Grant EUROFLAME 50/70 User, Installation And Servicing Instructions page 30

7 With the burner alight, check the fuel pressure.
Refer to the Technical Information, sections 2.2
and 2.3. Adjust the pressure if necessary - see Fig.
19. Note that the On/Off switch (Kitchen/Utility
models only, see Fig. 30a) lights when the boiler is
switched on, but does not necessarily indicate the
burner is firing.
8 Operate the boiler until it reaches normal operating
temperature. Check oil pipes for leaks, rectifying
where necessary.
9 With the burner alight, re-check the fuel pressure and
re-adjust if necessary. Turn the boiler off, remove the
pressure gauge and replace the plug in the pump.
10 Having ensured that there are no oil leaks, replace the
burner cover. Ensure the flexible air tube is connected
to the burner (balanced flue models).
11 Relight the boiler and allow it to run for 20 minutes
then check the following:-
CO level, Flue gas temperature and Smoke
2
Number. Refer to the Technical Information in
sections 2.2 and 2.3.
A flue gas sampling test point is provided on the top
of the boiler.
12 Check the smoke number, if satisfactory check the
CO . Use the hexagonal key supplied to adjust the
2
burner air damper (see Fig. 19) as required.
Turning the screw anti-clockwise closes the
damper and increases CO
clockwise opens the damper and reduces CO
Re-check the smoke number if the air damper has
been moved.
Under no circumstances must the smoke number be
above 1.
A suitable position for the air damper is one which
gives 1% less CO than that which has a smoke
2
number of 1.
Note: It is important that the air damper is
correctly set.
13 Check the flue gas temperature.
14 Check the boiler overheat thermostat by removing
the boiler thermostat phial (the shorter one for
Kitchen/Utility models) from the pocket in the
front of the boiler shell. The boiler should switch
off on the overheat thermostat. Replace the phial.
Unscrew and remove the reset button cover, press
the reset button and replace the cover.
30
5 - COMMISSIONING
level, turning the screw
2
level.
2
Euroflame Oil Boilers
15 When the boiler has been adjusted and is running
satisfactorily, balance the central heating system by
adjusting the radiator lock shield valves. Start with
the radiator nearest the boiler and adjust the valves
to achieve the required temperature drop across
each radiator.
If thermostatic radiator valves have been installed,
check the system by-pass.
16 Switch off the boiler.
17 With the hot water system hot, check again for leaks,
rectifying where necessary. Drain the system while it
is hot to complete the flushing process. Refill and vent
(and pressurise if a sealed system) the system.
18 A suitable central heating system inhibitor must be
added to protect the system against the effect of
corrosion.
19 Replace the case top and front panel as appropriate.
Note: After commissioning the boiler you should
complete the Commissioning Report on page 2 of
these instructions.
If the boiler is to be left in service with the User, set
the controls and room thermostat (if fitted) to the
User's requirements then refer to section 6.
If the boiler is not to be handed over immediately,
close the boiler fuel supply valve and switch off the
electricity supply.
If there is any possibility of the boiler being left during
frost conditions, then the boiler and system should be
drained.
IMPORTANT NOTE:
To allow the boiler to be commissioned and serviced
correctly a combustion test point is provided on the top of
the boiler.
The CO , flue gas temperature and smoke test may all be
2
carried out using this test point. The test point is not
suitable for measuring boiler efficiency or conventional
flue draught.
When using the test point on the top of the boiler note
that the flue gas temperature reading will be higher than
that measured in the flue thus resulting in an inaccurate
efficiency reading. To obtain an accurate flue gas
temperature and efficiency, the reading can only be
measured outside through the low level flue terminal. For
high level and vertical balanced flues the reading may be
taked from the flue kit test point provided . Refer to
section 2.2 and 2.3.
For Conventional flue draught measurement and
efficiency a hole must be drilled in the conventional flue
pipe. Seal the hole after testing.