The Tjernlund 950-4020 replacement motor is a purpose-built 115v 1/4hp 1725rpm motor designed specifically for integration with Tjernlund draft inducers and power venting systems. Engineered for high-static pressure environments, this PSC motor provides the consistent torque necessary to maintain stack temperature and proper combustion airflow in mechanical drafting applications. When servicing commercial or residential venting equipment, using this direct OEM Tjernlund motor replacement ensures that the motor's amperage draw and thermal protection settings align with the original system specifications, preventing premature mechanical failure. The 1725 RPM operating speed is calibrated to balance volume displacement with noise reduction, making it a reliable choice for HVAC power venter repair. Its rugged construction is designed to withstand the heat cycles common in flue gas environments, ensuring stable performance during continuous duty cycles without the performance drop-off seen in generic alternatives.

• Direct OEM Fit: Drop-in replacement for Tjernlund 950-4020, ensuring correct shaft diameter and mounting alignment.
• Optimized Performance: 1/4 HP rating provides sufficient power to drive blower wheels through restrictive flue piping.
• Electrical Compatibility: Precision-wound for 115V single-phase systems with 1725 RPM for standardized venting curves.
• Industrial Durability: Built to handle the high ambient temperatures found near combustion equipment and ventilation housings.

Common Questions

Is the 950-4020 motor compatible with all Tjernlund power venters?
This motor is specifically designed for models requiring a 1/4 HP, 1725 RPM configuration. Verify your existing motor's part number on the nameplate to ensure mounting and electrical compatibility.

What are the electrical requirements for this replacement?
The unit operates on a 115V, 60Hz power supply. It is critical to check the capacitor requirements and amperage ratings on your control board to ensure proper system pairing.

Can I use a higher RPM motor as a substitute for the 950-4020?
Substituting with a different RPM motor can disrupt the pressure switch calibration in your draft inducer, potentially leading to unsafe operation or system lockout. Stick to the 1725 RPM specification for this venting system.

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.