The APR Control provides full-capacity modulation for direct-expansion (DX) air conditioning systems. The unit controls temperature and humidity to maximize comfort and eliminate excessive compressor cycling. The device's patented desuperheating chamber modulates the A/C system's capacity by varying refrigerant flow according to suction pressure, which changes with the temperature of air crossing the evaporator coil.

Rawal Devices Inc., 128 F New Boston St., Woburn, MA 01888; 800-727-6447; 781-933-3306 (fax);;

Publication date: 12/19/2005