Toshiba MMK-UP0051DHPL-E(TR) Service Manual page 120

Wired remote controller wiring
This wiring is not required when using the supplied wireless remote controller.
• For wiring remote controllers a 2 core non polarity wire must be used.
Wired remote controller wiring, remote controller inter-unit wiring
Total wire length of wired remote controller wiring and remote
controller inter-unit wiring = L + L1 + L2 + ... Ln
Total wire length of wired remote controller inter-unit wiring = L1 + L2 + ... Ln
• The remote controller wire (Communication line) and AC 208-240V 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, etc.
• 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 10 Electrical connection.
Indoor unit
L
Wired remote
controller
Wired remote
wiring
controller
Max. number of connectable indoor units, and communication type
Outdoor unit
Indoor unit
Remote controller
Communication type
Max. number of connectable
unit
＊ : Other than U series
CAUTION
Indoor unit
L1
Remote controller inter-unit wiring
U series U series U series
U series U series
＊
U series U series
＊
TU2C-Link
16
- 120 -
Wire size: 0.5 mm² to 2.0 mm²
In case of wired type only
In case of wireless type included
Indoor unit
L2
For number of max. connectable units,
refer to the following table.
Unit type
U series
＊
U series U series
＊
U series
＊
TCC-Link
8
Up to 500 m
Up to 400 m
Up to 200 m
Indoor unit
Ln
＊ ＊ ＊
＊ ＊
U series
＊ ＊