21
10. Test run of the central controller
(1) Power on for all indoor units. Next, power on for central controller.
will flash, checking the indoor unit address automatically.
(2) If group No. displayed on central controller is not same as indoor unit No.*
which is connected, see Fig. 7 and setting again.
*In case of group control, main unit No. only.
11. How to perform an air conditioner test run
(1) Hold down the button of the central controller for at least four seconds.
• During the test run, “TEST” appears on the LCD display.
(2) Press the and buttons.
• The temperature cannot be adjusted at the “TEST” position.
Do not use this procedure except when performing a test run since it will
strain the equipment.
(3) Upon completion of the operation, press the button, and check that
“TEST” on the LCD display has gone off.
OI-607-21EG
01_TCB-SC642TLE_EG_II.fm Page 21 Friday, June 25, 2004 3:04 PM
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