Nordyne Intertherm 669556 Txv Valve

Product Description

The NORDYNE INTERTHERM 669556 is a thermostatic expansion valve (TXV) designed to regulate refrigerant flow in split-system and packaged HVAC equipment. The TXV meters liquid refrigerant into the evaporator coil based on superheat, maintaining efficient heat transfer across a range of load conditions. This valve is a direct OEM replacement component installed by licensed HVAC technicians during system servicing or refrigerant-side repairs. It plays a critical role in system efficiency and proper coil operation.

This TXV is intended for use in residential and light-commercial cooling and heat pump applications where precise refrigerant metering is required. It is suited for split-system air conditioners and heat pumps that rely on a TXV rather than a fixed orifice metering device. Technicians typically install or replace this valve when superheat readings are out of range, the valve is stuck open or closed, or the coil is showing signs of flooding or starving. Specific compatible model numbers were not provided in the product data.

Key Features

• OEM replacement TXV for NORDYNE INTERTHERM equipment
• Regulates refrigerant flow based on evaporator superheat
• Supports efficient heat transfer and stable coil operation
• Direct fit replacement reduces field modification time

Compatibility

Designed as an OEM-style replacement TXV for NORDYNE INTERTHERM residential and light-commercial HVAC systems. No specific model numbers or system families were identified in the available product data.

Installation Notes

Installation should be performed by an EPA Section 608 certified HVAC technician. Recover all system refrigerant and relieve system pressure before removing the existing valve. Verify the replacement valve orientation and bulb placement match the original installation to ensure accurate superheat sensing. After installation, recharge the system to manufacturer specifications and confirm superheat and subcooling readings are within acceptable range before returning the unit to service.

Technical Specifications

• Component Type: Thermostatic Expansion Valve (TXV)

Standard Information

• Brand: NORDYNE INTERTHERM
• Manufacturer Part Number: 669556