Armstrong Fluid Technology has announced two new enhancements to its Astro wet-rotor circulators, which the company says includes a larger wiring box for easier access and faster wiring on the 220, 225, 230, and 250 Series circulators.
Titus HVAC introduced the RevolutionTFX air-handling unit. The company says the air handler expands the contractor’s ability to meet the wide range of retrofit challenges present in office, government, and educational projects.
Pottorff has announced the addition of the ECV-645-MD 6-in deep, vertical blade louver to its Miami-Dade approved product line-up. The ECV-645-MD is AMCA rated for Air Performance and Wind-Driven Rain and is approved by the Florida Building Code.
Johnson Controls continues to expand its York magnetic-bearing centrifugal chillers (YMC2) offering with new, low-range capacities that extend to 165 tons/580 kW. With the addition of these lower capacities, the complete range of the YMC2 encompasses units from 165–600 tons (580kW to 2,110 kW).
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.
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.