REFRIGERANT • PT DATA v1

R-449A

PT data, curve stats, and quick routes into the field calculators. Data shown here is derived from the versioned PT asset set under /assets/pt/v1.

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At a glance

SAFETY • —

CURVE • dew

POINTS • 150

GWP

ODP

Curves available

Dew + Bubble

Pressure range (psig)

-68.2 to 137.6

Temperature range (°F)

-19 to 428

Note: PT points are stored in psig and °F. For blends, bubble and dew represent different saturation states. Always follow OEM charging procedures.

Quick actions

These routes are designed to be technician-friendly: minimal taps, prefilled context, and predictable URLs for bookmarks and sharing.

Open PT Chart

Fast lookup (pressure ↔ temp)

Open →

Browse Equipment

See equipment using this refrigerant

Open →

Superheat/Subcool

Preselect this refrigerant

Open →

Charge Calculator

Line set adjustments

Open →

Curve toggle

Auto Dew Bubble

Tip: For blends, evaporator saturation is typically based on dew, and condenser saturation is typically based on bubble.

Pressure → Saturation temperature (quick)

Linear interpolation between nearest points. Out-of-range values show “—”.

Pressure (psig)	Sat Temp (°F)	Source
0	23.6	linear
25	56.4	linear
50	102.7	linear
75	166	linear
100	250.2	linear

Do a lookup in PT Chart →

Temperature → Saturation pressure (quick)

Useful for “I have a target saturation temp—what pressure should I see?” checks.

Temp (°F)	Sat Pressure (psig)	Source
0	-27	linear
20	-3.4	linear
40	13.6	linear
60	27.3	linear
80	38.7	linear
100	48.7	linear
120	57.6	linear
140	65.7	linear

Use this in Superheat/Subcool →

Data source & notes

PT asset ID

r449a

Original name

R-449A

CAS

—

Units

psig / F (atm: 14.6959 psi)

Default curve

dew

PT index version

v1(from /assets/pt/v1/index.json)

Safety note: PT lookups are a foundational building block for charging and diagnostics, but they do not replace OEM procedures or full system context.