Installation - Wolf CGB-75 Installation 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 drain & fill valve at the lowest point in the system.
Safety equipment
The CGB-75 and CGB-100 have not been fitted with an ex-
pansion vessel at the factory. This must be fitted externally
(available from the Wolf accessories range). The expansion
vessel must be sized sufficiently, in accordance with DIN 4807.
There must be no shut-off valve between the
expansion vessel and the condensing boiler,
otherwise the pressure build-up would perma-
nently damage the boiler during heating. There
is a risk of system components rupturing, giving
rise to a risk of scalding.
This does not include butterfly valves upstream of the expan-
sion vessel. The pump or fitting assembly includes a 3 bar
safety valve (6 bar safety valve is available as an accessory).
Route the discharge pipe line into a drain funnel. The mini-
mum 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_201804

10. Installation

Fig.: Heating circuit connection set (accessory)
Fig.: Pump assembly (accessory)
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