Lennox 10M85 High Pressure Switch Auto Reset

The Lennox 10M85 is an automatic reset high pressure switch that is applied in different HVAC products such as furnaces and air conditioners. It has the function of a safety device as it measures the pressure within the system. When the pressure rises beyond this level, the switch shuts off the operation in order to avert damage to the other part of the compressor, among others. When the pressure drops below the set point the switch resets and the system is able to return to its normal function.