27
Grant Vortex Outdoor Module
6 - COMMISSIONING
Refer to Fig. 18 for boiler controls
5 Check that all system controls are calling for heat and
turn the boiler thermostat to maximum. Switch on the
electricity supply.
Note: The boiler will start as soon as the electricity
supply to it is switched on.
6 The burner fan should start and the burner should
light within about 20 seconds. If the burner does
not light and the 'Lock-out' reset button lights, wait
for about 45 seconds then press the reset button to
restart the ignition process. This procedure may
have to be repeated several times during first
lighting.
7 With the burner alight, check the fuel pressure.
Refer to the Technical Information, Section 3.3.
Adjust the pressure if necessary - see Fig. 17.
8 Operate the boiler until it reaches normal operating
temperature. Check oil supply/return pipe 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.
It is important that the following commissioning
procedure is carried out to ensure safe and efficient
operation of the boiler.
Note: Check that the baffles are in position and
that the cleaning cover is correctly fitted and a
good seal made.
IMPORTANT:
Check that the turbulators are in position and that
the ends are vertical (see Fig. 21).
1 Check that the water system has been vented (and
pressurised if sealed system) and there are no
leaks.
Ensure the automatic air vent on the condensing
heat exchanger is open.
2 Check that all fuel line valves are open.
3 Remove the plastic burner cover (two screws) if it
was not previously removed.
4 Connect a combined vent manifold and pressure
gauge to the pressure gauge connection port on the
oil pump. See Fig. 17. Open the vent screw on your
vent manifold to vent the supply while the pump is
running.
Fig. 18
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