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Reliable Fan Interlock: The M1-M2 contacts ensure the blower initiates first and terminates last for safe heat dissipation
Optimized Airflow: Engineered with side-vented slots to maintain proper pneumatic sensor sensitivity and response time
using an OEM Armstrong A22182-1 part is essential to maintain vessel design integrity
Designed to withstand the high-temperature environment of the combustion chamber
it supports voltages up to 277V and carries a robust 60A capacity
Resideo GS250 Thermometer Reliable Fan Interlock: The M1-M2The Resideo GS250 Thermometer is a heavy duty industrial temperature gauge designed for accurate monitoring in hydronic heating and cooling systems. Engineered as the direct replacement for the legacy 4004 53 series, this analog thermometer features a sweat brass well to ensure a secure, leak proof installation while providing excellent thermal conductivity. The dual scale dial displays temperature in both Fahrenheit and Celsius, allowing technicians
