25
6.24.1 EXPANSION VESSEL REMOVAL (with suffi-
cient clearance above, fig. 25 & 38)
Carry out component removal procedure as de-
scribed in 6.4.
Disconnect the flue from the appliance.
Disconnect the expansion vessel from the
flexibleexpansion pipe.
Disconnect the flexible expansion pipe from the
vessel. Unscrew the nut that secures the vessel
to the frame
(I, fig. 25)
. Locate and remove the 6
screws
(A)
that secure the vessel top holding plate
(B)
, remove the plate.
The expansion vessel can now be removed.
Replace in the reverse order. Ensure all seals are
in good condition, taking care to ensure they are
replaced correctly.
6.25
FAN TRANSFORMER REMOVAL (fig. 39a)
Carry out component removal procedure as de-
scribed in 6.4.
Unclip and remove the air chamber front and left
side covers. Disconnect the fan transformer wir-
ing. Locate and remove the 2 screws
(D)
that
secure the fan transformer to the air box plate, cut
the two cable ties previewed on heat-shrinkable
insulators that protect the transformer connec-
tors. Unthread the heat- shrinkable insulators.
Carefully remove the fan transformer. Replace in
the reverse order.
ATTENTION The transformer connected, put the
heat-shrinkable insulators and fix it thorugh two
new calbe ties. The heat-shrinkable insulators
assure the correct protection from liquid penetra-
tion of transformer connector.
6.26
CONDENSE TRAP REMOVAL (fig. 39b)
Carry out component removal procedure as de-
scribed in 6.4.
Disconnect the 2 upper rubbers condense pipe
(A)
. Remove the pin
(B)
tah secures the trap to the
air box plate. Disconnect the lower rubber con-
dense pipe
(C)
from the condense trap.
Carefully remove the condense trap. Replace in
the reverse order.
6.27
FLUE COLLECTOR REMOVAL (fig. 40)
Carry out component removal procedure as de-
scribed 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.
Fig. 38
Fig. 39a
Fig. 40
B
A
Fig. 39b
A
B
D
C
A
B
