Connections On The Gas And The Water Side - Viessmann Vitodens 200 Technical Manual

2.5 Connections on the gas and the water side

Gas connection
Gas installations must only be carried out
by an approved installer who has been
authorised by the relevant gas supplier.
Size and connect the mains gas according
to TRGI '86/96 or TRF 1996 [or local
regulations].
2
76
Max. test pressure 150 mbar.
We recommend the installation of a gas
filter to DIN 3386 into the gas supply line.
Thermal safety shut-off valve
According to paragraph 4, sect. 5 of the
FeuVo '96 [Germany], thermal shut-off
equipment must be installed in
combustion equipment or in gas supply
lines immediately upstream of the
combustion equipment, which will
shut-off the gas supply, when the external
temperature exceeds 100 ºC. These
valves must isolate the gas supply for at
least 30 minutes up to a temperature of
650 ºC. This should prevent the formation
of explosive gas mixtures in the event of
fires.
The gas shut-off valves supplied with the
Vitodens are equipped with integral
thermal safety shut-off valves.
VITODENS