11.0 Changing Components
31
11.7
Insulation (Figs. 60 & 61)
There are four insulation pieces in the combustion
box - two side pieces, one rear and one front
attached to the combustion box inner panel.
Side Pieces
1. Remove the screws securing the fan hood.
Carefully draw the side insulation pieces out,
easing the heat exchanger sideways while
extracting each piece.
2. To replace, ease the heat exchanger sideways
and very carefully insert each piece. Ensure that
the replacement insulation is not abraded against
the heat exchanger or captive nuts.
Rear Piece
1. To change the rear piece it is necessary to
remove the heat exchanger as described in
Section 11.6.
2. The rear piece is retained by the heat
exchanger. Ensure that the replacement piece is
correctly positioned before refitting the heat
exchanger.
Front Piece
1. The front piece is attached to the combustion
box inner panel. To replace, disengage it from the
retaining tabs on the lower edge of the inner door.
2. Fit the new insulation piece by carefully locating
it behind the tabs and pushing back.
Completion
Carefully clean away any insulation from the
combustion box and reassemble in reverse order.
11.8
Temperature Sensors
(Figs. 62 & 63)
1. The temperature sensors on the store and flow
pipe are of the same type and the replacement
procedure is the same.
2. Ease the retaining tab on the sensor away and
disconnect the electrical plug.
3. Unscrew the sensor from it’s pocket. Fit the
new sensor and reassemble in reverse order. The
plug will only fit one way.
11.9
Overheat Thermostat
(Figs. 62 & 64)
1. Pull the two electrical connections off the
thermostat.
2. Remove the screws securing the thermostat to
the mounting plate on the flow pipe.
3. Reassemble in reverse order. The thermostat is
not polarised - either wire can fit either terminal on
the thermostat.
Side Insulation Piece
Combustion Box
Inner Panel
Rear Insulation Piece
Side Insulation
Piece
Temperature Sensors
Overheat Thermostat
Fig. 60
Fig. 61
Fig. 62
Fig. 63
Fig. 64
