Gree Versati III GRS-CQ4.0Pd/NhG-K Owner's Manual page 46

Air-to-water Heat Pump
(3) GRS-CQ10Pd/NhG-M, GRS-CQ12Pd/NhG-M, GRS-CQ14Pd/NhG-M, GRS-CQ16Pd/NhG-M
Power
L1
L2
L3
N
PE
Specification：
1. The wires in the imaninal frames are
connected by the consumer.
2. If consumer need EH4 ，Please connect
Terminal block(XT2) 1、2 with EH3 Together.
3.KM1、KM2 is Auxiliary electric heater AC
contactor Coil. If consumer need Auxiliary
electric heater, Please connect Terminal
block(XT3) 12、13 、14、15、16、17.
220VAC
4.KM3 is Water tank Auxiliary electric heater
AC contactor Coil. If consumer need Water tank
Auxiliary electric heater , Please connect
220VAC
Terminal block(XT3) 18、19 、20.
220VAC
Electric component position map
thermal
L AP2
L2 L3
XT5
AP4 AP1
Therm
AP3
L1
220VAC
XT3 XT4
XT2 Pump Control
XT1
signal (OUT)
17.2.3 Terminal Board
(1) GRS-CQ4.0Pd/NhG-K,
Terminal board XT3
12 13 14 15 16 17 18 19 20 21 22
220VAC KM1-2 220VAC KM2-2 220VAC KM3-2
Coil
Terminal board XT1
L N
Power Supply
XT1
L4
1
L1
L4
2
L2
L4
3
L3
L4
4
N
L5
5
XT5 XT5
PE
2 1
7 6
N AC_L
XT2
EH3 9 8
1 X25 X3
10
EH4
2
L1(OFF) 11 RT1
3 X28
2-way L2(ON) 12
4
X27
valve1
N 13 RT2
5
L1(OFF) 14 CN15
6 X32
3-way L2(ON) 15 RT3
7 X31
valve1
16
N
8
L1(OFF) 17
9 X34
3-way L2(ON) 18
10
X33
19
valve2 RT4
N
11
CN16
70 RT5
XT3 71
20
A2 A1 12 23 X21
KM1
AP1
21
Coil
13
CN21
22 2 RT6
KM1-2 14
CN8
24
A2 A1 27
X22
KM2 15 CN1
Coil 25
16
CN22
26 RT7
KM2-2 17
CN9
A2 A1 18 31 28 X20
KM3
29
Coil
19 SW
30 CN23
KM3-2 20
CN25
32
L 33
Other 21
X23
N
22
3
CN3
XT4
34
HEAT
23
COOL 35
24 4
L8
CN20
N 36
ostat 25 CN4
L(220VAC) 37
26
PE
Gate controller
38
27
39 CN24
28
BN
PUMP
CN18 BU
40 ~
29
41 CN19
30
GRS-CQ6.0Pd/NhG-K,
Coil Coil
Terminal board XT2
. 1 2 3 4
2-way valve1
X1(AC-L1)
X5(L1-F)
X2(AC-L2) X6(L2-F)
X3(AC-L3) X7(L3-F)
AP3 XT5
49
X4(N) X11(L1) 1
XT5
50
46
X8(N-F)
X9 2
PE
RD
L
L1
BK
48
RT8
20K
L6
N
RT9 20K
L6
T-SENSOR1
AC_L
RT10
20K
PE
51
PWR1
RT11 52
20K 15K
RT12 T-SENSOR2
20K 50K
53
COM-ESPE2
RT13
20K 20K
5
p
HP
64
20K 4
FA
HPP
65
3
2
AP2
50K 1
p
LP1
66
LPP
67 5
FB 4
3
p
LP2
68
15K 2
CN2
69 1
EH1
AP
VA-1
50K
H-PRESS
SP
EH2
HEAT
YV1
4V
DC-MOTOR1
42
CN7
Display
M
board
XT1
L1
N
Earthing wire is available for iron-
clad motor, while unavailable for
YEGN
plastic-clad motor.
PE
GRS-CQ8.0Pd/NhG-K
Terminal board XT4
23 24 25 26 27 28 29 30
Thermostat
Other
thermal
5 6 7 8 9 10 11
3-way valve1 3-way valve2
42
SPLIT TYPE
CODE NAME
43
X1
AP Main Board Only For RT6
44
AP1 Indoor unit Main Board
X2
45 AP2 Outdoor unit Main Board
X3
AP3 Filter Board
54
AP4 Drive Board
X4
COMP Compressor
55
X5
EH1 Bottom band heater
56
X6
EH2 Compressor band heater
EH3 Plate heat exchanger anti-freezing
AP4
L2 L3
EH4 expansion tank heater
EKV1 Electric expansion valve coil 1
57
X9
EKV2 Electric expansion valve coil 2
58
X8 HP High pressure switch
59
KM1 Optional electric heater AC contactor 1
X7
KM2 Optional electric heater AC contactor 2
KM3 Water tank electric heater AC contactor
PWR
L Electrical Inductance
L1～L3 Inductor
4
L4～L8 Magnetic ring
COMM
LP1 Low pressure switch for heating
LP2 Low pressure switch for cooling
M Motor
EKV1
PUMP Indoor unit pump
RT1 Water-in temp.sensor of the whole unit
RT2 Water-out temp.sensor of the whole unit
60 61 62
RT3 Liquid pipe temp.sensor
EKV2
RT4 Gas pipe temp.sensor
L7 L7 L7
RT5 Optional water temp.sensor
RT6 Remote room temp.sensor
U V W
RT7 Water-tank temp.sensor
COMP RT8 Inlet temp.sensor of economizer
3～
RT9 Outlet temp.sensor of economizer
63
RT10 Defrosting temp.sensor
PE
RT11 Outdoor temp.sensor
RT12 Discharged temp.sensor
RT13 Suction temp.sensor
SP High pressure sensor
SW Waterflow switch
XT1 Power Terminal block
XT2 Terminal block(1~11)
XT3 Terminal block(12~22)
XT4 Terminal block(23~30)
XT5 Terminal block(1~2)
PE
YV1 4-way valve coil
Pump Control
Gate-
controller signal (OUT)