air conditioner controllers(Universal A/C control)

Universal A/C control: 1. Mode: auto, cool, dry, fan and heat 2. FAN: high, medium and low 3. Over heat/cold protection for room coil pipe 4. In heat mode, defrost according to temperature difference of inlet and outlet air 5. Lack of cooling agent(liquid) protection. 6. Out-door fan controlled by a standalone output to make defrost effect well 7. Blow residual heat function 8. 3 minutes protecting delay to restart compressor 9. Status memorized, and automatically come back to previous running status after power supply comes again. 10. Panel control all function, LED digits display 11. Avoid cold wind in heat mode 12. Two temperature sensors 13. Wind direction control 14. Emergent on/off key 15. Aux heater control 16. Timer inline/offline 17. Sleep