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OCH748

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WIRING DIAGRAM

PUZ-HWM140VHA(-BS)

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Содержание PUZ-HWM140VHA

Страница 1: ...GERANT SYSTEM DIAGRAM 18 9 TROUBLESHOOTING 19 10 DISASSEMBLY PROCEDURE 68 Notes This manual describes service data of outdoor unit only R32 PARTS CATALOG OCB748 AIR TO WATER HEAT PUMP No OCH748 August 2020 Outdoor unit Model Name PUZ HWM140VHA PUZ HWM140YHA Salt proof model PUZ HWM140VHA BS PUZ HWM140YHA BS Service Ref PUZ HWM140VHA PUZ HWM140YHA PUZ HWM140VHA BS PUZ HWM140YHA BS ...

Страница 2: ...T R32 TYPE Model name PUZ HWM140VHA BS PUZ HWM140YHA BS CYLINDER UNIT EHPT20X MED EHPT20X VM6D EHPT20X YM9D EHPT20X YM9ED EHPT20X TM9D EHPT20X MHEDW ERPT20X MD ERPT20X VM2D ERPT20X VM6D EHPT30X MED EHPT30X YM9ED ERPT30X VM2ED HYDROBOX EHPX MED EHPX VM2D EHPX VM6D EHPX YM9D EHPX YM9ED ...

Страница 3: ... hot or cold areas in the refrigerating cycle When the repair or the inspection of the circuit needs to be done without turning off the power exercise great caution not to touch the live parts Use a vacuum pump with a reverse flow check valve Vacuum pump oil may flow back into refrigerant cycle and that can cause deterioration of refrigerant oil etc Use the following tools specifically designed fo...

Страница 4: ...refriger ant leaks before performing the work If refrigerant leaks and accumulates it may ignite or poisonous gases may be released 11 Do not install the unit in places where refrigerant may build up or places with poor ventilation such as a semi base ment Refrigerant is heavier than air and inclined to fall away from the leak source 12 The appliance shall be stored in a room without continuously ...

Страница 5: ...ents are being changed they shall be fit for the purpose and to the correct specification At all times the manufacturer s maintenance and service guidelines shall be followed If in doubt consult the manufacturer s technical department for assistance The following checks shall be applied to installations using flammable refrigerants The charge size is in accordance with the room size within which t...

Страница 6: ...e conventional procedures shall be used However for flammable refrigerants it is important that best practice is followed since flammability is a considera tion The following procedure shall be adhered to remove refrigerant purge the circuit with inert gas evacuate purge again with inert gas open the circuit by cutting or brazing The refrigerant charge shall be recovered into the correct recovery ...

Страница 7: ...ff valves in good working order Empty recovery cylinders are evacuated and if possible cooled before recovery occurs The recovery equipment shall be in good working order with a set of instructions concerning the equipment that is at hand and shall be suitable for the recovery of all appropriate refrigerants including when applicable flammable refriger ants In addition a set of calibrated weighing...

Страница 8: ...r other refrigerants can be used 2 3 PRECAUTIONS WHEN REUSING EXISTING R22 R410a REFRIGERANT TOOLS Cautions for refrigerant piping work Although BS model has been designed to be resistant to salt damage observe the following precautions to maintain the performance of the unit 1 Avoid installing the unit in a location where it will be exposed directly to seawater or sea breeze 2 If the cover panel ...

Страница 9: ...ded refrigerant B Install in a space with a depression height of 0 125 m C Create an appropriate ventilation open area Make sure that the width of the open area is 0 9 m or more and the height of the open area is 0 15 m or more However the height from the bottom of the installation space to the bottom edge of the open area should be 0 125 m or less Open area should be 75 or more opening Amin Heigh...

Страница 10: ...e t u O h s i n i f l a n r e t x E Refrigerant control Compressor Model Motor output kW Start type e r u t a r e p m e t r e t a w t e l t u o m u m i x a M s e c i v e d n o i t c e t o r P Oil Model L W r e t a e h e s a c k n a r C Heat exchanger Air Water o N e v i r d n a F n a F Fan motor output kW Airflow m3 min CFM Defrost method Noise level Heating dB Cooling dB Dimensions Width mm in De...

Страница 11: ...h s i n i f l a n r e t x E Refrigerant control Compressor Model Motor output kW Start type e r u t a r e p m e t r e t a w t e l t u o m u m i x a M s e c i v e d n o i t c e t o r P Oil Model L W r e t a e h e s a c k n a r C Heat exchanger Air Water o N e v i r d n a F n a F Fan motor output kW Airflow m3 min CFM Defrost method Noise level Heating dB Cooling dB Dimensions Width mm in Depth mm i...

Страница 12: ...or unit is insufficiently defrosted and or the heat exchanger of the indoor unit may freeze Heating 5 8 11 14 17 20 23 26 29 17 20 23 26 29 32 35 38 Return water temp Water flow rate L min Minimum return water temperature due to water quantity of system 15 to 25 L 25 to 40 L 40 to 60 L over 60 L Available range Cooling 5 7 9 11 13 15 17 17 20 23 26 29 32 35 38 Return water temp Water flow rate L m...

Страница 13: ...W7 Heating A7 W35 Total Capacity W 11 900 14 000 Input kW 3 97 3 14 Electrical circuit Outdoor unit PUZ HWM140VHA PUZ HWM140YHA Phase Hz 1 3 50 Voltage V 230 400 Current A 16 8 5 5 13 8 4 5 Refrigerant circuit Discharge pressure MPa 2 83 2 2 Suction pressure MPa 0 86 0 69 Discharge temperature ºC 84 71 Condensing temperature ºC 47 37 Suction temperature ºC 8 1 Water conditions Flow volume L min 34...

Страница 14: ...U Shaped notched holes Foundation Bolt M10 2 12 36 oval holes Foundation Bolt M10 Rear Air Intake Air Discharge Side Air Intake 28 53 370 19 417 210 600 210 330 30 Drain hole 5 33 81 219 256 133 133 133 Side Air Intake Handle for moving FOUNDATION Foundation bolt height Please secure the unit firmly with 4 foundation M10 bolts Bolts and washers must be purchased locally Service space Dimensions of...

Страница 15: ...15 OCH748 6 WIRING DIAGRAM PUZ HWM140VHA BS ...

Страница 16: ...16 OCH748 PUZ HWM140YHA BS ...

Страница 17: ...nit Notes 1 In multi phase appliances the colour of the neutral conductor of the supply cord if any shall be blue 2 Wiring size must comply with the applicable local and national codes 3 Power supply cables and the cables between Controller and Outdoor unit shall not be lighter than polychloroprene sheathed flexible cables Design 60245 IEC 57 4 Be sure to connect the cables between Controller and ...

Страница 18: ...aturation temperature from refrigerant pressure P B Power board Inverter power board LEV A Linear expansion valve A Heating Secondary LEV Cooling Primary LEV LEV B Linear expansion valve B Heating Primary LEV Cooling Secondary LEV LEV C Linear expansion valve C For HIC heating only TH32 Suction temperature thermistor For LEV control TH3 Liquid temperature thermistor Heating Evaporating temperature...

Страница 19: ...fore test run Especially items to secure safety Unit conditions at service Check code Actions to be taken for service summary The trouble is reoccurring Displayed Judge what is wrong and take a corrective action according to 9 3 SELF DIAGNOSIS ACTION TABLE Not displayed Conduct troubleshooting and ascertain the cause of the trouble The trouble is not reoccurring Logged 1 Consider the temporary def...

Страница 20: ... following items a Connection of power supply terminal block TB1 b Connection of terminal on outdoor power circuit board 3 Check connection of the connector CNDC on the outdoor controller circuit board Check connection of the connector and CNDC on the outdoor power circuit board V noise filter circuit board Y 4 Check connection of reactor DCL or ACL 5 a Check connection of outdoor noise filter cir...

Страница 21: ... unit Flow temp controller that is connected to 1 out door unit If EA is detected 4 5 Turn the power off once and on again to check Replace outdoor controller circuit board or Interface Flow temp controller board if abnormality occurs again 6 Check transmission path and remove the cause Note The descriptions above 1 6 are for EA Eb and EC Eb 6845 Miswiring of Interface unit Flow temp controller ou...

Страница 22: ...r 5 minutes Abnormal if during defrosting discharge temperature thermistor TH4 exceeds 110 C continuously for 30 minutes High comp surface temperature Abnormal if comp surface temperature TH33 exceeds 125 C or 110 C continu ously for 5 minutes In the case of high comp surface tem perature error compressor does not restart unless the thermistor TH33 becomes less than 95 C 1 Overheated compressor op...

Страница 23: ...board 2 Decrease of power supply voltage 3 Looseness disconnection or reverse of compressor wiring connection 4 Defective compressor 1 Replace outdoor power circuit board 2 Check facility of power supply 3 Correct the wiring U V W phase to compressor Refer to 9 7 TEST POINT DIAGRAM Outdoor power circuit board 4 Check compressor referring to 9 5 HOW TO CHECK THE PARTS U7 1502 Too low superheat due ...

Страница 24: ...N5 on the outdoor power circuit board CNCT on the outdoor noise filter board HWM140Y 4 Defective ACCT AC current trans on the outdoor noise filter circuit board HWM140Y 5 Defective input current detection circuit in outdoor power circuit board 6 Defective outdoor controller circuit board 1 Check the field facility for the power supply HWM140Y 2 Check the wiring between TB1 and out door noise filte...

Страница 25: ...input circuit of out door controller board 6 Defective compressor 7 Decreased water flow 8 Clogged filter of water pipe 9 Clogged plate heat exchanger 0 Locked water pump 1 Malfunction of water pump 1 Check facility of power supply 2 Correct the wiring U V W phase to compressor Refer to 9 7 TEST POINT DIAGRAM Outdoor power circuit board 3 Check outdoor fan 4 Solve short cycle 5 Replace outdoor con...

Страница 26: ...r circuit board 3 Defective communication circuit of indoor controller board 4 Noise has entered into indoor outdoor unit connecting wire 1 Check disconnection or looseness of indoor outdoor unit connecting wire of Interface unit Flow temp controller or outdoor unit 2 4 Turn the power off and on again to check Replace indoor controller board or outdoor controller circuit board if abnormality is di...

Страница 27: ...m indoor unit thermistor 1 Leakage or shortage of refrigerant 2 Malfunction of linear expansion valve 3 Refrigerant circuit is clogged with foreign objects Note Clogging occurs in the parts which become below freezing point when water enters in refrigerant circuit 4 Disconnection of thermistor holder 1 Check intake superheat Check leakage of refrigerant 2 Check linear expansion valve 3 After recov...

Страница 28: ... Remote controller display works normally and the unit performs cooling operation however the capacity cannot be fully obtained 1 Refrigerant shortage 2 Filter clogging 1 If refrigerant leaks discharge temperature rises and LEV opening increases Inspect leakage by checking the temperature and opening Check pipe connections for gas leakage 2 Clean the filter of water piping 5 Remote controller disp...

Страница 29: ...utdoor unit Water is dripping or vapour is emitted from the outdoor unit During cooling mode water may form and drip from the cool pipes and joints During heating mode water may form and drip from the heat exchanger of outdoor unit During defrosting mode water on the heat exchanger of outdoor unit evaporates and water vapour may be emitted The operation indicator does not appear in the remote cont...

Страница 30: ...nosis after turning on the main power Normal The startup diagnosis will be over in around 2 minutes Miswiring of indoor outdoor connecting wire Breaking of indoor outdoor connecting wire S3 Defective indoor controller board Defective outdoor controller circuit board Refer to Self diagnosis action table in order to solve the trouble In the case of communi cation errors the display of remote control...

Страница 31: ...outdoor unit Check if the wiring is bad Check if the fuses are blown The fuses on the outdoor controller circuit board will be blown when the indoor outdoor connecting wire short circuits Bad wiring of the outdoor controller board The fuses on the outdoor controller circuit board are blown Check if miswiring breaking or poor contact is causing this problem Indoor outdoor connecting wire is polariz...

Страница 32: ...r circuit board Replace the outdoor controller circuit board Normal Only the unit which has the refrigerant address 0 supplies power to the remote controller Set the refrigerant add ress to 0 In the case of the multiple outdoor units control recheck the refrigerant address again Defective indoor power board Replace the indoor power board Defective outdoor power circuit board Replace the outdoor po...

Страница 33: ...r poor contact of the remote controller wire Check the voltage of the remote controller wire If it is not between 10 and 16 VDC the indoor controller board must be defective The remote controller wire short circuits Check if the remote controller wire is short circuited Defective indoor controller board Replace the indoor controller board Diagnosis flow Cause Inspection method and troubleshooting ...

Страница 34: ... resistance between the terminals with a multimeter At the ambient temperature of 20 C Solenoid valve coil 4 way valve 21S4 Compressor MC Normal Abnormal Open or short Refer to the next page Fan motor MF1 1725 172 5 Ω 0 302 Ω HWM140Y HWM140V 0 188 Ω Measure the resistance between the terminals with a multimeter Winding temperature 20 C Normal Abnormal Open or short W V U Linear expansion valve LEV...

Страница 35: ...k Contact of fan motor connector CNF1 2 Power supply check Measure the voltage on the outdoor controller circuit board Remove the connectors CNF1 and CNF2 TEST POINT 1 VDC 280 380 VDC between 1 and 4 of CNF1 TEST POINT 2 VCC 15 VDC between 5 and 4 of CNF1 Is the fuse normal Is the fan motor normal Is there contact failure Is the voltage normal Replace the defective fan motor Replace the outdoor co...

Страница 36: ...t 7 465exp 4057 273 t 393 1 1 Medium temperature thermistor Thermistor Heat sink TH8 High temperature thermistors Thermistor Discharge TH4 Thermistor Comp surface TH33 0 10 20 30 40 50 20 10 0 10 20 30 40 50 Temperature C Resistance k 200 150 100 50 0 25 50 75 100 125 Temperature C Resistance k 500 400 300 200 100 0 25 50 75 100 120 Temperature C Resistance k 1 1 0 C 15 kΩ 10 C 9 6 kΩ 20 C 6 3 kΩ ...

Страница 37: ...s from to or when the valve is locked sound can be heard No sound is heard when the pulse number moves from to in case coil is burnt out or motor is locked by open phase Sound can be detected by placing the ear against the screw driver handle while putting the screw driver to the linear expansion valve LEV M 1 6 1 2 Gray Orange Red Yellow Black 3 4 5 6 Connector LEV A LEV B LEV C 12 VDC Outdoor co...

Страница 38: ...erwise pipes can bend due to stress How to attach the coil Hold the lower part of the main body shown as A firmly so that the main body does not move and attach the coil by inserting it downward into the main body Then securely attach the coil stop per to main body At this time be careful that stress is not added to lead wire and main body is not wound by lead wire If the stopper is not firmly att...

Страница 39: ... 0 15 V pulse 21S4 4 way valve 63H High pressure switch SV1 Connection for option Drain hose heater output CN4 Transmission to out door power circuit board CN4 SW6 Model select SW5 Function switch SW1 Manual defrost detect history record reset CNDM 1 2 Input of low level sound priority mode TH4 Thermistor Discharge TH7 6 Thermistor Ambient 2 Phase pipe CNDC 280 380 VDC 1 3 Outdoor power circuit bo...

Страница 40: ...ER SUPPLY Voltage of 230 VAC is input Connect to the terminal block TB1 CNAC1 CNAC2 230 VAC Connect to the outdoor controller circuit board EI E2 E3 E4 Connect to the earth TB1 TB2 POWER SUPPLY Voltage of 230 VAC is output Connect to the outdoor power circuit board TB3 TB4 ...

Страница 41: ...DC CNL Connect to the ACL4 CNAC2 230 VAC Connect to the outdoor controller circuit board CNAC CNCT Primary current Connect to the outdoor power circuit board CN5 LO1 LO2 LO3 POWER SUPPLY LO1 LO2 LO2 LO3 LO3 LO1 400 VAC input Connect to the out door power circuit board TB L1 TB L2 TB L3 LI1 LI2 LI3 NI POWER SUPPLY LI1 LI2 LI2 LI3 LI3 LI1 400 VAC input LI1 NI LI2 NI LI3 NI 230 VAC input Connect to t...

Страница 42: ...oard CN2 1 5 Transmitting signal to outdoor controller circuit board 0 5 VDC 2 5 Zero cross signal 0 5 VDC 3 4 15 VDC 6 5 15 VDC 7 5 15 VDC CN4 Connect to the outdoor controller circuit board CN4 Brief Check of POWER MODULE If they are short circuited it means that they are broken Measure the resistance in the following points connectors etc 1 Check of POWER MODULE 1 Check of DIODE circuit R P1 S ...

Страница 43: ... to the outdoor noise filter circuit board CNCT CN4 Connect to the outdoor controller circuit board CN4 CN2 Connect to the outdoor controller circuit board CN2 1 5 Power circuit board Transmitting signal to the controller board 0 5 VDC 2 5 Zero cross signal 0 5 VDC 3 4 Not used 6 5 15 VDC 7 5 15 VDC 5 1 2 6 7 TB L1 TB L2 TB L3 Connect to the outdoor converter circuit board L1 OU L2 OU L3 OU 400 VA...

Страница 44: ...A2 Connect to the ACL1 ACL2 ACL3 CN7 Connect to the outdoor power circuit board CN7 CK OU Connect to the CK capacitor L1 IN N IN Connect to the noise filter circuit board LO1 NO L1 A1 Connect to the ACL1 L1 OU L2 OU L3 OU Connect to the outdoor power circuit board TB L1 L2 L3 ...

Страница 45: ...n again 1Check if indoor outdoor connecting wire is connected correctly 2Check if noise entered into indoor outdoor connecting wire or power supply 3Check if noise entered into indoor outdoor controller board 4Re check error by turning off power and on again P 20 P 21 EA P 21 Eb P 21 EC P 26 E8 Detailed reference page P 26 E9 P 25 P 26 P 25 P 26 P 26 P 21 P 26 Ed EF EE 9 8 OUTDOOR UNIT OPERATION M...

Страница 46: ... 3 Re check error by turning off power and on again P 25 Compressor overcurrent breaking UP P 25 Abnormality of current sensor P B UH P 25 Abnormality of power module U6 P 23 5 blinking Open short of outdoor thermistors TH4 TH33 U3 1 Check if connectors TH3 TH32 TH4 TH33 and TH7 6 on outdoor controller board and connector CN6 on outdoor power board are not disconnected 2 Measure resistance value o...

Страница 47: ...s Inspection code is displayed when compressor stops due to the work of protection devices Display Contents to be inspected When power is turned on F3 F5 F9 E8 E9 EA Eb EC EE E0 E7 63L connector red is open 63H connector yellow is open 2 connectors 63H 63L are open Indoor outdoor communication error Signal receiving error Outdoor unit Indoor outdoor communication error Transmitting error Outdoor u...

Страница 48: ...rs 0 5 s 0 5 s 2 s 10 hours Compressor operating current 0 to 50 0 to 50 Note Value after the decimal point will be truncated A Compressor operating frequency 0 to 255 0 to 255 When it is 100 Hz or more hundreds digit tens digit and ones digit are displayed by turns Example When 125 Hz 0 5 s 0 5 s 2 s Hz Primary LEV opening pulse 0 to 500 Heating LEV B Cooling LEV A 0 to 500 When it is 100 pulse o...

Страница 49: ...tory 2 Alternate display of error unit number and code When no error history 0 and are displayed by turns Code display Thermo ON time 0 to 999 0 to 999 When it is 100 minutes or more the hundreds digit tens digit and ones digit are displayed by turns Example When 245 minutes 0 5 s 0 5 s 2 s Minute Test run elapsed time 0 to 120 0 to 120 When it is 100 minutes or more the hundreds digit tens digit ...

Страница 50: ...mperature TH7 40 to 90 40 to 90 When the temperature is 0 C or less and temperature are displayed by turns C Outdoor heat sink temperature TH8 40 to 200 40 to 200 When the temperature is 0 C or less and temperature are displayed by turns When the thermistor detects 100 C or more hundreds digit tens digit and ones digit are displayed by turns C Discharge superheat SHd 0 to 255 Cooling TH4 or TH33 T...

Страница 51: ...Cancellation of postponement 00 is displayed in the case of no postponement Code display Error postponement code history 3 of outdoor unit Postponement code display Blinking During postponement Lighting Cancellation of postponement 00 is displayed in the case of no postponement Code display Error history 3 Oldest Alternate display of abnormal unit number and code When no error history 0 and are di...

Страница 52: ... 200 40 to 200 When the temperature is 0 C or less and temperature are displayed by turns When the temperature is 100 C or more hundreds digit tens digit and ones digit are displayed by turns C Discharge superheat on error occurring SHd 0 to 255 Cooling TH4 or TH33 TH6 Heating TH4 or TH33 T63HS Choose higher one 0 to 255 When the temperature is 100 C or more hundreds digit tens digit and ones digi...

Страница 53: ...ting frequency control 1 Preventive control for excessive tempera ture rise of discharge temperature 2 Preventive control for excessive tempera ture rise of condensing temperature 4 Frosting preventing control 8 Preventive control for excessive tempera ture rise of radiator panel Example The following controls are activated Primary current control Preventive control for excessive temperature rise ...

Страница 54: ...dreds digit tens digit and ones digit are displayed by turns Pulse The operation mode when the second to last error occurred This setting shows the operation mode when the second to last error occurred as well as the default setting Refer to the following Mode The operating frequency when the sec ond to last error occurred 0 to 255 0 to 255 When it is 100 or more hundreds digit tens digit and ones...

Страница 55: ...63HS N n When it is 0 or less and numbers are displayed by turns C The discharge temperature TH4 when the second to last error occurred 20 to 217 20 to 217 When it is 0 or less and numbers are displayed by turns When it is 100 or more hundreds digit tens digit and ones digit are displayed by turns C The outdoor liquid pipe temperature TH3 when the second to last error occurred 39 to 88 39 to 88 Wh...

Страница 56: ...00 0 to 500 When it is 100 or more hundreds digit tens digit and ones digit are displayed by turns Pulse The operation mode when the third to last error occurred This setting shows the operation mode when the third to last error occurred as well as the default set ting Refer to the following Mode The operating frequency when the third to last error occurred 0 to 255 0 to 255 When it is 100 or more...

Страница 57: ...rns C The heat sink temperature TH8 when the third to last error occurred 40 to 200 40 to 200 When it is 0 or less and numbers are displayed by turns When it is 100 or more hundreds digit tens digit and ones digit are displayed by turns C The suction pipe temperature TH32 when the third to last error occurred 39 to 88 39 to 88 When it is 0 or less and numbers are displayed by turns C The Comp surf...

Страница 58: ... Step The return water temperature THW2 when the fourth to last error occurred 0 to 60 0 to 60 C The plate HEX liquid pipe temperature TH34 when the fourth to last error occurred 39 to 88 39 to 88 Plate HEX liquid pipe temperature TH34 Σ TH34 N n When it is 0 or less and numbers are displayed by turns C The plate HEX pipe temperature Cond Eva T63HS when the fourth to last error occurred 39 to 88 3...

Страница 59: ...to 217 20 to 217 When it is 0 or less and numbers are displayed by turns When it is 100 or more hundreds digit tens digit and ones digit are displayed by turns C The LEV A opening pulse when the fourth to last error occurred 0 to 500 0 to 500 When it is 100 or more hundreds digit tens digit and ones digit are displayed by turns Pulse The LEV B opening pulse when the fourth to last error occurred 0...

Страница 60: ...P SW1 1 on the outdoor controller board from OFF to ON 2 Manual defrost will start by the above operation 1 if these conditions written below are satisfied Heat mode setting 10 minutes have passed since compressor started operating or previous manual defrost finished Pipe temperature is less than or equal to 8 C Manual defrost will finish if certain conditions are satisfied Manual defrost can be d...

Страница 61: ...an be limited as shown below SW7 1 SW2 SW3 Energy consumption Demand function ON OFF OFF 100 ON OFF 75 ON ON 50 OFF ON 0 Stop Fig 9 9 2 A Circuit diagram example low noise mode B On site arrangement C External input adapter PAC SC36NA E X Relay D Outdoor unit control board E Max 10 m F Power supply for relay Fig 9 9 1 A C D A C D 9 9 1 Low noise mode on site modification Fig 9 9 1 1 Using the CNDM...

Страница 62: ...it Suction pipe temperature TH33 39 to 88 C 9 Outdoor unit Ambient temperature TH7 39 to 88 C 10 Outdoor unit Heatsink temperature TH8 40 to 200 C 11 12 Discharge superheat SHd 0 to 255 C 13 Sub cool SC 0 to 130 C 14 Condensing temperature T63HS 39 to 88 C 15 16 Compressor Operating frequency 0 to 255 Hz 17 Compressor Target operating frequency 0 to 255 Hz 18 Outdoor unit Fan output step 0 to 16 S...

Страница 63: ...Code 71 Outdoor unit Setting information Refer to 9 10 1 Detail Contents in Request Code 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 Outdoor unit Microprocessor version information Examples Ver 5 01 0501 Ver 91 Outdoor unit Microprocessor version information sub No Auxiliary information displayed after version information Examples Ver 5 01 A000 A000 92 93 94 95 96 97 98 99 100 Outdoor...

Страница 64: ... occurred 40 to 101 C 114 Plate HEX liquid pipe temperature TH6 when the last error occurred 39 to 88 C 115 Outdoor unit Suction pipe temperature TH33 39 to 88 C 116 Outdoor unit Ambient temperature TH7 when the last error occurred 39 to 88 C 117 Outdoor unit Heatsink temperature TH8 when the last error occurred 40 to 200 C 118 Discharge superheat SHd when the last error occurred 0 to 255 C 119 Su...

Страница 65: ... correction value by cool condensation temperature overheat prevention control 0 0 Display Correction value minus 1 0 0 2 1 1 2 9 10 1 Detail Contents in Request Code Relay output state Display Power currently supplied to compressor Compressor 4 way valve Solenoid valve 0 1 ON 2 ON 3 ON ON 4 ON 5 ON ON 6 ON ON 7 ON ON ON 8 ON A ON ON Frequency control state 2 Display Discharge temperature overheat...

Страница 66: ...ay 52C SV2 SS 0 1 2 3 4 5 6 7 ON ON ON ON ON ON ON ON ON ON ON ON Error content U9 Request code 55 Data display Error content 1 Error content 2 0 0 Error content 1 Detected Display Overvoltage Undervoltage L1 phase Power synchronizing error error open error signal error 0 1 2 3 4 5 6 7 8 9 A b C d E F Error content 2 Detected Display Converter Fo PAM error error 0 1 2 3 Compressor is warming up Ou...

Страница 67: ...play Setting information 1 Setting information 2 0 0 Setting information 1 Display Defrost mode 0 Standard 1 For high humidity Setting information 2 Display Single Heat pump 3 phase cooling only 0 Single phase Heat pump 1 Cooling only 2 3 phase Heat pump 3 Cooling only ...

Страница 68: ...connectors CNF1 and CNF2 on control ler circuit board in electrical parts box 6 Loosen the clamp for the lead wire on motor support and separator 7 Remove a nut for right handed screw of M6 to detach the propeller See Photo 2 8 Remove 4 fan motor fixing screws 5 20 to detach the fan motor See Photo 3 Note When attaching the fan motor make sure to route the cable through the hook below the fan moto...

Страница 69: ...32 Thermistor Comp surface TH33 Thermistor Plate HEX liquid TH34 High pressure switch 63H 4 way valve coil 21S4 5 Disengage the terminal cover from the hook to remove it 6 Remove the fixing screws of the 4 way valve to discon nect the compressor lead wire 7 Remove the sensor holder from the rear guard on back of the unit 8 Remove 2 electrical parts box fixing screws 4 10 and detach the electrical ...

Страница 70: ...m side of the electrical parts box and remove the bot tom side plate by sliding in the direction of the arrow B See Photo 10 and 11 6 Remove the noise filter circuit board See Photo 12 7 Remove the screw 6 and 7 and remove the plate that equips the converter circuit board See Photo 9 8 Remove the converter circuit board from the plate See Photo 11 Note When reassembling the electrical parts box ma...

Страница 71: ...he electrical parts box 3 Disconnect the lead wire from the cable strap on the left of the electrical parts box 4 Loosen the wire clamps of the separator to disconnect the lead wire 5 Pull out the thermistor Discharge TH4 from the sensor holder Removing the thermistor Comp surface TH33 5 Pull out the thermistor Comp surface TH33 from the holder of the compressor shell Photo 15 7 Removing the therm...

Страница 72: ...oil 7 Recover refrigerant 8 Remove the welded part of LEV 11 Removing the pressure switch 63H See Photo 17 and the low pressure switch 63L 1 Remove the electrical parts box Refer to procedure 4 2 Remove 3 valve bed fixing screws 4 10 2 valve and fixing screws 5 16 then remove the valve bed 3 Remove cover panel front fixing screws 2 for front 5 12 to remove the cover panel front 4 Remove 5 right si...

Страница 73: ...ger Photo 20 14 Removing the reactors ACL1 ACL2 ACL3 PUZ HWM140Y 1 Remove the service panel Refer to procedure 1 2 Remove the top panel Refer to procedure 1 3 Remove the 6 screws that fix the front panel and remove the front panel 4 Remove the 2 screws screw 8 and 9 both 4 10 that fix the separator screw 8 from the stay and screw 9 from the bottom of the separator and tilt the separator to the sid...

Страница 74: ...screws 4 10 2 valve and fixing screws 5 16 then remove the stay 5 Remove cover panel front fixing screws 2 for front 5 12 to remove the cover panel front 6 Remove 5 right side panel R fixing screws 5 12 4 rear of the unit 1 right side base and remove the side panel R 7 Recover refrigerant 8 Remove 4 welded pipes of power receiver inlet and outlet 9 Remove 2 receiver leg fixing screws 4 10 Note Rec...

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