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Commercial Refrigeration Evaporator Fan Motor

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Work Products

UES Measures Standard protocols list Demand Response Technologies Supporting Documents Propose a measure or standard protocol Proposed measures and status Whole Building Efforts

Subcommittees

AgriculturalBehaviorCommercial and Industrial (non-HVAC and WH)Commercial HVAC and Water HeatingConnected ThermostatsDemand ResponseDistribution EfficiencyGuidelinesImplementersModelingNatural GasNew HomesNon-Residential LightingOperationsRefrigerationResearch and EvaluationResidential AppliancesResidential HVAC and Water HeatingSmall and Rural UtilitiesWeatherizationWhole Building
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UES Measure

  • Commercial Refrigeration Evaporator Fan Motor

Commercial Refrigeration Evaporator Fan Motor

At a Glance

Category 
proven
Status 
active
Fuel type 
electric
Sector 
commercial
Applications 
Grocery
Sunset date 
Apr 30, 2031

Evaporator fans circulate cold air near the evaporator coil around the refrigerated case and run almost 24/7. The input energy to these fans ultimately becomes heat that the refrigerator system has to remove. Typically fan display case motors provide 6 to 19 W of output power, and walk-in fan motors provide 20 to 55 W of power. ECMs and PMSMs can provide this output power more efficiently that shaded pole or PSC motors. This measure calculates motor savings separately for a functioning or a burned-out motor replacement. Pre-conditions case for functioning motors can be either shaded pole or PSC motor; current practice case for burned-out motors consists of a blend of shaded pole, PSC and EC motors which varies based on motor size. ECM replacement current practice in 2026 is assumed to vary from 40 to 70% depending on motor size.

Workbook

Latest Version

Commercial Refrigeration Evaporator Fan Motor v1.1

File Commercial Refrigeration Evaporator Fan Motor v1.1
Approved at the April 2026 RTF meeting. Undergoing QA.
Date 
Apr 28, 2026
Version number 
1.1

Decisions

Expand All Decisions

Latest decision

Decision details

Decided 
April 21, 2026
RTF Meeting

Create New Measure

Decision Details

Combine the Display Case Evaporator Fan Motor Retrofit UES and the Walk-in Evaporator Fan Motor Retrofit UES into the Commercial Refrigeration Evaporator Fan Motor UES and update the measure as presented, and:
Add an upgrade option using the same current practice baseline as the pre-condition measure's second period
Set the Category at Proven
Set the Status at Active
Set the sunset date to April 30 2031 

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