Technical data

11.0 Servicing the Boiler

11 .1 Annual Servicing

1. For reasons of safety and economy, it is

recommended that the boiler is serviced annually.

Servicing must be performed by a competent

person.

2. After servicing, complete the relevant section of

the “Benchmark” Installation, Commissioning and

Service Record Log Book. This should be in the

possession of the user.

3. Ensure that the boiler is cool.

4. Ensure that both the gas and electrical

supplies to the boiler are isolated.

5. Slacken the facia securing screws and lift the

outercase panel so that its securing tabs are clear

of the facia. Remove the panel (Fig. 39).

6. Remove the facia securing screws and hinge

the facia panel down.

7. Remove the screws securing the inner door

panel. Lift the panel slightly to disengage it from

the studs on top of the case (Fig. 41).

8. Note the positions of the two sensing tubes on

the outlet elbow and three wires on the fan motor

and remove them (Fig. 40).

9. Slacken the screws on the outlet sealing collar.

Ease the collar upwards as far as possible

(Fig.40).

10. Remove the four screws securing the

combustion box door and remove the door

(Fig. 41).

Fan Wires

Fan

Sensing Tubes

Outlet Sealing

Collar

Case Front Panel

Ease Outlet Sealing

Collar Upwards

Fig. 39

Facia Panel

Securing Screws

Combustion

Box Door

Fig. 41

Fig. 40

Inner Door

Panel