Danfoss MT40-3VI Compressor

The Danfoss MT40-3VI is a medium/high back pressure R22 reciprocating compressor engineered for commercial refrigeration and air conditioning applications. Operating on 200-230V 3-phase 60Hz power, this Maneurop MT series unit delivers a nominal 42,930 Btu/h capacity at standard ARI conditions (45°F SST / 130°F SCT). This hermetic replacement is pre-charged with mineral oil and features a high internal free volume to safely handle liquid slugging, ensuring reliability in demanding cycles. The mechanical interface includes a 1-1/4" Rotolock suction port with a 5/8" ODF sleeve and a 1" Rotolock discharge port with a 1/2" ODF sleeve. For parallel rack configurations, it provides a 3/8" NPT oil equalization connection. This industrial HVAC compressor is designed for high-ambient performance and 3-phase motor protection, making it a drop-in solution for legacy systems requiring precise thermal management and refrigeration system efficiency.

Technical Benefits

• Large internal volume provides superior resistance to liquid refrigerant return.
• 100% suction gas-cooled motor ensures stable operating temperatures during high-load periods.
• Internal motor protection and high-quality valve plates extend the service life of the commercial HVAC unit.
• Versatile Rotolock connections simplify installation and maintenance in the field.

Common Questions

What is the proper oil type for the Danfoss MT40-3VI?
This specific model is the "MT" version designed for R22 and uses mineral oil. If you are retrofitting for HFC refrigerants like R404A or R407C, the "MTZ" version with POE oil is required.

Can I use this compressor in a single-phase application?
No, the MT40-3VI technical specs require a 200-230V 3-phase power supply. Attempting to run this on single-phase power with a kit will lead to motor failure.

How do I handle the freight shipping for this unit?
Due to its weight and internal glass-to-metal seals, this 40,000+ BTU unit requires LTL truck transport to prevent transit damage.

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.