The Trane DHY1474 is a high-efficiency purge drier filter designed specifically for centrifugal chillers, serving as the direct replacement for DHY0337. In low-pressure HVACR systems, moisture and non-condensables are the primary enemies of compressor longevity and heat transfer efficiency. This liquid line filter drier utilizes a high-capacity desiccant core to extract moisture and neutralize acids from the refrigerant charge during the purge cycle. Field-proven for high-side filtration, the DHY1474 maintains optimal oil chemistry and prevents capillary tube plugging. When performing routine maintenance or a full system overhaul, swapping out the chiller purge filter is a standard protocol to ensure the EarthWise Purge system operates within OEM specifications. This component is critical for preventing internal corrosion and maintaining the dielectric strength of the motor windings in hermetic configurations. Verify your chiller model and serial number to ensure exact Trane replacement parts compatibility before installation.

Item is Non Cancelable / Non Returnable

Key Technical Benefits

• Moisture Removal: High-grade molecular sieve desiccant effectively captures water vapor to prevent acid formation.
• System Compatibility: Engineered as a drop-in replacement for DHY0337, ensuring seamless integration into existing Trane purge units.
• Acid Neutralization: Protects the compressor and internal components from chemical degradation caused by contaminated refrigerant.
• Solid Contaminant Filtration: High-density filter media traps debris and metal shavings that can lead to mechanical wear.
• OEM Reliability: Built to the exact standards required for industrial centrifugal chiller maintenance.

Common Questions

How do I know if the DHY1474 is compatible with my purge unit?
The DHY1474 is the designated replacement for the DHY0337. Check your unit’s service manual or nameplate. It is commonly found in Trane CVHE, CVHF, and CVHG chiller purge assemblies.

Is this filter compatible with R-123 and R-514A refrigerants?
Yes, this filter is designed to handle the chemical properties of low-pressure refrigerants typically used in purge systems, including legacy R-123 and newer R-514A replacements.

Does the DHY1474 include new O-rings for installation?
Standard practice requires replacing seals whenever the refrigerant circuit is opened; technicians should verify if the specific kit includes O-rings or if they must be sourced separately for the purge casing.

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.