Aprilaire 5444 Control Board L99H008 allowing the service port to

allowing the service port to be pressurized or isolated as needed

Key Benefits Precise Ignition Sequencing: On-board DSI logic eliminates standing pilots

13-Inch Immersion Length: Optimized surface area for efficient heating within the tank's water column

allowing for seamless integration into systems requiring a 2-10VDC or 4-20mA control signal

OEM Compatibility: Exact replacement for McQuay 5008993 and fits liquid line configurations requiring a 5/8" sweat connection (cross-references Emerson UK415S and Alco ADK415S)

Aprilaire 5444 Control Board L99H008 allowing the service port toThe Aprilaire 5444 Control Board is a critical internal control board engineered specifically for high performance moisture management systems. As a genuine Aprilaire replacement part, it is the primary processing unit for Aprilaire model 1830 and Aprilaire model 1850 series dehumidifiers, including the 1850F and 1850W. This HVAC control board manages vital system operations, from humidity level monitoring to integrated diagnostics. If your unit is