Ao Smith 100111022 Variable Frequency Drive Assembly

Product Description

The AO SMITH 100111022 is a Variable Frequency Drive (VFD) assembly designed for use in commercial water heating systems. A VFD assembly controls motor speed by varying the frequency and voltage supplied to the motor, allowing for precise regulation of pump or blower operation within the heating unit. This assembly is an OEM-style replacement component intended for installation by licensed plumbing, HVAC, or mechanical contractors working on large-capacity commercial water heaters.

This VFD assembly is specified for use in AO SMITH BTH 400 and BTH 500 series commercial water heaters. These are high-capacity units commonly found in commercial and light industrial applications such as hotels, apartment complexes, and facilities with high domestic hot water demand. The assembly integrates into the heating system's motor control circuit to support efficient operation across varying load conditions.

Key Features

• OEM-style Variable Frequency Drive assembly for direct replacement
• Designed for BTH 400 and BTH 500 series commercial water heaters
• Supports variable-speed motor control for pump or blower regulation
• Engineered to integrate with existing motor control wiring in the BTH series platform

Compatibility

Designed for use with AO SMITH BTH 400 and BTH 500 series commercial water heaters as stated by the manufacturer.

Installation Notes

Installation of a VFD assembly should be performed by a licensed mechanical or electrical contractor familiar with commercial water heating equipment. Disconnect all electrical power to the unit and allow capacitors to fully discharge before servicing or replacing the drive assembly. Work should comply with applicable NEC requirements for motor control equipment. Consult the BTH series service manual for wiring diagram references before connecting the replacement assembly.

Technical Specifications

• Application: BTH 400 and BTH 500 Series Commercial Water Heaters
• Component Type: Variable Frequency Drive Assembly

Standard Information

• Brand: AO SMITH
• Manufacturer Part Number: 100111022