Duct High Limit Temperature Control
Many buildings have an exhaust fan installed within their duct space to maintain cool temperatures inside the building. Once the air temperature reaches a pre-determined set point, a fan switch powers on an exhaust fan to keep the building from overheating.
If a fire is present within the system, the fan will feed the flames and the building will be up in smoke quickly. By installing a duct high limit temperature control, this risk can be reduced. The high limit switch is installed within the exhaust system, and when higher air temperature is reached due to fire the limit switch will shut the exhaust fan down preventing the spread.
TC Duct High Limit temperature controls Specifications
The duct high limit switch features a helix bi-metal element that senses rapid increases in temperature. The switch is a single pole, single throw (SPST) device that opens when temperature rises between 100°F to 250°F. For more information about the TC duct high limit switch, click here to view the product details.
The main safety benefit of installing a Firestat limit switch into your duct system is to prevent the spread of fire and smoke in the event of a building fire. [...]
Our Firestat switches use a bimetal coil to open a set of contacts when they heat up. However, you may be wondering what these contacts look like, and how they [...]
We sell to a few larger companies, so we though we would highlight one today. The company we are looking at today is Dynacon. Dynacon is an HVAC distributor located [...]
If you’ve looked at temperature switches before, you’ve most likely heard the term “Bimetal”. But what does that mean? Well, I’m glad you asked. The way Bimetal works is that [...]
Our Firestat switches come in both adjustable and fixed temperature models. However, you may not know what temperature you need in the first place. The temperature you’ll need your Firestat [...]
Duct high limit switches are simple devices, so there isn’t much that can be done to stand out among competitors. However, we consistently beat out the competition when it comes [...]
Senasys acquired the CEMCO TC duct limit switch product line in 2014. Many of our other switching products sense air or surface temperature making this product line fit well within [...]
The TC duct limit temperature switch line manufactured by Senasys is an adjustable temperature switch that is a great solution for HVAC systems. Adjusting the switch is simple: Remove the [...]
There are two main types of temperature switches used in HVAC systems, fan switches and limit switches. Senasys currently only manufactures a duct limit switch, and we are in the [...]
When mounting a duct limit switch, it’s best if the bi-metal element reaches the middle of the air duct. The air in the middle of the duct is often a [...]