Taco’s now-expanded ECM, wet rotor Viridian line includes the VR3452 high-efficiency wet rotor variable speed circulator for chilled and hot water applications, offering up to 34 ft of shut-off head and 52 gpm flow.
B&K Precision launched its latest multi-range DC power supply, the model 9111, expanding its 9110 multi-range supply offering. With constant voltage (CV) and constant current (CC) modes, the 9111 automatically recalculates voltage and current limits for each setting to deliver any combination of its 60 V/8 A output range within 180 W. The new DC power supply is suitable for a wide variety of uses in electronics manufacturing, service and repair, and engineering labs.
A selection of Vari-Green® controls is available from Greenheck. The controls maximize the energy efficiency of ventilation systems in a variety of applications when used in conjunction with Greenheck’s Vari-Green motor.
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