Hazloc Heaters™, a manufacturer of industrial unit heaters for hazardous and severe-duty locations, introduced the second generation of the Hydronic High Performance (HHP2) series of heat-exchanger unit heaters. The HHP2 series of heat-exchanger unit heaters is designed for rugged industrial applications in steam, hot water, glycol, or other fluid circulating heating systems.
Greenheck’s new Utility Set Fan (USF) Series offers multiple levels of construction to meet a wide range of commercial and industrial applications. Constructed from galvanized steel with a bolted frame, USF-200 utilizes a backward inclined centrifugal wheel and is ideal for Class I airflow and pressure applications where clean air is being exhausted. USF-200 capacities range from 50 to 13,700 cfm and up to 5.0 in. wg.
Greenheck’s industrial dampers are heavy-duty, flanged-style frame dampers with various blade styles and pressure classes designed to control airflow and provide shut-off in HVAC and industrial process control systems.
The ABB Low Voltage Products division is offering a new line of heavy duty safety switches for commercial and industrial applications, meeting the necessary UL98, CSA, and NEMA KS-1 standards. The 600V and 200kA rated switches use the same globally rated bodies as ABB’s rotary-style switches, providing increased performance, reliability, and safety to the heavy duty market segment, according to ABB.
Bitzer is now offering a range of compressor units for use with the natural refrigerant ammonia (R717). The Bitzer ammonia compressor packs (ACP) are available with a capacity range of 100 to 450 TR. The modular compressor units comprise up to three compressors. For higher capacities, as many as three compressor packs can be connected (up to 9 compressors) and connected to a single controller, increasing the overall capacity up to 1,200 TR. The company says this is ideal for industrial systems.
Berner International Corp. has introduced the HL Series line of air curtains designed for hazardous industrial environments. The HL Series is designed for petroleum refineries, food processing and pharmaceutical plants, chemical facilities as well as compressed natural gas (CNG) bus garages.
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.