Danfoss SM115-4RI Compressor

The Danfoss SM115-4RI is a high-performance R22 scroll compressor designed for large-scale commercial air conditioning and heat pump applications. Operating on 460V 3-phase power, this Danfoss SM series model delivers a nominal capacity of 115,200 BTU/hr, making it a reliable choice for maintaining precise climate control in heavy-duty systems. This unit features rotolock connections for straightforward installation and maintenance, with a suction connection size of 1-3/4 inches and a discharge connection of 1-1/4 inches. Engineered for durability, the SM115-4RI compressor utilizes high-grade internal components to manage liquid slugging and thermal cycling effectively. With an ARI rating optimized for efficiency in cooling-only and heat pump circuits, this commercial HVAC compressor provides the high torque and steady discharge pressure required for demanding environments. For contractors seeking a Danfoss SM115 replacement, this unit ensures seamless integration with existing R22 refrigerant piping and electrical configurations.

• Internal Lead Protection: Features a high-pressure relief valve and internal motor protection to guard against phase loss and thermal overloads.
• Rotolock Ports: Simplifies field replacement by allowing for quick mechanical connections without the need for extensive brazing in tight spaces.
• Optimized Efficiency: Designed for high EER ratings in commercial settings, reducing operational costs while maintaining high-tonnage output.
• Vibration Dampening: The scroll design minimizes pulsation and noise levels, essential for roof-top and split-system applications.

Common Questions

Is the SM115-4RI compatible with modern refrigerants?
This specific model is designed for R22 refrigerant systems. If you are retrofitting, ensure all oil and seal compatibility checks are performed according to Danfoss technical guidelines.

What is the proper oil charge for this unit?
The SM115-4RI typically ships with a mineral oil charge (160P). Always verify the sight glass level after the break-in period to ensure adequate lubrication of the scroll sets.

What are the electrical requirements for installation?
This compressor requires a 460V / 3-phase / 60Hz power supply. Ensure the contactor and overcurrent protection are sized for the Max Continuous Current (MCC) rating specified on the nameplate.

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.