67
IT
ES
ENG
such as
Sentinel X100 or Fernox Protec-
tor F1
is recommended after cleaning the
system. It is important to check the con-
centration of the inhibit or af t er each
system modification and during maintenan-
ce following the manufacturer’s instruc-
tions (specific tests are available at your
dealer). The safety valve drain must be con-
nected to a collection funnel to collect any
discharge during interventions.
WARNING: Failure to clean the heat
system or add an adequate inhibitor inva-
lidates the device’s warranty.
Gas connections must be made in accor-
dance with current standards and regula-
tions. When dimensioning gas pipes from
the meter to the module, both capacity
volume (consumption) in m
3
/h and gas
density must be taken into account.
System pipe sections must be able to gua-
rantee sufficient supply to cover maximum
demand, limiting pressure loss between the
meter and any utility device no greater than
1.0 mbar for second family gas (natural
gas). A sticker inside the module includes
identification and gas type data specific to
the module.
2.3.1
Condensation drain connection
A siphoned drain must be connected to
the civil drain by a pipe with minimum 5
mm per meter gradient for condensation
collection.
Only normal plastic civil drain pipes are
suitable to convey condensation to the
building’s sewer drain.
2.3.2
Filter on the gas pipe
The gas valve is supplied ex factory with an
inlet filter, which, however, is not adequate to
entrap all the impurities in the gas or in gas
main pipes.
To prevent malfunctioning of the valve, or in
certain cases even to cut out the safety devi-
ce with which the valve is equipped, install an
adequate filter on the gas pipe.
2.5
FILLING THE SYSTEM
Cold system filling pressure must be
1 bar
. The
system must be filled slowly so that air bubbles
are released through the specific escapes.
2.6
EXHAUST FOR OUTDOOR
INSTALLATION
The exhaust terminal for single module cod.
8089530 is required for this type of instal-
lation. For separately supplied accessory
assembly see fig. 5.
Fig. 5
Summary of Contents for DEWY EQUIPE 120 BOX
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