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Power supply
Power supply
Power supply switch/circuit breaker or power supply wiring/fuse rating for indoor units should be selected by the
accumulated total current values of the indoor units.
Power supply wiring
Control wiring, Central controller wiring
2-core with polarity wires are used for the Control wiring between indoor unit and outdoor unit and Central
controller wiring.
To prevent noise trouble, use 2-core shield wire.
The length of the communication line means the total length of the inter-unit wire length between indoor and
outdoor units added with the central control system wire length.
▼
Communication line
TU2C-Link models (U series) can be combined with TCC-Link models (other than U series).
For details of communication type, refer to the following table.
Communication type and model names
Communication
type
(U series and future models)
MMY-MUP
Outdoor unit
This letter indicates U series model.
MM -UP
Indoor unit
This letter indicates U series model.
RBC-ASCU
Wired remote
controller
This letter indicates U series model.
RBC-AXU
Wireless remote
controller kit &
receiver unit
This letter indicates U series model.
U series outdoor unit : SMMS-u (MMY-MUP )
Other than U series outdoor unit : SMMS-i, SMMS-e etc. (MMY-MHP )
33-EN
220V–240V ~, 50 Hz
208V–230V ~, 60 Hz
B
e
o l
w
2
0
m
2
5 .
m
B
e
o l
w
5
0
m
4
0 .
m
TU2C-Link
TCC-Link
(Other than U series)
Other than U series
MMY-MHP
MCY-MHP
MMY-MAP
Other than U series
MM -AP
Other than U series
Other than U series
– 17 –
<In the case of combining with outdoor units of Super Modular Multi System u series (SMMS-u)>
Uv line and Uc line (L2, L3, L4)
(2-core shield wire, non-polarity)
Uh line (L1)
m
²
(2-core shield wire, non-polarity)
m
²
•
U (v, h, c) line means of control wiring.
Uv line : Between indoor and outdoor units.
Uh line : Central control line.
Uc line : Between outdoor and outdoor units.
Uv line and Uc line are independent from another refrigerant line. Total length of Uv and Uc lines
•
(L3+L4) in each refrigerant line is up to 1000 m.
Central control device
<U series>
Outdoor unit
(SMMS-u)
<U series>*
Indoor unit
<U series>*
Remote controller
*Even if the indoor unit and the remote controller are "other than U series", the wiring
specification are the same.
0.5 mm²
(Up to 500 m)
Wire size :
0.75 to 1.25 mm²
(Up to 1000 m)
0.75 to 1.25 mm²
(Up to 1000 m)
Wire size :
2.0 mm²
(Up to 2000 m)
[Uh line]
L1 = Up to 2000 m
[Uv and Uc line]
L2 = Up to 1000 m
(L3+L4) = Up to 1000 m
34-EN
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