Raypak 009554F M/R Limit Switch 40°F-180°F

The Raypak 009554F is a 40-180 degree Fahrenheit combo Mode/Reset limit switch developed for use with Raypak pool heaters. A temperature-sensitive element in the switch reacts to variations in the heater's water temperature. In order to avoid overheating and potential equipment damage, the switch automatically turns off the heater when the water temperature reaches 180°F (82°C). The heater can restart its function if the temperature drops below a preset threshold, which is often marginally below 180°F. This triggers the switch to automatically reset. Additionally, certain versions may have a manual reset button that enables users to override the automated reset feature and reset the switch following a high-limit shutdown. The automated high-limit shutdown function aids in avoiding overheating and any risks that can arise from extremely hot water temperatures.