Will the 15000 unit fit a Friedrich wall sleeve

Yes, the ACiQ 15,000 BTU PTAC (ACIQ-15PTC5-B) is compatible with a Friedrich PDXWS wall sleeve. HVACDirect’s installation manual specifically lists the Friedrich PDXWS sleeve as a retrofit option, with dimensions of 16" high × 42" wide × 13.75" deep, and the ACiQ unit itself measures 15.98" high × 42.01" wide × 20.94" deep. But you should make sure the existing or replacement exterior grille is compatible and that the foam seals properly against the grille to prevent air recirculation.

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