The device can be built into new air conditioning units or retrofitted to existing units. Rawal wanted an independent test to verify both effectiveness and energy savings resulting from the use of the device and sent one of them to the Air Conditioning, Heating, and Refrigeration Technology Center at the Oak Ridge Centers for Manufacturing Technology (ORCMT) for testing.  The device functions like a cruise control on an automobile and automatically varies the btu capacity of the system by changing the kilo-watt input to the compressor to match changing load. At the same time, the APR control holds the thermostat setting, resulting in constant temperature and stablilized relative humidity in the area being air conditioned.

Rawal said his company plans to built a second production facility and could add as many as 10 jobs in 1998.  He estimated that confirmation of energy savings has expanded his mark by tenfold and could see sales increases of up to $500,000 in 1997 and perhaps $2 million in 1998.  "Every owner of a unit air conditioner (an estimated 60 million existing and six million new units each year) is a potential customer,"  he said.  He rated the technical assistance from ORCMT as excellent.