Instructions for the installer
9
3.4
Electric connection
Make sure that the voltage and the size of the mains corresponds to the specifications shown on
the plate located on the back of the appliance.
The plate must never be removed.
The plug at the end of the power supply cable and the wall socket must be the same type and must
comply with current electric standards. Check that the mains is adequately earthed. Once the
appliance has been installed make sure that the plug is accessible to allow the periodical check-up.
Prepare an omni-polar cutoff device on the power supply line of the appliance with a contact
opening distance equal to or more than
3 mm
, located in a convenient position near the appliance.
Do not use reducers, adapters or shunts.
Before making the electric connection, make sure of the efficiency of the earthing.
Make sure that the relief valve and the home wiring system are able to withstand the appliance
load.
The yellow/green earth cable must not be subject to cutoffs.
The electric cable must not come into contact with parts whose temperature is more than
50°C
higher than room temperature.
3.4.1 Electric power cable section
Running at 230V1N~:
up to 2.9 kW
use a tripolar cable type
H05RR-F (cable measuring 3 x 1.5 mm
2
);
between 2.9 kW and 5.4
kW
use a tripolar cable type H05RR-F (cable measuring 3 x 2.5
mm
2
).
The end to be connected to the appliance must have the earth wire
(
yellow-green
) at least
20 mm
longer.
Running at 240 Vac 1Ph N:
up to 10.44 MJ
use a tripolar cable
type H05RR-F (cable measuring 3 x 1.5 mm
2
);
between 10.44 MJ
and 19.44 MJ
use a tripolar cable type H05RR-F (cable measuring
3 x 2.5 mm
2
).
The end to be connected to the appliance must have the earth wire
(
yellow-green
) at least
20 mm
longer.
