Danfoss MTZ 056-4VM Hermetic Reciprocating Compressor (MTZ56HL4BVE) - 96.13 cm³, 5 HP, 50,744 BTU/h, 2 Cylinders, R404A/R134a/R452A, 400V 3 Phase 50Hz

Designed for high capacity and durability in commercial and industrial refrigeration systems (medium / high temperature), this is the Danfoss Maneurop MTZ 056-4VM hermetic reciprocating compressor (Danfoss model: MTZ56HL4BVE). With its 2-cylinder design, 96.13 cm³ displacement and 5 HP power, it is suitable for cold rooms, supermarket sections, process cooling and beverage cooling applications. In addition to R404A/R507 and R134a, it also works with the low-GWP R452A, R449A, R448A, R513A, R454C alternative refrigerants; it is filled with POE oil. This 4VM variant has a 400V / 3 phase / 50 Hz motor.

2-Cylinder Maneurop MTZ Reciprocating Compressor — 5 HP / 50,744 BTU/h

The Maneurop MTZ series offers the high efficiency of reciprocating technology and field-proven durability. Internal thermal motor protection, a wide operating envelope (evaporating down to -35°C) and rotalock service valve connections make installation and service easy. It runs at 2900 rpm (50 Hz).

Key Technical Specifications and Equipment

• Nominal Capacity: 5 HP (5 horsepower) / 50,744 BTU/h (14,872 W) — R404A, te +5°C / tc +50°C (50Hz basis).
• 2-Cylinder Reciprocating Design: High efficiency, low vibration, long service life.
• Wide Refrigerant Compatibility: R134a, R404A, R407A, R407C, R407F, R448A, R449A, R452A, R513A, R454A, R454C, R455A.
• Internal Motor Protection: Thermal (internal overload) protection.
• Rotalock Connection: Suction 1 3/4 inch, discharge 1 1/4 inch service valves (with ODF sleeve).
• Power Supply: 400V / 3 phase / 50 Hz (4VM variant, also 460V/3/60Hz); IP55, CE / UL / UKCA approved.

Technical Specifications

• Brand / Model: Danfoss Maneurop / MTZ 056-4VM (Model code: MTZ56HL4BVE)
• Type: Hermetic reciprocating, 2 cylinders, fixed speed
• Application: Commercial / industrial refrigeration (medium / high temperature - MT/HT)
• Nominal Power: 5 HP (5 horsepower)
• Cooling Capacity: 50,744 BTU/h (14,872 W) — R404A, te +5°C / tc +50°C (50Hz basis); COP ~2.75
• Displacement: 96.13 cm³ (16.73 m³/h @ 2900 rpm)
• Compatible Refrigerants: R134a, R404A, R407A, R407C, R407F, R448A, R449A, R452A, R513A, R454A, R454C, R455A
• Power Supply: 400V / 3 phase / 50 Hz (4VM variant, also 460V/3/60Hz)
• Speed: 2900 rpm (50Hz) / 3500 rpm (60Hz)
• Current: MCC ~12 A / LRA (starting) ~64 A (400V)
• Motor Protection: Internal thermal (internal overload)
• Oil: POE 175PZ, ~1.8 L (oil equalization port 3/8 inch flare SAE)
• Connection: Suction 1 3/4 inch rotalock (7/8 inch / 22.2 mm tube), discharge 1 1/4 inch rotalock (3/4 inch / 19.05 mm tube)
• Operating Envelope: High side -35 / +150°C (max 29.4 bar); low side -35 / +50°C (max 22.6 bar)
• Max. Starts: 12 starts/hour
• Protection Class: IP55 (with cable gland)
• Approvals: CE, UL, UKCA
• Weight: Net ~38 kg

Technician Tips

• Voltage: This 4VM variant has a 400V / 3 phase / 50 Hz motor (standard three-phase mains). Do not operate it on a 200-230V supply.
• Use the ODF sleeves supplied with the product on the rotalock service valves and braze the connections under nitrogen to prevent internal oxidation.
• POE oil is hygroscopic; keep the compressor sealed until installation and evacuate the system thoroughly before commissioning (moisture = acid + winding failure).
• Verify the phase sequence and direction of rotation at first start-up; do not allow more than 12 starts per hour.
• The stated capacity is based on te +5°C / tc +50°C (50Hz); confirm the actual capacity for your own evaporating/condensing temperatures with Danfoss Coolselector.