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Schematic Diagram
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No. Interface name Instruction
1
Interface of compressor
The corresponding three wires are: yellow-COMP-U,
blue-COMP-V, red-COMP-W
2 Overload protector of
compressor
The corresponding two-core white wire connects the
overload protector SAT
3
Temperature sensor
Tube temperature (20k@25oC); outdoor
ambient temperature(15k@25oC), discharge
temperature(50 k@25oC)
4
Electron expansion valve
It’s used for connecting the 5-core electron expansion
valve EKV
5
Fan HALL interface
It’s used for connecting DC fan’s HALL sensor (there’s no
interface for AC motor)
6 Outdoor fan It’s used for connecting the FAN-MOTOR
7 Four-way valve It’s used for connecting four-way-valve YV
8 Communication interface
for indoor unit
Communication wire of indoor and outdoor units, which is
connected to the indoor unit
9 Live wire Power-Source “L” line
10 Earthing wire Connect to Earth
11 Neutral wire Power-Source “N’line
12 Interface 1of reactor Connect to one terminal of inductor (Whilt)
13 PFC capacitor interface Connect to C2(Refer to electric circuit diagram)
14 Interface 2 of reactor Connect to one terminal of inductor (orange)
No.
Circuit module
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