Description
The Nordyne 669566R is a factory-engineered Thermostatic Expansion Valve (TXV) designed specifically for R410A refrigerant systems at a 3-ton capacity. Featuring an external equalizer design, this valve delivers accurate refrigerant metering and superior superheat control, helping maintain optimal system efficiency and protecting the compressor from liquid slugging.
Product Overview
The external equalizer port allows the valve to sense downstream pressure at the evaporator outlet, compensating for pressure drop across the coil and ensuring consistent superheat regulation across varying load conditions. This makes the 669566R an ideal OEM replacement for Nordyne-family equipment requiring precise refrigerant flow management.
Key Features
- Designed for R410A refrigerant — environmentally responsible, zero ozone-depletion potential
- 3-ton (36,000 BTU/hr) capacity rating
- External equalizer design for accurate superheat control across the full evaporator coil
- OEM Nordyne replacement part — direct-fit for compatible Nordyne, Gibson, Frigidaire, Tappan, and affiliated brand systems
- Helps protect the compressor by preventing liquid refrigerant flood-back
- Engineered for reliable, long-service performance in residential and light commercial HVAC applications
Application
- Compatible with Nordyne-family split system air conditioners and heat pumps
- Suitable for residential and light commercial installations
- Intended as a direct OEM replacement — always verify system compatibility before installation
Specifications
- SKU: 669566R
- Brand: Nordyne
- Refrigerant Type: R410A
- Capacity: 3 Ton (36,000 BTU/hr)
- Valve Type: Thermostatic Expansion Valve (TXV)
- Equalizer Type: External Equalizer
Reviews
There are no reviews yet.