20
7. COMMISSIONING
The boiler/burner
MUST
be commissioned by a qualified
technician, OFTEC trained and registered.
It is the responsibility of the installer to ensure the boiler
is properly 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,
they will usually need further air adjustment to achieve
the readings indicated in ‘Burner detail leaflet’ because of
site variations in flue draught and back pressure.
Procedure
1.
Switch off electrical supply to the boiler.
2.
Ensure boiler is full of water and all valves are open.
3.
Remove flue-cover and check that flue-baffles are
correctly positioned (See Fig 20 for baffle
arrangement).
4.
Disconnect oil hose from burner, open shut-off valve
and run off a quantity of oil into a container to check
for a clean air free supply then reconnect hose. (This
applies to single pipe gravity system only).
5.
Check that the time-switch (if fitted) is in the ON
position and room and boiler thermostats are calling
for heat.
6.
Switch on electrical supply and the burner should
start.
Note:
The burner may lock-out on first firing due to
air in the pump, if this happens, wait about a minute
before pressing reset button to restart burner. If a
further lock-out occurs, the air should be bled from
the pump pressure gauge connection.
7. Start and stop the burner two or three times until
the flame cuts off sharply - this indicates any
remaining air has been dispersed.
8.
Allow the burner to run for about 15 minutes, then
take a CO
2
reading through the sampling hole in
flue-cover. Compare the reading with that given
under ‘Burner Settings’ and adjust the air setting if
necessary to achieve the required CO
2
%. Also,
check the smoke and flue gas temperature.
9.
If the system is not going to be put into immediate
operation, the fuel supply and electricity supply
should be isolated.
If there is a possibility that the boiler will not be running
during freezing conditions, the system should be
drained down.
Handing Over
After completing the boiler installation, the installer
should make a thorough check of the system to ensure it
is completely satisfactory and demonstrate to the user
the operation of the boiler and any system controls.
All instructions should be handed to the user for retention
and advice regarding the need for annual servicing.
8. SERVICING
IMPORTANT: ISOLATE ELECTRICAL SUPPLY TO THE
BOILER BEFORE SERVICING
To maintain the boiler’s high thermal efficiency and
reliable operation, it should be serviced annually by a
qualified and registered OFTEC engineer. Electrical work
should be carried out by a qualified engineer.
If the boiler is used to provide central heating and hot
water all year round, the best time for its annual service
is just 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 possible
after the end of the heating season.
Oil tank
Open tank drain-cock to draw off any accumulated water
and sludge.
Line filters
Turn off oil supply and remove filter bowl. Wash filter ele-
ment clean with kerosene.
Important
Before commencing with service work on either the
boiler or the fuel supply please read the health and
safety information.
Before servicing the boiler carry out the following checks.
1. Ensure the air inlets on the flue terminal are not
blocked or obstructed.
2. Check to ensure external controls are working correctly.
3. Check ventilation openings are not obstructed and
are adequate for the size of the boiler.
4. Inspect all connections to boiler to ensure they are
sound, remake any joints that are showing signs of
leakage.
5. Inspect flexible oil supply lines and replace where
necessary.
Содержание EuroStar Premier 50/90 Condensing
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