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Fujitsu Comfort Series Service Manual
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Fujitsu Comfort Series Service Manual

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AIR TO WATER
Comfort series
SERVICE MANUAL
OUTDOOR
WOYA060KLT
WOYA080KLT
DA_CF001EF_03
2021.03.01

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Summary of Contents for Fujitsu Comfort Series

  • Page 1 AIR TO WATER Comfort series SERVICE MANUAL OUTDOOR WOYA060KLT WOYA080KLT DA_CF001EF_03 2021.03.01...
  • Page 2 Notices: • Product specifications and design are subject to change without notice for future improvement. • For further details, please check with our authorized dealer. Copyright © 2020, 2021 Fujitsu General Limited. All rights reserved.
  • Page 3 CONTENTS 1. GENERAL INFORMATION UNIT 2. TECHNICAL DATA AND PARTS LIST 3. TROUBLESHOOTING 4. FIELD WORKING...
  • Page 5 INNOVATIVE SOLUTION OF DOMESTIC HEATING 1. GENERAL INFORMATION UNIT 2020.12.15 SA_CH01_CF001EF_02...
  • Page 6 CONTENTS 1. GENERAL INFORMATION UNIT 1. Specifications....................01-1 1-1. Outdoor unit........................01-1 2. Dimensions....................01-6 2-1. Outdoor unit........................01-6...
  • Page 7 1. Specifications 1-1. Outdoor unit ¢ Nominal capacity and nominal input Hydraulic indoor unit WSYA050ML3 WSYA080ML3 Model name Outdoor unit WOYA060KLT WOYA060KLT WOYA080KLT Power supply 1 Ø 230 V ~ 50 Hz Heating capacity Nominal 3.50 4.00 5.00 -15°C/+45°C Input power Nominal 1.81 2.05...

  • Page 8: Technical Specifications

    ¢ Technical specifications Outdoor unit model name WOYA060KLT WOYA080KLT Material Steel sheet Enclosure Beige Color Approximate color of Munsell 10YR 7.5/1.0NN Dimensions 632 × 799 × 290 716 × 820 × 315 (H × W × D) Gross 692 × 940 × 375 776 ×...

  • Page 9: Product Fiche

    ¢ Product fiche Hydraulic indoor unit WSYA050ML3 WSYA080ML3 Model name Outdoor unit WOYA060KLT WOYA060KLT WOYA080KLT Temperature application °C Declared load profile — — — — — — Seasonal space heating energy efficiency class A+++ A+++ A+++ Water heating energy efficiency class —...

  • Page 10: Product Information

    — — Daily fuel consumption Not applicable fuel FUJITSU GENERAL (EURO) GmbH Contact details Fritz-Vomfelde-Straße 26-32, 40547 Düsseldorf, Germany NOTES: • Product information according to Commission Delegated Regulation (EU) 811/2013 • Product information is based on the average climate condition.

  • Page 11: Electrical Specifications

     Energy efficiency value Application: 35°C Hydraulic indoor unit WSYA050ML3 WSYA080ML3 Model name Outdoor unit WOYA060KLT WOYA060KLT WOYA080KLT Seasonal energy efficiency of heat pump for space heating Type of temperature control Outdoor sensor (included in the package) — — — Modulating room thermostat (outdoor sensor included in the package) —...
  • Page 12 2. Dimensions 2-1. Outdoor unit ¢ Model: WOYA060KLT Unit: mm 4-M10 hole Pitch of bolts for installation Top view Side view Front view Side view Airflow Drain hole Bottom view Side view (Valve part) - (01-6) - 2-1. Outdoor unit 2.
  • Page 13 ¢ Model: WOYA080KLT Unit: mm 4-M10 hole Pitch of bolts for installation Top view Side view Front view Side view Airflow Drain hole Bottom view Side view (Valve part) - (01-7) - 2-1. Outdoor unit 2. Dimensions...
  • Page 14 - (01-8) - 2-1. Outdoor unit 2. Dimensions...
  • Page 15 INNOVATIVE SOLUTION OF DOMESTIC HEATING 2. TECHNICAL DATA AND PARTS LIST 2020.04.22 SA_CH02_CF001EF_01...
  • Page 16 CONTENTS 2. TECHNICAL DATA AND PARTS LIST 1. Outdoor unit parts list.................02-1 1-1. Model: WOYA060KLT ....................02-1 1-2. Model: WOYA080KLT ....................02-5...
  • Page 17 1. Outdoor unit parts list 1-1. Model: WOYA060KLT ¢ Exterior parts and chassis - (02-1) - 1-1. Model: WOYA060KLT 1. Outdoor unit parts list...
  • Page 18 Item no. Part no. Part name Service part 9322556028 Top panel assy ♦ 9900435028 Terminal ♦ 9709683880 Main PCB ♦ 9322420039 Heat sink ♦ 9900727079 Thermistor assy ♦ 9900565060 Thermistor assy (Outdoor temp.) ♦ 9901065019 Thermistor assy (Heat exchanger) ♦ 9322570024 Switch cover assy ♦...
  • Page 19 ¢ Compressor - (02-3) - 1-1. Model: WOYA060KLT 1. Outdoor unit parts list...
  • Page 20 Item no. Part no. Part name Service part 9810633002 Compressor ♦ 9384281005 4-way valve assy ♦ 9900186029 Pressure switch ♦ 9970178115 Sensor ♦ 9970110160 Solenoid ♦ 9970173028 Expansion valve coil ♦ 9384282002 Pulse motor valve assy ♦ 9322474001 2-way valve assy ♦...
  • Page 21 1-2. Model: WOYA080KLT ¢ Exterior parts and chassis - (02-5) - 1-2. Model: WOYA080KLT 1. Outdoor unit parts list...
  • Page 22 Item no. Part no. Part name Service part 9322556073 Top panel assy ♦ 9900435028 Terminal ♦ 9709683897 Main PCB ♦ 9322421043 Heat sink ♦ 9900727116 Thermistor assy ♦ 9900565060 Thermistor assy (Outdoor temp.) ♦ 9901065019 Thermistor assy (Heat exchanger) ♦ 9322570031 Switch cover assy ♦...
  • Page 23 ¢ Compressor - (02-7) - 1-2. Model: WOYA080KLT 1. Outdoor unit parts list...
  • Page 24 Item no. Part no. Part name Service part 9810633002 Compressor ♦ 9384281005 4-way valve assy ♦ 9900186029 Pressure switch ♦ 9970178115 Sensor ♦ 9970110160 Solenoid ♦ 9970173028 Expansion valve coil ♦ 9384282002 Pulse motor valve assy ♦ 9322474001 2-way valve assy ♦...

  • Page 25: Troubleshooting

    INNOVATIVE SOLUTION OF DOMESTIC HEATING 3. TROUBLESHOOTING 2020.04.22 SA_CH03_CF001EF_01...
  • Page 26 1 ERROR DISPLAY 1-1 HYDRAULIC UNIT DISPLAY Interface card DIP SW LED2 (green) LED1 (red) figure 1 - Location of DIP switch and diodes on the hydraulic unit card. You can check the “Error LED blinks” when an error occurs. Error Error Trouble...

  • Page 27: Troubleshooting With Error Code

    2 TROUBLESHOOTING WITH ERROR CODE Indicate: Troubleshooting 1 OUTDOOR UNIT Error Method: Green 1 flash / Red 1 flash Outdoor unit : No indication Serial communication error (Serial Reverse Transfer Error) Detective details: Detective Actuators: When the hydraulic unit cannot receive the serial signal from Outdoor unit Outdoor unit Main PCB more than 2minutes after power ON, or the hydraulic unit cannot receive the serial signal more than 15 seconds during normal operation.
  • Page 28 Indicate or Display: Troubleshooting 2 HYDRAULIC UNIT Error Method: Green 1 flash / Red 1 flash Outdoor unit : No indication Serial communication error (Serial Forward Transfer Error) Detective details: Detective Actuators: When the outdoor unit cannot properly receive the serial signal from Hydraulic unit interface PCB hydraulic unit for 10 seconds or more.
  • Page 29 Troubleshooting 3 Indicate or Display: HYDRAULIC UNIT Error Method: Outdoor unit : No indication Green 2 flash / Red 3 flash Combination error Detective Actuators: Detective details: 1. The outdoor unit receives the serial signal of applied refrigerant Hydraulic unit interfase PCB information from hydraulic unit.
  • Page 30 Troubleshooting 4 Indicate or Display: OUTDOOR UNIT Error Method: Outdoor unit main PCB model Outdoor unit : No indication Green 6 flash / Red 2 flash information error Detective Actuators: Detective details: Access to EEPROM failed due to some cause after outdoor unit started. Outdoor unit Main PCB Forecast of Cause: 1.
  • Page 31 Troubleshooting 5 Indicate or Display: OUTDOOR UNIT Error Method: Green 6 flash / Red 3 flash Outdoor unit : No indication Inverter error Detective Actuators: Detective details: Outdoor unit Main PCB Error information received from Outdoor unit Main PCB Forecast of Cause : 1.
  • Page 32 Indicate or Display: Troubleshooting 6 OUTDOOR UNIT Error Method: Outdoor unit : No indication Green 6 flash / Red 4 flash PFC circuit error Detective Actuators: Detective details: When inverter output DC voltage is higher than 420V for over 3 seconds, Outdoor unit Main PCB the compressor stops.
  • Page 33 Troubleshooting 7 Indicate or Display: OUTDOOR UNIT Error Method: Outdoor unit : No indication Green 6 flash / Red 5 flash Trip terminal L error Detective Actuators: Detective details: Outdoor unit Main PCB When the signal from FO terminal of IPM is "L"(=0V) while the compressor stops.
  • Page 34 Troubleshooting 8 Indicate or Display: OUTDOOR UNIT Error Method: Green 7 flash / Red 1 flash Outdoor unit : No indication Discharge Thermistor Error Detective Actuators: Detective details: Discharge temperature thermistor Discharge temperature thermistor short or open detected Forecast of Cause : 1.
  • Page 35 Troubleshooting 9 Indicate or Display: OUTDOOR UNIT Error Method: Green 7 flash / Red 2 flash Outdoor unit : No indication Compressor Temp. Thermistor Error Detective Actuators: Detective details: Compressor temperature thermistor Compressor temperature thermistor short or open detected Forecast of Cause : 1.
  • Page 36 Troubleshooting 10 Indicate or Display: OUTDOOR UNIT Error Method: Green 7 flash / Red 3 flash Outdoor unit : No indication Heat Ex. Outlet Thermistor Error Detective Actuators: Detective details: Heat exchanger Outlet temperature Heat exchanger outlet temperature thermistor short or open detected thermistor Forecast of Cause : 1.
  • Page 37 Troubleshooting 11 Indicate or Display: OUTDOOR UNIT Error Method: Green 7 flash / Red 4 flash Outdoor unit : No indication Outdoor Thermistor Error Detective Actuators: Detective details: Outdoor temperature thermistor Outdoor temperature thermistor short or open detected Forecast of Cause : 1.
  • Page 38 Indicate or Display: Troubleshooting 12 OUTDOOR UNIT Error Method: Outdoor unit : No indication Green 7 flash / Red 8 flash Expansion valve Thermistor Error Detective Actuators: Detective details: Expansion valve temperature thermistor Expansion valve temperature thermistor short or open detected Forecast of Cause : 1.
  • Page 39 Troubleshooting 13 Indicate or Display: OUTDOOR UNIT Error Method: Green 8 flash / Red 4 flash Outdoor unit : No indication Current sensor error Detective Actuators: Detective details: When Input Current Sensor has detected 0A, while Inverter Compressor is Outdoor unit Main PCB operating at higher than 56rps, after 1minute upon starting the Compressor.
  • Page 40 Troubleshooting 14 Indicate or Display: OUTDOOR UNIT Error Method: Green 8 flash / Red 6 flash Outdoor unit : No indication Pressure switch error Pressure sensor error Detective Actuators: Detective details: High pressure switch When the power was turned on, "high pressure switch : open" was detected. Pressure sensor Pressure sensor short or open detected.
  • Page 41 Troubleshooting 15 Indicate or Display: OUTDOOR UNIT Error Method: Green 9 flash / Red 4 flash Outdoor unit : No indication Trip detection Detective details: Detective Actuators: "Protection stop by overcurrent generation after inverter compressor start Outdoor unit Main PCB processing completed'' generated consecutively 10 times.
  • Page 42 Troubleshooting 16 Indicate or Display: OUTDOOR UNIT Error Method: Compressor rotor position Outdoor unit : No indication Green 9 flash / Red 5 flash detection error Detective details: Detective Actuators: Outdoor unit Main PCB "Protection stop by "overcurrent generation at inverter compressor starting" Compressor restart"...
  • Page 43 Indicate or Display: Troubleshooting 17 OUTDOOR UNIT Error Method: Green 9 flash / Red 7 flash Outdoor unit : No indication Outdoor Unit Fan Motor Error Detective Actuators: Detective details: When outdoor fan rotation speed is less than 100rpm in 20 seconds Outdoor unit Main PCB after fan motor starts, fan motor stops.
  • Page 44 Troubleshooting 18 Indicate or Display: OUTDOOR UNIT Error Method: Green 10 flash / Red 1 flash Outdoor unit : No indication Discharge Temp. Error Detective Actuators: Detective details: °C "Protection stop by "discharge temperature during compressor Discharge temperature thermistor operation'''' generated 2 times within 24 hours. Forecast of Cause : 1.
  • Page 45 Troubleshooting 19 Indicate or Display: OUTDOOR UNIT Error Method: Green 10 flash / Red 3 flash Outdoor unit : No indication Compressor Temp. Error Detective Actuators: Detective details: °C "Protection stop by "compressor temperature during compressor Compressor temperature thermistor operation'''' generated 2 times within 24 hours. Forecast of Cause : 1.
  • Page 46 Troubleshooting 20 Indicate or Display: OUTDOOR UNIT Error Method: Green 10 flash / Red 5 flash Outdoor unit : No indication Low pressure Error Detective Actuators: Detective details: Pressure sensor "Protection stop by suction pressure 0.02MPa continued for 5 minutes" repeats 5 times within 2 hours.

  • Page 47: Troubleshooting With No Error Code

    3 TROUBLESHOOTING WITH NO ERROR CODE Forecast of Cause: Troubleshooting 21 1.Power Supply failure 2. External cause Outdoor unit - No Power 3.Electrical Components defective Check Point 1 : Check Installation Condition Isn’t the breaker down? Check loose or removed connection cable. >>If abnormal condition is found, correct it by referring to Installation Manual or Data &...
  • Page 48 Troubleshooting 22 Forecast of Cause: 1. Setting/ Connection failure 2. External cause No Operation (Power is ON) 3. Electrical Component defective Check Point 1 : Check Hydraulic unit and Outdoor unit installation condition Are these Hydraulic unit and Outdoor Unit suitable model numbers to connect? >>...
  • Page 49 Forecast of Cause: Troubleshooting 23 1. Hydraulic Unit error 2. Outdoor Unit error No Cooling / No Heating 3. Effect by Surrounding environment 4. Connection Pipe / Connection Wire failure 5. Refrigeration cycle failure Check Point 1 : Check Hydraulic Unit Does Hydraulic unit FAN run on HIGH FAN? Is Air Filter dirty? Is Heat Exchanger clogged?

  • Page 50: Service Parts Information

    4 SERVICE PARTS INFORMATION SERVICE PARTS INFORMATION 1 Compressor Diagnosis method of Compressor ( If Outdoor Unit LED displays Error, refer to Trouble shooting ) Abnormal noise Stops soon after starting up Does not start up Is there open or loose connection Check if vibration noise by Is there open or loose connection cable?
  • Page 51 SERVICE PARTS INFORMATION 2 Inverter Compressor Check Point 1 : Check Connection Check terminal connection of Compressor (loose or incorrect wiring) Terminal cover opened Main PCB T(W) R(U) (BLACK) (RED) W400 W401 W402 S(V) (WHITE) BLACK WHITE Compressor Check Point 2 : Check Winding Resistance Check winding resistance of each terminal If the resistance value is 0 or infinite, replace Compressor.
  • Page 52 SERVICE PARTS INFORMATION 3 Outdoor unit Electronic Expansion Valve ( EEV ) Check Point 1 : Check Connections Check connection of connector ( Loose connector or open cable ) EXPANSION VALVE COIL BLUE ORANGE YELLOW WHITE Check Point 2 : Check Coil of EEV Check Point 3 : Check Noise at start up Remove connector, check each winding Turn on Power and check operation noise.
  • Page 53 SERVICE PARTS INFORMATION 4 Outdoor unit fan motor Check Point 1 : Check rotation of Fan Rotate the fan by hand when operation is off. (Check if fan is caught, dropped off or locked motor) >>If Fan or Bearing is abnormal, replace it. Check Point 2 : Check resistance of Outdoor Fan Motor Refer to below.
  • Page 54 SERVICE PARTS INFORMATION 5 Thermistor Check Point : Check Thermistor resistance value Remove connector and check Thermistor resistance value. Resistance Value [ k ] Temperature [°C] Thermistor A Thermistor B Thermistor C 1013.1 95.6 224.3 531.6 50.3 115.2 292.9 27.8 62.3 168.6 16.1...
  • Page 55 SERVICE PARTS INFORMATION 6 Pressure Sensor 1. Discharge Pressure Sensor Check Point : Check Voltage from Main PCB With the connector connected to the PCB, measure the voltage between P21:3-4 of the Main PCB. Characteristics of pressure sensor PRESSURE WHITE SENSOR BLACK (HIGH)
  • Page 57 INNOVATIVE SOLUTION OF DOMESTIC HEATING 4. FIELD WORKING 2020.04.22 SA_CH04_CF001EF_01...

  • Page 58: Disassembly Process Of Outdoor Unit

    1 Disassembly Process of Outdoor Unit 1.1 WO*A060KLT and WO*A080KLT 1.1.1 Appearance 1.1.2 TOP PANEL removal screw Remove the mounting screws. Remove the TOP PANEL. - 04-01 -...
  • Page 59 1.1.3 FRONT PANEL removal screw WOYA060KLT WO*A060LFCA hook screw screw WOYA080KLT WO*A080LFCA Remove the mounting screws (8 in total). Remove the FRONT PANEL 1.1.4 VALVE COVER removal WOYA060KLT screw Remove the 3 mounting screws Remove the VALVE COVER removal WOYA080KLT screw Remove the VALVE COVER removal Remove the 3 mounting screws...
  • Page 60 1.1.5 MAIN PCB removal WOYA060KLT and WOYA080KLT screw screw screw Remove the INVERTER BOX COVER Remove the 7 mounting screws. Remove the connectors and wires. by sliding upward. Remove the 4 mounting screws. Remove the INVERTER ASSY. hook screw HEAT SINK hook hook HEAT SINK COVE...
  • Page 61 1.1.7 CABINET RIGHT ASSY removal WOYA060KLT screw screw Remove the 6 mounting screws. by sliding upward. WOYA080KLT screw screw Remove the 7 mounting screws by sliding upward. - 04-04 -...
  • Page 62 1.1.8 THERMISTOR removal HEAT EXCHANGER THERMISTOR WOYA060KLT WOYA080KLT Remove the THERMISTOR. Remove the THERMISTOR. EEV THERMISTOR Remove the THERMISTOR. OUTDOORE THERMISTOR HOLDER are integrated with the PROTECTIVE NET. Remove the PROTECTIVE NET by lifting. Remove the THERMISTOR. - 04-05 -...
  • Page 63 1.1.9 SOLENOID COIL removal 4 WAY VALVE Remove the mounting screw Remove the SOLENOID COIL 1.1.10 EEV COIL removal Remove the EEV coil by hand. 1.1.11 PRESSURE SWITCH removal Remove the connectors. - 04-06 -...
  • Page 64 1.1.12 COMPRESSOR removal Precautions for exchange of compressor. Do not allow moisture or debris to get inside refrigerant pipes during work. Procedure for compressor removal. 1 Turn off the power 2 Remove the TOP PANEL, FRONT PANEL and CABINET RIGHT ASSY. 3 Fully close the 3Way valve (gas) and 2Way valve (liquid) 4 Collect the refrigerant from the 3Way valve.
  • Page 65 Thermistor (Discharge) Remove the Thermistor (Discharge) Remove the COMP. VOLTS. (3 places) Thermistor (comp.temp.) Remove the Thermistor (comp. temp.) and Thermistor (Discharge) Range Range Cut the Suction pipe in this range. Cut the Discharge pipe in this range. Remove the COMPRESSOR. Keep their shape better.

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