A Class 1 occupancy has a bathroom that is served by a direct air conditioning system. The bathroom is the smallest humanly occupied space in the residence. The bathroom measures 6`x 8`x 8` ceiling. What is the maximum amount of R-22 tha may be used in this air conditioning system based on the room size?

A Class 1 occupancy has a bathroom that is served by a direct air conditioning system. The bathroom is the smallest humanly occupied space in the residence. The bathroom measures 6`x 8`x 8` ceiling. What is the maximum amount of R-22 tha may be used in this air conditioning system based on the room size?