Glass BL-ST:: 1221114201/03_661Y3300 • A
Installation
CONNECTING THREE-PHASE
APPLIANCES
This procedure is to be carried out by an
approved electrician:
1. Connect using four conductors of
2.5 mm
2
, (one green/yellow for the
earth.)
2. Connection to the mains via termi-
nals B1, B2 and B3 of the thermo-
stat (see "Figure 3" to "Figure 5",
3. Connect green/yellow conductor
to terminal
4. For a 400 V Tri supply without
neutral, modify the internal con-
nections by following the wiring
diagram in "Figure 3", page 17.
5. Regarding a 230 V Tri connection,
see diagram in "Figure 4", page 17.
CONNECTING SINGLE PHASE
APPLIANCES
This procedure is to be carried out by an
approved electrician:
1. Use three conductors of 2.5 mm
2
,
(one green/yellow for the earth).
2. Connect to the mains via terminals
A and B or 1 and 2 of the thermo-
stat (see page 16).
3. Connect the green/yellow conduc-
tor to terminal
Essential instructions for the electrical safety
• The protection class of the appliance is: I.
• The covers closing the electric group provide protection against the
involuntary touching of the active electric parts under voltage.
• Connection to the mains is to be carried out in accordance with the
installation diagram found in this installation manual and on the plate
at the bottom of the appliance, by paying attention to the connection
to the correct phases.
• It is FORBIDDEN AND DANGEROUS to start-up the appliance without
the professional installation by a specialist provided with protection
against the electric contacts.
• For the correct operation of the appliance, we recommend the use of a
protection relay in the mains of your building.
• CAUTION! Before doing any maintenance or repair tasks, disconnect
the appliance from the electric supply. The maintenance and repair
works have to be carried out by qualified personnel.
• After repair and maintenance works, the appliance has to be restored
to its original condition.
• The repair works must be documented by the technician in order to
preserve the validity of the warranty.
15
EN
