B
E
1
4
F
E
3
H
G
2
1
C
A
B
D
N
L
K
J
J
4
K
M
REFITTING COMPONENTS
1
4
Align burner combustion head (A) into boiler
housing tube with gasket (B) correctly fitted.
4
Push firmly down to compress the gasket (B).
4
Tighten burner retainers (C) sufficiently to
ensure a good seal.
IMPORTANT: Ensure the gasket is a good
seal between the burner combustion head
and the boiler housing to prevent flue gases
escaping from the combustion chamber
into the room.
4
Attach air duct and tighten clip (D) to
secure to the burner air intake.
2
4
Refit the expansion vessel (E) onto the
support bracket (F) taking care not to kink
the flexible hose or snag the thermostat
capillaries.
3
4
Plug burner lead (G) into control box (H).
4
4
Lift the control box upwards ( J ).
4
Rotate the box towards you (K).
4
Slide back into position (L).
4
Secure in place with screws (M).
REFITTING COMPONENTS
INSTALLATION & SERVICING INSTRUCTIONS FOR WORCESTER GREENSTAR HEATSLAVE 12/18-18/25-25/32
6 720 802 432 issue A 04/2012
29
IN
ST
AL
LA
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