RAGGIO C
175
EN
cod. 3541V280 - Rev. 01 - 04/2021
nections to the grid must be made with a permanent con-
nection and equipped with a bipolar switch with contact
opening of at least 3 mm, interposing fuses of max. 3A
between the boiler and line. Make sure to respect the po-
larities (LINE: brown wire / NEUTRAL: blue wire /
GROUND: yellow-green wire) in the connections to the
electric line.
B
The unit’s power cable
MUST NOT BE REPLACED BY
THE USER
.
If the cable gets damaged, turn the unit off
and have the cable replaced only by professionally
qualified personnel.
In case of replacement, use exclusi-
vely
“HAR H05 VV-F”
3x0.75 mm2 cable with maximum
ext. diameter of 8 mm.
Room thermostat
B
ATTENTION: THE ROOM THERMOSTAT MUST HAVE
VOLTAGE-FREE CONTACTS. CONNECTING 230V TO
THE ROOM THERMOSTAT TERMINALS WILL PERMA-
NENTLY DAMAGE THE PCB.
When connecting a time control or timer, do not take the
power supply for such devices from their cutoff contacts.
Their power supply must be via a direct connection from
the grid or with batteries, depending on the kind of device.