Commissioning; Servicing; Procedure - Trianco Contractor WM70 HE INTERNAL User, Installation, Commissioning & Servicing Instructions

9. COMMISSIONING

The burner must be commissioned by a qualified OFTEC-
registered technician, and a CD/10 form completed.
It is the responsibility of the installer to ensure the boiler is
correctly commissioned. Failure to do so will make the boiler's
guarantee and any extended warranty null and void.
Although all burners are factory-tested before despatch, due to
individual site conditions they will usually require further
adjustment after installation to achieve the readings specified
in the burner details leaflet.

PROCEDURE

1. Switch off electrical and oil supply and ensure boiler is full
of water. Ensure all isolation valves are open.
2. Check that all baffles are correctly positioned (fig 29).
3. Disconnect oil line(s) from burner. Run off a small quantity
of oil. Check for a clean, air-free supply and reconnect.
4. Check system controls are in the ON position. Ensure
boiler stat and any room stats are calling for heat. Switch
on the electrical supply; the burner should now start.
Note: the burner may lock-out upon first firing due to air in the
pump. Should this occur, wait for one minute before pressing
the burner reset button. Should lock-outs persist, the air can be
driven out of the oil supply via the pressure gauge connection
on the pump.
5. Start and stop the burner several times until the burner
cuts out sharply; this will indicate that any remaining air
has been expelled from the oil supply.
6. Allow to burner to run for fifteen minutes before using a
flue gas analyser to take a CO
sampling point on the baffle access cover, or the terminal.
Compare with the readings specified in the burner details
leaflet and adjust the air setting as necessary. Ensure the
flue gases are smoke-free.
7. If the system is not to be put into immediate operation,
isolate the electrical and oil supplies. If there is a
possibility of the water in the system freezing, this should
be drained.
HANDING OVER
After satisfactorily completing the boiler installation and
commissioning, a thorough check of the system should be
made, and the use of any boiler and system controls
demonstrated to the end-user. All instructions should be left
on-site and advice given as to the need for an annual service.
reading from either the
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10. SERVICING

IMPORTANT: ISOLATE THE ELECTRICAL SUPPLY TO THE
BOILER BEFORE SERVICING.
Before carrying out the service, please read the health and
safety information given at the start of this manual.
To maintain the boiler's high thermal efficiency and ensure
reliable operation, the appliance should be serviced annually
by a qualified OFTEC-registered technician. Electrical work
should be carried out by a qualified engineer. A CD/11
servicing and commissioning form should be completed and
left with the appliance on-site.
If the boiler is in use all year round, the best time for the
service is before the start of the heating season. Where the
boiler is shut down for the summer months, the service should
be carried out as soon as is possible after the end of the
heating season.
OIL TANK
Open the tank drain-off and allow any accumulated water and
sludge to drain away.
LINE FILTERS
Turn off the oil supply and remove the filter bowl. Wash the
filter clean with kerosene.
The following checks should also be carried out:
1. Ensure the air inlets on the flue terminal are not obstructed
or blocked.
2. Ensure all external controls are working correctly.
3. Ensure all ventilation openings are not obstructed, and are
of an adequate size.
4. Inspect all boiler connections for soundness.
5. Inspect the flexible oil line(s), and replace where
necessary.
CONDENSATE PIPEWORK & TRAP
The condensate pipework and trap should be inspected as part
of the annual service schedule.
Ensure there are no blockages within the condensate pipework
and the 'U' trap.
When complete, recheck the integrity of the pipework joints by
pouring a small amount of water into the fill point on the
condensate unit.
Failure to ensure the retention of water will result in the
incorrect operation of the boiler and potentially damage the
condensate pipework.
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