13
Flue installation instructions ecoTEC 834449_13
h
Note
If access can be gained to the proposed flue
exit point from outside the dwelling, the hole
can be cut with a 107 mm core drill and the flue
external wall seal fitted from outside the dwell-
ing.
87
87
A
A
B
1.
2.
Fig. 2.8 Distance to external wall
Key
1. Rear
exit
2. Side exit
A Distance to external wall
B Distance to internal wall
= 190 mm ecoTEC exclusive combination
= 176 mm ecoTEC plus open vent
= 125 mm ecoTEC plus system & combination
= 323 mm ecoTEC plus 937
• Measure the distance from the outside face of the wall
to the centre of the fan outlet on the boiler (fig. 2.8).
This is dimension A.
13 mm
A + 22 mm
Fig. 2.9 Length of air pipe
• Cut the air duct and flue duct to the lengths shown in
(fig. 2.9).
• All flue sockets should point towards the terminal.
• When cutting the air and flue ducts it is important to
remove any burrs with a file, this ensures easy fitting
of the ducts and prevents any rough edges from dam-
aging the flue seals.
Care should be taken not to scratch the white surface
of the air duct.
• If the installation requires the use of air/flue duct ex-
tensions, additional bends or elbows refer to the sec-
tion 2.11.
• Secure the air duct sections together by drilling a
3 mm diameter hole through the location hole in the
end of the outer air duct. (Ensure that the drill does
not pierce the inner flue duct). Secure the air ducts
together using the screw provided.
87
13
1
3°
Fig. 2.10 Assembly of the horizontal wall duct
• Push the air/flue duct assembly (
1
) including the flexi-
ble external seal through the wall until the seal clears
the outside face of the wall and pull air/flue duct back
towards the boiler until the external seal touches the
outside wall (fig. 2.6 and fig. 2.10).
• Ensure that the air/flue duct (
1
) is centred in the hole
and the terminal is correctly positioned with the inlet
grille at the bottom (fig. 2.6 and fig. 2.10).
• Slide the internal trim ring (
2
) over the air duct until it
is flush with the wall (
2
, fig. 2.6).
• At this stage it is necessary to prepare and fit the
boiler onto the hanging bracket – refer to the boiler
installation instructions.
• Fit the elbow (
4
) to the boiler by inserting the spigot
of the flue elbow into the flue socket on the boiler and
secure using the 30 mm air duct clamp (
3
) provided
(fig. 2.6).
• Pull the air/flue duct back through the wall such that
the flue duct fully engages into the flue elbow socket.
• Fit the 48 mm air duct clamp (
5
) ensuring that it is
positioned centrally (fig. 2.6).
• Drill two holes 3 mm Ø through the air duct of both
the elbow/flue and elbow/boiler clamps at the most
convienient holes on the air duct clamps. (Ensure that
the drill does not penetrate the inner flue duct). Screw
Standard Concentric Systems Ø 60/100 2
Summary of Contents for Air flue duct
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