Technicians should use a manometer to confirm the system is pulling at least 0

making it an ideal stock item for repairing Lennox G8

Once the 117°C temperature threshold is exceeded

Self-Contained Operation: Functions as a direct-acting thermostatic valve

it ensures the inducer motor is moving sufficient combustion air before ignition occurs

Lennox 16596 Wheel 321894-706 Technicians should use a manometerThe Lennox 16596 is a high performance direct drive blower wheel engineered for precise airflow management in residential and light commercial furnaces and air handlers. Measuring 10 3 4" x 10 3 4" (standardized at 10. 625" by industry specs), this clockwise (CW) rotation wheel is a critical OEM replacement part designed to restore system static pressure and CFM delivery. It features a 1 2" bore diameter and a robust 48 blade configuration, ensuring