SWEP reports that it is the first company to provide Brazed Plate Heat Exchangers (BPHEs) certified by the Air-Conditioning, Heating, and Refrigeration Institute (AHRI). Testing performed by their contracted laboratories verify that product performance is according to specified ratings. This offers additional security when selecting BPHEs for HVAC installations.
The Grundfos PACO-brand LCS split-coupled end suction pumps are now available for sale in the United States. According to the company, LCS is ideally suited for liquid transfer in chilled water, condenser water, pressure boosting, district heating and cooling, and air-conditioning applications. Its compact design provides hydraulic performance equal to that of a frame-mounted, long-coupled design with the added benefits of a smaller footprint.
Extech’s new RD300 detects all existing refrigerants used in various air-conditioning, cooling, and refrigeration systems. Designed to increase reliability in the field, the replaceable sensor tip has a built-in LED light with on/off switch to provide illumination in dimly lit areas.
Leaning on experience and data from various K-12 cities and projects, the author pursues some less conventional design approaches. They may revolve around radiant heating and/or cooling, but depending on school size and other factors, the smart use of heat recovery, DOAS, and improved central plants could also put a project on the HVAC honor roll.