7
Display
Description
A: When the unit is in the heating standby mode, the indicator appears.
B: The currently selected operation mode is displayed.
C: The currently selected FAN SPEED, Airflow Direction and SWEEP settings are
displayed.
D: This indication appears when the filter needs cleaning.
E: This indication appears only when an abnormality occurs within a unit.
F: The currently selected mode (ALL, ZONE or GROUP), ZONE number and GROUP
number are displayed.
G: The currently selected central control mode (1, 2, 3 or 4) is displayed.
H: Lights when any of the air conditioners under the central control is operating; turns off
when none of the air conditioners under the central control is operating. Blinks when
any conditioner is operating under abnormal conditions and its protection functionality
is working.
I: This indication appears while a test run is underway.
J: This indication appears when the temperature is set.
K: When turning on the power switch of the central controller, sign blinks for a few
minutes. While blinking, any controls using the central controller are inhibited. This is
because the central controller is verifying connected groups.
A
B
C
D
E
F
G
H
I
J
K
GROUP number display (no figure: no number registered)
GROUP state display ( : registered group, : currently selected
group)
Operation state display ( : on, no sign: off, : alarm)
OI-673-07EG
01_TCB-SC642TLE_EG.fm Page 7 Friday, June 18, 2004 10:02 PM
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