Beretta NOVELLA 24-31 RAI PV, Руководство по установке

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15
3.4
Water connections
MI
RI
AB
MI
RI
Novella
boilers are designed and made for
use in central heating systems, but can also
be used to generate domestic hot water if
connected to a suitable storage cylinder.
The specifications of the water fittings are as
follows.
Novella 24, 31 RAI PV boilers
MI CH flow 3/4” M
RI CH return 3/4” M
AB Storage cylinder connection 3/4” M
Novella 24, 31 RAI boilers
MI CH flow 3/4” M
RI CH return 3/4” M
Novella 45 RAI boilers
MI CH flow 1” M
RI CH return 1” M
b
The choice of system components and
the method of their installation are left
up to the heating engineer installing the
system. Installers must use their experti-
se to ensure proper installation and fun-
ctioning in conformity to all applicable
legislation.
b
Circuits filled with anti-freeze must be fit-
ted with water disconnectors.
Fig. 3.1
Fig. 3.2
DESCRIPTION
MODEL
24 RAI 31 RAI 45 RAI
A 64 28 28 mm
Novella 24, 31, 45 RAI
Novella 24, 31 RAI PV
3.5
Electrical connections
Use a multi-pole disconnector with a contact
gap of at least 3 mm to connect the appliance
to the mains electricity supply. The appliance
functions on an alternating current supply
of 230 V, 50 Hz. Consumption is 150 W. The
appliance conforms to EN 60335-1 standard.
b
The following instructions are mandatory.
- Install a multi-pole magnetic thermal
trip switch and disconnector confor-
ming to IEC-EN standards (with a con-
tact gap of at least 3 mm).
- Respect the polarity of the L1 (Phase) -
N (Neutral) connections.
- Use cables with insulation and cross
section conforming to applicable stan-
dards (minimum cross section 1.5
mm
2
).
- Always refer to the electrical wiring dia-
grams in this manual when performing
any electrical work.
- Ensure that an efficient ground connec-
tion is provided.
a
It is strictly forbidden to use fuel and/
or water pipes to ground the appliance.
The manufacturer declines all respon-
sibility for damage caused by failing to
ground the appliance adequately.