Baxi Combi 130 HE Installation And Servicing Instructions page 41

Injector Pipe
Gas Valve
Securing Screws
Boiler Side
Aluminium
Spacer
Electrical Plug
Fig. 78
Securing Nut
Sensor
Leads
Condensate
Trap
Locknut
Condensate
Drain Pipe
Fig. 79
Supplied By www.heating spares.co Tel. 0161 620 6677
Gas Pressure
Gasket
Pipe
'O' Ring
Gas Valve
Gas Inlet Pipe
Flange
13.0 Changing Components
It is necessary to remove the fan before
changing the injector pipe, condensate trap
and gas valve (see section 13. 21).
13.22 Injector Pipe (Fig. 78)
1. Remove the injector pipe by pulling out from
the 'O' ring joint in the gas valve.
2. Fit the new injector pipe and reassemble in
reverse order, applying Greasil 4000 (Approved
Silicone Grease) to both "O" rings.
13.23 Gas Valve (Fig. 78)
1. Release the facia securing screws
hinge down the facia box.
2. Loosen nut at gas inlet pipe at tap rail.
3. Undo the gas pressure pipe from the gas
valve.
4. Undo the screw and disconnect the electrical
plug from the gas valve.
5. Remove the two gas valve securing screws
from inside the air box holding the gas valve.
6. Remove the gas valve and inlet pipe from the
airbox side.
7. Remove the four screws securing the gas inlet
pipe to the valve and refit to the new valve.
8. Remove the aluminium spacer and its gasket
and "O" ring from the gas valve.
9. Fit the aluminium spacer, "O" ring and its
gasket to the new valve.
10. Fit the new gas valve and reassemble in
reverse order. Test for gas soundness. Note: It is
essential that these ensure gas soundness as
they are under negative pressure.
13.24 Condensate Trap (Fig. 79)
1. Disconnect the condensate trap from the base
of the heat exchanger.
2. Disconnect the condensate drain (outside the
boiler) from the condensate trap.
3. Undo the condensate trap lock nut.
4. Remove the condensate trap from the boiler.
5. Disconnect the sensor leads.
Fit the new condensate trap and reassemble in
reverse order.
1 / turn and
4
41