903656 Nordyne Crown Assembly
903656 Nordyne Crown Assembly
Product Overview
903656 Nordyne Crown Assembly is an OEM vent termination accessory engineered to safely exhaust flue gasses from gas furnaces and condensing units through roof or sidewall installations.
Technical Specifications
| Specification | Detail |
|---|---|
| OEM Part Number | 903656 |
| SKU | 903656 |
| Application | Roof/sidewall vent termination |
| Material | Silver-finished metal |
| Outer Dimensions | 10" × 12" × 12" box |
| Product Weight | 2.345 lb |
| Package Weight | 10 oz |
| Vendor | Quinn Supply |
Cross-Reference Part Numbers
| OEM Part Number | Replaces |
|---|---|
| 903656 | 903656 |
Compatibility
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Nordyne and Nordyne Miller gas furnaces
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Condensing units requiring a crown assembly for vent termination
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Private-label units originally equipped with a 903656 crown assembly
Always confirm your equipment’s vent diameter and roof jack specifications before ordering.
Technician Notes
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De-energize power and shut off gas supply before servicing.
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Remove the existing crown assembly by loosening mounting screws at the roof or sidewall jack.
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Inspect the vent pipe for corrosion or obstructions; clean or replace as needed.
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Slide the new 903656 assembly into position, ensuring a snug fit over the vent pipe.
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Secure with corrosion-resistant screws and reinstall roof flashing or wall plate sealant.
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Restore power and run the furnace through a full heat cycle to verify proper draft and seal integrity.
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Check for any flue gas leaks around the crown joints; tighten fasteners or add sealant if necessary.