Toshiba RAV-SM456BT-TR, RAV-SM406BT-TR Wiring Specifications, C. Board Switch SW01 Setup

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 SMMS 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 Size

2Up to 1000m: twisted wire 1.25mm2

Up to 2000m: twisted wire 2.0mm2

•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 (DI, SDI) unit setup)

CAUTION

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).

Central control device

U1 U2

3) Ground earth wire to 1 point at indoor unit side.

Caution 2

Outdoor unit

1 2 3

Indoor unit U3 U4 1 2 3

A B

Remote controller

Caution 1												Central control system wiring													Caution 3
																																: 1:1 model connection
				1		2		3			1		2		3			1		2		3
																																	interface
																																	(TCC-LINK adapter)
																																	(This option)
			Header				unit		Follower unit							Follower unit							Header unit										Follower unit
	U3	U4		1		2		3			1		2		3			1		2		3			U3	U4	1		2		3			1		2		3
					A		B					A		B					A		B							A		B					A		B
																										Earth screw
	Remote controller									Remote controller							Remote controller
						(Group operation)																		(Triple 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 interface connected to the indoor unit of least line address No.

Central control device

U1 U2

U3 U4

Central control device

U1 U2

U3 U4

Central control devices: Max. 10 units

Refrigerant line 1

Outdoor unit

Refrigerant line 2 Refrigerant line 3 Refrigerant line 4

1 2 3

Indoor unit U3 U4 1 2 3

A B

1:1 model connection interface

(TCC-LINK adapter) ( This product ) sold separately

Remote controller

	1	2	3
		Header
		unit
U3 U4	1	2	3

A B

Remote controller

1 2 3 1 2 3

Followerunit						Follower unit
	1		2		3		1		2		3
		A		B				A		B
Remote controller wiring
Remote controller						Remote controller

Indoor/outdoor inter-unit wire (AC230V serial) Central control system wiring

					* Wiring for No.1 and 2 only
				Header unit			Follower
							unit
U3 U4	1		2	3		1	2	3
		A B					A B

Remote controller

					Group operation (Max. 8 units)			Twin/Triple operation (Example of triple)
Line address		1			2			4
SW01 Bit 1		ON			OFF			OFF	(OFF at shipment from factory)
SW01 Bit 2		OFF			OFF			OFF	(OFF at shipment from factory)
Remarks	Turn SW01 Bit 1 to ON.				As status shipped from factory			As status shipped from factory
(Reference) Setup contents of switch
SW01			Terminator				Remarks
Bit 1	Bit 1
OFF	OFF			None		Mixed with SMMS (Link wiring) at shipment from factory
ON	OFF			100Ω		Central control by digital inverter only
OFF	ON			75Ω		Spare
ON	ON			43Ω		Spare

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