CTC Union GSi 600 Series, Installation And Maintenance Manual

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24 CTC GSi 600
6.1.1 Filling valve, heating circuit
Fit a filling valve between the cold water connection and the heating circuit’s
return flow.
6.1.2 Non return valve
Fit the non-return valve to the incoming cold water connection.
6.1.3 Shut-off valves
It is important to fit a shut-off valve (94) to the primary flow.
The supplied filter ball valve (95) must be fitted to the heating circuit’s return
flow.
6.1.4 Safety valve
The heat pump’s safety valve (2.5 bar) for the heating circuit must be fitted
in accordance with applicable regulations. Connect the waste pipe to the
waste system directly to the floor drain or, if the distance is more than two
metres, to a funnel. The waste pipe must slope towards the waste system,
be installed frost-free and left open to the atmosphere/without pressure.
6.1.5 Manometer – system pressure
Fit a manometer to the expansion pipe or the heating circuit’s return line.
!
NB: The waste pipe
must be fitted to the
waste system.
!
NB: It is important to
fit shut-off valves to
both the primary and
return flows.
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 with another heat source, e.g. an existing
boiler, the installations must have separate expansion vessels.
Position of expansion tank.