Description
The Lennox 100087-11 High-Pressure Switch is a critical safety and control device designed for use in HVAC (Heating, Ventilation, and Air Conditioning) and refrigeration systems. This switch is engineered to monitor and regulate high-pressure levels within the system, ensuring safe and efficient operation. With its specific actuation and reset pressure thresholds, normally closed (N.C.) configuration, and 45-inch leads, this high-pressure switch is an essential component for maintaining system integrity.
High-pressure switches play a vital role in HVAC and refrigeration systems by safeguarding against excessive pressure conditions that can lead to system damage or even catastrophic failures. The Lennox 100087-11 switch is designed to actuate, or open its electrical circuit, when the pressure in the system reaches 590 PSI (Pounds per Square Inch). This actuation signals that the pressure has exceeded safe limits, and the switch initiates a response, such as shutting down the system or triggering an alarm.
Once the pressure has been reduced to a safe level, the high-pressure switch resets at 418 PSI, returning the electrical circuit to its closed position. This reset feature ensures that the system can resume normal operation once the high-pressure condition has been resolved.
The normally closed (N.C.) configuration of the switch means that it maintains a closed electrical circuit when the system is operating within safe pressure ranges. When a high-pressure event occurs, it opens the circuit, interrupting the electrical connection and triggering the appropriate response, which can include system shutdown or alarm activation.
The inclusion of 45-inch leads provides flexibility in the switch's installation, allowing technicians to position it strategically within the system to effectively monitor pressure conditions. The extended leads simplify connection to the system's control circuitry.
Proper installation and calibration of high-pressure switches are essential for their reliable performance. HVAC technicians and professionals with expertise in refrigeration systems are responsible for ensuring that the switch is correctly installed, calibrated, and integrated into the system's control logic.
