Carrier’s newly expanded AquaEdge 19XR centrifugal chiller line is now commercially available up to 3,000 tons. The line, which was introduced in early 2014 to serve large buildings and process applications, is now available from 800 to 3,000 tons.
Continental Fan has introduced the new DXG & DXP AC Motorized Axials. The coupling of the motor and impeller minimizes space requirements and provides for vibration free operation. Both motor and impeller are located directly in the air stream, providing excellent heat dissipation and efficient motor cooling, according to the company.
Greenheck has expanded its line of mixed flow inline fans with the addition of Model EQB. According to Greenheck, the fan combines the best properties of centrifugal and vane axial fans while providing higher efficiency and lower sound levels. Model EQB’s octagonal housing is manufactured of formed galvanized steel panels coupled with a heavy-gauge steel drive frame for and durability.
Wilo USA has introduced its new Stainless Steel Closed Coupled (BLZ) centrifugal pumps. The pumps are base-mounted featuring end suction-centerline discharge design, compact design, a foot-mounted volute, and permanently lubricated ball bearings. BLZ series pumps, which are suitable and approved for pumping clean, potable water, are easy to install, operate, and service, according to Wilo reps.
Carrier has expanded its Evergreen® 19XR, XRV line of centrifugal chillers to include two-stage compression technology, providing building owners the choice of one or two stages to best tailor the solution to each unique site.
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.