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and compressor contactor pilot circuits
Standardized Wiring: Equipped with a 4-pin terminal plug for rapid interface with existing burner control modules
The assembly features a 42-inch capillary and a 3/16" x 15-3/8" bulb
Professionals rely on its ANSI Z21
this OEM component ensures seamless HVACR system compatibility when interfacing between thermostat controllers and high-load mechanical parts
McDonnell & Miller 193-A Controller 30067439-890 and compressor contactor pilot circuitsThe McDonnell & Miller 193 A is a heavy duty combination low water cut off and pump controller engineered for commercial steam boiler applications. Designed for boilers with a maximum pressure of 150 PSI, this unit features dual snap acting SPDT switches for precise burner control and pump activation. The 193 A model utilizes alternate tappings to simplify installation on various boiler configurations. Its rugged float operated mechanism ensures
