44
-
Installation & Servicing
SERVICING
69 VENTURI REPLACEMENT
Refer to Frame 55, then:
1. Remove the jacket front panel. Refer to Frame 57.
2. Disconnect the electrical connections from the gas
valve.
3. Disconnect the electrical connections from the fan.
4. Undo the gas valve nut and remove the fibre washer.
5. Remove the 4 nuts securing the fan to the burner hood
and lift out of the boiler.
6. Remove the 3 screws securing the gas valve to the
venturi.
7. Remove the 2 screws securing the venturi to the fan.
8. Re-assemble in reverse order using the new seals
and gaskets as supplied.
9. Check for gas soundness.
10. Only Venturi's supplied by Caradon Ideal Limited
should be used as these are factory preset and
require no adjustment.
11. Reference should now be made to Frame 52 to check
the gas rate.
12. Check the operation of the boiler. Refer to frame 55.
6
10
Fan
im 2541
Venturi
70 AIR PRESSURE SWITCH REPLACEMENT -
W80/W80P
Refer to Frame 55, then:
1. Remove the jacket front panel.
Refer to Frame 57.
2. Remove the two sensing pipes
from the air pressure switch.
3. Pull off the two electrical
connectors.
4. Remove the two self tapping
screws.
5. Replace the air pressure switch
and re-assemble in reverse order.
Note.
The electrical connectors are
connected to the terminals marked C
and NO.
6. Check out the operation of the
boiler. Refer to Frame 55.
im5562
4
2
Blue
Red
SER
VICING
Содержание imax W45
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