Viessmann VITOCROSSAL 200 Service Instructions Manual page 3

Safety instructions
■ Codes of practice of the relevant trade
associations.
■ All current safety regulations as
defined by DIN, EN, DVGW, TRGI,
TRF, VDE and all locally applicable
standards.
a ÖNORM, EN, ÖVGW-TR Gas,
ÖVGW-TRF and ÖVE
c SEV, SUVA, SVGW, SVTI,
SWKI, VKF and EKAS Directive
1942: LPG, part 2
If you smell gas
Danger
Escaping gas can lead to explo-
sions which may result in serious
injury.
■ Do not smoke. Prevent naked
flames and sparks. Do not
press any switches for lights or
electrical appliances.
■ Close the gas shut-off valve.
■ Open windows and doors.
■ Remove all people from the
danger zone.
■ Notify your gas or electricity
supply utility from outside the
building.
■ Shut off the electricity supply to
the building from a safe place
(outside the building).
If you smell flue gas
Danger
Flue gas can lead to life-threat-
ening poisoning.
■ Shut down the heating system.
■ Ventilate boiler room.
■ Close all doors in the living
space.
(cont.)
Working on the system
■ Where gas is used as the fuel, close
■ Isolate the system from the power sup-
■ Safeguard the system against recon-
!
Repair work
!
the main gas shut-off valve and safe-
guard it against unintentional reopen-
ing.
ply (e.g. at the separate fuse or a main
switch) and check that it is de-ener-
gised.
nection.
Please note
Electronic assemblies can be
damaged by electrostatic dis-
charges.
Before beginning work, touch
earthed objects, such as heating
or water pipes, to discharge static
loads.
Please note
Repairing components that fulfil a
safety function can compromise
the safe operation of your sys-
tem.
Replace faulty components only
with original Viessmann spare
parts.
Safety instructions
3