Carrier P503-C166S Suction Line Filter Drier 3/4 in Od

Product Description

The CARRIER P503-C166S is a suction line filter drier designed for use in refrigeration and air conditioning systems. Suction line driers protect the compressor by removing moisture, acid, and particulate contamination from the refrigerant circuit on the low-pressure side of the system. This unit features a 3/4-inch OD connection and a 13 cubic inch internal volume, making it suited for residential and light commercial cooling applications. Installation is typically performed by licensed HVAC technicians during system commissioning, compressor replacement, or burnout cleanup procedures.

This suction line drier is intended for use on the suction side of the refrigerant circuit, upstream of the compressor. It is commonly installed following a compressor burnout to capture acid and carbon byproducts before they can damage the replacement compressor. The 13 cubic inch capacity provides adequate desiccant volume for typical residential and light commercial split systems. Per the raw title data, this part is identified as equivalent to DSLD136SVHH, DRYS166S, and 066127.

Key Features

• 3/4-inch OD connection for direct inline installation on suction lines
• 13 cubic inch internal volume provides effective moisture and acid removal capacity
• Suction-side design protects the compressor from contamination
• Cross-references to DSLD136SVHH, DRYS166S, and 066127 for replacement sourcing
• Suitable for residential and light commercial refrigerant circuit service

Compatibility

Listed as equivalent to part numbers DSLD136SVHH, DRYS166S, and 066127. Designed as an OEM-style suction line drier replacement for refrigerant systems requiring a 3/4-inch OD inline drier connection.

Installation Notes

Licensed HVAC technicians should recover all refrigerant and depressurize the system before cutting into the suction line. Flow direction must be observed and followed as marked on the drier body. After installation, the system should be evacuated to the appropriate micron level before recharging. Suction line driers used for burnout cleanup should be replaced after a short run period and again with a permanent filter drier once the system is confirmed clean.

Technical Specifications

• Connection Size: 3/4 inch OD
• Internal Volume: 13 cubic inches
• Drier Type: Suction Line Filter Drier

Standard Information

• Brand: CARRIER
• Manufacturer Part Number: P503-C166S