Toshiba MMU-AP0091H Installation Manual page 127

12-1. Address re-setup for central control of the
super-digital inverter and the digital inverter
POINT 1
When controlling collectively the super-digital inverter and the digital inverter, the adaptor named "1 : 1 model"
connection interface (TCB-PCNT30TLE) is necessary.
1. Cabling connection of control wiring
Attach an adaptor per 1 group control operation (including individual control).
Connect the adaptor to the header indoor unit in the group control. (For details, see POINT 3 .)
Central
control
devices
U3 U4
Adaptor
2. Cabling connection diagram with indoor control P.C. board
• For details, refer to Installation Manual.
• Parts included in the single-point chain line are optional accessories.
• There is non-polarity on the cables connected to U3 and U4 terminals.
Central control wiring
Indoor unit Indoor unit
Indoor Indoor
control control
P.C. board P.C. board
A B A B
Remote
controller
Connecting
terminal block
U3 U4
for control wiring
BLU BLU
1 2
1 2
CN40 (BlU)
CN51 (RED)
"1:1 model"
connection interface
Indoor unit
U3
Indoor
control Adaptor
P.C. board
A B
WHI
1 1 1 1
RED
2 2 2 2
RED
3 3 3 3
RED
4 4 4 4
RED
5 5 5 5
127
Indoor unit Indoor unit
U4
Indoor Indoor
control control
P.C. board P.C. board
A B A
Remote
controller
CN50 (WHI)
Indoor control
P.C. board
B