REFRIGERANT • PT DATA v1

R-420A

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.

RefrigerantsLearnDownload JSON

At a glance

SAFETY • A1
CURVE • bubble
POINTS • 381
GWP
1500
ODP
Curves available
Dew + Bubble
Pressure range (psig)
-14.66 to 574.97
Temperature range (°F)
-160 to 220
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
AutoDewBubble
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
0-12.9linear
2531.2linear
5056.8linear
7575.7linear
10091linear
150115.2linear
200134.4linear
250150.5linear
300164.5linear
350176.9linear
400188linear
450198.1linear
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
-40-7.6exact
-20-2.4exact
05.4exact
2016.8exact
4032.6exact
6053.8exact
8081.6exact
100117.1exact
120161.6exact
140216.4exact
Use this in Superheat/Subcool →

Data source & notes

PT asset ID
r420a
Original name
R-420A
CAS
811-97-2/75-68-3
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.