Page 30 / 146
00BNO9061-L
VARMAX -
Installation, Use and Maintenance
fi
gure 19 - B23P (Ubbink) sizing recommendations
Sizing recommendations on the basis of a UBBINK system:
Using a Ubbink duct in PPTL
ø
160 requires a Male 150 / Female 160 adaptor
(reference 041432) at the boiler outlet.
!
IMPORTANT:
The weight of
fl
ue-gas ducts must not be supported by the boiler.
4.10.3.
Rules for installing air vent terminals
Please refer to national standards and regulations.
Height of
fl
ue-gas duct H
in linear metres (lm)
(operating at 50/30°C)
duct
ø
160 mm
rigid
fl
exible
Type of gas
G20
G31
G20 G31
MODELS
120
100
100
100
86
140
100
100
86
65
180
64
32
30
--
225
58
40
28
--
!
IMPORTANT:
The above values are provided for information purposes only. It is
important to check them with a calculation.
H
ø
160
ø
160