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System Outline
2. Use weekly timer to realize two units auto-changeover 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 weekly timer to fulfill double units
switch weekly timing function, the system needs to be connected with weekly timer;
each detector 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.
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
6
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