Sep 17, 2023 · A 3-ton air conditioning unit typically requires about 400 CFM (cubic feet per minute) of airflow per ton of cooling capacity.

Aug 10, 2023 · How many BTU's are in a CFM? BTU is a measure of energy, while CFM (cubic feet per minute) is a measure of airflow. There is no direct conversion between the two because they …

Nov 11, 2022 · The size of the return air filter grill for a 3-ton HVAC unit typically depends on the airflow requirements, which is generally around 400-450 cubic feet per minute (CFM) per ton.

1 ton ac per cfm 400A ton of refrigeration is equal to the cooling power of one short ton (2000 pounds or 907 kilograms) of ice melting in a 24-hour period. The value is defined as 12,000 BTU per ...

Sep 5, 2008 · Does anyone know where I can find a Rule of Thumb on how many square feet of per ton of A/C for different commercial/Industrial applications? Specifically an older bowling alley. I've seen a …

Apr 27, 2012 · When I do my CFM calculations in HVAC Calc it recommends 400 (says it assumes 400 CFM for 1 ton and my load calc for AC comes to 1 ton). The maximum I can set in HVAC Calc is 700 …

Depends on the relative quality of the house (insulation, glass, etc) and location (Atlanta vs Maine). Most air-conditioners generate about 400 CFM per ton, but don't confuse Square Feet with ...

Jun 27, 2010 · At 50% relative humidity the temp-drop split should be (at 450-cfm per-ton) around 19-F or (at 350 to 400-cfm per-ton of cooling) around 20-F. What is the relative humidity in your home?

Mar 30, 2025 · The Armstrong Air Conditioner model SCU10A30A-3A has a tonnage rating of 2.5 tons. This model is designed for efficient cooling in residential applications. If you need further …

Nov 27, 2012 · We size the blower (normally) to what the A/C or H/P demands. If your homes A/C or H/P is a 3.5 ton, then that furnace does not have enough airflow. Note: The furnace blower will slow …