DALC
Free
2.1for iPhone, iPad and more
Age Rating
DALC Screenshots
About DALC
This simple to use but effective application is provided by the Sheet Metal and Air Conditioning Contractors’ National Association (SMACNA). This tool allows engineers, architects, designers, and contractors to easily and accurately estimate the leakage of air from ductwork. It also allows a quick and easy way to determine the pass/fail mark for properly specified Duct Air Leakage Tests (DALT).
Users can combine multiple sections of ductwork that vary by size and shape to calculate a total allowable leakage. The application uses the method outlined in SMACNA’s HVAC Air Duct Leakage Manual, and provides suggested leakage classes from SMACNA’s latest edition of the manual. The method used is compliant with ASHRAE 90.1, IECC, IGCC Version 2, IMC and the UMC.
Users can combine multiple sections of ductwork that vary by size and shape to calculate a total allowable leakage. The application uses the method outlined in SMACNA’s HVAC Air Duct Leakage Manual, and provides suggested leakage classes from SMACNA’s latest edition of the manual. The method used is compliant with ASHRAE 90.1, IECC, IGCC Version 2, IMC and the UMC.
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What's New in the Latest Version 2.1
Last updated on Nov 24, 2014
Old Versions
This app has been updated by Apple to display the Apple Watch app icon.
Key Changes:
• Calculations can now be produced in English and Metric units
• The app produces final reports in pdf and csv (excel) formats
• Project information and specifications can now be saved and edited
• There is a new “Custom” shape section that allows the user to input dimensions for different duct shapes.
• “Surface Area” tab can now be used in place of inputting specific dimensions (width, length, etc.) for duct
Key Changes:
• Calculations can now be produced in English and Metric units
• The app produces final reports in pdf and csv (excel) formats
• Project information and specifications can now be saved and edited
• There is a new “Custom” shape section that allows the user to input dimensions for different duct shapes.
• “Surface Area” tab can now be used in place of inputting specific dimensions (width, length, etc.) for duct
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Version History
2.1
Nov 24, 2014
This app has been updated by Apple to display the Apple Watch app icon.
Key Changes:
• Calculations can now be produced in English and Metric units
• The app produces final reports in pdf and csv (excel) formats
• Project information and specifications can now be saved and edited
• There is a new “Custom” shape section that allows the user to input dimensions for different duct shapes.
• “Surface Area” tab can now be used in place of inputting specific dimensions (width, length, etc.) for duct
Key Changes:
• Calculations can now be produced in English and Metric units
• The app produces final reports in pdf and csv (excel) formats
• Project information and specifications can now be saved and edited
• There is a new “Custom” shape section that allows the user to input dimensions for different duct shapes.
• “Surface Area” tab can now be used in place of inputting specific dimensions (width, length, etc.) for duct
2.0
Nov 12, 2014
SMACNA’s DUCT AIR LEAKAGE Calculator (DALC) Version 2.0 offers several new features and enhances previous features from the original DALC.
Key Changes:
• Calculations can now be produced in English and Metric units
• The app produces final reports in pdf and csv (excel) formats
• Project information and specifications can now be saved and edited
• There is a new “Custom” shape section that allows the user to input dimensions for different duct shapes.
• “Surface Area” tab can now be used in place of inputting specific dimensions (width, length, etc.) for duct
Key Changes:
• Calculations can now be produced in English and Metric units
• The app produces final reports in pdf and csv (excel) formats
• Project information and specifications can now be saved and edited
• There is a new “Custom” shape section that allows the user to input dimensions for different duct shapes.
• “Surface Area” tab can now be used in place of inputting specific dimensions (width, length, etc.) for duct
1.1
Apr 12, 2011
iPhone home button now resets application
1.0
Mar 31, 2011
DALC FAQ
Click here to learn how to download DALC in restricted country or region.
Check the following list to see the minimum requirements of DALC.
iPhone
Requires iOS 6.0 or later.
iPad
Requires iPadOS 6.0 or later.
iPod touch
Requires iOS 6.0 or later.
DALC supports English, German
