31
Flue installation instructions ecoTEC 834449_13
1.
2.
A
B
+ 40 mm
13
70
27
2
2
1
1
Fig. 2.57 Cutting tubes to size
• Use a saw, tin-snips, etc. to cut tubes to size.
• Start by measuring the required length of air conduit*
(L
air
), and then calculate the corresponding length of
flue conduit (L
exhaust
) as follows:
L
exhaust
=
L
air
+ 40 mm
L
exhaust
= length of flue conduit (
B
)
L
air
= length of air conduit (
A
)
* Minimum length of air-conduit extension: 80 mm.
a
Caution!
You must fasten extensions to the ceiling or
wall using pipe clamps. Use one clamp for each
extension.
Caution!
Where extensions are used, these must be in-
stalled with a slope of 3°
±
1° to ensure that
condensate does not remain in the sleeve
(equivalent to 50 mm
±
20 mm rise per metre
length).
Caution!
The seals are sensitive to mineral oil-based
grease products. For this reason, the seals
must not be greased. If the seals need wetting
to aid in installation, use water only.
Caution!
De-burr and file down any rough edges on the
tubes before fitting in order to prevent damage
to the seals. Remove all metal filings and other
debris.
Caution!
Do not use damaged or dented tubes, as they
will not form an adequate seal.
Caution!
Ensure that the seals remain correctly aligned
when installing the tubes. Do not fit damaged
seals.
Caution!
Secure the exhaust conduit with the fixing de-
vice in order to ensure that it is correctly cen-
tred relative to the air conduit.
2.11.2 How to install 2x 87° elbows
1
2
Fig. 2.58 Arrangement of 2 x 87° elbows – View from above
1
2
* = 3°
*
Fig. 2.59 Arrangement of 2 x 87° elbows – View from front
1
2
*
* = 3°
Fig. 2.60 Arrangement of 2 x 87° elbows – View from side
When using 2 x 87° elbows follow fig. 2.58 to fig. 2.60
to avoid obstructions on outer wall.
a
Caution!
The elbows must be correctly aligned to avoid
undue stress on the joints and risk of leakage.
• The elbow fitted to the top of the boiler (
1
) should be
twisted by 3° to ensure that the second 87° elbow (
2
)
exits the wall perpendicular.
Standard Concentric Systems Ø 60/100 2
Summary of Contents for Air flue duct
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