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Refrigerant Color Codes

Reference data and engineering information about refrigerant color codes for miscellaneous applications.

refrigerantcolorcodes

Overview

Engineering reference data for Refrigerant Color Codes in miscellaneous.

Key Formulas

Unit Conversion

y=x⋅ky = x \cdot k

Multiply by conversion factor.

Linear Interpolation

y=y1+(x−x1)(y2−y1)x2−x1y = y_1 + \frac{(x - x_1)(y_2 - y_1)}{x_2 - x_1}

Estimate between two known points.

Percentage

p=partwhole×100%p = \frac{\text{part}}{\text{whole}} \times 100\%

Part as fraction of whole.

Variables

SymbolDescriptionUnit
xxInput value—
yyOutput value—
kkConversion factor—

Refrigerant Color Code Reference

The following table provides a comprehensive listing of refrigerant designation codes, their corresponding chemical names, and the standard color used for cylinder and system identification.

66 rows
Comprehensive list of refrigerant color codes as specified by AHRI Guideline N and other industry standards.
Refrigerant
Chemical Name
Color Code
R-11TrichlorfluoromethaneOrange
R-12DichlorodifluoromethaneWhite
R-13ChlorotrifluoromethaneLight Blue (Sky)
R-13B1BromotrifluoromethanePinkish-Red (Coral)
R-113TrichlorotrifluoroethaneDark Purple (Violet)
R-114DichlorotetrafluoroethaneDark Blue (Navy)
R-12/114Dichlorodifluoromethane, DichlorotetrafluoroethaneLight Gray
R-14TetrafluoromethaneYellow-Brown (Mustard)
R-22ChlorodifluoromethaneLight Green
R-23TrifluoromethaneLight Blue Gray
R-32DifluoromethaneLight Blue-Green
R-116HexafluoroethaneDark Grey (Battleship)
R-123DichlorotrifluoroethaneLight Blue Gray
R-124ChlorotetrafluoroethaneDOT Green
R-125PentafluoroethaneMedium Brown (Tan)
R-134aTetrafluoroethaneLight Blue
R-236fa1,1,1,3,3,3-HexafluoropropaneDark Grey (Battleship)
R-245fa1,1,1,3,3-PentafluoropropaneMaroon
R-401AChlorodifluoromethane, Difluoroethane, ChlorotetrafluoroethanePinkish-Red (Coral)
R-401BChlorodifluoromethane, Difluoroethane, ChlorotetrafluoroethaneYellow-Brown (Mustard)
R-401CChlorodifluoromethane, Difluoroethane, ChlorotetrafluoroethaneBlue-Green (Aqua)
R-402AChlorodifluoromethane, Pentafluoroethane, PropaneLight-Brown (Sand)
R-402BChlorodifluoromethane, Pentafluoroethane, PropaneGreen-Brown (Olive)
R-403BChlorodifluoromethane, Octafluoropropane, PropaneLight Purple (Lavender)
R-404APentafluoroethane, Trifluoroethane, TetrafluoroethaneOrange
R-407ADifluoromethane, Pentafluoroethane, TetrafluoroethaneLime Green
R-407BDifluoromethane, Pentafluoroethane, TetrafluoroethaneCream
R-407CDifluoromethane, Pentafluoroethane, TetrafluoroethaneBrown
R-407DDifluoromethane, Pentafluoroethane, TetrafluoroethaneDark Brown (Chocolate)
R-407FDifluoromethane, Pentafluoroethane, TetrafluoroethaneGreen-Yellow-White
R-407HDifluoromethane, Pentafluoroethane, TetrafluoroethaneLight Purple (wisteria)
R-408AChlorodifluoromethane, Trifluoroethane, PentafluoroethaneMedium Purple
R-409AChlorodifluoromethane, Chlorotetrafluoroethane, ChlorodifluoroethaneMedium Brown
R-410ADifluoromethane, PentafluoroethaneRose
R-411APropene, Difluoroethane, ChlorodifluoromethaneDark Purple (Violet)
R-411BPropene, Difluoroethane, ChlorodifluoromethaneBlue-Green (Teal)
R-413AOctafluoropropane, Tetrafluoroethane, TetrafluoroethaneDeep Blue
R-414AChlorodifluoromethane, Chlorotetrafluoroethane, Chlorodifluoroethane, IsobutaneBeige
R-414BChlorodifluoromethane, Chlorotetrafluoroethane, Chlorodifluoroethane, IsobutaneMedium Blue
R-416ATetrafluorethane, Chlorotetrafluoroethane, ButaneYellow-Green (Lime)
R-417APentafluoroethane, Tetrafluoroethane, IsobutaneGreen
R-421APentafluoroethane, TetrafluoroethaneLight Green-Blue
R-422APentafluoroethane, Tetrafluoroethane, IsobutaneYellow-Orange
R-422DPentafluoroethane, Tetrafluoroethane, IsobutaneGreen-Yellow
R-423APentafluoroethane, Tetrafluoroethane, IsobutaneWedge Wood Blue
R-424APentafluoroethane, Tetrafluoroethane, IsobutaneBlack
R-426APentafluoroethane, Tetrafluoroethane, IsobutanePastel Orange
R-427APentafluoroethane, Tetrafluoroethane, IsobutaneGreen-Blue (Jungle Green)
R-428APentafluoroethane, Tetrafluoroethane, IsobutaneTraffic Yellow
R-434APentafluoroethane, Tetrafluoroethane, IsobutaneSulfur Yellow
R-437APentafluoroethane, Tetrafluoroethane, IsobutaneRoyal Blue
R-438ADifluoromethane, Pentafluoroethane, Tetrafluoroethane, IsobutaneBlue Jay
R-442ADifluoromethane, Pentafluoroethane, Tetrafluoroethane, IsobutaneNight Blue
R-448ADifluoromethane, Pentafluoroethane, Tetrafluoroethane, IsobutaneGentian Blue
R-449ADifluoromethane, Pentafluoroethane, Tetrafluoroethane, IsobutaneGrayish Blue
R-450ADifluoromethane, Pentafluoroethane, Tetrafluoroethane, IsobutaneSapphire Blue
R-452ADifluoromethane, Pentafluoroethane, Tetrafluoroethane, IsobutaneMetallic Blue
R-453ADifluoromethane, Pentafluoroethane, Tetrafluoroethane, IsobutaneDark Purple (Violet)
R-455ADifluoromethane, Pentafluoroethane, Tetrafluoroethane, IsobutaneSea Foam Green
R-500Dichlorotrifluoromethane, DifluoroethaneYellow
R-502Chlorodifluoromethane, ChloropentafluoroethaneLight Purple (Lavender)
R-503Chlorotrifluoromethane, TrifluoromethaneBlue-Green (Aqua)
R-507APentafluoroethane, TrifluoroethaneBlue Green (Teal)
R-508BTrifluoromethane, HexafluoroethaneDark Blue (Navy)
R-513APentafluoroethane, TetrafluoroethaneSky Blue
R-514AChlorodifluoromethane, Chlorotetrafluoroethane, ChlorodifluoroethanePinkish Purple

Source: engineeringtoolbox.com

References

Source: engineeringtoolbox.com