Danfoss SM185-3RI Compressor

The Danfoss SM185-3RI is a high-capacity scroll compressor engineered for commercial HVAC applications using R22 refrigerant. Operating on a 230V 3-phase power supply, this model delivers a nominal cooling capacity of 185,400 BTU/h. Designed for reliability in demanding rooftop units and chillers, the SM185-3RI features an internal motor protection system and a robust scroll design that handles liquid slugging better than reciprocating units. This specific part is a direct replacement for the SM185S3RC, maintaining the same physical footprint and electrical characteristics for seamless field installation. The unit utilizes mineral oil (160P) and incorporates a braze-type connection for leak-proof integration. For technicians performing retrofits or repairs, this Danfoss Danfoss scroll compressor provides the high volumetric efficiency and low sound levels required for large-scale air conditioning systems. Ensure proper compressor cross-reference verification and oil compatibility before brazing into the circuit.

Key Benefits

• High Thermal Efficiency: Delivers 185,400 BTU/h to meet heavy-duty 15-ton cooling demands.
• Direct Interchangeability: Fully compatible with the SM185-3RI and SM185S3RC specifications for faster job site turnaround.
• R22 Compatibility: Optimized for existing R22 mineral oil systems, eliminating the need for complex lubricant flushes during standard replacements.
• Industrial Build Quality: Features a 3-phase motor design to reduce starting current and improve long-term mechanical reliability.

Common Questions

Is the SM185-3RI compatible with R417A or R422D?
While originally designed for R22, this compressor can often function with specific R22 drop-in replacements, provided the lubricant is compatible and system pressures are monitored. Always verify expansion valve settings when switching refrigerants.

What is the difference between the SM185-3RI and the SM185S3RC?
These models are technically identical in performance, footprint, and electrical requirements. The RI designation typically refers to specific packaging or minor terminal box configurations that do not affect core operation.

Does this unit come pre-charged with oil?
Yes, this scroll compressor is shipped with a standard charge of 160P mineral oil specifically formulated for R22 applications.

This item must ship via truck. Please contact us for freight quote.

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.