AIR-TO-WATER HEAT PUMP INSTALLATION
84
2.2 PCB Outline
(1). GRS-CQ6.0Pd/Na-K(O).GRS-CQ8.0Pd/Na-K(O).GRS-CQ10Pd/Na-K(O)
Silk Screen Specification
AC-L Live wire input of power supply, red
N Neutral wire input of power supply, white
E1 Ground wire, yellow green
L2-2 PFC blue inductive wire
L1-1 PFC brown inductive wire
L2-1 PFC yellow inductive wire
L1-2 PFC white 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;
4V 4V1 4-way valve
HEAT Electric heating tape
VA-1 E-heater of chassis
HPP High pressure switch
LPP Low pressure switch
OVC-COMP Overload protection of compressor
T-SENSOR2 1, 2 hole:pipe temperature;3, 4 hole:environment;5, 6 hole:exhaust
T-
SENSOR3
1 hole: +3.3V 2 hole: detection ; suction temperature sensor
CN66.CN67 Communication cable 2 pin B,3pinA
CN65
Communication cable: 1 pin earthed,2 pin B,3 pin A,4 pin+12power 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