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EcoBlue System
7219708 - 01 (04/15)
5
Before Installation
5.3.8 Horizontal Flue/Chimney Systems
1. The standard telescopic flue is suitable only for horizontal
termination applications.
2. All fittings should be fully engaged. The approximate
engagement is 40mm. Apply the lubricant supplied to the seal on
each fitting to aid assembly.
3. Maximum permissible equivalent flue lengths are:-
(60/100)
(80/125)
Horizontal Concentric
10 metres
20 metres
4. Any additional “in line” bends in the flue system must be taken
into consideration.
Their equivalent lengths are:-
Concentric Pipes:
135° bend
0.5 metres
93° bend
1.0 metres
Flue length is measured from point (i) to (ii) as shown.
The elbow supplied with the standard horizontal
telescopic flue kit is not included in any equivalent
length calculations.
Read this section in conjunction with the Flue
Installation Guide supplied with the boiler.
WARNING
SUPPORT
- All flue systems MUST be securely
supported at a MINIMUM of once every metre &
every change of direction. It is recommended that
every straight piece is supported irrespective of
length. Additional supports are available as
accessories.
VOIDS
- Consideration must be given to flue systems
in voids and the provision of adequate access for
subsequent periodic visual inspection.
Horizontal
Flues
(ii)
(i)
Plume Displacement Kit 60 /100 dia
1M Extensions 45° & 93° elbows are
also available - see the separate Flue
Guide.
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.
(ii)
(i)
This bend is
equivalent to 1 metre
Total equivalent length =
A
+
B
+
C
+
2 x 90° Bends
B
A
C
This bend is equivalent
to 1 metre