Viessmann VITOPEND 100-W Installation And Service Instructions Manual page 7

Flue gas connection
A Test port Ø 10 mm
B 2 x flue pipe diameter
Gas connection
1. Install a gas shut-off valve A.
Conversion to other gas
types:
Conversion kit installation
instructions
Installation sequence
1. Connect the flue outlet with the
shortest possible run of flue pipe to
the chimney. Avoid sharp bends.
Note
The cross-section of the flue pipe
and the chimney must match that of
the draught hood connector. Main-
tain a clearance of at least 100 mm
between the flue pipe and combus-
tible materials.
2. Create a test port in the flue pipe
(see diagram).
3. Thermally insulate the flue pipe (if
required).
2. Carry out a leak/soundness test.
!
Please note
Excessive test pressure
may damage the boiler and
the gas valve.
Max. test pressure
150 mbar. Where higher
pressure is required for
soundness tests, separate
the boiler and the gas valves
from the gas supply pipe
(undo the fitting).
3. Vent the gas supply pipe.
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