37
60T - 280T
COSMOGAS
13 - INSTALLATION - Electrical connections
13.1 - Electrical connections:
general information
ATTENTION !!! Disconnect power before doing
any operations inside the appliance.
ATTENTION !!! During maintenance, label all the
wires involved in the operation before disconnecting.
ATTENTION !!! The appliance is only electrically
safe when it is properly connected to an efficient
grounding system built as required by the safety
standards in force.
This fundamental safety requirement must be checked.
In you have any doubts, ask a professionally qualified
electrician to check the electrical system thoroughly.
Have a professionally qualified electrician make sure
that the electrical system is appropriate to the electrical
power required by the appliance, shown on the plate.
The appliance must be connected to the electrical mains
with a mobile plug connection. Using adapters, power
strips, extension cords, etc. is not allowed.
The appliance must be connected to the electrical mains
with a double insulated tri-rated cable with appropriate
cross-section.
To connect to the electrical mains, provide a bipolar
switch near the appliance with a contact opening
distance of at least 3 mm, as required by the applicable
standards in force.
Respect the polarity between phase and neutral when
connecting the appliance.
Make sure the piping for the hydraulic, heating and gas
systems is not used to ground the electrical or telephone
system. This sort of piping is absolutely not appropriate
for this purpose. In addition, the appliance, the piping
and the radiators can suffer serious corrosion damage in
a short time.
ATTENTION !!! The appliance has no protections
against the effects of lightning.
13.1.1 - Connecting the power cable
To connect the electrical power cable, proceed as follows
(refer to figure 13-1):
1.- use a double insulation tri-rated cable
2.- access the electrical connection terminal board following
the specific instructions in section 17.2;
3.- lay the power cable using the cable gland near contacts
“101”, “102” and “PE”;
6.- strip the cable, taking care to keep the grounding cable
(green yellow) 20 mm longer than the other two;
7.- connect the green-yellow cable to the ground terminal
(“PE”)
8.- connect the brown cable (Phase) to terminal “101”
9.- connect the blue cable (Neutral) to terminal “102”
Key
A = Electrical wire sheath;
B = Line;
C = Neutral;
D = Earth.
Figure 13-1 - Electrical connections
