Applies to:
Temperature Regulation (Single Stage)
Front Panel Thermostat
The cooking temperature is controlled by the front panel thermostat and monitored by its sensing bulb mounted just inside the vat. Various thermostats are availible, but all work on the same principle.
Internal Operation
The thermostat bulb is connected to the thermostat by a thin capillary tube. When the temperature rises, the fluid inside the bulb expands and pushes fluid through the tube into the control panel thermostat. When the vat temperature is lower than the thermostat setting, the TEMP light is illuminated and vat is being heated. When the temperature setting is reached, a switch inside the thermostat opens the circuit to the heat source and turns off the TEMP light when the vat starts to cool, the switch closes the circuit to the heat source.
Drain Microswitch
This interlock provides protection for the vat in the event an operator inadvertently drains the oil with the switch in the power position. The heat will automatically shut off when the drain valve is opened.
High Limit Temperature Control
The high limit temperature provides the safety feature of interrupting the heat if the temperature ever exceeds the safe operating limits. On electric models it must be manually reset when the vat cools.
