Lennox 86H31 High Pressure Switch 410 PSI Manual Reset

The Lennox 86H31 High-Pressure Switch is safety device that is meant to be used in your Lennox HVAC system. It also works as protector of system against the high pressure load within the system. If pressure gets to a higher level than is set at 410 PSI the switch turns off the system to help avoid hurting the compressor and the rest of the system. Like most pressure switch types, this single pole, normally closed (SPST-NC) contact switch has a manual reset button to enable the system to be reset once the pressure is back down.