Toshiba RAV-HM561KRTP-E Installation Manual page 38

Centrally control the system by the SDI, DI series on their own setting for the terminating
resistor is required.
• Use switch SW01 for the setting.
• Make the terminating resistor setting only for the indoor unit with the smallest line address number.
Central Central
control control
device device
U1 U2 U1 U2
U3 U4 U3 U4
Refrigeration
system 1
Outdoor
unit
1 2 3
1 2 3
U3 U4
Indoor
unit
A B
Remote
controller
Line address
SW01 bit1
Remarks
37-EN
Central control device: Up to 10 units
Refrigeration
system 2
1 2 3
Header
indoor
unit
U3 U4 1 2 3
A B
TCC-LINK
adapter
(option)
Required for
indoor units
other than high
wall type
Remote
controller
Group operation (up to 8 units)
1 2
ON OFF
Set bit1 of Factory
SW01 to ON default
Refrigeration Refrigeration
system 3 system 4
1 2 3
Follower Follower
indoor unit indoor unit
1 2 3
A B
Remote
controller
wiring
Remote Remote
controller controller
Twin and triple system (example of triple system)
4
OFF
Factory
default
‒ 37 ‒
Installation Manual
1 2 3
Indoor / Outdoor connecting wires
(AC 220-240V serial)
Central control wires
*Connect 1 and 2 only
Header
indoor
unit
1 2 3 U3 U4 1 2 3
A B A B
(OFF at factory default)
Follower
indoor unit
1 2 3
A B