A recent inquiry from a manufacturer regarding temperature monitoring prompted us to consider the development of duct fan limit switches. This new market aligns seamlessly with our existing product line of multiple limit thermostats, both fixed and adjustable. Currently, our focus lies in Research and Development for various duct control options, expanding beyond our TC Series offerings.
Exploring New Designs
Our TC Series currently features limit thermostats that open on rise. However, we are exploring additional functionalities such as close on temperature rise option and a DPDT switch, enabling the opening and closing of two sets of contacts with temperature fluctuations. Learn more about our Firestat Limit Switch options here.
In response to the manufacturer’s needs, we developed a solution utilizing our snap disc thermostats. By leveraging our snap disc technology, Senasys successfully achieved the desired temperature range. This solution utilizes one snap disc to control the fan and another as a high limit.
Bimetal Snap Disc Thermostats
Senasys offers a diverse range of bimetal, fixed temperature snap disc thermostat switches, available in varying sizes to suit different applications. Our quality-engineered thermal sensors cater to major appliances, including HVAC systems, appliances, and industrial equipment. These switches come in automatic reset, hermetically epoxy sealed, manual reset, or single-shot configurations. For more information on our line of snap disc thermostats, visit the Senasys website.
Firestat Duct Fan Limit Switches
Our Firestat duct fan limit switches are designed to be installed in air ducts, ensuring safety by shutting down HVAC equipment in case of excessive temperatures. Featuring a helix bimetal element, these switches are essential in HVAC applications and Building Automation Systems. Adjustable duct limit switches allow operators to set temperature thresholds, while fixed temperature options are also available.
Dual Duct Fan Limit Switch Functionality
A dual fan/limit switch operates similarly to a standard limit switch but with the added capability of controlling fan activation. By monitoring air temperature within the duct, the switch can activate the fan to distribute hot air when the furnace is running and deactivate it when the temperature returns to normal. Additionally, it includes safety features to prevent overheating scenarios, requiring manual reset if triggered.
By venturing into the development of duct fan limit switches, we aim to provide comprehensive solutions for temperature monitoring and control in HVAC systems and beyond.
