A one-story 40ft x 40 ft dining area restaurant is located at Miami  ( Mean Daily Range 15 degrees Fahrenheight). The kitchen is facing south and separated from the customer space by a partition that goes up to the ceiling (U = 0.32), and its temperature is 85 deg. F. The East wall of the restaurant face to a non-conditioned building. The ceiling height is 10 ft.

Roof Construction: Flat Masonry. U = 0.112

West and east walls construction: 13-in solid brick, no plaster. U = 0.25

North wall construction: Solid masonry. U = 0.27

Floor construction: Concrete slab

Windows: Two 6 ft x 6 ft single glazed windows protected with awnings, not openable, facing north

Front doors: Two, 3 ft x 7 ft, facing north

West door: One, 4 ft x 7 ft

Doors  construction: Wood, U = 0.19

Outdoor design conditions: T (DB) = 91 Deg.F; T (WB) = 79 Deg. F

Indoor design conditions: T (DB) = 75 Deg. F; T (WB) = 62.5 Deg. F

Occupancy: 48 customers, one cashier, and 6 waiters

Lights: Fluorescent at 2 Watts per sq. ft.

Determine the necessary cooling capacity in Tons.