
Anti-Sweat Heater Door Control (ASH-DC)
ASH-DC was developed to remedy a basic design flaw in glass cooler and freezer doors such as those in convenience stores, liquor stores and grocery stores. These doors have heaters on them that run 24 hours a day to ensure that the glass remains free of frost and condensation. The reality is that these heaters do not need to run constantly, and a lot of energy is being wasted.
ASH-DC retrofits to the door system (typically a group of four doors) and utilizes a digital moisture sensor to activate the anti-sweat heaters only when the threat of moisture is present.
ASH-DC also utilizes a Programmed Maintenance Cycle that activates the heaters on regular intervals — 15 minutes every three hours — to ensure that all parts of the cooler or freezer system remain frost free.
The maintenance cycle has been engineered with “random start” technology, so the heater will cycle at different times on different cases, even if there is a loss of power.
All of this translates into energy savings of 80%-85% or approximately $1,000 per door set per year. ASH-DC is simple to install, requires no maintenance, has a three-year warranty and a typical 12-month ROI.
- Applies to glass door sets of coolers and freezers
- Retrofits to existing system
- Provides more efficient use of door heater systems
- Sensor-based technology reads moisture levels and controls heaters accordingly
- Eliminates unnecessary heater run time and energy use
- Reduces energy consumption 80%-85% on average
- Approximately $1,000 per year in savings
- No additional maintenance required
- Three-year warranty
- 12-month ROI or lease option

