Trane BLW1322 Blower Assembly

The Trane BLW1322 2 Stage Induced Draft Blower Assembly is the direct engineering successor to the BLW0334, designed specifically for technicians servicing high-efficiency, multi-stage gas furnaces. This assembly features a two-stage inducer motor capable of operating at dual RPM speeds (3000/2400), allowing the furnace to modulate combustion airflow based on actual heat demand. Operating at 115V with a 60Hz frequency, this centrifugal draft blower ensures precise venting of flue gases through the heat exchanger while maintaining optimal static pressure for safe system operation.

As an OEM-spec replacement, the BLW1322 blower eliminates the need for field modifications when upgrading from the legacy BLW0334 blower assembly. The unit uses a single-phase motor with clockwise (CW) rotation, housed in a durable assembly built to withstand the thermal stresses of continuous venting. For contractors performing diagnostic repairs, this 2-stage induced draft motor resolves common pressure switch faults and draft-related ignition failures, restoring factory-standard combustion efficiency to the furnace.

• Direct Drop-In Replacement: Specifically engineered to replace Trane BLW0334 and BLW1322 part numbers without chassis modification.
• Dual-Speed Modulation: Supports 2-stage firing cycles, reducing electrical consumption and decibel levels during low-fire operations.
• Optimized Flue Venting: High-torque centrifugal blower design ensures consistent evacuation of combustion byproducts through the exhaust path.
• OEM Durability: Constructed with heavy-duty materials to resist corrosion from acidic condensate typical in high-efficiency venting environments.

Common Questions:

Is the BLW1322 compatible with my older BLW0334 unit?
Yes, the BLW1322 is the manufacturer-verified update for the BLW0334. It maintains identical mounting footprints and electrical connections for seamless installation.

Does this assembly include the draft inducer gasket?
While many technician-grade assemblies require a separate GKT3081 gasket, it is always recommended to verify the seal's condition and apply a new high-temp silicone or gasket to ensure no flue gas leakage occurs.

What are the symptoms of a failing 2-stage blower?
Common signs include excessive bearing noise, vibration, or a "pressure switch stuck open" error code on the furnace control board, indicating the motor isn't reaching the required RPM for safety clearance.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.