Danfoss DSF090, DSF530 Application guide

Application Guide

Scroll compressors DSF090 to DSF530

Single and manifold, 50-60 Hz - R32

www.danfoss.com

Scroll compressors, DSF090 to DSF530 | Contents

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.

1 2

4

5

6

3

CC-000005

12345

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.

Scroll compressors, DSF090 to DSF530 | Introduction

Introduction

Product description

DSF series scroll compressor benet from an improved design to achieve the highest eciency and increased life time.

Cut Away DSF090-200

Figure 1: Cut Away DSF090-200

1

2

3

4

5

6

7

8

1234567

8

Intermediate discharge valves (IDVs) increase

seasonal eciency

Heat shield lowers the heat transfer between

discharge and suction gas and the sound level

Integrated discharge gas temperature protection

(DGT)

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

Patented gas path ow with gas intake design

induce higher resistance to liquid slugging

Organ pipe masters oil circulation in manifold

conguration.

Scroll compressors, DSF090 to DSF530 | Introduction

Cut away DSF 270-530

Figure 2: Cut Away DSF 270-530

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.

M A D E I N F R A N C E

Model no : DSF485A4ABA

Serial no : ZQ1109974321

400 V 3~50 Hz

Thermally protected system P.E.D. Marking

LP side HP side

PS 31,2 bar 48,7 bar TS max 51,0 °C 150,0 °C TS min -35,0 °C -35,0 °C Volume 27,5 L 3,9 L Lubricant: 185 SL

M

2021

Refrige rant: R32

12347 9901 1

PROTEC TED BY DOM ESTIC AND FOREIGN PATENTS

0094

1

5

6

7

2

3

4

LR 343 A MAX OPER.92 A

123

4567Model number

Serial number

Approvals

Refrigerant

Supply voltage, Starting current & Maximum

operating current

Housing service pressure

Factory charged lubricant

Family, lubricant & refrigerant DSF: Scroll, POE lubricant,

R32

Motor protection

A: Electronic module, 24 V AC, B: Electronic module, 110 – 240 V, 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

A4DSF A AB530

Motor voltage code

4: 400V/3/50Hz - 460V/3/60Hz

Motor index

Nominal capacity

in thousand Btu/h at 60 Hz ARI conditions

Scroll compressors, DSF090 to DSF530 | Product identication

Product identication

Name Plate

Figure 4: Name Plate

Nomenclature

Danfoss scroll compressor DSF for R32 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.

Year code 8 Digit serial number

12345678A 25B

Plant assembly line code

Month code

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

Scroll compressors, DSF090 to DSF530 | Product identication

Compressors serial number

Table 1: Serial number code legend table

Approval and certicates

Certication logo

Models

CE0062 or CE0094 (European Directive)

All DSF models

UL (Underwriters Laboratories)

All DSF models Other approvals / certicates

Contact Danfoss

Products

DSF models

Declaration of conformity

Contact Danfoss

Products

DSF models

Manufacturer’s declaration of incorporation

Contact Danfoss

Products

DSF090-200

DSF270-325

DSF485-530

Refrigerant

uids

Group 1

Category PED

III

IV

Maximum / Minimum temperature (Low side) - Ts

-35°C < Ts < 53°C

-31°F < Ts < 127°F

-35°C < Ts < 51°C

-31°F < Ts < 125.6°F

Maximum allowable pressure (Low side) - Ps

32.7bar(g) / 474psig

31.2 bar(g) / 452 psig

Maximum allowable pressure (High side) - Ps

48.7 bar(g) / 706 psig

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

DSF090-100

11.7

714

0.74312.4

757

DSF115-175

13.6

830

0.74314.3

873

DSF200

13.9

848

0.74314.6

891

DSF270

27.5

1678

2.9

177

30.4

1855

DSF325

27.1

1654

2.8

171

29.9

1825

DSF485

28.5

1739

3.9

238

32.4

1977

DSF530

28.5

1739

3.9

238

32.4

1977

Scroll compressors, DSF090 to DSF530 | Certicates, declarations, and approvals

Certicates, declarations, and approvals

DSF scroll compressors comply with the following approvals and certicates. Certicates are listed on: Documentation for Commercial Compressor | Danfoss

Table 2: Approval and certicates

Low voltage directive 2014/35/EU

Table 3: Low voltage directive 2014/35/EU

Machines directive 2006/42/EC

Table 4: Machines directive 2006/42/EC

Pressure equipment directive 2014/68/EU

Table 5: Pressure equipment directive 2014/68/EU

Internal free volume

Table 6: Internal free volume

Scroll compressors, DSF090 to DSF530 | Refrigerants

Refrigerants

General information

When choosing a refrigerant, dierent aspects must be taken into consideration:

• Legislation (now and in the future)

• Safety

• Application envelope in relation to expected running conditions

• 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

R32

R32 is a pure HFC refrigerant with a zero Ozone Depletion Potential (ODP=0) and a low Global Warming Potential (GWP: 677/AR5; 675/AR4).

R32 leads to higher discharge temperatures than R410A but it oers higher cooling capacities and better eciencies compared to R410A.

R32 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

Model

Swept volume

Displacement (50 Hz)

(1)

Displacement (60 Hz)

(2)

Oil charge

Net weight

(3)

cm3/rev

cu.in/rev

m3/h

cu.ft/h

m3/h

cu.ft/h

dm

3

ozkglbs

DSF090

81.3

4.96

14.2

500

17.1

603

3.0

10258128

DSF100

88.4

5.39

15.4

544

18.6

657

3.0

10258128

DSF115

103.5

6.3218636

21.8

770

3.3

11364141

DSF130

116.9

7.13

20.3

717

24.6

869

3.3

11364141

DSF155

133

8.12

23.1

816

27.9

985

3.3

11367148

DSF175

151.7

9.26

26.4

932

31.9

1127

3.3

11369152

DSF200

170.3

10.39

29.6

1045

35.8

1264

3.6

123

71.5

158

DSF270

227.6

13.89

39.6

1398--

6.1

206

114

251

DSF325

276.2

16.85

48.1

1699--

6.1

206

117

258

DSF485

407.2

24.85

70.9

2502--

6.1

206

176

388

DSF530

442.6

27.01772719--

6.1

206

176

388

Scroll compressors, DSF090 to DSF530 | Technical specication

Technical specication

50-60 Hz data, Single compressor

Table 7: 50-60 Hz data, Single compressor

(1)

Displacement at nominal speed: 2900 rpm at 50 Hz

(2)

Displacement at nominal speed : 3500 rpm at 60 Hz

(3)

Net weight with oil charge

Model

Nominal tons

60Hz

Nominal cooling capacity

Power input

COP

E.E.R.

TRWBtu/hkWW/W

Btu/h/W

50 Hz

DSF090

7.5

19958

68096

6.69

2.99

10.19

DSF100

8.5

21940

74860

7.13

3.08

10.50

DSF115

10

26349

89904

8.31

3.17

10.82

DSF130

11

29421

100384

9.19

3.20

10.93

DSF155

13

33772

115232

10.51

3.21

10.97

DSF175

15

39172

133655

12.07

3.24

11.07

DSF200

16.5

43329

147838

13.53

3.20

10.92

DSF270

-

60037

204853

17.98

3.34

11.40

DSF325

-

72501

247380

21.50

3.37

11.51

DSF485

-

107102

365443

31.67

3.38

11.54

DSF530

-

116998

399209

34.27

3.41

11.65

60 Hz

DSF090

7.5

26938

91911

8.68

3.10

10.59

DSF100

8.5

29362

100182

9.38

3.13

10.67

DSF115

10

34923

119157

10.79

3.24

11.04

DSF130

11

39465

134653

12.24

3.22

11.00

DSF155

13

45215

154273

13.82

3.27

11.16

DSF175

15

51618

176121

15.70

3.29

11.22

DSF200

16.5

57717

196932

17.63

3.27

11.17

Scroll compressors, DSF090 to DSF530 | Performance data

Performance data

R32 50-60 Hz, Single compressor

Table 8: 50-60 Hz R32, Single compressor

 NOTE:

TR: Ton of Refrigeration, COP: Coecient Of Performance EER: Energy Eciency Ratio

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)

Standard rating conditions 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)

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.

Tandem and trio performances

The impact of manifolding on compressor performances depends widely of the customer system itself. Therefore, it would be unrealistic to provide data that corresponds accurately to a particular system. In rst approach, to support compressors selection at full load, the manifold performances can be considered as the sum of capacities of the compressors composing the manifold. For better accuracy, the customer should integrate the appropriate weighing coecients according to his system very pressure drops and part load levels.

Compressor model

50 Hz

60 Hz

Acoustic hood code no.

Sound power, dB(A)

Attenuation, dB(A)

Sound power, dB(A)

DSF09074-77--DSF10076-79--DSF115-17578-81--DSF20080-83--DSF270834--

120Z0768

DSF325834--

DSF485894--

DSF530894--

Scroll compressors, DSF090 to DSF530 | Sound and vibration data

Sound and vibration data

Typical sounds and vibrations in systems can be broken down into the following three categories:

• Sound radiation (through air)

• Mechanical vibrations (through parts and structure)

• Gas pulsation (through refrigerant)

The following sections focus on the causes and methods of mitigation for each of the above sources.

Compressor sound radiation

For sound radiating from the compressors, the emission path is air and the sound waves are travelling directly from the machine in all directions.

Sound levels as follows:

• For compressors running alone:

Table 9: Compressor sound radiation

 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:

L

=Li+10  Log10 n

GLOBAL

Example for the trio

DSF810T = 3 × DSF270

L

 =83dB(A)

DSF270

L

=83+10  Log10 3=87 . 8dB(A)

DSF810T

The global sound level of “n” dierent compressors with respectively Li sound level is:

L

GLOBAL

i = n

 = 10

i = 1

log10(∑ 10

0.1

∗ Li)

Example for the tandem

DSF1180T=DSF325+DSF325+DSF530

L

DSF325

L

DSF1180T

=83dB(A),L

 =10Log10(10

DSF530

=89dB(A)

0 . 1×83

+10

0 . 1×83

+10

0 . 1×89

)=  90 . 8dB(A)

Scroll compressors, DSF090 to DSF530 | Sound and vibration data

Mechanical vibrations

A compressor generates some vibrations that propagate into the surrounding parts and structure. The vibration level of a DSF compressor alone does not exceed 120 µm peak to peak for DSF090 to DSF200, and 154um peak to peak for DSF270 to DSF530.. 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.

Condensing temperature (°C)

Condensing temperature (°F)

Evaporating temperature (°C)

Evaporating temperature (°F)

5

10

15

20

25

30

35

40

45

50

55

60

65

70

41

0

32

50

59

68

77

86

95

104

113

122

131

140

149

158

-30-35 -25 -20 -15 -10 -5 0 5 10 15 20 25 30

-22-31 -13 -4 5 14 23 32 41 50 59 68 77 86

S.H. = 5 K (9°F)

CC-000182

S.H. = 10 K (18°F)

Condensing temperature (°C)

Condensing temperature (°F)

Evaporating temperature (°C)

Evaporating temperature (°F)

5

10

15

20

25

30

35

40

45

50

55

60

65

70

41

0

32

50

59

68

77

86

95

104

113

122

131

140

149

158

-30-35 -25 -20 -15 -10 -5 0 5 10 15 20 25 30

-22-31 -13 -4 5 14 23 32 41 50 59 68 77 86

S.H. = 5 K (9°F)

CC-000183

S.H. = 10 K (18°F)

Scroll compressors, DSF090 to DSF530 | Operating envelope data

Operating envelope data

The Operating envelope data for DSF 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 10K range at nominal Voltage.

Operating envelope

Figure 5: Operating envelope R32 DSF090 to DSF130

Figure 6: Operating envelope R32 DSF155 to DSF200

Condensing temperature (°C)

Condensing temperature (°F)

Evaporating temperature (°C)

Evaporating temperature (°F)

5

10

15

20

25

30

35

40

45

50

55

60

65

70

41

0

32

50

59

68

77

86

95

104

113

122

131

140

149

158

-30-35 -25 -20 -15 -10 -5 0 5 10 15 20 25 30

-22-31 -13 -4 5 14 23 32 41 50 59 68 77 86

S.H. = 5 K (9°F)

CC-000543

S.H. = 10 K (18°F)

Pressure settings

R32

Working range high side

bar(g)

10 – 43

psig

145 – 624

Working range low side

bar(g)

1.7 – 15.9

psig

25 – 231

Maximum high pressure safety switch setting

bar(g)

44.4

psig

645

Minimum low pressure safety switch setting

bar(g)

1.5

psig

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

Scroll compressors, DSF090 to DSF530 | Operating envelope data

Figure 7: Operating envelope R32 DSF270 to DSF530

Pressure settings

Table 10: Pressure settings

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.

Ø D

H1

Ø19.05mm (0.75 inch)

L3

L2

190.5mm (7.5 inch)

190.5mm

(7.5 inch)

L1

30°

H2

H

30°

CC-000055

Ø D

H

H2

H1

L1

L3

L2

8556208

H

H2

H1

Ø D

L2

L3

L1

8556199

Compressor

model

DHH1H2L1L2L3

Outline drawing no.

mm

inchmminchmminchmminchmminchmminchmminch

DSF090-100

243

9.57

485

19.09

235

9.25

451

17.76

180

7.09

230

9.06

230

9.0618560176

DSF115-175

243

9.57

542

21.34

278

10.94

509

20.04

180

7.09

230

9.06

230

9.06

8560177

DSF200

243

9.57

558

21.97

299

11.77

524

20.63

201

7.91

230

9.06

230

9.06

8560178

DSF270

320

12.6

653

25.71

302

11.87

618

24.33

427

16.81

371

14.61

371

14.61

2

8556208

DSF325

320

12.6

653

25.71

302

11.87

618

24.33

427

16.81

371

14.61

371

14.61

DSF485

333

13.11

726

28.58

302

11.87

667

26.26

429

16.89

371

14.61

371

14.61

3

8556198

DSF530

333

13.11

726

28.58

302

11.87

667

26.26

429

16.89

371

14.61

371

14.61

Scroll compressors, DSF090 to DSF530 | Dimensions

Dimensions

Single compressors

Figure 8: Outline drawing number 1

Figure 9: Outline drawing number 2

Figure 10: Outline drawing number 3

Table 11: Single compressor

H

L

8556230

D

L1

H1

H

L

L1

H1

D

8556228

D

H

L

L1

H1

8556222

L1

H1

H

L

D

8556223

H1

CC-000056

L1

L

H

D

Tandem mod‐

el

Composition Cp1

+ Cp2

LDHL1H1

Outline drawing

number

mm

inchmminchmminchmminchmminch

DSF180E

DSF090+DSF090

850

33.46

384

15.12

507

19.96

240

9.45

242

9.5318560144

DSF200E

DSF100+DSF100

850

33.46

384

15.12

507

19.96

240

9.45

242

9.5318560144

DSF230E

DSF115+DSF115

850

33.46

384

15.12

565

22.24

240

9.45

242

9.5318560145

DSF260E

DSF130+DSF130

850

33.46

384

15.12

565

22.24

240

9.45

242

9.5318560145

DSF215U

DSF100+DSF115

850

33.46

386

15.20

565

22.24

240

9.45

242

9.5318560189

DSF230U

DSF100+DSF130

850

33.46

386

15.20

565

22.24

240

9.45

242

9.5318560189

DSF255U

DSF100+DSF155

850

33.46

386

15.20

565

22.24

240

9.45

242

9.5318560189

DSF275U

DSF100+DSF175

850

33.46

386

15.20

565

22.24

240

9.45

242

9.5318560189

DSF285U

DSF130+DSF155

850

33.46

386

15.20

565

22.24

240

9.45

242

9.5318560168

DSF300U

DSF100+DSF200

850

33.46

428

16.85

580

22.83

240

9.45

242

9.5318560190

DSF305U

DSF130+DSF175

850

33.46

386

15.20

565

22.24

240

9.45

242

9.5318560168

DSF310E

DSF155+DSF155

850

33.46

384

15.12

565

22.24

240

9.45

242

9.5318560145

DSF315U

DSF115+DSF200

850

33.46

428

16.85

580

22.83

240

9.45

242

9.5318560167

DSF330U

DSF155+DSF175

850

33.46

386

15.20

565

22.24

240

9.45

242

9.5318560168

DSF331U

DSF130+DSF200

850

33.46

428

16.85

580

22.83

240

9.45

242

9.5318560167

DSF350E

DSF175+DSF175

850

33.46

384

15.12

565

22.24

240

9.45

242

9.5318560145

DSF355U

DSF155+DSF200

850

33.46

428

16.85

580

22.83

240

9.45

242

9.5318560167

DSF375U

DSF175+DSF200

850

33.46

428

16.85

580

22.83

240

9.45

242

9.5318560167

DSF400E

DSF200+DSF200

850

33.46

428

16.85

580

22.83

240

9.45

242

9.5318560146

DSF400X

DSF130+DSF270

903

35.55

533

20.98

731

28.78

359

14.13

211

8.3158560169

DSF470X

DSF200+DSF270

903

35.55

533

20.98

731

28.78

359

14.13

211

8.3158560170

Scroll compressors, DSF090 to DSF530 | Dimensions

Tandem assemblies

Figure 11: Outline drawing number 1

Figure 14: Outline drawing number 4

Figure 12: Outline drawing number 2

Figure 15: Outline drawing number 5

Figure 13: Outline drawing number 3

Table 12: Tandem assemblies

CC-000057

H

D

H1

L1

L

CC-000058

H

D

H1

L1

L

H1

L1

H

L

8556217

L

H1

L1

H

8556216

Tandem mod‐

el

Composition Cp1

+ Cp2

LDHL1H1

Outline drawing

number

mm

inchmminchmminchmminchmminch

DSF500X

DSF175+DSF325

903

35.55

533

20.98

731

28.78

359

14.13

211

8.3158560169

DSF525X

DSF200+DSF325

903

35.55

533

20.98

731

28.78

359

14.13

211

8.3158560170

DSF540E

DSF270+DSF270

1025

40.35

527

20.75

701

27.6

535

21.06

211

8.3128556228

DSF595U

DSF270+DSF325

1025

40.35

527

20.75

701

27.6

535

21.06

211

8.3128556228

DSF650E

DSF325+DSF325

1025

40.35

527

20.75

701

27.6

535

21.06

211

8.3128556228

DSF800U

DSF270+DSF530

1025

40.35

546

21.5

774

30.5

535

21.06

211

8.3138556207

DSF970E

DSF485+DSF485

1025

40.35

553

21.77

774

30.5

640

25.2

211

8.3148556205

DSF855U

DSF325+DSF530

1025

40.35

546

21.5

774

30.5

640

25.2

211

8.3148556220

DSF1060E

DSF530+DSF530

1025

40.35

553

21.77

774

30.5

640

25.2

211

8.3148556205

Scroll compressors, DSF090 to DSF530 | Dimensions

NOTE:



Tandems to be achieved by assembly of individual compressors. By convention, the last letter of tandems designation have been set to help to discern easily which type of manifold we are considering.

U : Uneven tandem E : Even tandem X: Crossplatfom (medium-large) tandem

Trio assemblies

Figure 16: Outline drawing number 6

Figure 18: Outline drawing number 8

Figure 17: Outline drawing number 7

Figure 19: Outline drawing number 9

Tandem model

Composition

LDHL1H1

Outline drawing

number

mm

inchmminchmminchmminchmminch

DSF465T

3 x DSF155

1230

48.4

402

15.8

571

22.5

205

8.1

242

9.568560172

1326

52.2

402

15.8

571

22.5

622

24.5

242

9.578560172

DSF525T

3 x DSF175

1230

48.4

402

15.8

571

22.5

205

8.1

242

9.568560172

1326

52.2

402

15.8

571

22.5

622

24.5

242

9.578560172

DSF 600T

3 x DSF200

1236

48.7

433

17.0

587

23.1

205

8.1

242

9.568560171

1326

52.2

433

17.0

587

23.1

622

24.5

242

9.578560171

DSF810T

DSF270+DSF270+DSF270

1467

57.76

543

21.38

701

27.6

535 min

21.06

211

8.3188556217

DSF975T

DSF325+DSF325+DSF325

1467

57.76

543

21.38

701

27.6

536 min

21.06

211

8.3188556217

DSF1180T

DSF325+DSF325+DSF530

1467

57.76

573

22.56

774

30.5

535 min

21.06

211

8.3188556310

DSF1385T

DSF530+DSF530+DSF325

1520

59.84

573

22.56

774

30.5

640 min

25.19

244

9.6198556314

DSF1590T

DSF530+DSF530+DSF530

1520

59.84

573

22.56

774

30.5

640 min

25.19

244

9.6198556216

Scroll compressors, DSF090 to DSF530 | Dimensions

Table 13: Trio assemblies

NOTE:



Trio to be achieved by assembly of individual compressors.

CC-000167

CC-000168

Connection Details

DSF090-100

DSF115-200

DSF270-325

DSF485-530

Suction connection

Brazed 1"1/8

Brazed 1"3/8

Brazed 1"5/8

Discharge connection

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 drawing

112

2

Scroll compressors, DSF090 to DSF530 | Mechanical connections

Mechanical connections

Connection details

Table 14: Connection details

Figure 20: Outline drawing 1

Figure 21: Outline drawing 2

Design compressor mounting

General requirements

Compressors used in single applications must be mounted with exible grommets.

Compressors used in parallel applications must be mounted with rigid spacers onto rails (or directly on rails according to compressor models) and the manifold assembly must be mounted with exible grommets onto the frame.

During operation, the maximum inclination from the vertical plane must not exceed 3 degrees.

Single requirements DSF090-200 mounting

Compressors DSF090-200 are delivered with rubber grommets and steel mounting sleeve used to isolated the compressor from the base frame.

15 mm

(0.59 Inch)

1

2 3

4

5

6

7

cc-0048

1234567

Tightening torque 15 Nm

HM 8 bolt (4 pcs)

Lock washer (4 pcs)

Flat washer (4 pcs)

Steel mounting sleeve (4 pcs)

Rubber grommet (4 pcs)

Nut (4 pcs)

1

CC-0000001

27.5 mm

(1.08 inch)

CC-0049

2

8

3 4

5

6

7

1234567

8

Rubber grommets from kit 8156138

HM 8 bolt

Lock washer

Flat washer

Steel mounting sleeve

Rubber grommet

Nut

Compressor base plate

Scroll compressors, DSF090 to DSF530 | Mechanical connections

The grommets must be compressed until contact between the at washer and the steel mounting sleeve is established. The required bolt size for the DSF090-200 compressors is HM8-40. This bolt must be tightened to a torque of 15Nm.

Figure 22: Rubber grommets

Part 2, 3, 4, 5, 6 and 7 are delivered along with compressor

Single requirements, DSF270-325-485-530 mounting

To be used in single applications, an additional accessory including exible grommets is necessary kit 8156138.

The grommets must be compressed until contact between the at washer and the steel mounting sleeve is established. The required bolt size for the DSF compressors is HM8-55. This bolt must be tightened to a torque of 21 Nm.

Figure 23: Rubber grommets from kit 8156138

Figure 24: Rubber grommets

Manifolding requirements DSF 180E-400E and DSF285U-305U-330U mounting

The compressors must be mounted with rigid mounting spacers on rails. Rubber grommets and spacers must be installed below the rails.

The rigid mounting spacers are included in tandem accessory kits. The rubber grommets are supplied with compressor.

For more details about parallel mounting feet, please see parallel unit outline drawing.

2

3

4

1

CC-000002

1234Tightening torque 15Nm

Not supplied Φ8x75mm 0.31x2.95inch

Tightening torque 15Nm

4mm (0.16 inch) thickness

Supplied with the compressor

Included in manifolding kit

Not supplied

1

2

3

4

5

CC-000003

4

3

2

1

CC-000004

12345

Tightening torque 15Nm

Not supplied HM8mm 0.31 inch

Tightening torque 15 Nm

4mm (0.16 inch) Thickness

Additional rigid spacer (Refer to table below)

Supplied with the compressor

Included in manifolding kit

Not supplied

Scroll compressors, DSF090 to DSF530 | Mechanical connections

Figure 25: DSF 180E-400E and DSF285U-305U-330U mounting

Manifolding requirements DSF 215U-230U-255U-275U-300U-315U-331U-355U-375U mounting

The compressors must be mounted with rigid mounting spacers on rails. Rubber grommets and spacers must be installed below the rails.

The rigid mounting spacers are included in tandem accessory kits. The rubber grommets are supplied with compressor.

Figure 26: Smaller model of tandem

Figure 27: Larger model of tandem

1

2

3

4

CC-000009

1234Tightening torque 15Nm

Not supplied HM8mm 0.31 inch

Tightening torque 15 Nm

3mm (0.12inch) Thickness

Supplied with the compressor

Included in manifolding kit

Not supplied

1

CC-000010

4

5

2

3

7

6

5

CC-000011

Additionnal rigid spacer

Additional right spacer(to be added on the smallest compressor of the tan‐ dem)

DSF215U-230U-255U-275U-315U-331U-355U-375U

7mm

DSF300U

14mm

Scroll compressors, DSF090 to DSF530 | Mechanical connections

Table 15: Additionnal rigid spacer

Tandem requirements DSF465T-525T-600T mounting

The compressors must be mounted with rigid mounting spacers on rails. Rubber grommets and spacers must be installed below the rails.

The rigid mounting spacers and rubber grommets are included in tandem accessory kits.

Tandem requirements DSF400X-470X-500X-525X mounting

The large compressor, DSF270,325, is mounted with rigid spacers on the rails.

The DSF130, 175,200 compressor is xed on beams by rigid spacer, and the beams are mounted with rigid spacers on the rails. Rubber grommets and spacers must be installed below the rails.

Figure 28: DSF270-325

Figure 29: DSF130-175-200

2

1

3

CC-000012

123

HM 10 x 30 class 10.9, Tightening torque 50 Nm

HM 10 x 100 class 10.9, Tightening torque 50

Nm

Thickness: 5 mm (0.2 inch)

Included in tandem/trio kit

Not supplied

1234567

Tightening torque 16Nm

Not supplied Φ10mm

Tightening torque 50Nm

Tightening torque 55Nm

5mm (0.2inch) thickness

Tightening torque 15Nm

4mm (0.16inch) thickness

Supplied with the compressor

Included in manifolding kit

Not supplied

Scroll compressors, DSF090 to DSF530 | Mechanical connections

Tandem requirements, DSF540E to DSF1590T mounting

For parallel mounting, the compressors can be mounted directly on the rails. Rubber grommets and spacers must be installed below the rails.

These parts are included in accessories.

Figure 30: DSF540E to DSF1590T mounting

Design piping

General requirements

Proper piping practices should be employed to:

1.

Ensure adequate oil return, even under minimum load conditions (refrigerant speed, piping slopes…). For validation tests see section Manage oil in the circuit.

2.

Avoid condensed liquid refrigerant from draining back to the compressor when stopped (discharge piping upper loop). For validation tests see section Manage o cycle migration.

3.

Piping should be designed with adequate three-dimensional exibility to avoid excess vibration. It should not be in contact with the surrounding structure, unless a proper tubing mount has been installed. For more information on noise and vibration, see section Sound and vibration data.

HP

3

2

5

4 m*

6

1

LP

4

CC-0043

123456*

Evaporator

0.5% slope

4m/s or more

8 to 12 m/s

To condenser

U-trap, as short as possible

Max.

CC-000162

HP

LP

3

1

2

123

3D exibility

Upper loop

Condenser

Scroll compressors, DSF090 to DSF530 | Mechanical connections

Figure 31: Proper piping - Evaporator

Figure 32: Proper piping - Condenser

Tandem and Trio requirements (Static)

DSF tandem and trio use static oil balancing principle to equalize oil level between the compressors by gravity. This is ensured by a precise suction and oil equalization piping design.

The discharge line has no impact on oil balancing. It is shown with tee, to indicate that both left and right side discharge headers are possible.

By default, DSF tandems and trios are not factory-built. To complete an assembly in the eld, you will need:

• Tubings, according to specic outline drawings indicated in the following table

• Manifolding accessory kit

• Compressors

CC-000037

Included in tandem or trio accessory kit

Not supplied

Cp3

Cp2

Cp1

CC-000035

1

Cp3

Cp2

Cp1

2

CC-000036

12Cp1

Cp2

Cp3

Trio models with Right suction

Trio models with Left suction

Compressor 1

Compressor 2

Compressor 3

Tandem

model

Composition

Suction

Discharge

Oil equali‐

zation

Outline drawing number

Suction

from

Washer inner diameter

Washer in suction of

Tandem kit

code no

DSF180E

DSF090+DSF090

1"5/8

1"3/8

1"1/8

8560144

Left

Not needed

120Z0634

Right

DSF200E

DSF100+DSF100

1"5/8

1"3/8

1"1/8

8560144

Left

Not needed

120Z0634

Right

DSF215U

DSF100+DSF115

1"5/8

1"3/8

1"1/8

8560189

Left

25 mm (0.98 inch)

Cp2

120Z0694

Right

26 mm (1.02 inch)

Cp2

Scroll compressors, DSF090 to DSF530 | Mechanical connections

Suction and oil equalization piping drawings must be respected (diameters, minimum straight lengths, …).

Suction washer position

Depending on manifold conguration, it is essential to equalize the pressure of compressor sumps. Hence, a suction washer must be added on certain compressors according to the table. Suction washers are included in tandem or trio accessory kits as described in the illustrations.

Figure 33: Suction washer position

By convention, the compressor order (No.1, No.2 ...) is dened counting from left to right, placed on the side facing the electrical boxes of the compressors (see example below on a trio)

Figure 34: Example of right suction

Figure 35: Example of left suction

Tandem models

Table 16: Tandem models

Tandem

model

Composition

Suction

Discharge

Oil equali‐

zation

Outline drawing number

Suction

from

Washer inner diameter

Washer in suction of

Tandem kit

code no

DSF230E

DSF115+DSF115

1"5/8

1"3/8

1"1/8

8560145

Left

Not needed

120Z0634

Right

DSF230U

DSF100+DSF130

1"5/8

1"3/8

1"1/8

8560189

Left

27mm (1.06 inch)

Cp2

120Z0694

Right

27mm (1.06 inch)

Cp2

DSF255U

DSF100+DSF155

1"5/8

1"3/8

1"1/8

8560189

Left

23 mm (0.91 inch)

Cp1

120Z0694

Right

23 mm (0.91 inch)

Cp1

DSF260E

DSF130+DSF130

1"5/8

1"3/8

1"1/8

8560145

Left

Not needed

120Z0634

Right

DSF275U

DSF100+DSF175

1"5/8

1"3/8

1"1/8

8560189

Left

21 mm (0.83 inch)

Cp1

120Z0694

Right

21 mm (0.83 inch)

Cp1

DSF285U

DSF130+DSF155

1"5/8

1"3/8

1"1/8

8560168

Left

27 mm (1.06 inch)

Cp1

120Z0692

Right

27 mm (1.06 inch)

Cp1

DSF300U

DSF100+DSF200

1"5/8

1"3/8

1"1/8

8560190

Left

20 mm (0.79 inch)

Cp1

120Z0693

Right

20 mm (0.79 inch)

Cp1

DSF305U

DSF130+DSF175

1"5/8

1"3/8

1"1/8

8560168

Left

25 mm (0.98 inch)

Cp1

120Z0692

Right

25 mm (0.98 inch)

Cp1

DSF310E

DSF155+DSF155

1"5/8

1"3/8

1"1/8

8560145

Left

Not needed

120Z0634

Right

DSF315U

DSF115+DSF200

1"5/8

1"3/8

1"1/8

8560167

Left

23 mm (0.91 inch)

Cp1

120Z0693

Right

23 mm (0.91 inch)

Cp1

DSF330U

DSF155+DSF175

1"5/8

1"3/8

1"1/8

8560168

Left

27.5 mm (1.08 inch)

Cp1

120Z0692

Right

26 mm (1.02 inch)

Cp1

DSF331U

DSF130+DSF200

1"5/8

1"3/8

1"1/8

8560167

Left

24 mm (0.94 inch)

Cp1

120Z0694

Right

24 mm (0.94 inch)

Cp1

DSF350E

DSF175+DSF175

1"5/8

1"3/8

1"1/8

8560145

Left

Not needed

120Z0634

Right

DSF355U

DSF155+DSF200

1"5/8

1"3/8

1"1/8

8560167

Left

25 mm (0.98 inch)

Cp1

120Z0694

Right

25 mm (0.98 inch)

Cp1

DSF375U

DSF175+DSF200

1"5/8

1"3/8

1"1/8

8560167

Left

27.5 mm (1.08 inch)

Cp1

120Z0694

Right

27.5 mm (1.08 inch)

Cp1

DSF400E

DSF200+DSF200

1"5/8

1"3/8

1"1/8

8560146

Left

Not needed

120Z0634

Right

DSF400X

DSF130+DSF270

2"1/8

1"3/8

8560169

Left

24 mm (0.94 inch)

Cp1

120Z0709

Right

25 mm (0.98 inch)

Cp1

DSF470X

DSF200+DSF270

2"1/8

1"3/8

8560170

Left

35.5 mm (1.4 inch)

CP2

120Z0709

Right

35.5 mm (1.4 inch)

CP2

DSF500X

DSF175+DSF325

2"1/8

1"3/8

8560169

Left

25 mm (0.98 inch)

Cp1

120Z0709

Right

26 mm (1.02 inch)

Cp1

DSF525X

DSF200+DSF325

2"1/8

1"3/8

8560170

Left

26 mm (1.02 inch)

Cp1

120Z0709

Right

26 mm (1.02 inch)

Cp1

DSF540E

DSF270+DSF270

2"1/8

1" 5/8

1" 3/8

8556228

Left

Not needed

120Z0792

Right

DSF595U

DSF270+DSF325

2"1/8

1" 5/8

1" 3/8

8556228

Left

31 mm (1.22 inch)

Cp1

120Z0796

Right

DSF650E

DSF325+DSF325

2"1/8

1" 5/8

1" 3/8

8556228

Left

Not needed

120Z0792

Right

DSF800U

DSF270+DSF530

2"1/8

1" 5/8

8556207

Left

24 mm (0.94 inch)

Cp1

120Z0786

Right

DSF970E

DSF485+DSF485

2"5/8

1" 5/8

8556205

Left

Not needed

120Z0785

Right

DSF855U

DSF325+DSF530

2"5/8

1" 5/8

8556220

Left

27 mm (1.06 inch)

Cp1

120Z0787

Right

DSF1060E

DSF530+DSF530

2"5/8

1" 5/8

8556205

Left

Not needed

120Z0785

Right

Scroll compressors, DSF090 to DSF530 | Mechanical connections

1 2

CC-000034

12Organ pipe

Tightening torque 100Nm

Supplied with the compressor

Included in tandem kit

Trio model

Composition

Suction

Discharge

Oil equali‐

zation

Outline drawing number

Suction

from

Washer inner diameter

Washer in suction of

Trio kit

code no

DSF465T

3xDSF155

2"1/8

1"3/8

1"1/8

8560172

Left

26 mm (1.02 inch)

CP1

120Z0714

25 mm (0.98 inch)

CP3

Right 26 mm (1.02 inch)

CP1

24 mm (0.94 inch)

CP3

DSF525T

3xDSF175

2"1/8

1"3/8

1"1/8

8560172

Left

26 mm (1.02 inch)

CP1

120Z0714

25 mm (0.98 inch)

CP3

Right 26 mm (1.02 inch)

CP1

25 mm (0.98 inch)

CP3

DSF600T

3xDSF200

2"1/8

1"3/8

1"1/8

8560171

Left

26 mm (1.02 inch)

CP1

120Z0714

25 mm (0.98 inch)

CP3

Right

25.5 mm (1.00 inch)

CP1

25 mm (0.98 inch)

CP3

DSF810T

DSF270+DSF270 +DSF270

2"5/8

1" 5/8

8556217

Left

30 mm (1.18 inch)

Cp3

120Z0784

Right

34.5 mm (1.36 inch)

Cp1 & Cp3

120Z0794

DSF975T

DSF325+DSF325 +DSF325

2"5/8

1" 5/8

8556217

Left

30 mm (1.18 inch)

Cp3

120Z0784

Right

34.5 mm (1.36 inch)

Cp1 & Cp3

120Z0794

DSF1180T

DSF325+DSF325+DSF530

2"5/8

1" 5/8

8556310

Left--

120Z0790

Right

29 mm (1.14)

Cp1 & Cp2

120Z0815

DSF1385T

DSF530+DSF530+DSF325

3"1/8

1" 5/8

8556314

Left

26 mm (1.02)

Cp3

120Z0814

Right

26 mm (1.02)

Cp1

120Z0815

DSF1590T

DSF530+DSF530 +DSF530

3"1/8

2" 1/8

1" 5/8

8556216

Left

33 mm (1.3 inch)

Cp2 & Cp3

120Z0793

Right

Scroll compressors, DSF090 to DSF530 | Mechanical connections

Trio models

Table 17: Trio models

Oil equalization DSF180E-400E

The oil level is balanced by a pipe of 1"1/8 oil equalization line.

In order ensure best oil balance, the organ pipe need to be mounted inside the oil equalization port as indicated on below picture. To connect the equalization line on rotolock connections, the organ pipe adaptor and teon gasket are included in the tandem kit must be used.

The organ pipe needs to be installed in the direction indicated by the label attached on pipe surface, which will

ensure best oil balance.

1 2

CC-000032

3

CC-000033

123

Organ pipe

Tightening torque 100Nm

Tightening torque 145Nm

Supplied with the compressor

Included in tandem kit

Scroll compressors, DSF090 to DSF530 | Mechanical connections

Oil equalization design DSF 400X-470X-500X-525X

The oil level is balanced by a pipe of 1"3/8 oil equalization line.

In order to ensure best oil balance, the organ pipe need to be mounted inside the DSF130, DSF175, DSF200 oil equalization port as indicated on below picture. DSF270, DSF325 has integrated organ pipe inside the oil equalization port.

To connect the equalization line on rotolock connections, the organ pipe, adaptor sleeves, Teon gaskets included in the tandem accessory kit must be used.

Figure 36: For DSF130, DSF175, DSF200

Figure 37: For DSF270, DSF325

Oil equalization design DSF270-530

The oil level is balanced by a pipe of 1"3/8 or 1"5/8. To connect the equalization line on rotolock connections, the adaptor sleeves included in the tandem or trio accessory kit must be used.

3

CC-000033

3

Tightening torque 145 Nm

Supplied with the compressor

Included in tandem kit

Scroll compressors, DSF090 to DSF530 | Mechanical connections

Figure 38: DSF270, DSF530

4

1

2

3

CC-0031

1234Terminal box

Ø 29mm (φ1.14inch) knockout

Ø 25.5mm (φ1inch) knockout

Power supply

3

2

1

CC-0400

123

Ø 16.5mm (φ0.65inch) knockout

Ø 40.5mm (φ1.59inch) hole

Power supply

Scroll compressors, DSF090 to DSF530 | Electrical connections

Electrical connections

Wiring connections

According to compressor model, electrical power is connected to the compressor terminals either by 4.8mm (10-32) screws or by M5 studs and nuts. In both cases the maximum tightening torque is 3 Nm.

Cable gland or similar protection component must be used on electrical box's knockouts to against accidental

contact with electrical parts inside.

DSF090-175

The terminal box is provided with a Ø 25.5mm (φ1 inch) (ISO25) and a Ø 29mm (φ1.14) (PG21) knockouts.

Figure 39: Wiring connections for DSF090-175

DSF200

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).

Figure 40: Wiring connections for DSF200

DSF270-325-485-530

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:

2

3

1

8

6

7

4

3

2

1

5

L1

L N S1 S2 M1M2

L2 L3

CC-0517

12345678Black

Blue

Brown

M1, M2 Control circuit

Module power supply

Sump heater

Faston 1/4" tabs

Power supply

L N S1 S2 M1 M2

L1 L2 L3

2

3 4

5

1

CC-0035

L1L2L312345Black

Blue

Brown

Phase sequence input

Internal control contact

Safety circuit

Thermistor connection

Module power

Motor voltage code

Code 4

50 Hz

Nominal voltage

400 V - 3ph

50 Hz

Voltage range

360-440V

60 Hz

Nominal voltage

460V-3ph

60 Hz

Voltage range

414-506V

Scroll compressors, DSF090 to DSF530 | Electrical connections

• Ø 50.8 mm (φ 2 inch) (UL 1"1/2 conduit) & Ø 43.7 mm (φ 1.72 inch) (UL 1"1/4 conduit) & Ø 34.5 mm (φ 1.36 inch) (UL 1" conduit)

• Ø 40.5 mm (φ 1.59 inch) (ISO40) & Ø 32.2 mm (φ 1.27 inch) (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 22.5 mm (φ 0.89 inch) (PG16) (UL 1/2") & Ø 16.5 mm (φ 0.65 inch) (ISO16) (x2)

• Ø 20.7 mm (φ 0.81 inch) (ISO20 or PG13.5) (x2)

Figure 41: Wiring connections for DSF270-325-485-530

Motor protection module

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 6.3 mm (0.25 inch) size Faston type.

Figure 42: Motor protection module

Electrical specications

Motor voltage

Danfoss scroll compressors DSF are available in motor voltage listed below.

Table 18: Motor voltage

Vavg

V1-2

V1-3

V2-3

Mean voltage of phases 1, 2, 3.

Voltage between phases 1 and 2.

Voltage between phases 1 and 3.

Voltage between phases 2 and 3.

Compressor models

LRA

Max. operating current

Winding resistance

AAΩ

DSF0909817

1.47

DSF1009819

1.47

DSF115

142221.05

DSF130

142241.05

DSF155

147270.92

DSF175

158300.83

DSF200

197340.83

DSF270

191440.62

DSF325

231540.52

DSF485

343830.28

DSF530

343920.28

Scroll compressors, DSF090 to DSF530 | Electrical connections

 NOTE:

Voltage range: Nominal voltage ± 10%. The voltage range indicates where the compressor can run in the majority

of the application envelope. A boundary voltage supply which accumulates under specic conditions such as high ambiance, high superheat, or map boundary conditions, may lead to a compressor trip.

Voltage imbalance

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:

%  voltageimbalance = 

2×Vavg

×100

IP rating

The compressor terminal box according to IEC60529 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

Terminal box temperature

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

Table 19: Motor voltage code 4 - 400V/3ph/50Hz, 460V/3ph/60Hz

t

25°CtambR25°C (77°F)

R

amb

a

reference temperature = 25°C (77°F)

temperature during measurement °C (°F)

winding resistance at 25°C (77°F)

winding resistance at tamb

Coecient a = 234.5

Scroll compressors, DSF090 to DSF530 | Electrical connections

LRA (Locked Rotor Amp)

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

starts).

MOC (Maximum Operating Current)

The max operating current is the amperage the compressor will draw when it operates at maximum load of operating envelope within the voltages printed on the nameplate.

MOC can be used as a basis for contactors selection.

Winding resistance

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 dierent value than 25°C (77°F), the measured resistance must be corrected using the following formula:

R

tamb

 = R

25°C(77°F)



a + t



amb

25°C(77°F)

Motor protection

DSF090 to DSF200

Compressor models DSF090 to 200 are provided with internal overload motor protection to prevent against excessive current and temperature caused by overloading, low refrigerant ow or phase loss.

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 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 oering possibility of manual reset.

DSF270 to DSF530

DSF compressors are delivered with a pre-installed motor protection module inside the terminal box. This device provides ecient 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.

*

460 ms

1s*

40 ms 460 ms40 ms

approx. 1 second

*

1s*

80 ms 920 ms

approx. 1 second

Scroll compressors, DSF090 to DSF530 | Electrical connections

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 of resetting the mains (L-N -disconnect) for approximately 5 sec.

A red/green twin LED is visible on the module. A solid green LED denotes a fault free condition. A blinking red LED indicates an identiable fault condition:

Figure 43: PTC Overheat

Figure 44: Delay timer active (after PTC over temp.)

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 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 oering possibility of manual reset.

Phase sequence and reverse rotation protection

Use a phase meter to establish the phase orders and connect line phases L1, L2 and L3 to terminals T1, T2 and T3, respectively.

DSF090 to DSF200

Compressor models DSF090 to 200 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 o-on the motor protection.

DSF270 to DSF530

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 DSF270 to 530 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).

Cp

Ph

0 1s 6s

St

CpPhSt

Compressor

Phase monitoring

start

*

760 ms*

120 ms 400 ms120 ms 120 ms

Approximate

*

1 s*

500 ms 500 ms

Approximate

Scroll compressors, DSF090 to DSF530 | Electrical connections

Figure 45: Phase sequence module logic

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:

Figure 46: In case of phase reverse error

Figure 47: In case of phase loss error

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” AN160986418236.

1.

2.

3.

1.

2.

3.

1.

2.

Split type

Single compressor

Manifold compressors

Non split

Test No.1

Test No.1+2

Split

Test No.1+3

Test No.1+2+3

Test No.

Purpose

Test conditions

Pass criteria

Solutions

1

Check proper oil return

A

Lowest foreseeable evaporation, and highest foreseeable condensation. Minimum number of compressor running for 6 hours. For reversible system, perform test in both heating and cooling mode.

Oil level must be visible or full in the sight glass when the compressor is running and when all compressors of the circuit are stopped.

Top-up with oil, generally 3% of the total system refrigerant charge (in weight). Above 3% look for potential oil trap in the system. Integrate a function in control logic to run all compressors simultaneously in order to boost oil return (for more details see section Control logic). Oil separator can be added

2

Check oil balancing

A

Lowest foreseeable evaporation and highest foreseeable condensation and nominal capacity condition For tandem 2 compressors running for 6 hours, for trio, compressor running follow the running sequence: (1+2+3)2hrs→ (1+2)2hrs →(2+3)2hrs→(1+3)2hrs For reversible system, perform test in both heating and cooling mode.

Oil level must be visible or full in the sight glass when the compressors are running and when all compressors of the circuit are stopped

Top-up with oil, generally 3% of the total system refrigerant charge (in weight). Check that manifold piping is conform to Danfoss requirements. Integrate a function in control logic to stop manifold periodically in order to balance oil (for more details see section Control

logic).

3

Oil return in split systems

Since each installation is unique, test 1 and 2 can not fully validate the oil return. Oil level must be checked and adjusted at commissioning.

Oil level must be visible or full in the sight glass when the compressor is running and when all compressors of the circuit are stopped.

Pay special attention to “Piping design” Oil separator is strongly recommended, especially in case of part load.

Scroll compressors, DSF090 to DSF530 | Application

Application

Manage oil in the circuit

Requirement

Oil level must be visible or full in the sight glass when the compressor is running and when all compressors of the circuit are stopped. For DSF155-200 trio models, top-up oil quantity 1L at least as mandatory.

System evaluation

Table 20: System evaluation

Test, criteria and solutions

Table 21: Test, criteria and solutions

Manage sound and vibration

Sound radiations

We can consider two means to reduce compressors sound radiations:

1.

Acoustic hoods are quick and easy to install and do not increase the overall size of the compressors. Acoustic hoods are available from Danfoss as accessories. Refer to the tables above for sound levels, attenuation and code numbers.

2.

Use of sound-insulation materials on the inside of unit panels is also an eective mean to reduce sound radiation.

 NOTE:

During compressor shut down, a short reverse rotation sound is generated. The duration of this sound depends on the pressure dierence at shut down and should be less than 3 seconds. This phenomenon has no impact on compressor reliability.

Scroll compressors, DSF090 to DSF530 | Application

Gas pulsation

DSF has been designed and tested to ensure that gas pulsation is optimized for the most commonly encountered air conditioning pressure ratio. Manifolded compressors are equivalents to lagged sources of gas pulsation. Therefore, pulse level can vary during time.

Mitigations methods:

If an unacceptable level is identied, a discharge muer with the appropriate resonant volume and mass can be installed.

Mitigation methods

Mitigations methods:

1.

To ensure minimum vibrations transmission to the structure, strictly follow Danfoss mounting requirements (mounting feet, rails etc..). For further information on mounting requirements, please refer to section Design

compressor mounting.

2.

Ensure that there is no direct contact (without insulation) between vibrating components and structure.

3.

To avoid resonance phenomenon, pipings and frame must have natural frequencies as far as possible from running frequency. Solutions to change natural frequencies are to work on structure stiness and mass (brackets, metal sheet thickness or shape…).

Manage operating envelope

The Operating envelope data for DSF 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 10K range at nominal Voltage.

Discharge temperature protection

DSF270 to DSF530 include an integrated discharge temperature protection. Excessive discharge temperature will result in tripping of electronic module ouput relay.

This protection, eective for suction superheat above 5 – 10 K (9 – 18 °F), should be considered as a compressor safety device and its purpose is not to ensure operation map control.

In case of basic map control by pressure switches that can not ensure totally that the compressor will remain in its operating envelope, an additionnal external discharge protection is required. (see Figure 48: Discharge temperature

protection examples)

3

2

1

4

CC-0056

1234Thermostat

Discharge line

Bracket

Insulation

Condensing temperature (°C)

Condensing temperature (°F)

Evaporating temperature (°C)

Evaporating temperature (°F)

5

10

15

20

25

30

35

40

45

50

55

60

65

70

41

50

59

68

77

86

95

104

113

122

131

140

149

158

-35 -30 -25 -20 -15 -10 -5 0 5 10 15 20 25 30

-31 -22 -13 -4 5 14 23 32 41 50 59 68 77 86

Example 2

LP2

DGT - limit

LP1

R32

Example 1

HP1

HP2

CC-000184

Scroll compressors, DSF090 to DSF530 | Application

Figure 48: Discharge temperature protection examples

Example 1 (R32, SH = 5K) LP switch setting: LP1 = 3.9 bar (g) (-15°C), HP switch setting: HP1 =40.2 bar (g) (62°C) Risk of operation beyond the application envelope. DGT protection required.

Example 2(R32, SH = 5K) LP switch setting: LP2 = 4.8 bar (g) (-10°C), HP switch setting: HP2 = 32 bar (g) (52°C) No risk of operation beyond the application envelope. No DGT protection required.

DSF090 to DSF200 have no integrated discharge temperature protection, an external protection is required.

This external protection device can be a thermostat or a temperature sensor. The discharge gas temperature protection must trip the power supply when it reaches the setting point to protect the compressor from overheating.

The discharge gas protection should be set to open at a maximum discharge gas temperature of 150°C(302°F). A PT1000 is recommended.

The discharge gas thermostat or sensor must be attached to the discharge line within 150mm (5.91 inch) from the compressor discharge port and must be thermally insulated and tightly xed on the pipe (see Figure 49: Discharge

Gas Temperature protection (DGT))

Figure 49: Discharge Gas Temperature protection (DGT)

Basic

Advanced

• HP and LP switch

• MOP (Max Operating Pressure) ensured by expansion device

• Condensing pressure control

• DGT external setting points: max 150°C (302°F)

• HP and LP sensor

• Operating envelope limits integrated into control logic

• Temperature measurement (monitoring by sensor)

HP switch setting

CC-000166

Condensing pressure control

MOP < Max evap T°

LP switch setting

tests No1 and 2

DGT

Whole operating envelope limits integrated into control logic

CC-000192

Application

Tests to perform

Non reversible

Liquid

ood back test

Reversible

Liquid

ood back test

Defrost test

Scroll compressors, DSF090 to DSF530 | Application

System evaluation

HP and LP must be monitored to respect operating envelope limitations. We consider two types of operating envelope management: Basic and Advanced.

Table 22: System evaluation

Manage superheat

During normal operation, refrigerant enters the compressor as a superheated vapor. Liquid ood back occurs when a part of the refrigerant entering the compressor is still in liquid state.

Liquid ood back can cause oil dilution and, in extreme situations lead to liquid slugging that can damage the compressor.

Requirement

In steady state conditions the expansion device must ensure a suction superheat within 5 – 10 K (9 – 18 °F).

System evaluation

Use the table in relation with the application to quickly evaluate the potential tests to perform.

Table 23: System evaluation

1

CC-000023

1

Oil temperature sensor must be placed on the bottom of the baseplate.

1.

2.

1.

2.

Test

Purpose

Test condition

Pass criteria

Solutions

Liquid ood back test

Steady-state

A

Liquid ood back testing must be carried out under expansion valve threshold operating conditions:

• Lowest foreseeable evaporation, and highest foreseeable condensation.

• Minimum number of compressor running.

For reversible system, perform test in both heating and cooling mode.

Suction superheat >5 K (9 °F) and the oil superheat shall not be more than 60 sec below the safe limit dened in the Dilution Chart (see graph below).

Check expansion valve selection and setting.

◦ For Thermostatic ex-

pansion valve (TXV ) check bulb position...

◦ For Electronic expan-

sion valve (EXV) check measurement chain

and PID....

Add a suction accumulator

(1)

Transient

Tests must be carried out with most unfavorable conditions :

• fan staging

• compressor staging

• …

Oil superheat shall not be more than 60 sec per hour below the safe limit dened in the Dilution Chart. (see graph below)

Defrost test

Check liquid oodback during defrost cycle

Defrost test must be carried out in the most unfavorable conditions (at 0 °C (32 °F) evaporating temperature).

Oil superheat shall not be more than 60 sec per hour below the safe limit dened in the Dilution Chart. (see graph below)

Check defrost logic. In reversible systems, the defrost logic can be worked out to limit liquid ood- back eect. (for more details see Control logic). Add a suction accumulator

(1)

Scroll compressors, DSF090 to DSF530 | Application

Test, criteria and solutions

Table 24: Test, criteria and solutions

(1)

Suction accumulator oers protection by trapping the liquid refrigerant upstream from the compressor. The accumulator should be sized at

Suction accumulator oers protection by trapping the liquid refrigerant upstream from the compressor. The accumulator should be sized at least 50 % of the total system charge. Suction accumulator dimensions can impact oil return (gas velocity, oil return hole size…), therefore oil

least 50 % of the total system charge. Suction accumulator dimensions can impact oil return (gas velocity, oil return hole size…), therefore oil return has to be checked according to section Manage oil in the circuit.

return has to be checked according to section Manage oil in the circuit.

Placing oil temperature sensor

Oil temperature sensor must be placed on the bottom of the 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 dened as: (Oil temperature - Evaporating temperature)

Figure 50: Placing oil temperature sensor on the bottom of the baseplate

22.5

25

20

17.5

15

12.5

10

7.5

5

-25-30 -20 -15 -10 -5 0 5 10 15 20 25

-13-22 -4 5 14 23 32 41 50 59 68

77

2.5

0

40.5

45

36

31.5

27

22.5

18

13.5

9

4.5

0

Unsafe Area (60 sec max per hour)

Safe Area

Evaporating Temperature (°C)

Evaporating Temperature (°F)

Oil Superheat (K)

Oil Superheat (°F）

CC-000185

15

12.5

10

7.5

5

-25-30 -20 -15 -10 -5 0 5 10 15 20 25

-13-22 -4 5 14 23 32 41 50 59 68 77

2.5

0

27

22.5

18

13.5

9

4.5

0

CC-000026

Evaporating Temperature (°F)

Safe Area

Unsafe Area (60 sec max per hour)

Evaporating Temperature (°C)

Oil Superheat (K)

Oil Superheat (°F)

Scroll compressors, DSF090 to DSF530 | Application

Dilution Chart - DSF090 to DSF200, R32

Figure 51: Dilution Chart (reference at 20 °C / 68 °F ambient temperature)

Dilution Chart - DSF270 to DSF570, R32

Figure 52: Dilution Chart (reference at 20 °C / 68 °F ambient temperature)

Manage o cycle migration

O -cycle refrigerant migration happens:

Application

BELOW charge limit

ABOVE charge limit

All

Ensure tightness between condenser & evaporator when system is OFF

• Thermostatic expansion Valve (TXV), Liquid Line Solenoid Valve LLSV strongly recommended

• Electronic expansion valve (EXV) must close when system stop including in power shut down situation

Non split

No test or additional safeties required

• Surface Sump Heater

Split

Since each installation is unique, refrigerant charge may vary

• Surface Sump Heater

• Liquid Line Solenoid Valve + pump-down cycle

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 (ft/s)& ambient temperature <-5°C

80W SSH + additional SSH/thermal insulation

Scroll compressors, DSF090 to DSF530 | Application

• when the compressor is located at the coldest part of the installation, refrigerant vapor condenses in the compressor.

• or directly in liquid-phase by gravity or pressure dierence. When the compressor restarts, the refrigerant diluted in the oil, or stored in evaporator, generates poor lubrication conditions, and may reduce bearings life time. In extreme situations, this leads to liquid slugging that can damage the compressor scroll set.

Requirement

• Compressor can tolerate occasional ooded start, but it should remain exceptional situation and unit design must prevent that this situation happen at each start.

• Right after start, liquid refrigerant must not ow massively to compressor

• The charge limit is a threshold beyond some protective measures must be taken to limit risk of liquid slugging and extreme dilution at start.

System evaluation

Use the Table 27: Charge limits for Single models and Table 28: Charge limits for Tandem models in section Charge limits, in relation with the system charge and the application to quickly dene necessary safeties to implement.

Table 25: System evaluation

Surface Sump heater

The surface sump heater are designed to protect the compressor against o-cycle migration of refrigerant.

For DSF090-200, 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 heater could be refered to below principle:

Figure 53: DSF090 to 200

Table 26: surface sump selection principle

For DSF270-530, the 56W surface sump heater is located below the sump, associated with a thermal insulation.

Models

Composition

Refrigerant charge limit

kg

lbs

DSF090-818DSF100-818DSF115-1022DSF130-1022DSF155-1022DSF175-1022DSF200-1022DSF270-1533DSF325-1533DSF485-1737DSF530-17

37

Models

Composition

Refrigerant charge limit

kg

lbs

DSF180E

DSF090+DSF090

1226DSF200E

DSF100+DSF100

1226DSF230E

DSF115+DSF115

1226DSF260E

DSF130+DSF130

1226DSF215U

DSF100+DSF115

1226DSF230U

DSF100+DSF130

1226DSF255U

DSF100+DSF155

12

26

Scroll compressors, DSF090 to DSF530 | Application

Figure 54: DSF 270 to 530

The heater must be turned on whenever all the compressors are o. Surface sump heater accessories are available from Danfoss (see section Accessories and spare parts).

Liquid line solenoid valve (LLSV)

A LLSV is used to isolate the liquid charge on the condenser side, thereby preventing against charge transfer to the compressor during o -cycles. The quantity of refrigerant on the low-pressure side of the system can be further reduced by using a pump-down cycle in association with the LLSV.

Pump-down cycle

By decreasing pressure in the sump, pump down system:

• evacuates refrigerant from oil

• set the sump saturating pressure much lower than ambiance temperature and due to that, avoid refrigerant condensation in the compressor.

Pump-down must be set higher than 1.7 bar(g) (25 psig). For more details on pump-down cycle see Pump-down

logic recommendations in section Control logic.

Charge limits

Table 27: Charge limits for Single models

Table 28: Charge limits for Tandem models

Models

Composition

Refrigerant charge limit

kg

lbs

DSF275U

DSF100+DSF175

1226DSF285U

DSF130+DSF155

1226DSF300U

DSF100+DSF200

1226DSF305U

DSF130+DSF175

1226DSF310E

DSF155+DSF155

1431DSF315U

DSF115+DSF200

1226DSF350E

DSF175+DSF175

1431DSF400E

DSF200+DSF200

1431DSF330U

DSF155+DSF175

1431DSF331U

DSF130+DSF200

1226DSF355U

DSF155+DSF200

1431DSF375U

DSF175+DSF200

1431DSF400X

DSF130+DSF270

1431DSF500X

DSF175+DSF325

1431DSF470X

DSF200+DSF270

1431DSF525X

DSF200+DSF325

1431DSF540E

2xDSF2702146

DSF595U

DSF270 + DSF325

2146DSF650E

2xDSF3252555

DSF800U

DSF270 + DSF530

2146DSF855U

DSF325 + DSF530

2555DSF970E

DSF485 + DSF485

3475DSF1060E

DSF530 + DSF530

34

75

Models

Composition

Refrigerant charge limit

kg

lbs

DSF465T

3 × DSF155

1431DSF525T

3 × DSF175

1431DSF600T

3 × DSF200

1431DSF810T

3 × DSF270

2146DSF975T

3 × DSF325

2555DSF1180T

DSF325+DSF325+DSF530

2555DSF1385T

DSF530+DSF530+DSF325

3475DSF1590T

3 × DSF530

34

75

Scroll compressors, DSF090 to DSF530 | Application

Table 29: Charge limits for Trio models

Power supply and electrical protection

Wiring information

Requirements

• Protect the compressor from short circuit and overcurrent by a thermal magnetic motor circuit breaker set to Max. operating current or lower (see table in section Three phase electrical characteristics). For DSF090-200, phase sequence protection is strongly recommended.

• DSF 270-530 compressors are delivered with a pre-installed motor protection module inside the terminal box that must be powered on.

• HP safety switch and electronic module relay output (M1-M2) must be wired in the safety chain. Other safety devices such as LP can be either hardware or software managed.

• Provide separate electrical supply for the heaters so that they remain energized even when the machine is out of service (e.g. seasonal shutdown).

The wiring diagrams below are examples for a safe and reliable compressor wiring:

M

DGT

HP

UC

SS CC

F1 F1

KM

CB

Ph

L1L1L3 L2

L3

L2

T1

T3

T2

KM

SSH

LPS

Ph

CC-0036

MPM

S

SSH

CCSS

LPS

KM

CB

F1 F1

HP

L1 L3 L2

KM

T2

M

T1

T3

DGT

UC

CC-0041

Scroll compressors, DSF090 to DSF530 | Application

Figure 55: Compressor model DSF090 - 200

Figure 56: Compressor model DSF270 - 325

CB

CC

DGT

F1HPKM

LPSMMPM

S

SS

SSH

CC

SS

LPS

KM

F1 F1

HP

L1 L3 L2

KM

DGT

MPM

CB

UC

M

S

SSH

T2

T1

T3

CC-000020

Thermal magnetic motor circuit breaker

Control circuit

Discharge gas thermistor (embedded in com-

pressor)

Fuses

High pressure safety switch

Compressor contactor

Safety pressure switch

Compressor motor

Motor Protection Module

Thermistor chain (motor and discharge tem-

perature)

Seprate supply

Surface sump heater

Safeties

Tripping conditions

Re-start conditions

Value

Time

Value

Time

HP safety switch

See Pressure settings table from section Operating enve-

lope data

Immediate, no delay. No bypass

Conditions back to normal. Switch closed again.

Manual reset

LP safety switch

Maximum 5 auto reset during a period of 12 hours, then manual reset.

Electronic module (Motor protection, DGT)

Contact M1-M2 opened

Scroll compressors, DSF090 to DSF530 | Application

Figure 57: Compressor model DSF485 - 530

Soft starts

Soft starters are designed to reduce the starting current of 3-phase AC motors. Soft starter must be set so

compressor start-up time is always less than 0.5 seconds to ensure proper lubrication of compressor parts.

Ramp-down must be set to minimum to ensure proper discharge valve closing.

Make sure that the soft starter selected is compatible with R32 refrigerant.

Control logic

Safety control logic requirements

Table 30: Safety control logic requirements

1

Cp 1 ON

Cp 2 ON

H

100%

2 65 8 973

4

CC-000019

4WV

EXV

Scroll compressors, DSF090 to DSF530 | Application

Cycle rate limit requirements

Danfoss requires a minimum compressor running time of 2 minutes to ensure proper oil return and sucient motor cooling.

Additionally, compressor must not exceed 12 starts per hour. 12 starts per hour must not be considered as an average, this is the maximum number of starts acceptable to keep a good regulation accuracy during low load.

Oil management logic recommendations

In some cases, oil management can be enhanced by control logic:

• If oil return test failed, a function can be integrated in control logic to run all compressors simultaneously during 2 minutes every hour in order to boost oil return. Time and delay can be ne-tuned by oil return test No.1 in section

Manage oil in the circuit. During oil boost, pay special attention to superheat management to avoid liquid ood

back.

• In trio system, after running long time in same state with 2 or 3 compressors, (1+2+3) or (1+2), (2+3) or (3+1), oil unbalance may appears. A function can be implemented in control logic to stop all compressors during one minute every two hours in order to balance oil. Time and sequence can be ne-tuned during Oil balancing test in section Manage oil in the circuit.

Defrost logic recommendations / Reversible systems

In reversible systems, the defrost logic can be worked out to limit liquid ood back eect by:

1.

Running full load during defrost to share liquid refrigerant between all compressors.

2.

Reducing refrigerant ooding to compressor by transferring liquid refrigerant from one exchanger to the other before reversing valve thanks pressures.

The following defrost logic combines both advantages:

Figure 58: Defrost logic advantages

Cp 1

Cp 2ONH

12345

6789Compressor 1

Compressor 2

On

Heating

Defrost start. Stop all compressors

4 Way Valve (4WV) stays in heating mode. EXV opened to transfer liquid from outdoor to indoor

exchanger thanks to pressure dierence.

When pressures are almost balanced

(1)

, change 4WV to cooling mode.

Start Cp1 and Cp 2 with 0.5 seconds delay between 2 successive starts

Defrost

Defrost end. Stop all compressors

4 WV stays in cooling mode. EXV opened to transfer liquid from indoor to outdoor exchanger thanks to

pressure dierence

When pressures are almost balanced

(1)

, change 4WV to heating mode.

Start Cp1 and Cp 2 with 0.5 seconds delay between 2 successive starts

Scroll compressors, DSF090 to DSF530 | Application

In reversible systems, to ensure compressor reliability, the 4-way valve must not reverse when the compressor is

stopped due to heating or cooling demand (stop on thermostat).

(1)

EXV Opening degree and time have to be set to keep a minimum pressure for 4 way valve moving. In any case, defrost logics must respect

EXV Opening degree and time have to be set to keep a minimum pressure for 4 way valve moving. In any case, defrost logics must respect requirements and tests described in sections Manage superheat and Operating envelope data.

requirements and tests described in sections Manage superheat and Operating envelope data.

Pump-down logic recommendations

Pump down is initiated prior to shutting down the last compressor on the circuit by de-energizing a liquid line solenoid valve or closing electronic expansion valve. When suction pressure reached the cut-out pressure, compressor is stopped, and liquid solenoid valve or electronic expansion valve remains closed.

Two types of pump-down exist:

• One shot pump down (preferred): when last compressor of the circuit stops, suction presssure is decreased 1.5 bar (22 psi) below nominal evaporating pressure with minimum of 1.7 bar(g) (25 psig). Even if suction pressure increases again, the compressor will not restart.

• Continuous pump-down: traditional pump-down, Compressor restarts automatically when suction pressure increases up to 4 cycles maximum.

Non Return Valve (NRV)

DSF compressors integrate tight internal non return valve (INRV), therefore no external Non Return Valve (NRV) is needed.

Reduce moisture in the system

Excessive air and moisture

• can increase condensing pressure and cause high discharge temperatures.

• can create acid giving rise to copper platting.

• can destroy the lubricating properties of the oil.

All these phenomena can reduce service life and cause mechanical and electrical compressor failure.

Scroll compressors, DSF090 to DSF530 | Application

Requirements

DSF compressors are delivered with < 100 ppm moisture level. At the time of commissioning, system moisture content may be up to 100 ppm. During operation, the lter drier must reduce this to a level between 20 and 50 ppm.

Solutions

To achieve this requirement, a properly sized and type of drier is required. Important selection criteria’s include:

• driers water content capacity

• system refrigeration capacity

• system refrigerant charge

For new installations with DSF compressors with polyolester oil, Danfoss recommends using the Danfoss DML (100% molecular sieve) solid core lter drier.

Assembly line procedure

Compressor storage

Store the compressor not exposed to rain, corrosive or ammable atmosphere between -35 °C (-31 °F) and 70 °C (158 °F) when charged with nitrogen and between -35 °C (-31 °F) and Ts max value (see section Pressure equipment

directive 2014/68/EU) when charged with refrigerant.

Compressor holding charge

Each compressor is shipped with a nominal dry nitrogen holding charge between 0.3 bar (4 psi) and 0.7 bar (10 psi) and is sealed with elastomer plugs.

Respect the following sequence to avoid discharge check valve gets stuck in open position:

• Remove the suction plug rst

• Remove the discharge plug afterwards

An opened compressor must not be exposed to air for more than 20 minutes to avoid moisture is captured by

the POE oil.

Handling

Each Danfoss DSF scroll compressor is equipped with two lift rings on the top shell.

• Always use both these rings when lifting the compressor.

• Use lifting equipment rated and certied for the weight of the compressor or compressor assembly.

• A spreader bar rated for the weight of the compressor is highly recommended to ensure a better load distribution.

• The use of lifting hooks closed with a clasp is recommended.

• For tandem and trio assemblies, use a spreader bar and all compressor rings as shown in picture below.

• Never use the lift rings on the compressor to lift the full unit.

Maintain the compressor in an upright position during all handling manoeuvres (maximum of 15° from vertical).

HEAVY

do not lift

manually

123

3

2

1

cc-0066

Slings

Spreader bars

Frame

Circuit contamination possible cause

Requirement

Brazing and welding oxides

During brazing,

ow nitrogen through the system.

Particles and burrs

Remove any particles and burrs generated by tube cutting and hole drilling.

Moisture and air

Use only clean and dehydrated refrigeration grade copper tubing. Opened compressor must not be exposed to air more than 20 minutes to avoid moisture captured by oil.

Scroll compressors, DSF090 to DSF530 | Application

Figure 59: Heavy

Figure 60: Correct Figure 61: Incorrect

Figure 62: Handling

Piping assembly

Good practices for piping assembly is a pre-requisite to ensure compressor life time (system cleanliness, brazing procedure etc.)

Table 31: System cleanliness

Brazing procedure:

• Brazing operations must be performed by qualied personnel.

• Make sure that no electrical wiring is connected to the compressor.

• To prevent compressor shell and electrical box overheating, use a heat shield and/or a heat-absorbent compound.

• Clean up connections with degreasing agent.

• Flow nitrogen through the compressor.

• Use ux in paste or ux coated brazing rod.

• Use brazing rod with a minimum of 5% silver content.

• It is recommended to use double-tipped torch using acetylene to ensure a uniform heating of connection.

• For discharge connections brazing time should be less than 2 minutes to avoid NRVI damages if any.

• To enhance the resistance to rust, a varnish on the connection is recommended.

DSF compressors connectors are made of steel copper coated, which benet to protect against corrosion and facilitate adhesion during brazing operation.

As per standards practice in the refrigeration industry, Danfoss Commercial Compressor recommend to use of silver cadmium free solder alloy and ux (added or ux coated rods). The signicant silver content in these brazing alloy will help the brazing operation, providing an excellent uidity and a limited heating temperature. It will bring also a good resistance to corrosion, a proper elongation compatible with system vibration, and good behavior under thermal variation improving the strength of connection and limiting fractures and refrigerant leaks. (Crucial with A2L refrigerants).

A typical content of 30 – 40% Ag (Silver) is recommended by Danfoss.

CC-0052

1

Heat shield

Maximum compressor test pressures

DSF090-200

DSF270-325-485-530

Maximum compressor test pressure high side (HP)

53.6 bar (g) (777 psig) HP-LP<37 bar (537 psi)

Maximum compressor test pressure low side (LP)

36.7 bar (g) (533 psig) LP – HP <5 bar (73 psi) Maximum speed 4.8 bar/s (70 psi/s)

34.3 bar (g) (497 psig) LP – HP <5 bar (73 psi) Maximum speed 4.8 bar/s (70 psi/s)

(1)

Scroll compressors, DSF090 to DSF530 | Application

The use of self-ux alloys (as phosphorous alloys) is not recommended by Danfoss. This type of brazing require a higher working temperature, that may overheat the connectors, damaging the thin layer of copper, resulting in phosphides creation and joint zone embrittlement.

For more detailed information see "Brazing technique for compressors connectors" AP192186420580.

Before eventual un-brazing of the compressor or any system component, the refrigerant charge must be

removed and the installation vacuumed.

System pressure test and leak detection

The compressor has been strength tested and leak proof tested (<3g/year) at the factory. For system tests:

• Always use an inert gas such as Nitrogen or Helium.

• Pressurize the system on HP side rst then LP side.

• Do not exceed the following pressures indicated in table below.

Table 32: System pressure test and leak detection

(1)

DSF compressors have an internal non return valve

DSF compressors have an internal non return valve equalization between LP and HP side over scroll elements.

equalization between LP and HP side over scroll elements.

tting: the maximum pressurizing speed must be respected to ensure pressure

Vacuum evacuation and moisture removal

Requirements:

• Never use the compressor to evacuate the system.

• Connect a vacuum pump to both the LP and HP sides.

• Evacuate the system to a pressure of 500 μm Hg (0.67 mbar/0.02 in.Hg) absolute.

Recommendations:

• Energized heaters improve moisture removal.

• Alternate vacuum phases and break vacuum with Nitrogen to improve moisture removal.

For more detailed information see “Vacuum pump-down and dehydration procedure” AP000086424630en.

Refrigerant charging

Initial charge:

Scroll compressors, DSF090 to DSF530 | Application

• For the initial charge, the compressor must not run.

• Charge refrigerant as close as possible to the nominal system charge.

• This initial charging operation must be done in liquid phase between the condenser outlet and the lter drier.

If needed, a complement of charge can be done before evaporator, in liquid phase while compressor is running by slowly throttling liquid in.

Never bypass safety low pressure switch.

For more detailed information see “Recommended refrigerant system charging practice“ AP000086421422.

Dielectric strength and insulation resistance tests

Several tests have been performed on each compressor at the factory between each phase and ground.

• Dielectric strength test is done with a high potential voltage (hi-pot) of 2Un +1000 V AC at least, and leakage current must be less than 5 mA.

• Insulation resistance is measured with a 500 V DC megohm tester and must be higher than 1 megohm.

Recommendations:

• Additional dielectric test is not recommended as it may reduce motor lifetime. Nevertheless, if such as test is necessary, it must be performed at a lower voltage.

• Insulation resistance test can be done.

• The presence of refrigerant around the motor windings will result in lower resistance values to ground and higher leakage current readings. Such readings do not indicate a faulty compressor. To prevent this, the system can be rst operated briey to distribute refrigerant.

Do not use a megohm meter nor apply power to the compressor while it is under vacuum as this may cause

internal damage.

Commissioning

Preliminary check

Check electrical power supply:

• Phase order: Reverse rotation is obvious if the compressor do not build up pressure and sound level is abnormal high

DSF compressors are equipped with an electronic module: reverse rotation will be automatically detected. For more details refer to section Motor protection.

• Voltage and voltage unbalance within tolerance: For more details refer to section Motor voltage.

Initial start-up

• Surface sump heaters must be energized at least 6 hours in advance to remove refrigerant.

• A quicker start-up is possible by “jogging” the compressor to evacuate refrigerant. Start the compressor for 1 second, then wait for 1 to 2 minutes. After 3 or 4 jogs the compressor can be started. This operation must be repeated for each compressor individually.

System monitoring

The system must be monitored after initial startup for a minimum of 60 minutes to ensure proper operating characteristics such as:

• Correct superheat and subcooling.

• Current draw of individual compressors within acceptable values (max operating current).

• No abnormal vibrations and noise.

• Correct oil level.

Scroll compressors, DSF090 to DSF530 | Application

If Oil Top-up is needed, it must be done while the compressor is idle. Use the schrader connector or any other accessible connector on the compressor suction line. Always use original Danfoss POE oil 185SL from new cans. For more detailed information see “Lubricants lling in instructions for Danfoss Commercial Compressors”

AP000086435866.

Dismantle and disposal

Danfoss recommends that compressors and compressor oil should be recycled by a suitable company at its

site.

Compressor

model

Length

Width

Height

Gross weight

mm

inchmminchmminchkglbs

DSF090

565

22.2

470

18.5

718

28.369152

DSF100

565

22.2

470

18.5

718

28.369152

DSF115

565

22.2

470

18.5

718

28.376168

DSF130

565

22.2

470

18.5

718

28.376168

DSF155

565

22.2

470

18.5

718

28.379174

DSF175

565

22.2

470

18.5

718

28.381179

DSF200

565

22.2

470

18.5

718

28.384185

DSF240

760

29.9

600

23.6

99239124

273

DSF295

760

29.9

600

23.6

99239127

279

DSF485

760

29.9

600

23.6

99239191

420

DSF530

760

29.9

600

23.6

99239191

420

Compressor

model

Nbr

(1)

Length

Width

Height

Gross weight

Static stack‐

ing pallets

mm

inchmminchmminchkglbs

DSF09081150

45.3

950

37.4

680

26.8

494

10892DSF10081150

45.3

950

37.4

680

26.8

494

10892DSF11581150

45.3

950

37.4

750

29.5

544

11992DSF13081150

45.3

950

37.4

750

29.5

544

11992DSF15581150

45.3

950

37.4

750

29.5

566

12482DSF17581150

45.3

950

37.4

750

29.5

582

12832DSF20081150

45.3

950

37.4

750

29.5

606

13362DSF27061150

45.3

96538768

30.2

693

15282DSF32561150

45.3

96538768

30.2

712

15702DSF48541150

45.3

96538800

31.5

744

16402DSF53041150

45.3

96538800

31.5

744

1640

2

Scroll compressors, DSF090 to DSF530 | Packaging

Packaging

Single pack

Table 33: Single pack

Industrial pack

Table 34: Industrial pack

(1)

Number of compressors per pack.

Compressor model

Connections

Motor protection

Code no.

347

9

200-230/3/60

380-400 (415)/3/50

460/3/60

575/3/60

380-400/3/60

DSF090

Brazed

Internal

-

120H1635--

DSF100

Brazed

Internal

-

120H1637--

DSF115

Brazed

Internal

-

120H1639--

DSF130

Brazed

Internal

-

120H1503--

DSF155

Brazed

Internal

-

120H1475--

DSF175

Brazed

Internal

-

120H1477--

DSF200

Brazed

Internal

-

120H1479--

DSF270

Brazed

Module 24 V AC

(1)

-

120H1422--

Brazed

Module 110 – 240 V

(1)

-

120H1424--

DSF325

Brazed

Module 24 V AC

(1)

-

120H1426--

Brazed

Module 110 – 240 V

(1)

-

120H1428--

DSF485

Brazed

Module 24 V AC

(1)

-

120H1446--

Brazed

Module 110 – 240 V

(1)

-

120H1448--

DSF530

Brazed

Module 24 V AC

(1)

-

120H1430--

Brazed

Module 110 – 240 V

(1)

-

120H1432--

Scroll compressors, DSF090 to DSF530 | Ordering

Ordering

Compressor code numbers

Danfoss scroll compressors DSF can be ordered in either industrial packs or in single packs. Please use the code numbers from below tables for ordering.

For compressors DSF270 to DSF530 use in single applications, exible grommets are available as accessory kit

8156138.

Single pack

Table 35: Single pack

(1)

Electronic motor protection, module located in terminal box.



NOTE:

Mounting kit for DSF270 to DSF530 single compressor applications: Ref 8156138.

Industrial pack

Compressor model

Connections

Motor protection

Code no.

347

9

200-230/3/60

380-400 (415)/3/50

460/3/60

575/3/60

380-400/3/60

DSF090

Brazed

Internal

-

120H1636--

DSF100

Brazed

Internal

-

120H1638--

DSF115

Brazed

Internal

-

120H1640--

DSF130

Brazed

Internal

-

120H1502--

DSF155

Brazed

Internal

-

120H1474--

DSF175

Brazed

Internal

-

120H1476--

DSF200

Brazed

Internal

-

120H1478--

DSF270

Brazed

Module 24 V AC

(1)

-

120H1423--

Brazed

Module 110 – 240 V

(1)

-

120H1425--

DSF325

Brazed

Module 24 V AC

(1)

-

120H1427--

Brazed

Module 110 – 240 V

(1)

-

120H1429--

DSF485

Brazed

Module 24 V AC

(1)

-

120H1447--

Brazed

Module 110 – 240 V

(1)

-

120H1449--

DSF530

Brazed

Module 24 V AC

(1)

-

120H1431--

Brazed

Module 110 – 240 V

(1)

-

120H1433--

Scroll compressors, DSF090 to DSF530 | Ordering

Table 36: Industrial pack

(1)

Electronic motor protection, module located in terminal box.

Code no.

Description

Application

Packaging

Pack size

8156132

Gasket, 1"3/4

Models with 1"3/4 rotolock connection

Multipack108156133

Gasket, 2"1/4

Models with 2"1/4 rotolock connection

Multipack107956003

Gasket, 1"3/4

Models with 1"3/4 rotolock connection

Industry pack507956004

Gasket, 2"1/4

Models with 2"1/4 rotolock connection

Industry pack

50

Code no.

Description

Application

Packaging

Pack size

8153004

Solder sleeve P02 (1"3/4 Rotolock - 1"1/8 ODF)

Models with 1"3/4 rotolock connection

Multipack108153006

Solder sleeve P03 (2"1/4 Rotolock - 1"5/8 ODF)

Models with 2"1/4 rotolock connection

Multipack

10

Code no.

Description

Application

Packaging

Pack size

8153124

Rotolock nut,1"3/4

Models with 1-3/4" rotolock connection

Multipack108153126

Rotolock nut, 2"1/4

Models with 2-1/4" rotolock connection

Multipack

10

Code no.

Description

Application

Packaging

Pack size

120Z0584

Electronic motor protection module, 24 V AC

DSF270-530

Single pack1120Z0585

Electronic motor protection module, 110/240 V

DSF270-530

Single pack

1

Scroll compressors, DSF090 to DSF530 | Accessories and spare parts

Accessories and spare parts

Gaskets

Table 37: Gaskets

Solder sleeve

Table 38: Solder sleeve

Rotolock nut

Table 39: Rotolock nut

Motor protection modules

Table 40: Motor protection modules

Code no.

Description

Application

Packaging

Pack size

120Z0388

80W 24V surface sump heater CE and UL

DSF090 to 200

Multipack

8

120Z0389

80W 230V surface sump heater CE and UL

DSF090 to 200

Multipack

8

120Z0390

80W 400V surface sump heater CE and UL

DSF090 to 200

Multipack

8

120Z0391

80W 460V surface sump heater CE and UL

DSF090 to 200

Multipack

8

120Z0402

80W 575V surface sump heater CE and UL

DSF090 to 200

Multipack

8

120Z0667

48W 24V surface sump heater CE and UL

DSF090 to 200

Single pack

1

120Z0668

48W 230V surface sump heater CE and UL

DSF090 to 200

Single pack

1

120Z0669

48W 400V surface sump heater CE and UL

DSF090 to 200

Single pack

1

120Z0670

48W 460V surface sump heater CE and UL

DSF090 to 200

Single pack

1

120Z0671

48W 575V surface sump heater CE and UL

DSF090 to 200

Single pack

1

120Z0769

56W 24V surface sump heater + bottom insulation, CE & UL

DSF270-530

Multipack

6

120Z0770

56W 230V surface sump heater + bottom insulation, CE & UL

DSF270-530

Multipack

6

120Z0771

56W 400V surface sump heater + bottom insulation, CE & UL

DSF270-530

Multipack

6

Code no.

Description

Application

Packaging

Pack size

120Z0066

Mounting kit for scroll compressors. Grommets, sleeves, bolts, washers

DSF090 to 200

Single pack18156138

Mounting kit for scroll compressors. Grommets, sleeves, bolts, washers

DSF270-530 in single installation

Single pack

1

7777045

Mounting kit for scroll compressors. including hexagon rigid spacers, Grommets, Sleeves, Bolts, Washers

DSF270 to 530 Manifold installations 50 Hz when mounting directly on rail is not wished

Single pack

1

Code no.

Description

Packaging

Pack size

120Z0750

POE lubricant 185SL, 1 litre can

Multipack

12

Scroll compressors, DSF090 to DSF530 | Accessories and spare parts

Surface sump heaters

Table 41: Surface sump heaters

Mounting hardware

Table 42: Mounting hardware

Lubricant

Table 43: Lubricant

Code no.

Description

Application

Packaging

Pack Size

8156135

Service kit for terminal box 96 x 115 mm, including 1 cover, 1 clamp

DSF090 to 175

Multipack

10 8173230

T block connector 52 x 57 mm

DSF090 to 175

Multipack

10

8173021

T block connector 60 x 75 mm

DSF200

Multipack

10

120Z0413

Terminal box cover

DSF200

Single pack1120Z0458

Terminal box 210 x 190 mm, incl. cover

DSF270-530

Single pack1120Z0774

T block connector 80x80 mm

DSF270-530

Multipack

10

Code no.

Description

Application

Packaging

Pack Size

120Z0768

Acoustic hood DSF large scroll

DSF270-530

Single pack

1

Code no.

Description

Packaging

Pack Size

8156019

Sight glass with gaskets (black & white)

Multipack48156129

Gasket for oil sight glass, 1"1/8 (white

teon)

Multipack107956005

Gasket for oil sight glass, 1"1/8 (white

teon)

Multipack508154001

Danfoss Commercial Compressors blue spray paint

Single pack

1

Scroll compressors, DSF090 to DSF530 | Accessories and spare parts

Terminal boxes, covers and T-block connectors

Table 44: Terminal boxes, covers and T-block connectors

Acoustic hoods

Table 45: Acoustic hoods

Miscellaneous

Table 46: Miscellaneous

Tandem kits

Code no.

Description

Application

Packaging

Pack Size

120Z0634

Suction washer, rigid spacer, organ pipe, gasket

DSF260E-310E-DSF350E-DSF400E

Single pack1120Z0692

Suction washer, rigid spacer, organ pipe, gasket

DSF285U-305U-330U

Single pack1120Z0693

Suction washer, rigid spacer, organ pipe, gasket

DSF300U-315U

Single pack1120Z0694

Suction washer, rigid spacer, organ pipe, gasket

DSF331U-355U-DSF375U

Single pack1120Z0781

Kit tandem crossplatform

DSF400X-470X-DSF500X-DSF525X

Single pack1120Z0786

Kit tandem, solid,washer 24mm,OEL 1" 5/8

DSF800U

Single pack1120Z0787

Kit tandem, solid,washer 27mm,OEL 1" 5/8

DSF855U

Single pack1120Z0785

Kit tandem, solid, OEL 1"5/8

DSF970E-1060E

Single pack1120Z0792

Kit tandem, solid,OEL 1" 3/8

DSF540E-650E

Single pack1120Z0796

Kit tandem, solid,washer 31mm,OEL 1" 3/8

DSF595U

Single pack

1

Code no.

Description

Application

Packaging

Pack Size

120Z0714

Organ pipe, sleeves, rigid spacer, gasket, rubber grommet

DSF465T-DSF525T-DSF600T

Single pack

1

120Z0784

Kit trio, solid,washer 30 mm, OEL 1" 5/8

DSF810T-975T (left suction)

Single pack1120Z0790

Kit Trio,solid, OEL 1”5/8

DSF1180T (left suction)

Single pack1120Z0793

Kit trio, solid,washer 33 mm, OEL 1" 5/8

DSF1590T (left and right suction)

Single pack1120Z0794

Kit trio, solid,washer 34.5 mm, OEL 1" 5/8

DSF810T-975T (right suction)

Single pack1120Z0814

Kit Trio,solid,washer 26mm, OEL 1”5/8

DSF1385T ( left and right suction)

Single pack1120Z0815

Kit Trio,solid,washer 29mm (x2), OEL 1”5/8

DSF1180T (right suction)

Single pack

1

Scroll compressors, DSF090 to DSF530 | Accessories and spare parts

Table 47: Tandem kits

Trio kits

Table 48: Trio kits

Online support

Danfoss oers a wide range of support along with our products, including digital product information, software, mobile apps, and expert guidance. See the possibilities below.

The Danfoss Product Store

The Danfoss Product Store is your one-stop shop for everything product related—no matter where you are in the world or what area of the cooling industry you work in. Get quick access to essential information like product specs, code numbers, technical documentation, certications, accessories, and more. Start browsing at store.danfoss.com.

Find technical documentation

Find the technical documentation you need to get your project up and running. Get direct access to our ocial collection of data sheets, certicates and declarations, manuals and guides, 3D models and drawings, case stories, brochures, and much more.

Start searching now at www.danfoss.com/en/service-and-support/documentation.

Danfoss Learning

Danfoss Learning is a free online learning platform. It features courses and materials specically designed to help engineers, installers, service technicians, and wholesalers better understand the products, applications, industry topics, and trends that will help you do your job better.

Create your Danfoss Learning account for free at www.danfoss.com/en/service-and-support/learning.

Get local information and support

Local Danfoss websites are the main sources for help and information about our company and products. Find product availability, get the latest regional news, or connect with a nearby expert—all in your own language.

Find your local Danfoss website here: www.danfoss.com/en/choose-region.

Coolselector®2 - nd the best components for you HVAC/R system

Coolselector®2 makes it easy for engineers, consultants, and designers to nd and order the best components for refrigeration and air conditioning systems. Run calculations based on your operating conditions and then choose the best setup for your system design.

Download Coolselector®2 for free at coolselector.danfoss.com.

Ref Tools – essential tools for HVACR professionals

Get the guidance, support, information, and tools you need—on the job and in eld. Ref Tools is a free, powerful app that contains essential tools every air conditioning and refrigeration technician needs in their digital toolbelt.

Download Ref Tools for free at coolapps.danfoss.com

Any information, including, but not limited to information on selection of product, its application or use, product design, weight, dimensions, capacity or any other technical data in product manuals, catalogues descriptions, advertisements, etc. and whether made available in writing, orally, electronically, online or via download, shall be considered informative, and is only binding if and to the extent, explicit reference is made in a quotation or order conrmation. Danfoss cannot accept any responsibility for possible errors in catalogues, brochures, videos and other material. Danfoss reserves the right to alter its products without notice. This also applies to products ordered but not delivered provided that such alterations can be made without changes to form, t or function of the product. All trademarks in this material are property of Danfoss A/S or Danfoss group companies. Danfoss and the Danfoss logo are trademarks of Danfoss A/S. All rights reserved.

Danfoss DSF090, DSF530 Application guide

Specifications and Main Features

Frequently Asked Questions

User Manual

Contents

Safety and warnings

Introduction

Product description

Cut Away DSF090-200

Cut away DSF 270-530

How do IDVs work?

Name Plate

Nomenclature

Compressors serial number

Low voltage directive 2014/35/EU

Machines directive 2006/42/EC

Pressure equipment directive 2014/68/EU

Internal free volume

Refrigerants

General information

50-60 Hz data, Single compressor

Performance data

R32 50-60 Hz, Single compressor

Tandem and trio performances

Sound and vibration data

Compressor sound radiation

Mechanical vibrations

Operating envelope data

Operating envelope

Pressure settings

High and low pressure protection

Dimensions

Single compressors

Tandem assemblies

Trio assemblies

Connection Details

Mechanical connections

Design compressor mounting

General requirements

Single requirements DSF090-200 mounting

Single requirements, DSF270-325-485-530 mounting

Manifolding requirements DSF 180E-400E and DSF285U-305U-330U mounting

Manifolding requirements DSF 215U-230U-255U-275U-300U-315U-331U-355U-375U mounting

Tandem requirements DSF465T-525T-600T mounting

Tandem requirements DSF400X-470X-500X-525X mounting

Tandem requirements, DSF540E to DSF1590T mounting

Design piping

General requirements

Tandem and Trio requirements (Static)

Suction washer position

Oil equalization DSF180E-400E

Oil equalization design DSF 400X-470X-500X-525X

Oil equalization design DSF270-530

Electrical connections

Wiring connections

DSF090-175

DSF200

DSF270-325-485-530

Motor protection module

Motor voltage

IP rating

Terminal box temperature

Three phase electrical characteristics

Motor protection

Phase sequence and reverse rotation protection

Application

Manage oil in the circuit

Requirement

System evaluation

Test, criteria and solutions

Manage sound and vibration

Sound radiations

Gas pulsation

Mitigation methods

Manage operating envelope

Discharge temperature protection

System evaluation

Manage superheat

Requirement

System evaluation