1 NU-22 b . System Requirements Physical Properties 1. System must be designed for Molecular Weight @ 1 atm. g/mol use with R-22, R-417A or Bubble Point @ 1 atm. F ( C). R-407C, free of leaks and in Dew Point F ( C). sound operating condition. Critical Temperature F ( C). 2. NU-22B (R422B) is designed for use in Critical Pressure psia systems utilizing direct expan- Boiling Point F ( C). sion metering, TXV, orifice, Density of Liquid @ 25 C lb/cf Density (Saturated Vapor) @ NBP .2959 lb/cf cap tube. Before using NU-22B. Heat of Vaporization @ NBP btu/lb (R422B) in a flooded system contact TECH 2 TECH at 866-433-8324 ASHRAE Standard 34 Designation R-422B. 3. The system should be operating ASHRAE Standard 34 A1.
2 Safety Designation within its design capacity. Max. Exposure Limits 1000 ppm Recommended Converting to NU-22B (R422B) will not Ozone Depletion Potential Relative to CFC 11 = 0. increase system capacity. Global Warming Potential 2080. Consult TECH 2 TECH at 866-433-8324. before converting any system with Manufacturing Specification Max. Moisture vol pre-existing capacity problems. Max. Noncondensable vol 4. The system should be charged Max. High Boiling Impurities vol with the proper type and amount of lubricant, as required Components: by the original equipment and Pentafluoroethane CAS 354-33-6 CF3 CHF2. component manufacturer. 1,1,1,2 tetrafluoroethane CAS 811-97-2 CF3CH 2F.
3 Iso-butane CAS 75-28-5 C4H10. NU-22B (R422B) IS ANOTHER. QUALITY PRODUCT FROM THE. DISTRIBUTORS OF HOT SHOT Operational Pressures Comparison - PSIG. (R414B) & ONE SHOT (R422C). 300. ARI 210/240-2005. 250 Test `A` Cooling Steady State 200. 80 DB/67 WB entering air 95 DB/75 WB outdoor air Distributed By: 150. 100. 50 95 outdoor air 80 return air 0. NU-22B. R-22. Equipment - York Mod. #E1RD036506A. NU-22 Unitary Heat Pump 95 outdoor air R-22 13 SEER. R-407C. 80 return air NO ALTERATIONS. Testing performed by ETL Semko, Columbus, OH. Tech 2 Tech Refrigerant Related Diagnostic Support 866-433-8324. Making Your Life Easier!