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11.
SERVICING INSTRUCTIONS
As with all gas appliances the unit must be serviced at least once per year, preferably at
the beginning of the heating season.
All servicing must be carried out by a qualified
service person.
Before commencing any servicing, ensure that the gas is turned off to the appliance and
that the appliance is cool.
Cleaning – If required the casing should be wiped with a cloth dampened in soapy water.
The glass may be cleaned with any non-abrasive cleaner such as ‘hob brite‘.
Unscrew the decorative frame to remove. Unscrew the four screws holding the glass,
remove and place thoughtfully to avoid damage or injury.
Carefully remove the loose chippings and remove any dirt with a soft brush (paint brush)
and clean the burner and associated parts using a vacuum cleaner. Take particular care to
remove all debris around the pilot light.
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. Normal hygiene rules of not
smoking, eating or drinking in the work area should be followed.
Disconnect the gas supply to the appliance.
Clean around all air inlet grills 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, see section 1 for identification. 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 access cover & check the tightness
of the thermocouple connection into the valve and test ignition leads.
Examine the fire casing, the firebox and catalytic converters for obvious signs of damage
or degradation. Clean out any dirt or dust accumulated in the bottom of the fire.
Reassemble in reverse order.
Test all joints for leaks.
Following the instructions, re-lay the chippings (if used) 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
after approximately 10 seconds & turn the main burner on, this should light smoothly
within 10 seconds. Ensure the valve turns down by double clicking the low flame button.
The gas manifold pressures are factory preset using highly accurate equipment and do not
normally need adjustment.
Run appliance for 15 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.
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