40
-
Installation & Servicing
SERVICING
59 BURNER REMOVAL -
W45, W60, W45P AND W60P
1. Remove the jacket front panel. Refer to Frame 57.
2. Remove fan, burner and gas valve assembly. Refer to
Frame 58.
3. The burner can now be removed.
The burner can be cleaned using a soft brush, but only on
the back face. The metal fibre surface must not be
brushed. If the burner is showing any signs of damage it
should be replaced.
4. After cleaning the burner, the sealing gasket can be re-
used providing it shows no sign of damage. If it is
damaged it must be replaced. On models with a ribbed
gasket, ensure that it is correctly retained within the burner
hood.
5. Reassemble in reverse order.
6. Check the operation of the boiler. Refer to Frame 55.
58 REMOVAL OF FAN, BURNER AND GAS VALVE ASSEMBLY
-
W45, W60, W45P AND W60P
1. Remove the jacket front panel, Refer to Frame 57.
2. Disconnect the electrical connections from the gas valve.
3. Disconnect the electrical connection from the fan.
4. Undo the gas valve nut and retain the fibre washer.
5. Remove the eight nuts and washers securing the assembly to the
combustion chamber.
6. Pull off the H.T. lead to the spark/detection electrode.
7. Carefully remove the complete assembly taking care not to damage
the spark/detection electrode.
8. Re-assemble in reverse order. The burner sealing gasket can be re-
used providing it shows no sign of damage. The eight nuts and
washers should be fitted following a diagonal tightening sequence
twice. The nuts should be secured firmly. Replace the fibre washer
as necessary.
9. Check the operation of the boiler. Refer to Frame 55.
5
5
4
im
25
14
Fan
60 REMOVAL OF FAN, BURNER AND GAS VALVE ASSEMBLY -
W80/W80P
1. Remove the jacket front panel, refer to Frame 57.
2. Disconnect the electrical connections from both gas valves.
3. Pull off the high and low pressure sensing pipes from the
assembly.
4. Disconnect both electrical connections from the fan.
5. Undo both gas valve nuts and retain the fibre washers.
6. Undo the gas pipe connector nut, retaining the fibre
washer, and remove the upper gas pipe.
7. Pull off the H.T. lead to the spark/detection electrode.
8. Remove the eight nuts and washers securing the
assembly to the combustion chamber.
9. Carefully remove the complete assembly taking care not to
damage the spark/detection electrode with the assembly.
10. Re-assemble in reverse order. The burner gasket can be
re-used provided it shows no signs of damage. The eight
nuts and washers should be fitted following a diagonal
tightening sequence twice. The nuts should be secured
firmly. Replace the fibre washers as necessary.
6
8
3
3
8
5
(Red)
(Blue)
im 2506
11. Check the operation of the boiler. Refer to Frame 55.
Burner hood
Combustion
chamber
Gasket
(early models
only)
Gasket Ribbed
(later models
only)
Burner
im 5765
3
SER
VICING
Summary of Contents for imax W45
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