Replace cooker burner door
F
and outer door
E
.
6. The cooker burner will gradually increase its oil rate,
yet under the control of the oven thermostat, taking 2
1
/
2
hours to attain 220°C (400°F) from cold.
Appliance and Flue Pipe Draught
(i) Flue Pipe Draught
The draught must be measured in the flue pipe above the
flue chamber, and must not exceed 6mm w.g. (0.24in
w.g.) at any time.
Should excessive draughts occur, an additional flue
stabiliser should be fitted on the flue pipe between the top
of the flue chamber and the kitchen ceiling, for controlling
the excessive draught down to 6mm w.g.
(iii)Appliance Draught
The draught in the boiler and cooker flues should be
collectively checked, and for optimum performance,
draught measurements with respect to Flue Pipe
Draughts should be as indicated in Fig. 14.
Twice Yearly Servicing
It is important that service cleaning is carried out at least
twice yearly by a competent service engineer, and it is
recommended that a contract be made with a registered
heating installer. With normal use, a boiler/cooker half
yearly flueway clean and burner service should be carried
out immediately at the commencement and end of the
heating season. An additional flueway clean half-way
through the heating season may be necessary in some
cases.
The householder should be advised to turn
OFF
both
cooker and boiler control knobs
A
and
H
and the oil
control valve knob
C
to
OFF
(Fig. 15) the night preceding
the day of the service so that the appliance will have
cooled down by the following morning, in readiness for
servicing. Before commencing any servicing, isolate the
electricity supply (switch
OFF
and remove plug) then turn
OFF
the oil supply at the isolating valve near to the
appliance.
Standard Half Yearly Service Schedule
a. Remove and clean Flue Draught Stabiliser.
b. Service clean of complete boiler heat exchanger over
flueways, oven and hotplate flueways together with boiler
firebricks.
c. Service clean of complete cooker and boiler oil burner.
d. Detailed examination of glo-coil and clean.
e. Remove and clean boiler burner fan.
NOTE:
DEPENDING ON USAGE, GLO-COILS MAY
DETERIORATE (HEAT OXIDING) AND REQUIRE
REPLACEMENT AT THE END OF RESPECTIVE
HEATING SEASON.
Standard Yearly Service Schedule
a. Remove and clean Flue Draught Stabiliser unit and
check that it moves freely.
b. Service maintenance check of cooker and boiler
thermostat.
c. Service maintenance check of boiler combustion fan
unit, air pressure switch and oil solenoid.
d. Service maintenance check of boiler flame sensor, oil
valve and its electric top.
e. Check on cooker and boiler oil flow rates - Section
“
Post Servicing Checks
”.
To obtain Servicing Access
To obtain servicing access to boiler heat exchanger, oven
and hotplate flueways, boiler firebricks and both oil
burners, proceed as follows:
a. Lift out hotplate via lifting tools - See Fig. 17.
b. Lift out boiler combustion separator baffle and remove
boiler flueway firebricks - See Fig. 18.
c. Open outer burner door
E
- See Fig. 15.
d. Lift off cooker burner door
F
- See Fig. 15.
To Remove Cooker and Boiler Burners - See Fig. 15.
a. Ensure isolation of the electrical supply (switch
OFF
or
remove plug).
Fig.14 Flue Draught Setting Curves
SERVICING INSTRUCTIONS
14
