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12 COMMISSIONING & SERVICING
12.1 Commissioning
Note: It is the responsibility of the installer to ensure that the boiler is properly
commissioned by an OFTEC trained and registered technician. Failure to do so WILL
invalidate ALL warranties.
Before firing ensure that all the baffles are in place, as they may have been displaced during
transit; Refer to the General Information section. Switch the boiler on, ensuring all controls are
calling for heat.
The oil pump pressure must be checked by fitting a pressure gauge to the pump pressure port.
If necessary the pressure should be adjusted until it corresponds with the value in the Technical
Data section for the required output. Using a smoke pump, check the smoke number. It should
be zero.
Using a flue gas analyser, check the CO
2
content and the flue gas temperature once the boiler
is hot. Testing while the boiler is still relatively cold gives inaccurate results and leads to
incorrect adjustments being made.
Where a balanced flue has been fitted ensure the air duct connecting the flue and burner has
been properly connected before commissioning.
Note: All product warranties will be invalidated if the appliance is not commissioned by a
Warmflow or OFTEC trained and registered technician and the commissioning certificate
of the OFTEC Boiler Passport completed and returned to Warmflow within 30 days from
the date of installation and 90 days from the date code stamped on the appliance.
Additionally, to comply with the building regulations, the boiler passport or OFTEC form CD11
should be completed and a copy left with the householder.
12.2 Servicing
12.2.1 General Requirements
The appliance must be serviced annually by a Warmflow or OFTEC registered service
technician in accordance with the recommendations laid out in OFTEC’s Technical Book 2:
‘Domestic & Light Commercial Servicing and Commissioning – Requirements for Oil Fired
Systems – Pressure Jet Appliances’.
Additionally, when servicing, special attention MUST be paid to the condition of the oil nozzle,
flexible oil line, fuel filter, door insulation, sealing rope, expansion vessel (inc. pre-charge) and
the secondary heat exchanger door seal. If found to be defective, they MUST be replaced.
Flexible oil lines must be replaced if out of their guarantee period. If doubt exists as to the
guarantee period expiry date of the flexible oil lines, or if their integrity is uncertain, they MUST
be replaced as part of the service.
The operation of boiler appliance safety controls and devices such as high limit thermostats,
pressure relief valves and fire valves MUST be assessed. If found to be defective, they MUST
be replaced.
N.B.: Where they exist, wheel-head fire valves MUST be replaced with a remote acting type.
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