Duct Limit Switch Common Application

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In: Building Automation Systems, Company News

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 our family! Since acquiring the product line we have made a number of improvements including technical support, more custom options and testing. For more information about the TC duct limit switches, read below. To purchase a duct limit switch or send a request for quote, please click here to contact our direct technical support team. Duct limit switches are used in HVAC systems to shut off heating, ventilation, and air conditioning equipment. They detect airRead More →

How to adjust a duct limit temperature switch

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In: Helpful Information

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 cover Adjust the dial to the desired set point Replace the cover & Install (Click here for installation instructions) When the temperature switch leaves our facility it is factory set at 125°F, but has an adjustable temperature of 100°F to 250°F. For further details on how to adjustable a TC duct limit temperature switch, continue reading below. If you require further assistance, click here to contact our direct technical support team. Our adjustable TC switchesRead More →

Fan-and-Limit-Thermostat-Switch

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In: Helpful Information, HVAC

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 research and development phase for a duct fan and limit control. Our duct limit switch responds to a change in temperature, opens the circuit shutting down (limit) the equipment. For more information about our duct limit switch, click here. Click here to speak with our direct technical support. Duct Limit Switches Senasys duct limit switches are commonly found in HVAC air duct systems. When warm air is flowing through the air duct, the limit switch’sRead More →

HVAC Equipment

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In: HVAC

Senasys manufacturers a large variety of temperature switches for HVAC systems: Bi-metal temperature switches Bulb and capillary thermostats Mechanical line voltage thermostats Switches found in HVAC systems are mechanical controls that are based on physics. More times than none, most HVAC systems have a requirement for these controls rather than an electronic type controller because failure modes are limited versus an electronic control. Rather than an electronic controller using inputs/outputs to communicate with the HVAC equipment, our temperature switches react to change in the environment causing the equipment mode to change as a reaction. For more information about the temperature switches Senasys offers to theRead More →

Duct High Limit Switches Control Exhaust Fans

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In: Building Automation Systems, HVAC

Many buildings require a high limit switch to prevent spread of fire or smoke. If the building uses an exhaust fan to maintain cooling, many building inspectors will require a limit control to be in place, such as the TC duct high limit switch. A duct high limit switch can sense temperature change up to 200°F. If a fire or smoke is present, to avoid the exhaust fan from spreading the fire and smoke throughout the building, the duct high limit switch senses the air temperature change to shut down the exhaust fan preventing spread of the fire and smoke. Continue reading below for moreRead More →

Adjustable Temperature Switch Manufacturer

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In: Helpful Information

Senasys, a leading sensor and switch manufacture, provides a variety of adjustable temperature switches for monitoring and controlling different heating elements. Duct Limit Control Bulb and Capillary Temperature Switches Line Voltage Thermostats Electronic Temperature Control Our adjustable temperature switches are made in the USA, 100% tested before leaving the factory and sold all over the globe. Looking for more information on which adjustable temperature switch fits your application best? Continue reading below for information on each kind of temperature switch Senasys manufactures, or click here to contact our technical support team.  Different Types of Adjustable Temperature Switches Senasys is a leading manufacturer of temperature switchingRead More →

TC Duct High Limit

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In: Building Automation Systems

A duct limit control is commonly used in HVAC systems to detect air temperature inside a duct. Although, these temperature controls can also be found in grain dryers. The duct limit control functions the same in the grain dryer, but rather than sensing a building air duct temperature, the limit control senses a change in air temperature inside the dryer. When the grain blocks the air flow temperature, the duct limit control senses the temperature change shutting down the system. The operator must clear the blockage and manually reset the duct limit control to resume operation. Our duct limit control is available in two differentRead More →