Viessmann B2HF - Fitting the boiler to the wall mounting bracket

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4. Note
Only remove the clip under the gas pipe union nut
once the appliance has been installed. Clip is no
longer required.
5. Tighten union nuts so that they form a tight seal.
Torque settings:
■
Union nuts G ¾: 30 Nm
■
Union nuts G ½: 24 Nm
When carrying out any work on gas connection fit-
tings, counterhold with a suitable tool. Never trans-
fer any forces to the internal components.
6. Tighten locking ring fittings so that they form a tight
seal:
One turn beyond finger-tight.
Fitting the boiler to the wall mounting bracket
Note
Various installation components can be found in a sep-
arate pack. Keep the installation components safe, as
they will be required for later installation.
Installation sequence
Mounting the boiler and making connections (cont.)
5593201
Installation