Display Case Energy Standards
If you are involved with refrigerated display cases you might have heard about a new bill before congress called the BURR Act or Better Use of Refrigerator Regulations # H.R. 5710. This would amend the EPACT 2005, DOE 10 CFR 431 for the portions pertaining to self-contained, medium temperature, service over counter display cases. This equipment is now classified as a reach-in refrigerator per the DOE 2010 portion of the energy standards. But because this style of case is all glass and uses a lot of lighting for display of product it has a large heat load as compared to a reach-in, and cannot meet the standards.
If this bill passes the service over counter (SOC) will have its own class and the energy calculation will be based on TDA (total display area) like all the cases covered by DOE 2012 which included SOC remote and ice cream cases. What this means is that the SOC.SC.M cases will now have a chance at meeting the energy standards.
Energy standards have been in place for reach-in refrigerators for many years, including federal minimum efficiency levels which are now in effect. They were mandated by the Energy Policy Act of 2005 and manufacturers responded. Since OEMs had already been working on ENERGY STAR models from 2001, it was not a stretch to hit the federal minimum.
The Air Conditioning, Heating & Refrigeration NEWS recently reported on this legislation.
Again, depending on the class of equipment, the calculations defined in the energy standards might be based on refrigerated volume, or could be based on total display area. This is true for ENERGY STAR and other calculations as well, so be aware of what class of equipment is being considered because allowable energy consumption can vary greatly.
Rajan Rajendran, Ph.D
Vice President, Engineering Services and Sustainability
Emerson Climate Technologies