Toshiba MMW-UP0271LQ-E - Page 29

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 Remote controller wiring
• 2-core with non-polarity wire is used for the remote controller wiring and group remote controllers wiring.
CAUTION
• The remote controller wire (Communication line) and AC 220 - 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 9 Electrical connection.
M-HWM: Mid temperature Hot Water Module
H-HWM: High temperature Hot Water Module
Remote controller wiring, remote controller inter-unit
wiring
Wire size: 0.5 mm² to 2.0 mm²
Total wire length of remote controller wiring and
remote controller inter-unit wiring = L + L1 + L2 + …
Ln
In case of one remote
controller
Up to 500 m
In case of two remote
controller
Up to 400 m
Max. length of each remote control wiring between indoor units = L1, L2, … , Ln Up to 200 m
Indoor unit
Remote controller inter-unit wiring
Indoor unit Indoor unit Indoor unit
Remote
controller
(Max. 8 units)
Remote
controller
wiring
Correct
Indoor unit Indoor unit Indoor unit
Remote
controller
(Max. 8 units)
Incorrect
Remote controller inter-unit wiring
Remote
controller
wiring
HWM
Remote
controller
(Max. 8 units)
Correct
Remote controller inter-unit wiring
Remote
controller
wiring
M-HWM
M-HWM
M-HWM
M-HWM
NOTE
It is not possible to connect HWM and any indoor units together for group control.
It is not possible to connect M-HWM and H-HWM together for group control.
Max. number of connectable indoor units, and communication type
: 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.
Unit type
Outdoor unit U series U series U series U series
Indoor unit U series U series U series U series
Remote controller U series U series U series U series
Communication type TU2C-Link TCC-Link
Max. number of connectable
units
16 8
Remote
controller
(Max. 8 units)
Correct
Remote controller inter-unit wiring
Remote
controller
wiring
H-HWM
H-HWM
H-HWM
H-HWM
Remote
controller
(Max. 8 units)
Incorrect
Remote controller inter-unit wiring
Remote
controller
wiring
M-HWM
M-HWM
H-HWM
H-HWM
(*): In the case of multiple refrigerant systems
55-EN 56-EN