how many tons should my air conditioner be?
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If your home is 2000 square feet, you can calculate your HVAC needs the same as you would for a 1600 square foot home. Assuming one ton of cooling capacity can cool 400 square feet of your home, you'll need about 5.0 tons of air conditioning capacity. Multiply this by 12,000 BTUs, and you'll get 60,000 BTUs.
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If your room size is between 80 and 120 square feet in area, you can effectively cool the room with a one ton air conditioner. A 1.5 ton AC will be adequate for a room size ranging from 120 to 190 square feet and you may need a 2 ton air conditioner for a room size ranging from 190 to 300 square feet.
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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. Melting this amount of ice requires 286,000 Btu (British thermal units). ... Rounding up 11,917 Btu/hr gives you 12,000 Btu/hr, which is one ton of air conditioner capacity.
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Budget air conditioners range from 5,000 BTU, which can handle about 150 square feet, to 12,000 BTU, enough to cover about 550 square feet. Naturally, air conditioners with higher capacities have higher price tags.
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One ton of refrigeration is equal to 3024 kilo-calories per hour. This is 12,000 BTU/ h divided by 2.204 (pounds per kilogram) divided by 1.8 (°C to °F). Most residential air conditioning units range in capacity from about 1 to 5 tons of refrigeration or 3.5 kW ~ 17.5 kW, or 12,000 Btu/h ~ 60,000 Btu/h.
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An average 5,000 BTU air conditioner uses 500W of energy running at full capacity. There are 3 ways how to check how many watts does your air conditioner use: Check the specification sheet for Watts.
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Now if you want to reduce theoretical concepts down to rules of thumb, the standard volume flow rate per unit of power in the HVAC industry is 400 cfm per ton, and a ton is 12,000 BTU's per hour, so 400 cfm per 12,000 BTU's per hour of cooling capacity.
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A two-ton unit would be rated at 24,000 Btu per hour. Typical residential central heating systems provide up to 5-tons of cooling.
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The possibilities on residential units range from 18 to 60. Divide the number by 12 (which represents 12,000 Btu/hr, or one ton of cooling capacity) to get your AC unit's tonnage. If you don't want to do the math, here are the numbers you're looking for and their corresponding tonnage: 18 = 1.5 tons.
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As a general rule of thumb, it's good to have at least 12-inches of air conditioner clearance on all sides of your AC unit. “I live by a rule of 1-foot on all sides as the absolute minimum for shrubbery and the back of the unit facing the house,” says Keith Hill, technical support manager at Minnesota Air.
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There are some general guidelines you can use based on the square footage of your home to get a ballpark estimate of the unit size you may need. For example, you can roughly estimate one-ton per 750-1000 square feet, so a 2,000 square foot home may require a 2.0 – 2.5-ton unit.
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One ton is equal to the amount of heat required (288,000 Btu) to melt one ton of ice in a 24-hour period. A one-ton air conditioner is rated at 12,000 Btu per hour (288,000/24). A two-ton unit would be rated at 24,000 Btu per hour.
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Window air conditioners typically have a cooling capacity ranging from 5,000 to 12,500 British thermal units (Btu/hr.). As a rule of thumb, an air conditioner needs 20 Btu for each square foot of living space.
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The standard rule is that a portable air conditioner unit needs approximately 20 BTU for each square foot of floor space you cooling.
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You can safety assume that this 2 Ton air conditioner system contains approximately 6 pounds of Freon total in a normal 25 foot line set installation with a matching coil. Add 2 pounds to the outdoor unit specification will cover most units.
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1.5 Ton Split AC – 1.7 kW per hour (Approx 1.7 unit per hour) 2.0 Ton Split AC – 2.21 kW per hour (Approx 2.2 unit per hour)
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What Is a Ton and What Does it Mean for Air Conditioning? A ton is the cooling capacity of an air conditioning system. One ton is equal to the amount of heat required (288,000 Btu) to melt one ton of ice in a 24-hour period. ... A two-ton unit would be rated at 24,000 Btu per hour.