Water Detection System

The software part numbers for controllers WITHOUT the water detect feature are:

The software part numbers for controllers WITH the water detect feature are:

The purpose of the Water Detection software is to prevent water from boiling or from coming under pressure in the fryer. Under normal operation, the fryer begins to generate pressure (solenoid closes) and heats at temperatures that would exceed the boiling temperature of water only when the fryer enters a "cook" cycle. As detailed below, the software works by preventing the fryer from leaving the "melt" cycle and entering a "cook" cycle if the software detects that the vat is filled with water (and not oil).

Below is a summary of the software operation:

When turned on, the fryer measures the temperature of the medium (usually oil) in the vat. If the temperature of the medium in the vat is below the "melt" cycle exit temperature (215° F), then the fryer will enter the "melt" cycle. During the "melt" cycle, the solenoid remains open and does not allow the vat to pressurize.

The "melt" cycle also heats the medium using a pulse rate that prevents water from boiling or allow oil to melt. If the detected medium temperature in the vat is below 200°F, then the fryer will heat with an 18/40 pulse rate (18 seconds on, 22 seconds off) for electric units and 25/40 (25 seconds on, 15 seconds off) for gas units. Once the medium temperature reaches 200° F, the pulse rate is reduced to 5/40 (5 seconds on, 35 seconds off) for electric units and to 8/40 (8 seconds on, 32 seconds off) for gas units. These reduced pulse rates do not provide sufficient energy to allow water to reach a boiling point (generally, 212° F) in the vat, but would not prevent oil from reaching 215° F.