Westinghouse 664378R Liquid Line Set Fitting

Product Description

The WESTINGHOUSE 664378R is a liquid line set fitting designed for use in furnace line set applications. This fitting serves as a connection component within the refrigerant liquid line circuit, maintaining a sealed, leak-free path for liquid refrigerant flow between system components. Licensed HVAC technicians installing or servicing C6 line set furnace configurations will find this part a direct match for the original equipment specification. It is a service and replacement part intended for professional installation in residential or light commercial HVAC systems.

This fitting is specifically used on C6 line set furnace configurations. It functions in the liquid line portion of the refrigerant circuit, where refrigerant travels from the condenser or metering device toward the evaporator. Proper fitting integrity in this section of the circuit is critical to maintaining system efficiency and preventing refrigerant loss. This part is suited for technicians performing line set service, repair, or replacement on applicable equipment.

Key Features

• Designed as a liquid line set fitting for the refrigerant circuit
• Specific fitment for C6 line set furnace applications
• OEM-specification replacement to maintain original system integrity
• Supports leak-free refrigerant containment in the liquid line circuit

Compatibility

Designed for use on C6 line set furnace configurations as specified by the manufacturer.

Installation Notes

Installation should be performed by a licensed HVAC technician with EPA Section 608 certification. Before servicing the refrigerant circuit, recover all refrigerant in accordance with EPA regulations and de-energize the system at the disconnect and breaker. Follow applicable mechanical codes and manufacturer service documentation when accessing or replacing line set fittings. Do not overtighten or cross-thread fittings during reassembly.

Technical Specifications

• Type: Liquid Line Set Fitting
• Used On: C6 Line Set Furnace

Standard Information

• Brand: WESTINGHOUSE
• Manufacturer Part Number: 664378R