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• Set up a line address for each refrigerant system.
• Set up a line address so that it is not duplicated with other systems.
(If the central control is conducted with VRF systems, set up a line address so that it is not also duplicated with line address
of the VRF systems.)
• When performing a central control of over 30 systems, the address setup method needs to be changed.
(including a VRF system)
*adapter
*adapter
*adapter
Central
control
devices
Central control wiring
System A
System B
System C
Outdoor
Indoor
(Master)
Remote
controller
* TCB-PCNT30TLE
Outdoor
Indoor
(Sub)
Outdoor
Indoor
(Master)
Remote
controller
Outdoor
Indoor
(Sub)
Outdoor
Indoor
(Sub)
Outdoor
Indoor
Remote
controller
After automatic address
After change of manual address
Code 12
Line address
RXWGRRU
Indoor unit address
Group address
000
1
000
1
000
1
000
2
000
1
000
2
* A wired remote controller (RBC-AMT21E
or RBC-AMT32(31)E, RBC-AMS41E) is
required for address change.
No change
Line address
outdoor
Indoor unit address
Group address
000
1
000
1
000
1
000
2
000
1
2
000
000
1
000
1
000
1
000
2
000
1
000
2
000
3
000
1
000
2
Need to change line address
3
000
1
000
1
000
0
000
1
0
000
Need to change
line address
000
1
000
2
000
1
000
2
000
1
0001
0003
0004
0005
0006
A central control connection example of a system where both VRF and DI/SDI are used is shown below. The VRF and DI/SDI
subsystems are connected through the central control wiring and to the central control devices.
Central Control
Device1
U1
U3
U2
U4
U3
U4
U1
U2
U6
U1
U2
A
B
RMTC
U1
U2
A
B
RMTC
U3
U4
U1
U2
U5
U6
U3
U4
U1
U2
U5
U6
U1
U2
A
B
RMTC
U1
U2
A
B
RMTC
U1
U2
A
B
ODU
Indoor
PCB
A
B
RMTC
TCB-PCNT30TLE2
U3
U4
123
123
Indoor
PCB
A
B
RMTC
123
ODU
Indoor
PCB
A
B
RMTC
123
123
U3
U4
TCB-PCNT30TLE2
U3
U4
U1
U2
U5
U5
U6
Central Control
Device2
U1
U3
U2
U4
VRF
ODU
IDU
IDU
IDU
IDU
IDU
U
D
O
U
D
O
U
D
O
central control wiring
Master/Header
Single
Sub/Follower
Header
Header Follower
Follower
Header
Individual Individual
Individual
Follower
Group
Twin
Master/Header
After automatic address setup, it is necessary to change the line address from the wired remote controller for each system.
Reason : After automatic address setup, all of the line addresses will become “1” except in a group control and then a
duplicated address error “E08” will be outputted.
DI/SDI
Code 13
Code 14
Code 12
Code 13
Code 14
Network Addressing DI/SDI and VRF Systems