Description
The Lennox 7121-8774 is a shaded pole condenser and combustion blower motor designed for reliable air movement in HVAC fan and blower applications. Rated at 1/30 HP and operating on 115V single-phase power, it delivers consistent 3,200 RPM performance with thermally protected operation. This OEM direct replacement motor is engineered for dependable service in residential HVAC systems.
Technical Specifications
| Condition |
New/Never Used Surplus |
| Brand |
Lennox |
| Category |
HVAC Motors |
| Part Number |
7121-8774 |
| Subcategory |
Condenser Fan & Blower Motors |
| Motor Type |
Shaded Pole |
| Horsepower |
1/30 HP |
| Voltage |
115 V |
| Phase |
Single Phase |
| Frequency |
60 Hz |
| Speed |
3,200 RPM |
| Full Load Amps |
1.5 A |
| Rotation |
Counterclockwise Shaft End (CCWSE) |
| Enclosure |
Open Air-Over |
| Mounting Type |
Lug Mount |
| Shaft Type |
Flat |
| Shaft Diameter |
5/16 in (0.313 in) |
| Shaft Length |
2.3 in |
| Bearings |
Sleeve (DE and ODE) |
| Insulation Class |
Class B |
| Thermal Protection |
Automatic |
| Frame Size |
3.3 |
| Body Diameter |
3.3 in |
| Overall Length |
5.78 in |
| Max Ambient Temp |
40°C |
| Standards |
UL Recognized, CSA Certified |
| Application |
Condenser Fan / Combustion Blower |
| Weight |
4 lb |
Information About 7121-8774
The 7121-8774 is an OEM replacement motor commonly used in Lennox HVAC equipment for condenser fan and combustion blower applications. It features a shaded pole motor design with sleeve bearings to support smooth and quiet operation. The motor is thermally protected and insulated with Class B materials, making it suitable for continuous-duty operation in environments up to 40°C ambient temperature. Its lug-mount construction and flat shaft design allow straightforward replacement and secure installation.
Key Features:
- OEM Replacement Motor: Designed as a direct replacement for Lennox HVAC applications.
- Shaded Pole Motor Design: Provides simple, reliable operation with minimal maintenance.
- 1/30 HP Output: Suitable for condenser fan and combustion blower duties.
- Single-Phase 115V Operation: Compatible with standard residential electrical systems.
- High-Speed Performance: Delivers a nominal speed of 3,200 RPM.
- Thermal Overload Protection: Automatically protects the motor from overheating.
- Open Air-Over Enclosure: Designed for air-over cooling in HVAC fan applications.
- Sleeve Bearing Construction: Ensures quiet operation and long service life.
- Lug Mounting Configuration: Allows secure and easy installation in compatible equipment.
The 7121-8774 delivers the reliability and precision required for HVAC fan and blower motor applications.
