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15
OPTIMAX HE PLUS S
Cod. 3540R543 - 08/2012 (Rev. 00)
Other coaxial connections
D
24
D
24
D
44
D
44
D
44
D
24
fi
g. 16 - Examples of connection with coaxial pipes (
= Air /
= Fumes)
For coaxial connection,
fi
t the unit with one of the following starting accessories. For the wall hole dimensions, refer to
section 4.1 Dimensions and connections.
Ù!211
Ù!71
231
253
Ù!91
Ù!238
231
258
Ù!211
Ù!71
152113Y1
152117Y1
152112Y1
fi
g. 17 - Starting accessory for coaxial ducts
Before proceeding with installation, check with table 1 that the maximum permissible length is not exceeded, bearing in
mind that every coaxial bend gives rise to the reduction indicated in the table. For example, a Ø 60/100 duct comprising
a 90° bend + 1 horizontal metre has a total equivalent length of 2 metres.
Table 1 - Max. length coaxial ducts
Coaxial 60/100
Coaxial 80/125
Optimax HE
PLUS 18 S
Optimax HE
PLUS 25 S
Optimax HE
PLUS 35 S
Optimax HE
PLUS 18 S
Optimax HE
PLUS 25 S
Optimax HE
PLUS 35 S
Max permissible (horizontal)
equivalent
fl
ue length
8 m
7 m
6 m
30 m
28 m
25 m
Max permissible (vertical)
equivalent
fl
ue length
9 m
8 m
7 m
30 m
28 m
25 m
Reduction factor 90° bend
1 m
0.5 m
Reduction factor 45° bend
0.5 m
0.25 m