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this genuine ICP flame rod provides the precise feedback signal required by the integrated furnace control to maintain the gas valve circuit
the Teflon non-stick material is chemically compatible with standard HFCs and HCFCs
this SPST (Single Pole Single Throw) switch provides the exact calibration required for high-duty cycle environments
secondary output to ensure stable operation of thermostats
Interchangeable Design: Specifically engineered to fit Parker valve stems
Reznor 121275 Block this genuine ICP flame rodThe Reznor 121275 Stack Flue Block is a high limit safety component engineered specifically as an Energy Cutout Device (ECO) for commercial and industrial gas fired heating units. Designed to monitor the integrity of the ventilation system, this blocked vent switch acts as a critical failsafe by measuring exhaust temperatures at the flue. If the sensor detects a restriction, backflow, or overheating condition where temperatures reach the 275F trip
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