The concrete is 4 inches thick and the polystyrene insulation is 2 inches thick on each side. Therefore, a 2-ton A/C unit will remove 24,000 BTU’s of heat per hour; a 3-ton A/C unit will remove 36,000 BTU’s per hour and so on. Size furnace not to exceed 140% of the heat load at winter design conditions (ACCA). Are Heating and Furnaces Measured In Tons Similar To Air Conditioners? Heating units are not measured in tons as A/C units. Btu and Tonnage Calculator. HVAC FORMULAS TON OF REFRIGERATION - The amount of heat required to melt a ton (2000 lbs.) The east and west walls each have two windows. Why is AC Tonnage Important? (mercury) = 1 psi WORK = Force (energy exerted) X Distance The word “tonnage” is used to describe the cooling capacity of an air conditioner. Air Conditioning Calculations Example A building, 35 feet wide and 73 feet long, is constructed with the type of concrete wall indicated in Figure 1. Note: This tool is provided strictly as a quick method of computing general size and value conditions. What amount of Btu and Tonnage should your air conditioner have in order to properly cool your home? This is equivalent to 12,000 Btu/hr. AC Unit Size Calculator accurately estimates the size of the central air conditioner unit you should install in your house. Its ok to do this. AC calculator uses your house size (square feet), climate zone, efficiency and equipment type (standard central air vs central heat pump) to show you exactly what size central air unit you need. The north wall has 6 windows and the south The heat loss and gain values are estimated using the procedures from the ACCA Manual J—Residential Load Calculation (Manual J) (Rutkowski 2006). The size (cooling capacity) of your air conditioner is determined by the amount of Btu (British thermal unit) and the Tonnage (12.000 Btu = 1 Ton). 12,000 BTU/hr. Some times you need the fan in a larger unit to handle big homes with an AC coil. of ice at 32°F 288,000 BTU/24 hr. Get the cost of 1 ton, 2 ton, 4 ton and 5 ton ac unit. Sizing air conditioners by phone is difficult but we can provide you with the tools to get you started. APPROXIMATELY 2 inches in Hg. Complete heat loss calculation at winter design conditions. One ton of cooling is the rate of heat transfer needed to freeze 2,000 lbs – or one ton – of water in 24 hours. Air Conditioning Calculations - Rule Of Thumb Calculating the cooling capacity needed for your room is a complicated process as there are many factors to consider. produced by the Air Conditioning Contractors of America (ACCA), which in turn references information provided by the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE). Relax a little—oversizing on condensing gas furnaces increases the efficiency. The industry rounded up to 12,000 Btu/h to reference 1-ton of air conditioner capacity. 3. However, there is a simple rule of thumb that you can use to estimate the required cooling capacity for your room. The actual electrical power used to 6. The following calculation spreadsheet is used to determine the capacity of room air conditioner: Size of Air Conditioning for Your Room, AC Size in A/C Cooling Load calculation and measurement When we talk about sizing an air conditioning appliance (tons of cooling, BTU/h or KW), we are specifying the cooling capacity (power) that needs to be moved by the appliance (air conditioner) from the indoor space to outdoors. Since most air conditioning units are provided in increments of ½ a ton (6,000 BTU/hour) sizes, this system should be quite close to the actual units that will be used. Design CFM 4" CFM 6" CFM 8" CFM 10" CFM 12" 60 6x4 60 4x6 90 4x8 120 4x10 150 4x12 90 8x4 110 6x6 160 6x8 215 6x10 270 6x12 120 10x4 160 8x6 230 8x8 310 8x10 400 8x12 150 12x4 215 10x6 310 10x8 430 10x10 550 10x12 180 14x4 270 12x6 400 12x8 550 12x10 680 12x12 210 16x4 320 14x6 490 14x8 670 14x10 800 14x12 240 18x4 375 16x6 580 16x8 800 16x10 950 16x12 270 20x4 430 18x6 670 … 2. 1. If you're still unsure which system size is right for you, or if you're having difficulty downloading the Air Conditioner Size Calculator , please e-mail us or call us toll free number at 1-855-634-5588.