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Anonymous
the 48 in the model number tells you it is a 4 Ton unit.
12,000 BTU in 1 Ton
018 = 1 1/2 Ton
024 = 2 Ton
030 = 2 1/2 Ton
036 = 3 Ton
042 = 3 1/2 Ton
048 = 4 Ton
060 = 5 Ton
etc..
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