A composite foam insulation panel being developed by Oak Ridge National Laboratory and partners could reduce wall-generated heating and cooling loads in buildings by 38 to 50 percent, potentially saving homeowners $150 or more per year.

According to the experts, the most common mistake made by designers and installers is failing to calculate the correct heat load. 

The AT/ATR-LS current transducer combines a current transformer and signal conditioner that is great for monitoring large loads. The AT/ATR-LS is easy to install due to a large, split-core design. 

ACCA has recognized Avenir Software’s HeatCAD® (for residential heating and cooling load calculations) and LoopCAD® (for radiant and snow melt system designs) as “Powered by Manual J®.” This is the sixth software provider to earn this designation from ACCA for its product offerings.

APR Control provides part-load control for direct expansion air conditioning systems, reducing short cycling conditions and risks of coil frosting and liquid slugging. By modulating system capacity, the APR Control extends runtimes to improve humidity control and stabilize temperatures.

The Air Conditioning Contractors of America Educational Institute (ACCA-EI) Standards Task Team (STT) has announced an American National Standards Institute (ANSI) public review period for “BSR/ACCA 1 Manual D - 201x, Residential Duct Systems” as a revised and redesignated industry standard.