The duct limit switch operates a single pole single throw spst switch that opens when temperature rises.
Hvac fire stat.
No matter which style or model you choose all of the firestat duct fan and limit thermostat switches operate using the same physics.
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Tc duct high limit control or firestat.
The adjustable temperature plenum mount duct limit switch features a helix bi metal element that senses rapid increases in temperature such increases often caused by fire in a hvac duct system.
Quantity 2 in stock for same business day shipping if ordered before 4pm cdt.
Should temperatures in the duct exceed 130 degree f the switch opens shutting down the whole system so no fire or smoke can be spread by the fan.
A helix bi metal element senses a rapid temperature change.
The firestat hvac limit switch features a helix bimetal element that senses rapid increases in duct temperature such as those caused by fire.
Heating cooling ac vent.
Imperial 4 x 8 foot louvered vent with flexible aluminum ducting dryer vent kit white vt0271 a.
When the temperature changes the bi metal expands and triggers a snap action switch and either opens or closes a circuit.
Only 1 left in stock order soon.
Fits 6 x 12 register holes.
Please email email protected or call 888 727 8007 for lead time.
A freeze stat is a temperature sensing device for hvac that monitors a heat exchanger to prevent its coils from freezing freeze stats can be used on both refrigerant to air and refrigerant to liquid type heat exchangers and serve different purposes with similar goals for each.
These firestat hvac limit switches are installed in air ducts to shut down heating air conditioning and ventilation equipment when air temperature exceeds a pre set limit.
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These firestat limit switches are installed in air ducts to shut down heating air conditioning and ventilation equipment when air temperature in duct exceeds a pre set limit.
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The limit switch operates an spst switch that opens with a rise in temperature.
The duct high temperature limits feature a helix bimetal element that senses rapid increases in duct temperature such as those caused by fire.