ermaf GP 95 ACU Instrucciones De Utilizacion página 42

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).
1 Switch off the burner control unit ACU.
2 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.
3 Shut off the gas supply.
▷ To facilitate cleaning of the components inside
the housing, the service cover on the casing
can be opened.
4
4
▷ I = Flame rod,
Z = Spark electrode
7
6
I
Z
10
9
GP_95_ACU_NF.indd 18
12 Check the burner head (nozzle and baffle plate)
and the electrodes for dirt and if necessary, clean
using a cloth. Remove stubborn dirt on the elec-
trode rod using fine abrasive paper.
13 Check electrodes and porcelain insulators for
cracks and replace the electrodes in case of
damage.
▷ Replace the electrodes if necessary.
14
14
▷ Ensure correct positioning of the electrodes.
16
16
17
17
▷ When replacing the flame rod, the porcelain in-
5
sulator must be flush with the spark electrode
5
insulator.
▷ Clean the grille and fan using a cloth only.
18
8
▷ Clean the vane and plates for the air intake us-
ing a cloth only.
20
11
22 Clean the interior of the device carefully using air.
▷ The vane must not be bent.
GB-18
15
15
I
I
Z
Z
I
I
Z
Z
19
21
74 mm
74 mm
13.09.20 22:53