Morrill Electronically Commutated Motors (ECMs) represent the next generation of commercial refrigeration motor technology. Combining the unmatched efficiency of permanent magnets, the reliability of brushless-dc motor design, and the advanced features of programmable controls, ECM has redefined industry expectations for motor performance.
Using the same field-proven vvariable-speed technologies that have revolutionized the residential HVAC industry over the last 22 years, ECM commercial refrigeration motors offer up to 70% greater efficiency than is possible with older equipment. The technology is so efficient that, for every 100 stores that are retrofitted with ECM, enough power is saved to shut down a one-Megawatt power plant.
Aside from the cost of keeping products on the shelves, energy consumption is the single largest expense for any business in the foodservice industry. With the vast majority of restaurants, convenience stores, and grocery markets using reach-in coolers, refrigerators, freezers, vending machines and display cases with inefficient shaded-pole motors, 41% of these businesses' electric bills (external link) come from operating commercial refrigeration equipment.
Unlike conventional motors, ECM motors have built-in microprocessors that allow manufacturers to create versatile, efficient products with a host of unprecedented benefits. For example, motor controls can automatically adjust torque to maintain the fan speed set point regardless of external static pressure.
Constant speed means consistent case temperatures, which is crucial to the preservation of perishable goods. With the ECM 58mm, technicians can even create programming modifications while in the field, allowing for perfectly customized installations and less inventory for contractors to manage.
With backing from years of development, millions of installations, and recommendations from dealers, distributors, and appliance manufacturers, Morrill ECMs have a time-tested, field-proven record that customers across the HVAC industry have come to depend on. ECM motors are able to stand up to over 180 hours of chemical-spray testing and wide-ranging power irregularities, thanks to robust components and moisture-resistant interior coatings.
In the end, it’s easy to see why customers are insisting on the superiority of Morrill Motors – for better performance and bigger profits, there is just no substitute for the faster payback, programmable features, and proven reliability of ECM commercial refrigeration motors.