Toshiba MMY-MUP0721FT6P-UL Service Manual page 338

Appendix 3 Model settings for case that data cannot be recovered
The model settings are unset on the service P.C. board, and in an unset state, the check code [L10] will be
displayed and operation will not be available.
The model settings will be recovered with the data recovery, but if data recovery cannot be performed, set
the Outdoor Unit Function Code (O.DN) [003] manually according to the model name of the outdoor unit.
Normal operations may not be available if the settings are different from those before replacing.
Model name
Undefined
MMY-MUP0721FT9*
MMY-MUP0961FT9*
MMY-MUP1201FT9*
MMY-MUP1441FT9*
MMY-MUP1681FT9*
MMY-MUP0721FT6*
MMY-MUP0961FT6*
MMY-MUP1201FT6*
MMY-MUP1441FT6*
MMY-MUP1681FT6*
MMY-MUP1921FT6*
MMY-MUP072H1FT9*
MMY-MUP096H1FT9*
MMY-MUP120H1FT9*
MMY-MUP072H1FT6*
MMY-MUP096H1FT6*
MMY-MUP120H1FT6*
For the communication method setting (TCC-LINK / TU2C-LINK), all outdoor units and all indoor units in the
same system must have the same settings. The factory setting of the service P.C. board is TCC-LINK
communication. Check the DN code of the connected outdoor unit or indoor unit, and if it is set to TU2C-
LINK, set the service P.C. board to TU2C-LINK as well.
TCC-LINK
TU2C-LINK
O.DN [003]
0000
0001
0002
0003
0004
0005
0006
0007
0008
0009
0010
0011
0012
0013
0014
0015
0016
0017
Outdoor unit Indoor unit
(O.DN) [082] (I.DN) [FC]
0000
0003
0000
0003
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