73394301 | TSTAT LIMIT-BULB | Daikin-McQuay

TSTAT LIMIT-BULB: 73394301 - Daikin-McQuay Limit-bulbs function by measuring temperature by employing a bi-metallic element. When the element is exposed to a temperature increase, it will expand, creating an electrical circuit. At this point, the voltage will be conducted from the controller to the bulb. The resulting increase in temperature generates a bimetallic coil that moves and acts against the calibrated spring. This action then triggers the normally open contact to close, creating an electrical path that connects the controller to the burner. Our HVAC supply store Co. products are made with the highest quality materials to ensure that they will last for years to come. We offer the best prices and fast shipping and provide excellent customer service to help you find the right product for your needs.