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Fisher FSAI-Pro-122AE2, Service Manual

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Fisher FSAI-Pro-122AE2 Service Manual Download Page 42

 

 

42

unoccupied for a long time in severe cold weather.

 

8.4.11 Frequency limitation protection 

V

VOLT_RST1_ADD

Normal

VOLT_LIM_FREQ1_ADD

VOLT_LIM1_ADD

VOLT_RST2_ADD

VOLT_LIM2_ADD

VOLT_LIM_FREQ2_ADD

 

The  PCB  will  detect  the  voltage  of  power  supply  and  adjust  the  compressor  running  frequency  to 

protect the system.   

In the first 10 seconds after power on, this protection is inactive.   

When  this  protection  happens,  it  will last  3  minutes  and  then  the  PCB  will  detect  the  power  supply 

voltage again. 

 

Summary of Contents for FSAI-Pro-122AE2

Page 1: ...er Split Wall Mounted Type FSAI Pro 92AE2 FSOAI Pro 92AE2 FSAI Pro 122AE2 FSOAI Pro 122AE2 NOTE Before servicing the unit please read this at first Always contact with your service center if meet problem FI_SM_FSAI Pro 92 122AE2_150316 ...

Page 2: ...3 Pipe length and the elevation 15 6 4 Installation for the first time 16 6 5 Adding the refrigerant after running the system for many years 19 6 6 Re installation while the indoor unit need to be repaired 20 6 7 Re installation while the outdoor unit need to be repaired 22 7 Operation Characteristics 24 8 Electronic function 25 8 1 Abbreviation 25 8 2 Display function 25 8 3 Main Protection 26 8 ...

Page 3: ...emble or repair the product there is risk of fire or electric shock Always ground the product There is risk of fire or electric shock Install the panel and the cover of control box securely There is risk of fire of electric shock Always install a dedicated circuit and breaker Improper wiring or installation may cause fore or electric shock Use the correctly rated breaker of fuse There is risk of f...

Page 4: ...ly plug during operation There is risk of fire or electric shock Do not touch operation the product with wet hands Do not place a heater or other appliance near the power cable There is risk of fire and electric shock Do not allow water to run into electrical parts It may cause fire failure of the product or electric shock Do not store or use flammable gas or combustible near the product There is ...

Page 5: ...wer supply plug or turn off the breaker There is risk of product damage or failure or unintended operation Take care to ensure that nobody could step on or fall onto the outdoor unit This could result in personal injury and product damage CAUTION Always check for gas refrigerant leakage after installation or repair of product Low refrigerant levels may cause failure of product Install the drain ho...

Page 6: ...oor units Always insert the filter securely Clean the filter every two weeks or more often if necessary A dirty filter reduces the efficiency of the air conditioner and could cause product malfunction or damage Do not insert hands or other objects through air inlet or outlet while the product is operated Do not drink the water drained from the product Use a firm stool or ladder when cleaning or ma...

Page 7: ...7 2 Function Model Names of Indoor Outdoor Units DC Inverter Capacity Indoor units Outdoor units 9k FSAI Pro 92AE2 FSOAI Pro 92AE2 12k FSAI Pro 122AE2 FSOAI Pro 122AE2 O optional function ...

Page 8: ...8 3 Dimension 3 1 Indoor Unit W D H Model L mm R mm H mm Dimension of installation hole mm FSAI Pro 92AE2 100 95 45 65 FSAI Pro 122AE2 Model W D H FSAI Pro 92AE2 800 188 275 FSAI Pro 122AE2 800 188 275 ...

Page 9: ... Unit More than 30cm More than 60cm More than 200cm More than 30cm More than 60cm Service space Fence or obstacles Model W D H W1 A B FSOAI Pro 92AE2 780 250 540 843 549 276 FSOAI Pro 122AE2 780 250 540 843 549 276 ...

Page 10: ...LIQUID SIDE GAS SIDE HEAT EXCHANGE EVAPORATOR HEAT EXCHANGE CONDENSER Compressor 2 WAY VALVE 3 WAY VALVE 4 WAY VALVE COOLING HEATING T2 Evaporator temp sensor T1 Room temp sensor T3 Condenser temp sensor Accumulator T5 Discharge temp sensor T4 Ambient temp sensor INDOOR OUTDOOR ...

Page 11: ...11 5 Wiring Diagram 5 1 Indoor Unit FSOAI Pro 92AE2 FSAI Pro 122AE2 ...

Page 12: ...12 5 2 Outdoor Unit FSOAI Pro 92AE2 ...

Page 13: ...13 FSOAI Pro 122AE2 ...

Page 14: ...3 8 2500 255kgf cm 2600 265kgf cm Ф12 7 1 2 3500 357kgf cm 3600 367kgf cm Ф15 9 5 8 4500 459kgf cm 4700 479kgf cm 6 2 Connecting the cables The power cord of connect should be selected according to the following specifications sheet Rated capacity kBTU h Nominal cross sectional area mm 9k 2 5 12k 2 5 The cable size and the current of the fuse please chose according to the local rules ...

Page 15: ... Elevation B m Max Length A m Additional refrigerant g m Gas Liquid FSAI Pro 92AE2 3 8 Ф9 52 1 4 Ф6 35 5 10 25 20 FSAI Pro 122AE2 5 10 25 20 Caution The capacity test is based on the standard length and the maximum permissive length is based on the system reliability The oil trap should be installed per 5 7 meters ...

Page 16: ...ft brush to check for leakage of the connecting points of the piping If bubbles come out the pipes have leakage 1 Air purging with vacuum pump 1 Completely tighten the flare nuts of the indoor and outdoor units confirm that both the 2 way and 3 way valves are set to the closed position 2 Connect the charge hose with the push pin of handle lo to the 3 way valves gas service port 3 Connect the charg...

Page 17: ... indicator is a little higher than the atmosphere pressure Then remove the charge hose from the 3 way valve 8 Fully open the 2 way valve and 3 way valve and securely tighten the cap of the 3 way valve 2 Air purging by refrigerant Procedure 1 Confirm that both the 2 way and 3 way valves are set to the closed position 2 Connect the charge set and a charging cylinder to the service port of the 3 way ...

Page 18: ...erant if the pipe length 5m Procedure 1 Connect the charge hose to the charging cylinder open the 2 way valve and the 3 way valve Connect the charge hose which you disconnected from the vacuum pump to the valve at the bottom of the cylinder If the refrigerant is R410A make the cylinder bottom up to ensure the liquid charge 2 Purge the air from the charge hose Open the valve at the bottom of the cy...

Page 19: ...onnect the charge hose to the 3 way service port open the 2 way valve and the 3 way valve Connect the charge hose to the valve at the bottom of the cylinder If the refrigerant is R410A make the cylinder bottom up to ensure liquid charge 2 Purge the air from the charge hose Open the valve at the bottom of the cylinder and press the check valve on the charge set to purge the air be careful of the li...

Page 20: ...le the indoor unit need to be repaired 1 Collecting the refrigerant into the outdoor unit Procedure 1 Confirm that both the 2 way and 3 way valves are set to the opened position Remove the valve stem caps and confirm that the valve stems are in the opened position Be sure to use a hexagonal wrench to operate the valve stems 2 Connect the charge hose with the push pin of handle lo to the 3 way valv...

Page 21: ...by the refrigerant Procedure 1 Confirm that both the 2 way and 3 way valves are set to the closed position 2 Connect the charge set and a charging cylinder to the service port of the 3 way valve Leave the valve on the charging cylinder closed 3 Air purging Open the valves on the charging cylinder and the charge set Purge the air by loosening the flare nut on the 2 way valve approximately 45 for 3 ...

Page 22: ...o tighten the service port cap to a torque 18N m Be sure to check the gas leakage 6 7 Re installation while the outdoor unit need to be repaired 1 Evacuation for the whole system Procedure 1 Confirm that both the 2 way and 3 way valves are set to the opened position 2 Connect the vacuum pump to 3 way valve s service port 3 Evacuation for approximately one hour Confirm that the compound meter indic...

Page 23: ... on the charge set and charge the system with liquid refrigerant If the system cannot be charge with the specified amount of refrigerant or can be charged with a little at a time approximately 150g each time operating the air conditioner in the cooling cycle however one time is not sufficient wait approximately 1 minute and then repeat the procedure 5 When the electronic scale displays the proper ...

Page 24: ...ertain safety protection features may come into operation and cause the unit to operate abnormally 2 The room relative humidity should be less than 80 If the air conditioner operates beyond this figure the surface of the air conditioner may attract condensation Please set the vertical air flow louver to its maximum angle vertically to the floor and set HIGH fan mode 3 The optimum performance will ...

Page 25: ...hen Clean Air feature is activated DEFROST PRE DEF Indicator This indicator illuminates when the air conditioner starts defrosting automatically or when the warm air control feature is activated in heating mode RUN OPERATION indicator This indicator illuminates when the air conditioner is running TIMER Timer indicator This indicator illuminates when TIMER is set ON OFF Temperature indicator Displa...

Page 26: ...eed keeps too low 300RPM for certain time the unit will stop and the LED will display the failure 8 3 5 Inverter module protection The Inverter module has a protection function about current voltage and temperature If these protections happen the corresponding code will display on indoor unit and the unit will stop working 8 3 6 Indoor fan delayed open function When the unit starts up the louver w...

Page 27: ...with compressor frequency F14 3 minutes defrosting every 40 minutes when T4 7 2 minutes defrosting every 90 minutes when T4 7 T4 Run supposed T4 50 Run supposed T4 15 TP Run supposed T4 50 Run supposed T4 15 8 3 9 Refrigerant leakage detection This function is only active in cooling mode It can better prevent the compressor being damaged by refrigerant leakage or compressor overload Open condition...

Page 28: ...mpressor stop 2 Temperature setting function is disabled and no setting temperature is displayed 3 Indoor fan can be set to high med low auto 4 The louver operates same as in cooling mode 5 Auto fan a b c d 5 0 4 0 2 5 1 0 6 0 T 1 2 4 e H H L 0 7 5 L H L 0 5 L H L 0 2 5 L L ...

Page 29: ...x T4FREMAX6 Fmax T4FREMAX7 Meanwhile the maximum frequency is limited by the indoor fan speed Indoor fan speed Maximum frequency High speed turbo function No limit Silent mode Fixed at F3 If users switch on AC by remote controller the compressor will run at the Fmax frequency for 7 minutes according to the outdoor ambient temp During the 7 minutes the frequency limitation is active 7 minutes later...

Page 30: ...the frequency to 3 grade higher until to FREMAX B E Increase the frequency to 2 grade higher until to FREMAX F G Increase the frequency to 1 grade higher until to FREMAX H Keep the current frequency I Decrease the frequency to 1 grade lower until to F1 J Run at F1 for 1h if T1 Ts 2 the compressor will stop Meanwhile the compressor running frequency is limited by the current 50 T4 CoolT4Zone5I Cool...

Page 31: ...Cooling While A B C means different fan speed of outdoor unit 8 4 2 3 Indoor fan running rules In cooling mode indoor fan runs all the time and the speed can be selected as high medium low auto and silent When the compressor is running the indoor fan is controlled as below ...

Page 32: ...ssor will keep running at the current frequency T3 52 the compressor will not limit the frequency and resume to the former frequency T3 60 for 5 seconds the compressor will stop until T3 52 8 4 2 5 Evaporator temperature protection T2 0 the compressor will stop and restart when T2 5 0 T2 4 the compressor frequency will be limited and decreased to the lower level 4 T2 7 the compressor will keep the...

Page 33: ...mits to the following rule Fmax T4FREHEATMAX1 34 T4 Off 33 28 27 25 24 22 21 19 18 16 17 15 14 12 11 6 5 Fmax T4FREHEATMAX2 Fmax T4FREHEATMAX3 Fmax T4FREHEATMAX4 Fmax T4FREHEATMAX5 Fmax T4FREHEATMAX6 Fmax T4FREHEATMAX7 Fmax T4FREHEATMAX8 1 0 3 4 7 8 11 12 15 16 Fmax T4FREHEATMAX9 Fmax F21 Fmax F22 Fmax F23 Fmax F24 Fmax F25 ...

Page 34: ...er the compressor running frequency will be controlled as below While the zones of A B C are corresponding to different compressor running frequency Temperature compensation ΔT 4 C as default it can be modified by the service Note When T1 Ts keeps in the same temp zone for 3 minutes the compressor will run as the below rules A Increase the frequency to 3 grade higher until to FREMAX B E Increase t...

Page 35: ...g rules 21 19 A C 18 16 D 15 13 12 10 B E Heating 8 4 3 3 Indoor fan running rules In heating mode indoor fan can be selected as high medium low auto and silent The anti cold wind function is preferential The running rules of anti cold wind function depend on both T1 and T2 that is more comfortable control When the compressor is running the indoor fan is controlled as below ...

Page 36: ...erature rising the indoor fan will be forced to run 127 seconds with breeze During this period the anti cold wind is disabled Auto fan action in heating mode 1 0 2 0 3 0 4 0 0 0 T1 Ts T L H L 0 4 L H L 0 6 L 5 0 6 0 6 5 H H L 0 8 L H L 0 6 L H L 0 2 L ...

Page 37: ...30 2 If the compressor cumulate running time is up to 35 minutes and T3 TCDI2 T3 T30SUBT3TWO T30 3 If the compressor cumulate running time is up to 29 minutes and T3 TCDI3 for 3 minutes 4 If the compressor cumulate running time is up to 120 minutes and T3 15 Condition of ending defrosting If any one of the following items is satisfied the defrosting will finish and the machine will turn to normal ...

Page 38: ...r 9k 12kmodels Compressor on off on on off off 4 way valve Outdoor fan xx no longer than 10m 30s 10s 10s xx 20 For 18k 24k models Compressor on off on on off off 4 way valve Outdoor fan xx no longer than 10m 30s 10s 10s xx 20 ...

Page 39: ...ill choose cooling heating or fan only mode according to ΔT ΔT T1 Ts ΔT T1 Ts Running mode ΔT 1 Cooling 1 ΔT 1 Fan only ΔT 1 Heating Indoor fan will run at auto fan of the relevant mode The louver operates same as in relevant mode If the machine switches mode between heating and cooling the compressor will keep stopping for 15 minutes and then choose mode according to T1 Ts If the setting temperat...

Page 40: ...button will carry the machine to forced auto mode If pressing the button once again within 5 seconds the machine will turn into forced cooling mode In forced auto forced cooling or any other operation mode pressing touch button will turn off the machine 8 4 6 2 In forced operation mode all general protections and remote control are available 8 4 6 3 Operation rules Forced cooling mode The compress...

Page 41: ...ter the setting temperature stops rising and indoor fan is fixed as low speed Anti cold wind function has the priority 8 4 8 3 Timer setting is available 8 4 8 4 When user uses timer off function in sleep mode or sleep function in timer off mode if the timing is less than 7 hours sleep function will be cancelled when reaching the setting time If the timing is more than 7 hours the machine will not...

Page 42: ..._ADD VOLT_RST2_ADD VOLT_LIM2_ADD VOLT_LIM_FREQ2_ADD The PCB will detect the voltage of power supply and adjust the compressor running frequency to protect the system In the first 10 seconds after power on this protection is inactive When this protection happens it will last 3 minutes and then the PCB will detect the power supply voltage again ...

Page 43: ...ODIFY button Press ADJUST to choose 1 or 2 Press CONFIRM button at last 1 intelligent defrosting mode 2 common defrosting mode 4 Indoor fan speed of when setting temp is achieved Press ADJUST button choose F4 Press MODIFY button Press ADJUST to choose 1 or 2 or 3 Press CONFIRM button at last 1 Indoor fan stops when setting temp is achieved 2 Indoor fan keeps at lowest fan speed when setting temp i...

Page 44: ... the actual value exceeds the range it will display the maximum value or minimum value 19 99 19 99 A0 A1 A9 100 101 109 b0 b1 b9 110 111 119 c0 c1 c9 120 121 129 d0 d1 d9 130 131 139 E0 E1 E9 140 141 149 F0 F1 F9 150 151 159 Indoor fan speed Outdoor fan speed IF OF 0 OFF 1 2 3 4 Low speed Medium speed High speed Turbo For some big capacity motors 14 FF Actual fan speed Display value turns to decim...

Page 45: ...gineer Outdoor unit protection status 6 b6 0 FF For the detailed meaning please consult with engineer Current dL 0 FF AC voltage Ac 0 FF DC voltage Uo 0 FF Td temperature Td 0 FF Display value Td actual value 2 50 8 4 14 Mode Lock 8 4 14 1 Enter condition Hold touch button of air conditioners and then power on loose the button after 5 10 seconds later the air conditioners will switch to heating on...

Page 46: ... Refrigerant Leakage Detection 2 times O F1 Open circuit or short circuit of outdoor ambient T4 temperature sensor 3 times O F2 Open circuit or short circuit of condenser coil temperature T3 sensor 4 times O F3 Open circuit or short circuit of compressor discharge T5 temperature sensor 5 times O F4 Outdoor unit EEPROM parameter error 6 times O F5 Outdoor fan speed has been out of control 1 times P...

Page 47: ...47 9 2 Diagnosis and Solution 9 2 1 EEPROM parameter error diagnosis and solution E0 EEPROM a read only memory whose contents can be erased and reprogrammed using a pulsed voltage ...

Page 48: ...48 9 2 2 Indoor unit and outdoor unit communication protection error diagnosis and solution E1 ...

Page 49: ...49 9 2 3 Zero crossing detection error diagnosis and solution E2 9 2 4 Fan speed has been out of control diagnosis and solution E3 F5 ...

Page 50: ... winding by using the tester If any resistance value is zero the fan motor must have problems and need to be replaced 3 Outdoor or indoor DC Fan Motor control chip is in on PCB For WZDK36 38G W WZDK40 38G W 1 1 Release the UVW connector Measure the resistance of U V U W V W If the resistance is not equal to each other the fan motor must has problems and need to be replaced Otherwise go to step 2 ...

Page 51: ...not 5V change the PCB Otherwise go to step 3 Index2 1 Indoor AC Fan Motor Power on and set the unit running in fan mode at high fan speed After running for 15 seconds measure the voltage of pin1 and pin2 If the value of the voltage is less than 100V 208 240V power supply or 50V 115V power supply the PCB must has problems and need to be replaced 2 Indoor or Outdoor DC Fan Motor control chip is in f...

Page 52: ...52 DC motor voltage input and output NO Color Signal Voltage 1 Red Vs Vm 280V 380V 2 3 Black GND 0V 4 White Vcc 14 17 5V 5 Yellow Vsp 0 5 6V 6 Blue FG 14 17 5V ...

Page 53: ...53 9 2 5 Open circuit or short circuit of temperature sensor diagnosis and solution E4 E5 F1 F2 F3 ...

Page 54: ... Does the problem remain again No Is there any leakage Especially the connection parts such as the gas valve and the liquid valve No Shut off the power supply and turn it on 5 seconds later Is it still displaying the error code Replace indoor PCB Yes Repair the leakage and recharge the refrigerant Yes Clear the blocking Yes Is there any block i n g Such as the capillary or the welded points of the...

Page 55: ...55 9 2 7 IPM malfunction or IGBT over strong current protection diagnosis and solution P0 ...

Page 56: ...56 9 2 8 Over voltage or too low voltage protection diagnosis and solution P1 ...

Page 57: ...57 9 2 9 High temperature protection of compressor top diagnosis and solution P2 ...

Page 58: ...58 9 2 10 Inverter compressor drive error diagnosis and solution P4 ...

Page 59: ...TAGE CAUTION Connect discharge resistance approx 100Ω 40W or soldering iron plug between terminals of the electrolytic capacitor on the contrary side of the outdoor PCB Note The picture above is only for reference The plug of your side may be different Main parts check 1 Temperature sensor checking Disconnect the temperature sensor from PCB measure the resistance value with a tester ...

Page 60: ...of each winding by using the multi meter Table 1 Some frequently used R T data for T1 T2 T3 and T4 sensor Temperature 5 10 15 20 25 30 40 50 60 Resistance Value KΩ 26 9 20 7 16 1 12 6 10 8 5 2 3 5 2 4 Table 2 Some frequently used R T data for T5 sensor Temperature 5 15 25 35 60 70 80 90 100 Resistance Value KΩ 141 6 88 56 1 36 6 13 8 9 7 6 9 5 3 7 Resistance value KΩ Temperature T5 T1 T2 T3 T4 ...

Page 61: ...Pro 122AE2 Compressor ASN108D22UEZ ASN108D22UEZ Indoor fan motor RPG20E RPG20E Outdoor fan motor WZDK36 38G W WZDK36 38G W Note The motor marked means DC fan motor with control chip in the PCB while the one marked means DC fan motor with control chip in the fan motor ...

Page 62: ... checking Measure the resistance value of each winding by using the tester Position Resistance Value ASN108D22UEZ DA130M1C 31FZ DA150S1C 20FZ ASN108D22UEZ Blue Red 1 5Ω 20 1 77Ω 20 0 95Ω 20 1 5Ω 20 Blue Black Red Blue ...

Page 63: ...e value Red Black Several MΩ P N U V W Digital tester Normal resistance value Red Black Several MΩ U N V W 4 Indoor AC Fan Motor Measure the resistance value of each winding by using the tester Position Resistance Value RPG20E RPG45C Black Red 430Ω 8 20 Brand Dayang 388Ω 8 20 Brand Weiling 175Ω 8 20 Brand Dayang 168Ω 8 20 Brand Weiling White Black 370Ω 8 20 Brand Dayang 360Ω 8 20 Brand Weiling 105...

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