18.04.16
Page 29 / 146
VARMAX -
Installation, Use and Maintenance
Cascade installation case
In this case, where boilers with different powers are connected, the most
powerful models must be closest to the chimney.
The boiler is equipped with an internal check valve smoke diverter, replacing
any other external and functionally identical system.
Sizing recommendations on the basis of a POUJOULAT system
(Condensor type):
fi
gure 18 - B23P (Poujoulat) sizing recommendations
ø
connection
ø
duct
H
3 m
Height of
fl
ue-gas duct H
in linear metres (lm)
(operating at 50/30°C)
ø
connection
150 mm
180 mm
200 mm
ø
duct
130 mm
150 mm
180 mm
200 mm
Type of gas
G20
G31
G20 G31
G20 G31
G20
G31
MODELS
120
79
60
--
--
--
--
--
--
140
87
39
--
--
--
--
--
--
180
--
--
74
23
--
--
--
--
225
--
--
69
20
--
--
--
--
275
--
--
--
--
100
73
--
--
320
--
--
--
--
100
64
--
--
390
--
--
--
--
--
--
100
--
450
--
--
--
--
--
--
100
--
!
IMPORTANT:
The above values are provided for information purposes only. It is
important to check them with a calculation.
!
IMPORTANT:
The weight of
fl
ue-gas ducts must not be supported by the boiler.
Содержание Varmax 120
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