7.8 Electrical Wiring Work for Indoor Unit .............................................................................120
8 INSTALLATION OF DRAINAGE PIPELINE ............................................................121
8.1 Material Quality Requirements for Condensate Pipe ........................................................121
8.2 Key Points for Condensate Pipe Installation......................................................................121
9 Installation of Protective Layer on Connection Pipe....................................................125
MAINTENANCE .................................................................................................... 127
1 Testing Board Introduction .............................................................................................127
1.1 Compose of Testing Board.................................................................................................127
1.2 Instruction of Function and Data Section ..........................................................................127
1.3 Process Control Setting......................................................................................................128
2 Troubleshooting................................................................................................................ 130
2.1 Check before Contacting Maintenance Serviceman ..........................................................131
2.2 Problem Handling ..............................................................................................................131
2.3 Error description ................................................................................................................132
3 FLOW CHART OF TROUBLESHOOTING................................................................134
3.1 Malfunction display: High Pressure Protection ................................................................. 135
3.2 Malfunction display: Low Pressure Protection..................................................................135
3.3 Malfunction display: Discharge temperature protection.................................................... 137
3.4 Malfunction display: Current protection............................................................................ 137
3.5 Malfunction display: Communication error.......................................................................138
3.6 Malfunction display: Indoor unit water full protection......................................................139
3.7 Malfunction display: Temperature sensor error.................................................................139
3.8 Malfunction display: High/Low pressure sensor error ......................................................140
4 POWER DISTRIBUTION..............................................................................................141
4.1 Diagram of Power Distribution.......................................................................................... 141
4.2 Wiring diagram ..................................................................................................................142
5 THE RESISTANCES OF COMMON TEMPERATURE SENSORS.........................150
5.1 15 KΩ.................................................................................................................................150
5.2 20 KΩ.................................................................................................................................151
5.3 50 KΩ.................................................................................................................................152
6 DISASSEMBLY AND ASSEMBLY PROCEDURE OF MAIN PARTS ..................... 155
6.1 Outdoor Unit ......................................................................................................................155
6.2 Indoor unit..........................................................................................................................160
7 EXPLODED VIEWS AND PART LIST ........................................................................173
7.1 Outdoor unit .......................................................................................................................173
7.2 Indoor unit..........................................................................................................................176
7.3 BU Module.........................................................................................................................210
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