Installation Manual
‒ 37 ‒
37-EN
T 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.
123
AB
U3 U4
U1
U3
U2
U4
AB
U3 U4
AB
U1
U3
U2
U4
123 123
123
123
AB
U3 U4
123123
AB
123
123
AB
123
Refrigeration
system 1
Refrigeration
system 2
Refrigeration
system 3
Refrigeration
system 4
Central
control
device
Central
control
device
Central control device: Up to 10 units
Outdoor
unit
Indoor / Outdoor connecting wires
(AC 220-240V serial)
Central control wires
*Connect 1 and 2 only
Follower
indoor unit
Follower
indoor unit
Indoor
unit
Follower
indoor unit
Header
indoor
unit
Header
indoor
unit
TCC-LINK
adapter
(option)
Required for
indoor units
other than high
wall type
Remote
controller
wiring
Remote
controller
Remote
controller
Remote
controller
Remote
controller
Group operation (up to 8 units) Twin and triple system (example of triple system)
Line address 1 2 4
SW01 bit1 ON OFF OFF
Remarks
Set bit1 of
SW01 to ON
Factory
default
Factory
default
(OFF at factory default)