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HVAC Tools Version 4 Recent Update History

Version Changes

11/18/2015 4.01.13

  1. Fixed a bug on the "Psychrometrics - State Point" window where the calculated Enthalpy and Barometric Pressure values shown were not correct when using metric units. Did the same kind of corrections on the "Psychrometrics - Mixed Air" window.

10/19/2015 4.01.12

  1. Fixed a bug on the Refrigerant Line Sizing printed report where the pipe length values in the "Total Line Length" line were being shown in feet when using metric units.

4/23/2015 4.01.11

  1. Fixed a bug on the Hot/Chilled Water Pipe Sizing window while in the mode to calculate loss, where the value you selected for the Pipe Diameter input was not always being saved, and the value you entered could change to the next available size upon leaving and returning to the case, or upon closing and reopening the window.

4/1/2015 4.01.10

  1. Fixed a bug on the Refrigerant Line Sizing window where your choice for the English units option for Length was not always accepted.

  2. Fixed a bug on the Refrigerant Line Sizing window where it was not possible to enter a decimal point in the values for lengths and capacities.

  3. Fixed a bug on the General Pipe Sizing window where the inside diameter for Type L Copper was 1.085 instead of 1.985 for the 2 inch nominal size.

  4. Fixed a bug that would happen when you first run the program, where the path for the program folder would incorrectly get added to the sub-menu that appears when you click "File | Open Project from Recent Folder".

3/20/2015 4.01.7

  1. Fixed a bug when using certain non-USA region settings in Windows, where the General Pipe Sizing window would lock up upon opening.

  2. Corrected the colors in the top of the two lists at the bottom of the U-Factor Calculator window. Under some system color selections the text in the selected row in that top list was not visible.

  3. Fixed a bug on the Gas Pipe Sizing - High Pressure window, where you could not enter a decimal point in the values in the Minimum Diameter and Maximum Diameter inputs. Fixed the same problem on the Gas Pipe Sizing - Low Pressure window.

  4. Corrected the results shown on the following windows when using certain non-USA Region settings in Windows: Gas Pipe Sizing - High Pressure, Gas Pipe Sizing - Low Pressure, Hot/Chilled Water Pipe Sizing.

3/17/2015 4.01.5

  1. Fixed a bug on the Refrigerant Line Sizing window where selecting Ammonia for the Refrigerant Type input would cause various errors.

9/12/2014 4.01.4

  1. Fixed bugs on the Gas Pipe Sizing - High Pressure window, where changing some of the units input options would cause some of the other input values on the window to have bogus values. Corrected the same kind of problem on the Gas Pipe Sizing - Low Pressure and Duct Sizing windows.

7/14/2014 4.01.2

  1. Corrected a problem on the Psychrometrics - Mixed Air and Psychrometrics - State Point windows, where you if you entered a dry bulb below 32 degrees F the Messages box would say that the input data were out of range.

5/6/2014 4.01.1

  1. Fixed a bug on the Hot/Chilled Water Pipe Sizing window, where if you changed the units option from IP to SI or vice-versa the dropdown help for the Fluid Density and Fluid Viscosity inputs would not immediately change to the other unit values.

  2. Fixed a problem on the Hot/Chilled Water Pipe Sizing window and the corresponding report, where the units label for Total Head Loss was being shown as ft./100 ft. instead of just feet.

  3. Fixed a bug on the Gas Pipe Sizing - High Pressure window, where you could not type a decimal point in the Upstream Pressure and Downstream Pressure inputs.

1/16/2014 4.01.0 (Official Release)

  1. Made some more changes in the help file.

1/10/2014 4.00.113 (Beta 3)

  1. Corrected the Total Interest and Total Payment on the Loan Calculator so that the monthly payment value used to determine those results is first rounded off to the nearest cent.

  2. Changed the program name from "H-Tools" to "HVAC Tools."

  3. Made various other changes.

11/25/2013 4.00.111 (Beta 2)

  1. Corrected the dropdown help for the Heat Flow inputs on the U-Factor Calculator window.

  2. Created the help file and added it to the installation.

  3. Added reports for each tool.

  4. Corrected the arrow and Enter key navigation on several windows.

  5. Made various other changes throughout the program.

8/12/2013 4.00.107 (Beta 1)

  1. Made several changes to the Refrigeration Line Sizing window.

  2. Fixed a bug in the hot/chilled water calculations that would create an error when evalulating the project.

  3. Modified the Sample project imported from version 3 so that every tool is within the demo limits.

7/22/2013 4.00.104

  1. Added options for 3/8 inch size for several of the refrigerant types on the refrigeration line sizing window. Modified 34 of the data table files to include extrapolated values for the 3/8 inch size whereever possible.

  2. Added units options on the duct sizing window.

6/27/2013 4.00.102 (Test Version)

  1. Added an "Open Project from Recent Folder" item in the File menu, which lets you display the Open Project dialog already set to one of your recent project folders.

  2. Added a "Browse Recent Folder" button to the multi-project Project Explorer window, which lets you instantly change the list of project files to that of any of your recent project folders.

  3. Changed the way the Refrigeration Line Sizing tool deals with double risers regarding the fitting equivalent lengths that are added.

  4. Made several other changes.

1/31/2013 4.00.84 Test Version

  1. Made corrections to the setup.

  2. Made it so various databases get updated as needed.

1/25/2013 4.00.79 Test Version

  1. Made various corrections.

  2. Added a "Num Pad" toolbar that lets you enter numeric values into inputs by clicking with the mouse.


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