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– If the pipe passes through combustible
walls, insulate the section of the flue pipe
passing through the wall with a 30 mm
thick fibreglass pipe covering with a den-
sity of 50 kg/m
3
.
In "25/55 BF - 30/55 BF" models this
type of exhaust pipe is installed using the
special kit, code 8089904. For kit assembly
instructions, refer to point 2.8. 1 .
Protect the intake with the optional acces-
sory, code 8089501.
The accessory is assembled by cutting a 50
mm long segment from an ordinary ø 80
extension and inserting it on the air intake,
on which the accessory is then fitted,
anchored to the pipe segment with the
screws provided (fig. 10).
Kit code 8089904 is supplied with the
intake diaphragm, which must be used as
shown in fig. 8/a, depending on the maxi-
mum permitted flow.
Maximum flow resistance must be no
more than 8.5 mm H
O in vers. "25/55
2
BF" and 12 mm H
O in vers. "30/55 BF".
2
As the maximum pipe length is determined
by adding up the flow resistance of the
various individual accessories installed,
refer to Table 1 for calculation.
TABLE 2
Siting of terminal
A - below openable window
B - below ventilation opening
C - below eaves
D - below balcony (1)
E - from adjacent window
F - from adjacent ventilation opening
G - from horizontal or vertical soil or drain pipes (2)
H - from corner of building
I - from recess in building
L - from ground level or other treadable surface
M - between two terminals set vertically
N - between two terminals set horizontally
O - from a surface facing without
openings or terminals
P - as above but with openings and terminals
2. 1 0
POSITIONING OF OUTLET
TERMINALS (fig. 11)
The outlet terminals for forced draught
systems may be located on the outer walls
of the building Table 2 shows approximate,
non-binding minimum distances to be met
Appliances from 7 to 35 kW
(distances in mm)
600
600
300
300
400
600
300
300
300
2500
1500
1000
2000
3000
for a building of the type shown in fig. 11.
2. 1 1
If you must replace the electric power
1) Terminals below a practicable balcony must be located in such a
way that the total path of the smoke from its outlet point from
the terminal to its outlet point from the external perimeter of the
balcony, including the height of possible railings, is not less than
2000 mm.
2) When siting terminals, where materials that may be subject
to the action of the combustion products are present in the
vicinity, e.g., eaves, gutters and downspouts painted or made
of plastic material, projecting timberwork, etc., distances of
not less than 1500 mm must be adopted, unless adequate
shielding is provided to guard these materials.
cod. 8089501
Fig. 10
ELECTRICAL
WIRING
Fig. 11
ES
PT
ENG
69
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