Westinghouse 920669A Txv Kit R-410A 2.5 Ton Air Handler

Product Description

The WESTINGHOUSE 920669A is a thermal expansion valve (TXV) kit designed for residential air handler systems using R-410A refrigerant at 2.5-ton capacity. The TXV meters refrigerant flow into the evaporator coil, maintaining proper superheat and protecting the compressor from liquid slugging. This kit is intended for air conditioning and heat pump applications and is installed by licensed HVAC technicians during new system commissioning or refrigerant-side service. The 920669A delivers an OEM-compatible replacement that restores proper metering device function in affected air handler units.

This TXV kit is rated for R-410A refrigerant systems at 2.5-ton capacity and is used in air handler installations for both air conditioning and heat pump configurations. It is suited for residential applications where the evaporator metering device has failed, is restricting flow, or must be upgraded as part of a system efficiency or refrigerant retrofit. Compatible model information from the manufacturer identifies specific GB5BM-series air handler units as the intended application.

Key Features

• Rated for R-410A refrigerant — no cross-refrigerant substitution required
• 2.5-ton capacity matches common residential split-system sizing
• Dual AC and heat pump (AC/HP) compatibility within the intended model range
• OEM-style kit format includes components needed for a complete metering device replacement
• Designed for GB5BM-series air handlers per manufacturer specification

Compatibility

Designed for use on GB5BM-series air handler units, specifically part numbers 04304GD/GB5BM-X30K-A and 904306GD/GB5BM-X30K-B, per manufacturer specification.

Installation Notes

Installation must be performed by an EPA Section 608 certified HVAC technician. The refrigerant system must be recovered and the unit de-energized before replacing the TXV. After installation, the system must be evacuated to the required micron level before recharging with R-410A. Verify proper superheat and subcooling readings at startup to confirm correct valve operation.

Technical Specifications

• Refrigerant Type: R-410A
• Capacity: 2.5 Ton
• Application: Air Conditioning and Heat Pump (AC/HP)
• Used On: Air Handler
• Compatible Model Series: GB5BM
• Compatible Part Numbers: 04304GD/GB5BM-X30K-A, 904306GD/GB5BM-X30K-B

Standard Information

• Brand: WESTINGHOUSE
• Manufacturer Part Number: 920669A