Heating, ventilation, and air conditioning are critical to comfort and health in colleges, office buildings, and hospitals. AEGIS®️ Shaft Grounding Rings ensure the long-term reliability of the VFD-driven motors that keep HVAC systems running.
VFDs reduce energy consumption by allowing motors to run at less than full speed. When used to control air conditioning, air handling, or pump motors, VFDs can yield energy savings of 20 ~ 30% or more.
But VFDs can also damage the motors they control.
They induce voltage on motor shafts that can discharge through the bearings, causing pitting, fluting, and eventual failure. Without bearing protection, any savings from the use of VFDs can be quickly wiped out by the cost of replacing motors and by system downtime. To make HVAC systems sustainable as well as energy-efficient, a reliable method of bearing protection is required.
AEGIS®️ Rings are widely installed on HVAC motors to prevent bearing damage caused by shaft voltage discharge. See how maintenance departments, motor repair shops, and operations managers solved their bearing troubles in these facilities: