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the 3TX7144-1E4 socket supports both standard 35mm DIN rail mounting and traditional panel-mount configurations
It is not interchangeable with the smaller SORIT-PI models without verifying specific port sizing
Common symptoms include a furnace that cycles but fails to light
including FTI-15 through FTI-200
McDonnell & Miller 193-B-7B Controller Els PW 29614 the 3TX7144-1E4 socket supports bothThe McDonnell & Miller 193 B 7B (Part Number 164700) is a heavy duty combination low water cut off and pump controller specifically engineered for commercial and industrial steam boiler applications. Designed to handle a maximum pressure of 150 PSI, this unit features a No. 7B proportional control switch that provides a 135 ohm potentiometer signal. This allows for precise, continuous modulation of the feed water flow rather than simple on off
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