Apps in this category may contain mild or occasional cartoon, fantasy or real-life violence, as well as occasional or mild adult, sexually suggestive or horrifying content and may not be suitable for children under 9 years of age.

12+

Apps in this category may contain occasional mild indecent language, frequent or intense cartoon or real-life violence, minor or occasional adult or sexually suggestive material, and simulated gambling, and may be for children under 12 years of age.

17+

You must be at least 17 years old to access this App.

Apps in this category may contain frequent and intense offensive language; Frequent and intense cartoon, fantasy or realistic violence: frequent and intense adult, scary and sexually suggestive subjects: as well as sexual content, nudity, tobacco, alcohol and drugs, may not be suitable for children under 17 years of age.

DALC Captures d'écran

iPad

iPhone

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.

Quoi de neuf dans la dernière version 2.1

Last updated on Nov 24, 2014

Vieilles 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

Version History

2.1

Nov 24, 2014

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

1.1

Apr 12, 2011

iPhone home button now resets application

1.0

Mar 31, 2011

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