Supplied By www.heating spares.co Tel. 0161 620 6677
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To ensure continued efficient operation of the appliance, it is
recommended that it is checked and serviced as necessary
at regular intervals.
The frequency of servicing will depend upon the particular
installation conditions and usage but in general once a year
should be adequate. It is the law that any service work must
be carried out by registered person [C.O.R.G.I.].
Before commencing any service operation, ISOLATE the
mains electrical supply, and TURN OFF the gas supply at the
main service cock. Service the appliance by following the full
procedure detailed below.
A flue products sampling point is located to the right hand
side of the appliance.
This may be used to check the performance of the appliance
prior to/instead of servicing.
It is the lower of the two fittings to which the air pressure swit-
ch is connected. The test equipment should be connected but
not switched on before the appliance is in operation.
5.1
MAIN BURNER ASSEMBLY
– Remove the casing by unscrewing the retaining
screws at bottom rear of the appliance and pulling the
panel forwards, lifting it off the two pins at the top two
corners (fig. 24).
– Refer to fig. 22. Remove the 4 fixing screws securing the
sealed chamber front panel then remove the panel.
– Unscrew the 2 screws securing the combustion chamber
front panel and remove the panel, taking care not to dama-
ge the insulation.
– Remove the red ignition control box from the gas valve, 1
screw.
– Unplug the ignition and detection leads from the ignition
box, taking note of their respective position.
– Slide the burner forwards and at the same time feed the
two wires through the grommet in the sealed chamber.
Remove the burner complete with the electrodes and leads.
– Inspect and if necessary clean the electrodes and the main
burner bars.
– Inspect the main injector for any signs of damage or debris
and clean if necessary.
5.2
FAN ASSEMBLY
– Disconnect the electrical connections to the fan. Note the
position of the earth conductor.
– Whilst supporting the fan, remove the three screws secu-
ring the fan to the mounting plate.
– Slide the fan downwards and once disengaged from the
flue turret, remove it forwards
– Inspect the fan and clean if necessary.
5.3
HEAT EXCHANGER
– Remove the fan mounting plate, 2 screws.
– Remove each of the flue baffles by lifting them upwards,
clear of the heat exchanger and clean if necessary.
– Inspect the heat exchanger and clean if necessary with a
soft brush.
5.4
RE-ASSEMBLY
– Re-assemble all the components in reverse order.
– Check that the fan earth connection is correctly re-fitted.
Note that the fan polarity [Line and Neutral] is immaterial.
– Ensure the ignition wires are correctly fitted and connec-
ted to the ignition control.
– Ensure that all seals are correctly fitted.
– Fit the sealed chamber front panel
– Check for gas soundness before fitting the white casing.
5.5
RE-COMMISSIONING
– Turn on the gas supply, and check for gas soundness.
– Check the operation of the appliance and all the external
controls.
– The burner pressure should be checked after at least 10
minutes running. The data label on the appliance states
the details.
– Adjust if necessary as described in section 4.
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ROUTINE SERVICING INSTRUCTIONS
4 SEALED CHAMBER SCREWS
2 COMBUSTION CHAMBER SCREWS
CONTROL BOX FIXING SCREW
3 FAN SCREWS
Fig. 22
