Lennox 59W34 High Pressure Switch 640 PSI/475 PSI

The Lennox 59W34 is a high pressure switch, a safety component which is installed in different HVAC products and equipment, including air conditioners and furnaces. It serves to protect the system from unwanted harm and system damage resulting from a buildup of unnecessary pressure. The switch always checks the pressure of the refrigerant in the system. normally at 640 PSI here, the switch turns off the pressure. This safeguard avoids overloading equipment and possible failure of some of its components.