Sime Format Instrucciones Para El Instalador página 81

KEY
1 Tile with articulated joint
2 Lead panel
3 Collar
4 Locking screw
rectilinear distance of 3.7 m.
Should it be necessary to make two chan-
ges of direction in the pipe development,
the maximum length of the pipe must not
exceed 2 m.
2.8 "25 BF - 30 BF" SEPARATE PIPES
When installing the pipes, follow closely
the requirements of the current stan-
dards, as well as the following practical
pointers:
– The temperature on the surface of the
discharge pipe, in the portions that pass
through masonry and/or come into
contact with walls should not exceed
room temperature by more than 60°C
(pr EN 483).
– With direct intake from outside, when
the pipe is longer than 1 m, you are
recommended to insulate the piping so
as to prevent formation of dew on the
outside of the piping during particularly
hard periods of the year.
– With the outlet pipe outside the building
or in cold indoor environments, insulation
is necessary to prevent burner failure in
starting.
In such cases, provide for a condensate-
collector system on the piping.
The maximum overall length of the intake
and exhaust ducts depends on the head
losses of the single fittings installed
(excluding the doublers) and must not be
greater than 7.00 mm H O (vers. "25")
2
and 11.00 mm H O (vers. "30").
2
For head losses in the fittings, refer to
Table 2.
Fig. 11
TABLE 2
Accessories ø 80
90° elbow MF
45° elbow MF
Extension L. 1000 (horizontal)
Extension L. 1000 (vertical)
Outlet terminal
Intake terminal
Doubler fitting
Roof outlet terminal L. 1 390
Tee condensation outlet
Example of allowable installation calculation ("25" version) in that the sum of the head los-
ses of the single fittings is less than 7.00 mm H
7 meter horizontal pipe ø 80 x 0.20
7 meter vertical pipe ø 80 x 0.30
n° 2 90° elbows ø 80 x 0.30
n° 2 90° elbows ø 80 x 0.40
n° 1 terminal ø 80
Total head loss
With this total head loss, remove the ø 38 baffle from the intake pipe.
KEY
1 Vertical extension L. 200 with take-off point code 8086908
2 a Extension L. 1000 code 8096100
2 b Extension L. 500 code 8096101
3 Tile with articulation joint code 8091300
4 Roof outlet terminal L. 1284 code 8091200
5 Supplementaty 90° elbow code 8095800
6 Supplementaty 45° elbow code 8095900
"25" version
Inlet Outlet
0,30 0,40
0,20 0,30
0,20 0,30
0,30 0,20
– 0,30
0, 1 0 –
0,20 –
– –
– 0,90
O:
2
Head loss (mm H O)
2
"30" version
Roof outlet Inlet Outlet
– 0,30 0,50
– 0,20 0,40
– 0,20 0,40
– 0,30 0,30
– – 0,40
– 0, 1 0 –
– 0,30 –
0,50 – –
– – 1, 1 0
Intake Outlet
1.40 –
– 2. 1 0
0.60 –
– 0.80
0. 1 0 0.30
2. 1 0 + 3.20 = 5.3 mm H 2 O
Fig. 12
Roof outlet
–
–
–
–
–
–
–
0,60
–
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