Air-to-water Heat Pump Split Versati
25
SPLIT TYPE
7.5 Precautions on installation of indoor unit
(1) Indoor unit shall be vertically mounted on the wall of the room with expansion bolt.
(2) Keep the indoor unit away from heat sources like heat sink and so on in the room as much as possible.
(3) Keep the indoor unit as close as possible to outdoor unit. Level distance between connection pipes cannot
exceed 30m (8.0~16kW) and vertical distance cannot exceed 15m (8.0~16kW).
7.6 Water volume and pump capacity (with pump)
Note
During operation, the water pump will adjust its output based on the actual load.
7.7 Water volume and expansion vessel pressure
Pre-pressure in expension vessel(Bar)
Maximum total water volume(liter)
2.5
2.0
1.5
1.0
0.5
0.0
0
50
100
150
200
250
300
350
400
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.
