15
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
without
auxiliary electric heater:
2
1
Comp
Fan
Valve
Elect
R
S
C
开/关
时钟
定时
模式
BLACK/
12V
RED/
220V
5
COMPRESSOR
LOW
HI
B
X
S
N
LOW-PRESURE PROTECTOR
HI-PRESURE PROTECTOR
RETURN GAS TEMP. SENSOR
EXHAUST TEMP.SENSOR
COIL TEMP.SENSOR
AMBIENT TEMP.SENSOR
Electronic expansion valve
YELLOW/GREEN
FAN MOTOR
4-WAY VALVE
OPERATION PANEL
WATER TEMP.SENSOR
Transformer
YELLOW/GREEN
POWER SUPPLY
L
2
3
N
L
