Nidec Motor Corporation (NMC) has launched the U.S. MOTORS® brand 3-10 hp electronically commutated (EC) motor with an IE4 (Super Premium efficiency) rating integrated with a tuned VFD. The product is available for variable torque pumps, fans, blowers, farm vents, and hydronic pumps. This motor is a member of the ACCU-SERIES line of variable speed products.
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.