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Idiomas disponibles
Idiomas disponibles
CAUTION
• The remote controller wire (Communication line) and AC 208-230V wires cannot be parallel to contact
each other and cannot be stored in the same conduits. If doing so, a trouble may be caused on the
control system due to noise or other factor.
• If U series models (TU2C-Link) are combined with models other than U series (TCC-Link), the wiring
specifications and maximum number of connectable indoor units will be changed. Pay attentions to their
communication specifications when carrying out the installation, maintenance, or repair. For its details, refer to
the "Communication line" in 8 Electrical connection.
Indoor unit
Indoor unit
Remote
L
control
L1
wiring
Remote
Remote control inter-unit wiring
control
Max. number of connectable indoor units, and communication type
Outdoor unit
U series
Indoor unit
U series
Remote controller
U series
Communication type
TU2C-Link
Max. number of connectable unit
16
: Other than U series
*
NOTE
• Use copper supply wire.
• Use UL wire rated 600V for the power supply.
• Use UL wire rated 300V for the remote control wires and control wires.
CAUTION
The remote control wire (Communication line) and AC 208/230V wires cannot be parallel to contact each
other and cannot be stored in the same conduits. If doing so, a trouble may be caused on the control system
due to noise or other factor.
Wiring between indoor unit and outdoor units
NOTE
An outdoor unit connected with control wiring between indoor and outdoor units wire becomes automatically
the header unit.
37-EN
Indoor unit
Indoor unit
Ln
L2
For number of max. connectable units,
refer to the following table.
Unit type
*
*
U series U series U series
*
*
U series
U series U series
*
*
*
U series
U series
U series
TCC-Link
8
– 19 –
Wiring example
Outdoor Power supply
Ground
terminal
Indoor unit
Ground
*
*
*
*
Disconnect
*
switch per
NEC
Indoor
power
supply
Circuit
208 /
breaker
230-1-60
Outdoor Power supply
Circuit breaker
Circuit breaker
Header outdoor
Follower outdoor
unit
unit
Ground
terminal
Control wiring between outdoor units
Control wiring between indoor and outdoor units
Control wiring between indoor units
Indoor unit
Indoor unit
Ground
Ground
Disconnect
Disconnect
switch per
switch per
NEC
NEC
Remote control
Remote control
Indoor unit
Disconnect
switch per
NEC
Remote control
Group control
38-EN
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