Greenheck’s line of Vari-Green™ energy control products has expanded with the introduction of the Vari-Green Drive (Model VGD-100), a factory-mounted and wired variable speed control for three-phase motors up to 10 hp.
Nidec Motor Corporation (NMC) has launched a new family of variable speed products, which the company says offers product compatibility for a true system solution. With NMC’s ACCU-Series™ product line, customers can match a U.S. MOTORS® brand inverter duty motor with an NMC drive or panel or purchase integrated motors and controls. These products are solution driven and are designed to be used together as a system.
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.
NORD Gear Corp. has introduced the SK135E/SK175E soft start drive family, which the company says eliminates uncontrolled starting and mechanical strain on drive components. The starters are designed to be used in a distributed control system and can be mounted directly on the motor or near the motor
In an effort to help businesses increase efficiency and lower costs, Airxchange says it is making the SyMAX Permanent Magnet AC (PMAC) Motor available on most of its existing energy recovery wheels and all models in the new Expanded Capacity line (15,000 thru 60,000 cfm).
Ziehl-Abegg has added a new motor size to its line of motors, allowing the company to offer a new fan that is quieter, more efficient, with improved aerodynamics. This completion of its product range of energy-saving EC motors accompanies the introduction of new impellers.
Groschopp, Inc. introduced a Brushless DC Motor and Control package. Groschopp’s family of brushless DC motors and gearmotors have been tested for pairings with the brushless DC control product line giving engineers a brushless DC motor and control package designed for optimal operation.
Continental Fan’s new EC Motorized Impellers combine the efficiency of a backward curved impeller with the advanced technology of an electronically commutated (EC) external rotor motor. According to the company, the reduced power consumption of the high efficiency motor directly translates to savings.
Baldor Electric Company says it has introduced a new adjustable speed direct drive cooling tower system that improves reliability, reduces maintenance, runs quieter, and saves energy. By combining the technologies of the laminated finned frame Baldor-Reliance® RPM AC motor with a high-performance permanent magnet rotor design, this power-dense motor and power-matched adjustable speed drive replaces the right-angle gearbox and jack shaft installation found in many conventional industrial process cooling towers.
Leaning on experience and data from various K-12 cities and projects, the author pursues some less conventional design approaches. They may revolve around radiant heating and/or cooling, but depending on school size and other factors, the smart use of heat recovery, DOAS, and improved central plants could also put a project on the HVAC honor roll.