MONOBLOC TYPE
(4) Selection of the AC Contactor
The AC contactors have not equipped for the unit before delivery. Therefore, the AC contactors for the auxiliary
electric heater 1, auxiliary electric heater 2 and water tank heater should be installed on site. See the table below
for reference technical data.
Name
Frequency
AC contactor
See figures below for more wiring instructions:
GRS-CQ4.0Pd/NhG-K, GRS-CQ6.0Pd/NhG-K,GRS-CQ8.0Pd/NhG-K,GRS-CQ10Pd/NhG-K, GRS-CQ12Pd/
NhG-K, GRS-CQ14Pd/NhG-K, GRS-CQ16Pd/NhG-K
GRS-CQ10Pd/NhG-M, GRS-CQ12Pd/NhG-M, GRS-CQ14Pd/NhG-M, GRS-CQ16Pd/NhG-M
Case 1
380-415V,3N~ 50HZ
L1
L2
L3
A11
5
3
A2
KM1
2
6
4
Optional E-heater 1
Case 2
380-415V,3N~ 50HZ
L1
L2
L3
1
3
A1
5
KM1
2
6
4
A2
Optional E-heater 1
Rated
Rated coil voltage
50Hz
220V
380-415V,3N~ 50HZ
L1
L2
XT3
A1 1
5
12 13 14
KM 2
2
6
380-415V,3N~ 50HZ
L1
L2
A1
1
5
12 13 14
KM 2
2
6
Rated working voltage for
the main circuit
220V
L3
XT3
3
A2
15 16 17
4
Optional E-heater 2
L3
3
15 16 17
4
A2
Optional E-heater 2
51
Air-to-water Heat Pump
Rated working current for the
main circuit
25A
380-415V,3N~ 50HZ
L1
L2
L3
XT3
A1 1
A2
5
3
18 19 20
KM 3
2
6
4
Water Tank E-heater
380-415V,3N~ 50HZ
L1
L2
L3
A1
1
5
3
18 19
KM3
2
6
4
A2
Water Tank E-heater