AIR-TO-WATER HEAT PUMP INSTALLATION
86
(3). GRS-CQ12Pd/Na-M(O).GRS-CQ14Pd/Na-M(O).GRS-CQ16Pd/Na-M(O)
silk screen specification
L1
L2
L3
live wire input of power supply
N
Neutral line input of power supply
L
Reactor red inductive wire
U U-phase of compressor
V V-phase of compressor
W W-phase of compressor
DC_MOTOR1
DC fan
1 pin：strong power supply；3 pin：fan GND；4 pin：+15V；5
pin：control signal；6 pin：feedback signal；
DC_MOTOR2
DC fan
1 pin：strong power supply；3 pin：fan GND；4 pin：+15V；5
pin：control signal；6 pin：feedback signal；
4V1 4-way valve
HEAT electric heating tape
VA-1 e-heater of chassis
HPP high pressure switch
LPP low pressure switch
T-SENSOR2
1, 2hole：pipe temperature；3, 4hole：environment；5, 6hole：
exhaust
T－SENSOR3 1 hole:+3.3V 2 hole: detection: suction temperature sensor
CN66, CN67
communication cable 2 pin B，3 pin A
CN65
communication cable 1 pin earthed，2 pin B，3 pin A，4 pin+12
power supply
It can not be used for communication between outdoor unit and
indoor unit.
FA
pipe electric expansion valve
1-4 pin：driving impulse output；5 pin：+12V；
H-PRESS
signal input of pressure sensor
1 pin：GND；2 pin：signal input；3 pin：+5V
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