System Outline - Haier YCS-A001 Manual

System Outline

The weekly timer has its independent own power supply. Its communication interface
is RS-485 interface, and the two-core screw fixed terminals (A, B) is connected with
shielded twisted pair communication bus and set the address number different from those
of other controllers.
1. Use weekly timer to realize weekly timing function:
The detector is connected with one air conditioner by the 4-core screw fixed terminals
A+ and A- of air conditioner interface, then accordingly set the dial-code switch of the
detector in single unit working mode; 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 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.
View of the instrumentation
interface
Power cord
Resetting
Air Conditoner HMI
Power on/off
Indoor unit
Outdoor unit
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
5