Chroma electronics introduces microcontroller-based timers with quartz crystal for accurate timings. These timers are housed in sturdy metallic case with mains output socket for connecting to ac directly. They operate on 230 v ac. Auto/manual [a/m] switch is provided to bypass the timer, i.E. In auto model ac will operate as per timers settings but in manual mode the timers will not come in picture. Mains circuit breaker protect ac against short-circuits, spikes surges, over loading, etc. When the timers are switched on, there will be fix power-on delay to increase the life of compressor. Master-on and master-off timings decide the status of the timers. During master-on the ac will remain on in cyclic-on mode and off in cyclic-off mode while during master-off the ac will shutoff completely.
