Westinghouse 668854R Heat Pump Accumulator

Product Description

The WESTINGHOUSE 668854R is a refrigerant accumulator designed for use in residential split system heat pumps. An accumulator protects the compressor by preventing liquid refrigerant from entering the suction line during low-load or transient operating conditions. It is a critical component in the refrigerant circuit and is typically replaced by a licensed HVAC technician during a compressor replacement or when the existing accumulator shows signs of restriction or failure. The 668854R is an OEM-specified part for select WESTINGHOUSE residential split system heat pump models.

This accumulator is used in residential split system heat pump installations. It is rated for outdoor condensing unit applications common to single-family and light-commercial residential settings. Compatible models include the BSH2BE4M1SP42K, BSH2BE4M1SP48K, and BSH2BE4M1SP60K, all within the BSH2BE4M1SP model series. Technicians servicing any of these units should confirm the accumulator is the correct OEM replacement before installation.

Key Features

• OEM-specified replacement accumulator for the BSH2BE4M1SP series heat pumps
• Protects the compressor from liquid slugging during low-load and defrost cycles
• Designed for residential split system heat pump refrigerant circuits
• Covers three capacity variants: 42K, 48K, and 60K BTU/h models

Compatibility

Compatible with WESTINGHOUSE residential split system heat pump models BSH2BE4M1SP42K, BSH2BE4M1SP48K, and BSH2BE4M1SP60K within the BSH2BE4M1SP series.

Installation Notes

Installation should be performed by a licensed HVAC technician certified to handle refrigerants under EPA Section 608 regulations. Recover all refrigerant from the system before disconnecting the accumulator. Ensure the replacement accumulator is properly brazed or connected per manufacturer specifications and that the system is leak-tested and evacuated before recharging. Do not start the compressor with the system open to atmosphere.

Technical Specifications

• Part Type: Accumulator
• Application: Residential Split System Heat Pump
• Compatible Model Series: BSH2BE4M1SP

Standard Information

• Brand: WESTINGHOUSE
• Manufacturer Part Number: 668854R