Nordyne 669553R TXV

The Nordyne 669553R is a high-performance 3.0 Ton R22 TXV engineered for precise refrigerant metering in residential and light commercial evaporator coils. As a direct OEM replacement for 669553 and cross-referenced with part number 0104732, this thermostatic expansion valve ensures optimal superheat control across varying load conditions. Designed specifically for R-22 refrigerant systems, the 669553R maintains peak system efficiency by modulating liquid flow into the evaporator, preventing liquid slugging and protecting the compressor. HVAC contractors will find this valve essential for restoring factory-spec performance in Intertherm, Miller, and Nordyne A-coil assemblies. The robust construction and calibrated power element provide reliable HVAC replacement part longevity in demanding environments, ensuring the thermal expansion process remains stable under high ambient temperatures. Integrating this 3-ton thermal expansion valve during a coil service or dry-charge unit installation streamlines the commissioning process and stabilizes suction pressures.

• Direct OEM Compatibility: Specifically designed to replace the legacy 669553 and 0104732 models in Nordyne-manufactured equipment.
• Calibrated Suction Control: Maintains precise superheat to maximize heat transfer efficiency and component lifespan.
• Versatile Application: Validated for use across a wide range of Intertherm, Miller, and Gibson 3-ton evaporator coils.
• Industrial-Grade Build: Features a durable power element and diaphragm assembly to withstand high-pressure R-22 cycles.

Is the 669553R compatible with R-410A systems?
No, this specific valve is factory-calibrated for R-22 refrigerant only. Using this TXV with R-410A will result in incorrect metering and potential system failure.

Does this part include the sensing bulb and mounting hardware?
Yes, this OEM assembly typically includes the thermal sensing bulb required for accurate suction line temperature monitoring.

Can this 3-ton TXV be used on a 2.5-ton system?
It is recommended to match the tonnage exactly. A 3.0-ton valve on a smaller system may cause hunting and unstable evaporator pressures.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.