Chilled water is usually delivered by HydroMiser Ice Storage Chillers at 35 to 40ºF temperature, but can be adjusted upwards - between 40º and 100ºF - using the Applied Thermal Technologies Auto Temp Control circuit option. Auto Temp Control is available exclusively from Applied Thermal, and provides the benefits of thermostat type temperature control - without sacrificing the operational advantages and power cost savings of the basic ice storage feature.

Dual-mode operation: HydroMiser Ice Storage Chillers differ from other cooling equipment, such as cooling towers and conventional chillers, because of their dual-mode operating capabilities. During the user's normal facility work hours, the HydroMiser Ice Storage Chiller's refrigeration compressors operate as needed to meet cooling demand, like other types of chillers. Then, at night and other periods of plant down-time, they keep functioning in their "ice-building" mode. Over half of the water in a HydroMiser Ice Storage Chiller's large storage tank is converted to ice and deposited on a group of parallel, fast-chilling plates.

Why build ice? At 32ºF, the freezing temperature of water, a pound of ice will absorb 144 times as much heat or thermal energy (BTUs) as a pound of water. This means much more cooling energy can be stored in ice, for any given tank size, than in plain water stored at 40º or 45ºF. Since HydroMiser Ice Storage Chillers build and store most of their extra cooling energy when the user's facility is closed, and then operate like other chillers during facility working hours, the HydroMiser supplies much more chilling capaciity or "tons" of refrigeration from the same size/horsepower rating of compressor(s) than a conventional type of chiller. Also, as most or all the ice-building process occurs during off-peak power hours - when electrical rates and demand/service charges are at the lowest level - operating costs for HydroMiser Ice Storage Chilling Systems are very economical.

More on Ice Chillers:
Overview & Photos
Ice Chiller Components