Toshiba MMY-MUP0721FT6P-UL Service Manual page 144

Procedure to set up the communication method manually
The communication method and the terminal resistance settings can be changed by setting the outdoor DN
code (O.DN) and the Indoor Unit Function Code (I.DN).
(See also 6-4. Method to set Outdoor Unit Function Code No. (O.DN) for operation method.)
<Procedure to set the TU2C-Link communication setting>
1) Set the Outdoor Unit Function Code (O.DN) [082] of all outdoor units to "0003".
2) Set the Indoor Unit Function Code (I.DN) [FC] of all indoor units to "0003".
3) Set the Indoor Unit Function Code (I.DN) [1FC] of the farthest indoor unit to "0001" (set the indoor
terminating resistor to ON).
* If which indoor unit is the unit in the farthest room is unknown, perform the communication method
automatic setup.
O.DN[82] Communication setting
Line (system) address (DIP SW)
Header
Outdoor Indoor
Outdoor
2 unit 1
1
controller
3 3 3
0
7 – 7
1
0
(Farthest)
Indoor Indoor
Indoor
unit 2 unit 4
unit 3
controller controller controller
3 3 3
0 1 0
7 7 7
2 3 4
1
0 0
(Header)
- 144 -
Indoor
unit 5
3 I.DN[FC] Communication setting
I.DN[1FC] Indoor termination
0
resistance setup
7 I.DN[12] Line (system) address
5 I.DN[13] Indoor unit address
2 I.DN[14] Group address
(Follower)