Grant Vortex Eco - Running the Boiler and Adjustments

Commissioning
39
1
0.3 Running the Boiler
1. Re-light the boiler and allow it to run
for at least 20 minutes.
2. Check the smoke number, if
satisfactory check the CO
2
. Set the
CO
2
to the value given in Section 2.3
f
or the boiler concerned.
3. Turn the air control knob on the
burner to adjust the burner air
damper (see Figure 10-3) as
required. Turning the knob
anti-clockwise closes the damper
and increases CO
2
level. Turning the
knob clockwise opens the damper
and reduces CO
2
level.
4. Re-check the smoke number if the
damper has been moved. Under no
circumstances must the smoke
number be above 1.
Figure 10-3: Thermostat phial position
!
NOTE
It is important that the air damper is
correctly set.
5. Check the flue gas temperature.
Check that both the boiler overheat
and boiler control thermostat bulbs
are correctly located in their
respective pockets. For location of
thermostat pockets, refer to
Figure 10-3.
6. Also check the condition of both
thermostat capillaries, i.e. that they
are not damaged, broken or kinked,
and that they are not trapped or
crushed between any internal boiler
components.
!
NOTE
!
NOTE
After commissioning the boiler
complete the Commissioning Report
in the front of this manual and the
OFTEC CD/11 commissioning report.
Leave the top copy with the User and
retain the carbon copy.
1
0.4 Balancing the System
1. 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.
2. Switch off the boiler.
10.5 Completion
1. With the 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.
2. A suitable central heating system
inhibitor must be added to protect
the system against the effects of
corrosion.
If the boiler is to be left in service with
the User, set the controls, remote
programmer and room thermostat to
the User's requirements.
If the boiler is not to be handed over
immediately, close the boiler fuel supply
valve and switch off the electricity
supply.
I
f there is any possibility of the boiler
being left during frost conditions,
then the boiler and system should be
drained.
To allow the boiler to be commissioned
and serviced correctly a combustion
test point is provided on the front
cleaning door.
The CO
2
and smoke test may all be
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
cleaning cover 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 be
measured only outside through the low
level flue terminal. For high level and
vertical balanced flues the reading may
be taken from the flue test point
provided . Refer to Section 2.3.
For Conventional flue draught
measurement and efficiency a test point
is provided in the conventional flue
adaptor.
!
CAUTION