Danfoss 121L3070 Compressor

The Danfoss 120U3070 is a heavy-duty, 5-ton hermetic scroll compressor engineered specifically for air conditioning applications utilizing R407C refrigerant. This unit operates on a 208-230V, single-phase, 60Hz power supply, making it an ideal drop-in replacement for residential and light commercial equipment. Designed for durability, the 121L3070 compressor features brazed connections with a 7/8-inch suction and 1/2-inch ODF discharge port. As a direct replacement for 015-03406-004 and the 120U series (including 120U0281, 120U1521, and 120U1546), this high-efficiency scroll utilizes PVE lubricant to ensure optimal performance in high-temperature environments. Its internal motor protection and patented hybrid scroll wrap design minimize downtime while providing a quiet, reliable 60,000 BTU cooling capacity for legacy system maintenance and renovations.

Key Benefits

• Direct Compatibility: Engineered as a drop-in replacement for 120U3070 and York 015-03406-004, reducing onsite modification time.
• Optimized Efficiency: High EER performance specifically tuned for R407C refrigerant systems.
• Internal Protection: Features internal motor protection against thermal overload and pressure spikes.
• Low Noise Profile: Advanced scroll technology reduces vibration and operational noise by up to 3 dB compared to older reciprocating models.
• Robust Connections: Standardized brazed ODF connections ensure a leak-free seal in high-vibration HVAC environments.

Common Questions

Is the Danfoss 120U3070 compatible with R22 systems?
While R407C is a common R22 retrofit, this compressor is charge-optimized with PVE oil specifically for R407C. Always verify that system expansion valves and seals are compatible with the lubricant before installation.

What electrical components are required for the 121L3070?
This is a single-phase unit requiring a 55 µF run capacitor. For high-torque starting requirements, a secondary start capacitor (88-108 µF) and potential relay may be integrated.

Does this unit arrive pre-charged with oil?
Yes, the Danfoss 5-ton scroll is shipped with a full PVE oil charge, suitable for the HFC refrigerant envelope.

This item must be shipped via trucking. Please contact us for a 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.