Baxi Solo 3 PFL 30 Installation & Servicing Instructions Manual page 40

Fig. 118
Fan
Sensing Tubes
40
© Baxi Heating UK Ltd 2009
Fig. 120
Outlet Flange
(30, 40, 50 Models shown)
Flexible Tubes
Fig. 121
Grey
Black
White
Fig. 122
10.0
10.7 Changing Components (Cont)
1. To change Fan - Pressure Switch - Burner - Burner
Injector - Pilot Burner Injector - Gas Manifold, proceed as
follows:-
2. Release the four latches holding the combustion box
Fig. 119
door (Fig. 118). Remove the combustion box door by
pulling forward (Fig. 120).
3. Release the 5-pin electrical plug connecting the
pressure switch and fan (Fig. 119). Withdraw the fan
assembly by pulling forwards from the top edge (Fig. 120).
10.8 Fan (Fig. 121)
1. Disconnect the two sensing tubes from the venturi
situated on the fan.
2. Disconnect the 2 fan wires from the connection on the
electrical plug. Remove the 3 screws securing the fan to
the fan hood.
3. 30, 40, 50 models only - Remove the two screws
securing the fan outlet flange to the fan and remove.
Clean all sealing mastic from the outlet flange.
4. Fit the outlet flange onto the new fan, fix with the 2
screws and seal the outside gap between the fan body
and the outlet fan with the mastic provided.
5. 60, 70, 80 models only - When fitted, unbend the tabs
securing the fan outlet restrictor to the outlet flange on
the original fan.
6. Fit the outlet restrictor to the new fan outlet flange.
Bend the tabs over the flange to secure the restrictor.
7. Fit the new fan and re-assemble all components in
reverse order of dismantling, reconnect the new fan wires
into the connections on the electrical plug - either wire
can be connected into either connection.
10.9 Pressure Switch (Fig. 122)
1. Disconnect sensing tubes noting their positions.
2. Remove the screw securing the pressure switch to its
Fig. 123
bracket and unhook the pressure switch.
3. Disconnect the 3 electrical terminals from the pressure
switch. Note the position of the tags before removal and
reconnect in correct order.
4. Fit new pressure switch and re-assemble all
components ensuring that the flexible tubes from the fan
unit to the pressure switch are routed correctly and that
they are not kinked or flattened (Fig. 123). Ensure that the
electrical terminals are connected to their correspondingly
marked tags.
Changing Components