Danfoss SH485 User Manual Download

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Danfoss scroll compressors

SH090 to SH485 - single

50 Hz - 60 Hz - R410A

Application guidelines

http://cc.danfoss.com

Summary of Contents for SH485

Page 1: ...Danfoss scroll compressors SH090 to SH485 single 50 Hz 60 Hz R410A Application guidelines http cc danfoss com ...

Page 2: ......

Page 3: ...lication envelope 24 Discharge temperature protection 25 High and low pressure protection 25 Cycle rate limit 26 System design recommendations 27 General 27 Essential piping design recommendations 27 Refrigerant charge limit 28 Off cycle migration 29 Liquid flood back 31 Specific application recommendations 32 Low ambient application 32 Low load operation 33 Brazed plate heat exchangers 33 Electro...

Page 4: ...strates the entire compression process The centre of the orbiting scroll in grey traces a circular path around the centre of the fixed scroll in black This movement creates symmetrical compression pockets between the two scroll elements Low pressure suction gas is trapped within each crescent shaped pocket as it gets formed continuous motion of the orbiting scroll serves to seal the pocket which d...

Page 5: ...higher resistance to liquid slugging The SH485 compressors include additional features for enhanced protection and efficiency integrated discharge gas temperature protection intermediate discharge valves for higher seasonal efficiency patented gas path flow SH180 240 295 380 485 SH090 105 120 140 161 184 Heat shield that lowers the heat transfer between discharge and suction gas and the acoustic l...

Page 6: ... FRCC PC 008 Nomenclature Family lubricant refrigerant SH Scroll POE lubricant for R410A Motor protection L Internal overload protector A Electronic 24V AC B Electronic 110 240V C Customized electrical box Suction and discharge connections A Brazed connections Family lubricant refrigerant Nominal capacity Approvals Voltage Version Evolution index Evolution index A Z A 4 SH A AB Motor voltage code ...

Page 7: ...3 3 64 0 SH120 10 36800 125600 11 25 3 27 11 16 116 90 24 6 3 3 64 0 SH140 12 42300 144400 12 77 3 31 11 30 133 00 27 9 3 3 67 0 SH161 13 47200 161100 14 43 3 27 11 16 151 70 31 9 3 3 69 0 SH184 15 54000 184300 16 45 3 28 11 19 170 30 35 8 3 6 71 5 SH180 15 54300 185300 16 58 3 27 11 16 170 20 35 7 6 7 108 0 SH240 20 72200 246400 22 10 3 27 11 16 227 60 47 8 6 7 108 0 SH295 25 88500 302000 27 21 3...

Page 8: ...7 Oil sight glass 1 137 2 189 230 230 190 5 190 5 180 154 1 158 2 173 30 30 60 4 x hole Ø 19 05 1 SH090 2 SH105 120 140 161 except code 3 All dimensions in mm Ø 22 1 Ø 29 2 Ø 35 1 235 2 278 1 94 2 101 1 94 2 101 Equalisation line 15 mm HM 8 bolt Lock washer Flat washer Steel mounting sleeve Rubber grommet Nut Application Guidelines ...

Page 9: ...3 1 278 2 300 1 101 2 108 1 101 2 108 1 509 2 525 1 540 2 555 1 155 2 170 157 4 x holes Ø19 05 230 230 190 5 190 5 173 1 154 2 159 200 30 30 Ø 22 Ø 35 60 1 SH140 161 code 3 2 SH184 All dimensions in mm Equalisation line 15 mm HM 8 bolt Lock washer Flat washer Steel mounting sleeve Rubber grommet Nut Application Guidelines ...

Page 10: ...e Rubber grommet Nut 27 5 mm Compressor base plate Ø265 9 Discharge 1 1 8 Suction 1 5 8 Ø257 4 Ø317 5 653 618 187 301 5 214 345 4 195 170 304 8 370 8 353 212 109 183 60 60 428 279 4 76 6 4x rigid spacer 29 5 4x holes Ø19 All dimensions in mm 92 5 531 5 HM 8 bolt Lock washer Flat washer Rigid spacer Nut Nut 29 5 mm Application Guidelines ...

Page 11: ...ng sleeve Rubber grommet Nut 27 5 mm Compressor base plate HM 8 bolt Lock washer Flat washer Rigid spacer Nut Nut 29 5 mm 725 8 667 187 301 5 214 Ø333 2 Ø318 1 All dimensions in mm Suction 1 5 8 Discharge SH380 1 1 8 SH485 1 3 8 524 8 4 holes Ø19 76 6 345 4 279 4 218 6 212 356 195 109 183 60 60 428 304 8 370 8 92 5 Application Guidelines ...

Page 12: ...leeve Rubber grommet Nut 27 5 mm Compressor base plate HM 8 bolt Lock washer Flat washer Rigid spacer Nut Nut 29 5 mm Ø333 2 Ø318 1 277 4 172 2 524 8 76 6 92 5 301 5 667 725 8 Discharge 1 1 8 Suction 1 5 8 60 345 4 279 4 304 8 370 8 356 273 477 202 3 308 8 8 183 202 195 60 4 holes Ø19 43 All dimensions in mm Application Guidelines ...

Page 13: ...ion Guide lines FRCC EC 008 for details The oil drain connection allows oil to be removed from the sump for changing testing etc The fitting contains an extension tube into the oil sump to more effectively remove the oil The connection is a female 1 4 flare fitting incorporating a schrader valve and is mounted on SH180 240 295 380 485 models only Schrader Oil equalisation connection Connection det...

Page 14: ... Ø40 5 mm hole ISO40 for power supply and a Ø16 5 mm knockout ISO16 Terminal box Ø 25 5 mm knockout Power supply Ø 29 mm knockout Ø 40 5 mm hole Ø 16 5 mm knockout Power supply Motor voltage code Code 3 Code 4 Code 6 Code 7 Code 9 50 Hz Nominal voltage 380 400V 3 ph 380 415V 3 ph 230V 3 ph 500V 3 ph Voltage range 342 440 V 342 457V 207 253 V 450 550 V 60 Hz Nominal voltage 200 230V 3 ph 460V 3 ph ...

Page 15: ...tact Safety circuit Thermistor connection Module power IP rating The compressor terminal box according to IEC529 is IP54 for all models when correctly sized IP54 rated cable glands are used First numeral level of protection against contact and foreign objects 5 Dust protected Second numeral level of protection against water 4 Protection against water splashing Black Blue Brown Faston 1 4 tabs Powe...

Page 16: ...SH140 304 64 56 0 24 SH161 315 69 64 0 22 SH184 351 75 71 0 22 SH180 380 78 71 0 19 SH240 485 105 103 0 16 SH295 560 128 112 0 13 SH380 717 170 155 0 09 Motor voltage code 4 380 400 V 3ph 50 Hz 460V 3ph 60hZ SH090 98 22 19 1 47 SH105 142 25 22 1 05 SH120 142 29 24 1 05 SH140 147 30 28 0 92 SH161 158 35 31 0 83 SH184 197 38 6 36 0 83 SH180 170 38 34 0 8 SH240 215 51 49 0 62 SH295 260 62 56 0 52 SH3...

Page 17: ...oft starters are designed to reduce the starting current of 3 phase AC motors they can reduce the inrush current by up to 40 thereby eliminating the detrimental effects of high starting torque surges and costly demand charges from the resultant current spike Danfoss MCI soft start controller When the control voltage is applied to A1 A2 the MCI soft starter will start the motor according to the set...

Page 18: ...itch the HP safety switch the discharge gas thermostat and the motor safety thermostat In specific situations such as winter start operation an eventual LP control for pump down cycles may be temporarily bypassed to allow the system to build pressure But it remains mandatory for compressor protection to apply an LP safety switch The LP safety switch must never be bypassed Pressure settings for the...

Page 19: ...ty switch HP Control device TH Liquid Line Solenoid valve LLSV Discharge gas thermostat thermistor DGT Fused disconnect Q1 Motor safety thermostat thM Compressor motor M Motor Protection Module MPM Thermistor chain S Safety pressure switch LPS Legend A1 A3 A2 MPM S LPS Wiring diagram with pump down cycle LP A1 A3 A2 MPM LPS DGT Wiring diagram with pump down cycle LP S A1 A3 A2 MPM S KS Wiring diag...

Page 20: ...very low level of thermal inertia The motor temperature is being constantly measured by a PTC thermistor loop connected on S1 S2 If any thermistor exceeds its response temperature its resistance increases above the trip level 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 Afte...

Page 21: ...recommended wiring diagrams from section Suggested wiring diagram logic The circuit should be thoroughly checked in order to determine the cause of the phase problem before re energizing the control circuit The phase sequencing and phase loss monitoring functions are active during a 5 sec window 1 second after compressor start up power on L1 L2 L3 Vavg Mean voltage of phases 1 2 3 V1 2 Voltage bet...

Page 22: ...vals certificates Contact Danfoss Products SH090 to 485 Manufacturer s declaration of incorporation Contact Danfoss Products SH090 to 485 Declaration of conformity Contact Danfoss Products Internal free volume without oil litre SH090 12 4 SH105 120 140 161 14 3 SH184 14 6 SH180 31 6 SH240 295 31 0 SH380 34 3 SH485 33 05 Products SH090 105 120 140 161 184 SH180 240 295 SH380 485 Refrigerating fluid...

Page 23: ... R410A is in this regard the best refrigerant As a near azeotropic mixture refrigerant R410A behaves like an homogeneous substance whereas other zeotropic mixtures such as R407C and other blends suffer a temperature glide during phase change that lessens thermal efficiency and makes them difficult to transfer from a container to another Reduced refrigerant mass flow permitted by a higher heat capa...

Page 24: ...ors are designed as 100 suction gas cooled without need for additional fan cooling Ambient temperature has very little effect on the compressor performance Application envelope Compressor ambient temperature POE oil Polyolester oil POE is miscible with HFC s while mineral oil is not but has to be evaluated regarding lubrication ability in compressors POE oil has better thermal stability than refri...

Page 25: ...the compressor should the discharge pressure exceed the values shown in the table section System pressure test The high pressure switch can be set to lower values depending on the application and ambient conditions The HP switch must either be placed in a lockout circuit or consist of a manual reset device to prevent cycling around the high pressure limit If a discharge valve is used the HP switch...

Page 26: ...he service life of the motor compressor unit A three minute 180 sec time out is recommended Note that these two different low pressure switches also require different settings The low pressure pump down switch setting must always be within the operating envelope for example 1 7 bar for R410A The compressor can be operated full time under such condition The minimum low pressure safety switch settin...

Page 27: ...ared to R22 R407C systems To maintain acceptable pressure drops and acceptable minimum gas velocities the refrigerant piping must be reduced in size compared to R22 R407C systems Take care not to create too high pressure drops since in R410A systems the negative impact of high pressure drops on the system efficiency is stronger than in R22 R407C systems Piping should be designed with adequate thre...

Page 28: ...g in a high degree of vapour at the expansion device inlet leading to low efficiency Heat exchangers Refrigerant charge limit Danfoss SH compressors can tolerate liquid refrigerant up to a certain extent without major problems However excessive liquid refrigerant in the compressor is always unfavourable for service life Besides the installation cooling capacity may be reduced because of the evapor...

Page 29: ... solenoid valve Pump down cycle More detailed information can be found in the paragraphs hereafter Please contact Danfoss Technical Support for any deviation from these guidelines Recommended Required No test or additional safeties required Note for special conditions such as low ambient temperature low refrigerant load or brazed plate heat exchangers please refer to corresponding sections REQ REC...

Page 30: ...An external non bleeding check valve may need to be installed SH180 to SH485 SH90 to SH184 The selection of surface sump heater could refer to below principle Compressor Surrounding Ambient Surface Sump Heater Unit has enclosure no wind 48W SSH Unit has no enclosure with wind 80W SSH Unit has no enclosure wind 5m s ambient temperature 5 C 80W SSH additional SSH thermal insulation Since the total s...

Page 31: ...k may be detected by measuring either the oil sump temperature or the discharge gas temperature If at any time during operations the oil sump temperature drops to within 10K or less above the saturated suction temperature or should the discharge gas temperature be less than 35K above the saturated discharge temperature this indicates liquid flood back Continuous liquid flood back can occur with a ...

Page 32: ...ed machines cycling the fans with a head pressure controller will ensure that the fans remain off until the condensing pressure has reached a satisfactory level Variable speed fans can also be used to control the condensing pressure In water cooled units the same can be performed using a water regulator valve that is also operated by head pressure thereby ensuring that the water valve does not ope...

Page 33: ...ration may lead to liquid refrigerant carry over or flood back or excessively wet refrigerant return conditions As such reversible cycle applications require specific precautions for ensuring a long compressor life and satisfactory operating characteristics Regardless of the refrigerant charge in the system specific tests for repetitive flood back are required to confirm whether or not a suction a...

Page 34: ...nstalled in parallel in order to limit liquid amount handled per compressor when beginning and ending defrost it is recommended to avoid running part load keep all compressors running or keep them stopped when moving 4 way valves For further details please refer to Parallel application guidelines FRCC PC 008 EXV can also be opened when compressors are stopped and before 4 way valve is moving in or...

Page 35: ...a suction accumulator becomes mandatory Suction line accumulator Apart from residual moisture in the system after commissioning water could also enter the refrigeration circuit during operation Water in the system shall always be avoided Not only because it can quickly lead to electrical failure sludge in sump and corrosion but in particular because it can cause serious safety risks Common causes ...

Page 36: ...s exhibit very little increased start up transient sound If a compressor is miswired the compressor will run in reverse Reverse compressor rotation is characterised by an objectionable sound To correct reverse rotation disconnect power and switch any two of the three power leads at the unit contactor Never switch leads at the compressor terminals Compressor acoustic hoods have been developed to me...

Page 37: ...solators on the compressor base plate or on the frame of a manifolded unit is very effective in reducing vibration being transmitted from the compressor s to the unit Once the supplied rubber grommets have been properly mounted vibrations transmitted from the compressor base plate to the unit are held to a strict minimum In addition it is extremely important that the frame supporting the mounted c...

Page 38: ...d possible personal injury as a result Never apply force to the terminal box with the intention of moving the compressor as the force placed upon the terminal box can cause extensive damage to both the box and the components contained inside Each SH compressor is shipped with printed Instructions for installation These instructions can also be downloaded from our website www danfoss com or directl...

Page 39: ...5 Compressors SH180 240 295 380 485 come delivered with rigid mounting spacers for parallel mounting If used in single applications the compressor must be mounted with the flexible grommets as available in accessory conversion kit 8156138 The grommets must be compressed until contact between the flat washer and the steel mounting sleeve is established The grommets attenuate to a great extent the t...

Page 40: ... and to ensure that no foreign debris remains within the tubing Only refrigerant grade fittings should be used and these must be of both a design and size to allow for a minimum pressure drop through the completed assembly Follow the brazing instructions on next pages Never drill holes into parts of the pipe work where filings and particles can not be removed Brazing and soldering When brazing cop...

Page 41: ...on of the torch has to be as described on the picture and maximum brazing time should be less than 2 minutes to avoid NRVI damages Ensure that no flux is allowed to enter into the tubing or compressor Flux is acidic and can cause substantial damage to the internal parts of the system and compressor The polyolester oil used in SH compressors is highly hygroscopic and will rapidly absorb moisture fr...

Page 42: ...tem Connect a vacuum pump to both the LP and HP sides Evacuate the system to a pressure of 500 μm Hg 0 67 mbar absolute Do not use a megohm meter nor apply power to the compressor while it is under vacuum as this may cause internal damage Leak detection Vacuum evacuation and moisture removal Filter driers A properly sized and type of drier is required Important selection criteria include the drier...

Page 43: ...esistance must be higher than 1 megohm when measured with a 500 volt direct current megohm tester Each compressor motor is tested at the factory with a high potential voltage hi pot that exceeds the UL requirement both in potential and in duration Leakage current is less than 5 mA SH scroll compressors are configured with the pump assembly at the top of the shell and the motor below As a result th...

Page 44: ...600 992 122 SH295 760 600 992 125 SH380 760 600 992 172 SH485 760 600 992 189 Compressor models Nbr Length mm Width mm Height mm Gross weight kg Static stacking pallets SH090 8 1150 950 680 494 2 SH105 8 1150 950 750 544 2 SH120 8 1150 950 750 544 2 SH140 8 1150 950 750 566 2 SH161 8 1150 950 750 582 2 SH184 8 1150 950 750 606 2 SH180 6 1150 965 768 685 2 SH240 6 1150 965 768 683 2 SH295 6 1150 96...

Page 45: ...20H0215 120H0217 SH120 Brazed Flexible Internal 120H0011 120H0013 120H0017 120H0019 SH140 Brazed Flexible Internal 120H0199 120H0201 120H0205 120H0207 SH161 Brazed Flexible Internal 120H0021 120H0023 120H0027 120H0029 SH184 Brazed Flexible Internal 120H0359 120H0361 120H0365 120H0367 SH180 Brazed Rigid Module 24V AC 120H0265 120H0267 120H0271 Brazed Rigid Module 110 240V 120H0273 120H0275 120H0277...

Page 46: ...SH184 Brazed Flexible Internal 120H0360 120H0362 120H0368 SH180 Brazed Rigid Module 24V AC 120H0266 120H0268 120H0272 Brazed Rigid Module 110 240V 120H0274 120H0276 120H0280 SH240 Brazed Rigid Module 24V AC 120H0290 120H0292 120H0296 Brazed Rigid Module 110 240V 120H0298 120H0300 120H0304 SH295 Brazed Rigid Module 24V AC 120H0852 120H0826 120H0842 Brazed Rigid Module 110 240V 120H0854 120H0828 120...

Page 47: ...k 10 P03 8153006 Solder sleeve P03 2 1 4 Rotolock 1 5 8 ODF Models with 2 1 4 rotolock connection Multipack 10 P05 8153012 Solder sleeve P05 1 1 4 Rotolock 7 8 ODF Models with 1 1 4 rotolock connection Multipack 10 P07 8153013 Solder sleeve P07 1 3 4 Rotolock 7 8 ODF Models with 1 3 4 rotolock connection Multipack 10 P08 8153005 Solder sleeve P08 2 1 4 Rotolock 1 3 8 ODF Models with 2 1 4 rotolock...

Page 48: ...kit MCI 25 C SH105 120 140 161 184 Single pack 1 MCI 50 CM 037N0401 Electronic soft start kit MCI 50 C SH 180 240 295 380 Single pack 1 MCD201 055 175G5205 Electronic soft starter MCD201 055 T6 CV1 SH485 Single pack 1 Type Code n Description Application Packaging Pack size 7703008 Valve set V02 1 3 4 1 1 8 V05 1 1 4 7 8 SH090 Multipack 6 7703392 Valve set V10 1 3 4 1 3 8 V05 1 1 4 7 8 SH105 to 184...

Page 49: ...ackaging Pack size 120Z0388 80W 24V surface sump heater CE and UL SH090 105 120 140 161 184 Multipack 8 120Z0389 80W 230V surface sump heater CE and UL Multipack 8 120Z0390 80W 400V surface sump heater CE and UL Multipack 8 120Z0391 80W 460V surface sump heater CE and UL Multipack 8 120Z0402 80W 575V surface sump heater CE and UL Multipack 8 120Z0360 56W 24V surface sump heater bottom insulation C...

Page 50: ...l compressor SH184 SH161 code 3 SH140 code 3 Single pack 1 120Z0022 Acoustic hood for scroll compressor SH 180 240 295 380 485 Single pack 1 120Z0579 Acoustic hood for scroll compressor SH 380 code 3 Single pack 1 120Z0353 Bottom insulation for scroll compressor SH180 240 295 380 485 Single pack 1 except code 3 Type Code No Description Application Packaging Pack Size 120Z0413 Terminal box cover SH...

Page 51: ...ion Page 14 Updated Wiring connections Page 50 Updated spare part table for Terminal boxes covers and T block connectors Page 14 Updated Motor voltage Page 22 Updated Pressure equipment directive 2014 68 EU Page 41 Updated System pressure test Application Guidelines ...

Page 52: ...d us as distinct variable speed technology specialists Today we operate from engineering and manufacturing facilities spanning across three continents AB243586442172en 001401 Danfoss DCS CC 2020 12 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 ...

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