Ice thermal storage coil systems and methods

The present invention is directed toward an ice-on-coil (IOC) thermal storage coil system and method utilizing "deep-tank" technology and dimensional relationship of coil height to coil width wherein the coil serpentine's height (vertical tube dimension) is greater than the width (the horizontal dimension), and wherein all manifold and header joints are above, or just below the water surface of the tank, easily visible and accessible for maintenance, assembly, leak-checking or repair. Another aspect of the present ice-on-coil (IOC) thermal storage coil system and method is that, in some embodiments, the ice-coil tubes are never horizontal anywhere in the full coil height, but instead vertical tubes or "near-horizontal" sloped tubes are utilized which slope in an upward direction to facilitate air removal during filling of the coil with the coolant mixture.