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FSI-95HFD;FSI-125HFD

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Summary of Contents for Fisher FSI-95HFD

  • Page 1 Cover FSI-95HFD;FSI-125HFD...
  • Page 2: Table Of Contents

    8.5 Pumping down (Re-installation) 14 8.6 Re-air purging (Re-installation) 15 8.7 Balance refrigerant of the 2-way, 3-way valves 8.8 Evacuation 8.9 Gas charging 18 9. Pressure table 19 9.1 FSI-95HFD 9.2 FSI-125HFD Capacity table 20 10.1 FSI-95HFD 10.2 FSI-125HFD Electronic function 11.1.
  • Page 3 Content 11.8. Outdoor low temperature protection (optional) 11.9. Automatic operation mode 26 11.10. Manual switch 11.11. Timer Function 11.12. Sleep mode 26 11.13. Auto restart function 11.14. Turbo function 11.15. Model and Parameters Troubleshooting 28 13.1 Indoor Unit Error Display 28 13.2 Diagnostic chart 33 13.3 Resetting phenomenon often occurs during operation 34 13.4 Operation lamp flashes and Timer lamp off...
  • Page 5: Precaution

    Service manual Precaution Safety Precaution To prevent injury to the user or other people and property damage, the following instructions must be followed. Incorrect operation due to ignoring instruction will cause harm or damage. Before service unit, be sure to read this service manual at first. Warning Installation There is risk of fire or electric shock.
  • Page 6 Service manual There is risk of electric shock. consumer air conditioner, not a precision refrigerant When the product is not be used for a long time, system. There is risk of damage or loss of property. disconnect the power supply plug or turn off the breaker.
  • Page 7: Function

    Service manual Function Indoor unit Operation ON/OFF by remote controller Sensing by room temperature Room temperature sensor. Pipe temperature sensor. Room temperature control Maintain the room temperature in accordance with the setting temperature. Anti-freezing control in cooling (160v-253v) Work voltage Prevent the water being freezed on evaporator by sensing the evaporator pipe temperature in cooling mode High efficiency (30%)
  • Page 8 Service manual Outdoor unit Power relay control The unit has 3 mins delay between continuously ON/OFF operations. Low noise air flow system Bird tail propeller fan makes the outdoor unit run more quietly. Hydrophilic aluminum fin The hydrophilic fin can improve the heating efficiency at operation mode. 4 way valve control It is only operated in the heating operation mode except defrosting operation.
  • Page 9: Dimension

    Service manual Dimension 3.1 Indoor unit Dimension Mode 3.2 Outdoor unit Dimension Mode...
  • Page 10: Specification

    Service manual Specification FSI-95HFD FSI-125HFD Model Power supply Ph-V-Hz 1, 220-240V~, 50Hz 1, 220-240V~, 50Hz Capacity 2650(1020~3230) 3500(1290~4250) Input 810(260~1350) 1050(520~1600) Cooling Rated current 3.3(1.5~7.0) 5.1(2.7~8.5) 3.27 3.33 Capacity 2950(1020~4050) 4100(1400~6000) Input 810(330~1550) 1130(520~2050) Heating Rated current 3.5(1.4~7.5) 5.2(2.7~10.0) 3.62 3.63...
  • Page 11: Refrigerant Cycle Diagram

    Service manual Refrigerant cycle diagram...
  • Page 12: Operation Limits

    Service manual Operation limits Cooling operation Outdoor unit air temp.℃ DB Indoor air temp. ℃ DB Note: The chart is the result from the continuous operation under constant air temperature conditions. However, excludes the initial pull-down stage. Heating operation Outdoor unit air temp.℃ DB Indoor air temp.
  • Page 13: Schematic Diagram And Wiring Diagram

    Service manual Schematic diagram and Wiring diagram 7.1. Schematic diagram 7.1.1 Display board 9012 LED1 LED2 LED3 DISP2 74HC164 8LED DEF R DATA TIME Y DIGI FROM INDOOR PCB AUTO G REMOTE 47u/16V 9012 R1 102 9013 R4 221 REC1 dig.1 DISP1 d dp e...
  • Page 14 Service manual 7.1.3 Outdoor main PCB 64 63 62 61 FAN' Compress Top IOPC5 4-WAY' AC-IN IOPC4 4-WAY AC-IN IOPC3 CAP3/IOA5 FAN' IOPC2 CAP2/QEP1/IOPA4 SCIRX/IOPA1 CAP1/QEP0/IOPA3 4-WAY' SCITX/IOPA0 TMS320F242 IOPC1 POWER +12V 4148 (64QFP) IOPC0 VSSA +12V EMU1 VDDA POWER1 EMU0 ADCIN07 XTAL2...
  • Page 15: Wiring Diagram

    Service manual 7.2. Wiring diagram 7.2.1 FSI-95HFD, FSI-125HFD UV light Micro Switch...
  • Page 16: Installation Details

    Service manual Installation details Wrench torque sheet for installation Outside diameter Torque inch Kg.m φ6.35 φ9.52 φ12.7 φ15.88 φ19.05 Connecting the cables The power cord of connect should be selected according to the following specifications sheet. Grade Unit Pipe length and the elevation Standard Max.
  • Page 17: Air Purging Of The Piping And Indoor Unit

    Service manual Air purging of the piping and indoor unit Required tools: Hexagonal wrench; adjustable wrench; torque wrenches, wrench to hold the joints and gas leak detector. Note: The air in the indoor unit and in the piping must be purged. If air remains in the refrigeration piping, it will affect the compressor, reduce the cooling capacity, and could lead to a malfunction of unit.
  • Page 18: Pumping Down (Re-Installation)

    Service manual Pumping down (Re-installation) 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.
  • Page 19: Re-Air Purging (Re-Installation)

    Service manual Re-air purging (Re-installation) 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.
  • Page 20: Balance Refrigerant Of The 2-Way, 3-Way Valves

    Service manual Balance refrigerant of the 2-way, 3-way valves Procedure: 1. Confirm that both the 2-way and 3-way valves are set to the open position. 2. Connect the charge set to the 3-way valve’s service port. Leave the valve on the charge set closed. Connect the charge hose with the push pin to the service port.
  • Page 21: Evacuation

    Service manual Evacuation Procedure: 1. Connect the vacuum pump to the charge set’s centre hose. 2. Evacuation for approximately one hour. Confirm that the gauge needle has moved toward -0.1 Mpa (-76 cmHg) [vacuum of 4 mmHg or less]. 3. Close the valve (Low side) on the charge set, turn off the vacuum pump, and confirm that the gauge needle does not move (approximately 5 minutes after turning off the vacuum pump).
  • Page 22: Gas Charging

    Service manual Gas charging Procedure: 1. Connect the charge hose to the charging cylinder. Connect the charge hose which you disconnected from the vacuum pump to the valve at the bottom of the cylinder. 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 liquid refrigerant).
  • Page 23: Pressure Table

    Pressure table Note: The pressure data is from 3 way valve, the pressure data are pressure above atmosphere. D: Dry bulb temp. W: Wet bulb temp. 9.1 FSI-95HFD Cooling mode Outdoor temperature (Dry bulb temp) Indoor Conditions Pressure 25ºC 30ºC 35ºC 40ºC 45ºC 50ºC 21ºC D15ºC W...
  • Page 24: Capacity Table

    Service manual 10. Capacity table 10.1 FSI-95HFD COOLING OUTDOOR TEMPERATURE DRY 21ºC 25ºC 30ºC 35ºC 40ºC 45ºC 50ºC Indoor Conditions Total capacity kW 2.87 3.00 2.60 2.34 1.98 1.70 1.53 21ºC D Sensitive capacity kW 1.84 1.91 2.03 1.99 1.65 1.46...
  • Page 25: Fsi-125Hfd

    Service manual 10.2 FSI-125HFD COOLING OUTDOOR TEMPERATURE DRY Indoor 21ºC 25ºC 30ºC 35ºC 40ºC 45ºC 50ºC Conditions Total capacity kW 3.187 3.48 3.30 3.01 2.81 2.38 2.16 21ºC D Sensitive capacity kW 2.23 2.40 2.38 2.28 2.25 2.10 1.90 15ºC W Input kW.
  • Page 26: Electronic Function

    Service manual 11. Electronic function 11.1. Display board 11.1.1. AUTO indicator This indicator illuminates when the air conditioner is in AUTO operation. 11.1.2. TIMER indicator This indicator illuminates when TIMER is set ON/OFF. 11.1.3. PRE.-DEF. Indicator (For Cooling & Heating models only) This indicator illuminates when the air conditioner starts defrosting automatically or when the warm air control feature is activated in heating mode.
  • Page 27: Dehumidifying Mode

    Service manual 11.4.3 Auto fan at cooling mode: Condition Indoor fan speed T=Indoor Temp.-Setting Temp. Room temp. up T<1.5℃ 1.5℃<T<4℃ Mid. T>4℃ High Room temp. down T> 3℃ High 1℃<T<3℃ Mid. T<1℃ 11.4.4 Anti-freezing control to indoor evaporator at cooling mode( T: evaporator temp. ) Evaporator Temp.
  • Page 28 Service manual Condition Compressor Outdoor fan Room temp. up T> Ts+3 T<Ts+3 Room temp. down T< Ts+2 T>Ts+2 11.6.4. Indoor Fan actions at heating mode Indoor Fan can be set at HIGH/MID/LOW/AUTO by using a remote controller, but Anti-cold wind function prevails.
  • Page 29: Defrosting Operation

    Service manual 11.7. Defrosting operation 11.7.1 Defrosting condition: 11.7.1.1. When outdoor temp. is more than 0℃, Defrosting starts when meeting one of the following conditions, a. The temperature of outdoor heat exchanger remains consecutively lower than 3°c for more than 40 minutes, and the temperature remains consecutively -4°c for more than 3 minutes, b.
  • Page 30: Automatic Operation Mode

    Service manual 11.9. Automatic operation mode The air conditioner automatically selects one of the following operation modes: cooling, heating or fan only according to the temp. difference between room temp. (TA) and set temp. (TS). TA—TS Operation mode TA—TS>2℃ Cooling -1℃≤TA-TS≤+2℃...
  • Page 31: Model And Parameters

    Service manual 12. Model and Parameters Model FSI-95HFD FSI-125HFD RACFAN 1300 1250 RAHFAN 1300 1300 RATIFC RATIFH SLEEPTIMC FANCSHIGH 1300 1250 FANHSHIGH 1300 1300 FANCHIGH 1250 1250 FANHHIGH 1250 1300 FANMID 1100 1000 FANLOW FANSLOW I1COOL I2COOL I3COOL I1HEAT I2HEAT I3HEAT 10.0...
  • Page 32: Troubleshooting

    Service manual Troubleshooting 13.1 Indoor Unit Error Display Display LED STATUS EEPROM error Indoor / outdoor units communication protection Zero-crossing examination error Fan speed beyond control Open or short circuit of outdoor temperature sensor Room temperature or evaporator temperature sensor open or short circuit of Module protection Over voltage or too low voltage protection Compressor top protection against temperature...
  • Page 33 Service manual Disconnect the power supply, after 1 minutes, connect the power supply , turn on the unit using remote controller, does the unit work normally ? Is the connection on outdoor control board and between indoor and outdoor unit good? Does the L、 Does the led on outdoor control board bright? N connect good? Does the S wire connect reliably? Is the voltage on terminal CZ1 and CZ2 of the outdoor main PCB is 5V?
  • Page 34 Service manual Is connector connection good? Is voltage being applied to the fan motor? (rang 90v-160v between mid pin and N on CN1 Repair the connector. Indoor fan motor is defective Indoor PCB is defective Replace indoor fan motor. Replace indoor main PCB. 13.1.5 Display LED STATUS...
  • Page 35 Service manual Is connection to connector good? Repair connector Is the wires to compressor right? Check the voltage between P and N on inverter module. Is it about 380V? Test the outdoor power supply board again. Check the inverter module, If some component cracked or damaged? Inverter module damaged, replace it.
  • Page 36 Service manual Does compressor operate? Is the connection good? Is refrigerant circulation volume normal? Connect and test again. Is protector normal? Gas charging Replace protector Is abnormality the same after gas charging Check the outdoor main PCB Check refrigerant system (such as clogging of Replace the outdoor main PCB.
  • Page 37: Diagnostic Chart

    Service manual Reconnecting Replace outdoor main PCB If the problem can not be solved, replace inverter module If the problem comes to again, check wingding resistance of inverter compressor, is it 0.64 ohm? Replace inverter compressor 13.2 Diagnostic chart After energizing, no indicator is lighted and the air conditioner can’t be operated.
  • Page 38: Resetting Phenomenon Often Occurs During Operation

    Service manual 13.3 Resetting phenomenon often occurs during operation (That is automatically entering to the status when power is on.) The reason is that the instantaneous voltage of main chip is less than 4.5V. Check according to the following procedure: 13.4 Operation lamp flashes and Timer lamp off Is connector connection good? Repair the connector.
  • Page 39: Operation Lamp Off And Timer Lamp Flashes

    Service manual 13.6 Operation lamp off and Timer lamp flashes 13.7 Operation lamp on and Timer lamp flashes EEROM error, indoor PCB is defective. 13.8 Operation lamp flashes, Timer lamp flashes This is alarm signal when the main chip can’t detect over-zero signal. When such failure occurs, the main control board must have fault.
  • Page 40: Characteristic Of Temperature Sensor

    Service manual Characteristic of temperature sensor Temp.℃ Resistance KΩ Temp.℃ Resistance KΩ Temp.℃ Resistance KΩ 62.2756 14.6181 4.3874 58.7079 13.918 4.2126 56.3694 13.2631 4.0459 52.2438 12.6431 3.8867 49.3161 12.0561 3.7348 46.5725 11.5 3.5896 10.9731 3.451 41.5878 10.4736 3.3185 39.8239 3.1918 37.1988 9.5507 3.0707...

This manual is also suitable for:

Fsi-125hfd

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