Viessmann VITODENS 050-W Installation And Service Instructions Manual page 6

Safety instructions
Safety instructions
Safety instructions for operating the system
If you smell gas
Danger
Escaping gas can
lead to explosions
which may result in
serious injury.
■Do not smoke. Pre-
vent naked flames
and sparks. Never
switch lights or elec-
trical appliances on
or off.
■Close the gas shut-
off valve.
■Open windows and
doors.
■Evacuate any peo-
ple from the danger
zone.
■Notify your gas or
electricity supply
utility from outside
the building.
■Have the power
supply to the build-
ing shut off from a
safe place (outside
the building).
6
(cont.)
If you smell flue gas
What to do if water
escapes from the appli-
ance
Danger
Flue gas can lead to
life threatening poi-
soning.
■Shut down the heat-
ing system.
■Ventilate the instal-
lation site.
■Close doors to living
spaces to prevent
flue gases from
spreading.
Danger
If water escapes from
the appliance there is
a risk of electrocu-
tion.
Switch OFF the heat-
ing system at the
external isolator (e.g.
fuse box, domestic
distribution board).