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11.9 Refitting the Burner
Before re-fitting the burner, check the
condition of the burner door gasket.
Replace if necessary.
•
With the gasket correctly located,
re-fit the burner to the combustion
chamber door.
•
Carefully insert the burner brazier
through the opening and locate
the holes in the burner flange onto
the M8 studs (on either side of the
burner).
•
Secure the burner to the door
with the two M8 nuts previously
removed.
•
Re-connect the three plugs to their
corresponding sockets on the left
side of the burner. Ensure that
each plug is fully pushed home
until the small catch clicks into
place. Refer to Figure 11-10.
•
Check the condition of the pellet
delivery hose and ensure it forms
an air tight seal each end.
•
Check for any damage to the hose
and replace if necessary.
A damaged pellet delivery hose
can allow a back draught through
the boiler, resulting in the pellet
tube (burn-back) thermostat
operating and shutting down the
burner.
•
After completing the Safety Device
Checks (refer to Section 11.13),
re-fit the burner cover and tighten
the four screws to secure in place.
11.10 Condensate Disposal
System
11.10.1 Condensate Trap
Disconnect the condensate disposal
system from the outlet at the back
of the boiler. Check that the boiler
condensate outlet is clear. Remove any
blockage or ash build-up.
Remove the condensate trap (supplied
with the boiler) from the condensate
disposal system. Dismantle and check
the condition of the trap.
Thoroughly clean out the trap to remove
any deposits and re-fit to condensate
disposal system.
Reconnect the disposal system to boiler
outlet.
11.10.2 Condensate Disposal Pipe
Check entire length of discharge pipe,
for any leaks or blockages. Clean or
replace as necessary.
Check any other traps in the condensate
disposal pipework. Dismantle and
thoroughly clean to remove any
deposits. Re-fit to condensate disposal
system pipework.
Check that any outlets to a gully or
hopper are not obstructed. Remove any
blockages.
11.10.3 Condensate Pump (if fitted)
If a condensate pump is fitted to the
system, check:
•
The condition of the holding tank.
Thoroughly clean to remove any
deposits.
•
Operation of the overflow cut-out
float switch.
•
The pump is operating correctly.
11.11 Cleaning Function Test
Test the automatic heat exchanger
cleaning functions as follows:
•
Check the
ON/STANDBY
switch,
on the boiler control panel, is set to
STANDBY
.
•
Re-connect the 5-way plug (on the
lead from the hopper) to the socket
at the left rear of the boiler. Refer
to Figure 11-1.
•
If a double boiler installation,
re-connect the 5-way plugs to both
boilers.
•
Re-connect the 4-way plug to the
socket (on the flying lead) at the
rear of the hopper.
•
Replace the fuse in the 13A fused
spur and switch on the electrical
supply to the hopper and boiler.
The burner fan should briefly run.
•
Press and hold down the
‘CLEANING TEST’
switch on the
boiler control panel for about 60
seconds.
•
To end test of cleaning functions
- release switch to automatically
reset cleaning function back to
‘AUTO’
.
!
NOTE
The condensate trap(s) and
condensate outlet MUST be checked
on EVERY service and cleaned
as necessary. Failure to regularly
check and clean the condensate
trap (or traps) may result in damage
to the boiler and this will not be
covered by the product guarantee.
!
NOTE
Note that setting this switch to
‘TEST’ does NOT operate the burner
brazier cleaning function, but only
that for the two heat exchangers.
Ensure that fingers are clear of all
moving parts inside the top of the
primary heat exchanger BEFORE
operating ‘CLEANING TEST’ switch.
!
WARNING
