Electrical connections
Warning! Powering the unit with an
incorrect voltage invalidates the Carrier
warranty.
Important:
• The electrical connection of the system
must be made from the outdoor unit.
• To make the electrical connections for the
unit (cable entry, section of conductors,
safety devices, etc.), consult the electrical
data table and the wiring diagram attached
to the unit, and comply with the standards
in force for the installation of air condition-
ing appliances.
• The installer must install all the safety
devices in accordance with the legislation
in force.
EXECUTION
• Make the coolant connections first and
then the electrical connections. For disas-
sembly, proceed in reverse order.
• Make the earth connection before the
electrical connections.
• Make the electrical connection between
the two units first and then make the con-
nection to the mains electricity supply.
• For correct connection, refer to the wiring
diagrams in Figures A and B.
GB-20
model GND R C Y O W2 S V1 V2 V3 V4 40 41 1 2 3
40DMC018,024,028
4x1 Not connected
3 x 0.75
40DMC036,052,060 A03VV-F
interconnection between
indoor and outdoor unit (mm
2
)
CRC
NOTES: Refer to the installation man-
ual for the outdoor unit for connection
to the mains electricity supply.
Interconnection cable (H07RN-F)
Cooling only
40DMC018, 024, 028, 036, 052,060
FIG. A