Wolf CGB-75 Installation And Operating Instructions Manual page 5

Risks from pressurised water
Boilers are subject to high water pressure.
Water pressure can cause severe injuries.
Before working on parts which are in contact
with water, allow the appliance to cool to below
40 °C, shut off all valves and, if necessary, drain
the appliance.
Note:
Sensors can be in contact with water and there-
fore exposed to pressure.
Working on the system
- Close the gas shut-off valve and secure it against uninten-
tional reopening.
- Isolate the system from the power supply (e.g. by remov-
ing a separate mains fuse or by means of a main switch
or a heating emergency stop switch) and check to ensure
there is no voltage.
- Safeguard the system against reconnection.
Inspection and service
- Ensure the correct operation of the gas boiler by having a
contractor carry out inspections at least once a year and
maintenance/repair when required.
- (DVGW - TRGI 2008 - G600).
We recommend arranging a suitable maintenance con-
tract.
- The operator is responsible for the safety, environmental
compatibility and energy quality of the heating system
(German Immission Control Act/Energy Saving Ordi-
nance) [Germany].
- Use only genuine WOLF spare parts.
3062555_201804
2. Safety information
5