Maintenance - ermaf GP 14 ACU Betriebsanleitung

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.
5
4
4 x
6 Clean the grille with a cloth.
7 Clean the interior of the device carefully using air.
▷ The vane must not be bent.
8 Clean the fan and vane using a cloth.
9 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.
GP_14_ACU_NF.indd 18
klick
GB-18
10 Check the mixer pipe for dirt. Clean the opening
using a cloth.
▷ The flame rod I and spark electrode Z can be
removed without having to dismantle the com-
bustion chamber.
11 12
Z
14 15
I
17 Check the electrodes for dirt and if necessary,
clean using a cloth. Remove stubborn dirt on
the electrode rod using fine abrasive paper.
18 Check electrodes and porcelain insulators for
cracks and replace the electrodes in case of
damage.
▷ Replace the electrodes if necessary.
▷ Fit the electrode seal.
19 Clean both sides of the plates for the air intake
as well as the burner head using a cloth.
▷ Ensure that the rubber seals between the elec-
trodes and the terminal boots are fitted correctly.
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16
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