the B221 is built to withstand continuous operation

optimized for the airflow requirements of standard PTAC chassis

Recurrent tripping is usually a symptom of restricted airflow

resisting the common wax buildup found in older metering devices

Tjernlund Products 950-1011 Inducer Wheel R-448A the B221 is built toThe Tjernlund Products 950 1011 Inducer Wheel is a critical replacement component designed for high performance sidewall power venters and forced draft systems. Engineered for durability, this blower wheel is constructed from galvanized steel with a forward curved strip construction, ensuring optimal airflow dynamics and combustion efficiency in high temperature environments. It features 22 blades, each with a 2. 5 inch width, and is rated for a