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F. Unit circuit diagram
The following is a unit circuit diagram (for user's reference); the unit practical connection should be as the
circuit /wiring diagram on the machine.
1). Heat pump WITH auxiliary electric heater:
WATER TEMP.SENSOR
OPERATION PANEL
时钟
开/关
定时
模式
Transformer
C
COMPRESSOR
S
R
L
N
POWER SUPPLY
2
3
BLACK/ 12V
RED/ 220V
L
1
2
YELLOW/GREEN
Comp
Elect
Valve
Fan
ELECTRIC.HEATER
YELLOW/GREEN
13
COIL TEMP.SENSOR
AMBIENT TEMP.SENSOR
EXHAUST TEMP.SENSOR
RETURN GAS TEMP. SENSOR
5
Electronic expansion valve
ELECTRIC HEATER PROTECTOR
PRESURE PROTECTOR
LOW
HI
YELLOW/GREEN
4-WAY VALVE
FAN MOTOR
V.3
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