Widely used method for air conditioning and also used in domestic and commercial refrigeration. Application of a constant torque type with long running hours often at high speeds with speed control. It is an ideal opportunity for efficiency improvement and power consumption reduction.
The HVAC/R sector represents a substantial part of the electrical consumption of electric motors worldwide. Due to the high share of the global electrical consumption, these applications are under strong focus of world governments for setting efficiency standards for motors only and then for the whole machine (pump or fan plus motor and drive systems).