Main Mitre-AS, Инструкция по установке и обслуживанию

Страница: 16 / 18

Fig. 10
Page 8
7. TO REMOVE SLOW IGNITION DIAPHRAGM
Remove burner assembly see section 6 .
Remove four screws 23. Fig. 9 and lift off the cover.
Lift out diaphragm assembly, replace if necessary.
Re-assemble in reverse order ensuring that the brass weight is on the under side of the
diaphragm and locates in the gas chamber.
8. TO REMOVE WATER DIAPHRAGM
Turn off gas and water supply and drain unit by releasing drain screw and sealing washer 14.
Fig. 7 .
Remove case front see section 1 .
Disconnect water supply at rear of water diaphragm assembly.
Remove front retaining plate by releasing three fixing screws 19. Fig. 5 and easing free.
Remove burner assembly see section 6 . Remove union nuts 20. Fig. 5 . DO NOT lose sealing
washers. Remove two vertical screws 24. Fig. 10 . Release two horizontal screws 25. Fig. 10 by
turning each four complete turns anti-clockwise and pull assembly forwards and out of
appliance. DO NOT lose rubber sealing washer from gas connection. Release two screws 26.
Fig. 11 by turning each four complete turns anti-clockwise. Separate water diaphragm assembly
from the Flame Safety Device. Separate water diaphragm assembly by releasing five screws 22
Fig. 7 . DO NOT lose small by-pass tube when separating assembly.
When re-assembling ensure that the small by-pass tube is in position in the unthreaded hole in
the skirt of the water diaphragm assembly.