What is the tonage of the Carrier model number 38yrao42310?

The Carrier model number 38YRAO42310 refers to a unit with a nominal cooling capacity of 3 tons. This is indicated by the "423" in the model number, which typically denotes a capacity of 42,000 BTU/h, equivalent to 3.5 tons. However, for precise specifications or additional details, it's best to consult the manufacturer's documentation or website.