INSTALLER
31
Residual pressure
INSIEME CONDENS
26 B - 26 BK
35 B - 35 BK
Maximum residual pres-
sure in flue gas vent (*)
Pa
15
40
(*) Values referred to atmospheric pressure at sea level.
Maximum equivalent length of pipes
INSIEME CONDENS
26 B - 26 BK
35 B - 35 BK
Category
Flue Ø
(mm)
Maximum length of flue
pipe (m) (*)
Maximum length of flue
pipe (m) (*)
open
B23 - B23P
80
20
20
twin flue pipes
C63
80
10+10
10+10
concentric flue pipes
C13 - C33
80/125
10
10
(*) These length must be reduced by 3 metres for every 90° curve and by 1.5 metres for every 45° curve.