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How Many Cfm Per Ton Of Cooling. A compromise on performance and efficiency. So a 4 ton unit will have 1600 cubic feet of air passing through the system every minute. For quite a few years Lennox model numbers were an exception to this rule. 400 cfm per ton of cooling is needed for normal comfort applications 500 cfm per ton of cooling for heat pump and high sensible heat applications and 350 cfm per ton of cooling for high latent heat applications.
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CFM is a ft 3 per minute unit. High latent heat loads use 350 cfm. For quite a few years Lennox model numbers were an exception to this rule. 2 ton of cooling is 800 cfm and so on. The cubic foot per minute or cfm per ton of air conditioning varies depending on application. Heating units are not measured in tons as AC units.
A compromise on performance and efficiency.
Approximately 400 cfm is required for normal use while 500 cfm is needed for high sensible heat situations. GasOil Furnace 1 CFM per 100 Btuhr output 64000 Btuhr output furnace 640CFM Electric Furnace 50 70 CFM per kW input 10kW furnace 10 x 70 700CFM 30kW furnace 30 x 50 1500CFM Electric Air-conditioning 400 CFM per ton 30000 Btuhr cooling 3000012000 25tons 25 x 400 1000 CFM Heat Pump 450 CFM per ton 30000 Btuhr cooling. For quite a few years Lennox model numbers were an exception to this rule. 3 GPMton 10 rise Chiller Input. 24 GPMton 10 rise Condenser Water. So a 4 ton unit will have 1600 cubic feet of air passing through the system every minute.
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10 tons would be 4000 cfm or could there be the 10 TR with 2000 cfms. CFM is a ft 3 per minute unit. 400 CFM per ton is a safe average purpose air flow standard. Sensible heat directly affects the temperature of the room while latent heat does not affect temperature because it causes a change in state. This will vary on the application.
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AC Capacity 600 sq ft 00016 tonssq ft 1 Ton. 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 18x8 930. In short if youre looking to cool down a 600 sq ft area you would need. Step 3 Divide your British thermal units number by 12000 to convert to tons. You need 350 to 400 cfm per ton 12000 btu of cooling.
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The cubic foot per minute or cfm per ton of air conditioning varies depending on application. For example a room that requires 513500 British thermal units per hour to cool would require a 43 ton air conditioning system. AC Capacity 600 sq ft 00016 tonssq ft 1 Ton. What is the logic of this. 10 tons would be 4000 cfm or could there be the 10 TR with 2000 cfms.
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For quite a few years Lennox model numbers were an exception to this rule. CFM is a ft 3 per minute unit. For quite a few years Lennox model numbers were an exception to this rule. You need an 80 CFM airflow for 300 sq ft standard room and 2 ACH. Nominal CFM would be 400 per ton.
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If 400 cfm of air and a delta T of 20 degrees is achieved this is equal to only 400X20X1088640 btuh. You need 350 to 400 cfm per ton 12000 btu of cooling. Heres a neat CFM calculator that calculates CFM based on room area ceiling height and the number of air changes per hour ACH. You need an 80 CFM airflow for 300 sq ft standard room and 2 ACH. Probably left over from the early days of 6 and 8 fins per inch evap coils.
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You need 350 to 400 cfm per ton 12000 btu of cooling. 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 18x8 930. A 3-ton AC unit will remove 36000 BTUs per hour and so on. 2 ton of cooling is 800 cfm. 3 GPMton 10 rise Chiller Input.
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A 3-ton AC unit will remove 36000 BTUs per hour and so on. A 3-ton AC unit will remove 36000 BTUs per hour and so on. A compromise on performance and efficiency. Most Efficient Water Cooled Chillers. GPM X 500 X Temp Rise Typical chilled water system design flow rates 24 GPM per ton assuming 10oF difference between entering and leaving temperatures Evaporation rate of cooling tower condenser water 3 GPM per 100 tons Condenser water flow rate requirement 3 GPM per ton BTU per ton of cooling 12000 BTU 1 ton.
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Chillers Pumps Towers9-10 kWton. Nominal CFM would be 400 per ton. Heres a neat CFM calculator that calculates CFM based on room area ceiling height and the number of air changes per hour ACH. 2 ton of cooling is 800 cfm. Step 3 Divide your British thermal units number by 12000 to convert to tons.
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What am I missing here besides a college education. GasOil Furnace 1 CFM per 100 Btuhr output 64000 Btuhr output furnace 640CFM Electric Furnace 50 70 CFM per kW input 10kW furnace 10 x 70 700CFM 30kW furnace 30 x 50 1500CFM Electric Air-conditioning 400 CFM per ton 30000 Btuhr cooling 3000012000 25tons 25 x 400 1000 CFM Heat Pump 450 CFM per ton 30000 Btuhr cooling. What is the logic of this. You need 00016 tons of AC per square foot. Step 3 Divide your British thermal units number by 12000 to convert to tons.
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Therefore a 2-ton AC unit will remove 24000 BTUs of heat per hour. CFM requirements for summer air conditioning change with varying heat loads. Heating capacity is referred to in 1000s of BTU output per. 33479 BTUhr 98 kW. Thats why we need to divide the total volume by 60.
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The rule of thumb is 400 cfm per ton so how does this work. A 3-ton AC unit will remove 36000 BTUs per hour and so on. Chillers Pumps Towers9-10 kWton. 2 ton of cooling is 800 cfm. GPM X 500 X Temp Rise Typical chilled water system design flow rates 24 GPM per ton assuming 10oF difference between entering and leaving temperatures Evaporation rate of cooling tower condenser water 3 GPM per 100 tons Condenser water flow rate requirement 3 GPM per ton BTU per ton of cooling 12000 BTU 1 ton.
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High latent heat loads use 350 cfm. Probably left over from the early days of 6 and 8 fins per inch evap coils. CFM is a ft 3 per minute unit. For example a room that requires 513500 British thermal units per hour to cool would require a 43 ton air conditioning system. Heat pumps typically require 400 cfm per ton in cooling mode and in heating mode.
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For quite a few years Lennox model numbers were an exception to this rule. CFM requirements for summer air conditioning change with varying heat loads. These are the approximate amounts of air that should be moving through evaporators for three common applications. A compromise on performance and efficiency. A compromise on performance and efficiency.
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2 ton of cooling is 800 cfm and so on. So a 4 ton unit will have 1600 cubic feet of air passing through the system every minute. Hence 480060 80 CFM. GPM X 500 X Temp Rise Typical chilled water system design flow rates 24 GPM per ton assuming 10oF difference between entering and leaving temperatures Evaporation rate of cooling tower condenser water 3 GPM per 100 tons Condenser water flow rate requirement 3 GPM per ton BTU per ton of cooling 12000 BTU 1 ton. CFM is a ft 3 per minute unit.
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300-600 ft 2 ton. In short if youre looking to cool down a 600 sq ft area you would need. Therefore a 2-ton AC unit will remove 24000 BTUs of heat per hour. What am I missing here besides a college education. The cubic foot per minute or cfm per ton of air conditioning varies depending on application.
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The cubic foot per minute or cfm per ton of air conditioning varies depending on application. A rule of thumb in air conditioning work is that 400 cfm of air is equal to 1 ton. You need an 80 CFM airflow for 300 sq ft standard room and 2 ACH. Most Efficient Water Cooled Chillers. 2 ton of cooling is 800 cfm.
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CFM requirements for summer air conditioning change with varying heat loads. Therefore a 2-ton AC unit will remove 24000 BTUs of heat per hour. 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 18x8 930. Sensible heat directly affects the temperature of the room while latent heat does not affect temperature because it causes a change in state. For example a 1200 cfm blower on an air handler could handler up.
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400 CFM per ton is a safe average purpose air flow standard. Once tonnage is identified multiply the tons by 400 to get total system typical cfm required. If 400 cfm of air and a delta T of 20 degrees is achieved this is equal to only 400X20X1088640 btuh. Step 3 Divide your British thermal units number by 12000 to convert to tons. CFM is a ft 3 per minute unit.
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