Rack Saver Electronics - ICI Custom Parts Inc The "Rack Saver Model 106" was an end table limit switch designed for use on dish machines which start with a either a rotary or toggle-type switch. Model 107 is designed for push-button machines. A sensor, which can be located anywhere on the "clean" table, causes the dishmachine to shut down when a dish rack reaches its location.[PDF] Controller for Power Unit Technical Bulletin Controller for Power Unit Technical Bulletin No. 23 Page 2 of 5 Endless Pools Inc. 10/10/06 The following is a modified wiring diagram for the Circuit Saver. These are 4 wires that need to be run between the AS-5TD controller and the Raypak Electric Heater. Please note that the ground wire is not shown between the controller and heater.