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Summary of Contents for Danfoss MLZ/MLM090-116-130-160-200-240
- Page 1 Application guidelines Danfoss Scroll for Refrigeration MLZ/MLM090-116-130-160-200-240 R404A, R507A, R22 | 50Hz www.cc.danfoss.com...
- Page 3 Application Guidelines Content Single compressors ......................4 Manifold compressors .......................44 © Danfoss | Climate Solutions | 2022.03 AB243586442698en-000601...
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Page 4: Table Of Contents
Starting sound level....................................33 Running sound level ....................................33 Stopping sound level ..................................... 33 Sound generation in a refrigeration system ..........................33 Compressor sound radiation ................................33 Mechanical vibrations .................................... 34 Gas pulsation ......................................34 AB243586442698en-000601 © Danfoss | Climate Solutions | 2022.03... - Page 5 Refrigerant charging ....................................38 Insulation resistance and dielectric strength ..........................38 Ordering information and packaging ................39 Packaging ........................................40 Packaging details ..................................... 40 Industrial pack ......................................40 Spare parts & accessories ....................41 © Danfoss | Climate Solutions | 2022.03 AB243586442698en-000601...
- Page 6 Features Single compressors With its unique scroll design and manufacturing This new medium-temperature scroll compressor process flexibility, the new Danfoss scroll for is designed for commercial refrigeration refrigeration, MLZ/MLM090-240 offers a highly applications and extends Danfoss’ refrigeration efficient solution for demanding refrigeration compressors to 50.5 kW (30 HP) at common...
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Page 7: Scroll Compression Principle
The result is a highly efficient and process control techniques. In the design product with the highest reliability obtainable, of both the compressor and the factory, very and a low sound level. © Danfoss | Climate Solutions | 2022.03 AB243586442698en-000601... -
Page 8: Features
ARI, MBP conditions Motor voltage code 4: 380-415 V/3 ph/50 Hz Model variation T: design optimized for refrigeration Label Serial number 12345678 8 digit serial number Year code Month code Plant assembly line code AB243586442698en-000601 © Danfoss | Climate Solutions | 2022.03... -
Page 9: Technical Specifications
6.76 531.2 92.4 Note: EN12900 conditions: To= -10°C, Tc= 45°C, RGT= 20°C, SC= 0K * For MLZ090-130-160-200-240 R507 performance data are nearly identical to R404A performance data **MLM/Z116’s rating condition is EN12900@SH10K © Danfoss | Climate Solutions | 2022.03 AB243586442698en-000601... -
Page 10: Dimensions
4 holes 30 ° Ø 19.05 190.5 60 ° 30 ° All dimensions in mm Grommet HM 8 bolt Lock washer Compressor base plate Flat washer Steel mounting sleeve 15.25 mm Rubber grommet AB243586442698en-000601 © Danfoss | Climate Solutions | 2022.03... -
Page 11: Mlm/Mlz130
All dimensions in mm 345.4 279.4 4x holes Ø19 60° 370.8 304.8 60° Flexible grommet HM 8 bolt Lock washer Compressor base plate Flat washer Steel mounting sleeve 1.10 inch Rubber grommet © Danfoss | Climate Solutions | 2022.03 AB243586442698en-000601... -
Page 12: Mlm/Mlz160-200-240
All dimensions in mm Grommet Lock washer * HM 10 Bolt * Large at * Compressor base plate 27 mm washer Steel mounting sleeve 36 mm Rubber grommet Nut * * not supplied with compressor AB243586442698en-000601 © Danfoss | Climate Solutions | 2022.03... -
Page 13: Mlm/Mlz116
Steel mounting sleeve Module 28 mm power supply Rubber grommet Sump heater Faston 1/4" tabs Power supply Refer to section “Ordering information and packaging” for overview of shipped mounting accessories © Danfoss | Climate Solutions | 2022.03 AB243586442698en-000601... -
Page 14: Suction And Discharge Connections
The connection is a female 1/4" flare fitting incorporating a Schrader valve and is mounted on MLM/MLZ116 -130-160-200-240 models. Schrader The oil fill connection and gauge port is a 1/4" male flare connector incorporating a Schrader valve. AB243586442698en-000601 © Danfoss | Climate Solutions | 2022.03... -
Page 15: Electrical Data, Connections And Wiring
MLM/MLZ090 The terminal box is provided with a Ø 25.5 mm Terminal box and a Ø 29 mm knockouts. Ø 25.5 mm knockout Ø 29 mm knockout Power supply © Danfoss | Climate Solutions | 2022.03 AB243586442698en-000601... -
Page 16: Ip Rating
Any compressor damage related to this is installed in an enclosure, precautions must will not be covered by the Danfoss warranty. In be taken to avoid the temperature around the the same manner, cables must be selected in a... -
Page 17: Suggested Wiring Diagrams Logic
Optional short cycle timer (3 mins) ........180 s Compressor motor ................M External overload protection ............F2 Motor protection module ............MPM Pump-down pressure switch ............LP Thermistor chain................S High-pressure safety switch ............HP Safety pressure switch ..............LPS Control device ................. TH © Danfoss | Climate Solutions | 2022.03 AB243586442698en-000601... - Page 18 (4,500 Ω) and the output relay then trips – i.e. contacts M1-M2 are open. After cooling to below the response temperature (resistance < 2,750 Ω), a 5-minute time delay is activated. Appr. 1 second AB243586442698en-000601 © Danfoss | Climate Solutions | 2022.03...
- Page 19 Vavg = Mean voltage of phases 1, 2, 3. V1-3 = Voltage between phases 1 and 3. V1-2 = Voltage between phases 1 and 2. V2-3 = Voltage between phases 2 and 3. © Danfoss | Climate Solutions | 2022.03 AB243586442698en-000601...
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Page 20: Approvals And Certifications
Internal free volume Internal free volume without oil (liter) Product Low pressure High Total side pressure side MLM/MLZ090 13.6 14.3 MLM/MLZ116 28.8 31.3 MLM/MLZ130 28.5 MLM/MLZ160 34.1 39.1 MLM/MLZ200 34.1 39.1 MLM/MLZ240 35.3 40.4 AB243586442698en-000601 © Danfoss | Climate Solutions | 2022.03... -
Page 21: Operating Conditions
It also chemically regarding lubricate ability in compressors. react with water leading to acid and alcohol POE oil has better thermal stability than formation. refrigerant mineral oil. © Danfoss | Climate Solutions | 2022.03 AB243586442698en-000601... -
Page 22: Motor Supply
The figures below show the operating envelopes condensing temperatures as per the operating for MLZ/MLM compressors with refrigerants envelopes. R404A and R22. The operating limits serve MLZ116 - R404A Superheat: 10 K RGT: +20°C Evaporating temperature (°C) AB243586442698en-000601 © Danfoss | Climate Solutions | 2022.03... - Page 23 Application Guidelines Operating conditions Single compressors MLM 116 - R22 Superheat: 10 K RGT: 20°C Evaporating temperature (°C) MLM090 R22 SH11K Evaporating temperature (°C) OE-000007 MLZ090 R404A SH11K Evaporating temperature (°C) OE-000008 © Danfoss | Climate Solutions | 2022.03 AB243586442698en-000601...
- Page 24 Application Guidelines Operating conditions Single compressors MLM130 R22 SH11K Evaporating temperature (°C) OE-000009 MLZ130-160-200-240 R404A SH11K Evaporating temperature (°C) OE-000010 MLM160-200-240 R22 SH11K Evaporating temperature (°C) OE-000011 AB243586442698en-000601 © Danfoss | Climate Solutions | 2022.03...
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Page 25: Maximum Discharge Gas Temperature
DGT compressor! protection is required (n°1) and where it is not (n°2). A DGT accessory is available from Danfoss: refer to section “Spare parts & accessories”. MLZ116 Superheat: 10 K Example 1 RGT: +20°C... -
Page 26: High And Low Pressure Protection
Note that the oil return may vary since it out is recommended. depends upon system design. The system must be designed in a way that Danfoss recommends a restart delay timer to provides a minimum compressor running time limit compressor cycling. AB243586442698en-000601... -
Page 27: System Design Recommendations
To ensure proper refrigerant and oil circulation, • For vertical suction gas velocity: around 8-12 the speed limits in all pipes are generally m/s; recommended as follows: • For horizontal suction gas velocity: no less than 4 m/s; © Danfoss | Climate Solutions | 2022.03 AB243586442698en-000601... -
Page 28: Refrigerant Charge Limit
System design must be such that the amount of liquid refrigerant in the system runs reliably. Please contact Danfoss for compressor is limited. In this respect, follow the any deviation from these guidelines. - Page 29 An LLSV is used to isolate the liquid charge in the of the system can be further reduced by using a high pressure side, thereby preventing against pump-down cycle in association with the LLSV. © Danfoss | Climate Solutions | 2022.03 AB243586442698en-000601...
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Page 30: Liquid Flood Back
The suction accumulator also A suction accumulator must be carefully protects against off-cycle migration by providing dimensioned, taking into account the refrigerant AB243586442698en-000601 © Danfoss | Climate Solutions | 2022.03... -
Page 31: Low Ambient Application
For MLM/MLZ090-130-160-200-240, non- the suction and discharge pressures. return valve is mandatory. For further information, please contact Danfoss. © Danfoss | Climate Solutions | 2022.03 AB243586442698en-000601... -
Page 32: Scroll And Reciprocating
Both situations should be avoided by connecting a pressure and thermostat switch in the safety line. AB243586442698en-000601 © Danfoss | Climate Solutions | 2022.03... -
Page 33: Sound And Vibration Management
& oil cooled motor, compressor body insulation not generate the penetrating power of lower across its entire operating range is possible. frequency sound. © Danfoss | Climate Solutions | 2022.03 AB243586442698en-000601... -
Page 34: Mechanical Vibrations
This information can be obtained the typical range, testing should be conducted from the component manufacturer. under all expected conditions and operating AB243586442698en-000601 © Danfoss | Climate Solutions | 2022.03... -
Page 35: Installation
Store the compressor not exposed to rain, corrosive or flammable atmosphere and between -35°C and 70°C when charged with nitrogen. © Danfoss | Climate Solutions | 2022.03 AB243586442698en-000601... -
Page 36: Compressor Mounting
Remaining flux would cause corrosion of the contact the product manufacturer or distributor. tubing. For specific applications not covered herein, please contact Danfoss for further information. AB243586442698en-000601 © Danfoss | Climate Solutions | 2022.03... -
Page 37: Vacuum Evacuation And Moisture Removal
50 ppm end point dryness After burn out, remove & replace the liquid (EPD). Danfoss recommends DCL (solid core) line filter drier and install a Danfoss type DAS driers for the MLM compressor (R22 with mineral burnout drier of the appropriate capacity. Refer... -
Page 38: Refrigerant Charging
MLZ116 is factory charged with PVE32, when sight glass. topping up the compressor, customer could also use PVE68 lubricant. Danfoss supply PVE68 as The oil level can also be checked a few minutes accessory. after the compressor stops. -
Page 39: Ordering Information And Packaging
Single pack Compressor Model Variation Connections Features Voltage code4 MLM090 120H1774 MLM130 120H1772 MLM160 120H1770 MLM200 120H1768 MLM240 120H1766 MLZ090 120H1764 MLZ130 120H1762 MLZ160 120H1760 MLZ200 120H1758 MLZ240 120H1756 © Danfoss | Climate Solutions | 2022.03 AB243586442698en-000601... -
Page 40: Packaging
Voltage code 4 MLM090 120H1773 MLZ090 120H1763 MLM116 120H1118 MLM116 120H1231 MLZ116 120H1117 MLZ116 120H1230 MLM130 120H1771 Danfoss pallet MLM160 120H1769 MLM200 120H1767 MLM240 120H1765 MLZ130 120H1761 MLZ160 120H1759 MLZ200 120H1757 MLZ240 120H1755 AB243586442698en-000601 © Danfoss | Climate Solutions | 2022.03... -
Page 41: Spare Parts & Accessories
Models with 2"1/4 rotolock connection Multipack Rotolock nut Type Code n° Description Application Packaging Pack size 8153124 Rotolock nut,1"3/4 Models with 1"3/4 rotolock connection Multipack 8153126 Rotolock nut,2"1/4 Models with 2"1/4 rotolock connection Multipack © Danfoss | Climate Solutions | 2022.03 AB243586442698en-000601... - Page 42 80W 230V surface sump heater + bottom insulation, CE & UL MLM/MLZ130-240 Multipack 120Z0373 80W 400V surface sump heater + bottom insulation, CE & UL MLM/MLZ130-240 Multipack 120Z0377 56W 400V surface sump heater + bottom insulation, CE and UL MLM/MLZ116 Multipack AB243586442698en-000601 © Danfoss | Climate Solutions | 2022.03...
- Page 43 Gasket for sight glass, 1"1/8 (white teflon) All model Multipack 7956005 Gasket for sight glass, 1"1/8 (white teflon) All model Multipack 8154001 Danfoss Commercial Compressors blue spray paint All model Single pack © Danfoss | Climate Solutions | 2022.03 AB243586442698en-000601...
- Page 44 Operating principle ....................................59 Composition of MLM/MLZ116 trio ..............................59 Compressor mounting ..................................60 Quadro unit MLZ/MLZ116 ....................61 Operating principle ....................................61 Composition of MLM/MLZ116 quadro ............................61 Compressor mounting ..................................62 AB243586442698en-000601 © Danfoss | Climate Solutions | 2022.03...
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Page 45: General Overview
This is achieved by staggering the compressor switch on sequences that allow the parallel system to match its power with the capacity needed. © Danfoss | Climate Solutions | 2022.03 AB243586442698en-000601... -
Page 46: Oil Management Concept
Since oil equalization usually depends on equal sump pressures, this is To ensure suitable oil distribution, both passive a point of special attention. Danfoss Commercial and active types of systems are introduced into Compressors have developed specially adapted MLZ/MLM116 compressors. -
Page 47: Passive Systems
Oil management concept Manifold compressors Passive systems A passive system is an oil management system Danfoss has qualified only the even tandem without any measurement or control devices (two same compressors) for passive solutions. such as oil level regulators and oil controllers. - Page 48 Danfoss has qualified only the even tandem • To secure sufficient oil return to the compressor, (two same compressors) for passive solutions. Danfoss suggests below dimension requirement Compressor sumps and low-pressure shells are of the oil injection position: H>5D or H>111 mm.
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Page 49: Operating Conditions
There must be no more than 12 starts per hour (6 Danfoss recommends a restart delay timer to when a resistor soft-start accessory is introduced); limit compressor cycling. a number higher than 12 reduces the service life ©... -
Page 50: Defrost Cycle
“off cycle migration. ” amount of migration below, measures shall be - keep enough suction superheat, minimum taken: suction superheat should be above 5 K. - the idle compressor should keep running time to time. AB243586442698en-000601 © Danfoss | Climate Solutions | 2022.03... -
Page 51: System Design Recommendations
• For horizontal/vertical discharge gas velocity: no 1.5 m/s; more than 15 m/s; • For suction header gas velocity: no more than • For vertical suction gas velocity: no less than 4 m/s. 7.6 m/s; © Danfoss | Climate Solutions | 2022.03 AB243586442698en-000601... -
Page 52: Expansion Device
A recommended suction of returning refrigerant and oil to each individual header design is shown below. Main suction line Suction gas to Suction gas compressor Oil injection port AB243586442698en-000601 © Danfoss | Climate Solutions | 2022.03... -
Page 53: Oil Level Regulator
Passive system To condenser Non-return valve Oil separator with Non-return valve oating-ball valve Oil equalization line Compressor 1 Compressor 2 Oil lter Suction header From evaporator © Danfoss | Climate Solutions | 2022.03 AB243586442698en-000601... -
Page 54: Oil Separator And Reservior For Active System
(additional oil separator and oil reservoir installed loss of efficiency due to hot gas bypass. in low pressure side). From an application point AB243586442698en-000601 © Danfoss | Climate Solutions | 2022.03... -
Page 55: Installation And Service
Therefore a installation (i.e.: oil analysis). © Danfoss | Climate Solutions | 2022.03 AB243586442698en-000601... -
Page 56: Ordering Information
Grommets Sleeve 2"1/4 Rotolock - 1"5/8 ODF Teflon seal Φ 50.8 mm Note: for kit 7777049, items 6-7 are not needed for active manifolding. Please leave these when assembling. AB243586442698en-000601 © Danfoss | Climate Solutions | 2022.03... -
Page 57: Tandem Unit Mlm/Mlz116
Note: The dimensions are external diameters. Active system (50 Hz) excluding non-return valve, oil separator/reservoir and oil regulator. The compressors shown here are brazed version, but could also work with rotolock version. © Danfoss | Climate Solutions | 2022.03 AB243586442698en-000601... -
Page 58: Compressor Mounting
1”3/8. To fix this oil connection equalization Rotolock, the adaptor sleeves : 2”1/4 - 1”3/8 and Teflon seals , included in kit 7777041 must be used. Tightening torque 145 Nm AB243586442698en-000601 © Danfoss | Climate Solutions | 2022.03... -
Page 59: Trio Unit Mlm/Mlz116
Note: The dimensions are external diameters. Active system (50 Hz) excluding non-return valve, oil separator/reservoir and oil regulator. The compressors shown here are brazed version, but could also work with rotolock version. © Danfoss | Climate Solutions | 2022.03 AB243586442698en-000601... -
Page 60: Compressor Mounting
, flat washers , washers and and grommets , provided in kit 7777040. Ø 10 Ø 25 Supplied with kit 7777045 Included in kit 7777049 Not supplied AB243586442698en-000601 © Danfoss | Climate Solutions | 2022.03... -
Page 61: Quadro Unit Mlz/Mlz116
Note: The dimensions are external diameters, for quadro systems, it is necessary to add support at discharge line. Active system (50 Hz) excluding non-return valve, oil separator/reservoir and oil regulator. The compressors shown here are brazed version, but could also work with rotolock version. © Danfoss | Climate Solutions | 2022.03 AB243586442698en-000601... -
Page 62: Compressor Mounting
, flat washers , washers and and the grommets , provided in kit 7777041. Ø 10 Ø 25 Supplied with kit 7777045 Included in kit 7777041 Not supplied AB243586442698en-000601 © Danfoss | Climate Solutions | 2022.03... - Page 64 Danfoss Light Commercial Refrigeration Compressors Our products can be found in a variety of applications such as rooftops, chillers, residential air conditioners, heatpumps, coldrooms, supermarkets, milk tank cooling and industrial cooling processes. © Danfoss | Climate Solutions | 2022.03 AB243586442698en-000601...
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