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Fujitsu Waterstage Comfort Series Maintenance Document Download Page 40

3 1 2 

Electrical System

Outdoor Unit Overvoltage

 
Check for possible causes in the list below (this list is 

not exhaustive):
• 

Problem with the compressor

• 

Main board

• 

Faulty power relaySteps to be followed before  

performing any work on the Inverter module:

• 

First switch off the system using the circuit 

breaker at the head of the line 
• 

Remove the unit cover and then remove the 

Inverter module cover 
• 

Measure the voltage at the condenser terminals  

You should find a value of 5 Vdc or less

Inspection  of  the  IPM  (mounted  on  transistor  PCB)  (Only  for  WO*A080LFCA  and 

WO*A100LFTA models)

transistor  PCB-Capacitor  PCB  and  Transistor  PCB-

Inverter compressor  

Set  the  tester  to resistance  mode,  and  measure  the 

resistance between the following terminals : 

TM301 (P) – TM305 (U) / TM304 (V) / TM303 (W) 

TM302 (N) – TM305(U) / TM304 (V) / TM303 (W) 

Judge the results as follows : 

Terminal 

Resistance value 

Tester (+) 

Tester (-) 

P 

U 

Over 2k

Ω

 

(Including 

∞

) 

P 

V 

P 

W 

U 

P 

Over 20k

Ω

 

(Including 

∞

) 

V 

P 

W 

P 

N 

U 

N 

V 

N 

W 

U 

N 

Over 2k

Ω

 

(Including 

∞

) 

V 

N 

W 

N 

 

WO*A080LFCA 

 

WO*A100LFTA

 

Maintenance document "1792 - EN"

Split system single phase type

- 40 -

WOYA080LFCA

WOYA100LFTA

Inspection  of  the  IPM  (mounted  on  transistor  PCB)  (Only  for  WOYA080LFCA  and 

WOYA100LFTA models)

Summary of Contents for Waterstage Comfort Series

Page 1: ...ument n 1792 1 04 05 2016 Air to Water Heat Pump Fujitsu General Euro GmbH Werftstrasse 20 40549 Düsseldorf Germany Subject to modifications without notice Non contractual document Outdoor unit WOYA060LFCA WOYA080LFCA WOYA100LFTA Hydraulic unit WSYA050DG6 WSYA100DG6 WGYA050DG6 WGYA100DG6 EN EN IT NL DE ...

Page 2: ...bleshooting 43 Control and test 4 This device requires for its installation the intervention of qualified personnel with a certificate of capacity for handling refrigerants Control Settings 44 General 44 Function Table 45 Adjustment Function Details 61 Date and Time Functions 61 User Interface Functions 61 Time Program Functions heating circuit 1 2 DHW cooling 62 Heating Circuit 1 2 Functions 63 C...

Page 3: ... removal 98 SOLENOID COIL removal 99 EEV COIL removal 99 PRESSURE SENSOR removal 99 COMPRESSOR removal 100 WO A100LFTA 102 Appearance 102 SERVICE PANEL removal 102 TOP PANEL removal 102 VALVE COVER removal 103 MAIN PCB and POWER PCB removal 103 TRANSISTOR PCB and ACTPM PCB removal 104 FAN MOTOR removal 105 RIGHT PANEL removal 105 THERMISTOR removal 106 SOLENOID COIL removal 107 COMPRESSOR removal ...

Page 4: ...vided the outdoor temperature is less than the setting on 2884 or 3700 2 from the beginning LINE SENSOR INPUT OUTPUT WATERSTAGE 7700 QX Relay test 7710 UX1 Output test 7712 UX1 PWM Signal 7722 DO2 Cooling mode 7723 D3 Heat pump 7724 UX3 Output test Inverter command 7725 UX3 Voltage signal Ux3 7820 BX1 Sensor temp HP flow temperature 7821 BX2 Sensor temp HP return temperature 7822 BX3 Sensor temp D...

Page 5: ...t Heat pump op shows whether or not the heat pump operates despite the fault No Designation of error Location connection Reset HP op Manual Auto 10 Outdoor sensor X86 No No Yes 33 Flow sensor HP X70 No No Yes 44 Return sensor HP X70 No No Yes 50 DHW sensor 1 X84 No No Yes 60 Room sensor 1 No No Yes 65 Room sensor 2 No No Yes 105 Maintenance message No No Yes 121 Flow temp HC1 too low No No Yes 122...

Page 6: ...e operation 6 Flashs 8 Flashs Outdoor unit magnetic relay error 7 Flashes 1 Flash Discharge thermistor error 7 Flashes 2 Flashes Compressor thermistor error 7 Flashes 3 Flashes Heat exchange thermistor outlet intermediate error 7 Flashes 4 Flashes Outdoor thermistor error 7 Flashs 7 Flashs Outdoor unit heat sink temp thermistor error 7 Flashes 8 Flashes Expansion valve thermistor error 8 Flashes 4...

Page 7: ... relayed to create equivalent wiring In all cases please refer to the instruction manuals for the external components load shedder power meters to create the wiring Option The connection of terminal 3 of the remote control is not mandatory lighting of the remote control Faults external to the heat pump Any safety device e g thermostat pressure switch wired to input Ex3 E20 allows external problems...

Page 8: ...between terminals 1 and 3 of the outdoor terminal block The voltage must fluctuate between AC 70 V and AC 130 V If it is abnormal Check outdoor unit fan motor Parts Information 5 If outdoor fan motor is abnormal replace Outdoor unit fan motor and main PCB If outdoor fan motor is normal replace main PCB OK 1 2 Check for external causes Check the system s overall isolation Check for any equipment ge...

Page 9: ...M is abnormal replace it If the parts are normal replace Main PCB voltage must fluctuate between AC 70 V and AC 130 V It it is abnormal check the parts as follows Outdoor unit fan motor Parts information 5 Active filter module Parts information 6 Transistor PCB IPM Parts information 7 Filter PCB Check the wire of CN110 OK 1 2 Check for external causes Check the system s overall isolation Check for...

Page 10: ... block The If the parts are normal replace Main PCB voltage must fluctuate between AC 70 V and AC 130 V OK 1 2 Check for external causes Check the system s overall isolation Check for any equipment generating harmonic waves which interfere with the communication between the hydraulic unit and the outdoor unit Neon light bulb or any electric equipment which causes harmonic waves 2 Check the connect...

Page 11: ... and Heat pump regulator PCB See if the connector has been disconnected See if the connection is correct Check for any damage on the sensor cable After solving the misconnection problem switch the heat pump back on 2 Check resistance value 3 pin of CN22 M 10Ω OK 3 Replace interface PCB If check point 1 and 2 do not improve the symptom replace Interface PCB OK Maintenance document 1792 EN 11 Split ...

Page 12: ...fter solving the misconnection problem switch the heat pump back on 2 Remove the sensor and check its resistance value Check the resistance value Temperature C 0 5 10 15 20 25 30 35 40 45 50 Resistance k 176 134 103 80 3 62 9 49 7 39 6 31 7 25 6 20 8 17 1 If the thermistor is faulty replace it OK 3 Check the electronic board voltage Make sure circuit diagram of hydraulic unit and check terminal vo...

Page 13: ...ue Temperature C 0 5 10 15 20 30 40 50 Resistance kΩ 168 130 101 79 63 40 26 3 17 8 Temperature C 60 70 80 90 100 120 Resistance kΩ 12 3 8 7 6 3 4 6 3 4 2 If the thermistor is faulty replace it OK OK WO A060LFCA WO A080LFCA WO A100LFTA 3 Check the electronic board voltage Make sure circuit diagram of outdoor unit and check terminal voltage at thermistor DC5 0V EXP VALVE DISCHARGE PIPE OUTDOOR TEMP...

Page 14: ...ck the resistance value Temperature C 20 10 5 0 5 10 15 20 30 40 50 60 70 Resistance kΩ 115 62 3 46 6 35 2 26 9 20 7 16 1 12 6 7 97 5 18 3 45 2 36 1 65 If the thermistor is faulty replace it 3 Check the electronic board voltage Make sure circuit diagram of outdoor unit and check terminal voltage at thermistor DC5 0V WO A060LFCA WO A080LFCA WO A100LFTA If there is no voltage replace Main PCB EXP VA...

Page 15: ... OK OK 3 Check the electronic board voltage Make sure circuit diagram of outdoor unit and check terminal voltage at thermistor DC5 0V WO A060LFCA WO A080LFCA WO A100LFTA If there is no voltage replace Main PCB EXP VALVE PIPE DISCHARGE PIPE OUTDOOR TEMP COMPRESSOR TEMP COMPRESSOR TEMP EXP VALVE OUTDOOR TEMP DISCHARGE PIPE PIPE EXP VALVE COMPRESSOR TEMP OUTDOOR TEMP PIPE DISCHARGE PIPE Clear 9 Outdo...

Page 16: ... Temperature C 0 5 10 15 20 30 40 50 Resistance kΩ 168 130 101 79 63 40 26 3 17 8 Temperature C 60 70 80 90 100 120 Resistance kΩ 12 3 8 7 6 3 4 6 3 4 2 If the thermistor is faulty replace it OK OK 3 Check the electronic board voltage Make sure circuit diagram of outdoor unit and check terminal voltage at thermistor DC5 0V WO A060LFCA WO A080LFCA WO A100LFTA If there is no voltage replace Main PCB...

Page 17: ...ue Temperature C 0 5 10 15 20 30 40 50 Resistance kΩ 168 130 101 79 63 40 26 3 17 8 Temperature C 60 70 80 90 100 120 Resistance kΩ 12 3 8 7 6 3 4 6 3 4 2 If the thermistor is faulty replace it OK OK 3 Check the electronic board voltage Make sure circuit diagram of outdoor unit and check terminal voltage at thermistor DC5 0V WO A060LFCA WO A080LFCA WO A100LFTA If there is no voltage replace Main P...

Page 18: ...ng the removed connector or mis wiring reset the power OK 3 Check Outdoor Fan Check Outdoor Fan Motor Refer to Clear 18 If the Fan Motor is failure replace it OK 4 Check transistor PCB IPM only for 080 and 100 model Check IPM PARTS INFORMATION 7 If it is abnormal replace compressor PCB OK 2 Check Outdoor Heat Exchanger Is there any obstructing the air flow route Is there any clogging of outdoor un...

Page 19: ... connector is removed Check erroneous connection Upon correcting the removed connector or mis wiring reset the power 3 Replace main PCB If checkpoints 1 and 2 do not improve the symptom change main PCB No Ok Instant drop Check if there is a large load electric apparatus in the same circuit Momentary power failure Check if there is a defective contact or leak current in the power supply circuit Noi...

Page 20: ...connections of around the compressor components Check IPM PARTS INFORMATION 7 If IPM is abnormal replace transistor PCB 3 Check Compressor 4 Replace the electronic board Refer to Service parts information 2 Inverter compressor If it is abnormal replace compressor If steps 1 3 do not solve the problem replace Inverter PCB OK OK Check if the terminal connection is loose Check if connector is removed...

Page 21: ...m 2 Check the ambient temperature around the motor Check excessively high temperature around the fan Wait until the temperature comes down again and switch the fan back on OK OK 3 Check the main board output voltage On the outdoor unit check the output voltage DC of the following connectors Terminals Voltage 1 red 3 black 240 400V for 060LFCA and 080LFCA 300 400V for 100LFTA 4 white 3 black 15 1 5...

Page 22: ...if the terminal connection is loose Check if connector is removed Check if connector is erroneous connection Check if cable is open Upon correcting the removed connector or mis wiring reset the power 2 Replace Active Filter Module and Main PCB only 080 and 100 If Check Point 1 does not improve the symptom replace Main PCB and Active Filter Module and execute the checkoperation again OK Maintenance...

Page 23: ...EEV and Strainer Are EEV and Strainer open If EEV or Strainer is defective replace it OK Heating mode 3 Check if gas leak or less gas Measure gas pressure if there is a leak correct it If recharging refrigerant make sure to perform vacuuming and recharge the specified amount OK OK 4 Check Discharge Pipe Thermistor Is it on the holder Is there a cable pinched Check characteristics of thermistor Ref...

Page 24: ...rrect replace Presure Sensor OK 1 Check connection of the Pressure Sensor Check if the terminal connection is loose Check if connector is removed Check if connector is erroneous connection Check if cable is open Upon correcting the removed connector or mis wiring reset the power Voltage V Pressure MPa 2 Check output voltage of Main PCB Check voltage of Main PCB Measure at Main PCB side connector 1...

Page 25: ...EEV or Strainer is defective replace it OK Heating mode 3 Check if gas leak or less gas Measure gas pressure if there is a leak correct it If recharging refrigerant make sure to perform vacuuming and recharge the specified amount OK OK 4 Check compressor temperature Thermistor Is it on the holder Is there a cable pinched Check characteristics of thermistor Refer to Clear 11 If defective replace th...

Page 26: ...k if the terminal connection is loose Check if connector is removed Check if connector is erroneous connection Check if cable is open Upon correcting the removed connector or mis wiring reset the power OK 4 Replace Pressure Sensor If Check Point 1 3 do not improve the symptom replace Pressure Sensor 2 Check output voltage of Main PCB Check voltage of Main PCB Measure at Main PCB side connector 1 p...

Page 27: ...Is the error still displayed YES NO 1 2 Check for external causes Check for any equipment generating harmonic waves which interfere with the communication between the Main PCB and the Interface PCB Neon light bulb or any electric equipment which causes harmonic waves 2 Check the connections Check the connection between the Main PCB and the Interface PCB If there is an abnormal condition correct it...

Page 28: ...nt leaks Check for any equipment generating electromagnetic waves which interfere with the communication between the Hydraulic Unit and the outdoor unit 3 Check the electrical components If all of these checks are unsuccessful replace Interface PCB OK OK OK Check that a voltage between AC 198 and AC 264 V exists between terminals 1 and 2 on the Hydraulic Unit terminal block NO Check Interface PCB ...

Page 29: ...lectromagnetic waves which interfere with the communication between the Hydraulic Unit and the outdoor unit OK OK OK 1 Check the installation Is the circuit breaker cut off Check the wiring NO If all of these checks are unsuccessful replace Main PCB YES YES Check that a voltage between AC 198 and AC 264 V exists at outdoor terminal L N Check Fuse in Main PCB If fuse is open check if the wiring bet...

Page 30: ... clogged Are the valves open 4 Check the configuration of the room Is the heat pump power suited to the need 5 Inspect the Hydraulic Unit and outdoor unit installation Check the refrigeration connections length diameter 6 Inspect the refrigeration circuit See if the dehydrator is clogged there should be no temperature variation between the dehydrator input and output in normal operating conditions...

Page 31: ... unit stable Is the protection screen properly mounted Is the propeller broken or distorted Has the propeller screw been lost Is any object blocking the propeller rotation OK Check for any vibration noise caused by a bolt Check for any sound of contact with a pipe OK Is the compressor locked OK Maintenance document 1792 EN 31 Split system single phase type ...

Page 32: ...2 3 46 6 35 2 26 9 20 7 16 1 12 6 7 97 Temperature C 40 50 60 70 Resistance value kΩ 5 18 3 45 2 36 1 65 Heat Exchanger Condensing sensor Temperature C 0 5 10 15 20 25 30 35 40 45 50 Resistance value kΩ 176 134 103 80 3 62 9 49 7 39 6 31 7 25 6 20 8 17 1 Outdoor sensor Temperature C 20 15 10 5 0 5 10 15 20 Resistance value kΩ 7 60 5 85 4 60 3 60 2 85 2 30 1 85 1 50 1 20 Temperature C 25 30 35 40 4...

Page 33: ...Check if refrigerant is leakin Recharge refrigerant Check if stainer is clogged Parts information 3 Check inverter PCB connection of compressor and winding resistance refer to the next page If there is no failure the defected of compressor is considered Compression part broken or valve defective Replace compressor Check if vibration noise by loose bolt or contact noise of piping is happening Defec...

Page 34: ...d Orange Red Blue Red If resistance value is abnormal replace EEV Check point 3 Check voltage from main PCB Remove connector and check voltage DC12V If it does not appear replace Main PCB Check point 4 Check noise at start up Turn on power and check operation noise If an abnormal noise does not show replace Main PCB Check point 5 Check opening and closing operation of valve When valve is closed it...

Page 35: ...ipe Out Pipe In Pipe Out Check point 1 Check connections Check connection of connector Loose connector or open cable WO A060LFCA WO A080LFCA WO A100LFTA Check point 2 Check solenoid coil Remove connector and check if coil is open normal resistance value of each coil 1495 7 If resistance value is abnormal replace solenoid coil Check point 3 Check voltage from main PCB Remove connector and check the...

Page 36: ... Terminal Resistance value Tester Tester IN IN 360kΩ 20 IN N 0Ω P IN 720kΩ 20 L1 L2 1 40MΩ 2 28MΩ Ref value 1 Ref value 2 P N 360kΩ 20 L1 L2 Control Box Ω L2 N 1 69MΩ 1 88MΩ Ref value 1 Ref value 2 Check the diode Terminal Resistance value Tester Tester L2 P 1 32MΩ 1 50MΩ Ref value 1 Ref value 2 P L2 1 40MΩ 1 51MΩ Ref value 1 Ref value 2 Ref value 1 Specifications for multimeter Manufacturer HIOKI...

Page 37: ...TM303 W 3 Judge the result of 2 as follows Terminal Resistance value Tester Tester P U Over 2kΩ including Ω P V P W U P Over 20kΩ including Ω V P W P N U N V N W U N Over 2kΩ including Ω V N W N WO A080LFCA WO A100LFTA Check point 2 4 Set the tester to the diode mode and measure the voltage value between the following terminals 5 Judge the result of 4 as follows Terminal Resistance value Tester Te...

Page 38: ...reading at 1m in open field on a reflecting plane When the outdoor temperature continuously exceeds 35 C DHW heating is done by the water heater heating element Maintenance document 1792 EN Split system single phase type 38 HEAT PUMP WOYA060LFCA WOYA080LFCA WOYA100LFTA WSYA050DG6 WGYA050DG6 WSYA100DG6 WGYA100DG6 Min max OT in heat mode C 20 35 Heating floor maximum water temperature C 45 LT radiat...

Page 39: ...rmine which heating circuit is perforated Pipe leak Pipe is faulty Service station Leak in heating circuit Floor again Installer 4 Clogged heating circuit crushed pipe Very high difference between floor flow return temp On collector check heating circuit flow return temps infrared thermometer Clear with test pump Service station If no clogged heating circuit check for crushing with infrared camera...

Page 40: ...ion of the IPM mounted on transistor PCB Only for WO A080LFCA and WO A100LFTA models transistor PCB Capacitor PCB and Transistor PCB Inverter compressor Set the tester to resistance mode and measure the resistance between the following terminals TM301 P TM305 U TM304 V TM303 W TM302 N TM305 U TM304 V TM303 W Judge the results as follows Terminal Resistance value Tester Tester P U Over 2kΩ Includin...

Page 41: ... sending data to outdoor unit Compressor running Operating pressure OK 4 way valve switching Expansion correct Inspect refrigeration lines clogging Hydraulic unit electronic system faulty Inspect PCB Charge to balance Problem solved Servicing complete Valve coil faulty Change expansion valve Change coil Change 4 way valve after testing No Yes No Yes Yes No No No No Yes Yes No Yes Yes Maintenance d...

Page 42: ...le Outdoor unit defrosting is controlled by the exchanger sensor and the controller board If the defrost sensor is not iced up while the rest of the exchanger is then Move the sensor between the exchanger blades to a place where the exchanger is iced up If all these points have been checked replace the outdoor controller board Note Outdoor unit defrosting is controlled by the exchanger sensor and ...

Page 43: ...sting of installations with a refrigerant charge higher than 2kg Leak testing is to be performed with an approved detector that has been appropriately calibrated 3 4 Troubleshooting The heat pump is not operating at all no illuminated indicator Are the power supply voltage and frequency normal Is the connection to mains correct Have all the connectors been properly inserted Are the fuses on the ou...

Page 44: ... an undesirable way A testing period should be conducted before the permanent settings of the heat pump are confirmed This may require a number of changes to be made by the installer There are 4 access levels U end user level I commissioning level installer start up S engineer level specialist C OEM level manufacturer not available Maintenance document 1792 EN Split system single phase type 44 ...

Page 45: ...mation 29 I Temperature units Pressure units C F bar psi C bar 44 I Operation HC2 Jointly with HC1 Independently Jointly with HC1 46 I Operation HC3 P Jointly with HC1 Independently Jointly with HC1 70 S Display software version Time program heating cooling circuit 1 500 U Pre selection Day Week Mon Sun Mon Fri Sat Sun Monday Tuesday Mon Sun 501 U 1st phase On start 00 00 10 min 6 00 502 U 1st pha...

Page 46: ...n 05 00 563 U 2nd phase On start 00 00 10 min 14 30 564 U 2nd phase Off end 00 00 10 min 17 00 565 U 3rd phase On start 00 00 10 min 566 U 3rd phase Off end 00 00 10 min 576 U Default values No Yes No Yes OK The default values memorised in the regulator replace and cancel the customised heating programs Your customised settings are therefore lost Holidays heating circuit 1 For the Holiday program ...

Page 47: ...unction as required by ground heating 750 S Room influence 1 100 1 50 If the installation is fitted with a room thermostat This function enables you to choose the ambient temperature s influence on the setting If no value is entered the setting is made based on the temperature control If the parameter is set at 100 the setting is only based on the ambient temperature 760 S Room temperature limitat...

Page 48: ...anually if line 850 manual 0 95 C 1 C 25 C This function enables you to set the custom concrete slab drying temperature This temperature remains fixed The concrete slab drying programme stops automatically after running for 25 days 856 I Floor curing day current 0 32 857 I Floor curing day completed 0 32 900 S Operating mode changeover None Protection mode Reduced Comfort Automatic 1 Reduced Opera...

Page 49: ...ating as an economy measure During summer mode the display shows Eco This function is only active in automatic mode 1040 I Flow temp setpoint min 8 70 C 1 C 17 C with dynamic radiator adjust from 30 to 35 C 1041 I Flow temp setpoint max 8 70 C 1 C 55 C Floor heating system 50 C Radiators 65 C Important Note Maximum temperature limitation is not a safety function as required by ground heating 1050 ...

Page 50: ...mode Protection Automatic Reduced Comfort Protection 1202 U Comfort cooling setpoint 17 40 C 0 5 C 24 C 1203 U Reduced setpoint 5 40 C 26 C 1208 I Flow temp setp at OT 25 C 6 35 C 0 5 C 20 C 1209 I Flow temp setp at OT 35 C 6 35 C 0 5 C 16 C 1212 I Cooling limit at OT 8 35 C 0 5 C 24 C 1213 S Lock time at end of heating cooling 8 100 1 h 24 h 1218 S Summer comp start at OT 20 50 C 1 C 26 C 1219 S ...

Page 51: ...sed to operate during the comfort period or off peak Connect the Power Provider contact to input EX2 In the case of a day night contract the electric back ups for the DHW tank are subject to the power supplier s tariffs Switching on the electric back up for the DHW tank is only authorised during off peak hours 1640 I Legionella function Off Periodically depending line setting 1641 Fixed weekday de...

Page 52: ...unt of gas brought in Cumulation of total consumed electrical energy Electrical energy consumed Electrical energy absorbed by outdoor unit electric energy absorbed by the heating electrical backup and or DHW electrical backup if installed 3124 U Energy brought in heating 1 N 1 3125 U Energy brought in DHW 1 3126 U Energy brought in cooling 1 3131 U Energy brought in heating 2 N 2 3132 U Energy bro...

Page 53: ...P and the boiler are put into operation The HP will stop when the primary return temperature is over 55 C DHW Substitute If the outdoor temperature is above 2 C the operation of the HP when DHW request last 5 minutes at least The HP operating time can be extended depending on the outdoor temperature The boiler will activate then 3700 S Release below outdoor temperature 50 50 C 1 C 2 C 3701 S Relea...

Page 54: ...hangeover zone 1 5 Op mode changeover zone 2 6 Op mode changeover zone 3 8 Error alarm message 9 Consumer request VK1 10 Consumer request VK2 11 Release swi pool source heat 13 Release swi pool solar 14 Operating level DHW 15 Operating level HC1 16 Operating level HC2 17 Operating level HC3 18 Room thermostat HC1 19 Room thermostat HC2 20 Room thermostat HC3 21 DHW flow switch 24 Pulse count 26 De...

Page 55: ...lity lock E6 2 Low tariff E5 4 Overload source E14 5 Pressure switch source E26 6 Flow switch source E15 7 Flow switch consumers E24 8 Manual defrost E17 9 Common fault HP E20 10 Fault soft starter E25 12 Low pressure switch E9 13 High pressure switch E10 14 Overload compressor 1 E11 15 Error alarm message 16 Mains supervision E21 18 Pressure diff defrost E28 19 Pres sw source int circ E29 20 Flow...

Page 56: ...nsists of instructing the regulator s relays one by one and checking their outputs This enables you to check that the relays are working and that the cabling is correct Check that each appliance in the installation is operating correctly 0 No test 1 Everything is on STOP 2 Relay output QX1 heat pump CC1 if 1 circuit or heat pump CC2 if 2 circuits 3 Relay output QX2 Electrical back up 1st stage or ...

Page 57: ...022 I State supplementary source 8025 I State cooling circuit 2 Generator diagnosis 8400 I Compressor 1 Off On Off 8402 I Electrical resistance flow 1 Off On Off 8403 I Electrical resistance flow 2 Off On Off 8406 I Condenser pump Off On Off 8407 S Speed condenser pump 0 100 8410 U Return temp HP 0 140 C Setpoint flow HP 8412 U Flow temp HP 0 140 C Setpoint flow HP 8413 U Compressor modulation 0 1...

Page 58: ...lve HC1 closed Off On Off 8740 U Room temperature 1 0 50 C Room setting 1 20 C 8743 U Flow temperature 1 0 140 C Flow temperature setpoint 1 8749 I Room thermostat 1 No demand Demand No demand 8756 U Cooling flow temperature 1 0 140 C Cooling flow temperature setpoint 1 8820 I DHW pump Off On Off 8821 I El imm heater DHW Off On Off 8830 U DHW domestic hot water temperature 0 140 C DHW temperature ...

Page 59: ...ment Basic setting 9031 I Relay output QX1 Off On On 9032 I Relay output QX2 Off On On 9033 I Relay output QX3 Off On On 9034 I Relay output QX4 Off On Off 9035 I Relay output QX5 Off On Off Maintenance document 1792 EN 59 Split system single phase type ...

Page 60: ... Maintenance document 1792 EN Split system single phase type 60 ...

Page 61: ... temp comfort setpoint knob occupancy key Programming lock 27 If the programming lock is activated the setting values are displayed but may no longer be changed Temporary Suspension of Programming The programming lock can be temporarily deactivated at programming level To do this simultaneously press the OK and ESC keys for at least 3 seconds The temporary suspension of the programming lock remain...

Page 62: ...rably shorter Standard Program Line N Programming line 516 536 576 616 Default values No Yes All time programs can be reset to factory settings Each time program has its own command line for this reset action In this case individual settings will be lost Holidays Line N Programming line HC1 HC2 642 652 Period start Day Month 643 653 Period end Day Month 648 658 Operating level The holiday program ...

Page 63: ...uced setpoint 714 1014 Frost protection setpoint 716 1016 Comfort setpoint maximum Room Temperature Room temperature can be set according to different setpoint values Depending on the selected mode these setpoints are activated and provide different temperature levels in the rooms The ranges of configurable setpoints are defined by their interdependencies as shown in the graph below Frost protecti...

Page 64: ...ncrease the setting The flow temperature is increased mainly when the outdoor temperatures are low Decrease the setting The flow temperature is lowered mainly when the outdoor temperatures are low Warning The heating curve is adjusted in relation to a room temperature setpoint of 20 C If the room temperature setpoint is modified the flow temperature setpoint is automatically recomputed This will n...

Page 65: ...Control types When using a room temperature sensor there are 3 different types of control to choose from SETTING CONTROL TYPE Simple control according to outdoor conditions 1 99 Control according to outdoor conditions with room influence 100 Control according to room temperature only Requires the connection of an outdoor sensor Simple control according to outdoor conditions The flow temperature is...

Page 66: ...int During the time the Room temperature limitation function is active no heat request is sent to the producer Quick setback During quick setback the heating circuit pump is deactivated and in the case of mixing circuits the mixing valve is fully closed When using a room sensor the function keeps the heating off until the room temperature drops to the level of the Reduced or Frost protection setpo...

Page 67: ...e g low energy homes In that case when outdoor temperatures are low adjusting the temperature would be too long Increasing the reduced setpoint prevents excessive cooling of the rooms in order to shorten the temperature adjustment period when changing over to the comfort setpoint Comfort setpoint 710 Reduced setpoint 712 Begin increase 800 End increase 801 Averaged OT Mixing Valve Control Line N P...

Page 68: ...uately made hydraulics electricity settings Otherwise the floors to be dried may be damaged The function may be prematurely interrupted by setting it to Off The maximum flow temperature limitation remains active Floor curing setpoint manually The flow temperature setpoint for the Manual controlled floor drying function can be adjusted separately for each heating circuit Floor curing day current Di...

Page 69: ...t frost protection is continuously activated protection mode and is not adjustable Heating circuit frost protection in heating mode If the flow temperature is below 5 C the controller initiates the production of heat and starts the heating pumps regardless of the current heating mode If the flow temperature rises again above 7 C the controller waits another 5 minutes and then stops the production ...

Page 70: ...y the time program command line 907 the holiday program the occupancy key or according to the need Comfort cooling setpoint Line N PROGRAMMING LINE 902 Comfort cooling setpoint In cooling mode the room temperature control follows the comfort setpoint adjusted under this setting The cooling comfort setpoint can be displayed with a knob on the room unit In summer the comfort setpoint is gradually in...

Page 71: ...nt cooling can be viewed in the Info section Summer compensation start at OT Summer compensation starts to be active from the outdoor temperature defined here If the outdoor temperature continues to rise the comfort setpoint will be gradually increased Summer compensation end at OT At this outdoor temperature the summer compensation reaches its peak efficiency 920 If the outdoor temperature contin...

Page 72: ...owing requirements A room sensor must imperatively be connected The room influence parameter must be set between 1 and 99 The reference room where the room sensor is installed must not contain adjusted thermostatic valves Any thermostatic valves present in the rooms must be fully open Control according to room temperature only The flow temperature is adjusted according to the room temperature setp...

Page 73: ...se settings are not chosen properly the heat pump may stop automatically due to the flow temperature being too low A safety mechanism is triggered at 6 C to protect the exchanger from freezing Actuator running time For the 3 position servomotor used it is possible to adjust the travel time With a 2 position servomotor the adjusted travel time is inoperative Mixing valve in heating mode Determines ...

Page 74: ...5 C Full charging will occur during the night at the nominal temperature DHW reduced setpoint Comfort setting DHW max setpoint Release Line N Programming line 1620 Release of DHW load 24h day Heating circ time pgm Time program 4 DHW Low tariff Time pgm 4 DHW or Low tariff 24h day Not recommended Regardless of the time programs the temperature of the domestic hot water is continuously maintained at...

Page 75: ...hen the swimming pool function is activated by parameter 6046 being set to Swimming pool release Use of input H33 requires an extension to be connected to the control 4 4 2 Heat Pump Functions Line N Programming line 2803 Overrun time cond pump 2843 Compressor off time min 2844 Switch off temp max 2862 Locking time stage 2 2873 Compressor mod run time 2882 Release integr electric flow 2884 Release...

Page 76: ...active during the time the DHW storage tank is charged The function is not active either in the case of plants with buffer combi storage tanks Compensation heat deficit only acts in heating mode The parameter is inactive in cooling mode The maximum switch off temperature is given priority over the Compensation function In the case of sudden setpoint changes both integrals are cleared Behavior in c...

Page 77: ...both criteria thus ensuring release of the supplementary source Overtemperature protection Line N Programming line 3705 Overrun time Overrun time of release for the external source If the integral indicates another heat deficit before the overrun time has elapsed the release remains activated If the set overrun time elapses before the common flow temperature drops below the common flow temperature...

Page 78: ...perature is within the differential and as long as it is not less than 1K above the setpoint Charging time limitation During charging the room heating may be stopped or insufficient Therefore it is often advisable to limit the charging process timewise to enable heating If has been selected the charging time limitation will be deactivated The DHW will be heated to the nominal setpoint even if the ...

Page 79: ...ly and might cause some unwanted discomfort Information Switching on the cooling mode causes the menu Cooling circuit 1 to appear Heating circuit 2 Using this setting heating circuit 2 can be switched on and off DHW Line N PROGRAMMING LINE 5731 DHW ctrl elem Q3 No charging request No DHW charging via Q3 Charging pump DHW charging is effected with a pump connected to terminal Q3 Diverting valve DHW...

Page 80: ...ned switch on delay in case of a failure is therefore ignored which avoids waiting periods during servicing troubleshooting This option should not be used in normal operating conditions Fault History Line N Programming line 6800 to 6818 Time stamp and history of faults 1 10 The controller saves the last 10 faults which have occurred to a non volatile memory Any new entry will delete the oldest ent...

Page 81: ...ps but does not prevent operation of water heat pumps or glycol water heat pumps Per diagram The heat pump will be stopped according to the current installation diagram Alarm messages Errors are ranked by priority From priority 5 onward i e priority levels 5 9 the alarm messages used in remote control OCI are sent In addition the alarm relay is switched on Table of error messages which can be disp...

Page 82: ...vice configuration No No Yes 171 Alarm contact 1 activated H1 H31 No No Yes 172 Alarm contact 2 activated H21 H22 H32 No No Yes 174 Alarm contact 4 active H3 No No Yes 178 HC1 safety thermostat No No Yes 179 HC2 safety thermostat No No Yes 201 Frost alarm BX1 X80 Yes No No 243 Swimming pool sensor BX34 X154 No No Yes 325 BX ext unit same sensors No No Yes 327 Ext modules same functions No No Yes 3...

Page 83: ...Comp1 max startups hr op adjusted setting the symbol will be displayed and a maintenance message will appear in the Info section 8 Too many compressor 1 startups Priority 9 This setting can be reset with the associated rights of access Emergency mode If the heat pump is not operating properly a emergency service can be maintained The emergency mode enables the installation to be run with the avail...

Page 84: ...attenuated outdoor temperatures are ignored and substituted with the adjusted simulation temperature Computation of the three outdoor temperatures based on the actual outdoor temperature continues to be performed during the simulation and these temperatures are available again when the simulation is over This function can be deactivated by selecting on this line or automatically after a 5 hour wai...

Page 85: ...elay output QX23 module 1 16 Relay output QX21 module 2 17 Relay output QX22 module 2 18 Relay output QX23 module 2 19 Not used 20 Not used 21 Not used The display shows the Key symbol Pressing the Info button displays Error 368 Warning The component being tested is receiving electrical power throughout the test Analog Input Output Testing Line N Programming line 7710 Output test UX1 7712 PWM sign...

Page 86: ...emp Charged reduced temp Off Off Ready Ready State cooling circuit 8004 End user Info level Startup heating engineer Dewpoint sensor activated Dewpoint sensor activated Manual action active Manual action active Fault Fault Frost protection active Flow frost protection active Cooling mode locked Locked heating mode Lock time after heating Locked generator Locked storage tank Cooling mode restricted...

Page 87: ...ed Locked solid fuel boiler Locked outside temperature Locked economy mode In operation for HC DHW In operation for HC DHW Released for HC DHW Released for HC DHW In operation for DHW In operation for DHW Released for DHW Released for DHW In operation for heating circuit In operation for heating circuit In operation for HC DHW In operation for HC DHW Released for HC DHW Released for HC DHW In oper...

Page 88: ...rogramming line 8450 Hours run compressor 1 8454 Locking time HP 8455 Counter number of locks HP 8456 Hours run el flow 8457 Start counter el flow Hours run compressor 1 This operating line shows the total number of hours run of compressor 1 since it was first commissioned Locking time HP Displays the cumulative locking time since start up by the electrical services via external locking signal Cou...

Page 89: ...s the DHW circulation pump and charging temperature operating hour and startup counters are displayed as well as temperatures of the primary controllers and DHW heater Swimming Pool Line N Programming line 8900 Swimming pool temp The current and setpoint temperature of the swimming pool are displayed Line Line N Programming line 8950 Common flow temp Multifunction Relay Status Line N Programming l...

Page 90: ...ched on I O module Line no Programming line 9071 Relay output QX31 9072 Relay output QX32 9073 Relay output QX33 9074 Relay output QX34 9075 Relay output QX35 The switching states of each relay on the I O module can be queried via these operating lines The display of Off means that the plant component assigned to the output is currently off The display of On means that the relevant plant component...

Page 91: ...lug the ACI Remove the electrical back up ref 3 Remove any limescale deposits that have built up inside the tank It is best to let the scale stuck to the walls of the tank it forms a protective layer Gently remove any limescale deposit on the glove finger Do not use any metal objects or chemical or abrasive products Replace the joint of the electrical back up ref 4 each time it is dismantled Repla...

Page 92: ...n valve Channel AB Inlet from the hydraulic unit heat pump Channel A Open Outlet to DHW tank Channel B Open Outlet to the heating circuit 6 3 ACI check Check polarity Check voltage The appliance powered on the voltage value must be positive and lie between 0 and 6 5 V dc Heating return Valve Outlet to Exchanger Outlet to DHW tank Valve motor figure 6 Fitting the distribution valve figure 7 ACI che...

Page 93: ...or Unit 7 1 WO A060LFCA and WO A080LFCA 7 1 1 Appearance 7 1 2 TOP PANEL removal screw screw Remove the mounting screws Remove the TOP PANEL Maintenance document 1792 EN 93 Split system single phase type WOYA060LFCA and WOYA080LFCA ...

Page 94: ...rews screw Remove the 2 mounting screw Remove the VALVE COVER removal hook screw Remove the INVERTER BOX COVER by sliding upward Remove the 4 mounting screw and hook Remove the connectors and wires Remove the MAIN PCB Spread the heat dissipation compound on the other side of IPM when you exchange Main PCB by the repair Maintenance document 1792 EN Split system single phase type 94 WOYA060LFCA WOYA...

Page 95: ...OVER by sliding upward ACTPM CAPASITOR PCB TRANSISTOR PCB MAIN PCB MAIN PCB removal WO A080LFCA hook Remove the connectors and HOOK Remove the MAIN PCB Maintenance document 1792 EN 95 Split system single phase type WOYA080LFCA ...

Page 96: ... and IPM when you exchange the transistor PCB assy Back of the TRANSISTOR PCB Remove the connectors Remove the SCREWS and ACTPM Spread SILICONE GREASE G746 evenly on the other side of the ACTPM when you exchange the ACTPM Back of the ACTPM screw ACTPM ACTPM PCB removal TRANSISTOR PCB removal Maintenance document 1792 EN Split system single phase type 96 ...

Page 97: ... FAN Nut Remove the PROPELLER FAN screw screw Remove the 4 screws Loose the clamp remove the lead wires and FAN MOTOR screw screw Remove the 8 mounting screws Remove the CABINET RIGHT ASSY by sliding upward Maintenance document 1792 EN 97 Split system single phase type ...

Page 98: ...R THERMISTOR Remove the THERMISTOR SPRING Remove the THERMISTOR Remove the THERMISTOR SPRING Remove the THERMISTOR HOLDER same with the PROTECTIVE NET Turning to the Left and PROTECTIVE NET Remove the THERMISTOR Maintenance document 1792 EN Split system single phase type 98 ...

Page 99: ...e EEV coil by hand 7 1 11 PRESSURE SENSOR removal Warning Wear gloves to prevent the frostbite because a small amount of refrigerant leaks during work Remove the PRESSURE SENSOR with wrench Note the tightening torque at the installation Tightening torque is 12 1 5N m Maintenance document 1792 EN 99 Split system single phase type ...

Page 100: ...ose the 3Way valve gas and 3Way valve liquid 4 Collect the refrigerant from the 3Way valve Start the following work after completely collecting the refrigerant Do not reuse the refrigerant that has been collected COVER H COVER A COVER H COVER A COVER F Remove the COVER F A and H Remove the TERMINAL COVER Remove the connectors R RED C T BLACK S W WHITE WO A060LFCA WOA080LFCA Maintenance document 17...

Page 101: ...Remove the Thermistor Discharge Remove the COMP BOLTS 3 place Cut the Discharge pipe in this range Cut the Suction pipe in this range Remove the COMPRESSOR Range Range Procedure for compressor installation Reverse procedure to removing the compressor Precautions for installation of compressor 1 When brazing do not apply the flame to the terminal 2 When brazing be sure to replace the air in the pip...

Page 102: ...moval Screw serrated Hook 3 places Remove the mounting screws Remove the SERVICE PANEL by sliding downward Screw with washer Screw with washer Screw serrated Remove the mounting screws Remove the TOP PANEL Maintenance document 1792 EN Split system single phase type 102 WOYA100LFTA ...

Page 103: ...CB removal POWER SUPPLY PCB MAIN PCB MAIN PCB POWER SUPPLY PCB Spacer Spacer Green Black White Red Black White Power Supply PCB Controller PCB Power Supply PCB Fuse Holder Remove the connectors and cords Remove the Spacers Remove the MAIN PCB and the POWER SUPPLY PCB Maintenance document 1792 EN 103 Split system single phase type ...

Page 104: ... exchange the transistor PCB assy Back of the TRANSISTOR PCB VIEW A Remove the connectors and cords Remove the 3 mounting screws Remove the TRANSISTOR PCB ACTPM ACTPM SCREWS VIEW A Remove the connectors and cords Remove the 2 mounting screws Remove the ACTPM Active Filter Module Spread SILICONE GREASE G746 evenly on the other side of the ACTPM when you exchange the ACTPM Back of the ACTPM Maintena...

Page 105: ...oter shaft reference D cutting position And the tightening torque at the installation Tightening torque is from 10 to 15N M Cut the binder 2 places Loose the clamp 2 places and remove the lead wires Remove the 4 mounting screws Remove the FAN MOTOR screw Screw serrated screw Screw with washer Remove the 12 mounting screws Remove the RIGHT PANEL by sliding upward Maintenance document 1792 EN 105 Sp...

Page 106: ...R THERMISTOR EEV THERMISTOR OUTDOOR THERMISTOR Remove the THERMISTOR SPRING Remove the THERMISTOR Remove the THERMO HOLDER hook Open the THERMO HOLDER and remove the THERMISTOR Maintenance document 1792 EN Split system single phase type 106 ...

Page 107: ...e the SOLENOID COIL Remove the EEV coil by hand Warning Wear gloves to prevent the frostbite because a small amount of refrigerant leaks during work Remove the PRESSURE SENSOR with wrench Note the tightening torque at the installation Tightening torque is 12 1 5N m Maintenance document 1792 EN 107 Split system single phase type ...

Page 108: ...L and RIGHT PANEL 3 Fully close the 3Way valve gas and 3Way valve liquid 4 Collect the refrigerant from the 3Way valve Start the following work after completely collecting the refrigerant Do not reuse the refrigerant that has been collected COVER A COVER C Remove the COVER A B and C Remove the TERMINAL COVER Remove the connectors R RED C T BLACK S W WHITE Maintenance document 1792 EN Split system ...

Page 109: ...LTS 3 place Range Range Cut the Discharge pipe in this range Cut the Suction pipe in this range Remove the COMPRESSOR Procedure for compressor installation Reverse procedure to removing the compressor Precautions for installation of compressor 1 When brazing do not apply the flame to the terminal 2 When brazing be sure to replace the air in the pipe with nitrogen gas to prevent forming oxidization...

Page 110: ...bris to get inside refrigerant pipes during work 6 When brazing be sure to replace the air in the pipe with nitrogen gas to prevent forming oxidization scale Part name Allowable temperature Precautions in work EXPANSION VALVE MAIN 120 C Remove the coil before brazing And install the coil after brazing Detaching necessity sensor 4 WAY VALVE 120 C Remove the suction temp sensor before brazing And in...

Page 111: ... Maintenance document 1792 EN 111 Split system single phase type ...

Page 112: ...e stream Please contact the installer or local authority for more information subject to the national law of each member state Subject to modifications without notice Non contractual document Complies with Low voltage directive 2006 95 EC under standard 60335 1 and EN 60335 2 40 Electromagnetic compatibility Diretive 2004 108 EC Directive 2006 42 EC Machinery Directive for pressurised equipment 97...

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