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The Bard MC4002-BC is an OEM dual unit lead-lag controller designed to manage two Bard wall mount air conditioners in telecom, shelter, and other mission-critical applications where reliable staging and rotation matter. This controller provides two stages of cooling control per connected unit and can be configured for systems with or without economizers, as well as certain heat pump applications, helping balance runtime between units while maintaining stable space temperature using its onboard display and programming interface. The MC4002-BC configuration includes the enhanced alarm board plus the Ethernet communication board, supporting network monitoring features such as SNMP traps and IPv6 for remote status and alarm reporting. Verify compatibility with your specific Bard equipment and control scheme before ordering.
* Orders less than $50 may incure a minimum order fee.