Plug wire of compressor and fan
Supplying plug wire of computer board
Ambient temperature sensor
CN3
CN2
Display board
Signal wire of
CN4
display board
Battery switch
Signal wire of
Battery line
USB board
CN1
USB
board
USB port
CN2
CN3
USB power cord
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Displaying sensor
Inner temperature sensor
Door switch
Defrosting sensor
CN5
CN4
CN18
CN8
CN14
CN7
Main control panel
CN13
CN15
CN1
CN12
Plug wire for
CN3
CN6
backup system
Compressor and condenser fan controlled relay
1
4
6
5
Remote alarm plug wire
Solenoid valve & plug wire of condensate fan
Solenoid valve
Condenser fan
Evaporating fan
Compressor butted line
Compressor line
Recorder
(optional)
Power switch
BN
1
2
BU
3
Earth wire
Compressor
Power cord
L
N
E