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.
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.
From a missing pipe hanger three floors down to steam traps past their prime, these stories show how steam system problems can originate inside the boiler room or far beyond it. Read more in February issue.