Pentair Air Bleed Assembly, for 320 CNC Plus | 170029 Aluminum Replacement Burner Assembly for Napoleon

Replacement Burner Assembly for Napoleon High Definition 81 Fireplace

You’ll commonly see it as part of a floor return assembly in the main circulating loop

polished boundary around the unit

Commonly associated with 3/4 HP

Controls no longer mount or align correctly

Pentair Air Bleed Assembly, for 320 CNC Plus | 170029 Aluminum Replacement Burner Assembly for NapoleonWhat This Part Is Used For The Pentair 170029 Air Bleed Assembly is designed for compatible 320 CNC Plus filter systems to release trapped air. It ensures proper filter operation during startup and normal circulation. Why This Part Matters Proper air relief prevents pressure spikes and supports consistent water flow. A worn Assembly may leak or fail to vent air fully. Replacing the component restores stable filtration performance. Key Features and