GB-18
D
GB
NL
RUS
PL
F
E
UA
CN
Maintenance
CAUTION
To ensure that no damage occurs during operation
and maintenance, please observe the following
instructions. Otherwise, injuries or damage to the
device may occur and/or the function of the device
may be impaired. The supplier/manufacturer cannot
accept liability for damage resulting thereof.
– Have the heater cleaned at least once a year
by qualified maintenance personnel.
– Have the safety functions checked at least once
a year by qualified maintenance personnel, see
page 20 (Checking the safety functions and
burner operation).
– Sharp-edged metal sheets. Always wear protec-
tive gloves.
– After cleaning or repair work, check that the
components on and in the heater are in good
condition. The device may only be restarted
if all safety devices have been installed and
the safety functions have been checked, see
page 20 (Checking the safety functions and
burner operation).
Switch off the burner control unit ACU.
Disconnect the system from the electrical power
supply.
▷
The mains plug may only be pulled out once the
device has been switched off and post-cooling
is complete.
Shut off the gas supply.
▷
To facilitate cleaning of the components inside
the housing, the service cover on the casing
can be opened.
4
5
▷
Alternatively, the fan may be removed.
7
6
8
10
9
11
Clean the grille with a cloth.
Clean the interior of the device carefully using air.
▷
The vane must not be bent.
4
Clean the fan and vane using a cloth.
5
Check that the vane switch is functional.
▷
If the vane is moved a little in the direction of the
arrow, a quiet click can be heard. This means
that the switching path is correct.
klick
▷
Check the nozzle and burner baffle plate for dirt
and if necessary, clean using a cloth. Remove
first the burner baffle plate, then the nozzle. To
do this, a special tool is required. Nozzle spanner
size = A/F 36 and A/F 46. The nozzle is secured
via the burner baffle plate by a cross-head screw.
17
16
8
Loosen the A/F 36 nut to detach the gas pipe.
Note the seal.
9
Then loosen the A/F 46 nut.
SW 36
SW 46
▷
Remove the nozzle.
20
▷
The flame rod and spark electrode can be re-
moved without having to dismantle the combus-
tion chamber.
