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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.
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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.
Wireless remote
RBC-AXU
***
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
1116950170_01_EN.indd 17
1116950170_01_EN.indd 17
208/230-1-60 Hz
Below 164'0.5" (50 m)
AWG14
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)
Wire size :
(2-core shield wire, non-polarity)
Uh line (L1)
Wire size :
(2-core shield wire, non-polarity)
• 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 3280'10" (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.
AWG20
(Up to 1640'5" (500 m))
AWG16
(Up to 3280'10" (1000 m))
AWG16
(Up to 3280'10" (1000 m))
AWG14
(Up to 6561'8" (2000 m))
[Uh line]
L1 = Up to 6561'8" (2000 m)
[Uv and Uc line]
L2 = Up to 3280'10" (1000 m)
(L3+L4) = Up to 3280'10" (1000 m)
10/21/20 12:31 PM
10/21/20 12:31 PM
34-EN
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