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2.2 Operation conditions
1. Power and voltage range:
Input voltage: single phase 198V~242V;
AC input power frequency: 50Hz/60Hz;
2. Operating environment temperature: -15℃ ~+43℃;
3. Operating environment humidity: RH40%~RH90%.
2.3
Key words
2.3.1 State indication
1. LED for state indication
1) Normal state
① On
The LED will be on when any one of the following occur:
a) In the centralized controller network, one or more air conditioners are under operating
state.
b) Through the centralized controller's operation, when the centralized controller is sending
order to the air conditioners,the LED will be on. When centralized controller finishes
sending,the LED will be off.
② Off
The air conditioners in the centralized controller network are all under off status.
2) Abnormal state
If the air conditioners in the centralized controller network are error or the controller network
is error, the LED will flash as 2 Hz.
2. Backlight
The backlight will be on by pressing any key except"
The backlight will be on,when centralized controller is operating,
The backlight will be off, if no key is pressed over 30s.
3. Buzzer
When the backlight is on and the centralized controller keys are un-lock, any key (except for
the
) is pressed ,the centralized controller will carry on relative function, the buzzer will buzz
once . If this key has long press function, the centralized controller will carry on the relative
functin, but the buzzer will buzz once only.
When the backlight is off, any key (except for
on, the centralized controller will not operate the key, and the buzzer will not buzz.
2.3.2 Power on or reset
When the centralized controller is po w ered o n or reset through the key
The buzzer long buzz for 2 seconds: all display segments of LCD are luminous for 2 seconds
and then goes off;
1 secon d later, th e s y ste m e nters the nor m a l display status .
is in the
main page
air conditioners in the
the search is finished, the centralized controller enters the mode setting p a ge,
O ce
n
and sets t he first in-service air conditioner b y default.
Installation & Owner's Manual
10
di s l a y
p
status an displa
d
network.
",when the backlight is off.
key) is pressed, only the backlight is lighted
y s
the first page, an searches the in-service
:
The centralized controller
d
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