Flue Options - Potterton Gold HE A Range Installation & Service Instructions Manual

Plume Displacement Kit 60 /100 Ø
1M Extensions, 45° & 93° bends are
also available - see Section 9.0
NOTE: Horizontal flue pipes should always be installed with a fall of at least 1.5°
from the terminal to allow condensate to run back to the boiler.
This bend is equivalent to
1 metre
A
© Baxi Heating UK Ltd 2008
Horizontal
Flues
C
B
This bend is equivalent to
X
1 metre
Total equivalent length =
A+B+C+2x90°Bends

8.0 Flue Options

8.1 Horizontal Flue Systems
1. The standard flue is suitable only for horizontal termination
applications.
2. All fittings should be fully engaged. The approximate
engagement is 40mm. Apply soap solution to the seal on
Y
each fitting to aid assembly.
X
3. Maximum permissible equivalent flue lengths are:-
Horizontal Concentric
4. Any additional "in line" bends in the flue system must be
taken into consideration.
Their equivalent lengths are:-
Concentric Pipes:
Twin Flue Pipe
4. The elbow connected to the boiler adaptor is not included
in any equivalent length calculations.
5. The illustrations opposite show examples of permissible
flue systems.
NOTE: Flue length is measured from point X to Y as
shown.
Y
(60/100) (80/125)
10 metres 20 metres
135° bend 0.5 metres
93° bend 1.0 metres
135° bend 0.25 metres
91.5° bend 0.50 metres
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