Toshiba MMF-UP0151H-E Installation Manual page 17

 Remote controller wiring
• 2-core with non-polarity wire is used for the remote controller wiring and group remote controllers wiring.
Remote controller wiring, remote controller inter-unit
wiring
Total wire length of remote controller wiring and
remote controller inter-unit wiring = L + L1 + L2 + ...
Ln
Max. length of each remote control wiring between indoor units = L1, L2, ... , Ln
CAUTION
• The remote controller wire (Communication line) and AC 208 V to 240 V 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 7 Electrical connection.
Indoor unit
L
Remote
controller
L1
wiring
Remote
Remote controller inter-unit wiring
controller
Max. number of connectable indoor units, and communication type
Outdoor unit U series
Indoor unit U series
Remote controller
U series
Remote sensor
Communication type TU2C-Link
Max. number of connectable
16
units
: Other than U series
REQUIREMENT
After carrying out installation of additional indoor unit, relocation, or repairing, set the addresses again.
For its detail, refer to the Installation Manual attached to the outdoor unit.
31-EN
Wire size: 0.5 mm² to 2.0 mm²
In case of one remote
Up to 500 m
controller
In case of two remote
Up to 400 m
controller
Up to 200 m
Indoor unit Indoor unit Indoor unit
L2 Ln
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
TCC-Link
8
 Wiring between indoor and outdoor units
NOTE
A wiring diagram below is an example for connection to SMMS-u series. For connecting to other outdoor unit
series, refer to the Installation Manual attached to the outdoor unit to be connected.
▼Wiring example
Outdoor Power supply
380 V - 415 V ~, 50 Hz
380 V ~, 60 Hz
L1 L2 L3 N
Earth
terminal
S: The ground of a
shielded wire
Indoor unit
Earth
U series
Indoor power supply
220 V - 240 V~, 50 Hz
208 V - 230 V~, 60 Hz
Circuit breaker,
Power switch
– 16 –
Outdoor Power supply
380 V - 415 V ~, 50 Hz
380 V ~, 60 Hz
Circuit breaker Circuit breaker
Outdoor unit
Outdoor unit
Header outdoor
Follower outdoor
Uv Uh Uc Uv Uh
U1 U2 U3 U4 S U 5 U6 S L1 L2 L3 N U1 U2 U3
Earth
terminal
S: The ground of a shielded wire
Control wiring between outdoor units (Shield wire)
Control wiring between indoor and outdoor units (Shield wire)
Control wiring between indoor units (Shield wire)
Indoor unit Indoor unit
Earth Earth
L N Uv(U1) Uv(U2) A B L N Uv(U1) Uv(U2) A B
A B A B
Remote controller Remote controller
Pull box Pull box
Uc
U4 S U 5 U6 S
Indoor unit
Earth
L N Uv(U1) Uv(U2) A B L N Uv(U1) Uv(U2) A B
A B
Remote controller
Pull box
Group control
32-EN