Biasi GARDA HE SYSTEM M96.28SR/P User Manual And Installation Instructions page 27

Installation
the overall acceptable length of the flue system as
follows:
45û reduce length by 0,5 m.
90û reduce length by 1 m.
ø 60/100
ø 60/100
Fig. 6.6
Twin pipe kits ø 80 mm (Fig. 6.7)
Various twin (split) pipes kits and optional acces-
sories (elbows) are available to assist in the ter-
mination of the flue where the boiler is installed in
a location remote to an outside wall.
These kits allow for separation of the air supply
pipe from the pipe that discharges the exhaust
gasses. Consequently it is possible to extend the
flue system to a greater distance than that pro-
vided by the standard horizontal co--- axial flue.
If either an additional 45û or 90û accessory elbow
is used then the maximum permissible length of
either pipe must be reduced by 0.90 m or 1,65 m
respectively.
B
Min = 0,3 m
Max = 2,7 m
Only for M96.32SR/...
Min = 0,3 m
Max = 1,8 m
A
ø 60/100
90û=--- 1 m
45û=--- 0,5 m
C
B
Min = 0,3 m
Max = 2,7 m
A
ø 60/100
90û=--- 1 m
45û=--- 0,5 m
C
Fig. 6.7
Two restrictors with different size are supplied
with the twin pipe kit and have to be installed
between the boiler and the air intake adapter
(Fig. 6.8).
Air intake adapter
Restrictor
Gasket
Fig. 6.8
For the correct use of the restrictors with twin
pipes refer to Tab. 6.2.
For M96.28SR/...
Equivalent length
(air duct + flue duct)
Between 1 and 15 m
More than 15 m up to 30 m
90û=--- 1,65 m
45û=--- 0,90 m
Restrictor
ø 50 mm
ø 55 mm
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