Glow-worm hxi and Gas Valve - Manual (Page 41)

41 0020008153-05
13 Replacement of Parts
13.10 Viewing Window
For access, refer to section 13.1.
Refer to diagram 13.4.
Remove circlip.
Remove steel washer.
Remove glass.
Remove fibre washer.
Replace in reverse order.
13.11 Heat Exchanger
Refer to Manual Handling section on page 5.
For access, refer to section 13.1.
Refer to section 11.3 for removal of the fan, gas valve and
burner assembly.
Drain the boiler.
Remove the clip securing the clear condense pipe to heat
exchanger.
Pull to remove the clear condense pipe out of the bottom of the
heat exchanger.
Undo the two nuts of the flow and return pipes from the heat
exchanger, see diagram 13.5.
Move the pipes away from the heat exchanger.
Loosen the three heat exchanger securing screws and clamps
(two at the top and one at the bottom) to remove the heat
exchanger, see diagram 13.5.
CAUTION: There will be water in the heat exchanger.
Remove clear condense pipe connector from bottom of heat
exchanger.
13.12 Flue Hood
For access, refer to section 13.1.
Remove heat exchanger as per section 13.11.
Remove the two securing screws and pull the flue hood down
and away from the flue hood bracket and flue elbow, see
diagram 13.6.
13.13 Heating Flow Thermistor
For access, refer to section 13.1.
Refer to diagram 13.7.
Remove the electrical connections from the thermistor.
Remove the retaining clip from the flow pipe.
Remove the thermistor from the retaining clip.
Note that the polarity of the wiring to thermistors is unimportant.
13.14 Heating Return Thermistor
For access, refer to section 13.1.
Refer to diagram 13.7.
Remove the electrical connections from the thermistor.
Remove the retaining clip from the flow pipe.
Remove the thermistor from the retaining clip.
Note that the polarity of the wiring to thermistor is unimportant.
Diagram 13.7
RETURN
PIPE
HEATING FLOW
THERMISTOR
HEATING RETURN
THERMISTOR
Diagram 13.5
FLOW AND
RETURN
PIPE NUTS
SECURING
SCREWS
AND
CLAMPS
(3 OFF)
OVERHEAT
THERMOSTAT
FLOW
PIPE
11411
FLUE HOOD
SECURING
SCREWS
Diagram 13.6
FLUE HOOD
BRACKET
11602
11404