11.0 SERVICING
32
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.
If a combustion analyser is available the CO
2
can be
checked and adjusted - see Section 13.0.
2. After servicing, complete the relevant Service
Interval Record section of the Benchmark
Commissioning Checklist at the rear of this publication.
3. Ensure that the boiler is cool.
4. Ensure that both the gas and electrical supplies
to the boiler are isolated.
5. Slacken the screws securing the facia panel. Lift the
outercase panel so that its securing tabs are clear of
the facia. Remove the panel, allowing the facia to hinge
down (Fig. 40).
6. 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).
7. Unscrew the sump from the bottom of the
condensate trap assembly (Fig. 41a).
8. Remove any deposits from the sump and trap. Clean
as necessary and replace the sump.
Case Front Panel
Fig. 40
Facia Panel
Securing Screws
Fig. 41
Inner Door
Panel
Publication No. 5116282
Fig. 41a
Condensate
Trap
Sump
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