York S1-028-10577-700 Fixed Blower Pulley Els PW 17895 Optimized Airflow: Restores the 100%
Baker’s notes & crumb story
Description
York S1 028 10577 700 Fixed Blower Pulley Els PW 17895 Optimized Airflow: Restores the 100% Optimized Airflow: Restores the 100% negative pressure required for the safe removal of combustion byproduct gases effectively interrupting the electrical circuit to the burner or heating elements if internal temperatures exceed safe operating parameters