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4. INSTALLATION
Fig. C
Attention
!
In the event of assembly of high+low temperature modules, always follow
the correct order of assembly. High temperature models are always to be
connected towards the supply of the groups (boiler side) regardless of
whether there is an open collector.
The same is true for First Box built-in models. If it becomes necessary to
change the supply side of the groups (from left to right), the high-tempera-
ture modules must always be adjacent to the open collectors.
40
40
20
60
20
60
0
80
0
80
40
40
20
60
20
60
0
80
0
80
30
A
NO
YES
B
NO
YES
YES
In other words, the hot water coming from the boiler must first meet the
high temperature modules and then the low temperature modules.
If you do not do this, during simultaneous operation of high and low zones,
the mixer valve would mix the high-temperature water that supplies the
groups with the water returning from the high temperature zone.
GB
GB
40
40
20
60
20
60
0
80
0
80
40
40
20
60
20
60
0
80
0
80
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