The Enertech YT series is a multi-positional vertical packaged two-stage geothermal system built with a variable-speed ECM blower motor that matches to the ductwork and offers multiple CFM settings. The blower control board holds the motor program that defines those airflow settings for the specific model.

47K034 is the Enertech ECM blower motor board; the trailing segment identifies the motor program loaded onto it. This kit is 47K034-40M313-14NN, the program for the YT048. A board with a different program suffix will not deliver the correct airflow table for this unit, so the full part number must match.

Verify the part number against the unit model and serial number and its wiring diagram before ordering.