Danfoss 121L3276 Compressor

The Danfoss 121L3276 Scroll Compressor is a high-performance hermetic scroll compressor engineered specifically for technical professionals servicing commercial and industrial air conditioning systems. Operating on a 230V 3-phase power supply (compatible with both 200–220V/50Hz and 208–230V/60Hz), this HLP068T2LC6 model provides a reliable 68,000 BTU (approx. 5.7 tons) of cooling capacity. It is optimized for use with R22 and R407C refrigerants, utilizing Alkylbenzene (160ABM) oil with a factory charge of 1.57 liters. As the direct replacement for 120U3276, the 121L3276 features brazed ODF connections (7/8” suction and 1/2” discharge) for secure integration. Built for durability, it includes an internal overload protector and a high-side maximum operating pressure of 31.1 bar, ensuring stability in demanding rooftop packaged units and split system applications where fixed-speed reliability is critical.

• Universal Application Support: Fully compatible with R22 and R407C for seamless legacy system retrofits.
• Drop-in Replacement: Serves as the precise successor to the Danfoss 120U3276, maintaining footprint and piping alignment.
• Enhanced Motor Protection: Integrated internal overload protection prevents failure during electrical fluctuations or thermal stress.
• Robust Connection Ports: Standard 7/8” x 1/2” ODF brazed connections simplify brazing and minimize leak points in the field.
• Industrial Build Quality: IP22-rated protection and a heavy-duty 38.5 kg net weight signal high-grade internal components designed for continuous duty.

Is the 121L3276 compatible with R410A systems?
No, this unit is specifically designed for R22 and R407C. Using high-pressure R410A will exceed the compressor's design parameters and lead to immediate failure.

What is the correct oil type for field top-offs?
This compressor uses Alkylbenzene (AB) oil (specifically 160ABM). Do not mix with standard POE or mineral oils unless specifically performing a full system flushing for refrigerant conversion.

Can I use this for 230V single-phase applications?
No, this is a 3-phase compressor (3PH). Attempting to wire this to a single-phase supply will damage the motor and is not supported.

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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.