Display Cases Attain 17% Energy Savings Using R-441A Refrigerant vs. Propane
Offers a quicker pull-down time compared to other refrigerants
KANEOHE, Hawaii — MTL Cool, a Quebec, Canada-based manufacturer of refrigerated display cases, has introduced a new line of energy-efficient units that run on U.S. Environmental protection Agency (EPA)-approved HCR188C/R-441A, a multi-blend hydrocarbon refrigerant that is ASHRAE-classified and ETL safety-listed. The company said the new line offers improved efficiency compared to units running on either R-134a or R-290 (propane), with test data showing that the first of this line, the new NRC2 system, runs on a 17 percent lower charge and requires 17 percent less energy compared to units running on R-290. (Test specifications: ambient temperature 75°F, relative humidity 45 percent, interior temperature brought down to 38°.)
• Running with R-134a, the unit required 10.5 ounces and pulled 443 watts at 5.25 amps.