Sizing Roof Top Units

Since 12 000 btus equal 1 ton an air conditioning unit rated at 3 tons can produce.

Sizing roof top units.

Combining industry leading efficiency with fast easy installation and service lennox continues to offer reliable systems that deliver exceptional comfort in commercial buildings. A btu or british thermal unit is the amount of heat needed to heat 1 pound of water one degree fahrenheit. Weatherexpert units available in 3 23 ton sizes use multi stage compressors a single refrigerant circuit and sav staged air volume logic to provide part load efficiencies that lead the industry. Besides meeting the space cooling load sensible plus latent the unit must cool outside air and overcome fan heat.

What size rooftop unit will meet the load and deliver the desired supply air temperature. The purpose of a rooftop unit is to distribute conditioned air within define areas of a building. Most rooftop unit manufacturers provide tables or computer programs to help engineers select units. The carrier weatherexpert packaged rooftop unit series provides comfort and energy efficiency never seen before.

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. Rooftop units are connected to ductwork which provides a defined route for the conditioned air to travel along. Lennox packaged rooftop units represent some of the most innovative technology in the market.

Rooftop units in the 5 pro core 20 and 40 series are smart equipment enabled or smart equipment optional.