Hitachi Set Free mini-HNRQ1 Series, Service Manual

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OPERATION
6.3 Test Run by Wired Controller
(1) Turn on the power supply of the outdoor and indoor units for more than 12 hours.
(2) The Liquid Crystal Display (LCD) of the wired controller is shown as below:
(3) Press and hold the MODE “ ” and INCREASE “ ” simultaneously for at least 5 seconds, the
test run menu will be displayed.
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The total numbers of indoor units connected to the same wired controller is displayed on the LCD.
A twin combination (one set with two indoor units) is identified as “02”.
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The icon of operate mode “ ” and the icon of fan “ ” are blinking.
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Press the FAN ” ” to set the fan speed of the indoor units.
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Press the ON/OFF “ ” to turn on the air conditioning.
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The default setting for the test run time is a 120-minutes OFF timer. It can be adjusted by pressing the
INCREASE “ ” and DECREASE “ ”. The range of the timer is between 30 minutes and
600 minutes, with an interval of 30 minutes.
(4) After setting the test run menu, the LCD will be displayed as follow:
Notes:
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Louver angle switch is in auto swing mode.
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If the multiple indoor units are operated simultaneously and controlled by one wired controller, the all setting in the wired
controller is applied to every indoor unit which is connected to the same wired controller.
(5) Set the other wired controllers to test the other indoor units.
(6) To finish the test run, wait two hours (as a default setting), press ON/OFF “ ”, or press the MODE
“ ” and INCREASE “ ” simultaneously for at least 5 seconds.