To find the tonnage of an AC compressor, you can check the unit’s nameplate or specification label, which typically lists the cooling capacity in BTUs (British Thermal Units). To convert BTUs to tons, divide the BTU value by 12,000, since one ton of cooling capacity equals 12,000 BTUs per hour. For example, if the compressor is rated at 36,000 BTUs, it has a tonnage of 3 tons (36,000 ÷ 12,000 = 3).
how to find out tonage
The ac compressorThe ac compressor
2.5
3.5
3.5 Tons
2 tons
4 tons
5 Tons
It's 2
3 1/2 ton
2 Ton
the compressor is located in the lower front drivers side wheelwell. This is also where you recharge your A/C.