GB-13
D
GB
NL
RUS
PL
F
E
UA
CN
▷
The electrical components are protected from
moisture by additional water drip edges on the
housing cover. Nevertheless, direct water influ-
ence on the edges of the housing cover should
be avoided.
▷
A downward slope inside the device ensures
that dirty water drains out.
▷
Never direct the high-pressure cleaner at the
heater when it is set to water jet. Always use
the spray setting.
▷
The distance between the nozzle and the surface
to be cleaned must always be at least 50 cm. Too
short a water jet from the high-pressure cleaner
can cause serious damage to the device.
1
Switch off the burner control unit.
2
Disconnect the system from the electrical power
supply.
▷
The heater may only be disconnected from the
electrical power supply once the device has been
switched off and post-cooling is complete.
3
Shut off the gas supply.
4
Check the cover on the burner control unit and
the housing cover to ensure they are both tightly
closed.
MODE
RESET
ON/OFF
▷
The heat exchanger can be easily accessed via
the service flap.
5
Clean the heat exchanger and burner by means
of a water jet directed through the safety grille
past the fan blades
MODE
RESET
ON/OFF
> 50
cm
▷
If the RGA is heavily soiled, the safety grille can
be removed together with the fan:
MODE
RESET
5b
5c
5a
5d
Refit the safety grille and fan after cleaning:
To do so, slightly tighten the nuts, check the
fan blades for smooth operation and freedom
of movement and then firmly tighten the nuts.
▷
The rubber seals between the electrodes and
terminal boots may be displaced by the water jet.
6
After cleaning, check that all the parts on and
in the heater are in the correct positions, for ex-
ample whether the rubber seals between the
electrodes and terminal boots are fitted correctly.
7
Chemical cleaning agents, disinfectants and/or
pesticides contain corrosive substances which
can even corrode stainless steel. Always rinse
the devices with water after cleaning using such
agents to remove any residue of these agents
from the surface.
8
After cleaning, select operating mode
3
Con-
trolled air flow so that the interior of the device
can dry properly.
9
After cleaning the heater, check it is functioning
faultlessly in normal operation, see page 21
(Checking the safety functions and burner opera-
tion).
10
When operating with LPG, check and clean the
breather orifice of the pressure reducer.
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