Allied Air LX7920 Blower Motor 1/2 Hp 115V 5-speed

Product Description

The ALLIED AIR LX7920 is a direct drive fan and blower motor rated at 1/2 HP and designed for residential and light commercial HVAC air-handling applications. Operating at 115 volts AC, single-phase, 60 Hz, it draws 8 amps and runs at 1075 RPM with 5-speed capability, allowing the installer to match airflow to the system's static pressure and comfort requirements. The motor ships in a 48Y NEMA frame with a flex bracket mount for straightforward installation in most blower housings. An automatic reset thermal overload protector guards the winding against overheating without requiring manual intervention after a fault clears.

This motor is suited for forced-air systems where a direct drive configuration replaces belt-drive assemblies or where an OEM blower motor has failed. The open air-over (OAO) enclosure relies on the moving airstream for cooling, making it appropriate for indoor air handler and furnace blower applications. The 5-speed tap selection allows HVAC technicians to configure heating, cooling, and continuous-fan speeds independently at commissioning or during a service call.

Key Features

• 1/2 HP output at 1075 RPM for consistent airflow across system operating conditions
• 5-speed motor taps provide flexibility for heating, cooling, and continuous-fan speed settings
• 48Y NEMA frame with flex bracket mount fits a wide range of blower housings
• Automatic reset thermal overload protector protects winding from heat damage
• OAO enclosure designed for indoor air-over service in furnace and air handler blower decks
• Single-phase 115V operation works with standard residential electrical supply

Compatibility

Designed as an OEM-style replacement direct drive blower motor for residential and light commercial forced-air HVAC systems requiring a 48Y frame, flex bracket mount, 1/2 HP, 115V single-phase motor.

Installation Notes

Installation should be performed by a licensed HVAC technician. Disconnect and lock out power to the air handler or furnace at the breaker before removing the existing motor or accessing blower wiring. Confirm the selected speed tap matches the system's design airflow before returning the unit to service. Verify that the flex bracket and blower wheel are properly secured to prevent vibration and bearing wear during operation.

Technical Specifications

• Power Rating: 1/2 HP
• Voltage Rating: 115 volts AC, 1-Phase
• Frequency Rating: 60 Hz
• Full Load Amps (FLA): 8 amps
• Speed Rating: 1075 RPM
• Number of Speeds: 5
• NEMA Frame Size: 48Y
• Mounting: Flex Bracket
• Enclosure Type: OAO (Open Air-Over)
• Insulation Class: B
• Thermal Protection: Automatic Reset Thermal Overload Protector
• Weight: 15.54 pounds

Standard Information

• Brand: ALLIED AIR
• Manufacturer Part Number: LX7920