Westinghouse 664080 Restrictor Orifice Ac Heat Pump

Product Description

The WESTINGHOUSE 664080 is a refrigerant restrictor orifice designed for use in single package air conditioning and heat pump systems. This fixed orifice controls refrigerant flow between the high-side and low-side of the refrigerant circuit, regulating the metering process that is critical to system efficiency and proper superheat. Licensed HVAC technicians install this component as part of a refrigerant-side repair or system refurbishment on compatible Westinghouse packaged units.

This restrictor is used in single package air conditioner and heat pump applications, specifically the P3BA, P3BC, Q3BA, and Q3BC model families. Single package units are commonly installed in light commercial and residential settings, typically mounted on a rooftop or ground pad. The 664080 is an OEM-specified part for these configurations and is used when the metering device requires replacement due to blockage, damage, or refrigerant circuit service.

Key Features

• Fixed orifice design meters refrigerant flow without moving parts
• OEM-specified replacement for P3BA, P3BC, Q3BA, and Q3BC single package units
• Compatible with both air conditioning and heat pump refrigerant circuits
• Direct-fit replacement supports efficient system restoration

Compatibility

Designed for use with Westinghouse P3BA, P3BC, Q3BA, and Q3BC single package air conditioner and heat pump units, as specified in the OEM product documentation.

Installation Notes

Installation should be performed by an EPA 608-certified HVAC technician. Recover all refrigerant from the system before removing or replacing the orifice, following applicable EPA and local regulations. Ensure the system is fully de-pressurized and isolated before beginning work. Inspect the orifice seat and surrounding tubing for debris or damage prior to installing the new restrictor.

Technical Specifications

• Part Type: Restrictor Orifice
• Application: Single Package Air Conditioner, Heat Pump
• Compatible Model Families: P3BA, P3BC, Q3BA, Q3BC

Standard Information

• Brand: WESTINGHOUSE
• Manufacturer Part Number: 664080