48Upper reservoirCheck Ball• The upper reservoir of the hot water tank assembly is an expansion area for the water to expand into asit is heated floating the check ball.• As the hot water is dispensed most the water is drawn from the reservoir by the venturi located in thewater inlet. The check ball will drop closing the top chamber so no air is drawn into the dispensed water.• When dispensing has been completed the water that is still in hot water (tube from the hot water tank tothe hot water outlet at the recess) drains back into the tank.• As the water drains back into the tank it floats up the check ball and collects the excess water in the topchamber.• This process minimizes drips from the hot water outlet in the recess.Hot Water TankNOTE: The hot water tank willonly be stocked as a completeassembly for service.

GE CFE29TS Manual