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A Manual S is a complete equipment selection calculation and report expressed in Sensible and Latent BTUH. The Manual S certifies that your selected Air Conditioning & Heating equipment meets the criteria previously calculated by the Manual J (Heat Load Calculation) & Manual D (Duct Design). Having a Manual S performed is mandatory in most US states to obtain permits for an air conditioning system installation.
Manual S is a nationwide recognized standard
Producing a Manual S before purchasing your equipment will prevent oversizing and/or under sizing of your equipment.
Starting 2009, Manual S is a requirement in the International Residential Code (IRC)
When properly sizing your HVAC equipment before purchase, you are guaranteed to install the right system and lower your energy bills.
Manual S Calculation, can answer all your heat pump sizing & air conditioning sizing questions with precision. Rest assured that after having a Manual S Calculation, your Air Conditioning & Heating System will be the sized just right.
The Manual D is a complete schematic drawing of the duct system including locations and sizes of trunk-lines, branch ducts, outlet registers, and inlet grilles.
Getting a complete Manual-D done on your property plans is the best way to ensure that your heating and cooling system will deliver maximum comfort at high efficiency. It will guarantee that your system will be able to deliver the correct amount of air to each room of the house.