Toshiba MCY-MUG0401HSW-E Service Manual page 145

(1) Cooling test operation function
This function is provided to change collectively the mode of all the indoor units connected to the same system for
the cooling test operation mode, by using switches on the interface P.C. board of the outdoor unit.
<Operation procedure>
[1]
Set SW01 / SW02 / SW03 on the interface P.C. board of the outdoor
unit to [2/5/1]. ([C. ] is displayed on 7-segment display [A].)
[2]
Press SW04 on the same board for 2 seconds or more.
[3]
[Test run] is displayed on the remote controller of the
indoor unit to be operated.
Check that [ – C] is displayed on 7-segment display [B]
on the interface P.C. board of the outdoor unit.
[4]
Return SW01 / SW02 / SW03 on the interface P.C. board of the
outdoor unit to [1/1/1], or press the push-switch SW05 for 2 seconds or
more.
Interface P.C. board
NOTE) The test operation returns to the normal operation after 60 minutes.
• The test run is a forced run that ignores the set temperature. Be sure to stop the test run after work, paying
attention to the room temperature.
• After 60 minutes, the test run will be completed to protect the equipment, and the normal operation will be started
according to the set temperature. However, if there is no remote controller (using a Central controller), please
manually stop the test run after 60 minutes because there are some type of indoor unit that will continue operating
test run even after 60 minutes.
Power ON
Push switch
7-segment
display [A]
Be sure to turn on the power at indoor
side before power-ON of outdoor unit.
SW04 SW05
SW01 SW02
<Rotary switches>
144
Start
Operation check
Stop / End
SW06
7-segment
display [B]
SW03