Marvair 30090 Blower Wheel

The Marvair 30090 Blower Wheel is a high-performance OEM replacement part engineered for 3.5 to 4-ton industrial HVAC units. Built for technicians who prioritize system uptime, this centrifugal blower fan features a dual-inlet design and is precisely balanced to minimize shaft vibration and motor bearing wear. When servicing telecommunications shelters or modular offices, utilizing a genuine Marvair 30090 ensures the assembly maintains its original CFM delivery and static pressure capabilities. This 19-pound heavy-duty air mover is specifically configured for left-hand (LH) orientation, making it critical for the correct rotation within the blower housing. Whether you are performing routine maintenance or a total system overhaul, this HVAC blower wheel provides the aerodynamic efficiency required to maintain consistent airflow and prevent heat exchanger stress in demanding environmental control units.

• Precise OEM Fit: Drop-in replacement for Marvair 3.5/4-ton systems, eliminating field modifications and balancing issues.
• Optimized Airflow: Engineered blade pitch reduces turbulence and maximizes static pressure for superior heat transfer.
• Durability: Rugged construction withstands high-torque starts and industrial run cycles in extreme climates.
• Reduced Mechanical Noise: Factory-balanced geometry prevents resonant vibration, extending the service life of the blower motor.

Is this blower wheel compatible with standard 3-ton Marvair units?
The 30090 is specifically indexed for 3.5 and 4-ton industrial units; always verify the hub bore and wheel dimensions against your specific model plate to ensure proper clearance.

What is the orientation of this wheel?
This is a left-hand (LH) rotation wheel. Installing a counter-rotation wheel will result in significantly reduced airflow and potential motor overheating.

Does this part include the mounting set screw?
Standard Marvair blower wheels typically come with the integral hub and set screw for secure shaft attachment, though we recommend inspecting your existing shaft for scoring before installation.

This item is not eligible for free shipping.

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.