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REPLACEMENT
OF
PARTS
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15.1
i'f--
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18.2
--·
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•
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REPLACEMENT
OF
PARTS
•
•
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•
•
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•
•
15.
Fan
15.1
RemoYe
3
screws
(A)
retaining mixing
chamber.
15.2
Remove
2
screws
(B)
retaining the fan
to
the
air/gas manifold
.
15.3
Remove screw
{C)
fetaini~
plate and
remove
.
•
Re--assemble with new
fan
ensuring seals
are
correctly
fitted
16. Electrode assembly
•
Disconnect spark electrodes and
flame
sensor
connection.
•
RemoYe damping plate
(0~
•
Remove spar1<1fla11e electrode
assemb~
(E)
from
heat exchanger.
17. Burner
•
RemO¥e
seal
(F)
flom
the top of
the
heot
exchanger.
•
RemoYe
burner
(G)
.
•
Replace new burner in cor-rect position
•
•
Ensure that bumef tab
fits
correctly Into
hole.
•
Ensure that the seal is replaced with a new ona
18.
Heat
Exchanger
•
Isolate flow and return valves then
drain
the
boiler.
•
Remove siphon.
1&1
RemoYe clip
from
plastic elbow on the flow
pipe and
pull flow
pipe aW8/'f
from heat
exchanger.
1&2
Remove plastic nut
from
the
bot1om
of
th&
boiler.
1&3
Rotate
lever
to release
return
pipe.
18.4
Undo flue connection from
sump.
•
Pull heat exchanger assembly
up
to
dear.
•
Reassemble and check combustion as
stated in the
gas
convei'Slon
section.
~----
-
---
18A
'
' •
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•
•
•
•
•
•
•
•
•
--·
--·
INsw.utlOii A SEIMCINCl
lriSTRUCTICNS FOAW!:IFCESTER
GAEEHSTA~
l~
~~~·
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