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INSTALLATION & SERVICING INSTRUCTIONS FOR WORCESTER BOSCH
21
COMBUSTION CHAMBER
COMBUSTION CHAMBER
8-716-106-256a (08.05)
Combustion chamber:
1 Release retaining nuts and washers (B).
Remove combustion chamber access door
(A).
2 Ensure the baffles (C) and baffle retainer (D)
are correctly fitted for the boiler output as shown
in the plan view opposite.
3 Refit combustion chamber door (A).
Secure with nuts and washers (B) and tighten
until the door is firmly secured, do not overtighten
the nuts.
4 Unscrew screws (E) and remove flue manifold
access cover (F).
5 Check that all the baffles (G) and baffle retainer
(H) are correctly fitted to the secondary heat
exchanger.
18/25kW
Plan sectional view
2
E
F
4
D
C
A
B
1
3
H
G
5