HVAC Psychrometric LT
Single-air stream psych calcs
USD 0.99 · In-App Purchases · Designed for iPad. Not verified for macOS.
We have totally re-written the app from scratch so it will continue to work with current and future versions of all Apple iPhones and iPad.
The "HVAC Psychrometric LT" app is the #1 selling psychrometric application for the Apple iPhone and iPad. Tens of thousands of happy users have downloaded this useful application for performing quick and simple psychrometric analysis. Just a few reasons why you should buy this application:
1. The Psych LT is a universal app that it is optimized for both the iPhone and iPad.
2. This app was developed by Carmel Software, a company that has been developing software for 20+ years. We are experts in software design and HVAC analysis.
3. It allows you to quickly and easily perform single-state HVAC psychrometric calculations.
4. Select and update all input parameters and view the calculated results all in the same screen without switching from one screen to another.
5. Select from 23 different combinations of any 2 input parameters such as "Humidity Ratio / Dewpoint Temperature" and much more.
6. Immediately view updated results as you change the input values using the on-screen slider control. You can specify how much to increase or decrease values as you slide the indicator along the slider mechanism.
7. Send an HTML email and a spreadsheet attachment of all of the single-state and mixed-air inputs and results
The following input and output value-types are displayed:
1. Dry-bulb temperature
2. Humidity ratio
3. Relative Humidity
4. Wet-bulb temperature
5. Partial pressure
6. Enthalpy
7. Specific volume
8. Dewpoint temperature
9. Total airflow or mass flow (for mixed-air calcs, only)
You can specify additional parameters such as the altitude of the air being analyzed, the atmospheric pressure, different types of units such as degrees F or R, and English or Metric units.
The "HVAC Psychrometric LT" application was designed by Carmel Software Corporation, a leader in HVAC design software since 1995. In fact, Autodesk (the makers of AutoCAD) acquired our analysis software and incorporated it into their leading Autodesk Revit software product. In addition, ASHRAE has hired Carmel Software to develop custom mobile apps to accompany their various standards.
We also offer the following apps for the iPhone/iPad:
1. HVAC Residential Load Calcs
2. HVAC Load Plus
3. HVAC Duct Sizer
4. HVAC Pipe Sizer – Gas Low Pressure
5. HVAC Pipe Sizer - Gas High Pressure
6. HVAC Pipe Sizer – Liquid
7. HVAC Pipe Sizer – Steam
8. Steam Tables
9. HVAC Toolkit
10. Psychrometric LT
11. HVAC Pipe Sizer Plus
12. HVAC Pipe Sizer Gas Plus
13. HVAC Quick Load
14. HVAC ResLoad-J
15. HVAC Equipment Locator
16. HVAC Psych HD
Ratings & Reviews
- This app has not received enough ratings or reviews to display an overview.
1. A modernized interface built around Apple's latest UI/UX guidelines, including a full iPad layout.
2. Updated the psychrometric calculations so they are 100% based on the Hands Down Software HDPsyChart calculations, the #1 desktop psych chart software tool in the world.
3. Reports can be sent as PDF, CSV (Excel), and HTML and by email, text message, or any other Share option.
4. A color picker lets you choose the color of the calculated output values.
5. Fully updated and formatted help.
6. Many smaller refinements throughout.
The developer, Carmel Software Corporation, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Carmel Software Corporation
- Size
- 870.4 KB
- Category
- Productivity
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- HVAC Equipment Locator USD 9.99
- Copyright
- © 2027 Carmel Software Corporation. All Rights Reserved.