The 511-330-104 is essential for resolving common ignition failures

maintaining reliable operation in manufacturing and commercial plant maintenance

This start relay and overload protector combo is specifically designed to manage the startup phase of the motor and provide continuous thermal and current monitoring

Always reference the specific unit parts list or serial number to confirm this is the correct exhaust gasket for your installation

Dual Gauge Ports: Includes two 1/4 inch NPT gauge ports for flexible monitoring configurations (plugs or gauges sold separately)

Carrier HK37AA001 Control Board 322057-301 The 511-330-104 is essential forThe Carrier HK37AA001 Control Board is a high precision OEM replacement part engineered for the command and oversight of HVAC furnace systems and rooftop units. Specifically designed for the Carrier 48DJD034 600 series and compatible with various 48JJ and 48HX models, this integrated furnace control board utilizes an advanced microprocessor to manage critical operational parameters including airflow regulation and temperature sequencing of operation.