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Using it on smaller units may cause misalignment
as the probe requires a metal-to-metal ground to function
While designed as a genuine Trane component
avoiding the calibration issues common with universal clones
The VAL6939 is supplied as the valve body with straight threads
AERCO 123970 Flame Sensor 318973-401 Using it on smaller unitsThe AERCO 123970 Flame Sensor is a critical safety component engineered for precision flame detection in high performance heating systems. Specifically designed for use in AERCO Benchmark boilers and Innovation series water heaters, this flame rod utilizes flame rectification technology to monitor the combustion process. By providing instantaneous flame sensing, the 123970 ensures that the gas valve remains open only when a consistent ignition is
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