Water Connections; Electrical Connections - Beretta NOVELLA 55 RAI Installation Manual

3.4

Water connections

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:
MI CH outlet
RI CH return
b
The "RO120 storage cylinder water
connections kit" (part number 596369)
adapts the boiler's water connections to
a different diameter:
MI CH flow
RI CH return
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.
14
b
Circuits filled with anti-freeze must be fit-
ted with water disconnectorsrici.
3.5

Electrical connections

Il collegamento alla rete elettrica deve essere
realizzato tramite un dispositivo di separazio-
ne con apertura onnipolare di almeno 3 mm.
L'apparecchio funziona con corrente alternata
a 230 V~50 Hz, ha una potenza elettrica di
150 W ed è conforme alla norma EN 60335-1.
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
mm2).
Ø 1"1/4 F
Ø 1"1/4 F
Ø 3/4" F
Ø 3/4" M
MI
- Always refer to the electrical wiring dia-
grams in this manual when performing
any electrical work.
- Ensure that an efficient ground con-
nection 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.
RI
Fig. 3.1