Load calculations manual j cacca instructors lesson plan 7 day 1 pre reading heating and cooling loads load calculation a systematic method of evaluation to estimate heat loss sensible and latent heat gain an account of the total heat flow into or out of a home depending on the time of year. Load calculation for residential winter and summer air conditioning manual j 7th edition air conditioning contractors of america on amazoncom free shipping on qualifying offers load calculation for residential winter and summer air conditioning manual j 7th edition. Our free easy to use hvac load calculator will help you determine the necessary thermal output capacity in btus of any residential building. A load calculation program based on manual j designed to be quick and easy to use disclaimer use this online load calculation program at your own risk this program has not been accredited by any organization and though much time 2011 ocean side heating air north myrtle beachsc . Formulas taken with permission from tables published by the air conditioning contractors of america acca in their seventh edition 1986 of manual j load calculation for residential winter and summer air conditioning mheas peak heating load estimates are not based on published values the program uses the