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Brief description on functions
The remote central controller (hereunder as central controller ) is a neces-
sary part at the option of the user for Haier commercial air conditioner remote
monitoring system group control functional network . A remote control moni-
tor(or dector) is used to transform standard digital interface and realize bus co-
de address communication.Connecting the air conditioner directly,it undertakes
local processing and gathering of air conditioner control and operation inform-
ation,transmitting control and information data to the central controller.A netw-
ork air conditioner (hereunder as air conditioner ) is defined as an air conditio-
ner having an indoor computer board with remote control interface, only which
could combine with parts such as the monitors and central controller to form a
remote monitoring system group control network , fulfilling the function of
data exchange and monitoring .
The central controller could consult through the monitors as well as display
through the LCD the main work status of the air conditioner. With it the work
status of main functions of the air conditioner could be set through key input
and LCD display . It can also monitor the basic working status of all air
conditioners in the network . In addition, the central controller is equipped with
a 24 hours real-time clock system for centrally control the clocks in the network .
Brief descriptions are given as follows :
1. Communication function
Communicate with the monitors in the group control network
To communicate with the monitors through the RS-485 bus (A, B). The
central controller sends commands to and receives response from the monitor;
communication by address enables sending and receiving control information,
work information and fault information between the monitors and the central
controller.
2. LCD display function:
The LCD could display the fundamental status of air conditioning units (are
the units existing? On/off? Fault? Are units group selected? Cursor and the
current unit no.);
The LCD can display the working status of the air conditioning unit with the
current number (mode, fan speed, temperature setting, room temperature,timer,
error code, central/remote control status);
The working status of the central controller (monitor/set status, panel locking
status, signaling status).
3. Key input function:
The keys for moving the current unit number cursor and for group selection:
, ,
, , SELECT;
The keys for setting working status of the air conditioning unit and control
conditions: ON/OFF, MODE, FAN SPEED, TEMP TIME
TIMER, CENTRAL/REMOTE, SET;
The key for locking key function of the central controller: LOCK.
4. Unit number setting function:
To enrich the control functions of Haier commercial air conditioner remote monit-
oring system, multiple controllers could be set to work together for a combination
of multiple functions. For this, the central controller is provided with a two-digital
switch for setting controller address.
2
/
, CLOCK,
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