Safety
2.
Safety
2.1 Intended use
2.2 Commissioning
2.3 General safety instruc-
tions
22
Danger! Always observe the following safety instructions. Otherwise you will put
yourself and others at risk.
The CG 20 R03 VW5 WZZ gas valve is used for regulating the ratio between gas
and air quantity in the gas condensing boilers.
Note: The chapter Commissioning in these instructions and the operating manual
of the heating system used must be followed!
Danger! All work in connection with the installation must only be carried out by an
approved gas installer!
Any accessories used must comply with current technical rules and must be ap-
proved by the manufacturer for use with the gas valve. Only use original spare
parts.
Unauthorised conversions or modifications on the gas valve are not permissible,
as these might result in damage to the gas valve and the heating system. In case
of not observing this, the approval of the device becomes void.
7311160-04 09.20