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Viessmann Vitotwin 300-W - Gas connection

Viessmann Vitotwin 300-W
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45
A
1.
Connect gas shut-off valve A.
See page 66 for converting to other
gas types.
2. Check the gas connections for tight-
ness.
Note
For the tightness test, use only suita-
ble and approved leak detecting
agents (EN 14291) and devices.
Leak detection agents with unsuita-
ble constituents (e.g. nitrites, sul-
phides) can cause material damage.
Remove residues of the leak detec-
tion agent after testing.
Installation sequence
Gas connection
5618 294 GB
Installation

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