The ASCO 8210G14 is a pilot operated valve and requires a minimum operating pressure differential of 5 PSI to function correctly

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

maintaining reliable operation in manufacturing and commercial plant maintenance

leading to poor flame characteristics

Carrier HK37AA001 Control Board 322057-301 The ASCO 8210G14 is aThe 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.