GB-19
ENGLISH
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
conditioning 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
disassembly, proceed in reverse order.
• Make the earth connection before the
electrical connections.
• Make the electrical connection between
the two units first (see note 1) and then
make the connection to the mains
electricity supply (consult the outdoor unit
installation manual).
• For correct connection, refer to the wiring
diagram provided.
Note 1:
The indoor unit/ outdoor unit
connection cables must be of type H07
RN-F (or greater) with synthetic rubber
insulation and polychloroprene sheath, in
accordance with EN 60335-2-40.
Model
1
2
3
C
G
P
40DQV 050, 080, 110, 130
1.0
1.0
1.0
1.0
3 x 0.75
H03VVF
Minimum section for conductors of connection
cable between indoor and outdoor unit (mm
2
)
CRC
Heat pump heating mode
10
80
1
Terminal board legend
Earth
1
Phase indoor unit/outdoor unit connection
2
Neutral, indoor unit/outdoor unit connection
3
Communication (high voltage)
C
Signal
G
GND
P
+12V DC
Interconnection cable
(4x1 mm
2
/H07 RN-F)
Cable for CRC (H03/VV-F)
Important: The earth conductor of the indoor unit - outdoor unit connection cable
must be crimped to a ring terminal lug in tin-plated annealed copper predisposed for M4 screws.
40DQV_GB_install 5-07-2005 11:44 Pagina 19
