U.S. Motors 1821VG HVAC Three Phase OAO Rigid Base Motor 1.5 HP 208-230/460 - 1821VG

U.S. Motors 1821VG HVAC Three Phase OAO Rigid Base Motor 1.5 HP 208-230/460 - 1821VG

The U.S. Motors 1821VG is an HVAC three-phase OAO rigid base motor designed for efficient operation. It delivers one and a half horsepower and operates at a speed of twelve hundred revolutions per minute. This motor is suitable for various heating, ventilation, and air conditioning applications.

Product Highlights

This motor is engineered for continuous duty, ensuring reliability in demanding settings. Its robust design includes thermal protection and a rigid base for stability.

Features

• Power: 1.5 HP
• Voltage Rating: 208-230/460
• Frame Size: 56YZ

Specifications

What our Experts Think

• Reliable 1.5 HP Output:
  Runs at 1140 RPM—perfect for steady airflow in commercial HVAC condenser fan systems.

• Inverter Duty Rated:
  Designed for use with variable frequency drives (VFDs), offering flexible speed control and energy savings.

• Open Air-Over (OAO) Enclosure:
  Optimized for shaft-up mounting in ventilated locations, keeping the motor cool during operation.

• Durable Frame & Base:
  Features a rigid base with a 56YZ frame for easy installation and structural stability in HVAC setups.

• Versatile Voltage Support:
  Operates on 208-230/460V, 3-phase, 60 Hz—compatible with a wide range of power systems.

• Built-In Thermal Protection:
  Includes Class F insulation and automatic overload protection to ensure long-lasting performance under tough conditions.

• Low-Maintenance Bearings:
  Equipped with double-sealed ball bearings for smooth, reliable operation and reduced upkeep.

• Shaft Grounding Ring:
  Protects against harmful voltage buildup on the shaft—especially important in VFD environments.

• Flexible Motor Direction:
  Reversible rotation for added versatility in different HVAC configurations.

Q&A

Q: What is the U.S. Motors 1821VG?
A: It's a 1.5 HP, three-phase motor designed for HVAC applications, featuring a rigid base and Open Air Over (OAO) enclosure for effective cooling and ventilation.

Q: What are the key specifications?
A: This motor operates at 208-230/460V, 1140 RPM, and features a 56YZ frame, Class F insulation, and an 84% efficiency rating. It draws 5.3/2.6 amps and weighs approximately 44 lbs.

Q: What features make it stand out?
A: The 1821VG includes inverter-duty compliance (NEMA MG1 Part 31), thermostat thermal protection, double-sealed ball bearings, a shaft grounding ring, and reversible rotation.

Q: What applications is it best suited for?
A: Perfect for HVAC and refrigeration systems, especially condenser fan applications that require continuous-duty motors and compatibility with variable frequency drives (VFDs).

Q: Why choose the 1821VG motor?
A: It’s reliable, efficient, and built for high-performance HVAC use, making it a smart choice for demanding commercial environments.

Maintenance Tips

1. Regular Cleaning

• After each use, clean the motor to remove dust, debris, and any material residues.

• Use a soft brush or cloth to clean the surfaces.

• Wipe all parts dry to prevent moisture buildup.

2. Structural Inspections

• Periodically inspect the motor for signs of wear or damage.

• Check for rust, bent components, or any structural issues.

• Address any issues promptly to maintain safety and functionality.

3. Lubrication

• Lubricate moving parts, such as the bearings, to ensure smooth operation.

• Use a suitable lubricant that does not attract excessive dust or debris.

4. Electrical Connections

• Ensure that all electrical connections are secure and free from corrosion.

• Check the wiring for any signs of wear or damage and replace them if necessary.

5. Storage

• Store the motor in a dry, clean environment to prevent rust and corrosion.

• If storing for extended periods, consider applying a protective coating to metal parts.