Danfoss DSH090 User guide

www.danfoss.com
Application Guide
Scroll compressors
DSH090 to DSH600
R410A - R454B - R452B, 50Hz -60Hz

Contents
Safety and warnings 5
Introduction 6
Product description 6
Cut Away DSH090-184 6
Cut Away DSH240-600 7
How do IDVs work? 7
Product identication 8
Name Plate 8
Nomenclature 8
Compressors serial number 9
Certicates, declarations and approvals 10
Certicates, declarations, and approvals 10
Low voltage directive 2014/35/EU 10
Machines directive 2006/42/EC 10
Pressure equipment directive 2014/68/EU 10
Internal free volume 10
Refrigerants 11
General Information 11
R410A 11
R452B 11
R454B 11
Technical specication 12
50-60 Hz data Single compressor 12
Performance data 13
R410A 50-60 Hz, Single compressor 13
R452B 50-60 Hz, Single compressor 14
R454B 50-60 Hz, Single compressor 15
Sound and vibration data 16
Compressor sound radiation - Single 16
Mechanical vibrations 17
Operating envelope data 18
Scroll compressors, DSH090 to DSH600 | Contents
© Danfoss | Climate Solutions | 2022.10 AB288965961751en-001402 | 2

Operating envelope 18
Dimensions 21
Single compressors 21
Tandem assemblies 22
Trio assemblies 24
Mechanical connections 26
Connection Details 26
Design compressor mounting 26
Design piping 31
Electrical connections 37
Wiring connections 37
Electrical Specications 39
Application 45
Manage oil in the circuit 45
Manage sound and vibration 45
Manage Operating envelope 46
Manage superheat 48
Manage o cycle migration 51
Power supply and electrical protection 54
Control logic 56
Reduce moisture in the system 58
Assembly line procedure 59
Commissioning 62
Dismantle and disposal 63
Packaging 64
Single pack 64
Industrial pack 64
Ordering 65
Single pack 65
Industrial pack 66
Accessories and Spare parts 68
Solder sleeve adapter set 68
Rotolock adapter 68
Gaskets 68
Scroll compressors, DSH090 to DSH600 | Contents
© Danfoss | Climate Solutions | 2022.10 AB288965961751en-001402 | 3

Solder sleeve 68
Rotolock nut 69
Motor protection modules 69
Crankcase heaters 69
Discharge temperature protection 70
Mounting hardware 70
Lubricant 70
Terminal boxes, covers and T-block connectors 70
Acoustic hoods 71
Miscellaneous 71
Tandem kits 71
Trio kits 72
Updates 73
Online support 74
Scroll compressors, DSH090 to DSH600 | Contents
© Danfoss | Climate Solutions | 2022.10 AB288965961751en-001402 | 4

Safety and warnings
Danfoss 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.
© Danfoss | Climate Solutions | 2022.10 AB288965961751en-001402 | 5
Scroll compressors, DSH090 to DSH600 | Safety and warnings

1
2
4
5
6
3
CC-000005
1
2
3
4
5
6
Intermediate discharge valves (IDVs) increase
seasonal eciency
Heat shield lowers the heat transfer between
discharge and suction gas and the sound level
Internal Non Return Valve (INRV) prevents
excessive leak rate from high pressure side
Lead free polymer bearings improve behavior
under poor lubrication conditions
Patented motor cap for optimal motor cooling and
higher resistance to liquid slugging
Organ pipe masters oil circulation in manifold
conguration.
Introduction
Product description
Danfoss scroll compressor DSH for R410A, R454B and R452B is available as single compressor and can be assembled
in tandem or trio combinations.
DSH series scroll compressor benet from an improved design to achieve the highest eciency and increased life
time.
Cut Away DSH090-184
Figure 1: Cut Away DSH090-184
Scroll compressors, DSH090 to DSH600 | Introduction
© Danfoss | Climate Solutions | 2022.10 AB288965961751en-001402 | 6

1
2
3
4
5
6
7
CC-000006
1
2
3
4
5
6
7
Intermediate discharge valves (IDVs) increase
seasonal eciency
Heat shield lowers the heat transfer between
discharge and suction gas and the sound level
Internal Non Return Valve (INRV) prevents
excessive leak rate from high pressure side
Integrated discharge gas temperature protection
(DGT)
Lead free polymer bearings improve behavior
under poor lubrication conditions
Patented gas path ow with gas intake design
induce higher resistance to liquid slugging
Organ pipe masters oil circulation in manifold
conguration
Cut Away DSH240-600
Figure 2: Cut Away DSH240-600
How do IDVs work?
Figure 3: Intermediate Discharge Valve (IDV)
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 eort of the motor to
the varying load and pressure conditions in the system, thus reducing the eort of the motor and its electrical
consumption and improving the system’s seasonal energy eciency.
© Danfoss | Climate Solutions | 2022.10 AB288965961751en-001402 | 7
Scroll compressors, DSH090 to DSH600 | Introduction

M A D E I N F R A N C E
Model no : DSH485B4APC
Serial no : JC112345678 380-415V 3~50Hz
460V 3~60Hz
LR 389A MAX OPER. 91 A
Thermally protected system
P.E.D.
Marking
PS
TS Max
TS Min
Volume
Lubricant:P.O.E. 160SZ
LP Side HP Side
31,20 bar
52,0 C
-35,0 C
28,5 L
48,70 bar
150 C
-35 C
3,9 L
H
2019
Refrigerant: R410A R452B R454B
876543210
PROTECTED BY DOMESTIC AND FOREIGN PATENTS
0038 089
1
5
6
7
2
3
4
1
2
3
4
5
6
7
Model number
Serial number
Approvals
Refrigerant
Supply voltage, Starting current & Maximum
operating current
Housing service pressure
Factory charged lubricant
Product identication
Name Plate
Figure 4: Name Plate
Nomenclature
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.
Family, lubricant
& refrigerant
DSH: Scroll, POE lubricant,
R410A and R454B/R452B
(according to version) Motor protection
A: Electronic module, 24V AC, R410A only
B: Electronic module, 110-240V, R410A only
P: Electonic module, 110-240V, R410A/R454B/R452B
X: Electonic module,24V AC, R410A/R454B/R452B
L: Internal overload protector, R410A/R454B/R452B
Suction and discharge connections
A: Brazed connections
Family,
lubricant
& refrigerant
Nominal
capacity
Approvals Voltage Version Evolution
index
Evolution index
A~Z
C4DSH B AP485
Motor voltage code
3: 200-230V/3~/60 Hz for DSH090 to DSH184
208-230V/3~/60 Hz for DSH240 to DSH485
4: 380-415V/3~/50Hz - 460V/3~/60Hz
7: 575V/3~/60Hz
9: 380-400V/3~/60Hz
UL index
Nominal capacity
in thousand Btu/h at 60Hz
ARI conditions
Scroll compressors, DSH090 to DSH600 | Product identication
© Danfoss | Climate Solutions | 2022.10 AB288965961751en-001402 | 8

Compressors serial number
Year code 8 Digit serial number
12345678A 25B
Plant assembly line code
Month code
Table 1: Serial number code legend table
Year code
Month code
Plant assembly line code
Year
Code
Month
Code
Plant
Code
1990, 2010
A
January
A
Trévoux, France
11
1991, 2011
B
February
B
1992, 2012
C
March
C
1993, 2013
D
April
D
Wuqing ,China
25
1994, 2014
E
May
E
1995, 2015
F
June
F
1996, 2016
G
July
G
1997, 2017
H
August
H
1998, 2018
J
September
J
1999, 2019
K
October
K
2000, 2020
L
November
L
2001, 2021
M
December
M
2002, 2022
N
2003, 2023
P
2004, 2024
Q
2005, 2025
R
2006, 2026
S
2007, 2027
T
2008, 2028
U
2009, 2029
V
© Danfoss | Climate Solutions | 2022.10 AB288965961751en-001402 | 9
Scroll compressors, DSH090 to DSH600 | Product identication

Certicates, declarations and approvals
Certicates, declarations, and approvals
DSH scroll compressors comply with the following approvals and certicates. Certicate are listed on:
Documentation for Commercial Compressor | Danfoss
Table 2: Certicates, declarations, and approvals
Certicates, declarations, and approvals
Certication logo
Models
CE 0062, CE 0038 or CE 0094 (European Directive)
All DSH models
UL (Underwriters Laboratories)
All DSH models
Other approvals / certicates
Contact Danfoss
Low voltage directive 2014/35/EU
Table 3: Low voltage directive 2014/35/EU
Products
DSH models
Declaration of conformity
Contact Danfoss
Machines directive 2006/42/EC
Table 4: Machines directive 2006/42/EC
Products
DSH models
Manufacturer’s declaration of incorporation
Contact Danfoss
Pressure equipment directive 2014/68/EU
Table 5: Pressure equipment directive 2014/68/EU
Products
DSH090 to 184
DSH240-295
DSH381-485-600
Category PED R410A
II
II
III
Category PED R452B / R454B
III
III
IV
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
R410A : 33.3 bar (g) / R452B and R454B : 31.2 bar(g)
R410A : 483 psig / R452B and R454B : 453 psig
31.2 bar(g)
451 psig
31.2bar(g)
451psig
Maximum allowable pressure (High side) - Ps
48.7 bar(g)
706 psig
48.7 bar(g)
706 psig
48.7 bar(g)
706 psig
Declaration of conformity
Contact Danfoss
Contact Danfoss
Contact Danfoss
Internal free volume
Table 6: Internal free volume
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
27.5
1678
2.9
177
30.4
1855
DSH295
27.1
1654
2.8
171
29.9
1825
DSH381
31.1
1898
4.0
244
35.1
2142
DSH485
28.5
1739
3.9
238
32.4
1977
DSH600
30.1
1837
4.0
244
34.1
2081
Scroll compressors, DSH090 to DSH600 | Certicates, declarations and approvals
© Danfoss | Climate Solutions | 2022.10 AB288965961751en-001402 | 10

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
• Compressor capacity and eciency
• Compressor manufacturer recommendations & Guidelines
Additional points could inuence the nal choice:
• Environmental considerations
• Standardisation of refrigerants and lubricants
• Refrigerant cost
• Refrigerant availability
R410A
R410A is a HFC blend (R32: 50%; R125: 50%) with a zero Ozone Depletion Potential (ODP=0) and a Global Warming
Potential of 1924/AR5 (2088/AR4). It is a near-azeotropic mixture with a temperature glide less than 0.2 K.
With its high net refrigeration eect coupled to a high density, the R410A has appeared in last decade to be the
preferred refrigerant for use in commercial air conditioners and heat pumps.
R452B
R452B is a HFO/HFC blend (R32: 67%; R125: 7%; R1234yf: 26%) with a zero Ozone Depletion Potential(ODP=0) and a
low Global Warming Potential (GWP: 676/AR5 ; 698/AR4). It is a near-azeotropic mixture with a temperature glide
around 1 K.
R452B has very close capacities versus R410A and due to its very limited discharge temperature dierence it
appears today as the best candidate for a direct drop in of R410A.
R452B is classied A2L with low ammability properties. Please refer to European regulations and directives about
the use of refrigerant of the A2L safety group ( EN378, EN60335). Outside Europe refer to the local regulation.
R454B
R454B is a HFO/HFC blend (R32 :68.9%; R1234yf: 31.1%) with a zero Ozone Depletion Potential (ODP=0) and a low
Global Warming Potential (GWP: 467/AR5; 466/AR4). It is a near-azeotropic mixture with a temperature glide around
1 K.
R454B has very close match to R410A in terms of capacity and discharge temperature dierence, and it oers better
eciencies compared to R410A.
R454B is classied A2L with low ammability properties. Please refer to European regulations and directives about
the use of refrigerant of the A2L safety group (EN378, EN60335). Outside Europe refer to the local regulation
© Danfoss | Climate Solutions | 2022.10 AB288965961751en-001402 | 11
Scroll compressors, DSH090 to DSH600 | Refrigerants

Technical specication
50-60 Hz data Single compressor
Table 7: Technical specication 50-60 Hz data Single compressor
Model
Nominal
tons 60 Hz
Swept volume
Displacement (50 Hz) (1)
Displacement (60 Hz) (2)
Oil charge
Net weight (3)
TR
cm3/rev
cu.in/rev
m3/h
cu.ft/h
m3/h
cu.ft/h
dm3
oz
kg
lbs
DSH090
7.5
88.4
5.39
15.4
544
18.6
657
3
102
58
128
DSH105
9
103.5
6.32
18
636
21.8
770
3.3
112
64
141
DSH120
10
116.9
7.13
20.3
717
24.6
869
3.3
112
64
141
DSH140
12
133
8.12
23.1
816
27.9
985
3.3
112
67
148
DSH161
13
151.7
9.26
26.4
932
31.9
1127
3.3
112
69
152
DSH184
15
170.3
10.39
29.6
1045
35.8
1264
3.6
122
71.5
158
DSH240
20
227.6
13.89
39.6
1398
47.8
1688
6.1
206
114
251
DSH295
25
276.2
16.85
48.1
1699
58
2048
6.1
206
117
258
DSH381
30
345
21.05
60
2119
72.3
2553
6.1
206
162
357
DSH485
40
442.6
27.01
77
2719
92.9
3281
6.1
206
176
388
DSH600
50
553
33.75
96.2
3397
116.1
4100
6.1
206
215
474
(1) Displacement at nominal speed: 2900rpm at 50 Hz
(2) Displacement at nominal speed: 3500rpm at 60 Hz
(3) Net weight with oil charge
(1) Displacement at nominal speed: 2900rpm at 50 Hz
(2) Displacement at nominal speed: 3500rpm at 60 Hz
(3) Net weight with oil charge
Scroll compressors, DSH090 to DSH600 | Technical specication
© Danfoss | Climate Solutions | 2022.10 AB288965961751en-001402 | 12

Performance data
R410A 50-60 Hz, Single compressor
Table 8: 50-60 Hz Performance data
Model
Nominal tons
60 Hz
Nominal cooling capacity
Power input
COP
E.E.R.
TR
W
Btu/h
kW
W/W
Btu/h/W
50Hz
DSH090
7.5
20048
68402
6.57
3.05
10.40
DSH105
9.0
23578
80449
7.69
3.07
10.47
DSH120
10.0
26787
91396
8.65
3.10
10.57
DSH140
12.0
30370
103621
9.74
3.12
10.64
DSH161
13.0
34894
119059
11.09
3.15
10.74
DSH184
15.0
39036
133191
12.42
3.14
10.72
DSH240
20.0
52730
179920
17.04
3.09
10.56
DSH295
25.0
64520
220149
20.35
3.17
10.82
DSH381
30.0
80707
275379
25.83
3.12
10.66
DSH485
40.0
104687
357202
32.39
3.23
11.03
DSH600
50.0
128864
439698
40.60
3.17
10.83
60Hz
DSH090
7.5
27471
93730
8.60
3.19
10.90
DSH105
9.0
32279
110136
10.06
3.21
10.94
DSH120
10.0
36629
124977
11.31
3.24
11.05
DSH140
12.0
41510
141631
12.81
3.24
11.06
DSH161
13.0
47222
161122
14.77
3.20
10.91
DSH184
15.0
53157
181371
16.44
3.23
11.03
DSH240
20.0
71760
244852
22.46
3.20
10.90
DSH295
25.0
87610
298934
26.96
3.25
11.09
DSH381
30.0
110116
375726
34.41
3.20
10.92
DSH485
40.0
143956
491192
43.03
3.35
11.42
DSH600
50.0
175344
598291
53.80
3.26
11.12
NOTE:
TR: Ton of Refrigeration,
COP: Coecient Of Performance
EER: Energy Eciency Ratio
Standard rating conditions For 50 Hz: Evaporating temperature: 5°C (41°F), Condensing temperature: 50°C (122°F),
Superheat: 10K (18°F), Subcooling: 0K (0°F)
For 60 Hz: Evaporating temperature: 7.2°C (45°F), Condensing temperature: 54.4°C (130°F), Superheat: 11.1K (20°F),
Subcooling: 8.3K (15°F)
Subject to modication without prior notication.
Data given for motor code 4 compressor with above conditions
For regular updates and detailed capacities, please refer to Coolselector®2.
© Danfoss | Climate Solutions | 2022.10 AB288965961751en-001402 | 13
Scroll compressors, DSH090 to DSH600 | Performance data

R452B 50-60 Hz, Single compressor
Table 9: 50-60 Hz Performance data
Model
Nominal cooling capacity
Power input
COP
E.E.R.
W
Btu/h
kW
W/W
Btu/h/W
50Hz
DSH090
19590
66839
6.46
3.03
10.35
DSH105
23451
80016
7.40
3.17
10.81
DSH120
26366
89961
8.24
3.20
10.92
DSH140
30180
102974
9.35
3.23
11.01
DSH161
34855
118924
10.58
3.30
11.25
DSH184
38779
132313
11.83
3.28
11.18
DSH240
52130
177873
16.1
3.23
11.02
DSH295
63995
218359
19.4
3.30
11.27
DSH381
78977
269477
24.8
3.19
10.89
DSH485
102623
350160
30.69
3.34
11.41
DSH600
126069
430161
38.14
3.31
11.28
60Hz
DSH090
26652
90936
8.38
3.18
10.85
DSH105
31925
108929
9.64
3.31
11.30
DSH120
35779
122078
10.89
3.29
11.21
DSH140
40984
139838
12.51
3.28
11.18
DSH161
46938
160152
13.84
3.39
11.57
DSH184
52181
178040
15.81
3.30
11.26
DSH240
70756
241427
21.4
3.31
11.30
DSH295
86418
294866
25.5
3.39
11.57
DSH381
105020
358339
32.5
3.23
11.02
DSH485
138878
473866
40.92
3.39
11.58
DSH600
169160
577191
50.72
3.34
11.38
NOTE:
TR: Ton of Refrigeration,
COP: Coecient Of Performance
EER: Energy Eciency Ratio
Standard rating conditions For 50 Hz: Evaporating temperature: 5°C (41°F), Condensing temperature: 50°C (122°F),
Superheat: 10K (18°F), Subcooling: 0K (0°F)
For 60 Hz: Evaporating temperature: 7.2°C (45°F), Condensing temperature: 54.4°C (130°F), Superheat: 11.1K (20°F),
Subcooling: 8.3K (15°F)
Subject to modication without prior notication.
Data given for motor code 4 compressor with above conditions
For regular updates and detailed capacities, please refer to Coolselector®2.
Scroll compressors, DSH090 to DSH600 | Performance data
© Danfoss | Climate Solutions | 2022.10 AB288965961751en-001402 | 14

R454B 50-60 Hz, Single compressor
Table 10: 50-60 Hz Performance data
Model
Nominal cooling capacity
Power input
COP
E.E.R.
W
Btu/h
kW
W/W
Btu/h/W
50Hz
DSH090
19346
66010
6.37
3.03
10.36
DSH105
22940
78270
7.26
3.16
10.78
DSH120
26220
89463
8.16
3.21
10.97
DSH140
29879
101946
9.28
3.22
10.98
DSH161
34151
116525
10.45
3.27
11.15
DSH184
37926
129403
11.70
3.24
11.06
DSH240
50691
172964
15.92
3.18
10.87
DSH295
62304
212589
19.07
3.27
11.15
DSH381
78379
267438
24.41
3.21
10.96
DSH485
101653
346851
30.39
3.34
11.41
DSH600
125313
427581
37.87
3.31
11.29
60Hz
DSH090
26320
89804
8.18
3.22
10.98
DSH105
31296
106782
9.49
3.30
11.25
DSH120
35528
121223
10.66
3.33
11.37
DSH140
40482
138126
12.19
3.32
11.33
DSH161
45966
156834
13.79
3.33
11.38
DSH184
51267
174922
15.36
3.34
11.39
DSH240
68133
232478
20.81
3.27
11.17
DSH295
83489
284872
24.94
3.35
11.42
DSH381
105020
358339
32.50
3.23
11.02
DSH485
137206
468160
40.43
3.39
11.58
DSH600
167995
573216
50.26
3.34
11.41
NOTE:
TR: Ton of Refrigeration,
COP: Coecient Of Performance
EER: Energy Eciency Ratio
Standard rating conditions For 50 Hz: Evaporating temperature: 5°C (41°F), Condensing temperature: 50°C (122°F),
Superheat: 10K (18°F), Subcooling: 0K (0°F)
For 60 Hz: Evaporating temperature: 7.2°C (45°F), Condensing temperature: 54.4°C (130°F), Superheat: 11.1K (20°F),
Subcooling: 8.3K (15°F)
Subject to modication without prior notication.
Data given for motor code 4 compressor with above conditions
For regular updates and detailed capacities, please refer to Coolselector®2.
© Danfoss | Climate Solutions | 2022.10 AB288965961751en-001402 | 15
Scroll compressors, DSH090 to DSH600 | Performance 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)
• Gas pulsation (through refrigerant)
The following sections focus on the causes and methods of mitigation for each of the above sources.
Compressor sound radiation - Single
For sound radiating from the compressors, the emission path is air and the sound waves are travelling directly from
the machine in all directions.
Table 11: Compressor sound radiation (R410A Max. DGT 135°C)
Compressor model
50 Hz
60 Hz
Acoustic hood
code number
Sound power dB(A)
Attenuation dB(A) (1)
Sound power dB(A)
Attenuation dB(A) (1)
DSH090
73
6
76
6
120Z0034
DSH105
75
6
78
6
102Z0035
DSH120
75
6
78
6
120Z0035
DSH140
76
6
79
6
120Z0035
DSH161
76
6
79
6
120Z0035
DSH184
78
6
81
6
120Z0135
DSH240
82
6
85
4
120Z0022
DSH295
82
6
85
4
120Z0022
DSH381
89
6
91
4
120Z0022
120Z0579 (2)
DSH485 (3)
89
4
91
4
120Z0022
(1) Attenuation given with acoustic hood
(2) For DSH381code 3
(3) No acoustic hood available for DSH485 code 3
(1) Attenuation given with acoustic hood
(2) For DSH381code 3
(3) No acoustic hood available for DSH485 code 3
Table 12: Compressor sound radiation(R452B/R454B Max. DGT 150°C)
Compressor model
50 Hz
60 Hz
Acoustic hood code number
Sound power dB(A)
Attenuation dB(A) (1)
Sound power dB(A)
Attenuation dB(A) (1)
Body
Top
DSH090
73
4
76
4
120Z0490
120Z0493
DSH105
75
4
78
5
120Z0491
120Z0493
DSH120
75
4
78
5
120Z0491
120Z0493
DSH140
76
4
79
5
120Z0491
120Z0493
DSH161
76
4
79
5
120Z0491
120Z0493
DSH184
78
5
81
6
120Z0492
120Z0493
DSH240
82
5
85
4
120Z0768
-
DSH295
82
5
85
4
120Z0768
-
DSH381 (2)
89
4
91
4
120Z0768
-
DSH485 (2)
89
4
91
4
120Z0768
-
DSH600
91
4
93
4
120Z0851
-
(1) Attenuation given with acoustic hood
(2) No acoustic hood available for DSH381code 3 and DSH485 code3
(1) Attenuation given with acoustic hood
(2) No acoustic hood available for DSH381code 3 and DSH485 code3
NOTE:
Sound power and attenuation are given at ARI conditions, measured in free space
For compressors running simultaneously,
- The global sound level of “n” identical compressors is:
LGLOBAL=Li+10  Log10  n
Example for the trio
Scroll compressors, DSH090 to DSH600 | Sound and vibration data
© Danfoss | Climate Solutions | 2022.10 AB288965961751en-001402 | 16

DSH720=3  ×  DSH240(50  Hz)
LDSH240 =82dB(A)
LDSH720=82+10  Log10  3=86 . 8dB(A)
- The global sound level of “n” dierent compressors with respectively Li sound level is:
LGLOBAL = 10
i = 1
i = nlog10(∑ 100.1 ∗Li)
Example for the tandem
DSH424=DSH184+DSH240(50  Hz)
LDSH184=78dB(A),LDSH240=82dB(A)
LDSH424  =10Log10(100 . 1×78+100 . 1×82)=  83 . 5dB(A)
Mechanical vibrations
A compressor generates some vibrations that propagate into the surrounding parts and structure. The vibration
level of a DSH compressor alone does not exceed 120µm peak to peak for DSH090 to DSH184, and 154µm peak to
peak for DSH240 to DSH600. However, when system structure natural frequencies are close to running frequency,
vibrations are amplied due to resonance phenomenon.
A high vibration level is damageable for piping reliability and generates high sound levels.
© Danfoss | Climate Solutions | 2022.10 AB288965961751en-001402 | 17
Scroll compressors, DSH090 to DSH600 | Sound and vibration data

Operating envelope data
The Operating envelope for DSH scroll compressors guarantees reliable operations of the compressor for steady-
state operation.
Steady-state operation envelope is valid for a suction superheat within 5K to 30K range at nominal Voltage.
Operating envelope
Figure 5: R410A - DSH090 to DSH184
Condensing temperature (°C)
Evaporating temperature (°C)
Evaporating temperature (°F)
Condensing temperature (°F)
5
10
15
20
25
30
35
40
45
50
55
60
65
70
-40 -35 -30 -25 -20 -15 -10 -5 0 5 10 15 20 25 30
-40 -31 -22 -13 -4 5 14 23 32 41 50 59 68 77 86
41
50
59
68
77
86
95
104
113
122
131
140
149
158
S.H. = 5 K (9°F)
S.H. = 30 K (54°F)
CC-000040
Figure 6: R410A - DSH240 to DSH600
Condensing temperature (°C)
Evaporating temperature (°C)
Evaporating temperature (°F)
Condensing temperature (°F)
5
10
15
20
25
30
35
40
45
50
55
60
65
70
-40 -35 -30 -25 -20 -15 -10 -5 0 5 10 15 20 25 30
-40 -31 -22 -13 -4 5 14 23 32 41 50 59 68 77 86
41
50
59
68
77
86
95
104
113
122
131
140
149
158
S.H. = 5 K (9°F)
S.H. = 30 K (54°F)
CC-000042
Scroll compressors, DSH090 to DSH600 | Operating envelope data
© Danfoss | Climate Solutions | 2022.10 AB288965961751en-001402 | 18

Figure 7: R452B / R454B - DSH090 to DSH105 (Max. DGT 150°C)
Condensing temperature (°C)
Evaporating temperature (°C)
Evaporating temperature (°F)
Condensing temperature (°F)
5
10
15
20
25
30
35
40
45
50
55
60
65
70
-40 -35 -30 -25 -20 -15 -10 -5 0 5 10 15 20 25 30
-40 -31 -22 -13 -4 5 14 23 32 41 50 59 68 77 86
41
50
59
68
77
86
95
104
113
122
131
140
149
158
S.H. = 30 K (54°F)
S.H. = 5 K (9°F)
CC-000039
Figure 8: R452B / R454B - DSH120 to DSH184 (Max. DGT 150°C)
Condensing temperature (°C)
Evaporating temperature (°C)
Evaporating temperature (°F)
Condensing temperature (°F)
5
10
15
20
25
30
35
40
45
50
55
60
65
70
-40 -35 -30 -25 -20 -15 -10 -5 0 5 10 15 20 25 30
-40 -31 -22 -13 -4 5 14 23 32 41 50 59 68 77 86
41
50
59
68
77
86
95
104
113
122
131
140
149
158
S.H. = 5 K (9°F)
S.H. = 30 K (54°F)
CC-000038
© Danfoss | Climate Solutions | 2022.10 AB288965961751en-001402 | 19
Scroll compressors, DSH090 to DSH600 | Operating envelope data

Figure 9: R452B / R454B - DSH240 to DSH600 ( Max. DGT 150°C)
Condensing temperature (°C)
Evaporating temperature (°C)
Evaporating temperature (°F)
Condensing temperature (°F)
5
10
15
20
25
30
35
40
45
50
55
60
65
70
-40 -35 -30 -25 -20 -15 -10 -5 0 5 10 15 20 25 30
-40 -31 -22 -13 -4 5 14 23 32 41 50 59 68 77 86
41
50
59
68
77
86
95
104
113
122
131
140
149
158
S.H. = 30 K (54°F)
S.H. = 5 K (9°F)
CC-000041
NOTE:
The application envelope of a cross-platform manifold results in the conjunction of map limitations of compressors
composing the tandem.
Pressure settings
Table 13: Pressure settings
Pressure settings
R410A
R452B / R454B
Working range high side
bar(g)
9.9-44.7
9-41.7
psig
144-648
131-605
Working range low side
bar(g)
1.7-15.5
1.7-14.4
psig
25-225
25-209
Maximum high pressure safety switch setting
bar(g)
46.1
43.1
psig
669
625
Minimum low pressure safety switch setting
bar(g)
1.5
1.5
psig
22
22
Minimum low pressure pump-down switch setting
bar(g)
1.5 bar below nominal evap. pressure with minimum of 1.7 bar(g)
psig
22 psi below nominal evap. pressure with minimum of 25 psig
High and low pressure protection
Low-pressure (LP) and high-pressure (HP) safety switches must never be bypassed nor delayed and must stop all
the compressors.
LP switch auto restart must be limited to 5 times within 12 hours.
HP safety switch must be reset manually.
Depending on application operating envelope, you must dene HP and LP limits within operating envelope and
pressure setting table above.
Scroll compressors, DSH090 to DSH600 | Operating envelope data
© Danfoss | Climate Solutions | 2022.10 AB288965961751en-001402 | 20