HVAC PT Buddy contains Pressure Temperature relationships for over 100 refrigerants in both Metric and English units in one degree increments. All refrigerant blends have bubble and dew points on the same line. To better indicate temperature glide R404a, R407c, and R410a show both temperatures for the same pressure on one line. For most of the current common refrigerants you can also view several additional thermodynamic properties enthalpy, entropy, specific heat, etc. Each refrigerant has chemical name, boiling point, critical pressure, critical temperature.

In short, this is the most comprehensive list of refrigerant properties available.

Core Functionality:

• Pressure / temperature relationships
• One degree Increments
• Fahrenheit and Celsius
• Last refrigerant selection recall
• Quick jump to top and bottom of list


R-11, R-12, R-13, R-13b1, R-21, R-22, R-23, R-32, R-113, R-114, R-115, R-116, R-123, R-124, R-125, R-134a, R-E134, R-141b, R-142b, R-143a, R-152a, R-170, R-E170, R-218, R-227ea, R-236ea, R-236fa, R-245ca, R-245cb, R-245fa, R-E245fa1, R-C270, R-290, R-C318, R-400-(50/50), R-400-(60/40), R-401A, R-401B, R-401C, R-402A, R-402B, R-403A, R-403B, R-404a, R-406A, R-407A, R-407B, R-407c, R-407D, R-408A, R-409A, R-410a, R-410B, R-411A, R-411B, R-412A, R-413A, R-414A, R-414B, R-415A, R-416A, R-417A, R-420A, R-421A, R-422A, R-422B, R-422C, R-422D, R-500, R-501, R-502, R-503, R-504, R-507a, R-507, R-508B, R-509A, R-600, R-600a, R-601, R-601a, R-717, R-718, R-744, R-1150, R-1270, FR-12, FX-220, FX-40, G2018c, GHG-HP, GHG-X5, HX4, NARM-12, NARM-22

Additional expanded thermodynamic properties are available at each pressure / temperature combination for the following refrigerants:

R12, R22, R23, R32, R123, R124, R125, R134a, R143a, R152a, R170, R245fa, R290, R404a, R407c, R410a, R507a, R600, R600a, R717, R718, R744, R1150, and R1270

Metric and Imperial expanded thermodynamic properties include:

• Bubble and Dew temp
• Pressure (psia / MPa)
• Density of Liquid
• Volume of Vapor
• Enthalpy of Liquid and Vapor
• Entropy of Liquid and Vapor
• Specific Heat of Liquid and Vapor

These properties are available by tapping on the pressure temperature row.

Notes on Refrigerant Blends:

• Bubble and dew points combined on one line for all blends
• R404a, R407c, and R410a key on pressure to better indicate temperature glide

Additional information:

• Chemical Name
• Formula
• Ozone depletion potential (ODP)
• global warming potential (GWP)
• molecular mass
• boiling point
• critical pressure
• critical temperature

Roughly a fourth of the refrigerants have additional information including color code, lubricants, etc.

HVAC PT Buddy is part of the HVACBuddy Suite of applications for the HVAC/R industry. We strive to make each app the best in class solution for it's purpose. You can be confident the app you buy today will continue to be updated and improved.

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What’s New

Version 3.0.7

Quickly change between refrigerants directly from the PT chart.

Ratings and Reviews

1.8 out of 5
8 Ratings

8 Ratings

Gyz400 ,

When will this app be updated?!?!

I have paid for this app and it’s not being updated, along with several other apps by Kevin Burandt, that were paid for (in good faith) so that they would be maintained by the developer. When will they be updated?!?!

Developer Response ,

Please accept our apologies for the delay. The app has been updated with a new interface and latest libraries. Kind regards, Kevin Burandt

kswkrw ,

Update your apps please

I bought a bundle of your apps and I love them, they help my daily work load. Now that my IPhone was updated to iOS 11.1 I can no longer use what I paid for. PLEASE UPDATE.

Developer Response ,

Please accept our apologies for the delay. The app has been updated with a new interface and latest libraries. Kind regards, Kevin Burandt

Karat023 ,

Update please

It was a good app for the price but when my iPhone updated the app is worthless, please take care of your clients and update your app.

Developer Response ,

Please accept our apologies for the delay. The app has been updated with a new interface and latest libraries. Kind regards, Kevin Burandt


Kevin Burandt
44.6 MB

Requires iOS 10.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating


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