Copeland 998-1873-03 Capillary Kit

The Copeland 998-1873-03 Capillary Kit is a specialized demand cooling injection kit engineered for specific Copeland Discus compressors. This capillary assembly is critical for managing discharge temperature in low-temperature refrigeration applications using R-22, R-407A, R-407F, or R-448A/R-449A. The calibrated capillary tube ensures precise refrigerant metering into the compressor head to mitigate overheating during high-compression ratios. Proper installation of this OEM Copeland replacement part ensures the liquid injection system maintains the compressor within the safe operating envelope, preventing oil breakdown and valve failure. Contractors should verify the Discus compressor model number and head configuration before installation to ensure the flare connections and tube length meet the specified mass flow requirements. This service kit is designed for immediate field replacement to restore factory-spec saturation temperatures and protect the mechanical integrity of the refrigeration system under heavy load conditions.

• Precise Mass Flow: Engineered specifically for Copeland Discus compressors to ensure accurate liquid injection rates.
• Thermal Protection: Prevents high discharge temperatures from compromising the lubricant and internal valve plates.
• Direct OEM Fit: Eliminates guesswork in the field with a genuine 998-1873-03 assembly that matches factory specifications.
• Application Versatility: Compatible with a wide range of modern HFC and HFO blended refrigerants used in low-temp racks.
• Durable Construction: High-grade copper tubing and robust fittings designed to withstand the vibration of heavy-duty HVACR compressors.

When should the 998-1873-03 injection capillary be replaced?
If the compressor is tripping on the demand cooling module or if you notice the capillary tube is kinked, clogged with debris, or showing signs of excessive vibration wear, immediate replacement is necessary to prevent compressor failure.

Is this kit compatible with R-404A systems?
While R-404A has lower discharge temperatures, this kit is primarily used in low-temperature applications where refrigerants like R-22 or R-448A require active temperature management through liquid injection.

Does this kit include the solenoid valve?
The 998-1873-03 specifically provides the capillary tube assembly. If the demand cooling solenoid is faulty, it must be sourced separately or as part of a complete liquid injection kit.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.