The Xylem-McDonnell & Miller 150S-HD Head Mech with Snap Switch 173003 is an essential component of the 150S line of low water cut-off controls, which protect boilers and other hydronic heating systems. The operation is performed by this head mechanism, which has snap-action and float switches. The float rises and falls in response to changes in water levels, activating or deactivating the boiler pump, and sounding the alarms in the event of low water. This essential part keeps the system operating securely and effectively and guards against potential harm from overheating or pump failures. Its robust Monel bellows construction deters corrosion, and its high-temperature snap switches provide dependable performance in harsh settings.
Xylem-McDonnell & Miller 150S-HD Head Mech W/Snap Switch 173003
The Xylem-McDonnell & Miller 150S-HD Head Mechanical with Snap Switch is a dependable component that controls water levels in a wide range of industrial and commercial applications. The durable construction of this mechanical head assembly ensures consistent performance and longevity, even in harsh operating conditions. The 150S-HD uses a snap switch mechanism to provide precise and accurate control signals based on water level conditions. The snap switch provides a simple and dependable method for activating or deactivating equipment in response to changes in water level, ensuring efficient operation while preventing potential damage or flooding. The 150S-HD Head Mechanical with Snap Switch is designed for simple installation and integration into existing systems, making it ideal for a variety of applications such as boilers, steam generators, and industrial process tanks. This component demonstrates Xylem-McDonnell & Miller's dedication to quality, dependability, and innovation in fluid control solutions.
Key Features for150S-HD Xylem-McDonnell & Miller Head Mech W/Snap Switch 173003
Monel Bellows: The unit likely incorporates a Monel bellows for corrosion resistance. Monel is a nickel-copper alloy known for its strength and resistance to corrosion, making it ideal for use in harsh environments such as boilers.
Maximum Pressure: The head mechanism is likely rated for a maximum pressure of 150 psi (pounds per square inch), which is sufficient for most residential and light commercial boiler applications. (Consult the user manual or datasheet for confirmation).
Head Mechanism Only: This is just the head (control section) replacement. It does not include the boiler water chamber or other components of the complete low water cut-off and pump controller unit.
Snap-Action Switches:The head mechanism utilizes snap-action switches for high-temperature service, ensuring reliable operation in the hot environment of a boiler system.
Signs of a Faulty Xylem-McDonnell & Miller 150S-HD Head Mech W/Snap Switch 173003:
Frequent Boiler Shutdowns: Unexpected or frequent boiler shutdowns could be caused by the head mechanism malfunctioning and triggering a false low water cut-off.
Pump not Functioning: If the pump control function within the head mechanism malfunctions, the pump might not turn on or might run continuously, disrupting proper water circulation within the boiler system.
Visible Corrosion on the Head Mechanism: While the head mechanism likely incorporates corrosion-resistant materials, excessive corrosion on the unit's exterior could indicate internal damage or deterioration over time.
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