rate outlets.
2.9
FORCED EXHAUST
(Type B22P-52P)
Comply with the following requirements
during installation:
– Insulate the exhaust pipe and install a
condensation collection system at the
base of the vertical pipe.
– 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 "BF-BFT" models this type of exhaust pipe
is installed using the special kit, code
8089904. For kit assembly instructions,
refer to point 2.9. 1 . Protect the intake with
the optional accessory, 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).
8089904 is supplied with the intake diaph-
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
ragm, which must be used as shown in fig.
8/a, depending on the maximum permitted
flow.
Maximum flow resistance must be no
more than 7,0 mm H
mm H
O in model "25" - 9 mm H
2
model "30" - 12 mm H
Kit code
As the maximum pipe length is determined
by adding up the flow resistance of the
Appliances from 7 to 35 kW
(distances in mm)
600
600
300
300
400
600
300
300
300
2500
1500
1000
2000
3000
various individual accessories installed,
refer to Table 1 for calculation.
O in vers. "20" - 7,6
2. 1 0
2
O in
2
O in model "35".
2
The outlet terminals for forced draught
systems may be located on the outer walls
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
POSITIONING OF OUTLET
TERMINALS
Fig. 11
ES
PT
GB
83