Installation - Wolf CGB-75 Assembly And Operating Instructions Manual

Heating circuit connection set
We recommend you connect the heating system with the aid
of a heating circuit connection set.
Connection set comprising: Connection to the appliance with
flat gasket, connection to heating flow/return with ball valves
1" female thread.
Note:
Provide a BDF valve at the lowest system point.
Safety equipment
The CGB-75 and CGB-100 have not been fitted with an
expansion vessel at the factory. This must be fitted externally
(available from the Wolf accessories range). Ensure the
expansion vessel is correctly sized.
There must be no shut-off valve between
the expansion vessel and the condensing
boiler, otherwise the pressure build-up would
permanently damage the boiler during heating.
There is a risk of system components rupturing,
giving rise to a risk of scalding.
Exceptions are cap valves upstream of the expansion vessel.
The pump or fitting assembly includes a 3 bar safety valve
(6 bar safety valve is available as an accessory). Route the
blow-off line into a drain funnel. The minimum system pressure
is 1.0 bar. The boilers are approved exclusively for sealed
systems of up to 6 bar. The maximum flow temperature is
factory-set to 80 °C and may be adjusted to 90 °C if required.
3062555_201507

Installation

Figure: Heating circuit connection set (accessory)
Figure: Pump assembly (accessory)
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