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Greenheck’s New Vari-Green® Hand/Off/Auto (HOA) Control Simplifies System Integration

The Hand/Off/Auto (HOA) control is the latest addition to Greenheck’s line of Vari-Green® controls that optimize ventilation system efficiency. The compact HOA control can replace a Vari-Green transformer and provide a 24V power source from existing line voltage at the fan. The fan can be enabled by using a dry contact closure or by providing a voltage (12-120V) allowing the control to easily integrate the fan into a variety of systems. With only three buttons… Read More

Greenheck Introduces the RV-10 Rooftop Ventilation Unit

Model RV-10 is the latest addition to Greenheck’s line of rooftop ventilation equipment for both partial recirculation and 100% outside air systems. Ideal for applications requiring a lower CFM range and a smaller footprint, model RV-10 offers airflows from 500 to 2,500 cfm, 3 to 7 tons of packaged DX cooling, and 75 to 200 mbh of indirect gas-fired heating. An electric heat option is also available. RV-10 Rooftop Ventilation Unit Featuring two-inch double-wall construction… Read More

Greenheck Offers Rectangular Bubble-Tight Damper in Larger Sizes

Greenheck’s HBT-221 rectangular bubble-tight damper is now available in larger sizes up to 48 in. x 52 in. in a single section. This allows larger openings to be filled with one pre-engineered damper to provide zero leakage rather than a multi-section assembly that can add a significant amount of pressure to the system. In addition, larger-size HBT-221 dampers can be configured with a single actuator versus two actuators found in a multi-section damper assembly. Heavy-duty… Read More

Greenheck HVLS Fans Now Available with Air Cleaning Technology

Greenheck high volume low speed (HVLS) fans can now be specified with electronic air cleaning technology. A needlepoint bipolar ionization (NPBI®) accessory is available on all models of Greenheck HVLS fans. The NPBI® accessory, designed to be installed on the ceiling near the HVLS fan, includes a universal mounting kit for easy installation. The accessory is also self-cleaning for low maintenance. The needlepoint bipolar ionization system meets UL-867 and UL-2998 standards for ozone-free operation. Licensed… Read More

Greenheck Expands Dedicated Outdoor Air Systems Line

Greenheck’s line of Dedicated Outdoor Air Systems (DOAS) for high percentage and 100% outside air continues to grow with the addition of two new models. Pre-engineered rooftop ventilator models RV-75 and RVE-150 with energy recovery offer capacities up to 16,000 cfm, up to 50 tons of packaged cooling, and up to 1200 mbh of indirect gas-fired heating. Featuring two-inch double-wall construction and R13 thermally broken foam insulation,both models include a top-mounted condenser and an upgraded… Read More

New Mixed Flow Square Inline Fans from Greenheck

Greenheck direct drive square inline fans now incorporate mixed flow wheel technology for a unique combination of high efficiency, low sound and ease of installation in a square housing design. AMCA certified for sound and air performance, mixed flow model SQ is available in eight sizes, 16-33, with performance ranges up to 27,497 cfm and up to 3 in. wg. Model SQ is available with a single-phase or three-phase direct drive Vari-Green® motor up to… Read More