Common Questions Can I replace this packing gland while the system is hot and pressurized

Internal Safety: Dual automatic valves provide redundant shut-off protection within the gas train

15" WC rating of this switch to ensure the burner fires within safe manufacturer parameters

Ensure the door is flush against the frame to depress the switch plunger

Trane WHL0476 Wheel 30067439-890 Common Questions Can I replaceThe Trane WHL0476 is a heavy duty centrifugal blower wheel engineered for high static pressure applications in commercial and industrial HVAC systems. This OEM replacement part is built to the exact tolerances required for high volume airflow, featuring a 13 3 8 inch diameter and a 12 5 8 inch width. Designed for reliability in the field, it utilizes a 5 8 inch bore for a secure press fit or setscrew attachment to the motor shaft, minimizing vibration