Lennox 85C23 Low Pressure Switch

The Lennox 85C23 Low Pressure Switch is safety accessory used in Lennox HVAC products such as furnaces and air conditioners. It serves as a guard by measuring the pressure of the refrigerant in the system. When the pressure is low; it flips the switch to shut the system off to avoid permanent damaging of the pump and other related parts. In this way, the Lennox 85C23 Low Pressure Switch prevents the operation of the system under low pressure conditions thus protecting the system and making it to last longer.