Capacity Conversion Table

Hello, I would like to check with you guys what is the proper method of calculating the capacity of an air-con unit. Please see below for the 2 different methods that I would like to check on, and the source that I obtained the calculations from.

Source: Internet conversion table :
1 Ton = 12000 BTU/h = 4.72 Horsepower = 3.52 kW


Source: A few aircon servicing/repair companies
1 Ton = 12000 BTU/h = 1.33 Horsepower = 0.99 kW

Which is correct? Thanks

The first one is correct.

If you need a universal converter then please try this one...

http://www.katmarsoftware.com/uconeer.htm

Second one is probably comparison from compressor refrigerant capacity to motor power consumed by compressor!