Description
The Greenheck 475364 Low Pressure Switch is used that detects air pressure levels within ventilation ducts or air handling units. It is installed at points where monitoring low pressure is essential to system operation. The switch closes or opens its electrical contacts when air pressure drops below the set threshold, sending a signal to connected fans, compressors, or control circuits. By responding directly to changes in airflow pressure, the switch regulates the activation of equipment and prevents operation under insufficient pressure conditions, providing precise pressure monitoring within HVAC system components.
