Related Manuals for Danfoss DSH Series
Summary of Contents for Danfoss DSH Series
- Page 1 Application guidelines Danfoss scroll compressors DSH 090 to 485 Single and manifold 50Hz - 60Hz - R410A http://cc.danfoss.com...
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Page 3: Table Of Contents
Content GENERAL INFORMATION ......4 Manage operating envelope ....35 Requirement .............35 High and low pressure protection ....37 Discharge temperature protection ....37 PRODUCT INFORMATION ......5 System evaluation ..........38 Features............5 Test, criteria and solutions ........38 Overview ..............5 Manage superheat ......... 39 How do IDVs work? ........... -
Page 4: General Information
Related instructions are guidelines, please contact Danfoss Technical highlighted with the following icons: Support. In any case, Danfoss accepts no liability as a result of the improper integration This icon indicates instructions to avoid of the compressor into the unit by the system safety risk. -
Page 5: Product Information
Features Overview DSH series scroll compressor benefit from an improved design to achieve the highest efficiency and increased life time. Intermediate discharge valves (IDVs) increase seasonal efficiency Heat shield lowers the heat transfer between discharge and suction gas and the acoustic level... -
Page 6: Compressor Model Designation
Compressor model designation Danfoss scroll compressor DSH for R410A is nomenclature which equals the technical available as single compressor and can be reference as shown on the compressor assembled in tandem or trio combinations. nameplate. Code numbers for ordering are listed The example below presents the compressor in section “Ordering information”. -
Page 7: Technical Specifications
For 60Hz: Evaporating temperature: 7.2°C (45°F), Condensing temperature: 54.4°C (130°F), Superheat: 11.1K (20°F), Subcooling: 8.3K (15°F) COP: Coefficient Of Performance Subject to modification without prior notification. Data given for motor code 4 compressor with above condition, for full data details and capacity tables refer to Coolselector®2 www.coolselector.danfoss.com FRCC.PC.045.A7.02... -
Page 8: 50-60Hz Data Tandem Compressors
For 60Hz: Evaporating temperature: 7.2°C (45°F), Condensing temperature: 54.4°C (130°F), Superheat: 11.1K (20°F), Subcooling: 8.3K (15°F) COP: Coefficient Of Performance Subject to modification without prior notification. Data given for motor code 4 compressor with above condition, for full data details and capacity tables refer to Coolselector®2 www.coolselector.danfoss.com FRCC.PC.045.A7.02... -
Page 9: 50-60Hz Data Tandem And Trios
For 60Hz: Evaporating temperature: 7.2°C (45°F), Condensing temperature: 54.4°C (130°F), Superheat: 11.1K (20°F), Subcooling: 8.3K (15°F) COP: Coefficient Of Performance Subject to modification without prior notification. Data given for motor code 4 compressor with above condition, for full data details and capacity tables refer to Coolselector®2 www.coolselector.danfoss.com FRCC.PC.045.A7.02... -
Page 10: Dimensions
Dimensions Single compressors Ø D Ø D Ø D Ø D Ø D 190.5mm (7.5 inch) 4 x holes Ø19.05mm 190.5mm 30° (0.75 inch) (7.5 inch) 4 x holes Ø19.05mm 30° (0.75 inch) 190.5mm (7.5 inch) 190.5mm (7.5 inch) 30° 30°... -
Page 11: Connection Details
Dimensions Connection Details DSH090 DSH105-120-140-161-184 DSH240-295-381 DSH485 Suction connection Brazed 1"1/8 Brazed 1"3/8 Brazed 1"5/8 Brazed 1"5/8 Discharge connection Brazed 7/8" Brazed 7/8" Brazed 1"1/8 Brazed 1"3/8 Oil sight glass Threaded (1"1/8 – 18 UNEF) Oil equalization connection Rotolock 1"3/4 Rotolock 2"1/4 Oil drain connection None... -
Page 12: Tandem Assemblies
Dimensions Tandem assemblies FRCC.PC.045.A7.02... - Page 13 Dimensions Tandem assemblies Tandem model Composition Outline drawing number mm inch inch inch mm inch inch DSH180E DSH090 + DSH090 850 33.46 15.12 507 19.96 8560115 DSH195U DSH090 + DSH105 850 33.46 15.20 565 22.24 8556233 DSH210U DSH090 + DSH120 850 33.46 15.20...
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Page 14: Trio Assemblies
Dimensions Trio assemblies Trio model Composition Outline drawing number inch inch mm inch inch mm inch 1131 44.53 20.2 569 22.4 515 min 20.28 min 8556195 DSH420 3 x DSH140 1118 44.02 20.2 569 22.4 511 min 20.12 min 8556187... -
Page 15: Electrical Data, Connections And Wiring
Electrical data, connections and wiring Motor voltage Danfoss scroll compressors DSH are available in four different motor voltages as listed below. Motor voltage code Code 3 Code 4 Code 7 Code 9 380-415V-3ph Nominal voltage 380-400V-3ph* 50Hz 342-457V Voltage range***... - Page 16 Electrical data, connections and wiring DSH240-295-381*-485* The terminal box is provided with 2 triple *except code 3 knockouts and 1 single knockout for power supply and 4 double knockouts for the safety Black Blue Brown control circuit. The 3 power supply knockouts accommodate the following diameters: •...
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Page 17: Ip Rating
Any compressor damage related to this will not be covered by Danfoss warranty. In the same precautions must be taken to avoid that the temperature around the compressor and manner, cables must be selected in a way that in the terminal box would rise too much. -
Page 18: Motor Protection
Electrical data, connections and wiring LRA (Locked Rotor Amp) Locked Rotor Amp value is the higher average the starting current. However, in most cases, the current as measured on mechanically blocked real starting current will be lower. A soft starter compressors tested under nominal voltage. - Page 19 Electrical data, connections and wiring PTC overheat of resetting the mains (L-N -disconnect) for approximately 5 sec. A red/green twin LED is visible on the module 40ms 460ms 40ms 460ms Appr. 1 second (except on DSH485-3). A solid green LED denotes a fault free condition.
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Page 20: Approval And Certificates
CE 0062 or CE 0038 or CE0871 All DSH models (European Directive) All DSH models (Underwriters Laboratories) Other approvals / certificates Contact Danfoss Low voltage directive Products DSH models 2014/35/EU Declaration of conformity Contact Danfoss Machines directive Products... -
Page 21: System Design
Design piping General requirements Proper piping practices should be employed to: 2. Avoid condensed liquid refrigerant from draining back to the compressor when stopped 1. Ensure adequate oil return, even under (discharge piping upper loop). For validation tests see section “Manage off cycle migration”. minimum load conditions (refrigerant speed, piping slopes…). -
Page 22: Tandem And Trio Requirements
Design piping Tandem and trio DSH tandem and trio use static oil balancing The discharge line has no impact on oil requirements principle to equalize oil level between the balancing. It is shown with tee, to indicate that compressors by gravity. This is ensured by a both left and right side discharge headers are precise suction and oil equalization piping possible. -
Page 23: Suction Washer Position
Design piping Suction washer position Depending on manifold configuration, it is on certain compressors according to the table. essential to equalize the pressure of compressor Suction washers are included in tandem or trio sumps. Hence, a suction washer must be added accessory kits as described in the illustrations. - Page 24 Design piping Washer Inner Tandem Model Suction From Kit Code No To Order Washer Reference Washer In Suction Of Diameter Left 5312497P03 23mm (0.91inch) DSH105 + DSH184 DSH289U 120Z0693 Right 5312497P03 23mm (0.91inch) Left 5312497P08 27.5mm (1.08inch) DSH140 + DSH161 DSH301U 120Z0692 Right...
- Page 25 Design piping On trio models: Right suction Left suction Right suction Compressor 3 Compressor 1 (Cp3) (Cp1) Compressor 2 Compressor 2 (Cp2) (Cp2) Compressor 1 Compressor 3 (Cp1) (Cp3) Kit code n° Washer Washer Inner Washer in Trio model Suction from to order reference Diameter...
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Page 26: Oil Equalization Design
Design piping Oil equalization design DSH180E to DSH368E The oil level is balanced by a pipe of 1"1/8 oil port as indicated on below picture. To connect equalization line. the equalization line on rotolock connections, the organ pipe adaptor and teflon gasket are In order ensure best oil balance, the organ pipe included in the tandem kit must be used. - Page 27 Design piping DSH360X-424X-456X- The oil level is balanced by a pipe of 1"3/8 oil To connect the equalization line on rotolock 479X-565X equalization line. connections, the organ pipe, adaptor sleeves, Teflon gaskets included in the tandem accessory kit must be used. In order to ensure best oil balance, the organ pipe need to be mounted inside the DSH120, 161 or 184 oil equalization port as indicated on below...
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Page 28: Design Compressor Mounting
Design compressor mounting General requirements Compressors used in single applications must be the manifold assembly must be mounted with mounted with flexible grommets. flexible grommets onto the frame. Compressors used in parallel applications must During operation, the maximum inclination from be mounted with rigid spacers onto rails and the vertical plane must not exceed 3 degrees. -
Page 29: Tandem Requirements
Design compressor mounting Tandem requirements DSH180E to DSH368E The compressors must be mounted with rigid The rigid mounting spacers are included in mounting tandem accessory kits. The rubber grommets are mounting spacers on rails. Rubber grommets and spacers must be installed below the rails. supplied with compressor. -
Page 30: Dsh360X-424X-456X-479X-565X Mounting
Design compressor mounting DSH360X-424X-456X- The large compressor, DSH240, 295 or 381, is mounted with rigid spacers on the rails. Rubber 479X-565X mounting mounted with hexagonal rigid spacers on the grommets and spacers must be installed below rails. The DSH120, 161 or 184 compressor is fixed the rails. -
Page 31: Manage Oil In The Circuit
2. Check that manifold piping is Check oil Lowest foreseeable evaporation, compressors are running and when conform to Danfoss requirements. balancing and highest foreseeable all compressors of the circuit are 3. Integrate a function in control condensation. -
Page 32: Manage Sound And Vibration
Manage sound and vibration Typical sounds and vibrations in systems can be • Gas pulsation (through refrigerant) broken down into the following three categories: The following sections focus on the causes and • Sound radiation (through air) methods of mitigation for each of the above •... - Page 33 Manage sound and vibration Sound power dB(A) Model Composition 50Hz 60Hz DSH180E 2×DSH090 76.0 79.0 DSH195U DSH090 + DSH105 77.0 80.0 DSH210U DSH090 + DSH120 77.0 80.0 DSH210E 2×DSH105 78.0 81.0 DSH230U DSH090 + DSH140 78.0 81.0 DSH240E 2×DSH120 78.0 81.0 DSH251U DSH090 + DSH161...
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Page 34: Mechanical Vibrations
Note: During compressor shut down, a short compressors. Acoustic hoods are available from reverse rotation sound is generated. The duration Danfoss as accessories. Refer to the tables above of this sound depends on the pressure difference for sound levels, attenuation and code numbers. -
Page 35: Manage Operating Envelope
Manage operating envelope Requirement The operating envelopes for DSH scroll Steady-state operation envelope is valid for a compressors are given in the figures below and suction superheat within 5K to 30K range at guarantees reliable operations of the compressor nominal Voltage. for steady-state operation. - Page 36 Manage operating envelope Operating envelope Tandem DSH360X-424X-456X-479X-565X Evaporating temperature (°F) S.H. = 5 K （ 9°F) S.H. = 30 K (54°F） Evaporating temperature (°C) Pressure settings R410A bar(g) 9.9-44.7 Working range high side psig 144-648 bar(g) 1.7-15.5 Working range low side psig 25-225 bar(g)
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Page 37: High And Low Pressure Protection
Manage operating envelope High and low pressure protection Low-pressure (LP) and high-pressure (HP) HP safety switch must be reset manually. safety switches must never be bypassed nor delayed and must stop all the compressors. Depending on application operating envelope, you must define HP and LP limits within LP switch auto restart must be limited to 5 times operating envelope and pressure setting table within 12 hours. -
Page 38: System Evaluation
Manage operating envelope System evaluation HP and LP must be monitored to respect operating envelope limitations. We consider two types of operating envelope management: Basic: Advanced: • HP and LP switch • HP and LP sensor • MOP (Max Operating Pressure) ensured by expansion •... -
Page 39: Manage Superheat
Manage superheat During normal operation, refrigerant enters Liquid flood back can cause oil dilution and, in the compressor as a superheated vapor. Liquid extreme situations lead to liquid slugging that flood back occurs when a part of the refrigerant can damage the compressor. entering the compressor is still in liquid state. - Page 40 Manage superheat Oil temperature sensor must be placed between the oil sight glass and the compressor baseplate. Some thermal paste shall be used to improve the conductivity. The sensor must also be correctly thermally insulated from the ambiance. The Oil superheat is defined as: (Oil temperature - Evaporating temperature) Dilution Chart (reference at 20°C / 68°F ambient temperature) DSH090 to...
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Page 41: Manage Off Cycle Migration
For DSH090-105-120-140-161-184, the surface sump heater is located on the compressor shell. For better standby energy consumption, Danfoss provides 48W and 80W two optional surface sump heater. The selection of surface sump DSH090 to 184... - Page 42 Manage off cycle migration ***Pump-down cycle For more details on pump-down cycle see By decreasing pressure in the sump, pump down section “Control Logic”. system: **** External non-return valve is only for • evacuates refrigerant from oil DSH090-105-120-140-161-184. • set the sump saturating pressure much DSH240-295-381-485 have integrated internal lower than ambiance temperature and due non-return valve...
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Page 43: Provide Power Supply And Electrical Protection
Provide power supply and electrical protection Wiring information Requirements: • HP safety switch, DGT (only for DSH090 to • Protect the compressor from short circuit and DSH184) and electronic module relay output overcurrent by a thermal magnetic motor circuit (M1-M2, only for DSH240 to DSH485) must be breaker set to Max. - Page 44 Provide power supply and electrical protection Compressor model DSH240-295-381 UNIT CONTROLLER Legends Fuses ......................F1 Compressor contactor ................KM High pressure safety switch..............HP Safety pressure switch ................LPS Discharge gas thermistor (embedded in compressor) ....DGT Compressor motor ..................M Motor Protection Module ..............MPM Thermistor chain (motor and discharge temperature) ......S Surface sump heater ................SSH Thermal magnetic motor circuit breaker..........
- Page 45 Provide power supply and electrical protection Compressor model DSH485 except code 3 SEPARATE CONTROL SUPPLY CIRCUIT UNIT CONTROLLER Compressor model DSH485 code 3 UNIT CONTROLLER Legends Fuses ......................F1 Compressor contactor ................KM High pressure safety switch..............HP Safety pressure switch ................LPS Discharge gas thermistor (embedded in compressor) ....DGT Compressor motor ..................
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Page 46: Soft Starts
3-phase AC motors. proper discharge valve closing. Soft starter must be set so compressor start-up Danfoss MCI and MCD soft-start controller are time is always less than 0.5 seconds to ensure available as accessories: MCI and MCD can reduce proper lubrication of compressor parts. -
Page 47: Control Logic
12 hours, then protection, DGT)* manual reset. * only for DSH240 to DSH485. Cycle rate limit Danfoss requires a minimum compressor running Additionally, compressor must not exceed 12 requirements time of 2 minutes to ensure proper oil return and starts per hour. -
Page 48: Pump-Down Logic Recommendations
Control logic Pump-down logic Pump down is initiated prior to shutting • One shot pump down (preferred): when recommendations down the last compressor on the circuit by last compressor of the circuit stops, suction de-energizing a liquid line solenoid valve presssure is decreased 1.5bar (22psi) below or closing electronic expansion valve. -
Page 49: Reduce Moisture In The System
For new installations with DSH compressors with and type of drier is required. Important selection polyolester oil, Danfoss recommends using the criteria’s include: Danfoss DML (100% molecular sieve) solid core • driers water content capacity, filter drier. • system refrigeration capacity, •... -
Page 50: Integration Into Systems
Handling Each Danfoss DSH scroll compressor is • For tandem and trio assemblies, use a spreader equipped with two lift rings on the top shell. bar and all compressor rings as shown in picture •... -
Page 51: Piping Assembly
Assembly line procedure Piping assembly Good practices for piping assembly is a pre-requisite to ensure compressor life time (system cleanliness, brazing procedure etc.) System cleanliness Circuit contamination possible cause: Requirement: Brazing and welding oxides During brazing, flow nitrogen through the system. Remove any particles and burrs generated by tube Particles and burrs cutting and hole drilling. -
Page 52: Vacuum Evacuation And Moisture Removal
Assembly line procedure Vacuum evacuation and Recommendations: moisture removal Requirements: • Energized heaters improve moisture removal. • Never use the compressor to evacuate the • Alternate vacuum phases and break vacuum system. with Nitrogen to improve moisture removal. • Connect a vacuum pump to both the LP and HP sides. -
Page 53: Commissioning
• Correct superheat and subcooling. compressor suction line. Always use original • Current draw of individual compressors within Danfoss POE oil 160SZ from new cans. acceptable values (max operating current). For more detailed information see “Lubricants • No abnormal vibrations and noise. -
Page 54: Ordering Information
Dismantal and disposal Danfoss recommends that compressors and compressor oil should be recycled by a suitable company at its site. FRCC.PC.045.A7.02... -
Page 55: Packaging
Packaging Single pack Length Width Height Gross weight Compressor model inch inch inch DSH090 22.2 18.5 28.3 DSH105 22.2 18.5 28.3 DSH120 22.2 18.5 28.3 DSH140 22.2 18.5 28.3 DSH161 22.2 18.5 28.3 DSH184 22.2 18.5 28.3 DSH240 29.9 23.6 35.4 DSH295 29.9... -
Page 56: Ordering Codes
Ordering codes Compressor code numbers Danfoss scroll compressors DSH can be ordered For compressors DSH240 to DSH485 use in single in either industrial packs or in single packs. Please applications, flexible grommets are available as use the code numbers from below tables for accessory kit 8156138. - Page 57 Ordering codes Industrial pack Code no. Motor Compressor model Connections protection 380-415/3/50 200-230/3/60 575/3/60 380-400/3/60 460/3/60 DSH090 Brazed Internal 120H1181 120H1183 120H1185 120H1187 DSH105 Brazed Internal 120H1189 120H1191 120H1193 120H1195 DSH120 Brazed Internal 120H1197 120H1199 120H1201 120H1203 DSH140 Brazed Internal 120H1205 120H1207 120H1209...
- Page 58 Ordering codes Tandem kits By default, DSH tandems and trios are not For DSH240/295/381/485 you will need in factory-built. To complete an assembly in the addition one mounting kit per compressor. field, you will need: (7777045 for 50Hz application, 120Z0495 for - Tubings, according to specific outline drawings.
- Page 59 Ordering codes Trio kits By default, DSH tandems and trios are not For DSH240/295/381/485 you will need in factory-built. addition one mounting kit per compressor. To complete an assembly in the field, you will (7777045 for 50Hz application, 120Z0495 for need: 60Hz) - Tubings, according to specific outline drawings.
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Page 60: Accessories
Accessories Solder sleeve adapter set Code no. Description Application Packaging Pack size 120Z0125 Rotolock adaptor set (1"3/4 ~ 1"1/8) , (1"1/4 ~ 7/8") DSH090 Multipack 120Z0405 Rotolock adaptor set (1"3/4 ~ 1"3/8) , (1"1/4 ~ 7/8") DSH105 to 184 Multipack 7765028 Rotolock adaptor set (2"1/4 ~ 1"5/8) , (1"3/4 ~ 1"1/8) DSH240-295-381... - Page 61 Accessories Rotolock nut Code no. Description Application Packaging Pack size 8153123 Rotolock nut,1"1/4 Models with 1-1/4" rotolock connection Multipack 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 Rotolock service valve set Code no.
- Page 62 Accessories Surface sump heaters Code no. Description Application Packaging Pack size 120Z0667 48W 24V surface sump heater CE and UL Single pack 120Z0668 48W 230V surface sump heater CE and UL Single pack 120Z0669 48W 400V surface sump heater CE and UL Single pack 120Z0670 48W 460V surface sump heater CE and UL...
- Page 63 Pack Size 8156019 Sight glass with gaskets (black & white) Multipack 8156129 Gasket for oil sight glass, 1"1/8 (white teflon) Multipack 7956005 Gasket for oil sight glass, 1"1/8 (white teflon) Multipack 8154001 Danfoss Commercial Compressors blue spray paint Single pack FRCC.PC.045.A7.02...
- Page 64 Accessories Tandem kits Code no. Description Application Packaging Pack Size 120Z0634 Suction washer, rigid spacer, organ pipe, gasket DSH180E-210E-240E-280E-322E-368E Single pack 120Z0692 Suction washer, rigid spacer, organ pipe, gasket DSH260U-281U-301U Single pack 120Z0693 Suction washer, rigid spacer, organ pipe, gasket DSH274U-289U Single pack DSH195U-210U-230U-251U-304U-324U-...
- Page 65 Updates Previous Version Current Version • Models - DSH424, DSH479, DSH565 • Updated DSH424, DSH479, DSH565 models to DSH424X, DSH479X, DSH565X and its related data • Added DSH360X, DS456X models • Page12: Tandem assemblies drawing • Page12: Updated drawing number 5 in tandem assemblies drawing •...
- Page 66 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. http://cc.danfoss.com Danfoss Commercial Compressors, BP 331, 01603 Trévoux Cedex, France | +334 74 00 28 29 FRCC.PC.045.A7.02 © Danfoss | DCS (CC) | 2018.03...