Rosenberg’s new trestle-design GKHB 5.5kW backward curved fan module combines an electronically commutated (EC) motor with the high-efficiency Rosenberg B-Wheel impeller greater efficiency and easy installation. The new B-Wheel Trestle Module features a standard flexible duct connection.
Rosenberg introduced its new electronically commutated Unobox fans for data center cooling retrofits. The company has now expanded the Unobox line to include standard AC models for use in harsh environments or where variable frequency drives are already employed.
Many engineers tend to avoid or delegate the nitty gritty of a ground source heat pump system, from soil moisture effects to building system (im) balance. It's time for designers to get in the loop. Learn more about Grounded In Reality in the December issue. Other topics in the December issue include health care HVAC, Boilders, check out the Back2Basics, and more.