Boreal ® Heat Pumps
features
Electronically Commutated Motor (ECM)
What is an Electronically Commutated Motor (ECM)
?
The GE ECM™ is a brushless-DC motor with all of
its speed and torque controls built in. The ECM has all the efficiency and
speed control advantages of a DC motor with none of the disadvantages, such
as carbon brush wear, short life, and noise. The ECM uses 1-phase AC input
power and converts it into 3-phase operation. 3-phase motors have superior
efficiency and reduced noise to single phase motors. The ECM uses GE patented
back EMF sensing to determine rotor position and perform the commutation
function. The motor utilizes a permanent magnet rotor resulting in near
zero rotor losses. The rotor is connected to the shaft though resilient
rings to absorb high frequency torque ripple.
The new family of ECM 2.3 motors is a continuation of
the 2.0 product with improvements in moisture resistance and line transient
suppression. The product serves the indoor blower market for almost all
residential HVAC systems and many commercial air distribution systems. Their
wide speed range, high efficiency and programmability give them a virtually
unlimited range of performance characteristics, which results in a highly
reliable, field-proven, convenient package.
