Dungs Pressure Switches 266942 Gas Pressure Switch M/R 1-20" WC

The Dungs Pressure Switches 266942 Gas Pressure switch is designed for safety and control in HVAC systems. It measures the pressure of the gas on a scale of 1-20 inches of water column. If the pressure is out of this range, the switch turns on and stops the supply of the gas to avoid the development of hazardous operating conditions. It prevents equipment like gas-fired furnaces, boilers, and water heaters from problems that may result from inadequate gas flow, or leaks. It has a manual reset which means someone has to intervene and reset the system after a pressure fault, making it safer.