2 56 poo g i 3 cess 3 CNRS2 SW2 CNTH CNCT1 CNCT2 HWE1016A 56 Connect the board Connect to the indoor controller board Connect to the indoor controller board Connect to the INV board Connect to the INV board Inverter function setting Connect to the NF board Connect to the FAN motor Power line Connect to the Power supply board Connect to the Power supply board Connect to the FAN motor Rotor position sensor input Connect to the Current sensor Connect to the Thermistor heat sink GB 7 Dipswitch setting Factory setting 1 Function setting 1 SW1 Switch position Function Switch setting ON OFF 1 Active Thermistor Built in thermistor on the remote Indoor unit Intake air thermistor controller 2 Filter clogging detection Available Unavailable 3 Filter life 2500 hr 100 hr 4 Outdoor air intake Enabled Disabled 5 Remote display Thermo ON signal Fan output 6 Humidifier operation During heating mode During heating operation 7 Fan speed Low Very low 8 Fan speed at heating Thermo OFF Preset fan speed Follows the setting of SW1 7 9 Auto restart after power failure Enabled Disabled 10 Power start stop Enabled Disabled Factory settin
35. OFF 350 model OFF ON ON OFF 400 model ON ON ON OFF 450 model OFF OFF OFF ON Check the setting for the model selection switch on the outdoor unit Dipswitches SW5 1 5 4 on the outdoor unit control board 1 Error Code 7111 Remote controller sensor fault 2 Error definition and error detection method This error occurs when the temperature data is not sent although the remote controller sensor is specified 3 Error source cause check method and remedy ON Error source Cause Check method and remedy Indoor unit The remote controller without the temperature Replace the remote controller with the one OA process sensor the wireless remote controller or the with built in temperature sensor ing unit ME compact remote controller mounted type is used and the remote controller sen sor for the indoor unit is specified SW1 1 is HWE1016A 2472 GB 3 1 1 fan motor fan motor INV board If there are problems only with the fan motor replace the fan motor only Fan motor failure will cause an overcurrent to pass through the inverter but the inverter is protected from damage with the protection function that will stop the inverter when an overcurrent is detected If the inverter fails replace the failed components on the inverter If both the fan motor and inverter fail
36. W 1kQ LED DC15V 20mA or more When the main power is turned on the indoor controller board outputs pulse signals to the indoor unit LEV for 10 seconds and the outdoor unit circuit board outputs pulse signals to the outdoor unit LEV for 17 seconds If any of the LED remains lit or unlit the drive circuit is faulty When the drive circuit has a problem replace the control board LEV mechanism is locked If the LEV is locked the drive motor runs idle and makes a small clicking sound When the valve makes a closing and opening sound the valve has a problem Replace the LEV Disconnected or short circuited LEV motor coil Measure resistance between the coils red white red orange brown yellow brown blue using a tester They are normal if resistance is 1500hm 1096 Replace the LEV coils Incomple sealing leak from the valve When checking the refrigerant leak from the indoor LEV run the target indoor unit in the fan mode and the other indoor units in the cooling mode Then check the liquid temperature TH22 with the self diagnosis LED When the unit is running in the fan mode the LEV is ful ly closed and the temperature detected by the thermis tor is not low If there is a leak however the temperature will be low If the temperature is extremely low compared with the inlet temperature displayed on the remote controller the LEV is not properly sealed however if there is a little leak
37. ailure If no problems were found with items 1 through 4 above replace the INV board Note Refer to section 8 Troubleshooting item 4 DC fan motor fan motor INV board for error codes related to the inverter page 48 HWE1016A 23 1 Error Code 4225 Abnormal bus voltage rise Indoor unit 2 Error definition and error detection method If gt 425V is detected during inverter operation 3 Cause check method and remedy 1 Different voltage connection Check the power supply voltage on the power supply terminal block TB2 2 INV board failure If the problem recurs replace the INV board Note Refer to section 8 Troubleshooting item 4 DC fan motor fan motor INV board for error codes related to the inverter page 48 1 Error Code 4225 Logic error Indoor unit 2 Error definition and error detection method H W error If only the H W error logic circuit operates and no identifiable error is detected 3 Cause Check method and remedy Cause Check method and remedy 1 External noise If the problem recurs when the unit is put into opera 2 INV board fail tion replace the INV board oard failure Note Refer to section 8 Troubleshooting item 4 fan motor fan motor INV board for error codes related to the inverter page 48 1 Error Code 4235 Heatsink overheat protect
38. and remedy 1 Drain pump failure Check for proper functioning of the drain pump mechanism 2 Drain water drainage problem Check for proper drainage Clogged drain pump Clogged drain piping 3 Stuck float switch Check for normal operation of the float switch Check for slime in the moving parts of the float switch 4 Float switch failure Check the resistance with the float switch turned on and turned off 5 Indoor controller board failure Replace indoor controller board Drain pump drive circuit failure Float switch input circuit failure 6 Items 1 through 5 above and an indoor unit electronic Check the solenoid valves on the indoor unit for valve closure failure leaky valve occurred simultane leaks ously HWE1016A GB 1 Error Code 2503 Drain sensor Thd fault 2 Error definition and error detection method If the open or short circuit of the thermistor has been detected for 30 seconds this condition is considered to be a preliminary error and the unit goes into the 3 minute restart delay mode If another episode of the above condition is detected during the preliminary error this is considered a drain sensor error If the short or open circuit of the thermistor is no longer detected normal operation will be restored in 3 minutes This error is detected when one of the following conditions are met During Cool Dry operation Liquid pipe tem
39. arting the inverter 3 Cause check method and remedy Cause Check method and remedy 1 Ground fault of the fan motor Refer to 8 4 2 4 page 50 2 Inverter failure 1 2 Refer to 8 4 2 1 page 49 Refer to 8 4 2 2 page 49 Note Refer to section 8 Troubleshooting item 4 DC fan motor fan motor INV board for error codes related to the inverter page 48 1 Error Code 4255 Overcurrent error due to short circuited motor Indoor unit 2 Error definition and error detection method When a short is detected on the load side just before starting the inverter operation 3 Cause Check method and remedy Cause Check method and remedy 1 Short circuited fan motor coil or inverter failure Refer to 8 4 2 1 page 49 Refer to 8 4 2 2 page 49 Refer to 8 4 2 3 page 50 2 Output wiring Check for a short circuit Note Refer to section 8 Troubleshooting item 4 fan motor fan motor INV board for error codes related to the inverter page 48 HWE1016A 26 GB 1 Error Code 4255 Position detection error at startup Indoor unit 2 Error definition and error detection method Position error is detected by the hall sensor at inverter startup 3 Cause Check method and remedy Cause Check method and remedy 1 Loose connect
40. ation Output phase Output state Output pulses change in the following orders when the Valve is closed 1 2 3 4 1 number 2 3 Valve is 4 93 592 514 1 OFF OFF 2 ON OFF 1 When the LEV opening angle does not change 3 ON ON all the output phases will be off 4 3 LEV valve closing and opening operation Valve closed Valve opening refrigerant flow rate 80 100 pulses HWE1016A Valve open 2 When the output is open phase or remains ON the motor cannot run smoothly and rattles and vibrates ON Q When the power is turned on the valve closing signal of 2200 pulses will be output from the indoor board to LEV to fix the valve position It must be fixed at point When the valve operates smoothly no sound from LEV or no vibration occurs however when the pulses change from to in the chart or the valve is locked a big sound occurs Whether a sound is generated or not can be determined by holding a screwdriver against it then placing your ear against the handle Fully open 2000 pulses Pulses 52 GB 2 Judgment methods and possible failure mode Malfunction mode Judgment method Remedy Microcomputer driver circuit fail ure Disconnect the control board connector and connect the check LED as shown in the figure below NOU RO o LED resistance 0 25
41. ation resistance failure of the electrical components other than the in verter 5 Connect the unit to a different power supply circuit 6 Ifthe problem appeared suddenly there is a possibility that the inverter output line had a ground fault See section 2 2 and 2 3 For problems other than the ones listed above consult your dealer 7 Accidental malfunction due to 1 Check that the unit is properly grounded external noise 2 Check that a shielded cable is used if required Check that the shield is prop erly grounded 3 Check that the transmission line or wiring to external devices are not routed adjacent to the power wires or are placed in the same conduit with them For problems other than the ones listed above consult your dealer Inside the inverter is a large capacity electrolytic capacitor and the residual voltage that remains after the main power is turned off presents a risk of electric shock Before checking the inverter related parts turn off the main power keep it turned off for at least 10 minutes and check that the voltage at both ends of the main capacitor C015 C016 has dropped to a safe level Measure the voltage at both ends of the electrolytic capacitor at the check point where CHECK VOLTAGE is written in the left top area of the NF board The IPM on the inverter becomes damaged if there are loose screws or connectors When a problem occurs after replacing c
42. e controller Delete unnecessary address in formation using the manual set ting function of ME remote controller Refer to Outdoor ser vice handbook Deletion of connection informa tion of the outdoor unit by the deleting switch Note that the above method will delete all the group set tings set via the ME remote controller and all the inter lock settings between LOSS NAY units and indoor units Turn off the power source of the outdoor unit and wait for 5 minutes Turn on the dip switch SW2 2 on the outdoor unit control board Turn on the power source of the outdoor unit and wait for 5 minutes Turn off the power source of the outdoor unit and wait for 5 minutes Turn off the dip switch SW2 2 on the outdoor unit control board Turn on the power source of the outdoor unit HWE1016A 41 GB 1 2 Error Code 6608 No response error Error definition and error detection method When no response command is returned although acknowledgement ACK is received after transmission an error is detect ed When the data is transmitted 10 times in a row with 3 seconds interval an error is detected on the transmission side Note The address attribute appeared on the display on the remote controller indicates the controller where an error oc curred Cause The transmission line work is performed while the power is on the transmitted data will collide
43. ecifications subject to change without notice
44. ed filter 4 Indoor controller board failure If the above item checks out OK replace the indoor con Drain pump drive circuit failure troller board Drain heater output circuit failure 5 Items 1 through 4 above and an indoor unit elec Check the solenoid valves on the indoor unit for leaks tronic valve closure failure leaky valve occurred si multaneously HWE1016A 20 GB 3 Error Code 2502 Drain pump fault Models with a float switch Error definition and error detection method The immersion of sensor tip in water is detected by the ON OFF signal from the float switch Submergence of the sensor When it is detected that the float switch has been ON for 15 seconds it is interpreted that the sensor tip is immersed in water Sensor in the air When it is detected that the float switch has been OFF for 15 seconds it is interpreted that the sensor tip is not immersed in water Ifit is detected that the float switch has been ON for 3 minutes after the immersion of the sensor tip was detected this is con sidered a drain pump failure and 2502 appears on the monitor The total time it takes for this error to be detected is 3 minutes and 15 seconds including the time it takes for the first im mersion of the sensor tip to be detected Detection of drain pump failure is performed while the unit is stopped The following criteria are met when the criteria for the forced stoppage
45. error curred 3 Cause 1 When the wiring work of or the polarity of either the indoor or outdoor transmission line is performed or is changed while the power is on the transmitted data will collide the wave shape will be changed and an error will be detected 2 Grounding fault of the transmission line 3 When grouping the indoor units that are connected to different outdoor units the male power supply connectors on the multiple outdoor units are connected to the female power supply switch connector CN40 4 When the power supply unit for transmission lines is used in the system connected with MELANS the male power supply connector is connected to the female power supply switch connector CN40 on the outdoor unit 5 Controller failure of the source of the error 6 When the transmission data is changed due to the noise on the transmission line 7 Voltage is not applied on the transmission line for centralized control in case of grouped indoor units connected to different outdoor units or in case of the system connected with MELANS 4 Check method and remedy HWE1016A ls the transmission line work performed while the power is Turn off the power source of outdoor indoor units and turn them on again NO Check the power source of the indoor unit 198 264V Check the transmission line work is performed and the shielded wire is treated properly Faulty power source work
46. etection method When a short or an open of THHS is detected just before or during the inverter operation 3 Cause check method and remedy Cause Check method and remedy 1 Loose connector Check the CNTH on the INV board for proper connection 2 THHS sensor fault If the problem persists after resuming operation replace the THHS sensor 3 INV board failure If no problems were found with items 1 and 2 above and the problem per sists after resuming operation replace the INV board Note Refer to section 8 Troubleshooting item 4 fan motor fan motor INV board for error codes related to the inverter page 48 1 Error Code 5305 ACCT sensor circuit fault Indoor unit 2 Error definition and error detection method When abnormal value is detected by the ACCT detection circuit immediately before the inverter starts 3 Cause check method and remedy Cause Check method and remedy 1 INV board failure Refer to 8 4 2 1 page 49 2 Fan motor error Refer to 8 4 2 4 page 50 Note Refer to section 8 Troubleshooting item 4 fan motor fan motor INV board for error codes related to the inverter page 48 HWE1016A EXE GB 1 Error Code 5305 Open circuited IPM Loose ACCT connector Indoor unit 2 Error definition and error detection method
47. etween terminals 22 1096 Measure the resistance between terminals 1 or less AC reactor ACL Measure the resistance between terminals and the chassis Current sensor Disconnect the CNCT2 connector and check the resistance between the terminals ACCT 5800 300 THHS sensor Disconnect the connector CNTH and measure the resistance between connector ter minals Check that the terminals are not short circuited 0 or open circuited Troubleshooting the diode bridge Measure the resistance between terminals of the diode bridge with a tester and use the measured value for troubleshooting Read before taking measurements Check the polarity before taking measurements Black is positive on a regular multimeter when it is used to measure resis tance Check that the circuit is not completely open or short circuited 0 These resistance measurement values are provided only as a guide and small deviations from these values are allowed If the resistance between a given terminal and other terminals all fall within a range of minus 50 and plus 100 the resis tance is normal Tester restrictions Use a tester that has an internal voltage supply of 1 5 V or greater Use a dry battery powered tester An accurate diode resistance measurement cannot be obtained with a button battery operated card tester because of its low applied voltage Use a tester that can measure i
48. fault OA processing unit 5104 Intake air temperature sensor TH1 fault OA processing unit Intake air temperature sensor TH24 fault All fresh 100 outdoor air type indoor unit 2 Error definition and error detection method If a short or an open is detected during thermostat ON the outdoor unit turns to anti restart mode for 3 minutes When the error is not restored after 3 minutes if restored the outdoor unit runs normally the outdoor unit makes an error stop Short detectable at 90 194 F or higher Open detectable at 40 C 40 F or lower Sensor error at gas side cannot be detected under the following conditions During heating operation During cooling operation for 3 minutes after the compressor turns on 3 Cause check method and remedy Cause Check method and remedy 1 Thermistor failure Check the thermistor resistor 0 C 32 F 15 kohm 2 Connector contact failure n EE 9 7 kohm 20 C 68 F 6 4 kohm 30 C 86 F 4 3 kohm 40 C 104 F 3 1 kohm 3 Disconnected wire or partial disconnected thermistor wire 4 Unattached thermistor or contact failure 5 Indoor board detection circuit failure Check the connector contact When no fault is found the indoor board is a failure HWE1016A 28 GB 1 Error Code 5110 Heatsink temperature sensor 5 fault Indoor unit 2 Error definition and error d
49. g ON E EE orFEMNE NEN HEN 12345678910 2 SW3 Switch position Function Switch setting ON OFF 1 Unit type Cooling only Heat pump 2 l l 3 z 4 l 5 z z 6 z 7 8 Heating 4 deg up Disabled Enabled 9 3 l l 10 Dipswitch settings must be made while the unit is stopped Factory setting ON E oFF EEEE 1234 HWE1016A 57 2 Capacity code setting 1 SW2 Dipswitch settings must be made while the unit is stopped Factory setting The switches are set to correspond to the unit capacity ON E E BM BN orFrFBENB IN OFFIE INN 123456 123456 PEFV P200 PEFV P250 3 Model setting 1 SW4 1 Indoor controller board Dipswitch settings must be made while the unit is stopped Factorv setting ON EN B H OFFI EE Gil E 12345678910 Note Changes made to the dipswitches SW1 SW2 and SW3 will become effective when the unit comes to a stop remote controller off There is no need to power cycle the unit 4 Power voltage setting 1 SW5 1 Indoor controller board Dipswitch settings must be operated with the main power turned OFF Factory setting Set SW5 to 240V side when the power supply is 240 volts EN When the power supply is 220 and 230 volts set SW5 to 220V side 240V 230V 5 External s
50. he following status can be confirmed on LED1 and 2 on the indoor unit board If LEDT is lit the main power source of the indoor unit is turned on If LED2 is lit the MA remote controller line is being powered HWE1016A 43 1 2 DONA Error Code 6832 MA remote controller signal transmission error Synchronization error Error definition and error detection method MA remote controller and the indoor unit is not done properly Failure to detect opening in the transmission path and unable to send signals Indoor unit 3 minutes Remote controller 6 seconds Cause Contact failure of the remote controller lines of MA remote controller or the indoor unit 2 or more remote controllers are set to MAIN Overlapped indoor unit address Noise interference on the remote controller lines Failure to meet wiring regulations Wire length Wire size Number of remote controllers tNumber of indoor units Problems with the circuit on the remote controller that sends or receives the signals from the remote controller Check method and remedy Check for disconnected or loose transmission lines for the indoor units or MA remote controllers Confirm that the power is supplied to the main power source and the remote controller line Confirm that MA remote controller s capacity limit is not exceeded Check the sub main setting of the MA remote controllers One of them must be set to MAIN Diagnose t
51. he power source is turned off separately the microcomputer will not be reset and the error will not be corrected gt If the same error occurs the error source controller is a failure HWE1016A 83 1 Error Code 6607 No ACK error 2 Error definition and error detection method The error is detected when no acknowledgement ACK signal is received after the transmission eg When the data is trans mitted six times in a row with 30 seconds interval the error is detected on the transmission side Note The address attribute appeared on the display on the remote controller indicates the controller which did not provide the response 3 System configuration 1 System with one outdoor unit Error Detection source ad Error display Cause Check method and remedy d method ress Outdoor ME remote No acknowl 1 Contact failure of transmission Turn off the power source of the unit OC controller RC edgement line of OC or IC outdoor unit and turn it on MA remote ACK at IC ZR again controller MA transmis 2 Decrease of transmission line If the error is accidental it will sion to OC voltage signal by exceeding ac run normally If not check the ceptable range of transmission causes 1 4 wiring Farthest 200 m 656ft or less Remote controller wiring 10m 32ft or less 3 Erroneous sizing of transmission line N
52. he remote controller described in the remote controller installation manual OK no problems with the remote controller check the wiring regulations NG Replace the MA remote controller 6832 6833 ERC Due to noise interference Go to 6 Check wave shape noise on MA remote controller line by following the instructions detailed in the Outdoor service handbook When no problems are found with items 1 through 6 replace the indoor unit board or the MA remote controller The following status can be confirmed on LED1 and 2 on the indoor unit board If LEDT is lit the main power source of the indoor unit is turned on If LED2 is lit the MA remote controller line is being powered HWE1016A 44 GB 1 2 CELLE Error Code 6833 MA remote controller signal transmission error Hardware error Error definition and error detection method Communication between the MA remote controller and the indoor unit is not done properly An error occurs when the transmitted data and the received data differ for 30 times in a row Cause Contact failure of the remote controller lines of MA remote controller or the indoor unit 2 or more remote controllers are set to MAIN Overlapped indoor unit address Noise interference on the remote controller lines Failure to meet wiring regulations Wire length Wire size Number of remote controllers Number of indoor units Problems with the circuit on the
53. ion Indoor unit 2 Error definition and error detection method When the heat sink temperature THHS remains at or above 85 C 185 F is detected 3 Cause check method and remedy Cause Check method and remedy 1 Air passage blockage Check that the heat sink cooling air passage is not blocked 2 Fan motor error Check the fan motor for proper operation sound vibration and rotation If any problems were found check the items listed in sections 2 3 and 4 gt Refer to 8 4 2 3 4 page 50 3 THHS failure If the problem persists after resuming operation replace the THHS sensor 4 INV board fault If no problems were found with items 1 through 3 and the same error is de tected after resuming operation replace the INV board Note Refer to section 8 Troubleshooting item 4 fan motor fan motor INV board for error codes related to the inverter page 48 HWE1016A 24 GB 1 Error Code 4255 IPM error Indoor unit 2 Error definition and error detection method IPM error signal is detected 3 Cause check method and remedy Cause Check method and remedy 1 Power supply environment Check the power supply voltage Check whether the power voltage is 198V or above across all phases 2 Static pressure setting error Check that the static pressure setting and the design static pressure are correct Refer to 8 4 2 1 page 49
54. ission line for 4 10 minutes in a row due to noise Note The address attribute appeared on the display on the remote controller indicates the controller where an error curred 3 Cause check method and remedy Cause Check method and remedy 1 The transmission processor cannot be transmit ted as the short wavelength voltage like noise ex ists consecutively on the transmission line 2 Error source controller failure Check the transmission wave shape and noise on the transmission line Refer to the service handbook that came with the outdoor unit gt No noise indicates that the error source controller is a failure gt If noise exists investigate the noise 1 Error Code 6606 Communication error between device and transmission processors 2 Error definition and error detection method Communication error between the main microcomputer on the indoor unit board and the microcomputer for transmission Note The address attribute appeared on the display on the remote controller indicates the controller where an error oc curred 3 Cause check method and remedy Cause Check method and remedy 1 Data is not properly transmitted due to accidental erroneous operation of the controller of the error source 2 Error source controller failure Tum off the power source of the outdoor and the indoor units When t
55. it 1 Indoor control board Factory setting VAIN Note Changes to the dipswitches SW11 SW12 SW14 and SW15 must be made while the unit is stopped and the remote controller is OFF HWE1016A 60 GB 9 Disassembly Procedure 1 Control box 1 Removing the control box cover 1 Remove the two fixing screws on the cover A to re move it HWE1016A 61 Fig 2 Exercise caution when removing heavy parts GB 2 Thermistor Intake air HWE1016A Exercise caution when removing heavy parts Remove the control box cover according to the proce dure in section 1 Control box Disconnect the connector CN20 from the Indoor con troller board Pull out the thermistor holder B and thermistor C on the control box Fig 3 62 GB 3 Thermistor Gas pipe Liquid pipe LEV Exercise caution when removing heavy parts 1 Remove the control box cover according to the proce dure in section 1 Control box 2 Removing the maintenance cover 1 Remove the ten fixing screws on the cover D cover E and cover F to remove the maintenance cover Fig 4 3 Removing the thermistor 1 Disconnect the connector CN44 from the Indoor con troller board 2 Remove the thermistor G from the thermistor holder H on the copper tube Thermistor size Liquid pipe 88mm Gas pipe 66mm 4 Removing the LEV 1 Disconnect the connectors CN60 and
56. ix times in a row with 30 seconds interval the error is detected on the transmission side Note The address attribute appeared on the display on the remote controller indicates the controller which did not provide the response ACK 3 System configuration 3 System connected to the system controllers MELANS Detection source Error display maihad Cause Check method and remedy address Out ME remote No acknowl Same cause as that for system with one Same remedy as that for door controller RC edgement outdoor unit system with one outdoor unit System control at IC unit OC ler SC transmis MA remote sion to OC controller MA Indoor ME remote No acknowl Same as grouping of units in a system Same remedy as that for unit controller RC edgement with multiple outdoor units grouping of units in a sys IC MA remote ACK at RC tem with multiple outdoor controller MA transmis units sion to IC System control No acknowl 1 Error occurrence on some IC Same remedy as that for ler SC edgement system with one outdoor ACK atsc 1 Same cause as that for system with one unit transmis outdoor unit siontolC 5 Error occurrence on all IC inthe system 1 Check the LED display with one outdoor unit fortroubleshooting on the outdoor unit 1 Total capacity error 7100 If an error is found check the check code 2 Capacity code error 7101 definition and
57. l Button 2 Timer Menu Button 8 Ventilation Button Monitor Set Button Operation Button 3 Mode Button 9 Check Clear Button Back Button 10 Test Run Button 4 Timer On Off Button 11 Filter Button Set Day Button 4 Button 5 Louver Button 12 ON OFF Button Operation Button 13 Position of built in room thermistor 6 Fan Speed Button 14 Set Time Button Keep the remote controller out of direct sunlight to ensure accurate measurement of room temperature The thermistor at the lower right hand section of the remote controller must be free from obstructions to ensure accurate mea surement of room temperature HWE1016A 2 Remote Controller Display oou gt HWE1016A Va PA MITSUBISHI ELECTRIC TIME SUN TIMER AFTER LI AU FILTER E DOO Fe 6 Saal por J LINII ouv 2 520 38L Nur Current time Timer time Centralized control indicator Timer OFF indicator Timer mode indicator Operation mode display t COOL DRY AUTO FAN i HEAT Function mode indicator Preset temperature Power indicator lt 2 Louver swing Ventilation Filter sign Sensor position Room temperature Vane setting Fan speed Operation lamp GB 2 Specifications 1 Specifications
58. l is received after the transmission eg When the data is trans mitted six times in a row with 30 seconds interval the error is detected on the transmission side Note The address attribute appeared on the display on the remote controller indicates the controller which did not provide the response ACK 3 System configuration 2 Grouping of units in a system with multiple outdoor units Error source address Error display Detection method Cause Check method and remedy LOSS NAY LC ME remote controller RC MA remote controller MA No acknowl edgement ACK at IC transmissionto LC 1 2 3 4 5 Factors 1 through 5 in the Factors in system with one outdoor unit When perform ing an interlocked operation of the LOSSNAY unit and the indoor units that are connect ed to different outdoor units Disconnection or short circuit of the transmission line for the outdoor unit on the termi nal block for centralized con trol line connection TB7 When multiple outdoor units are connected and the power source of one of the outdoor units has been shut off The male power supply con nector of the outdoor unit is not connected to the female power supply switch connec tor CN40 The male power supply con nectors on 2 or more outdoor units are connected to the fe male power supply switch connector CN40 for central ized control If an e
59. n small increments It will allow for more accurate measurement External view Reference values for resistance check Black Fi pes L N e 5 200Q 5 200 Q L T C L 5 200Q N 5 200Q Internal circuit diagram A L N Precautions for inverter parts replacement Check for faulty or loose wiring To avoid damage to the IPM thoroughly check the wiring to the main circuit components in the diode bridge Securely attach the diode bridge with mounting screws HWE1016A 51 GB 4 LEV LEV operation An LEV Indoor unit Linear expansion valve is a stepping motor driven valve that operates by receiving the pulse signals from the indoor and outdoor unit control boards 1 Indoor LEV The valve opening changes according to the number of pulses 1 Indoor controller board and LEV connection 6 12VDC J A A6 aa aaa 1 Yy l nu o4 04 i lt D 3 EB M ex 3 a a eee E 1 i zt eT H ws OS A Brown F White B Red G Control board C Blue Connection CN60 CN7V D Orange 1 Drive circuit E Yellow J Linear expansion valve 2 Pulse signal output and valve oper
60. nsmission If the error is accidental it will sion to RC line for ME remote controller run normally 3 When the address of ME remote If not check the causes 1 4 controller is changed in the mid dle of the operation 4 remote controller failure HWE1016A 34 1 Error Code 6607 No ACK error 2 Error definition and error detection method The error is detected when no acknowledgement ACK signal is received after the transmission eg When the data is trans mitted six times in a row with 30 seconds interval the error is detected on the transmission side Note The address attribute appeared on the display on the remote controller indicates the controller which did not provide the response ACK 3 System configuration 2 Grouping of units in a system with multiple outdoor units Error Detection source Error display method Cause Check method and remedy address Outdoor ME remote No acknowl Same cause as that for sys Same remedy as that for sys unit controller RC edgement tem with one outdoor unit tem with one outdoor unit OC MA remote at IC controller MA transmission to OC Indoor ME remote No acknowl 1 Same causes as 1 5 for 1 Turn off the power sources of unit controller RC edgement system with one outdoor unit the outdoor and indoor units IC MA remote ACK at RC for 5 or more minutes and turn controller MA tran
61. ode HF inary Error code definition S zix 5 Notes code detail 5 5 4 9 5 0 2 22 8 6608 1 6831 _ controller signal reception error No signal re ception MA remote controller signal transmission error 6932 Synchronization error B 8 MA remote controller signal transmission error 6833 7 Hardware error 8 6834 _ _ MA controller signal reception error Start bit de tection error 7100 Total capacity error O 7101 Capacity code setting error ojojo 7102 Wrong number of connected units 7105 Address setting error O 7106 Attribute setting error O 7110 _ Connection information signal transmission recep tion error 7111 Remote controller sensor fault Oojo 7113 Function setting error 7117 Model setting error O 7130 Incompatible unit combination O Note The last digit in the check error codes in the 4000 s and 5000 s and two digit detail codes indicate if the codes apply to compressor inverter on fan inverter Example Code 4225 detail code 108 Bus voltage drop in the fan inverter system Code 4230 Heatsink overheat protection in the compressor inverter system The last digit Inverter system 0 or 1 Compressor inverter system 5 Fan inverter system There are no preliminary error codes or detail codes for indoor units HWE1016A ATE GB 1 Error Code 0403
62. of outdoor unit system stoppage are met Liquid pipe temperature inlet temperature S 10 C 18 F has been detected for 30 minutes is detected by the float switch that the sensor tip has been immersed in water for 15 minutes or more The conditions that are listed under items 1 through 3 above are always met before the criteria for the forced stoppage of the outdoor unit The indoor unit that detected the conditions that are listed in item 4 above brings the outdoor unit in the same refrigerant circuit to an error stop compressor operation prohibited and the outdoor unit brings all the indoor units in the same refrigerant circuit that are in any mode other than Fan or Stop to an error stop Forced stoppage of the outdoor unit Detection timing The error is detected whether the unit is in operation or stopped This error is detected whether the unit is in operation or stopped Ending criteria for the forced stoppage of outdoor unit Power reset the indoor unit that was identified as the error source and the outdoor unit that is connected to the same refrig erant circuit Forced stoppage of the outdoor unit cannot be cancelled by stopping the unit via the remote controller Note Items 1 3 and 4 7 are detected independently from each other Note The address and attribute that appear on the remote controller are those of the indoor unit that caused the error Cause check method and remedy Cause Check method
63. omponents faulty wiring is often the cause of the problem Check the wiring screws connectors and Fasten terminals for proper connection Do not plug or unplug the inverter connectors while the main power is turned on as this will result in damage to the circuit board Electric current sensor will break if a current is passed through the sensor without it being connected to the circuit board Con nect the current sensor to the appropriate connectors on the circuit board before operating the inverter HWE1016A 48 GB 2 Troubleshooting the inverter output related problems Check items Symptoms Actions to take 1 1 Tum off the breaker 1 Overcurrent errors Replace the INV board Check the Be sure to turn off the Error code 4255 INV board breaker error detec tion circuit 2 Disconnect connec 2 Logic error Replace the INV board unloaded tor CNINV from the INV Error code 4225 board 3 Tum on the breaker 3 ACCT sensor circuit failure Replace the INV board Error code 5305 4 Operate the indoor 4 Position detection error If the problem described at left happens units Error code 4255 when the power is turned on for the first time replace the INV board Removing the connector CNINV while the power is turned on can cause the problem described at left Be sure to turn off the power before disconnecting the connector CNINV 5 Open circuited IPM or dis Normal connec
64. ool Dry mode and when the drain pump goes from OFF to ON this condition is considered preliminary water leakage While this error is being detected humidifier output cannot be turned on 2 If the drain pump turns on within one hour after preliminary water leakage is detected and the above mentioned condition is detected two consecutive times water leakage error water leakage is detected and 2500 appears on the monitor 3 Detection of water leakage is also performed while the unit is stopped 4 Preliminary water leakage is cancelled when the following conditions are met One hour after the preliminary water leakage was detected it is not detected that the drain pump goes from OFF to ON The operation mode is changed to Cool Dry The liquid pipe temperature minus the inlet temperature is 10 C 18 F or less 3 Cause check method and remedy Cause Check method and remedy 1 Drain water drainage problem Clogged drain pump Clogged drain piping Backflow of drain water from other units Check for proper drainage Stuck float switch Check for slime in the moving parts of the float Switch 2 Check for normal operation of the float switch 3 Float switch failure Check the resistance with the float switch turned on and turned off Reference Drain pump operation triggered by a submergence of the liquid level sensor except d
65. oor temperature 35 CDB 95 FDB Heating Indoor temperature 20 CDB 68 FWB Outdoor temperature 7 CDB 6 CWB 45 FDB 43 F WB 2 Measured at a power supply voltage of 230 V HWE1016A GB 2 Electrical component specifications Component Symbol KA 21 Resistance 0 C 15kQ 10 C 9 6kQ 20 C 6 3kQ 25 C 5 4kQ 30 C 4 3kQ 40 C 3 0kQ Liquid pipe thermistor TH22 Resistance 0 C 15kQ 107C 9 6kO 20 C 6 3kQ 25 C 5 4kQ 30 C 4 3kQ 40 C 3 0kQ Gas pipe thermistor TH23 Resistance 0 C 15kQ 10 C 9 6kQ 20 C 6 3kQ 25 C 5 4kQ 30 C 4 3kQ 40 C 3 0kOQ Fuse INV board 201 250 15 Fuse board 2001 250 10 Fuse board F100 250V 3 15A Fan motor MF 8 pole Output 870W ERC8801BB Linear expansion valve iE 12VDC Stepping motor drive port diameter 23 2 0 2000 pulse aoe supply terminal TB2 L 450V 30A HWE1016A 4 GB 3 Sound pressure levels 1 Sound pressure level Ceiling concealed 2 NC curves PEFY P200VMHS E External Static Pressure 50Pa Power Source 220 240V 50Hz 60Hz 70 0 65 0 60 0 20 55 0 50 0 45 0 40 0 35 0 30 0 25 0 20 0 Approximate minimum Octave band pressure level dB OdB audible limit on continuous noise 15 0 10 0 63 125 250 500 1k 2k Octave band center frequencies Hz
66. or Check the CNCT1 and CNINV connectors on the INV board for proper connection 2 Inverter failure or fan motor error Refer to 8 4 2 2 page 49 Refer to 8 4 2 3 page 50 Note Refer to section 8 Troubleshooting item 4 fan motor fan motor INV board for error codes related to the inverter page 48 1 Error Code 4255 Position detection error during operation Indoor unit 2 Error definition and error detection method Position error is detected by the hall sensor during operation 3 Cause Check method and remedy Cause Check method and remedy 1 Loose connector Check the CNCT1 and CNINV connectors on the INV board for proper connection 2 Inverter failure or fan motor error Refer to 8 4 2 2 page 49 Refer to 8 4 2 3 page 50 Note Refer to section 8 Troubleshooting item 4 fan motor fan motor INV board for error codes related to the inverter page 48 HWE1016A LIT GB 1 Error Code 5101 Return air temperature sensor TH21 fault Indoor unit Return air temperature sensor TH4 fault OA processing unit 5102 Pipe temperature sensor TH22 fault Indoor unit Pipe temperature sensor TH2 fault OA processing unit 5103 Gas side pipe temperature sensor TH23 fault Indoor unit Gas side pipe temperature sensor TH3
67. ot within the range below Wire diameter 1 25mm AWG16 or more 4 Indoor unit control board failure Indoor unit ME remote No acknowl 1 When IC unit address is changed Turn off the outdoor indoor units IC controller RC edgement or modified during operation for 5 or more minutes and turn MA remote ACK at RC them on again controller MA transmis 2 Faulty or disconnected IC trans If the error is accidental they sion to IC mission wiring will run normally 3 Disconnected IC connector If not check the causes 1 5 CN2M 4 Indoor unit controller failure 5 remote controller failure LOSSNAY ME remote No acknowl 1 The power source of LOSSNAY Turn off the power source of LC controller RC edgement has been shut off LOSSNAY and turn it on again MA remote ACK at IC If the error is accidental it will controller MA transmis 2 When the address of LOSSNAY run normally sion to LC is changed in the middle of the If not check the causes 1 5 operation 3 Faulty or disconnected transmis sion wiring of LOSSNAY 4 Disconnected connector CN1 on LOSSNAY 5 Controller failure of LOSSNAY ME remote ME remote No acknowl 1 Faulty transmission wiring at IC Turn off the power source of the controller controller RC edgement unit side outdoor unit for 5 minutes or RC MA remote ACK at IC MW more and turn it on again controller MA transmis 2 Faulty wiring of the tra
68. oxic gases will be gener ated Do not try to defeat the safety features of the unit Forced operation of the pressure switch or the temperature Switch by defeating the safety features for these devices or the use of accessories other than the ones that are recom mended by Mitsubishi Electric may result in smoke fire or explosion Consult your dealer for proper disposal method Do not use a leak detection additive Precautions for handling units for use with R410A N CAUTION Do not use the existing refrigerant piping Only use R410A A large amount of chlorine that may be contained in the re sidual refrigerant and refrigerator oil in the existing piping may cause the refrigerator oil in the new unit to deteriorate Use refrigerant piping materials made of phosphorus deox idized copper Keep the inner and outer surfaces of the pipes clean and free of such contaminants as sulfur oxides dust dirt shaving particles oil and moisture Contaminants in the refrigerant piping may cause the refrig erator oil to deteriorate Store the piping materials indoors and keep both ends of the pipes sealed until immediately before brazing Keep el bows and other joints wrapped in plastic Infiltration of dust dirt or water into the refrigerant system may cause the refrigerator oil to deteriorate or cause the compressor to malfunction Use a small amount of es
69. perature minus inlet temperature is equal to or smaller than 10 C 18 F except during the defrost cycle When the liquid temperature thermistor or suction temperature thermistor or short or open circuited Drain pump is in operation One hour has elapsed since the drain sensor went off Short 90 194 F or above Open 20 4 or below 3 Cause check method and remedy Cause Check method and remedy 1 Faulty connector CN31 insertion Check for connector connection failure Reinsert the connector restart the operation and check for proper operation Broken or semi broken thermistor wire 2 Check for a broken thermistor wire Thermistor failure 3 Check the resistance of the thermistor O C 32 6 0 10 50 F 3 9kQ2 20 68 2 6 30 C 86 F 1 8kQ 40 C 104 F 1 3kQ Indoor controller board error detection circuit failure 4 Replace the indoor controller board if the problem recurs when the unit is operated with the No 1 and No 2 pins on the drain sensor connector CN31 being short circuited If the above item checks out OK there are no problems with the drain sensor Turn off the power and turn it back on 1 Error Code 4109 Indoor unit fan operation error 2 Error definition and error detection method 3 Cause check method and remedy Connector CN28 has remained open
70. received Note The address and attribute that appear on the remote controller indicate the controller that detected the error 3 Cause check method and remedy Cause Check method and remedy lers such as ME remote controllers lt gt 6600 01 appears on the remote controller Unit 01 detected the error dress line 1 Twoor more of the following have the same address Outdoor units indoor units LOSSNAY units control Two or more units in the system have 01 as their ad 2 Signals are distorted by the noise on the transmission Find the unit that has the same address as that of the error source Once the unit is found correct the address Then turn off the outdoor units indoor units and LOSSNAY units keep them all turned off for at least five minutes and turn them back on When air conditioning units are operating normally despite the address overlap error Check the transmission wave shape and noise on the transmission line Refer to the service handbook that came with the outdoor unit HWE1016A 2094 GB 1 Error Code 6602 Transmission processor hardware error 2 Error definition and error detection method Although 0 was surely transmitted by the transmission processor 1 is displayed on the transmission line Note The address attribute appeared on the display on the remote controller indicates the controller where an
71. remote controller that sends or receives the signals from the remote controller Check method and remedy Check for disconnected or loose transmission lines for the indoor units or MA remote controllers Confirm that the power is supplied to the main power source and the remote controller line Confirm that MA remote controller s capacity limit is not exceeded Check the sub main setting of the MA remote controllers One of them must be set to MAIN Diagnose the remote controller described in the remote controller installation manual OK no problems with the remote controller check the wiring regulations NG Replace the MA remote controller 6832 6833 ERC Due to noise interference Go to 6 Check wave shape noise on MA remote controller line by following the instructions detailed in the Outdoor service handbook When no problems are found with items 1 through 6 replace the indoor unit board or the MA remote controller The following status can be confirmed on LED1 and 2 on the indoor unit board If LEDT is lit the main power source of the indoor unit is turned on If LED2 is lit the MA remote controller line is being powered HWE1016A 45 GB 1 2 N Error Code 6834 MA controller signal reception error Start bit detection error Error definition and error detection method Communication between the MA remote controller and the indoor unit is not done properly
72. rnal Static Pressure 100Pa Power Source 220 240V 50Hz 60Hz 700 F Hig LLLELELD Middle LOW 65 0 60 0 20 55 0 50 0 B 45 0 40 0 35 0 30 0 25 0 20 0 Approximate minimum audible limit on continuous noise 63 125 250 Octave band pressure level dB OdB 15 0 10 0 500 1k Octave band center frequencies Hz 2k 4k External Static Pressure 200Pa Power Source 220 240V 50Hz 60Hz 70 0 F ig munununun Middle OW 65 0 60 0 20 55 0 50 0 45 0 40 0 35 0 30 0 25 0 20 0 Approximate minimum audible limit on continuous noise 63 125 250 500 1k 2k Octave band center frequencies Hz Octave band pressure level dB OdB 15 0 10 0 8k NC 60 NC 50 NC 40 NC 30 NC 20 8k 7 NC 60 NC 50 NC 40 NC 30 NC 20 GB 20 External Static 250 Power Source 220 240V 50Hz 60Hz 70 0 65 0 60 0 55 0 50 0 fs High ig HEHENHENN Middle 45 0 NC 50 Octave band pressure level dB OdB HWE1016A 40 0 35 0 30 0 25 0 20 0 15 0 10 0 3 NC 40 NC 30 Approximate minimum audible limit on NC 20 continuous noise 63 125 250 500 1k
73. rrect the error elf no error is found check the cause 2 Check 2 4 on the left 1 2 3 4 Error occurrence on all IC Same causes as 1 4 described in 2 When the power supply unit for transmission lines is used and the male power supply connector is connected to the female power supply switch connector CN40 for the transmission line for central ized control Disconnection or shutdown of the power source of the power supply unit for transmission line System controller MELANS mal function Check 1 4 on the left HWE1016A 39 GB 1 Error Code 6607 No ACK error 2 Error definition and error detection method The error is detected when no acknowledgement signal is received after the transmission eg When the data is trans mitted six times in a row with 30 seconds interval the error is detected on the transmission side Note The address attribute appeared on the display on the remote controller indicates the controller which did not provide the response ACK 3 System configuration 3 System connected to the system controllers MELANS Error source address Error display Detection method Cause Check method and remedy System controller SC ME remote controller RC MA remote controller MA No acknowl edgement ACK at IC transmissionto SC 2 3 Error
74. rror occurs after the unit runs normally once the following causes may be con sidered Total capacity error 7100 Capacity code error 7101 Error in the number of connected units 7102 Address setting error 7105 Turn off the power source of LOSSNAY for 5 or more min utes and turn it on again If the error is accidental it will run normally If not check the cause 2 Check the causes of 1 5 If the cause is found correct it If no cause is found check 3 Same cause as that for indoor unit described in 3 HWE1016A 36 1 Error Code 6607 No ACK error 2 Error definition and error detection method The error is detected when no acknowledgement ACK signal is received after the transmission eg When the data is trans mitted six times in a row with 30 seconds interval the error is detected on the transmission side Note The address attribute appeared on the display on the remote controller indicates the controller which did not provide the response ACK 3 System configuration 2 Grouping of units in a system with multiple outdoor units Error source address Error display Detection method Cause Check method and remedy ME re mote con troller RC ME remote controller RC MA remote controller MA No acknowl edgement ACK at IC transmission to RC 2 3 4 5 Same causes a
75. s 1 4 for system with one outdoor unit Disconnection or short circuit of the transmission line for the outdoor unit on the termi nal block for centralized con trol line connection TB7 When multiple outdoor units are connected and the power source of one of the outdoor units has been shut off The male power supply con nector of the outdoor unit is not connected to the female power supply switch connec tor CN40 The male power supply con nectors on 2 or more outdoor units are connected to the fe male power supply switch connector CN40 for central ized control If the problem recurs after normal operation is restored the problem is caused by one of the following factors Total capacity error 7100 Capacity code setting error 7101 Error in the number of connected units 7102 Address setting error 7105 2 Turn off the power source of LOSSNAY for 5 or more min utes and turn it on again If the error is accidental it will run normally If not check the cause 2 Check the causes of 1 5 If the cause is found correct it If no cause is found check 3 Same cause as that for indoor unit described in 3 HWE1016A 2972 GB 1 Error Code 6607 No ACK error 2 Error definition and error detection method The error is detected when no acknowledgement ACK signal is received after the transmission eg When the data is trans mitted s
76. sensor side pipe temperature O 5103 1205 00 fault TH3 Pipe temperature at heatexchanger outlet TH3 OA processing unit intake air temperature 1 Detectable Temperature sensor Outside temperature only by the All 2 51408 fault TH24 Fresh type in door units Outdoor unit discharge temperature TH4 Temperature sensor Accumulator inlet tempera sie 1204 fault ture TH5 B Temperature sensor HIC circuit outlet tempera 2198 RAS fault ture TH6 i 5107 1221 EIE sensor Outside temperature TH7 Temperature sensor Heatsink temperature 5110 1214 01 faulf THHS 5201 High pressure sensor fault 63851 O 115 ACCT sensor fault O 5301 4300 117 ACCT sensor circuit fault 5305 4305 119 Open circuited IPM Loose ACCT connector 120 Faulty ACCT wiring O 5701 Loose float switch connector O 6201 Remote controller board fault nonvolatile memory 6202 Remote controller board fault clock IC error O 6600 Address overlap 6601 Polarity setting error O 6602 Transmission processor hardware error 6603 Transmission line bus busy error 6606 _ B Communication error between device and trans olololo mission processors 6607 No ACK error HWE1016A 16 GB Searched unit Prelimi Error 5 Error nary prelim z E C
77. sition of the refrigerant in the cylinder will change and become unsuitable for use Exercise special care when handling tools for use with R410A Infiltration of dust dirt or water into the refrigerant system may cause the refrigerator oil to deteriorate GB 5 1 Components and IFunctions maan GINANG GAGA 1 2 ERE 3 3 Sound pressure levels enne enne 5 4 Fan performance and corrected air fIOW Lara 8 5 Outlines and DIMENSIONS 10 6 Wiring Diag gore n 11 7 Refrigerant system diagram ciini eee A eds 13 6 Troubleshooting HERE 14 9 Disassembly Proced re eet LANA ex x BRL Kan a E Ma Ree ee 61 10 Optional Pants et 68 HWE1016A GB HWE1016A GB 1 Components and Functions 1 Indoor Unit 1 In case of rear inlet Air outlet Air inlet 2 Remote Controller PAR 21MAA Once the operation mode is selected the unit will remain in the selected mode until changed 1 Remote Controller Buttons 2a MITSUBISHI ELECTRIC DON OFF Cv gt CD Deanas OMENU OoNorr 4 5 3 JC C BACK MONITORISET 66 43 1 Set Temperature Button 7 Vane Contro
78. smission is successfully completed Setting completed will appear Press the BACK button to return to the Function setting screen Function setting M NET address 3 Function No 32 Data 2 Setting completed Return 9 To confirm the setting 1 Select Function setting from the Service menu to bring up the Function setting screen Refer to the remote controller manual for how to set the items in the service menu 2 Using the F1 through F4 buttons set the settings for the M NET address Function No and Data select Conf and press the Enter button 3 Checking will appear on the screen and when signal transmission is successfully completed the current settings values will be displayed Eunctionseiling M NET address 3 Function No 32 Data Checking Notes The actual static pressure setting and the Dip switch setting may not match if the setting was set from the remote controller To check the static pressure setting check it on the remote controller not on the dip switch HWE1016A 59 GB 6 1s 10ths digits 1 SW11 SW12 Rotary switch The use of a network remote controller PAR F27MEA requires address setting 1 Indoor control board Address settings must be made while the unit is stopped Factory setting SW12 Sw YN AD Ki KY 10 1 7 Connection No setting 1 SW14 Rotary switch This switch is used when the unit connected to an R2 series of outdoor un
79. smission to them on again If the error is IC accidental the will run normal ly If not check the cause 2 2 Disconnection or short circuit 2 Check the causes of 1 5 If of the transmission line for the cause is found correct it If the outdoor unit on the termi no cause is found check 3 nal block for centralized con trol line connection TB7 3 When multiple outdoor units 3 Check the LED displays for are connected and the pow troubleshooting on other re er source of one of the out mote controllers whether an door units has been shut off error occurs 4 The male power supply If an error is found nector of the outdoor unit is gt If an error is found check not connected to the female the check code definition and power supply switch connec correct the error tor CN40 If no error is found gt Indoor unit board failure 5 The male power supply con nectors on 2 or more outdoor units are connected to the fe male power supply switch connector CN40 for cen tralized control If an error occurs after the unit runs normally once the following causes may be considered Total capacity error 7100 Capacity code error 7101 Error in the number of connected units 7102 Address setting error 7105 HWE1016A 35 GB 1 Error Code 6607 No ACK error 2 Error definition and error detection method The error is detected when no acknowledgement ACK signa
80. ssion line System controller MELANS mal function Check 1 4 on the left HWE1016A 40 1 Error Code 6607 No ACK error 2 Error definition and error detection method The error is detected when no acknowledgement signal is received after the transmission eg When the data is trans mitted six times in a row with 30 seconds interval the error is detected on the transmission side Note The address attribute appeared on the display on the remote controller indicates the controller which did not provide the response ACK 3 System configuration 4 Errors that are not limited to a particular system Error 2 the indoor unit is keeping the memory of the previous ad dress The same symptom will appear for the registration with SC Although the address of LOSSNAY has been changed after the interlock registration of LOSSNAY is made using ME remote controller the in door unit is keeping the mem ory of the previous address Source ad Error dis Detectan Cause Check method and remedy d play method ress Address 1 Although the address of ME Delete unnecessary informa which remote controller has been tion of non existing address should not changed after the group is set which some indoor units have be existed using ME remote controller Use either of the following two methods for deletion Address deletion by ME remot
81. t detected the conditions that are listed in item 4 above brings the outdoor unit in the same refrigerant circuit to an error stop compressor operation prohibited and the outdoor unit brings all the indoor units in the same refrigerant circuit that are in any mode other than Fan or Stop to an error stop 2502 appears on the monitor of the units that came to an error stop 6 Forced stoppage of the outdoor unit Detection timing The error is detected whether the unit is in operation or stopped 7 Ending criteria for the forced stoppage of outdoor unit Power reset the indoor unit that was identified as the error source and the outdoor unit that is connected to the same refrig erant circuit Forced stoppage of the outdoor unit cannot be cancelled by stopping the unit via the remote controller Note Items 1 3 and 4 7 are detected independently from each other Note The address and attribute that appear on the remote controller are those of the indoor unit that caused the error 3 Cause check method and remedy Cause Check method and remedy 1 Drain pump failure Check for proper functioning of the drain pump 2 Drain water drainage problem Check for proper drainage Clogged drain pump Clogged drain piping 3 Adhesion of water drops to the drain sensor 1 Check for proper lead wire installation Trickling of water along the lead wire Rippling of drain water caused by filter clogging 2 Check for clogg
82. tatic pressure 1 SWA SWC 1 Indoor controller board All model Fact modes External static pressure SWA SWC ing 3 3 2 2 50Pa m 1 y 3 SWA SWC 100Pa 2 m 1 3 ju 150Pa 1 200Pa A LI Li 3m 250Pa 2 2 1 Changes that are made to the dipswitches SWA and SWC immediately become effective regardless of the unit s operation status RUN STOP or the remote controller status ON OFF N CAUTION If the static pressure setting for the duct is lower than that for the unit the fan of the unit may repeat start stop and the static pressure setting may automatically be lowered Check the static pressure setting and then match the static pressure setting for the unit to that for the duct When the static pressure setting is lowered reset the power supply of the system or change the static pressure setting and then the static pressure setting that has been automatically lowered will be reset HWE1016A 58 When using remote controller the static pressure settings can be made from the remote controller To set the external static pressure from the function selection screen on the remote controller Only PAR 30MAA Follow the instructions below and the instructions detailed in the remote controller manual for how to set the switches 1 Set the function setting No 32 Switch se
83. te controller or the indoor unit All the remote controllers are set to SUB Failure to meet wiring regulations Wire length Wire size Number of remote controllers Number of indoor units The remote controller is removed after the installation without turning the power source off Noise interference on the remote controller transmission lines Faulty circuit that is on the indoor board and performs transmission reception of the signal from the remote controller Problems with the circuit on the remote controller that sends or receives the signals from the remote controller Check method and remedy Check for disconnected or loose transmission lines for the indoor units or MA remote controllers Confirm that the power is supplied to the main power source and the remote controller line Confirm that MA remote controller s capacity limit is not exceeded Check the sub main setting of the MA remote controllers One of them must be set to MAIN Diagnose the remote controller described in the remote controller installation manual OK no problems with the remote controller check the wiring regulations NG Replace the MA remote controller 6832 6833 ERC Due to noise interference Go to 6 Check wave shape noise on MA remote controller line by following the instructions detailed in the Outdoor service handbook When no problems are found with items 1 through 6 replace the indoor unit board or the MA remote controller T
84. ted ACCT sensor Error code 5305 2 1 Turn off the breaker 1 An error is detected in less Replace the INV board Check the Be sure to turn off the than 30 seconds of startup inverter for breaker LED2 on the INV board damage lights up unloaded 2 Disconnect the connec 2 The line voltage imbalance Replace the INV board tor CNINV from the INV is 5V or greater board 3 Tum SW2 1 on the INV 3 There is no line voltage im Normal board to ON balance Reconnect the CNINV connector and en tha Weaker An error is detected after 30 set the SW2 back to its original setting seconds of startup LED2 after checking 5 Operate the indoor on the INV board lights up units and the units will stop The units will operate for approximately 30 sec onds unloaded and then stop Error code 4255 During the unloaded op eration a constant line voltage of approximately 20V will be output 49 GB HWE1016A Check items Symptoms Actions to take 3 1 Tum off the breaker 1 The units stop within 10 sec Check to see if the fan motor is locked Check for onds of startup and a posi Replace the fan motor if it is locked inverter tion detection error or an If the problem persists after replacing damage overcurrent error is detect the fan motor replace the INV board loaded ed Error code 4255 If the fan motor is not locked go to item 4 If no problems were fo
85. ter oil ether oil or alkyl benzene to coat flares and flanges Infiltration of a large amount of mineral oil may cause the re frigerator oil to deteriorate Charge the system with refrigerant in the liquid phase If gaseous refrigerant is drawn out of the cylinder first the composition of the remaining refrigerant in the cylinder will change and become unsuitable for use HWE1016A The use of other types of refrigerant that contain chloride may cause the refrigerator oil to deteriorate Use a vacuum pump with a check valve If a vacuum pump that is not equipped with a check valve is used the vacuum pump oil may flow into the refrigerant cy cle and cause the refrigerator oil to deteriorate Prepare tools for exclusive use with 410A Do not use the following tools if they have been used with the conventional refrigerant gauge manifold charging hose gas leak detec tor check valve refrigerant charge base vacuum gauge and refrigerant recovery equipment If the refrigerant or the refrigerator oil that may be left on these tools are mixed in with R410A it may cause the refrigerator oil in the new system to deteriorate Infiltration of water may cause the refrigerator oil to deteriorate Leak detectors for conventional refrigerants will not detect an R410A leak because R410A is free of chlorine Do not use a charging cylinder If a charging cylinder is used the compo
86. tting Function selection to 2 2 Set the function setting No 8 and No 10 to appropriate values according to the external static pressure Function D tti L Functi ttina N Initial Current Selection setting Initial Current External static unction setting No Setting setting No setting setting pressure setting No 32 No 8 No 10 Switch setting 1 50 1 1 Function selection 2 100Pa 2 1 150Pa 3 1 O 200Pa 2 2 250Pa 3 2 Important sure to write down the settings for all functions in the Current setting row if any of the initial settings has been changed 2 Selecting a function The steps below explain how to set the settings on the MA Smart Remote Controller To change the settings 1 Select Function setting from the Service menu to bring up the Function setting screen Refer to the remote controller manual for how to set the Function setting gt M NET address items in the service menu Function No 32 Data 2 Function E Conf Select Address 2 Using the F1 through F4 buttons set the settings for the M NET address Function No and Data select Set and press the Enter button The settings signals will be sent from the remote controller to the indoor units Function setting M NET address 3 Function No 32 Data 2 Sending data 3 Sending data will appear on the screen and when signal tran
87. und with item 4 replace the INV board If the problem persists after replacing the INV board replace the fan motor 2 Tum on the breaker 2 An overcurrent error is de a Replace the INV board tected after approximately b lf the problem persists after replacing 10 seconds of operation the INV board replace the fan motor Error code 4255 3 Operate the indoor 3 Overcurrent error due to no problems were found with items units short circuited motor 1 and 2 check for short circuited mo Error code 4255 tor wiring bjif no problems were found with item a replace the fan motor c lf the problem persists after replacing the fan motor replace the INV board 4 Aline voltage imbalance ex a lf a voltage imbalance is detected go to ceeds the greater of the fol item 4 lowing after the rotation b If no problems were found with item 4 speed has been stabilized replace the INV board 5 or 5V c If the problem persists after replacing the INV board replace the fan motor 4 Disconnect the indoor 1 Insulation resistance failure Replace the fan motor Check the motor wiring and check the of the fan motor fan motor resistance and the wire Insulation resistance of be for a ground wound resistance of the fan low 1 is considered ab fault and motor normal check the coil for 2 Broken fan motor wire Replace the fan motor problems Reference value Normal wirewound resistance is several ohms
88. ur consecutive times at an hour interval this is considered water leak age and 2500 appears on the monitor 3 Detection of water leakage is also performed while the unit is stopped 4 Preliminary water leakage is cancelled when the following conditions are met One hour after the preliminary water leakage was detected it is not detected that the drain pump goes from OFF to ON The operation mode is changed to Cool Dry The liquid pipe temperature minus the inlet temperature is 10 C 18 F or less 3 Cause check method and remedy Cause Check method and remedy 1 Drain water drainage problem Check for proper drainage Clogged drain pump Clogged drain piping Backflow of drain water from other units 2 Adhesion of water drops to the drain sensor 1 Check for proper lead wire installation Trickling of water along the lead wire Rippling of drain water caused by filter clogging 2 Check for clogged filter 3 Failure of the relay circuit for the solenoid valve Replace the relay 4 Indoor controller board failure If the above item checks out OK replace the indoor control Drain sensor circuit failure ler board HWE1016A 18 1 Error Code 2500 Drain sensor submergence Models with a float switch 2 Error definition and error detection method 1 If an immersion of the float switch in the water is detected while the unit is in any mode other than the C
89. uring the Cooing Dry mode IE a Ll 6 minutes 6 minutes T A ON Drain pump output OFF ON Float switch m 1 i 15 15 15 15 151 input iseconds 18econds m ide seconds ubmergence Of Sensor in the air Submergence of Sensor in the air pubmergence of Preliminary water leakage Water leakage E Within 1 hour period Within 1 hour period f HWE1016A 19 GB 1 Error Code 2502 Drain pump fault Models with a drain sensor 2 Error definition and error detection method 1 Make the drain sensor thermistor self heat If the temperature rise is small it is interpreted that the sensor is immersed in water This condition is considered to be a preliminary error and the unit goes into the 3 minute restart delay mode 2 If another episode of the above condition is detected during the preliminary error this is considered a drain pump error and 2502 appears on the monitor 3 This error is always detected while the drain pump is in operation 4 The following criteria are met when the criteria for the forced stoppage of outdoor unit system stoppage are met Liquid pipe temperature inlet temperature S 10 C L 18 F has been detected for 30 minutes The immersion of drain sensor is detected 10 consecutive times The conditions that are listed under items 1 through 3 above are always met before the criteria for the forced stoppage of the outdoor unit 5 The indoor unit tha

Mitsubishi Electric PEFY-P VMHS

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