Nordyne 669684R R410A 4-Ton Thermostatic Expansion Valve (TXV)

Description

The Nordyne 669684R is an OEM thermostatic expansion valve (TXV) engineered for R410A refrigerant systems operating at a 4-ton capacity. Designed as a direct replacement for compatible Nordyne equipment, this TXV precisely meters refrigerant flow into the evaporator coil, maintaining optimal superheat levels and protecting the compressor from liquid slugging.

Key Features

• Designed for R410A (zero-ODP, low-GWP) refrigerant systems
• 4-ton nominal capacity for residential and light commercial applications
• Thermostatic expansion valve provides precise refrigerant metering and superheat control
• OEM Nordyne replacement part — engineered for direct, drop-in compatibility
• Helps maintain system efficiency and protects compressor integrity
• Durable construction built to withstand the higher operating pressures of R410A systems

Application

The 669684R TXV is a factory-authorized replacement component for Nordyne-branded HVAC systems, including units marketed under the Frigidaire, Gibson, Tappan, Westinghouse, and other Nordyne family brands. Proper TXV operation is critical to system efficiency, comfort, and equipment longevity.

Specifications

• SKU: 669684R
• Brand: Nordyne
• Refrigerant Type: R410A
• Nominal Capacity: 4 Ton
• Valve Type: Thermostatic Expansion Valve (TXV)