Ruud RXBA-B21X20 Uncased Coil Adapter Kit

Product Description

The RUUD RXBA-B21X20 is an uncased coil adapter kit designed to connect a B-width evaporator coil to a furnace or ductwork in a split-system HVAC installation. This adapter kit bridges the coil and the air handler or furnace cabinet, ensuring a secure, properly aligned connection that maintains airflow integrity through the system. Licensed HVAC technicians use this component during coil installations or replacements where the coil and furnace cabinet widths require an adapter to create a flush, sealed fit.

This adapter kit is suited for residential split-system cooling or heat pump applications where a B-width uncased evaporator coil is paired with a gas furnace or air handler. It is commonly installed in upflow or downflow configurations depending on the system layout. Use this kit when the coil and furnace or ductwork opening require alignment adjustment to maintain proper duct sealing and system airflow performance.

Key Features

• Designed for B-width uncased evaporator coils
• Adapts coil to furnace cabinet or ductwork opening for proper fit
• Supports secure, sealed coil-to-furnace connections in split-system installations
• OEM part from RUUD ensuring fitment consistency with compatible systems

Compatibility

Designed as an OEM-style adapter kit for use with B-width uncased evaporator coils installed on residential HVAC furnace or ductwork systems.

Installation Notes

Installation should be performed by a licensed HVAC technician. Disconnect and lock out power to the system before beginning coil or adapter work. Ensure all duct connections are properly sealed after installation to prevent air bypass and efficiency loss. Follow applicable local mechanical codes and manufacturer guidelines during installation.

Technical Specifications

• Application: B Width Uncased Coil to Furnace or Ductwork Adapter

Standard Information

• Brand: RUUD
• Manufacturer Part Number: RXBA-B21X20