Gree FG20/BNa-M, Service Manual

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1.4 Installation Clearance Data ........................................................................................................ 44
1.5 Drain Piping Work ...................................................................................................................... 44
2 OUTDOOR UNIT INSTALLATION .......................................................................... 44
2.1 Before Installation ......................................................................................................................44
2.2 Installation Site ........................................................................................................................... 45
2.3 Dimension Data ..........................................................................................................................45
2.4 Installation Clearance Data ........................................................................................................ 46
3 REFRIGERATION PIPING WORK ......................................................................... 47
3.1 Refrigeration Piping Work Procedures ....................................................................................... 47
3.2 Caution in Connecting Pipes ....................................................................................................... 47
3.3 Specification of Connection Pipe
............................................................................................... 47
4 ELECTRIC WIRING WORK .................................................................................... 48
4.1 Wiring Principle ..........................................................................................................................48
4.2 Electric Wiring Design ................................................................................................................ 48
4.3 Specification of Power Supply Wire and Air Switch
................................................................... 49
MAINTENANCE ........................................................................................... 51
1 TROUBLE TABLE .................................................................................................... 51
2 FLOW CHART OF TROUBLESHOOTING .............................................................. 52
2.1 High Pressure Protection ............................................................................................................ 52
2.2 Low Pressure Protection ............................................................................................................. 53
2.3 Discharge protection ................................................................................................................... 54
2.4 Overcurrent Protection ............................................................................................................... 54
2.5 Communication Malfunction ....................................................................................................... 55
2.6 Temperature sensor malfunction ................................................................................................ 55
2.7 Indoor Fan Overloading Protection ............................................................................................. 56
2.8 F0 Failure of Indoor Room Sensor at Air Intake .......................................................................... 56
2.9 F1 Failure of Evaporator Temp. Sensor ...................................................................................... 57
3 WIRING DIADRAM .................................................................................................. 58
4 DISASSEMBLY AND ASSEMBLY PROCEDURE OF MAIN PARTS ...................... 62
5 EXPLODED VIEWS AND PART LIST ..................................................................... 64
5.1 Indoor Unit ..................................................................................................................................64
5.2 Outdoor Unit ................................................................................................................................72