Content
2
Content
1.
Precaution 2
1.1
Safety Precaution 2
1.2
Warning 2
2.
Function 3
3.
Dimension 5
3.1
Indoor unit 5
3.2
Outdoor unit 5
4.
Refrigerant cycle diagram 6
5.
Operation limits 7
5.1
Cooling operation 7
5.2
Heating operation 7
6.
Wiring diagram 8
7.
Installation details 12
7.1
Wrench torque sheet for installation 12
7.2
Connecting the cables 12
7.3 Pipe length and the elevation 12
7.4
Air purging of the piping and indoor unit 13
7.5
Pumping down (Re-installation) 14
7.6
Re-air purging (Re-installation) 15
7.7
Balance refrigerant of the 2-way, 3-way valves 16
7.8
Evacuation 17
7.9
Gas charging 18
8.
Electronic function 19
9.
Model and Parameters 26
10.
Troubleshooting 27
10.1 Display board 27
10.2 Troubleshooting 27
10.3 Diagnostic chart 28
10.4 Resetting phenomenon often occurs during operation. 29
10.5 Over current protection of the compressor occurs 4 times 28
10.6 Temperature sensor error. 29
10.7 Outdoor unit protects 29
10.8 EEROM error 29
10.9 Indoor unit communication error. 29
11.
Characteristic of temperature sensor 30
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