Baxi Solo 3 Installation And Servicing Instructions page 40

Combustion Box Door
Fan
Fig. 116
Flexible Tubes
40
Supplied By www.heating spares.co Tel. 0161 620 6677
Fig. 114
Fan
Assembly
Flexible Tubes
Outlet Flange
Flexible Tubes
White
Pressure Switch
11.0 Changing Components
11.7
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 door. Remove the combustion box door by
pulling forward from the bottom and unhooking its
top edge (Fig. 115).
3. Disconnect the 5-pin pressure switch and fan
plug (Fig. 114). Withdraw the fan assembly by
pulling forwards from the top edge (Fig. 115).
11.8
1. Disconnect the two flexible tubes from the
venturi situated on the fan.
Fig. 115
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. 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. Fit the new fan and re-assemble all components
in reverse order of dismantling 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. 115), reconnect the new
fan wires into the connections on the electrical plug
- either wire can be connected into either
connection.
11.9
1. Disconnect flexible tubes noting their positions.
2. Remove the screw securing the pressure switch
to its bracket and unhook the pressure switch.
3. Disconnect the 3 electrical terminals from the
Grey
Black
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. 115). Ensure that the electrical terminals are
connected to their correspondingly marked tags.
Fig. 117
Changing Components (Cont)
Fan (Fig. 116)
Pressure Switch (Fig. 117)