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System Outline
4. Use central controller and weekly timer to realize auto-changeover + group
control + weekly timing function:
The detector is connected with two same model air conditioners by the 4-core
screw fixed terminals of air conditioner interface; then accordingly set the dial-code
switch of the detector in double units working mode, and the double units switch
time is default 24 hours; the address number setting shall be performed according
the planned program, for specific setting and corresponding address, please refer
to the dial-code switch setting in detector's operation manual; use central controller
and weekly timer to fulfill double units switch group control function with weekly
timing function, the system needs to be connected with central controller and weekly
timer; each detector, central controller and weekly timer is connected with shielded
twisted pair communication bus by the 2-core screw fixed terminals (A and B) of
its RS-485 interface; the communication bus must be shielded and grounded, and
the resistors in its two ends shall be suited.
RS-232
A RS485 B
PROGRAM NO.
1
2
3
4
5
6
7
Program
Holiday
Number
SET 1 ON
OFF
Hour
Cancel
SET 2 ON
OFF
Min.
Confirm
1
2
3
4
5
6
7
Time
Week
NO.
ON/OFF
8
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