Lennox 36W49 Pressure Switch 65324900 -0.55"

The Lennox 36W49 Pressure Switch is an HVAC safety component installed in different Lennox HVAC products such as furnaces and air handlers. It serves as a watchdog for the pressure of air in the system. Through the detection of pressure level and activation of an on/off switch whenever pressure reaches a certain threshold, it protects the equipment from damage. When pressure deviates from the desired range, the switch isolates the system to avoid damaging the compressors, heat exchangers, and other parts. It uses a normal power supply of 240V with a frequency of 60 Hz. This pressure switch helps protect HVAC parts and virtually supports the longevity of an HVAC system when its proper air pressure is well managed.