Foster Transformer says its new lineup of high efficiency isolation transformers provide a higher degree of isolation (as measured by leakage current to ground), improved efficiency, and reduced size and weight, which yield lower operating costs.
Greenheck’s new Model AFJ-601D stationary acoustic louver is Florida Building Code approved and Miami-Dade qualified for use in the Wind-Borne Debris Zone. Featuring a 6-in deep J blade, the AFJ-601D is designed to restrict the transmission of high and low frequency sounds generated by mechanical equipment and to act as an exterior weather louver.
The new SU 200 M miniature circuit breaker (MCB) from ABB offers an extended rating of 40 amps at 277Y/480 volts AC to protect larger loads, a dual AC/DC rating to reduce the number of SKUs required for inventory, and a more durable housing to help prevent damage during shipping and handling.
Webster Combustion Technology LLC announced the expansion of the Temp-A-Trim™ system, the patented control system designed to deliver fuel savings of up to 3% and electrical savings of up to 30%. The Temp-A-Trim is now available on new or installed commercial and industrial boiler burners of any brand.
Sensaphone® has introduced a cellular version of its Sentinel™ system that provides 24/7 monitoring of unattended equipment and remote locations where Internet or Ethernet connectivity is unavailable. When the Sentinel system detects a problem such as leaks, temperature changes and power outages, it immediately sends alerts by phone, text, or email over standard cellular networks provided by AT&T or Verizon.
Rotobrush® International LLC has launched the BrushBeast, which was designed with a 90% increase in vacuum power. The company said that the BrushBeast allows for easy maneuvering into tight areas such as attics and crawl spaces.
Designed with 4-in flanged ports and only three moving parts, Tri-Rotor’s 200 Series pumps are heavy-duty, low-maintenance workhorses for pumping liquid and semi-solid materials with viscosities from 40/4 to 100,000/21625. Flow rates range from 58 to 240 gpm (200 gpm at 430 rpm). The 200 Series includes three head types: variable volume, relief valve, and transfer.
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.