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SERVICE MANUAL

CONTENTS

1. TECHNICAL CHANGES .................................. 2
2. SAFETY PRECAUTION ................................... 3
3. SPECIFICATIONS ............................................ 6
4. DATA ............................................................. 10
5. OUTLINES AND DIMENSIONS ..................... 12
6. WIRING DIAGRAM ........................................ 13
7. WIRING SPECIFICATIONS ........................... 16
8. REFRIGERANT SYSTEM DIAGRAM ............... 17
9. TROUBLESHOOTING ................................... 18
10. DISASSEMBLY PROCEDURE ...................... 54

Notes:

•

This manual describes only

service data of outdoor unit.

•

RoHS compliant products

have <G> mark on the

spec name plate.

R410A

PARTS CATALOG (OCB465)

Revision:

•

Added

PUHZ-W85VHA2R5.UK and

PUHZ-W85VHA2R5-BS.UK

in REVISED EDITION-D.

•

Some descriptions have

been modified.

•

Please void OCH465

REVISED EDITION-C.

No. OCH465

REVISED EDITION-D

November 2015

AIR TO WATER HEAT PUMP

[Model Name]

PUHZ-W85VHA2

PUHZ-W85VHA2-BS

[Service Ref.]

PUHZ-W85VHA2.UK
PUHZ-W85VHA2R1.UK

PUHZ-W85VHA2R3.UK

PUHZ-W85VHA2R4.UK

PUHZ-W85VHA2R5.UK

PUHZ-W85VHA2-BS.UK

PUHZ-W85VHA2R1-BS.UK

PUHZ-W85VHA2R3-BS.UK

PUHZ-W85VHA2R4-BS.UK

PUHZ-W85VHA2R5-BS.UK

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Содержание PUHZ-W85VHA2-BS.UK

Страница 1: ...products have G mark on the spec name plate R410A PARTS CATALOG OCB465 Revision Added PUHZ W85VHA2R5 UK and PUHZ W85VHA2R5 BS UK in REVISED EDITION D Some descriptions have been modified Please void O...

Страница 2: ...h ErP directive Lot 1 has been authorized 2 Outdoor controller board has been changed PUHZ W85VHA2R1 UK PUHZ W85VHA2R3 UK PUHZ W85VHA2R1 BS UK PUHZ W85VHA2R3 BS UK 1 Added a new function Energy Monito...

Страница 3: ...10A refrigerant Handle tools with care If dirt dust or moisture enters into refrigerant cycle that can cause deterioration of refrigerant oil or malfunction of compressor Do not use a charging cylinde...

Страница 4: ...arged from liquid phase Gravimeter Unit 3 Service tools Use the below service tools as exclusive tools for R410A refrigerant No Tool name Specifications 1 Gauge manifold Only for R410A Use the existin...

Страница 5: ...r Welder and nitrogen gas cylinder Refrigerant charging scale Vacuum gauge or thermis tor vacuum gauge and vacuum valve Charging cylinder Air purge refrigerant charge and operation check Gas leak chec...

Страница 6: ...ing A35 W7 A Power factor Heating A7 W35 m m 4 0 4 A Cooling A35 W7 m m 2 8 6 2 B A t n e r r u c x a M m m 3 9 W A e z i s r e k a e r B m m 5 2 3 H g n i s a c r e t u O m m 84 D h s i n i f l a n r...

Страница 7: ...A Cooling A35 W7 m m 2 8 6 2 B A t n e r r u c x a M m m 3 9 W A e z i s r e k a e r B m m 5 2 3 H g n i s a c r e t u O 77 1 mm D h s i n i f l a n r e t x E s e t a l p 44 l o r t n o c t n a r e g...

Страница 8: ...r r u c x a M m m 3 9 W A e z i s r e k a e r B m m 5 2 3 H g n i s a c r e t u O 77 1 mm D h s i n i f l a n r e t x E s e t a l p 44 l o r t n o c t n a r e g i r f e R Compressor Model Motor outpu...

Страница 9: ...7 0 9 0 11 0 13 0 15 0 17 0 19 0 Return water temp Applicable Models PUHZ W85VHA2 BS UK PUHZ W85VHA2R1 BS UK PUHZ W85VHA2R3 BS UK PUHZ W85VHA2R4 BS UK PUHZ W85VHA2R5 BS UK Applicable Models PUHZ W85VH...

Страница 10: ...ESSURE LEVEL dB 0 dB 0 0002 bar 63 125 250 500 1000 2000 4000 8000 APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE BAND CENTER FREQUENCIES Hz PUHZ W85VHA2 BS UK PUHZ W85VHA2R1 BS UK PUHZ W85VHA2...

Страница 11: ...81 2 16 Suction pressure MPa 0 73 0 64 Discharge temperature C 80 65 Condensing temperature C 46 37 Suction temperature C 3 1 Water conditions Flow volume L min 21 5 25 8 Outlet water temperature C 7...

Страница 12: ...ng hole 2 27 knockout See Detail Side Panel R Front cover 34 40 119 Detail ISO 228 1 G1 B 98 269 24 Service panel Handle for moving Handle for moving Terminal Connections Left Power supply wiring Righ...

Страница 13: ...E SYMBOL NAME Connection Terminal L N Phase Connection Terminal DC Voltage TABN1 N2 Connection Terminal DC Voltage TABU V W Switch Model Select Switch Model Select SW5 SW10 Relay Fuse T6 3AL250V F1 F4...

Страница 14: ...witch Model Select Switch Function Switch Model Select SW5 SW10 Relay Fuse T6 3AL250V F1 F2 F3 F4 X52 X54 X55 1 MODEL SELECT 2 SW5 1 to 3 Function Switch SW10 1 Function Switch 1 2 3 4 5 6 OFF ON SW6...

Страница 15: ...nction Switch Model Select SW5 SW10 Fuse T6 3AL250V F1 F2 F3 F4 M 1 3 1 7 3 4 1 1 1 2 1 1 7 2 CNF1 WH TRANS CNDC PK TH7 6 RD TH3 WH TH4 WH TH7 t t t t TH6 TH3 TH4 1 2 TH32 BK t TH32 1 2 TH33 YE t TH33...

Страница 16: ...rth 2 Remote controller Interface unit Flow temp controller Circuit rating Outdoor unit L N single 3 Interface unit Flow temp controller Outdoor unit S1 S2 3 Interface unit Flow temp controller Outdoo...

Страница 17: ...erature from high 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 Seco...

Страница 18: ...ntinue to operate unit for the time being if the cause is not ascertained 4There is no abnormality concerning of parts such as electrical component controller board etc Check code displayed by self di...

Страница 19: ...door power circuit board Check connection of the connector TABT or TABS Refer to 9 6 TEST POINT DIAGRAM 3 Check connection of the connector CNDC on the outdoor controller circuit board Check connectio...

Страница 20: ...face unit Flow temp controller Abnormal if the number cannot be checked automatically due to miswiring of Interface unit Flow temp controller outdoor unit connecting wire and etc after power is turned...

Страница 21: ...continuously for 5 minutes Abnormal if during defrosting discharge temperature thermistor TH4 exceeds 110 continuously for 30 minutes High comp surface temperature Abnormal if comp surface temperature...

Страница 22: ...dule Check abnormality by driving power module in case overcurrent is detected UF or UP error condition 1 Defective outdoor power circuit board 2 Decrease of power supply voltage 3 Loosens disconnecti...

Страница 23: ...outdoor noise filter board 2 Defective ACCT AC current trans on the outdoor noise filter circuit board 3 Defective input current detection circuit in outdoor power circuit board 4 Defective outdoor co...

Страница 24: ...ter pump 1 Check facility of power supply 2 Correct the wiring U V W phase to compressor Refer to 9 6 TEST POINT DIAGRAM Outdoor power circuit board 3 Check outdoor fan 4 Solve short cycle 5 Replace o...

Страница 25: ...or unit connecting wire 1 Check disconnection or looseness of Interface unit Flow temp controller outdoor unit connecting wire of Interface unit Flow temp controller or outdoor unit 2 4 Turn the power...

Страница 26: ...rmistor TH3 Liquid temperature TH32 Inlet water temperature TH6 Plate HEX Liquid temperature TH7 Ambient temperature 1 Leakage or shortage of refrigerant 2 Malfunction of linear expansion valve 3 Refr...

Страница 27: ...t 12 Check water piping 3 Check water pump 4 Check intake superheat Check leakage of refrigerant UE Abnormal pressure of pressure sensor 63HS Abnormal if pressure sensor 63HS detects 0 1 MPa or less D...

Страница 28: ...4 TH33 TH3 TH6 TH7 TH32 TH8 Abnormal Open or short Measure the resistance between the terminals with a tester At the ambient temperature of 20 Solenoid valve coil 4 way valve 21S4 Compressor MC Normal...

Страница 29: ...r circuit board Replace the outdoor controller circuit board Replace fan motor Replace the fan motor Check fan motor rotation Check fan motor rotation Is the voltage normal Is the fuse normal Is there...

Страница 30: ...constant 4150 3 Rt 17exp 4150 273 t 323 1 Thermistor R120 7 465 k 2 B constant 4057 2 Rt 7 465exp 4057 273 t 393 1 1 Medium temperature thermistor Thermistor Heat sink TH8 20 250 k 30 160 k 40 104 k 5...

Страница 31: ...Thermistor R0 15 k 2 5 B constant 3450 2 Rt 15exp 3450 273 t 273 1 0 10 20 30 40 50 20 10 0 10 20 30 40 50 Temperature Resistance k 1 0 5 2 5 5 2 5 4 5 Vout V PRESSURE MPa 3 2 1 WHT BLU BLK SENSOR 5 V...

Страница 32: ...alve 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...

Страница 33: ...ipes 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...

Страница 34: ...rd CN4 SW6 Model select SW1 Forced defrost detect history record reset TH4 Thermistor Discharge TH3 Thermistor Liquid TH7 Ambient TH6 Thermistor Plate Hex liquid CNDC 280 380 V DC Connect from out doo...

Страница 35: ...nnect to the outdoor power circuit board CN5 LO NO Voltage of 230 V AC is output Connect to the outdoor power circuit board TABS TABT Outdoor noise filter circuit board PUHZ W85VHA2 UK PUHZ W85VHA2R1...

Страница 36: ...tion of input current Connect to the outdoor noise filter circuit board CN5 CNDC 280 380 V DC 1 3 Connect to the outdoor controller circuit board TABS TABT Connect to the outdoor noise filter circuit...

Страница 37: ...trouble and Io open less than 1 1 The unit does not operate cannot be switched ON and L2 short 100 k to 1 M 1 The breaker operates open 1 1 The unit does not operate cannot be switched ON 2U9 Abnorma...

Страница 38: ...UF UH UP P6 P8 UE PE Ed Abnormal high pressure 63H operated Abnormal high discharging high comp surface temperature shortage of refrigerant Open short circuit of discharge thermistor TH4 TH33 Open sh...

Страница 39: ...e hundreds digit tens digit and ones digit are displayed by turns Example When 2450 hours 245 10 hours 0 5 s 0 5 s 2 s 1 ON 2 3 4 5 6 1 ON 2 3 4 5 6 1 ON 2 3 4 5 6 Compressor running current 0 to 50 L...

Страница 40: ...s 100 or more the hundreds digit tens digit and ones digit are displayed by turns Example When 130 0 5 s 0 5 s 2 s A Code display Code display 0 to 50 When no error history 0 and are displayed by turn...

Страница 41: ...eat sink temperature TH8 40 to 200 40 to 200 When the temperature is 0 or less and temperature are displayed by turns When the thermistor detects 100 or more hundreds digit tens digit and ones digit a...

Страница 42: ...ails No error Over voltage Under voltage Input current sensor error Abnormal power synchronous signal ACTM error Code 00 01 02 04 08 20 Code display Deferred error history 2 of outdoor unit Deferred c...

Страница 43: ...emperature TH32 when error occurred 0 to 100 0 to 100 30 1 1 ON 2 3 4 5 6 Plate HEX liquid pipe temperature TH6 when error occurred 39 to 88 39 to 88 When the temperature is 0 C or less and temperatur...

Страница 44: ...tens digit and ones digit are displayed by turns Example When 415 minutes 0 5 s 0 5 s 2 s Maximum frequency when error occurred 0 to 150 0 to 150 When it is 100 Hz or more hundreds digit tens digit a...

Страница 45: ...setting Display detail Explanation for display Unit Comp surface temperature TH33 3 to 217 VHA2 BS 52 to 221 VHA2R1 R3 R4 R5 BS 3 to 217 VHA2 BS 52 to 221 VHA2R1 R3 R4 R5 BS When the temperature is 10...

Страница 46: ...X pipe temperature TH6 Outdoor unit Outside air temperature TH7 Outdoor unit Heat sink temperature TH8 Discharge superheat SHd Sub cool SC Compressor Operating frequency Compressor Target operating fr...

Страница 47: ...ry 1 latest Outdoor unit Error postponement history 2 previous Outdoor unit Error postponement history 3 last but one Examples Ver 5 01 Auxiliary information displayed after version information Exampl...

Страница 48: ...H8 TH32 Operation mode at time of error Compressor Operating current at time of error Compressor Accumulated operating time at time of error Compressor Number of operation times at time of error Disch...

Страница 49: ...FAN C COOL DRY H HEAT d DEFROST Relay output state Display Power currently Compressor 4 way valve Solenoid valve supplied to compressor Outdoor unit Control state Request code 51 Data display State 0...

Страница 50: ...2 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...

Страница 51: ...ing 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...

Страница 52: ...LEV B opening pulse LEV B 0 1 0 0 0 1 Ambient temp TH7 1 0 0 0 1 1 Water inlet temp TH32 0 0 0 0 1 1 Requested capacity step Q STEP 1 0 1 1 1 1 Heat sink temp TH8 0 1 0 0 1 1 Comp surface temp TH33 0...

Страница 53: ...1 2 correctly SW5 4 SW10 1 2 SW7 1 Breaker size setting Only for W85VHA2R1 R3 R4 R5 SW7 Breaker size 1 2 Both for indoor unit and outdoor unit Only for outdoor unit OFF OFF 25A Default ON OFF 20A OFF...

Страница 54: ...he clamp See Photo 3 R4 model only Photo 2 Propeller Front panel Front panel fixing screws Nut Fan motor fixing screws Fan motor MF1 Photo 3 3 Removing the electrical parts box 1 Remove the service pa...

Страница 55: ...e TH4 thermistor Comp surface TH33 1 Remove the service panel See Photo 1 2 Disconnect the connectors TH3 white TH4 white and TH33 yellow on the controller circuit board 3 Loosen the clamps for the le...

Страница 56: ...ocedure 7 5 Remove the solenoid valve coil 4 way valve See Photo 9 Refer to Procedure 8 6 Recover refrigerant 7 Remove the welded part of 4 way valve Note 1 Recover refrigerant without letting it out...

Страница 57: ...Note 1 Recover refrigerant without letting it out in the air Note 2 The welded part can be removed easily by removing the right side panel Note 3 When installing the high pressure switch make sure to...

Страница 58: ...lectrical parts box See Photo 4 5 Remove the stay See Photo 10 6 Remove the side panel R 7 Recover the refrigerant 8 Remove 2 welded pipes of receiver 9 Remove 2 receiver leg fixing screws 4 10 then r...

Страница 59: ...N4 CNDC lead wire connectors from con troller circuit board C B 2 Remove LO NO CN5 lead wire connectors from noise fil ter circuit board N F 3 Remove 3 screws 4 10 for fixing the C B base and detach t...

Страница 60: ...fixing screws Nut Fan motor fixing screws Fan motor MF1 Photo 3 3 Removing the electrical parts box 1 Remove the service panel See Photo 1 2 Remove the top panel See Photo 1 3 Disconnect the indoor o...

Страница 61: ...e TH4 thermistor Comp surface TH33 1 Remove the service panel See Photo 1 2 Disconnect the connectors TH3 white TH4 white and TH33 yellow on the controller circuit board 3 Loosen the clamps for the le...

Страница 62: ...ocedure 7 5 Remove the solenoid valve coil 4 way valve See Photo 9 Refer to Procedure 8 6 Recover refrigerant 7 Remove the welded part of 4 way valve Note 1 Recover refrigerant without letting it out...

Страница 63: ...re switch Note 1 Recover refrigerant without letting it out in the air Note 2 The welded part can be removed easily by removing the right side panel Note 3 When installing the high pressure switch mak...

Страница 64: ...lectrical parts box See Photo 4 5 Remove the stay See Photo 10 6 Remove the side panel R 7 Recover the refrigerant 8 Remove 2 welded pipes of receiver 9 Remove 2 receiver leg fixing screws 4 10 then r...

Страница 65: ...N4 CNDC lead wire connectors from con troller circuit board C B 2 Remove LO NO CN5 lead wire connectors from noise fil ter circuit board N F 3 Remove 3 screws 4 10 for fixing the C B base and detach t...

Страница 66: ...EVISED EDITION C Distributed in Nov 2014 No OCH465 REVISED EDITION B Distributed in Oct 2012 No OCH465 REVISED EDITION A Distributed in Aug 2009 No OCH465 PDF 6 Made in Japan New publication effective...

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