External Water Pump And Three-Way Valve - Gree Versati III GRS-CQ4.0PdG/NhH2-E Owner's Manual

SPLIT TYPE
When the ambient temperature is lower than -15°C, the highest leaving water temperature of the water tank is
50°C.

21 External Water Pump and Three-way Valve

When the internal water pump fails because of insufficient pump head or others, an external water pump is
required. See the wiring diagram as shown below for its wiring, of which 25, 26 are connected to the control lines,
10, 2 connected to the power lines, KM4 is the AC contactor.
When a three-way valve is necessary, please follow the wiring diagram as shown below for its wiring.
Air-to-water Heat Pump All in One Versati
XT2
10 2 25 26
1
0
Water pump (out)
XT2
21 20
3-way valve 1
53