HVAC Tools/R-410A PT Chart
ASHRAE A1·NEAR-AZEOTROPIC

R-410A Pressure-Temperature Chart

R-32 / R-125 (50% / 50% by mass). Standard saturation pressures across evaporator, suction, and condensing temperatures.

Superheat / Subcooling Calculator
Single Saturation Curve

R-410A is a near-azeotropic blend with negligible glide (< 0.3 °F / 0.15 °C). A single saturation pressure column is standard for field service, charging, and SH/SC calculations.

Sea-Level Pressure Standard

psig = psia − 14.696 (standard atmospheric pressure at sea level). At higher elevations, adjust gauge manifold readings accordingly.

Reference only. Follow the equipment manufacturer's charging instructions and data plate.
Temp:
Pressure:
Temperature (°F)Saturation Pressure (psig)Bubble & Dew points are identical
-40 °F10.8 psig
-39 °F11.4 psig
-38 °F12.1 psig
-37 °F12.7 psig
-36 °F13.4 psig
-35 °F14.1 psig
-34 °F14.8 psig
-33 °F15.6 psig
-32 °F16.3 psig
-31 °F17.1 psig
-30 °F17.8 psig
-29 °F18.6 psig
-28 °F19.4 psig
-27 °F20.2 psig
-26 °F21.0 psig
-25 °F21.9 psig
-24 °F22.7 psig
-23 °F23.6 psig
-22 °F24.5 psig
-21 °F25.4 psig
-20 °F26.3 psig
-19 °F27.3 psig
-18 °F28.2 psig
-17 °F29.2 psig
-16 °F30.2 psig
-15 °F31.2 psig
-14 °F32.2 psig
-13 °F33.2 psig
-12 °F34.3 psig
-11 °F35.4 psig
-10 °F36.5 psig
-9 °F37.6 psig
-8 °F38.7 psig
-7 °F39.9 psig
-6 °F41.0 psig
-5 °F42.2 psig
-4 °F43.4 psig
-3 °F44.6 psig
-2 °F45.9 psig
-1 °F47.2 psig
0 °F48.4 psig
+1 °F49.7 psig
+2 °F51.1 psig
+3 °F52.4 psig
+4 °F53.8 psig
+5 °F55.2 psig
+6 °F56.6 psig
+7 °F58.0 psig
+8 °F59.5 psig
+9 °F60.9 psig
+10 °F62.4 psig
+11 °F63.9 psig
+12 °F65.5 psig
+13 °F67.1 psig
+14 °F68.6 psig
+15 °F70.3 psig
+16 °F71.9 psig
+17 °F73.5 psig
+18 °F75.2 psig
+19 °F76.9 psig
+20 °F78.7 psig
+21 °F80.4 psig
+22 °F82.2 psig
+23 °F84.0 psig
+24 °F85.8 psig
+25 °F87.7 psig
+26 °F89.6 psig
+27 °F91.5 psig
+28 °F93.4 psig
+29 °F95.4 psig
+30 °F97.4 psig
+31 °F99.4 psig
+32 °F32° Freezing101.4 psig
+33 °F103.5 psig
+34 °F105.6 psig
+35 °F107.7 psig
+36 °F109.9 psig
+37 °F112.1 psig
+38 °F114.3 psig
+39 °F116.5 psig
+40 °F40° Typical AC Evap118.8 psig
+41 °F121.1 psig
+42 °F123.4 psig
+43 °F125.8 psig
+44 °F128.2 psig
+45 °F130.6 psig
+46 °F133.0 psig
+47 °F135.5 psig
+48 °F138.0 psig
+49 °F140.6 psig
+50 °F143.1 psig
+51 °F145.8 psig
+52 °F148.4 psig
+53 °F151.1 psig
+54 °F153.8 psig
+55 °F156.5 psig
+56 °F159.3 psig
+57 °F162.1 psig
+58 °F164.9 psig
+59 °F167.8 psig
+60 °F170.7 psig
+61 °F173.7 psig
+62 °F176.6 psig
+63 °F179.6 psig
+64 °F182.7 psig
+65 °F185.8 psig
+66 °F188.9 psig
+67 °F192.0 psig
+68 °F195.2 psig
+69 °F198.5 psig
+70 °F201.7 psig
+71 °F205.0 psig
+72 °F208.4 psig
+73 °F211.8 psig
+74 °F215.2 psig
+75 °F218.6 psig
+76 °F222.1 psig
+77 °F225.7 psig
+78 °F229.2 psig
+79 °F232.9 psig
+80 °F236.5 psig
+81 °F240.2 psig
+82 °F243.9 psig
+83 °F247.7 psig
+84 °F251.5 psig
+85 °F255.4 psig
+86 °F259.3 psig
+87 °F263.2 psig
+88 °F267.2 psig
+89 °F271.3 psig
+90 °F275.3 psig
+91 °F279.5 psig
+92 °F283.6 psig
+93 °F287.8 psig
+94 °F292.1 psig
+95 °F296.4 psig
+96 °F300.7 psig
+97 °F305.1 psig
+98 °F309.5 psig
+99 °F314.0 psig
+100 °F100° Condenser318.5 psig
+101 °F323.1 psig
+102 °F327.7 psig
+103 °F332.4 psig
+104 °F337.1 psig
+105 °F341.9 psig
+106 °F346.7 psig
+107 °F351.6 psig
+108 °F356.5 psig
+109 °F361.4 psig
+110 °F366.5 psig
+111 °F371.5 psig
+112 °F376.6 psig
+113 °F381.8 psig
+114 °F387.0 psig
+115 °F392.3 psig
+116 °F397.6 psig
+117 °F403.0 psig
+118 °F408.4 psig
+119 °F413.9 psig
+120 °F419.5 psig
+121 °F425.1 psig
+122 °F430.7 psig
+123 °F436.4 psig
+124 °F442.2 psig
+125 °F448.0 psig
+126 °F453.9 psig
+127 °F459.9 psig
+128 °F465.9 psig
+129 °F471.9 psig
+130 °F478.0 psig
+131 °F484.2 psig
+132 °F490.5 psig
+133 °F496.8 psig
+134 °F503.1 psig
+135 °F509.5 psig
+136 °F516.0 psig
+137 °F522.6 psig
+138 °F529.2 psig
+139 °F535.9 psig
+140 °F542.6 psig
+141 °F549.4 psig
+142 °F556.3 psig
+143 °F563.3 psig
+144 °F570.3 psig
+145 °F577.4 psig
+146 °F584.5 psig
+147 °F591.8 psig
+148 °F599.1 psig
+149 °F606.4 psig
+150 °F613.9 psig
Showing 191 rows (-40 °F to 150 °F).psig = psia − 14.696

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