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It protects sensitive controller outputs from back-EMF and high-amperage draw
The System Sensor ST-10 is a heavy-duty metal sampling tube engineered specifically for HVAC duct smoke detection in large-scale commercial air handling systems
the 023Z5008 is a liquid line filter drier designed for one-way flow
or the internal diaphragm of the furnace pressure switch has failed
preventing upstream component failure
Lennox 71G15 Vent Switch It protects sensitive controller outputsProfessional grade Lennox 71G15 components are essential for maintaining the operational safety of residential and commercial furnaces. This 120V blocked vent switch is a specialized thermal safety control engineered to monitor flue gas temperatures and detect dangerous obstructions in the vent system. Calibrated to actuate at 280F, this manual reset rollout switch effectively cuts power to the gas valve or ignition control if exhaust gases back up
US$ 39.99
US$ 34.00
US$ 58.00
US$ 190.00
US$ 44.95