Unit installation

9.0 Changing Components
24
9.8 Gas Valve
1. Remove controls heat shield (Fig. 58).
2. Remove the screws holding the valve cover
assembly to the controls mounting bracket and
remove the assembly (Fig. 59).
3. Disconnect the electrical connections from the
valve, noting the position of each wire (Fig. 60).
4. Remove the three screws holding the burner
feed pipe to the valve, being careful not to lose
or damage the "O" ring seal (Fig. 60).
5. Undo the pilot feed pipe nut from the valve
(Fig. 60).
6. Remove the two screws holding the valve to
the controls mounting bracket adjacent to the
union nut and tailpiece (Fig. 60).
7. Remove the valve from the controls mounting
bracket (Fig. 60).
8. Remove the tailpiece and union nut from the
original valve and fit to the new one (Fig. 60).
9. Reassemble in reverse order.
9.9 Burner & Main Injector
1. Remove the lint arrestor by pulling forward
(Fig. 61).
2. Remove the four hexagon headed screws
holding the burner to the mounting plate
(Fig. 62).
3. If required the main injector can be unscrewed
from the feed pipe and replaced. The copper
sealing washer must be retained for re-use or
replace if damaged (Fig. 62).
4. Reassemble in reverse order.
Lint Arrestor
Burner
Burner Mounting
Plate
Hexagon
Headed Screws
Injector
Copper Washer
Valve Cover Assembly
Controls Heat Shield
Pilot Feed Pipe
Valve
‘O’ Ring Seal
Controls Mounting
Bracket
Electrical
Connections
Burner Feed Pipe
Tail Piece
Gas Cock
Fig. 58
Fig. 59
Fig. 60
Fig. 61
Fig. 62