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HVAC Buddy® app for iPhone and iPad


4.6 ( 8656 ratings )
Business Productivity
Developer: Kevin Burandt
9.99 USD
Current version: 5.0.14, last update: 3 years ago
First release : 20 Aug 2009
App size: 91.13 Mb

Make your job easier with our refrigerant charging and diagnostic HVAC app - HVAC Buddy®. If you are servicing equipment the best way to begin diagnosis and determine the proper refrigerant charge is to use HVAC Buddy®, a set of gauges, and a thermometer.

• Superheat for fixed capillary or Subcooling forTXV/EXV systems
• Calculates targeted vs. actual Subcooling
• Over 100 refrigerants including newer azeotropic blends
• Airflow / Delta-T / TEET Calculation
• Email System Status Report
• Imperial (IP) or Metric (SI)
• Use Target Superheat and Subcooling tables or enter manually
• Update all values with realtime output
• Line Chart displays historical values based on input changes or elapsed time

If the early outdoor temperature is 75F and you charge the system to a “beer can cold” suction line your system is likely improperly charged. Later in the afternoon high temperatures will increase head pressure and the resulting overcharge means a lower than desired superheat and wasted energy. Not good!

Overall Process:

• Enter refrigerant, temps, and pressures
• The math is done for you to display Superheat, Subcooling and Airflow Target, Actual, and Difference
• Email all readings (detail)

Other Features:

• Flexible units - psi, kPa, Fahrenheit, Celsius, etc.
• Calculates Superheat and Subcooling targets
• Airflow - For cooling, compares a targeted difference across the coil vs. actual. Also called Delta-T or Target Evaporator Exit Temperature (TEET).
• System Status Report - Use the email tab to create defaults for email addresses, subject, and System Status Report introductory text. Tap the email button and these values are incorporated into a formatted page including all the parameters recorded in HVAC Buddy. Edit the email and / or add contacts from your contact list. Then on each service call its just a couple taps to send a personalized report.

Accolades and Awards:
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HVAC Buddy® ranked #2 in ContractingBusiness.com readers choice of top 10 contracting apps.

HVAC Buddy® was featured by the California Association of HERS Raters and is CalHERS approved!

"Very cool app. I can see California really running with this as we have strict requirements for verification." - John Richau, Executive Director, Calhers

"an excellent programme" - Charlie Richards

HVAC Buddy® Load Calc - Now Available

HVAC Buddy® Duct Calc - Powerful tool with a simple to use real-time interface to help you choose optimal duct sizes.

HVAC Buddy® Pressure Temperature - Over 90 Refrigerant combinations and their corresponding PT relationship in Metric or Imperial units.

HVAC Buddy® Psychrometric - Quickly calculate thermodynamic properties of moist air at temperatures commonly used in HVAC systems. Enter multiple sets of properties, mix air streams.

Pros and cons of HVAC Buddy® app for iPhone and iPad

HVAC Buddy® app good for

I just purcahased the iPhone a few weeks ago. And at the same time my 410A superheat and subcooling chart was ruined by my custermers dog. Yes! The dog tore my chart to pices. So, I starded calling my supplyers to see if they had the sliding calculator that I needed. And to my amazment none had any. Well, I came across this app and Ive been putting it to the test. It was I bit confusing at first just because. Just let me say that this app is great. Keep up the good work !!!
Setting up a bunch of ACs this year and was tired of running back to the truck for the slide ruler all the time. I saw this app and man I can tell you that it works perfectly. I swear by it. It does superheat, subcool and airflow. Great for new installs as well as service.
Im a HVAC tech and I could have used this a few hours ago. It doesnt matter if this is your profession or not this will come in handy. This is not a bot review Im just some dude. Thanks
I used it to explain charging to an apprentice that unfortunately does not have his own iphone. If you have one, great.
I carry my buddy around on all my jobs now and it really simplifies the process. No more note taking, no charts to carry around just plug in the numbers from my metering devices and presto!
I love HVAC Buddy! It just went from "neat app" to "fricken sick"! Ive used it occasionally and have been happy with it. It didnt do anything I couldnt do with my gauges, clamp on, and a piece of paper but now with the ability to e-mail the info from every call I go on this app is a must! I was going to buy a $200+ data logger that would print out that info...not any more. Thanks.

Some bad moments

This app is terrible. Not worth any hvacr mechanics time. Complete rip off!
The new upgrade has problems. I found that trying to get to the number I need I have to tap the screen over and over. Then the button gets stuck next thing I am into the thousands. Removed and reloaded older version.
The calculations part is ok, the trouble shooting and explanation are just slapped together. I expected more from this app
App really disappointed me with the lack of refrigerants. At least state a list of them on the description details. Missing a lot of refrigerants like 407c,422 and many more. I mean I really wanted it for the refrigerants I dont normally come across and need a idea of the pressure.
Cant put enough info in email. Presets for calculated values are off. I dont usually need 32 degrees of SH as my target. Too expensive for just email capabilities.
Old version was great!! New version is worthless do not buy.. Please change it back!!

Usually HVAC Buddy® iOS app used & searched for

hvac, hvac buddy®, charge hvac, and other. So, download free HVAC Buddy® .ipa to run this nice iOS application on iPhone and iPad.