Condensing Boiler
22
3/1/00
SERVICING
Health and Safety Statement :
This product contains no asbestos.
Routine
To ensure continued efficient operation of the
appliance it is recommended that it is checked
and serviced at regular intervals.
The frequency of servicing will depend upon
the particular installation and usage but in
general once per year should be adequate.
It is law that any service work should be carried
out by Corgi registered personnel.
1. Clean burner and combustion chamber.
2. Check pilot and burner gas supply.
3. Check condition of ignition sensing probe.
4. Check boiler pipework joints for leaks.
5. Check condensate pipework for leaks.
6. Check heat exchangers, flue and air duct
are clear of any obstruction, and not
leaking.
7. Check the Fan.
8. Check and clear the condensate exit on the
secondary heat exchanger by removing the
Condensate Outlet and the Inspection
Cover (Fig. 15).
9. Check and clear the condensate syphon.
Follow the procedures given in Changing
Components for parts removal in addition to
the following notes.
1.Heat Exchangers
Remove the panel in front of the secondary
heat exchanger to gain access to inner
inspection panels on the secondary and to
view the primary (the lowest inspection panel
also gives a view of the primary). Also view
from beneath the primary. Clean as required.
If in doubt, drain the system and remove for
inspection.
2.Condensate Syphon
With a suitable bowl to catch the water,
unscrew the two drain-caps on the underside
of the Syphon trap and drain the water.
Remove any solids and replace caps. (fig 14)
CHANGING COMPONENTS
THERE ARE NO REPAIRABLE ITEMS, IF NOT
WORKING AN ITEM MUST BE REPLACED.
The boiler is in two major sections, the Case,
and the Electrical Tray, The Major Components
Diagram shows where the items are to be
found.
Behind the Electrical Tray
1. Sequence Controller.
2. Panel Indicators.
3. Multifunctional Control.
4. Programmer (where fitted).
5. Pump overrun board.
Behind the Case
6. Fan.
7. Air Pressure Switch.
8. Flue Thermostat.
9. Control Thermostat.
10. Overheat Cut-off Device.
11. HT Lead.
12. Pilot Assembly.
13. Burner.
14. Main Injector.
15. Combustion Chamber Insulation.
16. Primary Heat Exchanger.
17. Secondary Heat Exchanger.
Servicing behind the Electrical Tray
To Remove the Electrical tray
•
Disconnect the electrical supply from the
boiler and system.
•
Undo the two screws on the front fascia.
•
Slide the Electrical Tray forward a short
way, then lower. Remove the cover over the
components.
DO NOT STRAIN THE CABLES, USE THE
SUPPORT PROVIDED.
1. Sequence Controller
•
Lower the Electrical Tray.
•
Remove the single screw that retains the
inner cover.
•
Prise off the multiway connectors away from
the Sequence Controller.
•
Pull off the HT Lead from the Controller.
•
Unclip the Sequence Controller from the
four pillars.
