32
Installation
Gas line
The gas line leading to the installation
has to be calculated to the maximum
capacity to determine the diameter of
the supply pipe.
The gas line has to be placed on the
allocated openings of the flange plates
of the pipe work headers flow/return
and secured on all flange plates by
the special M6x8x16 close tolerance
bolts.
Pressure loss for a newly installed
natural gas line may be 1.7 mbar max.
In the case of an extension, this may
be 2.5 mbar max. This value is to be
measured in between the operational
gas meter and the CH-boilers.
For correct functioning of the boilers, it
is necessary that the gas dynamic inlet
pressure must be at least 19 mbars.
This value is to be measured in front of
the gas flange connection.
With regard to new lines in particular,
ensure that the gas line does not
contain any residual pollution.
ATTENTION:
For use with propane gas, the LPG
conversion kit has to be installed,
see separate conversion instructions.
Following maintenance tasks always
check all gas carrying components
for leakages by using of leakage
detection fluid (LDF).
