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The "Hold Open" switch allows the technician to keep the damper open during maintenance or startup without the burner being energized
preventing common mechanical failures like housing resonance or bearing seizures
Broad Compatibility: Direct fit for multiple 69 Series models
provided the required outlet pressure falls within the 1
Lennox 10M23 Service Valve 321894-708 The "Hold Open" switch allowsThe Lennox 10M23 Service Valve is a critical OEM replacement part designed for technicians performing HVAC repair and maintenance on high performance residential cooling systems. This 3 8 inch service valve facilitates precise refrigerant flow control and allows for system isolation during leak testing or component swaps without a full charge recovery. Built for compatibility with the Lennox 14ACX and XC13 series, the 10M23 features a robust, leak
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