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Commissioning, inspection, maintenance
Shutting down the heating system
Danger
Touching live components can result in life
threatening injuries. After switching off the
ON/OFF switch on the control unit, there are still
live components inside the control unit enclo-
sure.
Isolate the system from the power supply, e.g.
■
by removing the separate fuse or by means of
a mains isolator, and check that it is no longer
live.
■
Safeguard the system against reconnection.
Danger
Hot surfaces and fluids can lead to burns or
scalding.
■
Before maintenance and cleaning work, switch
OFF the system and let it cool down.
■
Never touch hot surfaces on the boiler, burner,
flue system or pipework.
Wear suitable personal protective equipment.
■
Maintenance and cleaning work
Safety instructions regarding maintenance and cleaning
Danger
Touching live components can result in life
threatening injuries. After switching off the
ON/OFF switch on the control unit, there are still
live components inside the control unit enclo-
sure.
Isolate the system from the power supply, e.g.
■
by removing the separate fuse or by means of
a mains isolator, and check that it is no longer
live.
■
Safeguard the system against reconnection.
Danger
Hot surfaces and fluids can lead to burns or
scalding.
■
Before maintenance and cleaning work, switch
OFF the system and let it cool down.
■
Never touch hot surfaces on the boiler, burner,
flue system or pipework.
Wear suitable personal protective equipment.
■
Danger
Hot surfaces and fire from apertures can result
in severe burns.
Doors, covers and apertures fastened shut
■
with screws must not be opened during heat-
ing operation.
■
Before maintenance and cleaning work, switch
OFF the boiler and let it cool down.
■
Never touch hot surfaces on or in the boiler,
burner, flue system or pipework.
Wear suitable personal protective equipment.
■
70
1. Switch off the boiler by pressing "START/STOP"
on the control unit.
2. Wait until the run-on time has passed and let the
boiler cool down.
3. Switch off the mains isolator and safeguard against
restarting.
Danger
There is a risk of fire and burns due to hot com-
ponents and cinders.
■
Switch off the boiler and let it cool down.
■
Carry out maintenance and cleaning work only
on central heating boilers that have cooled
down.
■
Allow hot components to cool down before
removing.
■
Wear suitable personal protective equipment,
in particular protective gloves.
Danger
When operating the ash box, there is a risk of
fire and burns due to hot ash.
■
Wear suitable personal protective equipment,
in particular protective gloves.
■
Only dispose of the hot ash in fireproof con-
tainers with covers.
Danger
Disposal of hot ash in an unsuitable vacuum
cleaner creates a risk of fire from the ignition of
filters and plastics.
Use a suitable ash vacuum cleaner that is
■
specially designed for this purpose.
Never use domestic vacuum cleaners made of
■
plastic with fabric/paper filters.
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