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For over ten years, Norm Belanger has been using Wrightsoft to calculate his heating and cooling loads. Overall, he feels that it has helped him tremendously and he can provide a service to his customers by installing properly sized systems.

"If more contractors would use load software on every job, it would help our industry"
–Norm Belanger


light commercial, load calculator

Certified ACCA Manual N 5th Ed Load Calculations


ACCA's latest update of the Manual N light commercial method, Wrightsoft's Right-N is a simple, clear, logical, yet very sophisticated program to help you compute your calculations quickly and accurately.

Bottom Line.

You can literally do a certified Manual N calculation in minutes!

More Right-N Information
  • Using Right-N’s drag and drop feature, you can combine zones into block loads called Units, and Units into Totals. With this powerful, instant tool, you’ll represent single fans with VAV boxes, unitary equipment in zones, or even central equipment with air handlers.
  • As you drag and drop, you can watch the block loads change, providing a very powerful way for you to balance equipment loads!
  • A technically complete program, with advanced features powerful enough to compute loads for 98% of the commercial buildings worldwide.
  • New Features include:
    • True pull down menus
    • Graphic pie charts to illustrate load breakdowns
    • Custom reports
  • Impress commercial building owners with your color pie charts showing where the heating and cooling BTUs (kW) in the loads are going. These reports are created at the click of a button, and make it easy to see details like glazing loads versus infiltration loads. This professional presentation will set you apart from your competition!
Right-Suite Universal 2017 : New Features

Weather Data
► 2013 ASHRAE weather data
► ACCA addendum E weather data update : Microclimate data for CA, AZ, HI, NV
► F280 2012 weather data
ASHRAE 62.2 Ventilation
► Includes both 2010 and 2013 standards 
► Calculates minimum fresh air needed per home
Energy Star HVAC Report Version 8
► Integrated Energy Star Certified Home Version 3 for demonstrating compliance
Additional Information

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