Water Volume And Pump Capacity (With Pump); Water Volume And Expansion Vessel Pressure - Gree Versati III GRS-CQ8.0Pd/NhH-M Owner's Manual

SPLIT TYPE
(3) Keep the indoor unit as close as possible to outdoor unit. Level distance between connection pipes cannot
exceed 25m (8.0~10kW) and vertical distance cannot exceed 15m (4~10kW).

7.6 Water volume and pump capacity (with pump)

Note
See the curve above for the maximum external static pressure. The water pump is of variable frequency. And
during operation, the water pump will adjust its output based on the actual load.

7.7 Water volume and expansion vessel pressure

Notes
(a) The expansion vessel is 10 liter and 1bar pre-pressurized;
(b) Total water volume of 280 liter is default; if total water is changed because of installation condition, the pre-
pressure should be adjusted to secure proper operation. If the indoor unit is located at the highest position,
adjustment is not required;
(c) Minimum total water volume is 20 liter;
(d) To adjust pre-pressure, use nitrogen gas by certificated installer.
Versati III Split Type
2.5
2.0
1.5
1.0
0.5
0.0
0 50 100 150
Maximum total water volume(liter)
Air-to-water Heat Pump Split Versati
Water Flow
200 250 300 350
21
400