Toshiba MCY-MHP0305HT-C Service Manual page 75

(3) 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 outdoor unit.
<Operation procedure>
Power ON
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)
Set SW01 / SW02 / SW03 on the interface P.C. board of the outdoor
unit to [2/7/1].
([C.H ] is displayed on 7-segment display [A].)
Press SW04 on the same board for 2 seconds or more.
The indoor unit to be started operates.
Press the push-switch SW05 on the interface P.C. board of the
outdoor unit for 2 seconds or more.
After test operation, return the rotary switches SW01 / SW02 / SW03 on
the interface P.C. board of the outdoor unit to [1/1/1].
Interface P.C. board
SW06 SW07 SW09 SW10
SW11 SW12 SW13 SW14
SW16 SW17
SW30
Be sure to turn on the power at indoor
side before power-ON of outdoor unit.
SW04 SW05 SW15
Push switch
D600 D601 D602 D603 D604
SW01 SW02 SW03
7-segment
display [A]
74
97
If an error 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
If the discharge temperature does not change though
COOL or HEAT has been set up from the remote
controller, misconnection is considered.
Stop
End
Push switch
SW04 SW05 SW15
7-segment
display [B]
D600 D601 D602 D603 D604
SW01 SW02 SW03
Rotary switches
operation