6
4. Main control board (The picture is for reference only)
1.Power L
2.Power N
3.Preliminary charging relay (rectifier bridge input port 1)
4.Input rectifier bridge line (rectifier bridge input port 2)
5.5A fuse
6.
To IPDU
7.
To PFC
8.
Solenoid valve (Reserve)
9.
Electric heater of plate heat exchanger
10.Electric heater of compressor
11.Pump
12.Electric heater of exhaust valve
13.Electric heater of water flow switch
14.4-way valve
15.Additional pump/Remote alarm port
16.Transformer input
4.4.2 10~12kW (1-phase)
Remove the inspection panel by unscrewing the five screws. The
electric control box is located inside the unit at the top of the technical
components.
17.Electronic expansion valve
18.DC fan power supply port
19.DC fan port
20.Remote control port
21.Force cooling switch
22.Parameter checking switch
23.Tin/Tout/Tb1 temperature sensor
24.Discharge temperature sensor (Tp)
25.1 Outlet of outdoor heat exchanger temperature sensor (T3)
25.2 Ambient temperature sensor(T4)
26.1 Low pressure switch
26.2 High pressure switch
27.Operation and display panel port
28.Water flow switch
29.Transformer output
30.Wired controller port
1. Use grommet A for the electrical power cable and grommet B
for the other external wires.
(The picture below shows the position of the diagram, please
participate in the concrete photos)
②
①
①
Main control board
②
PFC&IPM module board
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