Extended Flue Installation - Worcester GREENSTAR HIGHFLOW 440CDi Instruction Manual

2m
1m
52mm
C
TOP
B
A
D
D
G
Clip
H
K
K
C
B
N
B
K
INSTALLATION & SERVICING INSTRUCTIONS
8 716 115 219c (03.2010)
104mm
TOP
A
F
G
H
J
B
C
L
TOP
M

EXTENDED FLUE INSTALLATION

NOTE: to ease assembly of the flue components,
grease seals lightly with the solvent-free grease
supplied.
Check all the seals are seated properly in the grooves
provided and are in good condition.
All flue joints must be sealed to prevent leakage of
condensate and flue products.
All horizontal flue sections must rise by
at least 52mm for each metre away from
the boiler to ensure that condensate
flows back into the boiler for safe
discharge via the condensate waste pipe.
Installing an extended flue:
1 Slide a support clamp (C) (not supplied)
B
onto a flue extension (B) as shown.
2 Secure connector (A) to flue extension
(B) using two screws (D).
E
3 Support the weight of flue extension (B)
and position connector (A) with label
marked 'TOP' uppermost to align with the
three holes in the boiler inner casing (E).
Secure using three hexagonal bolts (F).
4 Push-fit adaptor (G) into elbow (H) until
secured by the clip.
5 Push-fit the adaptor (G) into the inner
flue extension (B) and push elbow (H) into
B
flue outlet (J) until secured by the retaining
clips.
E
6 Slide a support clamp (C) (not supplied)
onto additional flue extensions (B).
Working from the boiler, fit the
extension/s with support clamp/s as
required, to take the weight of the flue.
Drill two holes (180° apart if possible)
through the outer flue tube of each
extension taking care NOT to drill the inner
flue tube and secure with screws (K) as
shown.
7 Slide the inner wall seal (L) onto terminal
(N).
If fitting from inside the building; slide
the outer wall seal (M) onto terminal (N)
as shown.
8 Position terminal assembly (N) through
the flue opening in the wall to the outside
of the building by the distance shown and
then pull back to create a seal..
9 Fit terminal assembly (N) into the last
extension (B).
The flue terminal (N) MUST be fitted
with the label 'TOP' uppermost to allow
the correct fit and use of the plume
management system.
Drill the outer flue tubes and fix with
screws (K).
10 If fitting from the outside of the building;
M
slide the outer wall seal (M) onto terminal
(N).
EXTENDED FLUE INSTALLATION
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