Outdoor Unit Automatic Backup Operation Outline - Toshiba MMY-MUP0961HT6P-UL Service Manual

9-5. Outdoor Unit Automatic Backup Operation Outline

(available only for TU2C-LINK)
Outline
In case of the outdoor unit failure, this product supports automatic backup operation for both header and follower units.
In system with connection of two or more outdoor units, if the automatic backup operation setting is ON and the following
check codes occur, the automatic backup operation function allows continuous operation.
Check Code：F** F04,F05,F06,F07,F08,F09,F12,F15,F16,F23,F24,F31
Check Code：H** H03,H08,H16
Check Code：P** P03,P04,P05,P07,P11,P17,P18,P20,P22,P26,P29
If the following check codes occur, automatic backup operation function cannot be carried on and trouble/
abnormality is confirmed. In this case, do [Outdoor Unit Backup Setting] as described before.
Check Code：E** Indoor-outdoor unit communication signal trouble
Check Code：L** Setting trouble
H01,H02,H06,H07
Check Code：H**
Check Code：P** P10,P13,P15,P19
If the check codes above occur, please refer to check code diagnosis procedure.
Outdoor Unit Automatic Backup Setting
To turn ON the automatic backup operation setting, change the outdoor unit check code 3D to 0.
(The factory setting is ON, to disable the automatic backup operation setting, change the outdoor unit DN code 3D to 1)
Check Code (----) Display during Outdoor Unit Automatic Backup Operation
If the outdoor unit is on the automatic backup operation, check code(----)will be displayed on the remote controller.
The check code(----)will be also displayed on the outdoor unit targeted for backup operation, please contact a service
center immediately to repair the failure outdoor unit.
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