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Modern Parallels to July 1929, with Rob McManamy
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Makeup-air units
Heat-only direct-fired and indirect-fired makeup-air units are designed for commercial or industrial facilities where high outdoor-air volumes are needed but cooling and humidity control are not required. Direct-gas models are available in horizontal- or vertical-discharge configurations. Indirect gas models are available with horizontal or vertical discharge and can be configured for 100-percent outside air or with recirculation. —Valent
Variable-air systems
EarthWise intelligent variable-air systems are well-suited for commercial office spaces, schools, and higher-education facilities. The systems incorporate Trane Wireless Comm technology, which eliminates wiring between equipment, system controllers, and temperature sensors. The system can be viewed on the Tracer building-automation-system operator suite application, allowing customers to monitor the system, make setpoint changes, view dashboard graphics, and more. —Trane
Updated air-curtain line
Kitchen ventilation systems
Self-sensing pumps
Ductless air conditioners and heat pumps
Coleman ductless air conditioners and heat pumps are well-suited for computer server rooms where temperatures must be maintained even when other parts of the building are not being cooled. Advanced compressor technology modulates the system to a minimum of 15 Hz and a maximum of 120 Hz, using only the electricity needed to deliver the proper amount of cooling or heating for optimum comfort and energy savings. An advanced multi-part filter system accessory uses a catechin material and treated fibers to remove contaminants and improve indoor-air quality. —Johnson Controls
Packaged classroom ventilation