Toshiba MMY-MAP0806HT7(J)P, Service Manual

Page: 143 / 350

(
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>
0
Power ON
Start
Stop
End
Operation check
Be sure to turn on power at the indoor side
before power-ON of outdoor unit.
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 " operation
mode controlled" is displayed on the remote controller.
If the discharge temperature does not change
though COOL or HEAT has been set up from the
remote controller, misconnection is considered.
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
header unit for 2 seconds or more.
After test operation, return the rotary switches SW01/SW02/SW03 on
the interface P.C. board of the header unit to [1/1/1].
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)
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].)
7-segment display [A] 7-segment display [B]
SW04 SW05
<Rotary switches>
SW02 SW03 SW01
− 1 4 2 −