RANDOLPH, N.J. — Zonefirst, a manufacturer of HVAC zoning equipment, has launched new products designed to meet A2L refrigerant regulations. As the HVAC industry transitions towards more ...
Greenheck has introduced a round industrial control HVAC damper to accommodate higher velocities and pressure. Model HCDR-450 is rated for velocities up to 7000 fpm and pressure up to 30 in. wg, and ...
THIS column provides information about the use of outdoor air dampers in hot and humid climates and during hot and humid seasons in temperate climates in commercial buildings. Terms used in this ...
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