21
E
F
B
A
D
C
Fig. 24
6.14 MAIN HEAT EXCHANGER (fig. 25 & 26)
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. 25:
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and withdrawn from the appliance.
Fig. 25
C
A
B
D
E
Fig. 26
A
B
Fig. 26:
To remove the fan burner assembly
(A)
locate and
remove the 3 external nuts
(B)
. Replace in the reverse
order. Ensure all seals are in good condition, taking care
to ensure they are replaced correctly.
C
Fig. 27
A
B
B
A
Fig. 28
6.15 CONDENSE TRAP REMOVAL (fig. 27)
Carry out component removal procedure as described in
6.4. Disconnect the 2 upper rubbers condense pipe
(A)
.
Remove the pin
(B)
that secures the trap to the air box
plate. Disconnect the lower rubber condense pipe
(C)
from
the condense trap. Carefully remove the condense trap.
Replace in the reverse order.
6.16 FLUE COLLECTOR REMOVAL (fig. 28)
Carry out component removal procedure as described in
6.4. Unclip and remove the air chamber front and left side
covers. Locate and remove the screw
(A)
that secures
the flue gas analysis test point cover
(B)
. Gently pull down
and to the left and ease the flue collector from its location.
Replace in the reverse order.