Thanks to Owner-Manuals.com! This manual was exactly what I needed. As Amana was purchased by Maytag and later by Whirlpool, there was no way to receive it from their websites. I was lucky to find this resource.
A comprehensive Operating and Service Manual. All schematics are complete and easy to read. The PCB drawings and complete parts list are very helpful. I would definitely recommend this manual.
Text excerpt from page 18 (click to view)
Installation
Water drainage
To protect the dishwasher against water damage it is equipped with a water safety system. In the event of a fault the drain-pump starts automatically and the remaining water inside the dishwasher is pumped out. The water safety system also works when the dishwasher is switched off. However the dishwasher must be connected electrically. Place the discharge hose over the sink as illustrated. It must not at any point be higher up than 75 cm over the surface which the dishwasher is standing on. If it runs higher, operation of the dishwasher might be impaired. It is also important to ensure that the inside diameter of the hose is not less than 13 mm at any point. If the discharge hose is too long, it can easily be cut to the right length. 1. Cut the hose to a suitable length, using a sharp knife. 2. Fit the elbow supplied onto the end of the hose.