Toshiba SMMS-u MMY-MUP0801HT8 Quick Reference page 77

(4) Batch start/stop (ON/OFF) function
This function is provided to start/stop collectively all the indoor units connected to the same system by using
switches on the interface board of the header unit.
<Operation procedure>
Power ON
[1]
Set up the operation mode of the remote controller.
(If it is not set up, the operation continues with the current mode.)
(FAN/COOL/HEAT)
[2]
Set SW01/SW02/SW03 on the interface P.C. board of the header
unit to [2/7/1].
([C.H ] is displayed on 7-segment display [A].)
[3]
Press SW04 on the same board for 2 seconds or more.
[4]
The indoor unit to be started operates.
[5]
Press the push-switch SW05 on the interface P.C. board of the
header unit for 2 seconds or more.
[6]
After test operation, return the rotary switches SW01/SW02/SW03
on the interface P.C. board of the header unit to [1/1/1].
Interface P.C. board
Be sure to turn on power at the indoor side
before power-ON of outdoor unit.
If the discharge temperature does not change
though COOL or HEAT has been set up from the
remote controller, misconnection is considered.
Push switch
SW04
7-segment
display [A]
SW01
– 77 –
If a check code is already displayed with SW01/SW02/SW03
being [1/1/1], return the status to normal one according to
troubleshooting and then execute a test operation.
The unit which is not given with priority by heating
priority control, cooling priority control, and selection
of cooling or heating mode is not operated.
In this case, " operation ready" or "
mode controlled" is displayed on the remote controller.
Start
Operation check
Stop
End
SW05 SW06
SW02 SW03
Rotary switches
operation
7-segment
display [B]