Potterton Suprima 100, Инструкция по установке и обслуживанию

Страница: 23 / 38

To Service the Boiler & Component Replacement - Page 23
To complete sections 4.3.3 to 4.3.11 perform the following:-
2. Remove the two screws securing the outer white case to
the chassis. Hinge forward, pull bottom of cover forward
and lift off. Put safely aside.
3. Remove the screw securing the combustion chamber
front to the heat exchanger and the two side screws,
remove the panel.
4.2 To Service the Boiler
1. Loosen the baffle plate securing screw and remove the
baffle plate. Disconnect the tube from the front of the fan
housing.
2. Disconnect the 4 wires from the fan motor, at the in-line
4 way connector.
3. Remove the two screws securing the fan to the flue
hood. Carefully pull the fan down and away from the flue
hood.
4. Remove the flue hood.
5. Disconnect the electrode and earth wire.
6. Undo the fixing screw, hold the burner at the right hand
side and pull forward to disconnect from the box.
If necessary, remove the injector as follows:-
7. Undo the two screws securing the side and rear
insulation assembly on the front of the chassis. Pull the
assembly forward and away from the boiler.
8. If the injectors are removed use a new sealing washer
when re-fitting each injector.
The heat exchanger, burner and fan can now be
inspected. If deposits have formed on these items and
on ancillary components clean as detailed in the notes
at the start of this section.
The boiler can be re-assembled in reverse order. Refit
baffle plate and ensure that any electrical connections
are in place and that any damaged seals or insulation
are replaced before re-fitting the controls cover.
Check the gas pressure, refer to Section 3
'Commissioning'.
Other Components
No other servicing is required on any other boiler
component.
4.3 Component Replacement
(see over page)
Warning
Before attempting to remove any component from the
appliance first disconnect the mains electricity supply by
removing the plug from the wall socket or by switching off
the appliance at the external isolating switch.
Notes
The 'O' (off) position on the boiler temperature control will
leave parts of the boiler Live.
If the appliance gas valve is to be removed it will be
necessary to isolate the gas supply at the appliance isolating
valve.
Important
After removal or replacement of any gas carrying component
a test for gas soundness must be made and functional check
of the controls carried out.