Water Connections; Electrical Connections - Beretta NOVELLA 55-64-71 RAP 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 con-
nections kit" (cod. 596369) adapts the
boiler's water connections to a different
diameter:
MI
CH outlet
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 exper-
tise to ensure proper installation and
functioning in conformity to all applica-
ble legislation.
b
Circuits filled with anti-freeze must be fit-
ted with water disconnectors.
14
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 appli-
ance conforms to applicable standards.
b
The following instructions are mandatory:
- install a multi-pole magnetic thermal trip switch and disconnector conforming to IEC-EN standards (with a
contact 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 standards (minimum cross section 1.5
2
mm
- always refer to the electrical wiring diagrams in this manual when performing any electrical work.
- ensure that an efficient ground connection is provided.
a
It is strictly forbidden to use fuel and/or water pipes to ground the appliance. The manufacturer declines all
responsibility for damage caused by failing to ground the appliance adequately.
1"1/4 F
1"1/4 F
3/4" F
3/4" M
);
Fig. 3.1