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How do you find the tonnage of a unit?
Simply divide the BTUs by 12,000 to calculate the tonnage of your unit. For example, if your air conditioner is 36,000 BTUs, you have a 3-ton unit. Some manufacturers bury tonnage or BTU information in their model numbers. Look for an even, two-digit number between 18 and 60.
What is actual capacity of air conditioner?
actual capacity and AHRI de-rating.) A 4 ton air conditioner is one that can remove 48,000 BTUs of heat per hour from the house. For most people, though, 4 tons means 8000 pounds. (A BTU is a British Thermal Unit, approximately the amount of heat you get from burning one kitchen match all the way down.)
How do I know what size evaporator coil I need?
If the evaporator must move 400 gallons per minute: 14 x 400 = 5,600. Multiply the answer by 500: 5,600 x 500 = 2,800,000. This answer is the evaporator’s size, measured in BTUs per hour. Divide the answer by 12,000: 2,800,000 / 12,000 = 233.33.
What is the cooling capacity of 1 ton AC?
1. Remember – 0.75/0.8 Ton AC delivers 9000-9500 BTUs, 1 Ton AC delivers 12000 BTUs, 1.25 Ton AC delivers 15000 BTUs and 1.5 Ton AC Delivers 18000 BTUs.
What does 1.5 ton AC mean?
A ton of refrigeration is defined as the rate of heat transfer that results in the melting of 1 short ton (2,000 Pound or 907 kg) of pure ice at 0 C (32 F) in 24 hours. The value is defined as 12,000 BTU per hour, or 3517 watts. 1.5 Ton AC= 1.5 x 12000 = 18000 BTU/hr.
What does tonnage mean in AC?
In the HVAC field, a ton, or tonnage, refers to the cooling capacity of an air conditioner. Tonnage is measured in BTUs or “British Thermal Units.” (A BTU is equivalent to the amount of energy (heat) needed to raise one pound of water 1°F at sea level.)
Why do we calculate AC tonnage?
The use of tons to measure cooling capacity comes from this time. A ton refers to the amount of heat it takes to completely melt a ton of ice. The capacity of an air conditioner refers to the amount of heat it can remove. Rounding up 11,917 Btu/hr gives you 12,000 Btu/hr, which is one ton of air conditioner capacity.