83
Air to Water Heat Pump
Service Manual- Versati Series
JOTUBMMBUJPO
GRS-CQ12Pd/Na-M(I), GRS-CQ14Pd/Na-M(I), GRS-CQ16Pd/Na-M(I):
PE
PE
PE
PE
2. The wires in broken line should be
connected by the client.
3 Power supply for thermostat: If it
is 230V AC,please connect the
thermostat to the terminal block(xt3)
21.22.23.24;If it is 24V AC, please
connect the termostat to the terminal
block(xt3) 25.26.27.28.
Specification:
1. If the gate control function is required,
pull out the leading wire 50 between
terminal 19 and 20 on the terminal block
and then install the gate-controller.
1920
50
20 19
XT2 XT2
XT3
XT1
POWER
AP
2-way
valve1
2-way
valve2
3-way
valve1
3-way
valve2
OUTDOOR
UNIT
AP1
Indoor Unit
PC
Long-distance
Monitor PC
Display
board
Communication line
Error
indicating lamp
Running
indicating lamp
GRS-CQ16Pd/Na-H(I)
PC
Long-distance
Monitor PC
Indoor Unit
Error
indicating lamp
Running
indicating lamp
AP1
Communication line
OUTDOOR
UNIT
3-way
valve2
3-way
valve1
2-way
valve2
2-way
valve1
AP
POWER
Display
board
XT1
XT3
XT2XT2
50
21 22
Specification:
1. If the gate control function is required,
pull out the leading wire 50 between
terminal 21 and 22 on the terminal block
and then install the gate-controller.
2. The wires in broken line should be
connected by the client.
3 Power supply for thermostat: If it
is 230V AC,please connect the
thermostat to the terminal block(xt3)
23.24.25.26;If it is 24V AC, please
connect the termostat to the terminal
block(xt3) 27.28.29.30.
PE
PE
PE
PE
21 22
(other thermal system)
AC contactor
water pump
(heat pump)
AC contactor
water pump
water pump
AC contactor
(other thermal system)
(heat pump)
AC contactor
water pump