20
Gas connection
1.
Fit gas shut-off valve A.
2. Carry out a tightness test.
!
Please note
Excessive test pressure may
damage the boiler and the
gas train.
Max. test pressure
150 mbar. Where higher
pressure is required for
tightness tests, disconnect
the boiler and the gas train
from the main supply pipe
(undo the fitting).
3. Purge the gas line.
Balanced flue connection
Note
■ The boiler may only be operated with
a balanced flue system of
7
60/100 mm.
■ The balanced flue system must be
at least 1 m long, incl. 90° bend.
!
Please note
If a single flue pipe is used, the
boiler has no protection against
splashing water.
Only connect a concentric bal-
anced flue pipe or balanced flue
bend of
7
60/100 mm to the
boiler.
Prior to installation, check whether a
flue restrictor is required. See the table
below.
Installation sequence
Mounting the boiler and making the connections
(cont.)
5837146
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