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the Lennox 98M39 comes with the control module permanently factory-installed at the end of the motor
Standardized Mounting: Features a robust flange mount design that fits standardized bracket footprints found in most Lennox electrical panels
reducing labor costs and system downtime
What are the primary indicators that this module needs replacement
Carrier 337662-704 Pressure Switch Assembly 340155-7024 the Lennox 98M39 comes withThe Carrier 337662 704 Pressure Switch Assembly is a critical OEM replacement component designed for high efficiency condensing furnaces. This assembly features a triple switch configuration calibrated to monitor inducer motor performance and vent system integrity across multiple stages of operation. To ensure precise combustion safety, the unit is factory set with specific pressure trip points: 0. 65" WC for low stage, 0. 90" WC for medium stage, and