Danfoss MT32JF4DVE Reciprocating Compressor

Danfoss Maneurop Reciprocating Compressor MT32JF4DVE

The Danfoss Maneurop MT32JF4DVE is a hermetic reciprocating compressor engineered for medium evaporating temperature (MBP) refrigeration and heavy-duty HVAC systems. Featuring a single-cylinder displacement of 53.83 cm³ per revolution, this fixed-speed unit is designed to handle harsh operating conditions, high pressure ratios, and demanding ambient thermal swings.

Built with an oversized internal volume and a deep-sump oil design, the MT32JF4DVE provides high resistance against liquid refrigerant slugging. The motor is 100% suction-gas cooled, protecting the stator windings against thermal fatigue even under elevated condensing conditions. Factory-charged with 160P mineral oil, it delivers consistent lubrication across commercial cold storage, process chillers, and shipboard provision refrigeration plants utilizing R22 or drop-in hydrocarbon blends.

Model Details

• Manufacturer: Danfoss Commercial Compressors (Maneurop)
• Model Number: MT32JF4DVE
• Order / Catalog Reference (Single Pack): MT32-4VI (Code: MT32JF4DVE)
• Industrial Bulk Reference: MT32-4VM
• Design Series: Maneurop MT Series (Medium Temperature)
• Cylinder Configuration: 1-Cylinder Reciprocating
• Standard EAN/UPC: 5702428839747

Technical Details:

Compressor Compatibility

• Marine Refrigeration Racks: Provision cooling plants on cargo vessels, tugs, offshore supply vessels (OSVs), and container carriers (Carrier Transicold, Sabroe/Johnson Controls, Daikin Marine, Novenco).
• Cold Storage Racks & Condensing Units: Bitzer, Copeland, and Danfoss Optyma condensing packages running medium-temperature evaporator setups.
• Commercial Chillers: Fluid chillers and glycol bath loops manufactured by Climaveneta, Trane, MTA, and York.
• Display Case Racks: Supermarket multi-deck cold storage and walk-in chiller plants.

Frequently Asked Questions

Can the Danfoss MT32JF4DVE operate on R404A or R134a?

No. The MT32JF4DVE comes pre-filled with 160P mineral oil, which is immiscible with HFC refrigerants like R404A or R134a. For HFC installations, select the equivalent POE-charged model, the Danfoss MTZ32JF4BVE (MTZ32-4VI), which utilizes 160PZ polyolester lubricant.

What is the maximum number of starts per hour for this compressor?

The maximum recommended starts per hour is 12. Higher cycle frequencies cause excessive thermal stress on the internal motor windings and degrade line contactors. Incorporate a minimum 3-minute anti-recycle timer in your electrical control automation.

Does the compressor require a directional phase monitor?

Because it is a single-cylinder reciprocating compressor with symmetrical internal valving, it pumps refrigerant regardless of clockwise or counterclockwise motor rotation. However, a phase failure/reversal monitor is recommended to protect against single-phasing (phase loss), which causes rapid stator overheating before the thermal protector trips.

Where should the suction line vibration absorber be positioned?

Position flexible corrugated vibration dampers horizontally and as close to the suction Rotolock valve as possible, aligned parallel to the crankshaft axis. Avoid installing rigid piping directly onto the compressor spuds; machinery room and hull vibrations will induce stress cracks in copper piping without flexible decoupling.