70
K
reduction coefficient for liquid
fuels: 0.024
P
boiler input in Kcal/h
H
height of the flue in meters mea-
sured from the flame axis to the
flue outlet into the atmosphere.
When dimensioning the flue, the
ef fective height of the flue in
me t er s mus t be consider ed,
measured from the flame axis to
the top of the flue, reduced by:
–0.50 m for each change of
direction of the connection
union between boiler and flue;
– 1. 0 0 f o r e a c h h o r i z o n t a l
metre of the union itself.
Our boilers are the B
23
type and do
not need any particular connections
o t her t han t he one t o t he f lue as
described above.
2.3.2
Smoke exhaust with
ø 80/125 coaxial flue
“BF”
version boilers are set to be
connected to ø 80/125 stainless
steel coaxial flues that can be adju-
sted to the most suitable direction
for room requirements (fig. 6).
The maximum acceptable length of
the flue must not be over 7.0 equi-
valent meters.
Load losses in meters for each sin-
gle accessory to be used in the
exhaust configuration are indicated
in Table A.
Only use original SIME accessories
and make sure that connections are
correct as indicated in the instruc-
tions supplied with the accessories.
2.3.3
Exhaust with separate
flues (ø 80)
“SOLO 30 BF -DUETTO 30 BF”
boi-
1
2
3
4
2
5
6
7
7
3
3
ø 80/125
min. 7
1
5
Fig. 6
KEY
1
Stainless steel coaxial flue L. 886 code 8096220
2 a
Stainless steel extension L. 1000 code 8096121
2 b
Stainless steel extension L. 500 code 8096120
3 a
90° stainless steel curve code 8095820
3 b
45° stainless steel curve code 8095920
4
Stainless steel vertical condensation recovery L. 135 code 8092820
5
Tile with hinge code 8091300
6
Roof outlet terminal L. 1063 code 8091203
7
Kit code 8098810
TABLE A
Load loss (mt)
90° stainless steel curve
1,80
45° stainless steel curve
0,90
Stainless steel extension L. 1000
1,00
Stainless steel extension L. 500
0,50
Roof outlet terminal L. 1063
1,00
Stainless steel coaxial flue L. 886
0,70
Stainless steel vertical condensation recovery L. 135
0,70
WARNING:
The maximum acceptable length of the flue must not be over 7.0 equivalent meters.
Always use the condensation recovery (4) in outlets with vertical exhaust.
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