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Ships within 48 hours · Estimated delivery Sep 20 - Sep 25
and TFRB actuators
This OP420 CL300 model is calibrated to open the circuit (cutout) at 425 PSI and close the circuit (cut-in) once pressure drops to 325 PSI
If the switch has 'popped
preventing the ignition sequence and protecting the unit from overheating or carbon monoxide buildup caused by inadequate ventilation
Signal Accuracy: Facilitates tight modulation for optimized head pressure management and energy efficiency
Lennox 52M40 Pressure Switch Els PW 17895 and TFRB actuatorsAs a field tested Lennox 52M40 Pressure Switch, this genuine OEM component is a critical safety interface for residential and commercial gas furnaces. Engineered for precise pneumatic monitoring, this SPST furnace pressure switch features a single pole single throw configuration designed to verify inducer motor performance. The integrated 1 4" barb connection allows for a secure, airtight fit with standard pressure tubing, ensuring the system
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