Just installed the Progressive EMS-HW50C. There is 2 settings for the time delay. one is 136 seconds (02:16), and the other is 15 seconds. My question is does anyone know if the A/C units have a built in time delay. It appears mine does as it seems to take a few minutes for the units to start. With that said I left the unit with the factory 15 sec. delay.<br/>What...