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Installation
Water circuit connection
The module must be connected to a
suitably-sized heating/cooling system
in accordance with its performance lev-
els.
Prior to connecting the module, per-
form the following:
- the system tubes are thoroughly
washed in order to remove any
swarves, welding residues or dirt
which might prevent the system from
operating correctly
- the primary circuit pressure does not
exceed 3 bar
- the delivery temperature is no great-
er than 85°C;
- all safety and operating devices nec-
essary for correct operation of the
system are in place
- the expansion vessel capacity is
suited to the amount of water in the
system.
The module is equipped with a shut-
off valve which facilitates checking and
makes it easier to perform any neces-
sary maintenance procedures.
Hydraulic circuit diagram
A
1.
2.
3.
4.
5.
C
Legend:
1. Hydraulic compensator
2. Motorised mixing valve
3. Zone 2 circulation pump
4. Zone 1 non-return valve
5. Zone 1 circulation pump
WARNING
For the water circuit size specifica-
tions, refer to the flow rate/pressure
curves.
B
D
E
F
EN - 31
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