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Summary of Contents for Fisher FS-75HF
- Page 1 Cover FS-75HF; FS-95HF; FS-125HF; FS-185HF FI-SM-FS75-185HF20060620...
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Page 2: Table Of Contents
Re-air purging (Re-installation) ....................14 Balance refrigerant of the 2-way, 3-way valves................ 15 Evacuation ..........................16 Gas charging ........................... 17 Pressure table ......................18 FS-75HF ..........................18 FS-95HF ..........................18 FS-125HF ..........................19 FS-185HF ..........................19 Capacity table ......................20 FS-75HF .......................... - Page 3 Content 10.5 Cooling mode........................... 24 10.6 Dehumidifying mode ........................ 25 10.7 Heating mode .......................... 26 10.8 Defrosting mode (available for heating mode) ................. 27 10.9 Auto mode ..........................28 10.10 Force cooling function......................28 10.11 Sleep mode..........................29 10.12 Auto restart function......................... 29 10.13 Turbo mode..........................
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Page 5: Precaution
Service manual 1. Precaution 1.1 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. 1.2 Warning Installation Do not use a defective or underrated circuit breaker. - Page 6 Service manual unit is so equipped.) Operational There is risk of physical injury, electric shock, or product failure. Do not expose the skin directly to cool air for long When the product is soaked (flooded or submerged), periods of time. (Do not sit in the draft). contact an Authorized service center.
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Page 7: Function
Service manual 2. 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. Starting temperature control Indoor fan is delayed for 5 sec at the starting. Time Delay Safety control Restarting is for approx. - 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.
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Page 9: Dimension
Service manual 3. Dimension 3.1 Indoor unit Dimension GROSS Mode WEIGHT WEIGHT 3.2 Outdoor unit Dimension GROSS Mode WEIGHT WEIGHT 28.5 30.5... -
Page 10: Specification
Service manual 4. Specification Model FS-75HF FS-95HF FS-125HF FS-185HF Power supply Ph-V-Hz 1, 220-240V~, 50Hz 1, 220-240V~, 50Hz 1, 220-240V~, 50Hz 1, 220-240V~,50Hz Capacity 2050 2650 3500 5300 Input 1090 1720 Cooling Rated current 3.21 3.23 3.21 3.08 Capacity 2500... -
Page 11: Refrigerant Cycle Diagram
Service manual 5. Refrigerant cycle diagram Heat pump mode... -
Page 12: Schematic Diagram And Wiring Diagram
Service manual 6. Schematic diagram and Wiring diagram 6.1 Schematic diagram... -
Page 13: Wiring Diagram
Service manual 6.2 Wiring diagram 6.2.1 FS-75HF, FS-95HF, FS-125HF... - Page 14 Service manual 6.2.2 FS-185HF INDOOR UNIT OUTDOOR UNIT BLUE BLUE Y&G 4-WAY BLACK OVERLOAD RELAY BLACK BLACK COMPRESSOR BLUE MOTOR WHITE BLUE COMPRESSOR CAPACITOR FAN CAPACITOR...
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Page 15: Installation Details
Service manual 7. Installation details Wrench torque sheet for installation Outside diameter Torque inch Kg.m φ6.35 φ9.52 φ12.7 Connecting the cables The power cord of connect should be selected according to the following specifications sheet. Grade Unit Pipe length and the elevation Pipe size Capacity Standard... -
Page 16: 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 17: 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 18: 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 19: 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 20: 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 21: 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 22: Pressure Table
8. 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. 8.1 FS-75HF Outdoor temperature (Dry bulb temp) Cooling mode Indoor Conditions Pressure 25ºC 30ºC... -
Page 23: Fs-125Hf
Service manual FS-125HF Cooling mode Outdoor temperature (Dry bulb temp) Indoor Conditions Pressure 25ºC 30ºC 35ºC 40ºC 45ºC 50ºC 21ºC D15ºC W Pressure( kg/cm 24ºC D17ºC W Pressure( kg/cm 10.0 10.4 27ºC D19ºC W Pressure( kg/cm 10.3 10.9 32ºC D23ºC W Pressure( kg/cm 10.4 10.8... -
Page 24: Capacity Table
Service manual 9. Capacity table 9.1 FS-75HF SUMMER OUTDOOR TEMPERATURE DRY Indoor Conditions 25ºC 30ºC 35ºC 40ºC 45ºC 50ºC Total capacity kW 2.04 1.94 1.61 1.53 1.41 21ºC D Sensitive capacity kW 1.52 1.41 1.39 1.32 1.19 1.07 15ºC W Input kW. -
Page 25: Fs-125Hf
Service manual WINTER OUTDOOR CONDITIONS 12ºC D 7ºC D 4ºC D 0ºC D -4ºC D -7ºC D Indoor Conditions 11ºC W 6ºC W 3ºC W -1ºC W -6ºC W -8ºC W Capacity kW 3.75 3.38 3.02 1.97 1.59 1.52 15ºC Input kW. -
Page 26: Fs-185Hf
Service manual 9.4 FS-185HF SUMMER OUTDOOR TEMPERATURE DRY Indoor Conditions 25ºC 30ºC 35ºC 40ºC 45ºC 50ºC Total capacity kW 4.914 4.781 4.658 4.232 4.119 3.932 21ºC D Sensitive capacity kW 3.851 3.686 3.620 3.431 3.315 3.131 15ºC W Input kW. 1.335 1.515 1.623... -
Page 27: Electronic Function
Service manual 10. Electronic function 10.1 Proper symbols and their meaning TA: Indoor ambient temperature TE: Indoor evaporator temperature TS: Setting temperature through the remote controller : Self-protection amp of compressor, continue three seconds until turns off the compressor. 3sec : Self-protection amp of compressor, continue five minutes until turns off the compressor. -
Page 28: Fan-Only Mode
Service manual If compressor turns off for continuously 4 times due to current protection in 5 minutes from Compressor On, the unit stops and LED displays failure information and can’t returns to normal operation automatically. 10.4 Fan-only mode Fan speed is high/mid/low/ Auto 10.5 Cooling mode The 4-way valve is closed at cooling mode. -
Page 29: Dehumidifying Mode
Service manual Auto fan at cooling mode: High fan Mid. fan Room temp. down Room temp. up Low fan T-Ts Anti-freezing control to indoor evaporator at cooling mode (T: evaporator temp.) 10.6 Dehumidifying mode 10.6.1 The 4-way valve is off in dehumidifying mode 10.6.2 Compressor and Indoor Fan actions in dehumidifying mode Indoor Block... -
Page 30: Heating Mode
Service manual 10.6.4 At dehumidifying mode, the anti-freezing function of the indoor heat exchanger is the same as that of cooling mode. 10.6.5 At dehumidifying mode, the action of fans of indoor is the same as that of air-only mode. 10.7 Heating mode 10.7.1 Generally, the 4-way valve is open in heating mode, but it is closed in defrosting mode. -
Page 31: Defrosting Mode (Available For Heating Mode)
Service manual Low fan Room temp. down Room temp. up Med fan T-Ts 10.7.6 Indoor evaporator high-temperature protection at heating mode (T=indoor exchanger temp.) Compressor off Fan off Compressor on Fan off T temp. down T temp. up Compressor on Fan on 10.7.7 The louver opens to Standard Angle ANGLHEAT when power is on for the first time. -
Page 32: Auto Mode
Service manual 10.8.3 Ending condition of defrosting If one of following conditions is satisfied, end the defrost and turn into heating mode: A. The defrost time has reached to 7.5 or 10 minutes. B. The compressor current has reached to I or above, I differs in different models DEFROST... -
Page 33: Sleep Mode
Service manual mode is set as low, the A/C operates at the DRY mode with a set temp. of 24℃ 10.10.3 All protections of remote control cooling are available at forced cooling operation 10.10.4 Forced Auto function Select forced auto function with the forced auto button or the switch. In forced auto status the A/C operates at remote control mode with a set temp. -
Page 34: Troubleshooting
Service manual 11. Troubleshooting 11.1 Display board Signal receptor AU TO indicator Thi s indicator illuminates whe n the air conditioner i s in AUTO operation. DE FROST indicator (F or Cooling & H eating mo dels only) Thi s indicator illuminates whe n the air conditioner starts defrostin g automati cally or when the warm air control fea ture is activated in he ating oper ation. -
Page 35: Diagnostic Chart
Service manual 11.3 Diagnostic chart After energizing, no indicator is lighted and the air conditioner can’t be operated. -
Page 36: Resetting Phenomenon Often Occurs During Operation
Service manual 11.4 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: 11.5 Operation lamp flashes and Timer lamp off. -
Page 37: Operation Lamp Off And Timer Lamp Flashes
Service manual 11.7 Operation lamp off and Timer lamp flashes Operation lamp off and Timer lamp flashes After changing the main control board, check if the failure realease. Indoor PCB is defective. The voltage of power supply is too low (less than 187V). Outdoor unit fault (such as the compressor). -
Page 38: Characteristic Of Temperature Sensor
Service manual 12. 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...
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