Supplied By www.heating spares.co Tel. 0161 620 6677
21
6.16
FLUE FAN fig. 27
Carry out component removal procedure as de-
scribed in 6.4.
Unclip and remove the air chamber cover, gently
pull the cover towards you before lifting and
disengaging. Locate and remove the six screws
that secure the front combustion cover, then
remove the cover. Disconnect the electrical con-
nections and silicone tubes attached to the fan,
noting their positions. Locate and remove the
screws (6) that secure the air pressure switch
assembly (4&5). Locate and remove the screws
that secure the flue hood and air baffle, discon-
nect the flue clip (1) from the fan-flue elbow, and
gently ease the fan (3) & flue hood assembly (2)
from its location. Locate and remove the four
screws that secure the fan to the flue hood.
Remove the fan to flue elbow. Replace in the
reverse order. Ensure all seals are in good con-
dition, taking care to ensure they are replaced
correctly.
6.17
MAIN HEAT EXCHANGER fig. 27/28
Carry out component removal procedure as de-
scribed in 6.4.
Unclip and remove the air chamber cover, gently
pull the cover towards you before lifting and
disengaging. Locate and remove the six screws
that secure the front combustion cover, then
remove the cover. Remove the air chamber side
panels if necessary by unscrewing the securing
screws. Disconnect the flow and return connec-
tions (4,5, fig. 28) on the heat exchanger. The
heat exchanger can now be withdrawn from the
appliance. Replace in the reverse order. Ensure
all seals are in good condition, taking care to
ensure they are replaced correctly.
6.18
AIR PRESSURE SWITCH fig. 27
Carry out component removal procedure as de-
scribed in 6.4.
Unclip and remove the air chamber cover, gently
pull the cover towards you before lifting and
disengaging. Locate and remove the two screws
(6) holding the air pressure switch to the air
chamber. Disconnect the electrical connections
and silicone tubes (10) attached to the air pres-
sure switch, noting their connections/positions.
Replace in the reverse order. Ensure all seals are
in good condition, taking care to ensure they are
replaced correctly.
6.19
FLOW RESTRICTOR fig. 29
Carry out the component removal procedure as
described in 6.4.
Slacken the cold water inlet pipe (A) at the DHW
flow switch and disconnect. Ease the flow restrictor
(B) from its seating. Replace in the reverse order.
Ensure all seals are in good condition, taking care
to ensure they are replaced correctly.
Fig. 27
Fig. 28
Fig. 29
6
7
8
1
3
2
9
4
5
10
A
B