62 / GB
System description
Global view
12
13
11
7
6
8
9
1
2
3
4
5
10
1. Boiler delivery pipe
2. Domestic hot water pipe
3. Gas
pipe
4. Domestic cold water pipe
5. Boiler return pipe
6. Hot water inlet from
external
unit G 1” M
7. Cold water tap
8. Gas
tap
9. Hot water fi tting
10. Heating system delivery tap G 1” M
11. Discharge tap
12. Delivery to heating system
temperature
sensor
13. Collector
Available pressure
The curves indicated above show
the available pressure of internal
units.
In order to have a correct sizing of
the system, the pressure drop curve
of the entire circuit (in function of the
nominal fl ow rate) must stay below
the available pressure curve every-
where. Pressure drop values depend
on the specifi c installation.
You can install a supplementary cir-
culation pump if the module’s own
unit is not powerful enough. For the
electrical hookup, refer to «Electrical
circuit».
Warning:
in case of installation of
thermostatic valves on all terminals
or zone valves, install a bypass to
ensure the minimum operating fl ow
rate.
0
1
2
3
4
5
6
7
8
9
0
500
1000
1500
2000
2500
[l/h]
[mc
e]
70
90-110
40-50
AVAILABLE PRESSURE
WARNING:
the heating system must be fully de-
aerated by performing the deaera-
tion cycle as described in the ignition
procedure, and by opening the air
relief valves located on the system.
