Doc No. 700070 Page 54 of 56
g: Replace in reverse order.
7.7 Injector (10) Replacement.
(See figure 6a)
a: Turn off gas and disconnect electrical supply.
b: Release the slider latches (30) from the underside of the
burner base plate (1).
c: Pull lid (2) apart and upwards from base (1).
d: remove fixing screws (37) and air shutter plate (9) from
top of burner casting.
e: Remove plug (23).
f: Unscrew brass jet (10) inside mixing chamber using 8mm
allen key and withdraw through 1/2in BSP hole.
g: Replace in reverse order.
7.8 Combustion Chamber
Viewing Window Replacement.
a: Turn off the system including the vacuum fan.
b: Unscrew dome nuts (53) remove spring washers (54).
Remove sight glass cover (50), gasket (51) and mica window
(52).
c: Replace in reverse order as shown ensuring components
are re-assembled in correct order.
