it functions as a critical vent limit switch that interrupts gas flow if hazardous venting conditions or overheating are detected

a different H-series model number is necessary

0 Cv orifice

the R42640-001 mitigates common furnace ignition failure issues by ensuring the flame sensor remains free of excessive carbon buildup and the ignitor reaches peak temperature rapidly

Johnson Controls TE-6353P-1 Temperature Sensor 320735-701 it functions as a criticalThe Johnson Controls TE 6353P 1 is a high precision outdoor air temperature sensor engineered for demanding building automation systems. Featuring a 1k ohm thin film platinum RTD (Resistance Temperature Detector) element, this sensor provides superior stability and long term accuracy compared to standard thermistors. The hardware includes a 3 inch stainless steel probe and a ruggedized thermoplastic conduit box with a 1 2 14 NPT female thread,