PRESSURE SWITCHES

Pressure Switches in HVAC

A pressure switch in HVAC (heating, ventilation, and air conditioning) systems is a device designed to monitor the pressure of various fluids, including refrigerant, air, or water. It activates a response when the pressure reaches a predetermined setpoint. These switches are essential for protecting equipment, preventing damage, and ensuring safe operation.

Low or High Refrigerant Pressure Switches

These switches monitor the refrigerant pressure within the system and initiate an action if the pressure falls below or surpasses a specified setpoint, helping to prevent compressor damage.

Air Pressure Switches

These switches track the air pressure in the HVAC system and activate a response if the pressure goes above or below the configured threshold, ensuring airflow is within safe limits.

Water Pressure Switches

These devices monitor the water pressure in systems like boilers or chilled water loops, triggering system responses to maintain safe operating levels.

Differential Pressure Switches

These measure the pressure difference between two points in the system (e.g., across a filter or coil) and respond when the difference exceeds the setpoint, often indicating the need for maintenance.