|
8612-034 OBSOLETE
- MC4000 Main Controller Board
The Bard 8612-034 MC4000 Main Controller Board is an OEM control component used in Bard MC4000 series solid state dual unit lead lag controller applications, providing the primary logic and switching needed to coordinate two wall mounted A C or heat pump systems for dependable staged heating and cooling operation. This main board handles low voltage control inputs and outputs for each unit and supports common MC4000 functions like alternating lead lag control, setpoint and timer based changeover, and system interfaces such as fire smoke shutdown and optional features like remote sensors and dehumidification control when configured per the Bard controller manual. Use this Bard genuine replacement part when a failed controller board is causing erratic staging, loss of outputs, or controller power issues, and verify compatibility by matching the part number and your controller model and wiring diagram before ordering.
Official replacement(s):
8612-040
- MC4000 Main Controller Board