From Wikipedia, the free encyclopedia. A ton of refrigeration (TR or TOR), also called a refrigeration ton (RT), is a unit of power used in some countries (especially in North America) to describe the heat-extraction capacity of refrigeration and air conditioning equipment.

Electric motor driven chillers are rated in kilowatts per ton cooling.

1. kW/ton = 12 / EER.
2. kW/ton = 12 / (COP x 3.412)
3. COP = EER / 3.412.
4. COP = 12 / (kW/ton) / 3.412.
5. EER = 12 / (kW/ton)
6. EER = COP x 3.412.

3 Star Split AC Electricity Consumption: 1.5 Ton Split AC – 1.56 kW per hour (Approx 1.6 unit per hour) 2.0 Ton Split AC – 1.93 kW per hour (Approx 1.9 unit per hour)

In English terminology, 1 TR is 3024 KCal. Learn How the value of 3024 KCal or 3.517 KW derived…..!! One short ton = 2000 lb, Heat extracted = 2000 x 144/24 hr = 288000 Btu/24 hr = 12000 Btu/hr = 200 Btu/min, 1 ton refrigeration = 200 Btu/min = 3.517 kJ/s = 3.517 kW = 4.713 HP .

400 is the standard CFM per ton, but you can go from 350-450 and still be in a normal range.

Ton of Refrigeration (TR): Ton of Refrigeration (abbreviated as TR) is an important historical unit of refrigeration capacity. Originally 1 TR was defined as the rate of heat transfer required to make 1 short ton (2000 lbs) of ice per day from water at 0oC.

Short for cubic feet per minute, CFM or CFPM is the air flow measurement used when describing how much air a fan or computer case fan is capable of distributing. The higher the CFM the more air the fan is capable of distributing, 70 CFM or more is a good starting value.

Good CFM ranges from 4,000 to 5,000. Better ranges from 5,000 to 6,000. Best is over 6,000.