Supplied By www.heating spares.co Tel. 0161 620 6677
20
6.14
FLUE FAN & MIXER (fig. 24)
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. 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.
6.16
MAIN HEAT EXCHANGER (fig. 26 & 27)
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. 26: Slacken the gas pipe (A) at the air box
connection and swing/rotate of the fan assembly.
Fig. 24
Fig. 22
6.12.1 INJECTOR (fig. 22)
Carry out component removal procedure as
described in 6.4. Unscrew and remove gas pipe
connections (A & E). Locate and remove the
injector (F) inside the pipe. Replace in the reverse
order. Check and adjust burner pressure settings.
WARNING, A GAS SOUNDNESS CHECK MUST
BE CARRIED OUT.
6.13
ELECTRODES & CONDENSE SENSOR (fig. 23)
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 spark and sensing electrodes and
remove. Remove the retaining nut (C) for condense
sensor (D) and remove.
C
D
A
F
B
E
B
A
C
D
6.15
BURNER (fig. 25)
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
(D). Disconnect the electrode leads and ancillary
wiring from their respective connectors. Remove
the retaining screws (A, fig. 24) for sensing
electrode and remove. Remove the retaining nut
(C, fig. 24) for condense sensor (D, fig. 24) 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the burner (E) can be withdrawn from the heat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.
A
B
E
C
D
Fig. 23
E
F
B
A
D
C
Fig. 25
