30
British Gas RD1
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Installation & Servicing
SERVICING
MAIN BURNER
After any servicing, reference should be made to Table 2
which quotes details of the rated output with the related
burner setting pressure and the heat input. Any required
adjustments should be made by using the pressure
adjustment screw.
Refer to 'Initial Lighting', Frame 40.
REPLACEMENT OF PARTS
1. Refer to Frame 51.
2. Remove the control box fixing screws.
3. Swing the control box down into the servicing position.
4. Pull off the electrical connections at the thermostat.
53 OVERHEAT THERMOSTAT REPLACEMENT
5. Unclip the capillary
from the back panel.
6. Undo the sensor
retaining screw and
withdraw the sensor
from the pocket.
7. Remove the thermostat
retaining nut and with
draw the thermostat
from the control box..
50 GAS PRESSURE ADJUSTMENT
PILOT
The pilot is factory set to maximum and no further
adjustment is possible. If, after removing and checking the
injector (as detailed in Frame 48) and ensuring that there
is an inlet pressure of 20 mbar available, the pilot does not
light then contact British Gas Services.
Relight in accordance with 'Initial Lighting', Frame 40.
52 SIGHTGLASS REPLACEMENT
1. Refer to Frame 51.
2. Unfasten the 2 nuts and washers holding the sightglass
assembly to the casing front panel.
3. When fixing the new assembly ensure that the parts are in
the correct order. The frame must have the return edge at
the bottom.
4. Retighten the 2 nuts to ensure an airtight seal. Do NOT
overtighten.
6. Replace the boiler casing.
51 GENERAL
When replacing any component:
1. Isolate the electricity supply.
2. Turn OFF the gas supply.
3. Remove the boiler casing. Refer to Frame 45.
IMPORTANT. When work is complete the casing must be
correctly refitted, ensuring that a good seal is made.
The original routing of the wires must be adhered to when
replacing electrical components.
The boiler MUST NOT be operated if the casing is not fitted.
8. Fit the new thermostat and
reassemble in reverse order.
9. Check the reset button on the
new thermostat is pressed in.
10. Check the operation of the
boiler.
SER
VICING
