Unical NOVAIREX 35, Инструкция по установке и обслуживанию

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3.10 - ELECTRICAL CONNECTIONS
General warnings
The electrical safety of the appliance is guaranteed only when
it has been properly connected to an efficient earthing system,
carried out as intended by safety standards in force: pipes of
the gas, water and heating systems are absolutely unsuitable
as earthing electrodes.
It is necessary to verify this fundamental safety requirement. If
in doubt, have the electric system carefully checked by profes-
sionally qualified personnel as the manufacturer is not liable for
damage caused by failure to provide an earthing system.
Have professionally qualified personnel check that the electric
system is adequate for the maximum power absorbed by the
appliance, indicated on the data plate. Make sure in particular
that the cross-section of the cables is suitable for the power
absorbed by the appliance.
Adapters, multiple sockets and/or extension cords cannot be
used to power the appliance.
Use of any type of component using electric energy requires the
observance of some fundamental rules, such as:
• do not touch the appliance with wet and/or moist parts of the
body and/or in bare feet;
• do not pull the electric cables;
• do not leave the appliance exposed to atmospheric agents
(rain, sun, etc.) unless expressly designed;
• do not allow children or unskilled persons to use the appli-
ance.
230V electric power supply connection
Electrical connections are illustrated in section 3.11.
Boiler installation requires connection to a 230 V - 50 Hz electric
mains:
This connection must be set up according to standard, as in-
tended by current IEC regulations.
Danger!
Only a qualified technician may perform the
electrical installation.
Before performing connections or any type
of operation on electrical parts, always dis-
connect electrical power and make sure that
it cannot be reconnected accidentally.
Remember that a bipolar switch must be installed on the boiler
power line with over 3 mm between contacts, easy to access,
making maintenance quick and safe.
The power cable must be replaced by authorised technical
personnel. Failure to comply with the above can jeopardise the
safety of the appliance.
Attention!
- Before opening the panel board, move the
switch to pos. “0”!
- Do not connect loads to the panel board
which absorb more than 6A overall!
Approvals
The UNICAL panel board for NOVAIREX boilers has received
the EC approval according to standard EN 60335-1.
Technical data plate and serial number of the
panel board.
The identification plate of the panel board is glued
on the base.
Use
This panel board must be used to operate a
boiler intended to heat water at a temperature
which does not exceed the boiling point when
installed.
Dielettrico isolante
“+” Polo cavo coassiale o cavo schermato
al morsetto dispari
Polo calza (schermo)
al morsetto pari
CAVO SCHERMATO
MORSETTIERA
1
2
3
4
SONDA
CORRECT CONNECTION OF THE PROBES
N.B. to correctly view the temperature measured by the
probe, if the cable passes near electric cables or has an
extension of over 3 metres, a shielded cable must be used
for connection.
The following drawing specifies that the positive pole of
the shielded cable must be connected to the odd number
terminal while the braid shield of the cable must be con-
nected to the even number terminal.
This shields the probe line and eliminates noise.
Shielded pole at even
terminal
Insulating dielectric
“+” Coaxial cable pole or shielded cable at odd
terminal
PROBE
SHIELDED CABLE
TERMINAL BOARD