[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"doc-seo-455092-105":3,"detail-sidebar-cat-0-en-105":81,"doc-detail-455092-en":130},{"code":4,"msg":5,"data":6},0,"ok",{"site_id":7,"language":8,"slug":9,"title":10,"keywords":11,"description":12,"schema_data":13,"social_meta":74,"head_meta":76,"extra_data":78,"updated_unix":80},105,"en","epa-608-refrigerant-pressure-temperature-chart-142","EPA 608 Refrigerant Pressure-Temperature Chart - 1.42","","Refrigerant pressure–temperature reference tables for the Official EPA 608 exam, presenting pressure values across a range of temperatures. The chart compares low-pressure refrigerants (\u003C30 psig) and medium/high-pressure refrigerants measured against condensing temperature at 104°F, with values organized by ASHRAE classes and refrigerant types. It includes GWP, pressure categories, and bubble-liquid versus dew-vapor calculations for selected refrigerants to support exam study and verification.",{"@graph":14,"@context":73},[15,34,56],{"@type":16,"itemListElement":17},"BreadcrumbList",[18,23,27,31],{"item":19,"name":20,"@type":21,"position":22},"https://docshare.wps.com","Home","ListItem",1,{"item":24,"name":25,"@type":21,"position":26},"https://docshare.wps.com/document/","Document",2,{"item":28,"name":29,"@type":21,"position":30},"https://docshare.wps.com/document/exam/","Exam",3,{"item":32,"name":10,"@type":21,"position":33},"https://docshare.wps.com/document/epa-608-refrigerant-pressure-temperature-chart-142/455092/",4,{"url":32,"name":10,"@type":35,"image":36,"author":41,"headline":10,"publisher":44,"fileFormat":47,"inLanguage":8,"description":12,"dateModified":48,"datePublished":49,"encodingFormat":47,"isAccessibleForFree":50,"interactionStatistic":51},"DigitalDocument",{"url":37,"@type":38,"width":39,"height":40},"https://docshare.wps.com/thumbnails/epa-608-refrigerant-pressure-temperature-chart-142/455092.png","ImageObject",300,407,{"name":42,"@type":43},"Fans","Person",{"url":19,"name":45,"@type":46},"DocShare","Organization","application/pdf","2026-10-26","2026-09-30",true,{"@type":52,"interactionType":53,"userInteractionCount":55},"InteractionCounter",{"@type":54},"ViewAction",9,{"@type":57,"mainEntity":58},"FAQPage",[59,65,69],{"name":60,"@type":61,"acceptedAnswer":62},"What temperatures and pressure ranges are covered by this EPA 608 chart?","Question",{"text":63,"@type":64},"The chart lists refrigerant pressure values at multiple temperature points. It separates ranges into low-pressure (\u003C30 psig), medium-pressure (30–155 psig), and higher-pressure sections (e.g., 155–340 psig) tied to a condensing temperature reference of 104°F.","Answer",{"name":66,"@type":61,"acceptedAnswer":67},"How does the chart distinguish between bubble liquid and dew vapor?",{"text":68,"@type":64},"For applicable refrigerants, the table provides separate values labeled as Bubble Liquid and Dew Vapor. This lets readers compare pressures corresponding to different phase/conditions at the same temperature step.",{"name":70,"@type":61,"acceptedAnswer":71},"What role do ASHRAE class and GWP play in the chart?",{"text":72,"@type":64},"Each refrigerant column is associated with an ASHRAE class entry and a GWP value. This supports classification and environmental-impact context alongside the pressure–temperature data used for studying EPA 608 concepts.","https://schema.org",{"og:url":32,"og:type":75,"og:title":10,"og:site_name":45,"og:description":12},"article",{"robots":77,"canonical":32},"index,follow",{"doc_id":79,"site_id":7},455092,1790904970,{"code":4,"msg":82,"data":83},"success",[84,88,92,95,100,105,110,115,119,122,126],{"id":22,"doc_module":4,"doc_module_name":25,"category_name":85,"show_sort_weight":86,"slug":87},"Story & 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155 psigat 104°F condensing temperature |  |  |  |  |  |  |  |  |\n| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |\n| ASHRAE\u003Cbr>Class | B1 | B1 | A2L | A1 | A1 | A1 |  | A1 | A3 | A2L | A2L | ASHRAE\u003Cbr>Class |\n| GWP | 77 | 1030 | 4.7-7 | 10,900 | 609 | 1558 |  | 1430 | 3 | 4 | 6 | GWP |\n|  | HCFC | HFC | HFO | CFC | HCFC | HCFC R-409A |  | HFC | Hydrocarbon\u003Cbr>Isobutane | HFO | HFO |  |\n| °F | R-123 | R-245fa | R-1233zd | R-12 | R-124 | Bubble*\u003Cbr>Liquid | Dew*\u003Cbr>Vapor | R-134a | R-600a | R-1234yf | R-1234ze | °F |\n| -40° | * | -13.9 | -28.3 | -11.0 | -22.1 | 6.7 | -14.8 | -14.8 | -21.6 | -11.5 | -19.1 | -40° |\n| -35° | * | -13.7 | -28.0 | -8.4 | -20.9 | 3.5 | -12.5 | -12.5 | -20.4 | -8.9 | -17.4 | -35° |\n| -30° | * | -13.5 | -27.6 | -5.5 | -19.4 | 0.0 | -9.9 | -9.8 | -18.9 | -6.0 | -15.4 | -30° |\n| -25° | * | -13.2 | -27.2 | -2.4 | -11.8 | 1.9 | -7.0 | -6.9 | -17.4 | -2.8 | -13.3 | -25° |\n| -20° | -27.8 | -13.0 | -26.7 | 0.5 | -16.0 | 4.0 | -3.8 | -3.1 | -15.6 | 0.4 | -10.9 | -20° |\n| -15° | -27.4 | -12.7 | -26.1 | 2.4 | -14.0 | 6.3 | 2.0 | -0.1 | -13.7 | 2.3 | -8.2 | -15° |\n| -10° | -26.9 | -12.2 | -25.5 | 4.5 | -11.8 | 8.8 | 1.8 | 1.9 | -11.5 | 4.4 | -5.3 | -10° |\n| -5° | -26.4 | -11.9 | -24.7 | 6.7 | -9.3 | 11.6 | 4.0 | 4.1 | -9.2 | 6.7 | -2.0 | -5° |\n| 0° | -25.9 | -11.4 | -23.9 | 9.1 | -6.6 | 14.6 | 6.3 | 6.5 | -6.6 | 9.1 | -0.8 | 0° |\n| 5° | -25.2 | -11.0 | -23.0 | 11.7 | -3.6 | 17.8 | 8.8 | 9.1 | -3.8 | 12.0 | 2.7 | 5° |\n| 10° | -24.5 | -10.4 | -22.0 | 14.6 | -0.3 | 21.3 | 11.6 | 11.9 | -0.7 | 14.9 | 4.8 | 10° |\n| 15° | -23.8 | -9.5 | -20.8 | 17.7 | 1.6 | 25.1 | 14.7 | 15.0 | 1.3 | 18.1 | 7.2 | 15° |\n| 20° | -22.8 | -9.1 | -19.5 | 21.0 | 3.6 | 29.2 | 18.0 | 18.4 | 3.1 | 21.6 | 9.7 | 20° |\n| 25° | -21.8 | -8.0 | -18.1 | 24.6 | 5.7 | 33.6 | 21.6 | 22.1 | 5.0 | 25.4 | 12.5 | 25° |\n| 30° | -20.7 | -7.5 | -16.5 | 28.4 | 8.0 | 38.4 | 25.5 | 26.1 | 7.1 | 29.4 | 15.4 | 30° |\n| 35° | -19.5 | -6.8 | -14.7 | 32.5 | 10.5 | 43.4 | 29.7 | 30.4 | 9.4 | 33.8 | 18.7 | 35° |\n| 40° | -18.1 | -5.6 | -12.8 | 36.9 | 13.2 | 48.9 | 34.2 | 35.0 | 11.8 | 38.4 | 22.2 | 40° |\n| 45° | -16.6 | -4.2 | -10.7 | 41.6 | 16.1 | 54.7 | 39.1 | 40.1 | 14.4 | 43.4 | 26.0 | 45° |\n| 50° | -14.9 | -2.8 | -8.3 | 46.6 | 19.3 | 60.9 | 44.3 | 45.4 | 17.2 | 48.8 | 30.0 | 50° |\n| 55° | -13.0 | -1.8 | -5.8 | 51.9 | 22.7 | 67.5 | 49.9 | 51.2 | 20.2 | 54.5 | 34.4 | 55° |\n| 60° | -11.2 | 0.0 | -3.0 | 57.6 | 26.3 | 74.5 | 55.9 | 57.4 | 23.5 | 60.6 | 39.1 | 60° |\n| 65° | -8.9 | 1.9 | 0.0 | 63.7 | 30.2 | 81.9 | 62.3 | 64.0 | 26.9 | 67.0 | 44.1 | 65° |\n| 70° | -6.5 | 3.5 | 1.6 | 70.1 | 34.4 | 89.8 | 69.2 | 71.1 | 30.6 | 73.9 | 49.5 | 70° |\n| 75° | -4.1 | 5.9 | 3.4 | 76.8 | 38.9 | 98.2 | 76.5 | 78.7 | 34.5 | 81.3 | 55.2 | 75° |\n| 80° | -1.2 | 7.9 | 5.3 | 84.0 | 43.7 | 107 | 84.2 | 86.7 | 38.6 | 89.0 | 61.3 | 80° |\n| 85° | 0.9 | 10.2 | 7.3 | 91.6 | 48.8 | 116 | 92.5 | 95.2 | 43.0 | 97.2 | 67.8 | 85° |\n| 90° | 2.5 | 12.8 | 9.5 | 99.6 | 54.3 | 126 | 101 | 104 | 47.7 | 106 | 74.8 | 90° |\n| 95° | 4.3 | 15.8 | 11.9 | 108 | 60.1 | 137 | 111 | 114 | 52.7 | 115 | 82.1 | 95° |\n| 100° | 6.1 | 19.0 | 14.4 | 117 | 66.2 | 148 | 120 | 124 | 57.9 | 125 | 89.9 | 100° |\n| 104° | 7.7 | 21.3 | 16.6 | 124 | 71.4 | 157 | 129 | 133 | 62.3 | 133 | 96.5 | 104° |\n| 105° | 8.1 | 23.0 | 17.1 | 126 | 72.7 | 159 | 131 | 135 | 63.4 | 135 | 98.2 | 105° |\n| 110° | 10.3 | 26.0 | 20.0 | 136 | 79.6 | 171 | 142 | 146 | 69.3 | 146 | 107 | 110° |\n| 115° | 12.6 | 30.0 | 23.1 | 146 | 86.9 | 184 | 153 | 158 | 75.4 | 157 | 116 | 115° |\n| 120° | 15.1 | 33.0 | 26.5 | 157 | 94.6 | 197 | 166 | 171 | 81.9 | 169 | 126 | 120° |\n| 125° | 17.8 | 36.0 | 30.0 | 169 | 103 | 211 | 179 | 185 | 88.7 | 182 | 136 | 125° |\n| 130° | 20.6 | 41.0 | 33.8 | 181 | 111 | 226 | 192 | 199 | 95.8 | 195 | 147 | 130° |\n| 135° | 23.6 | 46.0 | 37.8 | 193 | 120 | 241 | 207 | 214 | 103 | 209 | 158 | 135° |\n","cbCaivAALEHCtukN","https://ap.wps.com/l/cbCaivAALEHCtukN","pdf",448536,"English","# Refrigerant pressure-temperature tables\n## Low-, medium-, and high-pressure refrigerant ranges\n## ASHRAE class and GWP references","[{\"question\":\"What temperatures and pressure ranges are covered by this EPA 608 chart?\",\"answer\":\"The chart lists refrigerant pressure values at multiple temperature points. It separates ranges into low-pressure (\\u003c30 psig), medium-pressure (30–155 psig), and higher-pressure sections (e.g., 155–340 psig) tied to a condensing temperature reference of 104°F.\"},{\"question\":\"How does the chart distinguish between bubble liquid and dew vapor?\",\"answer\":\"For applicable refrigerants, the table provides separate values labeled as Bubble Liquid and Dew Vapor. This lets readers compare pressures corresponding to different phase/conditions at the same temperature step.\"},{\"question\":\"What role do ASHRAE class and GWP play in the chart?\",\"answer\":\"Each refrigerant column is associated with an ASHRAE class entry and a GWP value. This supports classification and environmental-impact context alongside the pressure–temperature data used for studying EPA 608 concepts.\"}]","EPA 608 Refrigerant Pressure-Temperature Chart - 1.42 | PDF",1790742096]