Manual S – Systems Design

Manual S – Systems Design

Determines how to select and size heating and cooling equipment to meet loads for a particular home, which are based on local climate and home construction specifics.

Manual S is a nationwide recognized standard.

icon-leaves  Which air conditioner should be installed?

icon-leaves  Which heat pump should be installed?

icon-leaves  Which furnace or boiler should be installed?

Equipment Sizing (Manual S)

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.

4 Reasons Why You Should Get a Manual S Done

1: Producing a Manual S before purchasing your equipment will prevent oversizing and/or under sizing of your equipment.


2: Starting in 2009, Manual S is a requirement in the International Residential Code (IRC).


3: When properly sizing your HVAC equipment before purchase, you are guaranteed to install the right system and lower your energy bills.


4: 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.


To schedule a Manual S Calculation or any other service, contact us!


(772) 263–3265

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