Commissioning
49
The burner display screen should
automatically go blank, as all power to
the burner has been interupted.
To make the burner operational again:
• Re-connect the lead.
• Refit the clip.
10.5.2 Combustion Chamber Door
Switch
When the burner display reads ‘WAIT
BOILER THERMOSTAT’ check the
operation of the combustion chamber
door interlock as follows:
• The interlock is activated by
opening the combustion chamber
door.
• Operate the door catch and open
the door.
• The burner display screen should
automatically go blank, as all
power to the burner has been
interrupted.
To restart the display; close the door
and fully engage the door catch to
re-make the cut-out switch. Refer to
Figure 10-8.
Closing the door will reconnect the
power supply to the burner and the
display will return, confirming that the
door interlock is operating correctly.
10.6 Burner Settings
The boiler comes with the burner
pre-set from the factory. However,
the burner settings should be
checked as part of the
commissioning process and
recorded on the Commissioning
Report form. Refer to Section 10-12.
With the electrical power to the
hopper and boiler Switched on, and
the burner ON/STANDBY switch set
to STANDBY, check that ALL burner
settings in the ‘INSTAL’ (Installer)
menu are as given in Section 9.6.
Refer to Section 9.7 for details of how
to access and check these settings.
Set the boiler temperature set point
using buttons 1 or 2 on the burner
control panel. Refer to Section 1.1 for
required flow and return temperatures.
10.7 Priming the Pellet
Feed Auger
The pellet feed auger MUST be fully
primed BEFORE attempting to start
the boiler.
Prime the auger as follows:
• Disconnect the 6-way plug (No.3),
from the pellet feed auger, from the
upper socket on the left side of the
burner. Refer to Figure 10-9.
• Disconnect the 7-way plug (No.1)
from the socket on the left side of
the burner. Refer to Figure 10-9.
• Disconnect the pellet delivery hose
from the pellet feed tube (on the
burner) and place in a container of
at least 1 litre capacity. Refer to
Figure 10-10.
• Insert the 6-way plug into the 7-way
plug. Refer to Figure 10-11. It is not
possible to connect these two
plugs incorrectly as they will only
fit together one way. The feed
pellet feed auger will now run
continuously until the plug and
socket is disconnected.
• Leave the auger running until there
is a continuous flow of pellets from
the pellet delivery hose. This will
take between 15 to 20 minutes.
• Disconnect the two plugs from
each other and the auger will stop.
The pellet feed auger is now fully
primed.
• Refit the pellet delivery hose onto
the pellet feed tube of the burner.
• Check the condition of the pellet
delivery hose and ensure it forms an
air tight seal each end. Check for
damage and replace if necessary.
Figure 10-7: Disconnecting burn-back
thermostat
Figure 10-8: Combustion door catch
Figure 10-9: Pellet feed auger plug (3)
Figure 10-10: Pellet delivery hose
Figure 10-11: Connection of the two
plugs
The interlock on the combustion
chamber door Interrupts the power
supply to the burner if the door is
opened. IT DOES NOT IMMEDIATELY
EXTINGUISH THE BURNER FLAME.
If the burner door is opened whilst
the burner is firing, there can still be
a large uncontrolled flame from the
brazier.
!
WARNING
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