Given: A 150 horsepower centrifugal condensing unit is to be installed on the roof of an office building. The centrifugal unit is charged with trichlorofluoromethane. The unit does not have to be installed in a refrigeration machinery room if the unit

Given: A 150 horsepower centrifugal condensing unit is to be installed on the roof of an office building. The centrifugal unit is charged with trichlorofluoromethane. The unit does not have to be installed in a refrigeration machinery room if the unit