Danfoss 120U3277 Compressor

The Danfoss 120U3277 is a high-efficiency hermetic scroll compressor engineered for commercial HVAC applications requiring 75,545 BTU/hr capacity. Operating on a 208-230V 3-phase power supply, this unit is built to manage demanding thermal loads while maintaining strict energy efficiency ratios (EER). This specific model serves as the direct technical replacement for legacy units including 120U0836, 120U0866, 120U1901, HCM075T2LP6, and HLM075T2LC6. Designed with a robust internal pressure relief valve and optimized scroll sets, it provides superior liquid handling capabilities and reduced sound envelopes during high-ambient operation. For contractors performing system retrofits or emergency repairs, the Danfoss Performer series ensures consistent refrigerant mass flow and reliable performance under varying compression ratios. Integration into existing liquid chillers or rooftop units is streamlined by standard suction and discharge brazed connections, ensuring a secure, leak-proof refrigeration cycle.

Key Benefits

• Drop-in Compatibility: Replaces multiple legacy 120U and HCM/HLM series compressors without requiring extensive piping modifications.
• Enhanced Thermal Management: Optimized motor cooling ensures longevity even during high-load R-410A or R-407C applications.
• Precision Scroll Technology: Fewer moving parts compared to reciprocating models, resulting in lower vibration and higher mechanical efficiency.
• Industrial Build Quality: High-grade internal components engineered to withstand frequent cycling and discharge temperature spikes.

Common Questions

What are the primary replacement cross-references for this unit?
This compressor is the designated replacement for 120U0836, 120U0866, 120U1901, HCM075T2LP6, and HLM075T2LC6. Always verify the LRA (Locked Rotor Amps) and RLA (Rated Load Amps) on the nameplate before installation.

Is this compressor compatible with R-410A systems?
Yes, the 120U3277 is designed for high-pressure refrigerants and is commonly utilized in systems optimized for R-410A and similar blends.

Does this unit come pre-charged with oil?
Most Danfoss scroll compressors are shipped with a factory charge of PVE or POE oil; however, the oil level must be verified via the sight glass after the system reaches stabilization.

This item is not eligible for free shipping.

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.