Connecting The Earth Bonding; Commissioning - Viessmann VITOCELL 100-U Installation Instructions Manual

Connecting the domestic hot water side
Install the safety valve in the cold
water pipe. It must not be able to be
isolated from the DHW cylinder. The
pipework between the safety valve
and the DHW cylinder must not be
restricted in any way. The safety valve
blow-off line must not be able to be
closed. Expelled water should be
safely and visibly drained into a dewa-
tering unit.
It is advisable to place a sign close to
the safety valve blow-off line or on the
safety valve itself with the following
inscription: "For safety reasons, water
may be discharged from the blow-off
line during heating. Never seal off."
The safety valve must be installed.
Recommendation: Install the safety
valve higher than the top edge of the
cylinder. This protects the valve
against contamination, scaling and
high temperatures. The DHW cylinder
does not then need to be drained
when working on the safety valve.

Connecting the earth bonding

Connect the earth bonding in accor-
dance with the requirements stipu-
lated by your local power supply utility
and current regulations.

Commissioning

Service instructions
22
(cont.)
c Connect the earthing system in
accordance with the technical require-
ments stipulated by the local power
supply utility and SEV regulations.