1. [PDF] R-22 Replacements Pressure-Temperature GuideR-22 Replacements Pressure-Temperature Guide. Key: Green (in of Hg) = Vacuum. Black (psig) = Saturated Vapor (calculate Superheat). Free Download › 2. [PDF] Pressure-Temperature Guide for A/C - OpteonPressure-Temperature Guide for A/C. Key: Green (in of Hg) = Vacuum. Black ... NU-22B™. (R-422B). Freon™. 22. (R-22). R-32 psig. A2L psig. -50. 0.07 -0.03 -0.51 ... Free Download › 3. [PDF] Pressure Temperature Chart - Chiller CitySelect design temperature for your evaporator and condenser-. Match to approx. operational pressures. NU-22 - 120° condensing / 40° evaporator approx. 234 psig ... Free Download › 4. [PDF] R-422BPRESSURE-TEMPERATURE CHART. National R-422B. TEMP (˚F). Liquid (psig) Vapor (psig). -40. 0.9. 2.7”. -35. 3.0. 0.9”. -30. 5.4. 1.1. -25. 7.9. 3.2. -20. 10.7. 5.7. Free Download › 5. [PDF] Freon™ MO99™ (R-438A) and Freon™ NU-22B™ (R-422B)See the pressure-temperature charts in this bulletin to compare pressures and temperat...