Danfoss MT64-4VI Compressor

The Danfoss MT64-4VI is a heavy-duty R22 reciprocating compressor engineered for medium and high evaporation temperature applications in commercial refrigeration. Part of the Maneurop MT series, this 3-phase refrigeration compressor features a displacement of 107.7 cm³/rev, delivering a nominal capacity of 64,366 Btu/h at standard ARI conditions (45°F evaporator / 130°F condenser). Designed for versatility, the motor is rated for 380-400V at 50Hz and 460V at 60Hz, making it a standard choice for industrial power grids. The MT64-4VI utilizes mineral oil (160P) and is equipped with 1-3/4" Rotolock suction and 1-1/4" Rotolock discharge connections, facilitating a secure, leak-resistant interface. With internal motor protection and a large internal free volume to mitigate liquid slugging risks, this Danfoss Maneurop MT64 model serves as a direct COM3758 replacement, ensuring high volumetric efficiency and reliability in demanding environments like walk-in coolers and process chillers.

Key Benefits

• Robust Reliability: Large internal volume and high-torque motor provide superior resistance to liquid slugging compared to standard scrolls.
• Direct Compatibility: Engineered as a drop-in MT64HM4DVE replacement and COM3758 replacement for existing R22 systems.
• Secure Connections: Rotolock fittings simplify field installation and maintenance by eliminating the need for brazing in tight spaces.
• Broad Operation Range: Rated for a wide temperature envelope, suitable for diverse cooling and industrial drying applications.
• Environmental Resilience: Built with a rugged aluminum housing for improved heat dissipation and corrosion resistance in mechanical rooms.

Common Questions

What oil is required for the Danfoss MT64-4VI?
This compressor is factory-charged with 1.8 liters of 160P mineral oil, specifically formulated for R22 refrigerant systems. Always verify oil levels via the 3/8" NPT oil equalization sight glass after installation.

Can this compressor be used with R407C or R404A?
The MT series is specifically designed for R22 and mineral oil. For HFC refrigerants like R404A or R407C, the Danfoss MTZ series with POE oil is required to ensure proper lubricant return and component longevity.

Does this unit include the necessary mounting hardware?
Yes, the Danfoss MT64-4VI typically ships as a single pack including the mounting kit (studs, nuts, and washers) and the initial oil charge to streamline the swap-out process for contractors.

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.