- 12 -
minimum. We recommend the use of a HEPA filtered vacuum to remove any dust and soot
accumulated in the heater before and after working on it. When replacing these articles, they
should not be broken up, but sealed in heavy duty polythene bags labelled ‘RCF Waste’, which may
be disposed of at a tipping site licensed for industrial waste. Normal hygiene rules of not smoking,
eating or drinking in the work area should be followed.
Disconnect the gas supply to the appliance.
Undo the two nuts holding the burner assembly in the chassis. Remove the burner tray and
examine it for general condition. Discoloration of the burner surface is normal.
Clean around the air inlet, removing all lint in the area of the injector and ensuring the pilot light
aeration hole and flame head are clean. Injectors
–
Only original manufacturer’s injectors must be
used. Identification is as listed under replacement parts:
Should the oxypilot system need to be replaced, the original manufacturer’s parts must be used.
Controls – The GAS CONTROL IS FACTORY SET AND NORMALLY NEEDS NO ADJUSTMENT. Check for
smooth operation of the gas valve. Remove all covers, check the tightness of the thermocouple
connection into the valve, the condition of the piezo and ignition leads.
On remote control fires check the condition of batteries, leads, control boxes and if necessary
change the batteries in the fire and handset.
Examine the fire casing, the firebox and catalytic converter for obvious signs of damage or
degradation. Clean out any dirt or dust accumulated in the bottom of the fire. Reassemble in
reverse order.
Replace burner into chassis and reconnect to the gas supply. Test all joints for leaks.
Following the manufacturer's instructions, re-lay the fuel bed and replace the glass.
Light the fire using the method in the instructions and ensure that the pilot lights consistently and
the pilot flame envelopes the thermocouple. The pilot should hold in 10 seconds. Turn control to
main burner, this should light smoothly within 10 seconds. Ensure that valve gives adequate turn
down and the thermostat bulb reduces the burner rate to off when heated. The gas manifold
pressures are factory preset using highly accurate equipment and may be observed in the pressure
test point on the valve. In the unlikely event of the pressure being incorrect it may be reset (refer
to data plate for details), using a manometer or other pressure testing equipment.
Locate thermostat bulb in a cool place away from the appliance and preferably outside of any
inglenooks, to ensure it is sensing room air temperature.
Run appliance for 10 minutes, ensuring burner flames settle evenly.
A combustion analysis check should then be carried out. Using an analyser to BS7927, first zero
the equipment and sample the entire width of the combustion product outlet. Ratio of CO/CO2
should be less than 0.002 within 30 minutes. ( 20ppm CO per 1% CO2 ) A reading of CO in the
room centre should give a rise of less than 9ppm over ambient, peak reading. The catalyst is
unlikely to need replacement during the life of the heater but if the combustion is suspect,
disconnect the appliance and contact the manufacturer.
Replacement Parts
Coal bed
COA4240
Pebble bed
PEB4240
Log Bed
LOG4240
Coal front
COA4241
Pebble front PEB4241
Log Front
LOG4241
Pilot Manual Control
Nat Gas - P4-41 or OP9110
LPG – P4-51
Remote control
Nat Gas – P502
LPG – P503
Injector Manual Control
Nat Gas – 300
LPG – 90
Remote control
Nat Gas – 180
LPG – 85
