4828-0100594 -

: It acts as the "brain" for specific sub-systems, such as fan speed control, damper modulation, or sensor data processing. Installation & Safety Guide

: Look for the number printed directly on the green or blue solder mask of the board. It may be accompanied by a secondary manufacturer part number (often starting with "HK" or "CE"). 4828-0100594

If you are replacing this board, follow these industry-standard steps: : It acts as the "brain" for specific

: Disconnect all power sources to the HVAC unit. Large industrial systems may have multiple power feeds; verify with a voltmeter. such as fan speed control