20
6.14
FLUE FAN & MIXER (fig. 28)
Carry out component removal procedure as
described in 6.4. Unclip and remove the air
chamber front and the RH side covers. Slacken
the gas pipe
(A)
at the air box connection and
swing/rotate away from the fan assembly. Locate
and remove the sense electrode. To remove the
mixer
(B)
locate and remove the three screws
(C)
.
To remove the fan
(D)
, disconnect the electrical
connections attached to the fan, locate and
remove the four screws
(E)
. Gently ease the fan
from its location. Replace in the reverse order.
Ensure all seals are in good condition, taking care
to ensure they are replaced correctly.
fig. 28
6.15
BURNER (fig. 30)
Carry out component removal procedure as
described in 6.4. Unclip and remove the air
chamber front and the RH side covers. Slacken
the gas pipe
(A)
at the air box connection and
swing/rotate of the fan assembly. Locate and
remove the 3 internal nuts
(B)
which secure the
fan assembly in position
(C)
to the heat exchanger
fig. 30
6.16
MAIN HEAT EXCHANGER (fig. 30 & 31)
Carry out component removal procedure as
described in 6.4. Unclip and remove the three air
chamber covers (front, LH, RH sides). Disconnect
all the wiring connections.
Fig. 29:
Slacken the
gas pipe
(A)
at the air box connection and swing/
rotate of the fan assembly. Disconnect the flow
(B)
, return
(C)
and condense connections on the
heat exchanger. Locate and remove the 4-screws
that secure the heat exchanger to the combustion
chamber
(D)
. Move the heat exchanger to the right
and disconnect it from the flue collector
(E)
. The
heat exchanger can now be lifted up and withdrawn
from the appliance.
A
B
E
C
D
E
F
B
A
D
C
fig. 29
C
A
B
D
E
A
C
D
fig. 27
6.13
ELECTRODES & CONDENSE SENSOR (fig. 27)
Carry out component removal procedure as
described in 6.4. Unclip and remove the air chamber
front and RH side covers. Disconnect the electrode
leads and ancillary wiring from their respective
connectors. Remove the retaining screws
(A)
for
electrode
and remove. Remove the retaining nut
(C)
for condense sensor
(D)
and remove.
(D)
. Disconnect the electrode leads and ancillary
wiring from their respective connectors. Remove
the retaining screws
(A, fig. 29)
for sensing
electrode
and remove. Remove the retaining nut
(C, fig. 29)
for condense sensor
(D, fig. 29)
and
remove. Gently ease the fan assembly out of its
location. Once the assembly has been removed,
the burner
(E)
can be withdrawn from the heat
engine. Ensure the seal
(F)
is in good condition,
taking care to ensure it is replaced correctly.
Replace in the reverse order.
fig. 31
A
B