Greenheck’s new Model APD plenum fan features a direct drive fan with the wheel connected to the motor shaft. With no fan shaft bearings or belts to maintain, the company says its Model APD eliminates the cost and maintenance associated with traditional belt drive plenum fans.
Marley Engineered Products introduced its Artisan SmartSeries® Architectural Digital Wall Heater. The new wall heater automatically adjusts wattage output and blower speed resulting in quiet operation and energy efficiencies. The unit features 5 day/2 day programmability with four daily program periods to respond to a variety of environment needs.
Flaretite’s new bonnet seal fits all standard ¼ in flared SAE fill connections. The company says these seals make any fill connection fitting permanently leak-free, and still allow serviceability should the connection require servicing.
Retrieving every last bit of performance from the system while stopping short of the surge line is no small feat. Dig into sizing, tower selection, chilled water loads and stability, and condenser water management to leave no efficiency stone unturned. Read more in April issue