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Danfoss Scroll compressor R134a MLZ021T4LP9 400V 121U8006

Order No.: 107.2280
Manufacturer number: 121U8006
Manufacturer: Danfoss

To subsequent product 107.2518

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Description

Designed for traditional refrigeration applications - MLZ refrigeration scroll compressors
Danfoss is a global supplier of high-quality and high-performance compressor solutions for refrigeration applications. Milk tanks, supermarkets, cold storage rooms, ice machines and much more – we ...

Designed for traditional refrigeration applications - MLZ refrigeration scroll compressors
Danfoss is a global supplier of high-quality and high-performance compressor solutions for refrigeration applications. Milk tanks, supermarkets, cold storage rooms, ice machines and much more – we develop sustainable solutions that can meet the challenges of energy, environment and food safety facing our customers. The best example of this is our new MLZ range of scroll compressors that have been specially developed for the refrigeration technology sector.

Why so much emphasis on this aspect?
Simple: Refrigeration technology has its own special requirements. While air conditioning technology primarily aims to provide comfort, refrigeration technology focuses on process and food safety - areas that require a high degree of reliability. The evaporating temperature range and the operating conditions are two of the special challenges affecting the design of a refrigeration scroll compressor. The changing operating conditions, temperature spikes, the different number of evaporators, etc. presents a formidable challenge to using these scroll compressors. Fluctuating ambient temperatures also have an effect on operating conditions. It is for this reason that Danfoss developed the MLZ. This compressor delivers high energy-efficiency and reliability regardless of the application and operating conditions.


Low energy consumption
The combination of energy-efficient motor and scroll geometry specially optimised for refrigeration application achieves the ideal level of efficiency. A optimum constant axial pressure of the scrolls against one another is achieved using Danfoss’s patented adaptive control in a wide variety of system conditions (e.g. ice cream machines during the cooling phase). This avoids leaks as well as reducing friction to a minimum.

Long service life
The MLZ series of compressors has been specially designed for a long service life and reliability. This can be clearly seen in many details of the design. For example, the “Oldham coupling” scroll guides are extra reinforced, especially high-quality carbon bearings for the crankshaft and a patented overload protection device (HOOP) protects the compressor from any damage caused by excessive loads.

Low noise operation
The design of the MLZ scroll compressor generates impressively low noise levels. The low friction, constant compression in the scroll set, the lack of intake and pressure valves, the perfect fit of the components and check valves optimised for the fluid mechanics of the system ensure exceptionally low noise and vibration-free operation.

Tailored solution
As wide and varied as refrigeration applications can be, the MLZ scroll compressor from Danfoss is always the right choice. MLZ compressors will make you clearly stand out from your competitors.

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Accessories / Replacement parts

  • Adapter set for conversion
    Danfoss adapter set solder to Rotalock f. MLZ015,019,021,026 120Z0126
    Order No.: 107.2613
  • Angle adapter
    Danfoss angle adapter C04 1-1/4''x19mm 8168006
    Order No.: 107.1734
  • Angle solder adapter 1''x12mm solder
    Order No.: 312.9803
  • Crankcase heater
    Danfoss oil sump heater 230V 70W HLP081, HCP094-120, HLJ083 120Z0059
    Order No.: 107.2609
  • Pressure nozzle thermostat
    Danfoss pressurised gas temperature protection Kit for SZ/SM/LFZ/MFZ 7750009
    Order No.: 107.2605
  • Refrigerator oil
    Danfoss refrigeration oil can 1L PVE 320HV (FVC068D) 120Z5034
    Order No.: 531.0716
  • Seal, delivery side
    Rotalock seal 1'' Teflon 8156130
    Order No.: 107.1801
  • Seal, intake side
    Rotalock seal 1-1/4'' Teflon 8156131
    Order No.: 107.1802
  • Shut-off valve
    Danfoss rotalock valve press.gau.conn.right/byp.conn.left 1 1/4'' X 3/4'' solder 16003903
    Order No.: 107.1711
  • Valve, delivery side
    Danfoss rotalock valve press.gau.conn.right/byp.conn.left 1''x12mm + 1/2'' solder V06 8168031
    Order No.: 107.1615
  • Valve, intake side
    Danfoss rotalock valve press.gau.conn.right/byp.conn.left 1-1/4''x18mm solder V04 8168029
    Order No.: 107.1613

Technical data

General information
Refrigerant
R134a
R404A/R507A
R448A/R449A
Original No.
121U8006
Type
MLZ021T4LP9
Electrical Data
Starting current (locked rotor)
45 A
Supply voltage
400/3/50 V/Ph/Hz
max. operating current
9,5 A
Weight
Weight net
30,84 kg
Performance data
Flow volume
8 m³/h
at 50 Hz
Pipe connections
Pressure line
1/2 ODF Inch
Suction line
3/4 ODF Inch
Volume
Oil charge
320HV
Oil quantity
1,06 l

230 V / 1 ~ / 50 Hz Electrical starter not included. An operating capacitor suffices for PSC start. For CSR start, the customer must install a relay with capacitors.

Technical modifications reserved. Product images may differ from the actual product and are meant for demonstration purposes only. Absolutely no liability can be assumed for possible indication errors and errors in the manufacturers’ information.
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