46
The life of individual components vary and they will need
servicing or replacing as and when faults develop, instructions for
removal, inspection and replacement of the individual parts are
given in the following pages.
18.1 To Gain General Access
To ensure efficient safe operation, it is recommended that the
boiler is serviced annually by a competent person.
Before starting any servicing work, ensure both the gas and
electrical supplies to the boiler are isolated and the boiler is
cool.
Before and after servicing, a combustion analysis should be
made via the flue sampling point (see Section 14.3, steps 1-6).
After servicing, preliminary electrical system checks must be
carried out to ensure electrical safety (i.e. polarity, earth
continuity, resistance to earth and short circuit).
All testing and maintenance operations on the boiler
require the control panel to be lowered. This will also
require the removal of the casing.
18.1.1 Removing the front panel
:
1.
Unlock the two clamps
A
(see Fig. 48)
;
2.
Remove the front panel from the rest of the
casing
(see Fig. 49)
.
1.
Remove the front panel;
2.
Push in the tabs on either side of the electrical
box
(see Fig. 50)
and pivot the electrical box
forward.
SERVICING INSTRUCTIONS
18. Replacement of parts
Fig. 49
Fig. 48
Fig. 50
A
18.1.2 Lowering the control panel :
Summary of Contents for Minima HE System 24 Nat
Page 19: ...19 1 2 A A Fig 14 Fig 16 Fig 13 11 Installing the Boiler continued Fig 15 P P ...
Page 22: ...22 Fig 21 Fig 22 Fig 23 ...
Page 31: ...31 WIRING DIAGRAM FOR CONNECTION TO AN OPEN VENTED CYLINDER DIAGRAM B ...
Page 32: ...32 WIRING DIAGRAM FOR CONNECTION TO AN MTS UNVENTED CYLINDER DIAGRAM A ...
Page 61: ...61 24 Benchmark Commissioning Checklist ...
Page 62: ...62 25 Service Interval Record ...
Page 63: ...63 ...
