Aprilaire 5529 Transformer R-448A 20-Inch Diameter: Direct fit for

20-Inch Diameter: Direct fit for Bard 5-ton wall-mount units to ensure proper cabinet clearance

Key Benefit List: OEM Precision: Genuine York 025-41535-000 ensures exact 585 PSI cutout and 400 PSI cut-in tolerances

reducing diagnostic time and eliminating the risks associated with universal wiring modifications

Is this compatible with Armstrong or Ducane units

this unit represents a reliable solution for restoring factory-spec furnace and air handler performance

Aprilaire 5529 Transformer R-448A 20-Inch Diameter: Direct fit forThe Aprilaire 5529 Transformer is a genuine OEM replacement component designed specifically for the Aprilaire Model 800 Steam Humidifier and Aprilaire 865 systems. This 40VA transformer is the essential power source for units featuring a fill valve inlet that extends from the bottom of the housing. By converting line voltage to a consistent 24V AC, it ensures that your whole home humidifier maintains peak electrical performance and system protection.