SUPER DIGITAL

4. Wiring specifications
• Use 2-core with no polar wire.
• Match the length of wire to wire length of the central
control system.
If mixed in the system, the wire length is lengthened
with all indoor/outdoor inter-unit wire length at side.
• To prevent noise trouble, use 2-core shield wire.
No. of wires
• Connect the shield wire by closed-end connection and apply open process (insulating process) to the last
terminal. Ground the earth wire to 1 point at indoor unit side. (In case of central controlling of digital inverter
unit setup)
2
CAUTION
Size
Up to 1000m: twisted wire 1.25mm 2
Up to 2000m: twisted wire 2.0mm 2
Central control device
U1 U2
1) Closed-end connection of shield wire (Connect all the connecting parts of each indoor unit)
2) Apply open process to the last terminal (insulating process).
3) Ground earth wire to 1 point at indoor unit side.
Caution 2
Caution 1
Central control system wiring
Caution 3
Outdoor unit
1 2 3
1 2 3 1 2 3 1 2 3
: TCC-LINK adapter
(This option)
Indoor unit
Master
unit
Sub unit
U3 U4 1 2 3 U3 U4 1 2 3
1 2 3
Sub unit
1 2 3 U3 U4
Master unit
1 2 3
A B
A B
A B
A B
A B
Remote controller
Remote controller Remote controller Remote controller
(Group operation)
Earth terminal
(Twin operation)
5. P.C. board switch (SW01) setup
When performing collective control by customized setup only, the setup of terminator is necessary.
• Using SW01, set up the terminator.
• Set up the terminator to only the adapter connected to the indoor unit of least line address No.
Central control device
U1
U3
U2
U4
Central control device
U1
U3
U2
U4
Central control devices: Max. 10 units
Refrigerant line 1
Refrigerant line 2
Refrigerant line 3
Refrigerant line 4
Outdoor unit
1 2 3
1 2 3
1 2 3
1 2 3
Indoor/outdoor inter-unit wire (AC230V serial)
Central control system wiring
Indoor unit
Master
unit
Sub
unit
U3 U4 1 2 3 U3 U4 1 2 3
1 2 3
Sub unit
1 2 3 U3 U4
* Wiring for No.1 and 2 only
Master unit
1 2 3
TCC-LINK adapter
This product
( sold separately )
A B
Remote controller
A B
A B
A B
A B
Remote controller wiring
Remote controller Remote controller Remote controller Remote controller
Group operation (Max. 8 units)
Twin operation
Line address
SW01 Bit 1
SW01 Bit 2
Remarks
1
ON
OFF
Turn SW01 Bit 1 to ON.
(Reference) Setup contents of switch
SW01
Bit 1 Bit 1
Terminator
OFF
ON
OFF
ON
OFF
OFF
ON
ON
None
100Ω
75Ω
43Ω
2
OFF
OFF
As status shipped from factory
4
OFF
OFF
As status shipped from factory
Remarks
Mixed with multi (Link wiring) at shipment from factory
Central control by digital inverter only
Spare
Spare
(OFF at shipment from factory)
(OFF at shipment from factory)
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