The Dayton 1TDV2 is a purpose-built replacement blower motor engineered to drop in where Fasco model 7021-6560 units have failed. Rated at 115 CFM with a two-speed 2800/3200 RPM permanent split capacitor motor, it delivers reliable, continuous-duty airflow for HVAC, furnace, and ventilation applications. Ball bearings, automatic overload protection, and Class B insulation mean this motor is built to last in demanding environments.
When a blower motor fails in a furnace, air handler, or ventilation unit, downtime matters. The Dayton 1TDV2 is dimensioned and rated to replace the Fasco 7021-6560 without modification -- same flange footprint, same shaft diameter, same inlet and outlet geometry. It is also sold under the NBK part number 20750.
The motor runs on standard 115V single-phase power at 50 or 60 Hz, making it compatible with both North American grid power and many generator or shore-power setups. The two-speed design (2800 RPM at 60 Hz, 3200 RPM at 50 Hz) allows the host unit to manage airflow output through wiring selection rather than a separate speed controller.
Precision ball bearings on both ends of the shaft support continuous-duty operation and resist wear better than sleeve-bearing alternatives in high-cycle applications.
Built-in thermal overload protector shuts the motor down if winding temperatures exceed safe limits, protecting both the motor and the host appliance from damage.
Class B rated windings handle continuous operation with a margin above standard Class A ratings, supporting long service life in high-ambient-temperature installations.
IP20 protection guards against solid objects larger than 12mm entering the motor housing, appropriate for enclosed HVAC cabinets and furnace compartments.
This motor is the correct replacement for the following:
If your existing motor has a 3-5/8" squirrel cage wheel, 3-7/8" inlet diameter, and a flange measuring 3-15/16" wide x 3-1/2" tall, this unit matches your application. Verify shaft diameter (8mm) and rotation direction (clockwise, viewed from shaft end) before ordering if your unit differs from Fasco 7021-6560.
The 1TDV2 uses a permanent split capacitor (PSC) motor design. PSC motors run more efficiently and quietly than shaded-pole alternatives and do not require a start capacitor, simplifying installation. The motor is rated for continuous duty -- it can run indefinitely without a required rest cycle, making it suitable for always-on ventilation or heating systems.
Horsepower output is 1/20 HP, appropriate for the squirrel cage blower wheel included in the housing. Current draw is low -- 0.68A at 2800 RPM and 0.65A at 3200 RPM -- so this motor will not stress the host appliance's wiring or circuit protection.