The Manual J is used for determining heat gain and heat loss on a building, while the Manual S is used for proper equipment selection using the Manual J calculations. It is important for air conditioning equipment to be properly sized because undersized equipment will not sufficiently cool your building, and oversized equipment will lead to humidity issues that will cause discomfort. We look at the manufacturers performance data to properly size the equipment needed to heat and cool the structure within code requirements.

Doing the Manual S can be tedious and time consuming so contact Designair of Texas LLC to get your Manual S today!