In the HVAC market, the term “EC motor” is commonly understood to mean a specific type of motor, which many users associate with compact construction and high efficiency. EC motors are based on the idea of using electronic commutation (EC) instead of conventional carbon…
Simply stated, a machine train is when three or more machine components are coupled together, acting as one. Machine train alignment can sometimes be a complicated task. Some laser alignment tools can measure machine trains of up…
Variable torque applications often involve pumps and fans. However, a distinction has to be made in the case of pumps. Although the most popular types of centrifugal pump have a quadratic torque (variable torque) characteristic, eccentric, vacuum or positive displacement…
There are times when it makes sound financial sense to get the speed controller closer to the motor. This is particularly the case with installations of multiple smaller drives, especially on conveyor applications in, for example, the food and beverage industries and materials…
Meeting future challenges will require the deployment of existing, proven technologies — and a holistic approach to buildings. While energy efficiency remains at the forefront of trends impacting the HVACR industry, it’s not only efficiency that the…
