FORCE B
152
EN
cod. 3541T170 - Rev. 00 - 09/2019
Important
The unit is a B23-type with combustion air drawn from the place of installation, and fume exhaust by means of a fan
(operation with flue pressurised), and must be connected to one of the discharge systems indicated below. Before pro-
ceeding with installation, check and carefully comply with the local regulations and provisions. Also, comply with the
provisions on the positioning of wall and/or roof terminals and the minimum distances from windows, walls, ventilation
openings, etc.
Manifold, ducts and flue must be suitably sized, designed and made in compliance with the current regulations. They
must be made of suitable materials, i.e. resistant to heat and corrosion, smooth on the inside and tight. In particular,
joints must be condensate proof. Also, provide for adequate condensate drainage points, connected to a trap to prevent
the condensate formed in the flues from running into the generators.
Connection with separate pipes
Before installation, make sure the maximum permissi-
ble head has not been exceeded, by means of a sim-
ple calculation:
1. Completely define the layout of the flue system.
2. Consult the table 4 and identify the losses of each
component.
3. Check that the sum total of losses is less than or
equal to the maximum permissible head in table 4.
fig. 56- Connection examples (
=Air /
=Fumes)
Table 4Accessories table
Calculation examples
FORCE B 80: available head 166 Pa
5 meters PIPE Ø80 + 3 BENDS 90° Ø80 = (5 x 7.5) + (3 x 17) = 88.5<166 =
OK
8 meters PIPE Ø80 + 8 BENDS Ø80 = (8 x 7.5) + (8 x 17) = 196>166 =
NO
MODELS
FORCE B 80
FORCE B 120
FORCE B 150
Max permissible head (Pa)
166
199
235
Ø80
PIPE 1 M m/f
7.5
16.0
24.5
PIPE 0.5 M m/f
3.8
8
12.3
90° BEND
17
39
63
45° BEND
8.5
19.5
31.5
TERMINAL
Ø100
PIPE 1 M m/f
2.5
5.4
8.2
PIPE 0.5 M m/f
1.3
2.7
4.1
90° BEND
7
16
26
45° BEND
3.5
8
13
TERMINAL
