The climate system’s projected pressure drop is 20 kPa:
the working point ends up inside the grey, approved
area.
0
0 l/s
l/h
0,250,200,150,100,05
20
40
30
10
50
60
Tryckfall radiatorkrets
(kPa)
600 8004002000 1000
Vattenflöde
Pressure drop across the
climate system
Water flow
Installation alternative
SAM S42 can be installed in several different ways, some of
which are shown here.
FROST PROTECTION DAMPER (QN42)
An external frost protection damper (QN42) should be in-
stalled in the outdoor air duct, if SAM S42 is installed in a
cold climate.
EXTRA CLIMATE SYSTEM
In buildings with several climate systems that require differ-
ent supply temperatures, the accessory ECS 40/ECS 41 can
be connected.
SAM S42 is connected to the climate system that has the
lowest supply temperature.
15Chapter 4 | Pipe and ventilation connectionsSAM S42