Installation Manual
‒
39
‒
39-EN
q
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.
1 2 3
A B
U3 U4
U1
U3
U2
U4
A B
U3 U4
A B
U1
U3
U2
U4
1 2 3
1 2 3
1 2 3
1 2 3
A B
U3 U4
1 2 3
1 2 3
A B
1 2 3
1 2 3
A B
1 2 3
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
System interconnection wire
(AC 220-240 V 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)
