8
15.
Oxygen Depletion Pilot System
There is a highly sensitive oxygen depletion sensor designed into the pilot light. If any part is damaged the
entire unit
must
be replaced using only genuine spare parts as similar looking parts from other appliances
may well give inferior performance. If the fire repeatedly trips off in operation the oxygen depletion system
may be operating and a qualified engineer should investigate this.
16.
Instructing the Customer
The installer should instruct the customer on the operation of the appliance and handover all instruction
leaflets.
The customer must be made aware of the need for regular servicing of the appliance, this will normally be
once a year.
The customer should also be made aware that no rubbish should be thrown into the firebed and that
purpose provided ventilation should be checked regularly.
17.
Servicing Instructions
Before commencing any servicing, ensure that the gas is isolated and the appliance is cool.
Cleaning – 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‘.
The coals contain refractory fibre (RCF). Excessive exposure to these materials may cause temporary
irritation to the eyes, skin and respiratory tract; consequently, it makes sense to take care when handling
these parts to ensure that the release of dust is kept to a 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. Protective
clothing is not required, but normal hygiene rules of no smoking, eating or drinking in the work area should
be followed.
Controls – The system for monitoring the oxygen supply to the burner is not adjustable and must not be put
out of operation. Should the oxypilot system need to be replaced, the original manufacturer’s parts must be
used.
Injectors
–
Only
original
manufacturer’s injectors must be used.
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. A combustion analysis check should be carried
out using an analyser to BS7967 and sampling 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.
Light the fire using the method in the instructions and ensure that the pilot lights consistently and the pilot
flame envelopes the thermocouple evenly, it is located at the front on the right-hand side.
The pilot should hold in 6-10 seconds. Turn control to main burner, this should light smoothly within 10
seconds. Ensure the valve gives adequate turn down and the thermostat bulb reduces the burner rate to off
when heated.
Locate thermostat bulb in a cool place off the appliance and preferably outside of any inglenooks, to ensure
it is sensing room air temperature.
Run the appliance for 10 minutes, ensuring burner flames settle evenly.
The gas manifold pressures are factory pre-set using highly accurate equipment, and
must
not be altered.
The catalyst is unlikely to need replacement during the life of the heater. The appliance should be inspected
before use and at least annually by an authorised service person. More frequent cleaning may be required
due to accumulation of lint and dust from carpeting etc.
