4
●
Remove fan with mounting plate attached by
pulling down and forward out of ‘keyhole’ slots.
●
Unscrew and remove two screws securing heat
exchanger inspection plate to flue hood.
●
Remove inspection plate by pulling forward and
off flue hood.
●
Examine heat exchanger for any blockages or build
up of deposits.
●
Clean heat exchanger with soft brush or vacuum
cleaner.
Reassembly of parts removed for servicing
All parts are replaced in reverse order to removal.
Note:
1)
When refitting fan, ensure that it is pushed upwards
as far as the locating lugs will allow.
2)
When refitting the ignition and flame detection
leads, the RED lead goes to the REAR electrode and
the WHITE lead goes to the FRONT electrode.
ROUTINE CLEANING AND INSPECTION
To ensure the continued efficient and safe opera-
tion of the boiler it is recommended that it is checked
and serviced at regular intervals. The frequency of
servicing will depend upon the particular installa-
tion conditions and usage, but in general once a
year should be enough.
It is the law that any servicing is carried out by a
competent person.
Service Check and Preparation.
●
Operate boiler and check for any faults that need
to be put right.
●
Isolate boiler from the gas and electrical supplies.
●
On completion check all gas carrying parts for
soundness with leak detection fluid.
●
The maximum domestic hot water flow rate is 12
litres/minute.
●
Remove boiler casing as follows:
Upper front panel
●
Remove by pulling free from the spring clips at the
top and bottom.
Side panels
●
Remove the four screws securing each panel to the
boiler, two at the top, two at the bottom.
●
Lift off panel.
Combustion chamber
●
Unclip four toggle clips holding the sealed chamber
cover
.
●
Unscrew and remove two screws securing sealed
chamber cover to sealed chamber
see diag. 1
.
●
Remove four screws securing combustion chamber
cover to combustion chamber,
see diagram 2
.
Important:
Note position of baffle secured by upper
two combustion chamber cover screws.
●
Pull combustion chamber cover down and out of
boiler, taking care not to damage insulating material
on internal faces of combustion chamber.
Burner
●
Undo main gas supply nut from burner.
●
Pull main burner forward, pull off the ignition and
flame sense leads from the electrodes and remove
burner from boiler.
Note:
The washer between main burner and main
burner gas supply must be kept for use on reassembly.
●
Remove ignition and flame sense electrodes from
burner.
●
Unscrew and remove four injector bar retaining
screws and separate injector bar from burner.
●
Examine and clean injectors as necessary.
Note:
DO NOT use a wire or sharp instrument on the
holes.
Heat exchanger
●
Disconnect power supply leads from fan by
separating at electrical connector.
●
Unscrew, but do not remove, two fan retaining
screws at lower front edge of fan mounting plate.
Diagram. 1
Diagram. 2
Содержание SYLVA FF 24 E
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