The evaporator sprays water on the heated core. The water evaporates removing heat. The water vapor is vented overboard. Ammonia boiler Freon coolant loops pass through a tank of pressurized ammonia. Heat released from the freon causes the ammonia to boil.
Ammonia vapor is dumped overboard.
The cabin heat exchanger also controls the cabin temperature. The orbiter has internal fluorescent floodlights that illuminate the crew compartment. The orbiter has external floodlights to illuminate the cargo bay. Finally, the control panels are lighted internally for easy viewing. Food Food is stored on the mid-deck of the crew compartment.