Danfoss MT80-4VI Compressor

The Danfoss MT80-4VI Compressor (part number MT80HP4CVE) is a heavy-duty reciprocating compressor engineered for medium-temperature refrigeration systems utilizing R22 refrigerant. Designed for 3-phase refrigeration applications, this Maneurop MT series unit operates on a dual-voltage configuration of 380-400V at 50Hz or 460V at 60Hz. With a cooling capacity of 84,977 Btu/h at standard rating conditions, it delivers consistent displacement for commercial cold storage and industrial processing. This fixed-speed refrigeration compressor features a 1-3/4" Rotolock suction and 1-1/4" Rotolock discharge, both supplied with ODF sweat sleeves for secure brazing. The internal motor protection and IP55-rated terminal box ensure electrical reliability under high-demand cycles. Pre-charged with 1.8 liters of mineral oil, this unit includes a 3/8" NPT oil equalization port, making it suitable for parallel mounting in rack systems where oil management is critical for industrial refrigeration longevity.

Key Benefits for Contractors

• Broad Compatibility: Direct OEM replacement for existing R22 reciprocating compressors, facilitating rapid field service and system restoration.
• Robust Construction: Large internal free volume reduces the risk of liquid slugging, a critical factor for medium temperature compressor longevity in varied load conditions.
• Complete Installation Kit: Ships with essential mounting grommets, bolts, and Rotolock gaskets to minimize downtime during commercial R22 compressor changeouts.
• Versatile Electrical Specs: The 3-phase, 460V/60Hz design is the standard for North American industrial power grids, ensuring stable torque and efficient starts.

Common Questions

What oil should be used for Danfoss MT80-4VI field top-offs?
This compressor is factory-charged with 160P mineral oil. Always utilize mineral-based lubricants when maintaining R22 systems to ensure proper oil return and miscibility.

Can this compressor be used with R407C or R404A?
The MT series is specifically designed for R22 refrigeration and mineral oil. For HFC refrigerants like R404A or R407C, the MTZ series (POE oil) must be used to prevent chemical incompatibility with the motor windings and lubricants.

What are the torque requirements for the Rotolock connections?
For the 1-3/4" suction connection, torque should be maintained at 110 Nm. The 1-1/4" discharge requires 90 Nm to ensure a leak-free seal under high-side pressures up to 27.8 bar.

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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.