25
CTC GSi 16
H
Maximum
height (H) (m)
Pre-pressure
(bar)
System
pressure
(bar)
Maximum volume
in the heating
circuit
(excl. product)
(L)
5
0.5
0.8
310
10
1.0
1.3
219
15
1.5
1.8
129
6.1.7
Expansion tank pre-pressure
The pre-pressure in the expansion tank is calculated according
to the height (H) between the highest-positioned radiator and the
expansion tank. The pre-pressure must be checked/set before
the system is filled with water. The system pressure must be set
0.3 bar higher than the pre-pressure in the expansion tank. For
example, a pre-pressure of 1.0 bar (5 mvp) means a maximum
permitted height difference of 10 m.
6.1.6
Connection of expansion tank (accessory)
The heat pump is best connected to a closed expansion vessel. The heat
pump is ready to be fitted to an 18 l closed expansion vessel, positioned
on top of the product. The expansion tank with the required hose and
connectors is available as an accessory.
If you use an open system, the distance between the expansion vessel
and the highest placed radiator must not be below 2.5 m in order to avoid
introducing oxygen into the system.
If the heat pump is connected together with another heat source, e.g. an
existing boiler, the installations must have separate expansion vessels.
Position of expansion tank.
The table assumes installation with the expansion tank
included in the CTC Installation Kit GSi accessory.
Summary of Contents for GSi 16
Page 6: ...6 CTC GSi 16...
Page 48: ...48 CTC GSi 16 8 13 Tank schematic diagram A2...
Page 49: ...49 CTC GSi 16...
Page 50: ...50 CTC GSi 16 8 14 HP cooling module schematic diagram A5...
Page 51: ...51 CTC GSi 16...
Page 53: ...53 CTC GSi 16...
Page 54: ...54 CTC GSi 16 M GF B25 B26 Y21 B5 G20 B24 B23 B27 B28 G11 G5 B102 B18...
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