Toshiba MMU-AP0091H Installation Manual page 150

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 header unit.
<Operation procedure>
Power ON
Set up the operation mode of the remote controller.
(If it is not set up, the operation starts with the current mode.)
(FAN/COOL/HEAT)
Set SW01 on the interface P.C. board of the header unit to [2],
Sw02 to [7], and SW03 to [1] respectively. ([CH ] is displayed
on 7-segment display [A].)
Push SW04 on the interface P.C. board of the header unit for
2 seconds or more.
The indoor unit to be started operates.
Push 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,
and SW03 on the interface P.C. board of the header unit to
[1], [1], [1] respectively.
Be sure to turn on power at the outdoor side after power-ON of indoor unit.
Interface P.C. board 7-segment display [A]
150
If an error is already displayed under condition of
SW01 [1], SW02 [1], SW03 [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,
[ ] or [ ] 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
7-segment display [B]
SW04 SW05
SW01 SW02 SW03
<Rotary switch>
)