Description
The Lennox 10U66 670 M/R High-Pressure Switch is a safety device in HVAC systems that measures pressure of the refrigerant in air conditioning equipment and heat pumps. This switch, which can be used with different HVAC equipment, is essential in protecting the equipment from damages that may be caused by high refrigerant pressure. Whenever the pressure goes beyond the working pressure, which is approximately 670 PSI, the switch blows the circuit and turns off the compressor to avoid system damage or leakage of the refrigerant.
