WHAT TONAGE ON A CARRIER AIR HANDLER 40RC018300CD?

The Carrier air handler model 40RC018300CD has a cooling capacity of 1.5 tons. This is indicated by the "018" in the model number, which typically represents the cooling capacity in BTUs (18,000 BTUs, or 1.5 tons). If you need more specific information about its features or efficiency ratings, please check the technical specifications or the manufacturer's documentation.