What is a Load Calculation for your home?

A load calculation for your home analyzes the orientation, construction and size of the home to ensure that the air conditioner or heat pump selected will meet your heating and cooling loads.  This is a vital process when upgrading your existing air conditioner or heat pump and is required by the Florida Building Code.  The reason this calculation is a vital step to the replacement process is if the unit is undersized then it will not be able to keep up with the heat gain on the hottest months of the year or the heat loss on the coldest days of the year.  Conversely, if the unit is oversized then it will not run long enough to dehumidify the home properly (in this case, bigger is not better!).

The load calculation method we use at Atlas Air Conditioning Services is the ACCA (Air Conditioning Contractors of America) Manual J Residential Load Calculation.  This method takes into account the geographical location of the home, the directional orientation of the home, the area and volume of conditioned space, the construction of the exterior walls, roof, floor, windows and doors to compute the heating and cooling loads for the residence.  Once this is computed, we then size the air conditioner or heat pump using the ACCA Manual S Residential Equipment Selection.  If new ductwork is required then it is sized using ACCA Manual D Residential Duct Systems and ACCA Manual T Air Distribution Basics for Residential and Small Commercial Buildings.  By using these tools, we ensure that our Orlando-area customers get the best system they can for their home when a replacement unit is needed.  If you have any questions concerning load calculations, please feel free to contact us.