Danfoss DSH Series Instruction Manual

Danfoss scroll compressors
DSH 090 to 485
Single and manifold
50Hz - 60Hz - R410A
Application guidelines
http://cc.danfoss.com

Content
GENERAL INFORMATION.........................4
PRODUCT INFORMATION ........................5
Features......................................................5
Overview...................................................................... 5
How do IDVs work?................................................... 5
Compressor model designation ..............6
Nomenclature ............................................................ 6
Technical specifications............................7
50-60Hz data Single compressor........................ 7
50-60Hz data Tandem compressors.................. 8
50-60Hz data Tandem and trios .......................... 9
Dimensions ..............................................10
Single compressors................................................10
Connection Details................................................. 11
Tandem assemblies ............................................... 12
Trio assemblies......................................................... 14
Electrical data, connections and wiring15
Motor voltage........................................................... 15
Wiring connections................................................ 15
IP rating....................................................................... 17
Terminal box temperature................................... 17
Three phase electrical characteristics............. 17
Motor protection..................................................... 18
Approval and certificates ...................... 20
Low voltage directive............................................20
Machines directive .................................................20
Pressure equipment directive............................20
Internal free volume...............................................20
SYSTEM DESIGN......................................21
Design piping ..........................................21
General requirements........................................... 21
Tandem and trio requirements..........................22
Suction washer position.......................................23
Oil equalization design.........................................26
Design compressor mounting .............. 28
General requirements...........................................28
Single requirements...............................................28
Tandem requirements...........................................29
DSH180E to DSH368E mounting.......................29
DSH360X-424X-456X-479X-565X mounting..30
DSH482 to DSH1455 mounting..........................30
Manage oil in the circuit .........................31
Requirement.............................................................31
System evaluation .................................................. 31
Test, criteria and solutions...................................31
Manage sound and vibration................ 32
Compressor sound radiation..............................32
Mechanical vibrations...........................................34
Gas pulsation............................................................34
Manage operating envelope................. 35
Requirement.............................................................35
High and low pressure protection....................37
Discharge temperature protection .................. 37
System evaluation ..................................................38
Test, criteria and solutions...................................38
Manage superheat ................................. 39
Requirement.............................................................39
System evaluation ..................................................39
Test, criteria and solutions...................................39
Manage off cycle migration....................41
Requirement............................................................. 41
System evaluation .................................................. 41
Provide power supply and electrical
protection ............................................... 43
Wiring information.................................................43
Soft starts...................................................................46
Control logic ............................................47
Safety control logic requirements....................47
Cycle rate limit requirements .............................47
Oil management logic recommendations .... 47
Defrost logic recommendations / Reversible
systems ....................................................................... 47
Pump-down logic recommendations.............48
Reduce moisture in the system............. 49
Requirements...........................................................49
Solutions.....................................................................49
INTEGRATION INTO SYSTEMS.............. 50
Assembly line procedure....................... 50
Compressor storage...............................................50
Compressor holding charge ...............................50
Handling ....................................................................50
Piping assembly.......................................................51
System pressure test and leak detection .......51
Vacuum evacuation and moisture removal .52
Refrigerant charging..............................................52
Dielectric strength and insulation resistance
tests..............................................................................52
Commissioning....................................... 53
Preliminary check....................................................53
Initial start-up...........................................................53
System monitoring.................................................53
ORDERING INFORMATION ................... 54
Dismantal and disposal ......................... 54
Packaging ............................................... 55
Ordering codes....................................... 56
Accessories.............................................. 60
3FRCC.PC.045.A7.02

PRODUCT INFORMATIONSYSTEM DESIGNINTEGRATION INTO SYSTEMORDERING INFORMATION GENERAL INFORMATION
General Information
Danfoss scroll compressors are designed and
manufactured according to the state of the
art and to valid European and US regulations.
Particular emphasis has been placed on
safety and reliability. Related instructions are
highlighted with the following icons:
This icon indicates instructions to avoid
safety risk.
This icon indicates instructions to avoid
reliability risk.
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.
R
4FRCC.PC.045.A7.02

GENERAL INFORMATIONSYSTEM DESIGNINTEGRATION INTO SYSTEMORDERING INFORMATION PRODUCT INFORMATION
DSH series scroll compressor benefit from
an improved design to achieve the highest
efficiency and increased life time.
Features
Danfoss Intermediate Discharge Valves (IDVs)
are located close to the discharge side of the
compressor. They reduce excessive compression
of refrigerant under part-load conditions while
maintaining the same cooling capacity. The IDVs
open when discharge pressure falls below the
built-in optimization point. They adapt the effort
of the motor to the varying load and pressure
conditions in the system, thus reducing the effort
of the motor and its electrical consumption
and improving the system’s seasonal energy
efficiency.
How do IDVs work?
DSH090-105-120-140-161-184 DSH240-295-381-485
Overview
Intermediate discharge valves (IDVs)
increase seasonal efficiency
Heat shield lowers the heat transfer
between discharge and suction gas
and the acoustic level
Internal Non Return Valve (INRV)
prevents excessive leak rate from
high pressure side
Lead free polymer bearings improve
behavior under poor lubrication
conditions
Integrated discharge gas
temperature protection (DGT)
Patented motor cap for optimal
motor cooling and higher
resistance to liquid slugging
Organ pipe master oil circulation
in manifold configuration.
Patented gas path flow with
gas intake design induce higher
resistance to liquid slugging
5FRCC.PC.045.A7.02

GENERAL INFORMATIONSYSTEM DESIGNINTEGRATION INTO SYSTEMORDERING INFORMATION PRODUCT INFORMATION
Compressor model designation
Danfoss scroll compressor DSH for R410A is
available as single compressor and can be
assembled in tandem or trio combinations.
The example below presents the compressor
nomenclature which equals the technical
reference as shown on the compressor
nameplate. Code numbers for ordering are listed
in section “Ordering information”.
Nomenclature
Family, lubricant
& refrigerant
DSH: Scroll, POE lubricant,
for R410A Motor protection
A: Electronic module, 24V AC
B: Electronic module, 110-240V
L: Internal overload protector
Suction and discharge connections
A: Brazed connections
Family,
lubricant
& refrigerant
Nominal
capacity Approvals Voltage Version Evolution index
Evolution index
A~Z
A4DSH AAB485
Motor voltage code
3: 200-230V/3~/60Hz
4: 380-415V/3~/50Hz - 460V/3~/60Hz
for DSH240 and DSH381: 380-400V/3~/50Hz - 460V/3~/60Hz
7: 575V/3~/60Hz
9: for DSH090 to DSH184: 380-400V/3~/60Hz
for DSH240 to DSH485: 380V/3~/60Hz
UL index
Nominal capacity
in thousand Btu/h at 60Hz, R410A,
ARI conditions
6FRCC.PC.045.A7.02

GENERAL INFORMATIONSYSTEM DESIGNINTEGRATION INTO SYSTEMORDERING INFORMATION PRODUCT INFORMATION
Technical specifications
50-60Hz data
Single compressor
Model
Nominal
tons 60Hz Nominal cooling capacity Power input COP E.E.R. Swept volume Displacement Oil charge Net weight 
TR WBtu/h kW W/W Btu/h/W cm3/rev cu.in/rev m3/h cu.ft/h dm3oz kg lbs
50Hz
DSH090 7.5 20050 68413 6.54 3.06 10.46 88.4 5.39 15.4 544 3.0 102 58 128
DSH105 9.0 23580 80457 7.65 3.08 10.52 103.5 6.32 18.0 636 3.3 113 64 141
DSH120 10.0 26790 91410 8.61 3.11 10.62 116.9 7.13 20.3 717 3.3 113 64 141
DSH140 12.0 30370 103625 9.69 3.13 10.69 133 8.12 23.1 816 3.3 113 67 148
DSH161 13.0 34890 119 04 8 11.03 3.16 10.79 151.7 9.26 26.4 932 3.3 113 69 152
DSH184 15.0 39040 133208 12.36 3.16 10.78 170.3 10.39 29.6 1045 3.6 123 71.5 158
DSH240 20.0 52730 179920 17.0 4 3.09 10.56 227.60 13.89 39.6 1398 6.7 229 108 238
DSH295 25.0 64520 220149 20.35 3.17 10.82 276.20 16.85 48.1 1699 6.7 229 111 245
DSH381 30.0 81490 278052 26.21 3.11 10.61 345.00 21.05 60 2119 6.7 229 159 351
DSH485 40.0 103500 353152 32.72 3.16 10.79 442.60 27.01 77 2719 6.7 229 175 386
60Hz
DSH090 7.5 27470 93730 8.55 3.21 10.96 88.4 5.39 18.6 657 3.0 102 58 128
DSH105 9.0 32280 110100 10.01 3.22 11.00 103.5 6.32 21.8 770 3.3 113 64 141
DSH120 10.0 36630 125000 11. 25 3.26 11.11 116.9 7.13 24.6 869 3.3 113 64 141
DSH140 12.0 41510 141600 12.75 3.26 11.11 133 8.12 27.9 985 3.3 113 67 148
DSH161 13.0 47220 16110 0 14.7 3.21 10.96 151.7 9.26 31.9 1127 3.3 113 69 152
DSH184 15.0 53160 181400 16.36 3.25 11.09 170.3 10.39 35.8 1264 3.6 123 71.5 158
DSH240 20.0 71760 244852 22.46 3.20 10.90 227.60 13.89 47.8 1688 6.7 229 108 238
DSH295 25.0 87610 298934 26.96 3.25 11. 09 276.20 16.85 58 2048 6.7 229 111 245
DSH381 30.0 11030 0 376355 34.52 3.20 10.90 345.00 21.05 72.3 2553 6.7 229 159 351
DSH485 40.0 141900 484177 43.66 3.25 11.0 9 442.60 27.01 92.9 3281 6.7 229 175 386
Displacement at nominal speed: 2900rpm at 50Hz, 3500rpm at 60Hz
Net weight with oil charge
TR: Ton of Refrigeration, Standard rating conditions For 50Hz: Evaporating temperature: 5°C (41°F), Condensing temperature: 50°C (122°F), Superheat: 10K (18°F), Subcooling: 0K (0°F)
EER: Energy Efficiency Ratio Refrigerant: R410A 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
7FRCC.PC.045.A7.02

GENERAL INFORMATIONSYSTEM DESIGNINTEGRATION INTO SYSTEMORDERING INFORMATION PRODUCT INFORMATION
Model Composition
Nominal
tons 60Hz Nominal cooling capacity Power input COP E.E.R. Displacement 
TR WBtu/h kW W/W Btu/h/W m3/h cu.ft/h
50Hz
Tandem
DSH180E 2xDSH090 15.0 39739 135590 13.1 3.04 10.36 30.8 1088
DSH195U DSH090 + DSH105 16.5 43237 147526 14.2 3.05 10.40 33.4 118 0
DSH210U DSH090 + DSH120 17. 5 46418 158380 15.1 3.06 10.46 35.7 1261
DSH210E 2xDSH105 18.0 46736 159462 15.3 3.06 10.43 36.0 1271
DSH230U DSH090 + DSH140 19.0 49966 170485 16.2 3.08 10.50 38.5 1360
DSH240E 2xDSH120 20.0 53098 181170 17. 2 3.08 10.53 40.6 1434
DSH251U DSH090 + DSH161 20.5 54446 185768 17.6 3.10 10.57 41.8 1476
DSH260U DSH140 + DSH120 22.0 56646 193275 18.3 3.10 10.57 43.4 1533
DSH274U DSH090 + DSH184 22.5 58558 199801 18.9 3.10 10.57 45.0 1589
DSH281U DSH161 + DSH120 23.5 61125 208558 19.6 3.11 10.62 46.7 1649
DSH280E 2xDSH140 23.5 60193 205380 19.4 3.11 10.60 46.2 1632
DSH289U DSH105 + DSH184 24.0 62056 211737 20.0 3.10 10.58 47.6 1681
DSH301U DSH161 + DSH140 25.0 64673 220663 20.7 3.12 10.65 49.5 1748
DSH304U DSH120 + DSH184 25.0 65238 222590 21.0 3.11 10.62 49.9 1762
DSH322E 2xDSH161 26.5 69152 235947 22.1 3.13 10.70 52.8 1865
DSH324U DSH140 + DSH184 27.0 68785 234695 22.1 3.12 10.64 52.7 1861
DSH345U DSH161 + DSH184 28.0 73265 249979 23.4 3.13 10.69 56.0 1978
DSH360X DSH120 + DSH240 30.0 79520 271330 25.7 3.10 10.57 59.9 2115
DSH368E 2xDSH184 30.0 77377 264 011 24.7 3.13 10.68 59.2 2091
DSH424X DSH184 + DSH240 35.0 90944 310301 29.4 3.09 10.55 69.2 2444
DSH456X DSH161 +DSH295 38.0 99410 339197 31.4 3.17 10.82 74.5 2631
DSH479X DSH184 + DSH295 40.0 102628 350167 32.7 3.14 10.71 77.7 2744
DSH565X DSH184 + DSH381 45.0 1194 45 407547 38.6 3.10 10.57 89.6 3164
60Hz
DSH180E 2xDSH090 15.0 54446 185768 17.1 3.18 10.86 37.2 1314
DSH195U DSH090 + DSH105 16.5 59212 202032 18.6 3.19 10.88 40.4 1427
DSH210U DSH090 + DSH120 17. 5 63523 216741 19.8 3.21 10.94 43.2 1526
DSH210E 2xDSH105 18.0 63979 218296 20.0 3.20 10.90 43.6 1540
DSH230U DSH090 + DSH140 19.0 68359 233242 21.3 3.21 10.95 46.5 1642
DSH240E 2xDSH120 20.0 72601 247713 22.5 3.23 11. 01 49.2 1737
DSH251U DSH090 + DSH161 20.5 74018 252549 23.3 3.18 10.86 50.5 1783
DSH260U DSH140 + DSH120 22.0 77437 264214 24.0 3.23 11.01 52.5 1854
DSH274U DSH090 + DSH184 22.5 79904 272634 24.9 3.21 10.94 54.4 1921
DSH281U DSH161 + DSH120 23.5 83095 283521 26.0 3.20 10.93 56.5 1995
DSH280E 2xDSH140 23.5 82273 280715 25.5 3.23 11.01 55.8 1971
DSH289U DSH105 + DSH184 24.0 84671 288898 26.4 3.21 10.96 57.6 2034
DSH301U DSH161 + DSH140 25.0 87931 300022 27.5 3.20 10.93 59.8 2112
DSH304U DSH120 + DSH184 25.0 88982 303606 27.6 3.22 11.00 60.4 2133
DSH322E 2xDSH161 26.5 93590 319329 29.4 3.18 10.86 63.8 2253
DSH324U DSH140 + DSH184 27.0 93818 320107 29.1 3.22 11.0 0 63.7 2250
DSH345U DSH161 + DSH184 28.0 99477 339414 31.1 3.20 10.93 67.7 2391
DSH360X DSH120 + DSH240 30.0 108390 369852 33.7 3.22 11.00 72.4 2557
DSH368E 2xDSH184 30.0 105363 359499 32.7 3.22 10.99 71.6 2529
DSH424X DSH184 + DSH240 35.0 123796 422391 38.8 3.19 10.88 83.6 2952
DSH456X DSH161 + DSH295 38.0 134830 460034 41.7 3.24 11.0 4 89.9 3175
DSH479X DSH184 + DSH295 40.0 139503 475984 43.3 3.22 10.99 93.8 3313
DSH565X DSH184 + DSH381 45.0 161989 552706 50.9 3.18 10.86 108.1 3818
Displacement at nominal speed: 2900rpm at 50Hz, 3500rpm at 60Hz
Net weight with oil charge
TR: Ton of Refrigeration, Standard rating conditions For 50Hz: Evaporating temperature: 5°C (41°F), Condensing temperature: 50°C (122°F), Superheat: 10K (18°F), Subcooling: 0K (0°F)
EER: Energy Efficiency Ratio Refrigerant: R410A 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
50-60Hz data
Tandem compressors
Technical specifications
8FRCC.PC.045.A7.02

GENERAL INFORMATIONSYSTEM DESIGNINTEGRATION INTO SYSTEMORDERING INFORMATION PRODUCT INFORMATION
50-60Hz data
Tandem and trios
Technical specifications
Model Composition
Nominal
tons 60Hz Nominal cooling capacity Power input COP E.E.R. Displacement 
TR WBtu/h kW W/W Btu/h/W m3/h cu.ft/h
50Hz
Tandem
DSH482 2xDSH240 40.0 104511 356602 34.1 3.07 10.46 79.2 2797
DSH535 DSH240 + DSH295 45.0 116195 396468 37.4 3.11 10.60 87.7 3097
DSH590 2xDSH295 50.0 127879 436335 40.7 3.14 10.72 96.2 3397
DSH620 DSH240 + DSH381 50.0 133012 453850 43.3 3.08 10.49 99.6 3517
DSH675 DSH295 + DSH381 55.0 144696 493717 46.6 3.11 10.60 108.1 3818
DSH725 DSH240 + DSH485 60.0 154824 528275 49.8 3.11 10.62 116.6 4118
DSH760 2xDSH381 60.0 161513 551099 52.4 3.08 10.51 120 4238
DSH780 DSH295 + DSH485 65.0 166508 568141 53.1 3.14 10.71 125.1 4418
DSH865 DSH381 + DSH485 70.0 183325 625524 58.9 3.11 10.61 137 4838
DSH970 2xDSH485 80.0 205137 699948 65.4 3.13 10.70 154 5438
Trio
DSH420 3xDSH140 35.0 89106 304028 29.1 3.07 10.46 69.3 2447
DSH483 3xDSH161 39.0 102367 349277 33.1 3.09 10.56 79.2 2797
DSH552 3xDSH184 44.0 114543 390822 37.1 3.09 10.54 88.8 3136
DSH720 3xDSH240 60.0 154710 527885 51.1 3.03 10.33 118 .8 4195
DSH885 3xDSH295 75.0 189302 645916 61.1 3.10 10.58 144.3 5096
DSH1140 3xDSH381 90.0 239092 815805 78.6 3.04 10.38 180 6357
DSH1245 2xDSH381 + DSH485 100.0 260617 889253 85.1 3.06 10.44 197 6957
DSH1350 DSH381 + 2xDSH485 110.0 282143 962701 91.7 3.08 10.50 214 7557
DSH1455 3xDSH485 120.0 303669 1036149 98.2 3.09 10.56 231 8158
60Hz
Tandem
DSH482 2xDSH240 40.0 142228 485297 44.9 3.17 10.80 95.6 3376
DSH535 DSH240 + DSH295 45.0 157936 538892 49.4 3.20 10.90 105.8 3736
DSH590 2xDSH295 50.0 173643 592487 53.9 3.22 10.99 116 4097
DSH620 DSH240 + DSH381 50.0 180421 615616 57.0 3.17 10.80 120.1 4241
DSH675 DSH295 + DSH381 55.0 196129 6 69211 61.5 3.19 10.89 130.3 4602
DSH725 DSH240 + DSH485 60.0 211737 722468 66.1 3.20 10.93 140.7 4969
DSH760 2xDSH381 60.0 218615 745935 69.0 3.17 10.80 144.6 5107
DSH780 DSH295 + DSH485 65.0 227444 776063 70.6 3.22 10.99 150.9 5329
DSH865 DSH381 + DSH485 70.0 249930 852787 78.2 3.20 10.91 165.2 5834
DSH970 2xDSH485 80.0 281246 959639 87.3 3.22 10.99 185.8 6561
Trio
DSH420 3xDSH140 35.0 121790 415549 38.3 3.18 10.86 83.7 2956
DSH483 3xDSH161 39.0 138543 472710 44.1 3.14 10.72 95.7 3380
DSH552 3xDSH184 44.0 155971 532175 49.1 3.18 10.84 107.4 3793
DSH720 3xDSH240 60.0 210544 718397 67.4 3.12 10.66 143.4 5064
DSH885 3xDSH295 75.0 257048 877073 80.9 3.18 10.84 174 6145
DSH1140 3xDSH381 90.0 323620 110 4224 103.6 3.12 10.66 216.9 7660
DSH1245 2xDSH381 + DSH485 100.0 354525 1209675 112.7 3.15 10.73 237. 5 8387
DSH1350 DSH381 + 2xDSH485 110.0 385430 1315125 121.8 3.16 10.79 258.1 9115
DSH1455 3xDSH485 120.0 416335 1420575 131.0 3.18 10.85 278.7 9842
Displacement at nominal speed: 2900rpm at 50Hz, 3500rpm at 60Hz
Net weight with oil charge
TR: Ton of Refrigeration, Standard rating conditions For 50Hz: Evaporating temperature: 5°C (41°F), Condensing temperature: 50°C (122°F), Superheat: 10K (18°F), Subcooling: 0K (0°F)
EER: Energy Efficiency Ratio Refrigerant: R410A 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
9FRCC.PC.045.A7.02

GENERAL INFORMATIONSYSTEM DESIGNINTEGRATION INTO SYSTEMORDERING INFORMATION PRODUCT INFORMATION
Dimensions
Single compressors
Ø D
H1
4 x holes
Ø19.05mm
(0.75 inch)
L3
L2
190.5mm
(7.5 inch)
190.5mm
(7.5 inch)
L1
30°
30°
H2
H
Ø D
H1
4 x holes
Ø19.05mm
(0.75 inch)
L3
L2
190.5mm
(7.5 inch)
190.5mm
(7.5 inch)
L1
30°
30°
H2
H
Ø D
Ø D
L2
L2
L1 L3
L3
L1
H
H2
H1
H
H2
H1
Ø D
Ø D
L2
L2
L1 L3
L3
L1
H
H2
H1
H
H2
H1
Compressor model
D H H1 H2 L1 L2 L3
Outline drawing number
mm inch mm inch mm inch mm inch mm inch mm inch mm inch
DSH090 243 9.57 485 19.09 235 9.25 451 17.76 180 7.0 9 230 9.06 230 9.06

8560004
DSH105-120-140-161 243 9.57 542 21.34 278 10.94 509 20.04 180*
201** 7.09* 7.91** 230 9.06 230 9.06 8560003 * 8560041 **
DSH184 243 9.57 558 21.97 299 11.77 524 20.63 201 7.91 230 9.06 230 9.06 8560023
DSH240 318 12.52 683 26.89 331 13.03 648 25.51 428 16.85 345 13.58 371 14.61
8556089
DSH295 318 12.52 683 26.89 331 13.03 648 25.51 428 16.85 345 13.58 371 14.61
DSH381 333 13.11 755 29.72 331 13.03 697 27.44 428*
477** 16.85* 18.78** 345 13.58 371 14.61

8556091*
8556059**
DSH485 333 13.11 755 29.72 331 13.03 697 27.4 4 428*
446** 16.85* 17. 56* * 345 13.58 371 14.61 8556133 8556160**
* compressor motor codes 4, 7, 9
** compressor motor code 3
  
10 FRCC.PC.045.A7.02

GENERAL INFORMATIONSYSTEM DESIGNINTEGRATION INTO SYSTEMORDERING INFORMATION PRODUCT INFORMATION
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 Female ¼" Flare incorporating a Schrader valve
Low pressure gauge port (Shrader) Male ¼" Flare incorporating a Schrader valve
Outline  

11FRCC.PC.045.A7.02

GENERAL INFORMATIONSYSTEM DESIGNINTEGRATION INTO SYSTEMORDERING INFORMATION PRODUCT INFORMATION
L1
HH1
D
L
Dimensions
Tandem assemblies
 

H
L
L1
H1
D
D
H
L
L1
H1
D
H
L
L1
H1

H1
H
D
L1
L
12 FRCC.PC.045.A7.02

GENERAL INFORMATIONSYSTEM DESIGNINTEGRATION INTO SYSTEMORDERING INFORMATION PRODUCT INFORMATION
Dimensions
Tandem model Composition
L D H L1 H1
Outline drawing number
mm inch mm inch mm inch mm inch mm inch
DSH180E DSH090 + DSH090 850 33.46 384 15.12 507 19.96
240
min 9.45 min 242 9.53
8560115
DSH195U DSH090 + DSH105 850 33.46 386 15.20 565 22.24 8556233
DSH210U DSH090 + DSH120 850 33.46 386 15.20 565 22.24 8556233
DSH210E DSH105 + DSH105 850 33.46 384 15.12 565 22.24 856 0114
DSH230U DSH090 + DSH140 850 33.46 386 15.20 565 22.24 8556233
DSH240E DSH120 + DSH120 850 33.46 384 15.12 565 22.24 8560114
DSH251U DSH090 + DSH161 850 33.46 386 15.20 565 22.24 8556233
DSH260U DSH140 + DSH120 850 33.46 386 15.20 565 22.24 8556230
DSH274U DSH090 + DSH184 850 33.46 428 16.85 580 22.83 8556232
DSH281U DSH161 + DSH120 850 33.46 386 15.20 565 22.24 8556230
DSH280E DSH140 + DSH140 850 33.46 384 15.12 565 22.24 8560114
DSH289U DSH105 + DSH184 850 33.46 428 16.85 580 22.83 8556231
DSH301U DSH161 + DSH140 850 33.46 386 15.20 565 22.24 8556230
DSH304U DSH120 + DSH184 850 33.46 428 16.85 580 22.83 8556231
DSH322E DSH161 + DSH161 850 33.46 384 15.12 565 22.24 856 0114
DSH324U DSH140 + DSH184 850 33.46 428 16.85 580 22.83 8556231
DSH345U DSH161 + DSH184 850 33.46 428 16.85 580 22.83 8556231
DSH368E DSH184 + DSH184 850 33.46 428 16.85 580 22.83 8560113
DSH360X DSH120 + DSH240 903 35.55 533 20.98 731 28.78
359
min 14.13 min 211 8.31
8560128
DSH424X DSH184 + DSH240 903 35.55 533 20.98 731 28.78 8556259
DSH456X DSH161 + DSH295 903 35.55 533 20.98 731 28.78 8560128
DSH479X DSH184 + DSH295 903 35.55 533 20.98 731 28.78 8556259
DSH565X DSH184 + DSH381 903 35.55 533 20.98 803 31.61 8556260
DSH482 DSH240 + DSH240 1025 40.35 527 20.75 731 28.78
535
min 21.06 min
211 8.31

8556112
DSH535 DSH240 + DSH295 1025 40.35 527 20.75 731 28.78 8556112
DSH590 DSH295 + DSH295 1025 40.35 527 20.75 731 28.78 8556112
DSH620 DSH240 + DSH381 1025 40.35 527*/576** 20.75*/22.68** 803 31.61

8556115
DSH675 DSH295 + DSH381 1025 40.35 527*/576** 20.75*/22.68** 803 31.61 8556115
DSH725 DSH240 + DSH485 1025 40.35 546/563** 21.50*/22.17** 803 31.61 8556134
DSH760 DSH381 + DSH381 1025 40.35 527*/576** 20.75*/22.68** 803 31.61 8556117
DSH780 DSH295 + DSH485 1025 40.35 546*/563** 21.50*/22.17** 803 31.61
640
min 25.20 min
8556141
DSH865 DSH381 + DSH485 1025 40.35 553*/570** 21.77*/22.44** 803 31.61 8556136
DSH970 DSH485 + DSH485 1025 40.35 553*/570** 21.77*/22.44** 803 31.61 8556137
* compressor motor codes 4, 7, 9
** compressor motor code 3
Tandems to be achieved by assembly of individual compressors
Tandem assemblies
13FRCC.PC.045.A7.02

GENERAL INFORMATIONSYSTEM DESIGNINTEGRATION INTO SYSTEMORDERING INFORMATION PRODUCT INFORMATION
Trio assemblies
H
L
H1 L1
H
H1
L
L1




Trio model Composition L D H L1 H1 Outline drawing number
mm inch mm inch mm inch mm inch mm inch
DSH420 3 x DSH140
1131 44.53 513 20.2 569 22.4 515 min 20.28 min
230 9.06
8556195
1118 44.02 513 20.2 569 22.4 511 m in 20.12 min 8556187
DSH483 3 x DSH161
1131 44.53 513 20.2 569 22.4 515 min 20.28 min 8556195
1118 44.02 513 20.2 569 22.4 511 m in 20.12 min 8556187
DSH552 3 x DSH184
1139 44.84 518 20.39 584 22.99 515 min 20.28 min 8556194
1139 44.84 518 20.39 584 22.99 511 min 20.12 min 8556193
DSH720 3 x DSH240 1467 57.76 543 21.38 731 28.78
535 min 21.06 min 211 8.31

8556118
DSH885 3 x DSH295 1467 57.76 543 21.38 731 28.78 8556118
DSH1140 3 x DSH381 1467 57.76 545*
594** 21.46* 23.39** 803 31.61

8556120
DSH1245 2xDSH381 + DSH485 1520 59.84 573*
594** 22.56* 23.39** 803 31.61 8556172
DSH1350 DSH381 + 2Xdsh485 1520 59.84 573*
590** 22.56* 23.23** 803 31.61
680 min 26.77 min 244 9.61
8556173
DSH1455 3 x DSH485 1520 59.84 573*
590** 22.56* 23.23** 803 31.61 8556138
* compressor motor codes 4, 7, 9
** compressor motor code 3
Trio to be acheived by assembly of individual compressors
H
H1
D
L1
L
H
H1
L1
L
D
Dimensions
14 FRCC.PC.045.A7.02

GENERAL INFORMATIONSYSTEM DESIGNINTEGRATION INTO SYSTEMORDERING INFORMATION PRODUCT INFORMATION
Electrical data, connections and wiring
Danfoss scroll compressors DSH are available in four different motor voltages as listed below.
Electrical power is connected to the compressor
terminals by Ø 4.8mm (3/16") screws. The
maximum tightening torque is 3Nm. Use a 1/4"
ring terminal on the power leads.
Cable gland or similar protection
component must be used on electrical box's
knockouts to against accidental contact with
electrical parts inside.
Motor voltage
Wiring connections
DSH090-105-120-140-161
*except DSH140-161 code3
DSH140-161 code3 &
DSH184
The terminal box is provided with a Ø 25.5mm
(φ1 inch) (ISO25) and a Ø 29mm (φ1.14) (PG21)
knockouts.
The terminal box is provided with a Ø 40.5mm
(φ1.59inch) hole (ISO40) for power supply and a
Ø 16.5mm (φ0.65inch) knockout (ISO16).
Motor voltage code Code 3 Code 4 Code 7 Code 9
50Hz
Nominal voltage -380-415V-3ph
380-400V-3ph* - -
Voltage range*** -342-457V
342-440V* - -
60Hz
Nominal voltage 200-230V-3ph 460V-3ph 575V-3ph 380-400V-3ph
380V-3ph **
Voltage range*** 180-253V 414-506V 517-632V 342-440V
342-418V **
* DSH240-4 and DSH381-4
** DSH240-9 to DSH485-9
*** The voltage range indicates where the compressor can run in the majority of the application envelope. A boundary voltage
supply which accumulates under specific conditions such as high ambiance, high superheat, or map boundary conditions, may lead
to a compressor trip.
Vavg = Mean voltage of phases 1, 2, 3.
V1-2 = Voltage between phases 1 and 2.
V1-3 = Voltage between phases 1 and 3.
V2-3 = Voltage between phases 2 and 3.
| Vavg - V1-2 | + | Vavg - V1-3 | + | Vavg - V2-3 |
2 x Vavg
% voltage
imbalance = x 100
The maximum allowable voltage imbalance is
2%. Voltage imbalance causes high amperage
over one or several phases, which in turn leads to
overheating and possible motor damage. Voltage
imbalance is given by the formula:
Terminal box
Ø 25.5mm (φ1inch) knockout
Power supply
Ø 29mm (φ1.14inch)
knockout
Ø 40.5mm
(φ1.59inch) hole
Ø 16.5mm
(φ0.65inch)
knockout Power supply
15FRCC.PC.045.A7.02

GENERAL INFORMATIONSYSTEM DESIGNINTEGRATION INTO SYSTEMORDERING INFORMATION PRODUCT INFORMATION
Electrical data, connections and wiring
DSH240-295-381*-485*
*except code 3
DSH381 code 3
The terminal box is provided with 2 triple
knockouts and 1 single knockout for power
supply and 4 double knockouts for the safety
control circuit.
The 3 power supply knockouts accommodate the
following diameters:
• Ø 50.8mm (φ 2inch) (UL 1"1/2 conduit) &
Ø 43.7mm (φ 1.72inch) (UL 1"1/4 conduit) &
Ø 34.5mm (φ 1.36 inch) (UL 1" conduit)
• Ø 40.5mm (φ 1.59inch) (ISO40) &
Ø 32.2mm (φ 1.27inch) (ISO32) &
Ø 25.5 mm (φ 1 inch) (ISO25)
• Ø 25.5 mm (φ 1 inch) (ISO25)
The 4 others knockouts are as follows:
• Ø 22.5mm (φ 0.89inch) (PG16) (UL 1/2") &
Ø 16.5mm (φ 0.65inch) (ISO16) (x2)
• Ø 20.7mm (φ 0.81inch) (ISO20 or PG13.5) (x2)
The terminal box is provided with:
•Ø 50.5mm (φ 1.98inch) (ISO 50 & UL1"1/2
conduit) hole with possible Ø 63.5mm (φ 2.5inch)
(ISO63 and UL 2"conduit) knockout for power
supply
•2 x Ø 22.5mm (φ 0.89inch) (PG16 and UL ½"
conduit) knockouts for safety control circuit.
Power supply
Power supply
Black
Sump heater
Cover holding screws (x3) · Torque 2.2 Nm
Blue Brown
M1, M2
Control circuit
Terminal box
Black Blue Brown
Faston 1/4" tabs
Power supply
Sump heater
Module
power supply
M1-M2
Control circuit
M1-M2 control circuit
Power supply
Power supply
Power supply
The terminal box is provided with 2 triple
knockouts for power supply, 2 double knockouts
and 3 simple knockouts for the safety control
circuit.
The 2 power supply knockouts accommodate the
following diameters:
• Ø 63.5mm (φ 2.5inch) (ISO63 and UL 2"conduit)
& Ø 54.2mm (φ 2.13inch) (PG42)& 43.7mm (UL
1"1/4 conduit)
The 5 other knockouts are as follows:
• Ø 22.5mm (φ 0.89inch) (PG16) (UL 1/2") &
Ø 16.5mm (φ 0.65 inch) (ISO16)
• Ø 25.5mm (φ 1inch) (ISO25) &
20mm (φ 0.79inch) (ISO20 or PG13.5)
• Ø 22.5mm (φ 0.89inch) (PG16) (UL 1/2")
• Ø 25.5mm (φ 1inch) (ISO25) (x2)
DSH485 code 3
The motor protection modules come preinstalled
within the terminal box. Phase sequence
protection connections and thermistor
connections are pre-wired and should not be
removed. The module must be connected to a
power supply of the appropriate voltage. The
module terminals are 6.3mm (0.25inch) size
Faston type.
LNS1 S2 M1 M2
L1 L2 L3
Black Blue Brown
Phase sequence input
Internal control contact
Safety
circuit
Thermistor
connection
Module power
16 FRCC.PC.045.A7.02

GENERAL INFORMATIONSYSTEM DESIGNINTEGRATION INTO SYSTEMORDERING INFORMATION PRODUCT INFORMATION
Electrical data, connections and wiring
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
The temperature inside the terminal box
must not exceed 70°C (158°F). Consequently,
if the compressor is installed in an enclosure,
precautions must be taken to avoid that the
temperature around the compressor and
in the terminal box would rise too much.
A ventilation installation on the enclosure
panels may be necessary. If not, the electronic
protection module may not operate properly.
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).
Three phase electrical
characteristics
Terminal box temperature
Compressor model LRA MCC Max. operating current Winding resistance
A A A Ω
Motor voltage code 3
200-230V / 3ph / 60Hz
DSH090 203 43 38 0.39
DSH105 267 51 45 0.27
DSH120 267 61 48 0.27
DSH140 304 64 56 0.24
DSH161 315 69 64 0.22
DSH184 351 75 71 0.22
DSH240 485 105 103 0.16
DSH295 560 128 112 0.13
DSH381 717 170 155 0.09
DSH485 1010 190 187 0.07
Motor voltage code 4
380-415V / 3ph / 50Hz
460V / 3ph / 60Hz
DSH090 98 22 19 1.47
DSH105 142 25 22 1.05
DSH120 142 29 24 1.05
DSH140 147 30 28 0.92
DSH161 158 35 31 0.83
DSH184 197 38.6 36 0.83
DSH240 215 51 49 0.62
DSH295 260 62 56 0.52
DSH381 320 79 72 0.42
DSH485 413 90 89 0.23
Motor voltage code 7
575V / 3ph / 60Hz
DSH090 84 18 14 2.34
DSH105 103 22 17 1.57
DSH120 103 24 19 1.57
DSH140 122 26 22 1.38
DSH161 136 29 24 1.32
DSH184 135 35 28 1.32
DSH240 175 41 38 0.94
DSH295 210 45 44 0.82
DSH381 235 60 58 0.56
DSH485 327 71 71 0.36
Motor voltage code 9
380-400V / 3ph / 60Hz
DSH090 124 26 23 1.05
DSH105 160 33 26 0.72
DSH120 160 35 29 0.72
DSH140 168 37 33 0.62
DSH161 177 41 37 0.57
DSH184 239 51 41 0.57
DSH240 260 60 58 0.42
DSH295 310 72 69 0.36
DSH381 360 90 88 0.24
DSH485 491 111 106 0.16
17FRCC.PC.045.A7.02

GENERAL INFORMATIONSYSTEM DESIGNINTEGRATION INTO SYSTEMORDERING INFORMATION PRODUCT INFORMATION
The MCC is the current at which the motor
protection trips under maximum load and
low voltage conditions. This MCC value is the
maximum at which the compressor can be
operated in transient conditions and out of
the application envelope. Above this value, the
internal motor protection or external electronic
module will cut-out the compressor to protect
the motor.
Locked Rotor Amp value is the higher average
current as measured on mechanically blocked
compressors tested under nominal voltage. The
LRA value can be used as a rough estimation for
the starting current. However, in most cases, the
real starting current will be lower. A soft starter
can be applied to reduce starting current (see
section “soft start“).
MCC (Maximum Continuous
Current)
LRA (Locked Rotor Amp)
Motor protection
DSH090 to DSH184 Compressor models DSH 090 to 184 are
provided with internal overload motor
protection to prevent against excessive current
and temperature caused by overloading, low
refrigerant flow or phase loss. The cutout current
is the MCC value listed in table “Three phase
electrical characteristics”.
The protector is located in star point of motor
and, should it be activated, will cut out all three
phases. It will be reset automatically.
While not compulsory, an additional thermal
magnetic motor circuit breaker is still advisable
for either alarm or manual reset.
Then it must be set below MCC value (at max
operating current):
• When the motor temperature is too high, then
the internal protector will trip.
• When the current is too high the thermal
magnetic motor circuit breaker will trip before
the internal protection therefore offering
possibility of manual reset.
Electrical data, connections and wiring
Winding resistance is the resistance between
phases at 25°C (77°F) (resistance value +/- 7%).
Winding resistance is generally low and it
requires adapted tools for precise measurement.
Use a digital ohm-meter, a “4 wires”method and
measure under stabilised ambient temperature.
Winding resistance varies strongly with winding
temperature. If the compressor is stabilised at a
different value than 25°C (77°F), the measured
resistance must be corrected using the following
formula:
a + tamb
Rtamb = R25°C (77°F) _______
a + t25°C (77°F)
t25°C : reference temperature = 25°C (77°F)
tamb: temperature during measurement °C (°F)
R25°C (77°F): winding resistance at 25°C (77°F)
Ramb: winding resistance at tamb
Coefficient a = 234.5
The MOC is the current when the compressors
operate at maximum load conditions and 10%
below nominal voltage (max. evaporating
temperature and max. condensing temperature).
MOC can be used to select cables and contactors.
In normal operation, the compressor current
consumption is always less than the MOC value.
Winding resistance
MOC (Maximum Operating
Current)
Compressor models DSH240-295-381-485 are
delivered with a pre-installed motor protection
module inside the terminal box. This device
provides efficient and reliable protection against
overheating and overloading as well as phase
loss/reversal.
The motor protector comprises a control module
and PTC sensors embedded in the motor
winding.
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.
After this delay has elapsed, the relay is once
again pulled in – i.e. contacts M1-M2 are closed.
The time delay may be cancelled by means
DSH240 to DSH485
18 FRCC.PC.045.A7.02

GENERAL INFORMATIONSYSTEM DESIGNINTEGRATION INTO SYSTEMORDERING INFORMATION PRODUCT INFORMATION
Phase sequence and reverse
rotation protection
Compressor models DSH 090 to 184 incorporates
an internal reverse vent valve which will react
when the compressor is run in reverse and
will allow refrigerant to circulate through a
by-pass from the suction to the discharge.
Although reverse rotation is not destructive for
these models, it should be corrected as soon
as possible. Repeated reverse rotation over 24
hours may have negative impact on the bearings.
Reverse rotation will be obvious to the user as
soon as power is turned on: the compressor will
not build up pressure, the sound level will be
abnormally high and power consumption will be
minimal. If reverse rotation symptoms occur, shut
the compressor down and connect the phases
to their proper terminals. If reverse rotation is
not halted, the compressor will cycle off-on the
motor protection.
PTC overheat
Delay timer active (after PTC over temp.)
Appr. 1 second
40ms 40ms460ms 460ms
Appr. 1 second
920ms80ms
DSH240 to DSH485
Electrical data, connections and wiring
DSH090 to DSH184
Use a phase meter to establish the phase
orders and connect line phases L1, L2 and L3 to
terminals T1, T2 and T3, respectively.
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 DSH 240 to 485 are delivered
with an electronic module which provides
protection against phase reversal and phase loss
at start-up.
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).
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 (except on DSH485-3):
The lockout may be cancelled by resetting the
power mains (disconnect L-N) for approximately
5 seconds.
For more detailed information see“ Instructions
for electronic module” FRCC.PI.031.
Compressor
start
Phase monitoring
0 1 s 6 s
Phase sequence module logic
In case of phase reverse error:
In case of phase loss error:
Appro. 760 ms
120 ms120 ms120 ms 400ms
Appr. 1second
500ms 500ms
of resetting the mains (L-N -disconnect) for
approximately 5 sec.
A red/green twin LED is visible on the module
(except on DSH485-3). A solid green LED denotes
a fault free condition. A blinking red LED indicates
an identifiable fault condition:
While not compulsory, an additional thermal
magnetic motor circuit breaker is still advisable
for either alarm or manual reset.
Then it must be set below MCC value (at max
operating current):
• When the motor temperature is too high,
then the internal PTC over temp. and module is
activated.
• When the current is too high the thermal
magnetic motor circuit breaker will trip before
the module activate therefore offering possibility
of manual reset.
19FRCC.PC.045.A7.02

GENERAL INFORMATIONSYSTEM DESIGNINTEGRATION INTO SYSTEMORDERING INFORMATION PRODUCT INFORMATION
Approval and certificates
DSH scroll compressors comply with the
following approvals and certificates.
Certificates are listed on:
www.commercialcompressors.danfoss.com/
documentation/certificates/
Pressure equipment
directive
Machines directive
2006/42/EC
Low voltage directive
Approval and certificates
Internal free volume
2014/68/EU
2014/35/EU
CE 0062 or CE 0038 or CE0871
(European Directive) All DSH models
UL
(Underwriters Laboratories) All DSH models
Other approvals / certificates Contact Danfoss
Products DSH models
Manufacturer’s declaration of incorporation Contact Danfoss
Products DSH models
Declaration of conformity Contact Danfoss
Products
Internal free volume without oil
Low pressure side High pressure side Total
litre cu.inch litre cu.inch litre cu.inch
DSH090 11.7 714 0.7 43 12.4 757
DSH105 13.6 830 0.7 43 14.3 873
DSH120 13.6 830 0.7 43 14.3 873
DSH140 13.6 830 0.7 43 14.3 873
DSH161 13.6 830 0.7 43 14.3 873
DSH184 13.9 848 0.7 43 14.6 891
DSH240 28.5 1739 2.5 153 31.0 1892
DSH295 28.5 1739 2.5 153 31.0 1892
DSH381 30.3 1849 4.0 244 34.3 2093
DSH485 28.2 1721 3.8 232 32.0 1953
Products DSH090 to 184 DSH240-295-485 DSH381
Refrigerant fluids Group 2 Group 2 Group 2
Category PED II II III
Evaluation module D1 D1 H
Maximum / Minimum temperature - Ts -35°C < Ts < 55°C
-31°F < Ts < 131°F -35°C < Ts < 52°C -31°F < Ts < 125.6°F -35°C < Ts < 52°C -31°F < Ts < 125.6°F
Maximum allowable pressure (Low side) - Ps 33.3bar(g)
483psig 31.1bar(g) 451psig 31.1bar(g) 451psig
Declaration of conformity Contact Danfoss
20 FRCC.PC.045.A7.02