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The Bard 536-491 supply blank off plate assembly is an OEM airflow blocking plate used on select Bard wall mounted package heat pumps to close off the supply outlet opening when the unit is configured for top outlet applications, helping maintain proper air path separation and preventing unwanted bypass air. This part is referenced in Bard replacement parts documentation for CH3S1, CH4S1, and CH5S1 series units (top outlet units), and it is a practical fix when a missing or damaged blank off plate is causing air leakage, poor discharge control, or cabinet noise. Verify your unit model and serial number and confirm the outlet configuration before ordering to ensure correct fit for your specific Bard wall mount.
* Orders less than $50 may incure a minimum order fee.