Sizing Roof Top Units

Rooftop units are connected to ductwork which provides a defined route for the conditioned air to travel along.

Sizing roof top units.

Since 12 000 btus equal 1 ton an air conditioning unit rated at 3 tons can produce. Combining industry leading efficiency with fast easy installation and service lennox continues to offer reliable systems that deliver exceptional comfort in commercial buildings. Select johnson controls rooftop units are smart equipment enabled meaning they already have controls embedded and can seamlessly connect to a controls system and self discover other smart equipment. Purpose of a rooftop unit.

The purpose of a rooftop unit is to distribute conditioned air within define areas of a building. The carrier weatherexpert packaged rooftop unit series provides comfort and energy efficiency never seen before. Most rooftop unit manufacturers provide tables or computer programs to help engineers select units. Though btus are important most larger air conditioning units are rated in tons.

What size rooftop unit will meet the load and deliver the desired supply air temperature. Lennox packaged rooftop units represent some of the most innovative technology in the market. Now in our last tutorial we looked at air handling units or ahu s. The btu measurement describes the size of the unit or units in tons.

Besides meeting the space cooling load sensible plus latent the unit must cool outside air and overcome fan heat.