MAINTENANCE
19.5.6
Re-assembling the burner group
Place the burner assembly on the heat exchanger (21).
Progressively tighten the 4 nuts (12) in an alternate order.
Reassemble the silencer.
Connect the gas pipe (36) with a new gasket to the burner
group.
Connect the spark electrode connector (5) to the igniter unit.
Connect the connector to the gas valve (37) and the fan (34).
Open the appliance's gas input.
Check the tightness of the gas connection.
19.5.7
Remove the electrical connections from the thermistor (28).
i
thermistors is not important.
19.5.8
Heating Return Thermistor
Remove the electrical connections from the thermistor (26).
Remove the retaining clip from the return pipe (24).
i
thermistors is not important.
19.5.9
Gas valve
Remove the burner door (11) refering to chapter "Dismantling
the burner door".
Remove the two gas valve retaining screws (30).
Remove the gas valve (31) and the gasket (32).
Fit the new gas valve and the new gasket by repeating the
operations in reverse.
After assembly test for gas tightness and purge in
accordance with the current issue of BS6891or in IE, the
current edition of I.S.813 "Domestic Gas Installations".
Check the combustion CO2.
19.5.10
Fan
Remove the burner door (11) refering to chapter "Dismantling
the burner door".
Remove the gas valve (31) (see previous paragraph).
Loosen the 3 screws (38) located on the burner door (11).
Remove the fan (33) and the gasket (35).
Fit the new gasket (35).
Screw the new fan to the burner door (11).
- 52 -
After assembly test for gas tightness and purge in
accordance with the current issue of BS6891or in IE, the
current edition of I.S.813 "Domestic Gas Installations".
19.6
Condensate trap
a
Warning: condensate is mildly acidic. Wear
protective gloves.
5
4
3
2
1
Key
1
Condensate trap
2
Condensate outlet pipe
3
Condensate reservoir
4
Condensate reservoir retaining clips
5
Hose
Place a container under the condensate trap (1).
Remove the condensate (3) from the reservoir.
Disconnect the condensation discharge (2).
Disconnect the heat exchanger hose (5).
The condense trap will contain water, lift taking care not to spill
the water.
Remove the condensate trap (1) using the clips (4).
0020085231_02 - 05/10 - Glow-worm
1
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