Related Manuals for Danfoss DSG240
Summary of Contents for Danfoss DSG240
- Page 1 Application Guide Scroll compressors DSG240 to DSG480 R1234ze(E), R515B 50Hz -60Hz www.danfoss.com...
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Page 2: Table Of Contents
Scroll compressors, DSG240 to DSG480 | Contents Contents Safety and warnings Introduction Product description Cut Away DSG240-480 Product identi cation Name Plate Nomenclature Compressors serial number Certi cates, declarations and approvals Certi cates, declarations, and approvals Low voltage directive 2014/35/EU... - Page 3 Scroll compressors, DSG240 to DSG480 | Contents Mechanical connections Connection details Design compressor mounting Design piping Electrical connections Wiring connections Electrical speci cations Application Manage oil in the circuit Manage sound and vibration Manage operating envelope Manage superheat Manage o cycle migration...
- Page 4 Scroll compressors, DSG240 to DSG480 | Contents Online support © Danfoss | Climate Solutions | 2023.01 AB395145937071en-0201 | 4...
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Page 5: Safety And Warnings
The purpose of this guideline is to help customers qualify compressors in the unit. You are strongly advise to follow these instructions. For any deviation from the guidelines, please contact Danfoss Technical Support. In any case, Danfoss accepts no liability as a result of the improper integration of the compressor into the unit by the system manufacturer. -
Page 6: Introduction
Scroll compressors, DSG240 to DSG480 | Introduction Introduction Product description DSG series scroll compressor bene t from an improved design to achieve the highest e ciency and increased life time. Cut Away DSG240-480 Figure 1: Cut Away DSG240-480 Speci c internal non return valve : ZNRV... -
Page 7: Product Identi Cation
Scroll compressors, DSG240 to DSG480 | Product identi cation Product identi cation Name Plate Model number Compressor Serial number DSG480A4ABA Model no : MADE IN FRANCE 380 - 415V 3 ~ 50 Hz Approvals ZK1198782797 Serial no : 460 V 3 ~ 60 Hz LR 391,0A MAX OPER. -
Page 8: Compressors Serial Number
Scroll compressors, DSG240 to DSG480 | Product identi cation Compressors serial number 12345678 Year code 8 Digit serial number Month code Plant assembly line code Table 1: Serial number code legend table Year code Month code Plant assembly line code... -
Page 9: Certi Cates, Declarations And Approvals
Scroll compressors, DSG240 to DSG480 | Certi cates, declarations and approvals Certi cates, declarations and approvals Certi cates, declarations, and approvals DSG scroll compressors comply with the following approvals and certi cates. Certi cates are listed on: Documentation for Commercial Compressor | Danfoss... -
Page 10: Refrigerants
Scroll compressors, DSG240 to DSG480 | Refrigerants Refrigerants General information When choosing a refrigerant, di erent aspects must be taken into consideration: • Legislation (now and in the future) • Safety • Application envelope in relation to expected running conditions •... -
Page 11: Technical Speci Cations
Scroll compressors, DSG240 to DSG480 | Technical speci cations Technical speci cations 50-60 Hz data Single compressor Table 7: Technical speci cation 50-60 Hz data Single compressor Swept volume Displacement (50 Hz) Displacement (60 Hz) Oil charge Net weight Model /rev cu.in/rev... -
Page 12: Performances Data
Scroll compressors, DSG240 to DSG480 | Performances data Performances data R1234ze(E) 50-60 Hz, Single compressor Table 8: 50-60 Hz R1234ze(E), Single compressor Nominal cooling capacity Power input E.E.R. Model Btu/h Btu/h/W DSG240 53720 183298 15.6 3.45 11.77 DSG295 65875 224772 19.3... -
Page 13: Tandem And Trio Performances
Scroll compressors, DSG240 to DSG480 | Performances data For regular updates and detailed capacities, please refer to Coolselector®2. Tandem and trio performances The impact of manifolding on compressor performances depends widely of the customer system itself. Therefore, it would be unrealistic to provide data that corresponds accurately to a particular system. In rst approach, to support compressors selection at full load, the manifold performances can be considered as the sum of capacities of the compressors composing the manifold. -
Page 14: Sound And Vibration Data
Scroll compressors, DSG240 to DSG480 | Sound and vibration data Sound and vibration data Typical sounds and vibrations in systems can be broken down into the following three categories: • Sound radiation (through air) • Mechanical vibrations (through parts and structure) •... -
Page 15: Operating Envelope Data
Scroll compressors, DSG240 to DSG480 | Operating envelope data Operating envelope data Operating envelope Figure 2: R1234ze(E) / R515B DSG240 to DSG480 Evaporating temperature (°F) SH = 5K (9°F) SH = 10K (18°F) Evaporating temperature (°C) Danfoss OE-000006 Pressure settings... -
Page 16: Dimensions
Scroll compressors, DSG240 to DSG480 | Dimensions Dimensions Single compressors Figure 3: Outline drawing 1 Figure 4: Outline drawing 2 øD øD Danfoss Danfoss Di-8556316 Di-8556321 Table 11: Single compressor Compressor Outline drawing no. model inch inch inch inch inch... -
Page 17: Mechanical Connections
Scroll compressors, DSG240 to DSG480 | Mechanical connections Mechanical connections Connection details Table 12: Connection details Connection Details DSG240-295 DSG380-480 Suction connection Brazed 2"1/8 Brazed 2" 5/8 Discharge connection Brazed 2"1/8 Brazed 2" 1/8 Oil sight glass Threaded (1"1/8 – 18 UNEF) Oil equalization connection 1/2"... -
Page 18: Design Piping
Scroll compressors, DSG240 to DSG480 | Mechanical connections Figure 6: DSG parallel mounting HM 10 x 30 class 10.9, Tightening torque 50 Nm HM 10 x 100 class 10.9, Tightening torque 50 Thickness: 6 mm (0.24 inch) Included in tandem/trio kit... - Page 19 Scroll compressors, DSG240 to DSG480 | Mechanical connections Figure 7: Piping practices - Evaporator Evaporator CC-000204 0.5% slope 4m/s or more 8 to 12 m/s To condenser U-trap, as short as possible 4 m* Max. 4 m* Figure 8: Piping practices - Condenser...
- Page 20 Suitable oil management, with no mechanical components or pressure equalisation line is created. The active components in this oil balancing system are calibrated and quali ed by Danfoss Commercial Compressors. (Refer to the restrictor and reducer tting drawings) Restrictor and reducer tting won’t be provided by Danfoss, but all necessary drawings are available in the portal.
- Page 21 Scroll compressors, DSG240 to DSG480 | Mechanical connections Tandem assemblies Figure 9: Outline drawing 1 Figure 10: Outline drawing 2 300 mm 300 mm (11.81 in.) (11.81 in.) Minimum mandatory Minimum mandatory straight distance straight distance 1/2" 1/2" Table 13: Tandem assemblies...
- Page 22 Scroll compressors, DSG240 to DSG480 | Mechanical connections Trio assemblies Figure 11: Trio assemblies 300 mm Minimum mandatory (11.81 in.) straight distance 1/2" Table 14: Trio assemblies Composi‐ Outline Tandem Mounting tion Cp1 + Suction Discharge drawing model kit code...
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Page 23: Electrical Connections
Scroll compressors, DSG240 to DSG480 | Electrical connections Electrical connections Wiring connections According to compressor model, electrical power is connected to the compressor terminals either by M5 studs and nuts. The maximum tightening torque is 3 Nm. Cable gland or similar protection component must be used on electrical box's knockouts to against accidental contact with electrical parts inside. -
Page 24: Electrical Speci Cations
Module power N S1 S2 M1 M2 Electrical speci cations Motor voltage Danfoss scroll compressors DSG are available in di erent motor voltages as listed below. Table 15: Motor voltage Motor voltage code Code 4 50 Hz - Nominal voltage... - Page 25 Any compressor damage related to this will not be covered by Danfoss warranty. In the same manner, cables must be selected in a way that ensures the terminal box temperature does not exceed 70°C (158°F).
- Page 26 Use a phase meter to establish the phase orders and connect line phases L1, L2 and L3 to terminals T1, T2 and T3, respectively. Compressor models DSG240 to DSG480 are delivered with an electronic module which provides protection against phase reversal and phase loss at start-up.
- Page 27 Scroll compressors, DSG240 to DSG480 | Electrical connections Figure 16: Phase sequence module logic Compressor Phase monitoring start Should one of these parameters be incorrect, the relay would lock out (contact M1-M2 open). The red LED on the module will show the following blink code:...
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Page 28: Application
Mitigations methods: We can consider two means to reduce compressors sound radiations: Acoustic hoods are quick and easy to install and do not increase the overall size of the compressors. Acoustic hoods are available from Danfoss as accessories. Refer to the tables above for sound levels, attenuation and code numbers. -
Page 29: Manage Operating Envelope
Mitigations methods: If an unacceptable level is identi ed, a discharge mu er with the appropriate resonant volume and mass can be installed. Mitigation methods To ensure minimum vibrations transmission to the structure, strictly follow Danfoss mounting requirements (mounting feet, rails etc..). For further information on mounting requirements, please refer to section Design compressor mounting. -
Page 30: Manage Superheat
Scroll compressors, DSG240 to DSG480 | Application Figure 19: Discharge Gas Temperature protection (DGT) Sensor Discharge line Bracket Insulation System evaluation HP and LP must be monitored to respect operating envelope limitations. Table 19: System evaluation Advanced • HP and LP sensor •... - Page 31 Scroll compressors, DSG240 to DSG480 | Application Test, criteria and solutions Table 21: Test, criteria and solutions Test Purpose Test condition Pass criteria Solutions Liquid ood Steady-state Suction superheat >5K (9°F) Check expansion valve se- back test and the oil superheat shall not lection and setting.
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Page 32: Manage O Cycle Migration
Scroll compressors, DSG240 to DSG480 | Application Dilution Chart - DSG240 to DSG480, R1234ze(E) / R515B Figure 21: Dilution Chart (reference at 20 °C / 68 °F ambient temperature) Evaporating Temperature (°F) 12.5 22.5 Safe Area 13.5 Unsafe Area (60 sec max per hour) Evaporating Temperature (°C) -
Page 33: Power Supply And Electrical Protection
Scroll compressors, DSG240 to DSG480 | Application Crankcase heater The surface sump heater are designed to protect the compressor against o -cycle migration of refrigerant. For DSG compressor the use of a belt heater 75W is recommended. Figure 22: DSG240 to 480 The heater must be turned on whenever all the compressors are o . - Page 34 Scroll compressors, DSG240 to DSG480 | Application The wiring diagrams below are examples for a safe and reliable compressor wiring: Figure 23: Compressor model DSG240-295-380 L1 L3 Figure 24: Compressor model DSG480 L1 L3 L2 © Danfoss | Climate Solutions | 2023.01...
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Page 35: Control Logic
Cycle rate limit requirements Danfoss requires a minimum compressor running time of 2 minutes to ensure proper oil return and su cient motor cooling. Additionally, compressor must not exceed 12 starts per hour. 12 starts per hour must not be considered as an average, this is the maximum number of starts acceptable to keep a good regulation accuracy during low load. - Page 36 Scroll compressors, DSG240 to DSG480 | Application The following defrost logic combines both advantages: Figure 25: Defrost logic advantages Cp 1 Cp 2 100% CC-000019 Cp 1 Compressor 1 Cp 2 Compressor 2 Heating Defrost start. Stop all compressors 4 Way Valve (4WV) stays in heating mode. EXV opened to transfer liquid from outdoor to indoor exchanger thanks to pressure di erence.
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Page 37: Reduce Moisture In The System
To achieve this requirement, a properly sized and type of drier is required. Important selection criteria’s include: • driers water content capacity, • system refrigeration capacity, • system refrigerant charge. For new installations of compressors with polyolester oil, Danfoss recommends using the Danfoss DML (100% molecular sieve) solid core lter drier. Assembly line procedure Compressor storage Store the compressor not exposed to rain, corrosive or ammable atmosphere between -35 °C (-31 °F) and 70 °C... - Page 38 A typical content of 30 – 40% Ag (Silver) is recommended by Danfoss. The use of self- ux alloys (as phosphorous alloys) is not recommended by Danfoss. This type of brazing require a higher working temperature, that may overheat the connectors, damaging the thin layer of copper, resulting in phosphides creation and joint zone embrittlement.
- Page 39 Scroll compressors, DSG240 to DSG480 | Application Heat shield For more detailed information see "Brazing technique for compressors connectors" AP192186420580. Before eventual un-brazing of the compressor or any system component, the refrigerant charge must be removed and the installation vacuumed.
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Page 40: Commissioning
If Oil Top-up is needed, it must be done while the compressor is idle. Use the schrader connector or any other accessible connector on the compressor suction line. Always use original Danfoss POE oil 160SZ from new cans. For more detailed information see “Lubricants lling in instructions for Danfoss Commercial Compressors”... -
Page 41: Packaging
Scroll compressors, DSG240 to DSG480 | Packaging Packaging Single pack Table 27: Single pack Length Width Height Gross weight Compressor model inch inch inch DSG240 29.5 29.5 1050 41.3 DSG295 29.5 29.5 1050 41.3 DSG380 29.5 29.5 1050 41.3 DSG480 29.5... -
Page 42: Ordering
Scroll compressors, DSG240 to DSG480 | Ordering Ordering Compressor code numbers Danfoss scroll compressors can be ordered in either industrial packs or in single packs. Please use the code numbers from below tables for ordering. Single pack Table 29: Single pack Code no. - Page 43 Scroll compressors, DSG240 to DSG480 | Ordering Electronic motor protection, module located in terminal box. Electronic motor protection, module located in terminal box. © Danfoss | Climate Solutions | 2023.01 AB395145937071en-0201 | 43...
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Page 44: Accessories And Spare Parts
Scroll compressors, DSG240 to DSG480 | Accessories and spare parts Accessories and spare parts Motor protection modules Table 31: Motor protection modules Code no. Description Application Packaging Pack size 120Z0584 Electronic motor protection module, 24 V AC DSG240-480 Single pack... -
Page 45: Lubricant
Scroll compressors, DSG240 to DSG480 | Accessories and spare parts Lubricant Table 35: Lubricant Code no. Description Packaging Pack size 7754023 POE lubricant, 1 litre can Multipack 120Z0571 POE lubricant, 2.5 litre can Multipack Terminal boxes, covers and T-block connectors Table 36: Terminal boxes, covers and T-block connectors Code no. -
Page 46: Updates
Scroll compressors, DSG240 to DSG480 | Updates Updates Release date Guideline codi cation number List of changes Reason for change (Year/Month) 2022/09 AB395145937071en-000101 First release 2023/01 AB395145937071en-000201 Addition of tandem DSG775E & Modi cation of ap- plication envelope and dilution chart ©... - Page 47 Online support Danfoss o ers a wide range of support along with our products, including digital product information, software, mobile apps, and expert guidance. See the possibilities below. The Danfoss Product Store The Danfoss Product Store is your one-stop shop for everything product related—no matter where you are in the world or what area of the cooling industry you work in.
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