Lennox 80W51 Pressure Switch 0.55" W.C.

The Lennox 80W51 is a single stage pressure switch, which is an essential device in managing the heating and cooling systems known as the HVAC. It checks the air pressure within the system and activates electrical parts depending on the previously set pressure. For instance, it can switch on a furnace fan whenever the pressure becomes too low or switch it off whenever pressure becomes too high. This is to avoid damaging this equipment and also to ensure adequate air circulation takes place. The Lennox 80W51 works with 24V systems and the unit’s. It has only one set point pressure level because it is a single-stage device.