Fujitsu ARTG60LHTA - Main PCB Removal; Inverter, PFC, Filter and Capacitor PCB Removal

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Table of Contents

Table of Contents2
Description of each Control Operation5
Cooling Capacity Control6
Cooling Operation6
- Heating Capacity Control7
- Compressor Frequency Range7
Heating Operation7
- Indoor Unit Control8
- Compressor Control Based on Room Temperature8
- Indoor Fan Control for AC Indoor Unit8
Dry Operation8
Operation Mode Selection Table9
Auto Changeover Operation9
- Auto Changeover Operation Flow Chart10
- Fan Speed11
Indoor Fan Control11
- Fan Operation13
- Cooling Operation13
- Heating Operation13
- Cool Air Prevention Control14
- Duct Type14
- High Static Duct Type14
- Outdoor Fan Motor15
- Fan Speed of the Outdoor Unit15
Outdoor Fan Control15
- Swing Operation16
- Vertical Louver Control16
Louver Control16
- Horizontal Louver Control17
- Air Direction Range17
- Operation Frequency Range22
- Operation Frequency Control at Start up22
Compressor Control22
Timer Operation Control23
- Wireless Remote Controller23
- Wired Remote Controller25
Pulse Range of EEV27
Electronic Expansion Valve Control27
Test Operation Control27
Prevent to Restart for 3 Minutes27
4-Way Valve Extension Select28
Auto Restart28
Manual Auto Operation28
Pump down29
Condition of the Defrost Operation Completion30
Compressor Preheating30
Defrost Operation Control30
- Defrost Flow Chart31
- Off Defrost Operation Condition32
- Off Defrost End Condition32
- OFF Defrost Flow Chart32
Off Defrost Operation Control32
- 10C Heat Operation33
- Discharge Gas Temperature over Rise Prevention Control33
Economy Operation33
Various Protections33
- Low Pressure Protection Control34
- Pressure over Rise Protection34
- Anti Freezing Protection34
- Heating Overload Protection35
- High Temperature Release Control35
- Current Release Control35
- Compressor Stop Control36
Forced Cooling Operation36
Fresh Air Control36
External Electrical Heater Control36
- During Heating / Fan Mode / Stop Operation37
- Float Switch Turns off Less than 3 Minutes37
- During Cooling / Dry Mode37
Drain Pump Operation37
Low Noise Operation38
Peak Cut Operation38
Description of Display Unit39
- Layout of Display Unit39
- Display Mode40
- Error History Mode43
  - Procedure for History Mode43
  - Error Code43
- Error Check Mode44
Procedure for Error Check Mode44
Demand Response Operation44
Error Display46
- Indoor Unit and Wired Remote Controller Display46
- Error Code History Display47
- Wired Remote Controller Display47
- Reset the Power and Operate48
- Check Connection48
- Check the Voltage of Power Supply48
Trouble Shooting with Error Code48
Trouble Shooting with no Error Code79
Service Parts Information84
- Inverter Compressor85
- Outdoor Unit Electronic Expansion Valve86
- Indoor Unit Fan Motor87
- Outdoor Unit Fan Motor88
- Disassembly Process90
- SERVICE PANEL Removal90
- INSULATION SHEET Removal90
- Main PCB Removal91
- Inverter, PFC, Filter and Capacitor PCB Removal91
- Filter PCB Removal92
- PFC PCB Removal92
- Inverter PCB Removal92
- CAPACITOR PCB Removal93
- Fan Motor Removal94
- Top Panel Removal95
- Pipe Cover Front Removal95
- Right Panel Removal95
- Reactor Removal96
- Thermistor Removal96
- Solenoid Coil Removal96
- EEV Coil Removal97
- Pressure Sensor Removal97
- Compressor Removal98
- Precautions for Exchange of Refrigerant-Cycle-Parts100

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