VOKERA Compact A User Instructions - page 22
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6.14 FLUE FAN & MIXER (fig. 28-29)
Carry out component removal procedure as described in 6.4.
Remove the air chamber front cover. Locate and remove the
gas pipe locking pin (A1) and swing/rotate the gas pipe away
from the fan assembly (B1), (if necessary unscrew the gas
pipe from the gas valve G1). Locate and slacken the silencer
(H1). Locate and remove the sense electrode. To remove the
fan (E1), disconnect the electrical connections attached to the
fan, locate and remove the four screws (F1). Gently ease the
fan from its location. To remove the mixer (C1) locate and
remove the three screws (D1), the mixer can be removed after
the fan removal. Replace in the reverse order. Ensure all seals
are in good condition, taking care to ensure they are replaced
correctly.
6.15 BURNER (fig. 28)
Carry out component removal procedure as described in 6.4.
Remove the air chamber front cover. Locate and remove the
gas pipe locking pin (A1) and swing/rotate the gas pipe away
from the fan assembly (B1), (if necessary unscrew the gas
pipe from the gas valve G1). Locate and slacken the silencer
(H1), disconnect the electrical connections attached to the
fan. Disconnect the electrode leads and ancillary wiring from
their respective connectors. Locate and remove the screws
(I1) which secure the burner assembly in position to the heat
exchanger (J1). Gently ease the fan assembly out of its
location. Once the assembly has been removed, the burner
(K1) can be withdrawn from the heat engine. Ensure the seals
(L1) is in good condition, taking care to ensure it is replaced
correctly. Replace in the reverse order.
Fig. 27
6.13 ELECTRODES (fig. 27)
Carry out component removal procedure as described in 6.4.
Remove the air chamber front cover. Disconnect the electrode
leads and ancillary wiring from their respective connectors.
Remove the retaining screws (V) for electrode. Remove the spark
ignition electrode (W). Remove the flame sensor electrod (Y).
6.12 GAS VALVE (fig. 26)
Carry out component removal procedure as described in 6.4.
The gas valve must be changed as complete unit. Disconnect
the electrical plug and leads from the gas valve, slacken and
unscrew gas valve inletand outlet connections. Please note,
the sealing washers (Q) must be discarded and replaced with
new sealing washers. Disconnect the compensation pipe (R).
Unscrew gas pipe connections (S-T), the gas valve can now
be removed. Replace in the reverse order. Check and adjust
burner pressure settings.
WARNING, A GAS TIGHTNESS CHECK MUST BE CARRIED
OUT.
6.12.1 INJECTOR (fig. 26)
Carry out component removal procedure as described in 6.4.
Unscrew and remove gas pipe connections (S-T). Locate and
remove the injector (U) inside the pipe. Replace in the reverse
order. Check and adjust burner pressure settings.
WARNING, A GAS TIGHTNESS CHECK MUST BE CARRIED
OUT.
Q
Q
U
S
T
C1
D1
E1
F1
V
Y
W
H1
I1
J1
K1
L1
L1
Fig. 26
V
W
Y
Fig. 28