Lennox 80W58 Pressure Switch 320788-704 the DCL164S is compatible with

the DCL164S is compatible with HCFC

Ensure the thermocouple is generating at least 25-30mV under load before replacing the magnet head

maintaining system efficiency under demanding operational cycles

ensuring a tight seal and consistent torque throughout its service life

This OEM humidifier replacement part bundle addresses these issues directly

Lennox 80W58 Pressure Switch 320788-704 the DCL164S is compatible withFor service calls involving intermittent furnace shutdowns or inducer blower faults, the Lennox 80W58 Pressure Switch is the direct OEM replacement engineered to maintain system integrity. This single stage air pressure switch features a precise . 75" WC factory setpoint, critical for verifying proper draft and venting before the ignition sequence begins. Designed for compatibility with high efficiency Lennox, Armstrong, and Ducane gas furnaces, this