35
Figure 4-4:
Flue fan/solenoid valve
plug connection
Figure 4-5:
Pellet feed auger fixing
and the neoprene gasket is evenly
compressed to give an adequate seal
between the fan box and the flanged
boiler outlet.
Replace the access panel on the rear
face of the fan box and secure with the
screws previously removed.
Fit the 5-way plug from the flue fan/
solenoid valve into the socket at the top
right rear of the boiler. Ensure that the
plug is fully pushed home. See Figure
4-4.
4.11 Pellet Feed Tube
The 2-part pellet feed tube is supplied
loose in the accessories box for fitting
on site in either one of two possible
positions, depending on the location
of the pellet hopper. The pellet tube
gasket and three fixing screws are
supplied fitted to the burner.
With hopper located on the left side
of the boiler
- the pellet feed tube must
be fitted to point towards the left side.
Refer to Figure 4-6.
With hopper located on the right
side of the boiler
- the pellet feed tube
must be fitted to point towards the right
side. Refer to Figure 4-7.
With hopper located between two
boilers
(in a ‘double boiler’ installation)
- the right hand boiler must have the
pellet feed tube pointing to the left, and
the left hand boiler must have the pellet
feed tube pointing to the right.
To fit the pellet feed tube to the burner:
•
First, remove the burner from the
combustion chamber door
•
Remove the red burner cover by
loosening the four M5 screws (two
on each side of the cover) and
lifting it off the burner.
•
Disconnect the plugs from the left
side of the burner. Loosen the four
screws (two on either side of the
burner) and lift off the red burner
cover.
•
Whilst supporting the burner,
unscrew and remove the two M8
burner securing nuts and washers,
one each side of the burner.
•
Carefully withdraw the burner from
the combustion chamber door,
taking care not to damage the
burner door gasket, and place it on
a suitable surface to work on it.
Then, fit the pellet feed tube:
•
Using a 4mm Allen key, remove
the three pellet tube fixing screws
and locking washers. Take
care not to drop them into the
rectangular pellet feed opening in
the top of the burner.
•
Check the circular gasket is
correctly positioned around the
pellet feed opening and that the
three cutouts in the gasket are
aligned with the threaded holes in
the burner.
•
Position the flange of the pellet
feed tube on the gasket.
•
Align the holes in the flange with
those in the gasket and burner
such that the open end of the
pellet feed tube points either to the
Ensure the pellet delivery hose
forms an air tight seal at each end
and that the pellet delivery hose is
not damaged. Leakage of air could
cause increased temperature in the
pellet delivery hose and result in
the pellet feed tube (burn back)
thermostat operating and shutting
down the burner.
!
WARNING
Figure 4-6:
Pellet feed tube - left-hand
hopper
Figure 4-7:
Pellet feed tube - right-
hand hopper
Figure 4-3:
Fan box access panel
