Vertiv liebert-ds User Manual

Liebert® DS ThermalManagementSystem

System Design Catalog

35to 105kW (10to 30ton) Capacity, UpflowandDownflow,60Hz, Air Cooled, Water/Glycol Cooled, GLYCOOLEconomizerCoil, Dual-CoolDXwithSecondaryChilled WaterCoil

Vertiv™ Liebert® DS System Design Catalog

The information contained in this document is subject to change without notice and may not be suitable for all applications. While every precaution has been taken to ensure the accuracy and completeness of this document, Vertiv assumes no responsibility and disclaims all liability for damages resulting from use of this information or for any errors or omissions.

Refer to local regulations and building codes relating to the application, installation, and operation of this product. The consulting engineer, installer, and/or end user is responsible for compliance with all applicable laws and regulations relating to the application, installation, and operation of this product.

The products covered by this instruction manual are manufactured and/or sold by Vertiv. This document is the property of Vertiv and contains confidential and proprietary information owned by Vertiv. Any copying, use, or disclosure of it without the written permission of Vertiv is strictly prohibited.

Names of companies and products are trademarks or registered trademarks of the respective companies. Any questions regarding usage of trademark names should be directed to the original manufacturer.

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If you encounter any installation or operational issues with your product, check the pertinent section of this manual to see if the issue can be resolved by following outlined procedures.

Visit https://www.vertiv.com/en-us/support/ for additional assistance.

Vertiv™ | Liebert® DS System Design Catalog

Vertiv™ Liebert® DS System Design Catalog

TABLE OF CONTENTS

1 Nomenclature and Components 1

1.1 Vertiv™ Liebert® DS Model Number Nomenclature 1

1.2 Component Location 3

1.3 Cooling Configurations 3

1.4 Blower Configurations 4

2 System Data 9

2.1 Air Cooled Capacity and Performance Data 9

2.2 Water Cooled Capacity and Performance Data 15

2.3 Glycol Cooled Capacity and Performance Data 31

2.4 Vertiv™ Liebert® Econ-o-Coil and GLYCOOL Capacity and Performance Data 37

2.5 Physical Data 48

3 Electrical Power Requirements 51

3.1 Air Cooled Electrical Data 51

3.2 Water/Glycol Cooled Electrical Data 58

3.3 Electrical Field Connections 65

4 Planning Guidelines 67

4.1 Shipping Dimensions andUnitWeights 67

4.2 Planning Dimensions 70

5 Piping 71

5.1 Refrigerant Piping 73

5.1.1 Refrigerant Line Sizes and Equivalent Lengths 73

5.1.2 Refrigerant Charge Requirements for Air Cooled Systems 73

6 Heat Rejection—Vertiv™ Liebert® MC Condensers 75

6.1 Vertiv™ Liebert® MC Match-up Selections 75

6.2 Vertiv™ Liebert® MC Sound Data 76

6.3 Electrical Power Requirements 76

6.4 Vertiv™ Liebert® MC Shipping Dimensions and Weights 78

6.4.1 Condenser and Options Net Weights 78

6.5 Vertiv™ Liebert® MC Planning Dimensions 79

6.6 Vertiv™ Liebert® MC Piping 79

6.7 Vertiv™ Liebert® MC Electrical Field Connections 80

7 Heat Rejection—Vertiv™ Liebert® Drycoolers and Pumps 81

7.1 Vertiv™ Liebert® Drycooler Match-up Selections 81

7.2 Vertiv™ Liebert® Drycooler Electrical Power Requirements 83

7.3 Vertiv™ Liebert® Drycooler Planning Dimensions 87

7.4 Vertiv™ Liebert® Drycooler Piping Guidelines 87

7.5 Vertiv™ Liebert® Drycooler Electrical Field Connections 88

7.6 Vertiv™ Liebert® Drycooler Pump Packages 88

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Vertiv™ Liebert® DS System Design Catalog

7.6.1 Vertiv™ Liebert® Drycooler Expansion Tank 89

7.6.2 Tank 89

Appendices 91

Appendix A: Technical Support and Contacts 91

Appendix B: Disassembling the Vertiv™ Liebert® DS for Transport 93

Appendix C: Submittal Drawings 95

Appendix D: Guide Specifications 99

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Vertiv™ Liebert® DS System Design Catalog

1 Nomenclature and Components

This section describes the model number for Vertiv™ Liebert® DS units and components.

1.1 Vertiv™ Liebert® DS Model Number Nomenclature

Table 1.2 below describes each digit of the model number.

Table 1.1 Liebert® DS Model Number Example

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

D S 0 3 5 A D A 1 E I * * * *

Table 1.2 Liebert® DS Model Number Digit Definitions

Digit Description

Digits 1 and 2 = Airflow Distribution

DS = Downflow standard

VS = Upflow standard

Digit 3, 4, 5 = Nominal Cooling Capacity, kW

035 = 35 kW, 10 ton

042 = 42 kW, 12 ton

053 = 53 kW, 15 ton

070 = 70 kW, 20 ton

077 = 77 kW, 22 ton

105 = 105 kW, 30 ton

Digit 6 = Cooling Type

A = Air-cooled

D = Dual-cool, air cooled

H = Dual-cool, water cooled

K = GLYCOOL (Liebert® Economizer Coil)

W = Water/Glycol cooled

Digit 7 = Compressor Type

D = Digital scroll, R-407C

S = Scroll, R-407C

U = Semi-hermetic with 4-step, R-407C

V = Semi-hermetic with 4-step, R-407C

(DS105 water/glycol/GLYCOOL only)

1 Nomenclature and Components

1

Vertiv™ Liebert® DS System Design Catalog

Table 1.2 Liebert® DS Model Number Digit Definitions (continued)

Digit Description

Digit 8 = Voltage

A = 460V - 3ph - 60Hz

B = 575V - 3ph - 60Hz

C = 208V - 3ph - 60Hz

D = 230V - 3ph - 60Hz

2 = 380V - 3ph - 60Hz

Digit 9 = Fan Type

0 = Forward-curved blowers

1 = Electronically-commutated (EC) fans

Digit 10 = Reheat Type

0 = None

E = 3-stage electric

R = Reduced, 3-stage electric

Digit 11 = Humidifier

0 = No humidifier

I = Infrared Humidifier

Digit 12-15 = Factory Configuration Number

Not all combinations of options are available on all units:

• Digital Scroll Compressors

• Not available on VS042A with forward-curved blower

• Not available on 077 and 105 models

• 575-V available only on 035, 053 and 070 models

• Scroll Compressors

• Available on air cooled models 035–105

• Available on water/glycol models 035–070

• Scroll compressors not available on 77- and 105-kW models for water/glycol/GLYCOOL/DualCool units

• GLYCOOL Vertiv™ Liebert® Econ-o-Coil Models

• Available with digital scroll compressors on 035 to 070 models, and with semi-hermetic compressors on 077 to 105 models

• High Pressure Water Regulating Valve

• Not available on 042, 053, 070 and 077 models with semi-hermetic and scroll compressors

2

1 Nomenclature and Components

Vertiv™ Liebert® DS System Design Catalog

1.2 Component Location

The unit component locations are described in the submittal documents included in Submittal Drawings on page95 .

The following table lists the relevant documents by number and title.

Table 1.3 Component Location Drawings

Document Number Title

DPN003706 Component Location, Downflow Models

DPN003707 Component Location, Upflow Models

1.3 Cooling Configurations

Figure 1.1 Cooling Configurations for the Vertiv™ Liebert® DS

1 Nomenclature and Components

3

Vertiv™ Liebert® DS System Design Catalog

Table 1.4 Vertiv™ Liebert® DS Cooling Descriptions

Item Description

1

2

3

4

5

Air Cooled—Unit piping is spun closed from the factory and contains a nitrogen holding charge. Each installation requires refrigerant piping to a condenser.

Glycol Cooled—Units are factory-charged and tested. Field-supplied and field-installed piping is required from the unit to the Liebert® drycooler and pump package.

GLYCOOL-Integrated Fluid Economizer—Units are factory charged and tested. Field supplied and field installed piping is required from the unit to the Liebert® Drycooler and pump package. An additional Liebert® Economizer coil is included for use when fluid temperatures are sufficiently low (below room temperature). Economizer cooling is provided by circulating cold glycol through this second coil, reducing or eliminating compressor operation.

Water Cooled—Units are factory-charged and tested. Field-supplied and field-installed water piping is required from the unit to the cooling tower.

DUAL-COOL—System has all of the features of a compressorized system, but adds a second cooling coil that is connected to a source of chilled water. Cooling is provided by circulating chilled water, when available, through this second coil and reducing compressor operation.

1.4 Blower Configurations

Figure 1.2 Downflow Blower Configurations, Front and Rear Supply with EC Fans

4

1 Nomenclature and Components

Figure 1.3 Downflow Blower Configurations, Bottom and Under-floor Supply with EC Fans

Vertiv™ Liebert® DS System Design Catalog

NOTE: Under-floor supply-air EC fans requires a minimum height of 24-in.

1 Nomenclature and Components

5

Vertiv™ Liebert® DS System Design Catalog

Figure 1.4 Upflow Blower Configurations with ECFans in a Plenum

NOTE: In upflow units with EC fans in the plenum, supply air exits the front or rear only. Figure 1.4 above represents the possible options.

Figure 1.5 Upflow Blower Configurations, Front Return with Forward Curved Blowers

6

1 Nomenclature and Components

Figure 1.6 Upflow Blower Configurations, Rear Return with Forward Curved Blowers

Vertiv™ Liebert® DS System Design Catalog

1 Nomenclature and Components

7

Vertiv™ Liebert® DS System Design Catalog

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1 Nomenclature and Components

Vertiv™ Liebert® DS System Design Catalog

2 System Data

2.1 Air Cooled Capacity and Performance Data

Table 2.1 Air Cooled Data for Downflow with EC Fan(s), 60 Hz Models

Model Size - Downflow Configuration DS035 DS042 DS053 DS070 DS077 DS105

DX Evaporator - Net Capacity Data at 95°F (35°C) Outdoor Ambient

Compressor Type Digital Scroll

Microchannel Liebert® MC Match-up at 95°F (35°C) Outdoor Ambient

85°F DB1, 64.4°F WB, 52°F DP, 32%RH (29.4°C DB, 18°C WB)

80°F DB, 62.7°F WB, 52°F DP,

38%RH (26.7°C DB, 17.1°C WB)

75°F DB2, 61°F WB, 52°F DP,

44%RH (23.9°C DB, 16.1°C WB)

Compressor Type Scroll (Two Step Cooling)

Microchannel Liebert® MC Match-up at 95°F (35°C) Outdoor Ambient

85°F DB1, 64.4°F WB, 52°F DP, 32%RH (29.4°C DB, 18°C WB)

Total, kW (BTUH)

Sensible, kW (BTUH)

Total, kW (BTUH)

Sensible, kW (BTUH)

Total. kW (BTUH)

Sensible, kW (BTUH)

Total, kW (BTUH)

Sensible, kW (BTUH)

MCS056 MCS056 MCS056 MCM080 MCM080 MCL110

39.3

(134,000)

39.3

(134,000)

37.4

(127,000)

36.2

(123,000)

35.9

(122,000)

32,3

(110,000)

MCS056 MCS056 MCS056 MCM080 MCM080 MCL110

39.6

(135,000)

39.5

(134,000)

43.1

(147,000)

43.1

(147,000

40.9

(139,000)

40.1

(136.000)

39.2

(133,000)

35.9

(122,000)

43.4

(148,000)

43.4

(148,000)

59.8

(204,000)

59.8

(204,000)

56.9

(194,000)

55.4

(189,000)

54.3

(185,000)

49.8

(1699,000)

60.6

(206,000)

60.5

(206,000)

74.1 (252,000)

73.2 (249,000)

70.9 (241,000)

67.3 (229,000)

68.1

(232,000)

60.2 (205,000)

75.7 (258,000)

74.5 (254,000)

Semi-hermetic (Four Step Cooling)

79.2 (270,000)

78.7 (268,000)

75.4 (257,000)

72.4 (247,000)

72.2

(246,000)

64.7 (220,000)

81.3 (277,000)

80.4 (274,000)

105.6 (360,000)

101.1 (344,000)

101.3 (345,000)

92.2 (314,000)

97.4

(332,000)

82.2 (280,000)

105.9 (361,000)

101.3 (345,000)

2 System Data

80°F DB, 62.7°F WB, 52°F DP,

38%RH (26.7°C DB, 17.1°C WB)

75°F DB2, 61°F WB, 5.2°FDP,

44%RH (23.9°C DB, 16.1°C WB)

FANSECTION - EC Down

Return Air Volume, ACFM (ACMH)

Total, kW (BTUH)

Sensible, kW (BTUH)

Total, kW (BTUH)

Sensible, kW (BTUH)

37.8

(128,000)

36.4

(124,000)

36.3

(123,000)

32.5

(110,000)

5,200

(8,835)

41.3

(140,000)

40.3

(137,000)

39.6

(135,000)

36.1

(123,000)

6,200

(10,534)

57.8

(197,000)

56.1

(191,000)

55.4

(189,000)

50.4

(171,000)

8,000

(13,592)

72.6 (247,000)

68.3 (233,000)

69.9

(238,000)

61.1 (208,000)

9,600 (16,310)

77.8 (265,000)

73.9 (252,000)

75.0

(255,000)

64.2 (219,000)

11,000 (18,689)

2a

101.9 (347,000)

92.5 (315,000)

98.2

(335,000)

82.5 (281,000)

13,700 (23,276)

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Vertiv™ Liebert® DS System Design Catalog

Table 2.1 Air Cooled Data for Downflow with EC Fan(s), 60 Hz Models (continued)

Model Size - Downflow Configuration DS035 DS042 DS053 DS070 DS077 DS105

Standard Fan Motor, hp (kW) 3.75 (2.8) 3.75 (2.8) 4.15 (3.1) 4.15 (3.1) 4.15 (3.1) 3.6 (2.7)

Number of Fans 1 1 2 2 2 3

External Static Pressure, in. w.g. (Pa) 0.2 (50)

1. Certified in accordance with the AHRI Datacom Cooling Certification Program at AHRI Standard 1360 (I-P) Standard Rating Conditions. Certified units may be found in the AHRI Directory at www.ahridirectory.org.

2. Certified in accordance wit h the AHRI Standard 127-2007 Standard Rating Conditions. Certified units may be found in the Compliance Certification Database at www.regulations.doe.gov. 2a. Performance data derived from Return ACFM required to be listed in Compliance Certification Database. (DS077 = 10,000),

3. Some options or combinations of options may result in reduced air flow. Consult factory for recommendations.

4. Net capacity data has fan motor heat factored in for all ratings.

5. Consult factory for alternate performance outputs. Performance data generated in LRSUpdate Version 06-22-2022.

6. See 2.4 on page37 for Optional Dual Cool Performance.

1,2

0.2 (50)

1,2

0.2 (50)

1,2

0.2 (50)

1,2

0.2 (50)

1,2

0.2 (50)

1,2

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2 System Data

Vertiv™ Liebert® DS System Design Catalog

Table 2.2 Air Cooled Data for Upflow with EC Fan(s), 60 Hz Models

Model Size - Upflow Configuration VS035 VS042 VS053 VS070 VS077 VS105

Liebert® DX Evaporator - Net Capacity Data at 95°F (35°C) Outdoor Ambient

Compressor Type Digital Scroll

Microchannel Liebert® MC Match-up at 95°F (35°C) Outdoor Ambient

Total, kW (BTUH)

85°F DB1, 64.4°F WB, 52°F DP, 32%RH (29.4°C DB, 18°C WB)

Sensible, kW (BTUH)

MCS056 MCM080 MCS056 MCM080 MCL110 MCM160

37.6

(128,000)

37.4

(128,000)

43.3

(148,000)

43.0

(147,000)

External Static Pressure, in.w.g.

0.41(100) 0.41(100) 0.41(100)

(Pa)

80°F DB, 62.7°F WB, 52°F DP, 38%RH (26.7°C DB, 17.1°C WB)

Total, kW (BTUH)

Sensible, kW (BTUH)

35.8

(122,000)

34.2

(117,000)

41.3

(141,000)

39.2

(134,000)

External Static Pressure, in.w.g.

0.5 (125) 0.5 (125) 0.5 (125) 0.5 (125) 0.5 (125) 0.5 (125)

(Pa)

75°F DB2, 61°F WB, 52°F DP, 44%RH (23.9°C DB, 16.1°C WB)

Total, kW (BTUH)

Sensible, kW (BTUH)

33.8

(115,000)

29.9

(102,000)

39.1

(133,000)

34.3

(117,000)

External Static Pressure, in.w.g.

1.02(250) 1.02(250) 1.02(250) 1.02(250) 1.02(250) 1.02(250)

(Pa)

57.9

(197,600)

57.9

(197,600)

54.8

(187,000)

53.5

(182,500)

51.5

(175,700)

47.3

(161,400)

71.6

(244,300)

71.0

(242,300)

1

0.5

(125)

68.5

(233,700)

65.3

(222,800)

64.9

(221,400)

57.4

(195,900)

Semi-hermetic (Four Step

Cooling)

81.2

(277,100)

79.8

(272,300)

0.5

(125)

77.5

(264,400)

72.9

(248,700)

73.3

(250,100)

62.8

(214,300)

1

2a

102.0

(348,000)

97.3

(332,000)

0.5

(125)

97.9

(334,000)

88.6

(302,300)

93.0

(317,300)

76.7

(261,700)

1

2a

2 System Data

Compressor Type Scroll (Two Step Cooling)

Microchannel Liebert® MC Match-up at 95°F (35°C) Outdoor Ambient

Total, kW (BTUH)

85°F DB1, 64.4°F WB, 52°F DP, 32%RH (29.4°C DB, 18°C WB)

Sensible, kW (BTUH)

MCS056 MCS056 MCS056 MCM080 MCL110 MCM160

37.8

(129,000)

37.5

(128,000)

41.6

(142,000)

41.5

(142,000)

59.0

(201,300)

59.0

(201,300)

73.4

(250,500)

72.3

(246,700)

External Static Pressure, in.w.g.

0.41(100) 0.41(100) 0.41(100) 0.51(125) 0.51(125) 0.51(125)

(Pa)

80°F DB, 62.7°F WB, 52°F DP, 38%RH (26.7°C DB, 17.1°C WB)

Total, kW (BTUH)

Sensible, kW (BTUH)

External Static Pressure, in.w.g. (Pa)

36.1

(123,000)

34.2

(117,000)

0.5

(125)

39.6

(135,000)

38.2

(130,000)

0.5

(125)

56.0

(191,100)

54.7

(186,600)

0.5

(125)

70.3

(239,900)

66.3

(226,200)

0.5

(125)

83.3

(284,200)

81.3

(277,400)

79.8

(272,300)

74.1

(252,800)

0.5

(125)

102.0

(348,000)

97.5

(332,700)

98.4

(335,800)

88.8

(303,000)

0.5

(125)

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Vertiv™ Liebert® DS System Design Catalog

Table 2.2 Air Cooled Data for Upflow with EC Fan(s), 60 Hz Models (continued)

Model Size - Upflow Configuration VS035 VS042 VS053 VS070 VS077 VS105

75°F DB2, 61°F WB, 52°F DP, 44%RH (23.9°C DB, 16.1°C WB)

Total, kW (BTUH)

Sensible, kW (BTUH)

34.2

(117,000)

30.0

(102,000)

37.4

(128,000)

33.4

(114,000)

52.8

(180,200)

48.4

(165,100)

66.8

(227,900)

58.3

(198,900)

75.9

(259,000)

64.0

(218,400)

2a

93.6

(319,400)

77.0

(262,700)

External Static Pressure, in.w.g.

1.02(250) 1.02(250) 1.02(250) 1.02(250) 1.02(250) 1.02(250)

(Pa)

FAN SECTION - EC Up

Return Air Volume, ACFM (ACMH)

5,200

(8,835)

6,200

(10,534)

8,000

(13,592)

9,600

(16,310)

11,000

(18,689)

13,700

(23,276)

Standard Fan Motor, hp (kW) 3.75 (2.8) 3.75 (2.8) 4.15 (3.1) 4.15 (3.1) 4.15 (3.1) 3.6 (2.7)

Number of Fans 1 1 2 2 2 3

1. Certified in accordance with the AHRI Datacom Cooling Certification Program at AHRI Standard 1360 (I-P) Standard Rating Conditions. Certified units may be found in the AHRI Directory at www.ahridirectory.org.

2. Certified in accordance with the ASHRAE Standard 127-2007 Standard Rating Conditions. Certified units may be found in the Compliance Certification Database at www.regulations.doe.gov. 2a. Performance data derived from Return ACFM required to be listed in Compliance Certification Database. (VS077=10,400; VS105=13,200)

3. Some options or combinations of options may result in reduced air flow. Consult factory for recommendations.

4. Net capacity data has fan motor heat factored in for all ratings.

5. Consult factory for alternate performance outputs. Performance data generated in LRS Update Version 06-22-2022.

6. See Table 2.14 on page39 for Optional Dual Cool Performance.

2a

12

2 System Data

Vertiv™ Liebert® DS System Design Catalog

Table 2.3 Air Cooled Data for Upflow with Centrifugal (Forward Curved) Fan(s), 60 Hz Models

Model Size - Upflow Configuration VS035 VS042 VS053 VS070 VS077 VS105

Liebert® DX Evaporator - Net Capacity Data at 95°F (35°C) Outdoor Ambient

Compressor Type Digital Scroll

Microchannel Liebert® MC Match-up at 95°F (35°C) Outdoor Ambient

Total, kW (BTUH)

85°F DB1, 64.4°F WB, 52°F DP, 32%RH (29.4°C DB, 18°C WB)

Sensible, kW (BTUH)

MCS056 MCS056 MCM080 MCL110 MCM160

37.1

(127,000)

37.1

(127,000)

External Static Pressure, in.w.g.

0.41(100) 0.41(100) 0.51(125) 0.51(125) 0.51(125)

(Pa)

35.2

(120,000)

34.0

(116,000)

0.5

(125)

33.3

(114,000)

29.2

(100,000)

2a

80°F DB, 62.7°F WB, 52°F DP, 38%RH (26.7°C DB, 17.1°C WB)

75°F DB2, 61°F WB, 52°F DP, 44%RH (23.9°C DB, 16.1°C WB)

Total, kW (BTUH)

Sensible, kW (BTUH)

External Static Pressure, in.w.g. (Pa)

Total, kW (BTUH)

Sensible, kW (BTUH)

External Static Pressure, in.w.g.

1.02(250) 1.02(250) 1.02(250) 1.02(250) 1.02(250)

(Pa)

Semi-hermetic (Four Step

Cooling)

57.8

(197,200)

57.8

(197,200)

54.7

(186,600)

53.4

(182,200)

71.4

(243,600)

70.7

(241,200)

68.2

(232,700)

65.0

(221,800)

80.8

(275,700)

79.4

(270,900)

77.1

(263,100)

72.4

(247,000)

102.0

(348,000)

98.3

(335,400)

97.4

(332,300)

89.7

(306,100)

0.5 (125) 0.5 (125) 0.5 (125) 0.5 (125)

51.4

(175,400)

47.2

(161,100)

64.6

(220,400)

57.1

(194,800)

72.9

(248,700)

62.1

(211,900)

2a

(314,900)

78.3

2a

(267,200)

92.3

2 System Data

Compressor Type Scroll (Two Step Cooling)

Microchannel Liebert® MC Match-up at 95°F (35°C) Outdoor Ambient

Total, kW (BTUH)

85°F DB1, 64.4°F WB, 52°F DP, 32%RH (29.4°C DB, 18°C WB)

Sensible, kW (BTUH)

MCS056 MCM080 MCS056 MCM080 MCM160 MCM160

37.3

(127,000)

37.3

(127,000)

41.8

(143,000)

41.8

(143,000)

58.9

(201,000)

58.9

(201,000)

73.1

(249,400)

72.0

(245,700)

External Static Pressure, in.w.g.

0.41(100) 0.41(100) 0.41(100) 0.51(125) 0.51(125) 0.51(125)

(Pa)

Compressor Type Scroll (Two Step Cooling)

80°F DB, 62.7°F WB, 52°F DP, 38%RH (26.7°C DB, 17.1°C WB)

Total, kW (BTUH)

Sensible, kW (BTUH)

External Static

35.5

(121,000)

34.1

(116,000)

0.5 (125) 0.5 (125) 0.5 (125) 0.5 (125) 0.5 (125) 0.5 (125)

39.6

(135,000)

38.3

(131,000)

55.9

(190,700)

54.5

(186,000)

70.1

(239,200)

66.1

(225,500)

83.6

(285,300)

81.3

(277,400)

80.2

(273,700)

74.0

(252,500)

102.0

(348,000)

98.5

(336,100)

97.9

(334,000)

89.9

(306,800)

13

Vertiv™ Liebert® DS System Design Catalog

Table 2.3 Air Cooled Data for Upflow with Centrifugal (Forward Curved) Fan(s), 60 Hz Models (continued)

Model Size - Upflow Configuration VS035 VS042 VS053 VS070 VS077 VS105

Pressure, in.w.g. (Pa)

75°F DB2, 61°F WB, 52°F DP, 44%RH (23.9°C DB, 16.1°C WB)

Total, kW (BTUH)

Sensible, kW (BTUH)

33.5

(114,000)

29.8

(102,000)

2a

37.8

(129,000)

32.8

(112,000)

2a

(179,500)

48.2

2a

(164,500)

52.6

66.5

(226,900)

58.1

(198,200)

76.3

(260,300)

63.6

(217,000)

2a

92.9

(317,000)

78.5

(267,900)

External Static Pressure, in.w.g.

1.02(250) 1.02(250) 1.02(250) 1.02(250) 1.02(250) 1.02(250)

(Pa)

FAN SECTION - Centrifugal (Forward Curved)

Return Air Volume, ACFM (ACMH)

5,500

(9,345)

6,600

(11,213)

8,000

(13,592)

9,600

(16,310)

11,000

(18,689)

14,600

(24,805)

Standard Fan Motor, hp (kW) 3.0 (2.2) 5.0 (3.7) 3.0 (2.2) 5.0 (3.7) 7.5 (5.6) 10.0 (7.5)

Optional Fan Motor, hp (kW) 5.0 (3.7) 7.5 (5.6) 5.0 (3.7) 7.5 (5.6) 10.0 (7.5) 15.0 (11.2)

Number of Fans 1 1 2 2 2 3

1. Certified in accordance with the AHRI Datacom Cooling Certification Program at AHRI Standard 1360 (I-P) Standard Rating Conditions. Certified units may be found in the AHRI Directory at www.ahridirectory.org.

2. Certified in accordance with the ASHRAE Standard 127-2007 Standard Rating Conditions. Certified units may be found in the Compliance Certification Database at www.regulations.doe.gov. 2a. Performance data derived from Return ACFM required to be listed in Compliance Certification Database. (VS035=5,100; VS042=6,000; VS077=10,200)

3. Some options or combinations of options may result in reduced air flow. Consult factory for recommendations.

4. Net capacity data has fan motor heat factored in for all ratings.

5. Consult factory for alternate performance outputs. Performance data generated in LRS Update Version 06-22-2022.

6. See Table 2.15 on page41 for Optional Dual Cool Performance.

14

2 System Data

Vertiv™ Liebert® DS System Design Catalog

2.2 Water Cooled Capacity and Performance Data

Table 2.4 Water Cooled Data for Downflow with EC Fan(s), 60 Hz Models

Model Size - Downflow DS035 DS042 DS053 DS070 DS077 DS105

Liebert® DX Evaporator - Net Capacity Data with 83°F Entering and 95°F Leaving Fresh Water Temperatures

Compressor Type Digital Scroll

85°F DB1,

64.4°F

WB, 52°F

DP,

32%RH

(29.4°C

DB, 18°C

WB)

80°F DB,

62.7°F WB, 52°F DP, 38%RH

(26.7°C

DB, 17.1°C

WB)

Total, kW (BTUH)

Sensible, kW (BTUH)

Flow Rate, GPM (lps) 31.1 (2.0) 35.0 (2.2) 46.8 (2.9) 58.3 (3.7) 64.3 (4.1.) 78.9 (5.0)

Unit Pressure Drop, ft of Water (kPa) 10.9 (32.6) 13.6 (40.7) 13.1 (39.2) 19.9 (59.5) 23.9(71.5) 31.2 (93.3)

Heat Rejection, kW (BTUH)

Total, kW (BTU

Sensible, kW (BTUH)

Flow Rate, GPM (lps) 29.8 (1.9) 33.5 (2.1) 45 (2.8) 56.3 (3.5) 62.1 (3.9) 76.1 (4.8)

Unit Pressure Drop, ft of Water (kPa) 10.0 (29.9) 12.5 (37.4) 12.2 (36.5) 18.6 (55.6) 22.3 (66.7) 29.2 (87.3)

Heat Rejection, kW (BTUH)

42.5

(145,000)

42.4

(145,000)

54.5

(186,000)

40.3

(138,000)

38.7

(132,000)

52.2

(178,000)

47.6

(162,000)

47.5

(162,000)

61.2

(209,000)

45.1

(154,000)

43.7

(149,000)

58.6

(200,000)

66.5

(227,000)

64.9

(221,000)

81.9

(279,000)

63.3

(216,000)

59.3

(202,000)

78.8

(269,000)

1

(275,000)

(265,000)

(349,000)

(264,000)

(241,000)

(336,000)

80.7

77.7

102.2

77.3

70.7

98.6

Semi-hermetic (Four Step

Cooling)

86.9

(297,000)

84.3

(288,000)

112.8

(385,000)

83.0

(283,000)

76.7

(262,000)

108.7

(371,000)

106.5

(363,000)

102.6

(350,000)

138.2

472,000)

101.8

(347,000)

93.9

(320,000)

133.4

(455,000)

Total, kW (BTUH)

75°F DB,

61°F WB,

52°F DP,

44%RH

(23.9°C

DB, 16.1°C

WB)

Compressor Type Scroll (Two Step Cooling)

85°F DB1,

64.4°F

WB, 52°F

DP,

32%RH

(29.4°C

DB, 18°C

WB)

80°F DB,

Sensible, kW (BTUH)

Flow Rate, GPM (lps) 28.6 (1.8) 32.2 (2.0) 43.3 (2.7) 54.4 (3.4) 59.9 (3.8) 73.5 (4.6)

Unit Pressure Drop, ft of Water (kPa) 9.3 (27.8) 11.6 (34.7) 11.3 (33.8) 17.4 (52) 20.9 (62.5) 27.3 (81.6)

Heat Rejection, kW (BTUH)

Total, kW (BTUH)

Sensible, kW (BTUH)

Flow Rate, GPM (lps) 29.6 (1.9) 34.4 (2.2) 46.8 (2.9) 58.7 (3.7)

Unit Pressure Drop, ft of Water (kPa) 9.9 (29.6) 13.1 (39.2) 13.1 (39.2) 20.2 (60.4)

Heat Rejection, kW (BTUH)

Total, kW (BTUH)

38.4

(131,000)

34.5

(118,000)

50.1

(171,000)

41.1

(140,000)

41.1

(140,000)

51.8

(177,000)

39.0 45.4 63.6 78.0

43.0

(147,000)

38.9

(133,000)

56.4

(192,000)

47.8

(163,000)

47.7

(163,000)

60.2

(205,000)

60.3

(206,000)

52.9

(181,000)

75.8

(259,000)

66.5

(227,000)

65.0

(222,000)

82.0

(280,000)

74.1

(253,000_

63.0

(215,000)

95.3

(325,000)

81.3

(277,000)

78.0

(266,000)

102.8

(351,000)

79.4

(271,000)

68.2

(233,000)

105.0

(358,000)

97.5

(333,000)

84.1

(287,000)

128.7

(439,000)

2 System Data

15

Vertiv™ Liebert® DS System Design Catalog

Table 2.4 Water Cooled Data for Downflow with EC Fan(s), 60 Hz Models (continued)

Model Size - Downflow DS035 DS042 DS053 DS070 DS077 DS105

(133,000) (155,000) (217,000) (266,000)

62.7°F WB,

52°F DP, 38%RH (26.7°C DB, 17.1°C

Sensible, kW (BTUH)

37.9

(129,000)

Flow Rate, GPM (lps) 28.3 (1.8) 33.0 (2.1) 45.2 (2.8) 56.8 (3.6)

Unit Pressure Drop, ft of Water (kPa) 9.1 (27.2) 12.1 (36.2) 12.3 (36.8) 18.9 (56.5)

43.9

(150,000)

59.5

(203,000)

71.1

(243,000)

WB)

Heat Rejection, kW (BTUH)

Total, kW (BTUH)

49.6

(169,000)

37.2

(127,000)

57.8

(197,000)

43.4

(148,000)

79.2

(270,000)

60.9

(208,000)

99.5

(340,000)

75.0

(256,000) 75°F DB, 61°F WB, 52°F DP, 44%RH (23.9°C DB, 16.1°C

Sensible, kW (BTUH)

33.8

(115,000)

Flow Rate, GPM (lps) 27.3 (1.7) 31.8 (2.0) 43.7 (2.8) 55.0 (3.5)

Unit Pressure Drop, ft of Water (kPa) 8.5 (25.4) 11.3 (33.8) 11.5 (34.4) 17.8 (53.2)

39.1

(133,000)

53.1

(181,000)

63.5

(217,000)

WB)

Heat Rejection, kW (BTUH)

47.8

(163,000)

55.8

(190,000)

76.5

(261,000)

96.4

(329,000)

FANSECTION- ECDown

Return Air Volume, ACFM (ACMH)

5,200

(8,835)

6,200

(10,534)

8,000

(13,592)

9,600

(16,310)

11,000

(18,689)

13,700

(23,276)

Standard Fan Motor, hp (kW) 3.75 (2.8) 3.75 (2.8) 4.15 (3.1) 4.15 (3.1) 4.15 (3.1) 3.6 (2.7)

Number of Fans 1 1 2 2 2 3

External Static Pressure, in.w.g. (Pa) 0.2 (50)

1,2

0.2 (50)

1,2

0.2 (50)

1,2

0.2 (50)

1,2

0.2 (50)

1,2

0.2 (50)

1,2

1. Certified in accordance with the AHRI Datacom Cooling Certification Program at AHRI Standard 1360 (1-P) Standard Rating Conditions. Certified units may be found in the AHRI Directory at www.ahridirectorv.org.

2. Certified in accordance with the ASHRAE Standard 127-2007 Standard Rating Conditions. Certified units may be found in the Compliance Certification Database at www.regulations.doe.gov.

3. Some options or combinations of options may result in reduced air flow. Consult factory for recommendations.

4. Net capacity data has fan motor heat factored in for all ratings.

5. Consult factory for alternate performance outputs. Performance data generated in LRS Update Version 06-22-2022.

6. See Table 2.15 on page41 for Optional Dual Cool Performance.

16

2 System Data

Vertiv™ Liebert® DS System Design Catalog

Table 2.5 Water Cooled Data for Downflow with EC Fan(s), 60 Hz Models

Model Size - Downflow DS035 DS042 DS053 DS070 DS077 DS105

Liebert® DX Evaporator - Net Capacity Data with 86°F Entering and 95°F Leaving Fresh Water Temperatures

Compressor Type Digital Scroll

85°F DB, 64.4°F WB, 52°F DP, 32%RH (29.4°C DB, 18°C WB)

80°F DB, 62.7°F WB, 52°F DP, 38%RH (26.7°C DB, 17.1°C WB)

Total, kW (BTUH)

Sensible, kW (BTUH)

42.2

(144,000)

42.1

(144,000)

Flow Rate, GPM (lps) 41.4 (2.6) 46.5 (2.9) 62.2 (3.9) 77.7 (4.9) 82.5 (5.2) 101.3 (6.4)

Unit Pressure Drop, ft of Water (kPa)

Heat Rejection, kW (BTUH)

Total, kW (BTUH)

Sensible, kW (BTUH)

18.8 (56.2) 23.4 (70.0) 22.6 (67.6) 34.5 (103.2) 38.4 (114.8) 50.1 (149.8)

54.3

(185,000)

40.0

(136,000)

38.5

(131,000)

Flow Rate, GPM (lps) 39.6 (2.5) 44.5 (2.8) 59.8 (3.8) 74.9 (4.7) 85.6 (5.4) 104.9 (6.6)

Unit Pressure Drop, ft of Water (kPa)

Heat Rejection, kW (BTUH)

17.3 (51.7) 21.5 (64.3) 20.9 (62.5) 32.1 (96.0) 41.2 (123.2) 53.6 (160.3)

52.0

(177,000)

47.2

(161,000)

47.2

(161,000)

61.1

(208,000)

44.7

(153,000)

43.4

(148,000)

58.4

(199,000)

66.0

(225,000)

64.6

(220,000)

81.7

(279,000)

62.8

(214,000)

59.0

(201,000)

78.5

(268,000)

2

80.0

(273,000)

77.3

(264,000)

101.9

(348,000)

76.6

(261,000)

70.3

(240,000)

98.4

(336,000)

Semi-hermetic (Four Step

Cooling)

82.2

(280,000)

76.2

(260,000)

108.2

(369,000)

86.1

(294,000)

83.8

(286,000)

112.3

(383,000)

100.8

(344,000)

93.3

(318,000)

132.8

(453,000)

105.5

(360,000)

101.9

(348,000)

137.7

(470,000)

75°F DB2, 61°F WB, 52°F DP, 44%RH (23.9°C DB, 16.1"C WB)

Total, kW (BTUH)

Sensible, kW (BTUH)

38.1

(130,000)

34.3

(117,000)

Flow Rate, GPM (lps) 38.1 (2.4) 42.8 (2.7) 57.6 (3.6) 72.4 (4.6) 79.6 (5.0) 97.7 (6.2)

Unit Pressure Drop, ft of Water (kPa)

Heat Rejection, kW (BTUH)

16.0 (47.8) 19.9 (59.5) 19.5 (58.3) 30.1 (90.0) 35.8 (107.0) 46.7 (139.6)

50.0

(171,000)

42.6

(145,000)

38.7

(132,000)

56.2

(192,000)

59.8

(204,000)

52.6

(179,000)

75.6

(258,000)

73.4

(250,000)

62.7

(214,000)

95.1

(324,000)

Compressor Type Scroll (Two Step Cooling)

85°F DB, 64.4°F WB, 52°F DP, 32%RH (29.4°C DB, 18°C WB)

Total, kW (BTUH)

Sensible, kW (BTUH)

40.9

(140,000)

40.9

(140,000)

Flow Rate, GPM (lps) 39.4 (2.5) 45.7 (2.9) 62.3 (3.9) 78.1 (4.9)

Unit Pressure Drop, ft of Water (kPa)

Heat Rejection, kW (BTUH)

17.1 (51.1) 22.6 (67.6) 22.7 (67.9) 34.9 (104.4)

51.7

(176,000)

47.4

(162,000

47.4

(162,000)

60.0

(205,000)

66.0

(225,000)

64.6

(220,000)

81.8

(279,000)

80.6

(275,000)

77.6

(265,000)

102.5

(350,000)

78.6

(268,000)

67.8

(231,000)

104.5

(357,000)

96.4

(329,000)

83.6

(285,000)

128.2

(437,000)

2 System Data

17

Vertiv™ Liebert® DS System Design Catalog

Table 2.5 Water Cooled Data for Downflow with EC Fan(s), 60 Hz Models (continued)

Model Size - Downflow DS035 DS042 DS053 DS070 DS077 DS105

80°F DB, 62.7°F WB, 52°F DP, 38%RH (26.7°C DB, 17.1°C WB)

75°F DB2, 61°F WB, 52°F DP, 44%RH (23.9°C DB, 16.1"C WB)

FANSECTION - EC Down

Return Air Volume, ACFM (ACMH)

Total, kW (BTUH)

Sensible, kW (BTUH)

38.8

(132,000)

37.8

(129,000)

45.0

(154,000)

43.6

(149,000)

63.1

(215,000)

59.2

(202,000)

77.4

(264,000)

70.7

(241,000)

Flow Rate, GPM (lps) 37.7 (2.4) 43.9 (2.8) 60.1 (3.8) 75.6 (4.8)

Unit Pressure Drop, ft of Water (kPa)

Heat Rejection, kW (BTUH)

Total, kW (BTUH)

Sensible, kW (BTUH)

15.7 (46.9) 20.9 (62.5) 21.2 (63.4) 32.7 (97.8)

49.5

(169,000)

36.9

(126,000)

33.7

(115,000)

57.6

(197,000)

43.0

(147,000)

38.9

(133,000)

79.0

(270,000)

60.4

(206,000)

52.9

(181,000)

99.2

(338,000)

74.4

(254,000)

63.2

(216,000)

Flow Rate, GPM (lps) 36.3 (2.3) 42.4 (2.7) 58.1 (3.7) 73.2 (4.6)

Unit Pressure Drop, ft of Water (kPa)

Heat Rejection, kW (BTUH)

14.6 (43.7) 19.5 (58.3) 19.8 (59.2) 30.7 (91.8)

47.7

(163,000)

5,200

(8,835)

55.6

(190,000)

6,200

(10,534)

76.3

(260,000)

8,000

(13,592)

96.1

(328,000)

9,600

(16,310)

11,000

(18,689)

13,700

(23,276)

Standard Fan Motor, hp (kW) 3.75 (2.8) 3.75 (2.8) 4.15 (3.1) 4.15 (3.1) 4.15 (3.1) 3.6 (2.7)

Number of Fans 1 1 2 2 2 3

External Static Pressure, in.w.g. (Pa) 0.2 (50)

1,2

0.2 (50)

1,2

0.2 (50)

1,2

0.2 (50)

1,2

0.2 (50)

1,2

0.2 (50)

1. Certified in accordance with the AHRI Datacom Cooling Certification Program at AHRI Standard 1360 (I-P) Standard Rating Conditions. Certified units may be found in the AHRI Directory at www.ahridirectory.org.

2. Certified in accordance with the ASHRAE Standard 127-2007 Standard Rating Conditions. Certified units may be found in the Compliance Certification Database at www.regulations.doe.gov.

3. Some options or combinations of options may result in reduced air flow. Consult factory for recommendations.

4. Net capacity data has fan motor heat factored in for all ratings.

5. Consult factory for alternate performance outputs. Performance data generated in LRS Update Version 06-22-2022.

6. See Table 2.13 on page37 for Optional Dual Cool Performance.

1,2

18

2 System Data

Vertiv™ Liebert® DS System Design Catalog

Table 2.6 Water Cooled Data for Upflow with EC Fan(s) 60 Hz Models

Model Size - Upflow VS035 VS042 VS053 VS070 VS077 VS105

Liebert® DX Evaporator - Net Capacity Data with 83°F Entering and 95°F Leaving Fresh Water Temperatures

Compressor Type Digital Scroll

85°F DB1, 64.4°F WB, 52°F DP, 32%RH (29.4°C DB, 18°C WB)

80°F DB, 62.7°F WB, 52°F DP, 38%RH (26.7°C DB, 17.1°C WB)

Total, kW (BTUH)

Sensible, kW (BTUH)

Flow Rate, GPM (lps)

Unit Pressure Drop, ft of Water (kPa)

Heat Rejection, kW (BTUH)

External Static Pressure, in.w.g. (Pa)

Total, kW (BTUH)

Sensible, kW (BTUH)

Flow Rate, GPM (lps)

Unit Pressure Drop, ft of Water (kPa)

43.0

(147,000)

43.0

(147,000)

31.6 (2.0) 35.5 (2.2) 46.7 (2.9) 58.3 (3.7) 64.3 (4.1) 78.1 (4.9)

11.2 (33.5) 14.0 (41.9) 13.1 (39.2) 19.9 (59.5) 23.9 (71.5) 30.7 (91.8)

55.3

(189,000)

0.41(100) 0.41(100) 0.41(100) 0.51(125) 0.51(125) 0.51(125)

40.7

(139,000)

39.1

(133,000)

30.2 (1.9) 34.0 (2.1) 44.9 (2.8) 56.3 (3.5) 62.0 (3.9) 75.4 (4.8)

10.3 (30.8) 12.8 (38.3) 12.1 (36.2) 18.6 (55.6) 22.3 (66.7) 28.6 (85.5)

48.3

(165,000)

48.3

(165,000)

62.2

(212,000)

45.6

(156,000)

44.3

(151,000)

66.2

(226,000)

64.6

(220,000)

81.9

(279,000)

62.8

(214,000)

58.8

(201,000)

1

80.3

(274,000)

77.2

(263,000)

102.1

(348,000)

76.9

(262,000)

70.2

(240,000)

Semi-hermetic (Four Step

Cooling)

86.6

(295,000)

83.9

(286,000)

112.7

(385,000)

82.7

(282,000)

76.2

(260,000)

104.9

(358,000)

100.9

(344,000)

136.9

(467,000)

100.3

(342,000)

92.3

(315,000)

75°F DB, 61°F WB, 52°F DP, 44%RH (23.9°C DB, 16.1°C WB)

Heat Rejection, kW (BTUH)

External Static Pressure, in.w.g. (Pa)

Total, kW (BTUH)

Sensible, kW (BTUH)

Flow Rate, GPM (lps)

Unit Pressure Drop, ft of Water (kPa)

Heat Rejection, kW (BTUH)

External Static Pressure, in.w.g. (Pa)

52.8

(180,000)

59.5

(203,000)

78.7

(269,000)

98.6

(336,000)

0.5 (125) 0.5 (125) 0.5 (125) 0.5 (125) 0.5 (125) 0.5 (125)

38.2

(130,000)

34.2

(117,000)

42.9

(146,000)

38.8

(132,000)

59.1

(202,000)

51.6

(176,000)

72.7

(248,000)

61.6

(210,000)

29.0 (1.8) 32.6 (2.1) 43.3 (2.7) 54.4 (3.4) 59.4 (3.7)

9.5 (28.4) 11.9 (35.6) 11.3 (33.8) 17.4 (52.0) 21.0 (62.8)2a27.0 (80.7)

50.8

(173,000)

57.2

(195,000)

75.8

(259,000)

95.3

(325,000)

1.0 (250) 1.0 (250) 1.0 (250) 1.0 (250) 1.0 (250) 1.0 (250)

Compressor Type Scroll (Two Step Cooling)

85°F DB1, 64.4°F WB, 52°F DP, 32%RH (29.4°C DB, 18°C WB)

Total, kW (BTUH)

41.6

(142,000)

48.5

(165,000)

66.3

(226,000)

80.9

(276,000)

108.6

(371,000)

78.0

(266,000)

65.6

(224,000)

104.1

(355,000)

2a

132.1

(451,000)

94.6

(323,000)

80.3

(274,000)

72.4 (4.6)

126.8

(433,000)

2a

2 System Data

19

Vertiv™ Liebert® DS System Design Catalog

Table 2.6 Water Cooled Data for Upflow with EC Fan(s) 60 Hz Models (continued)

Model Size - Upflow VS035 VS042 VS053 VS070 VS077 VS105

80°F DB, 62.7°F WB, 52°F DP, 38%RH (26.7°C DB, 17.1°C WB)

Sensible, kW (BTUH)

Flow Rate, GPM (lps)

Unit Pressure Drop, ft of Water (kPa)

Heat Rejection, kW (BTUH)

External Static Pressure, in.w.g. (Pa)

Total, kW (BTUH)

Sensible, kW (BTUH)

Flow Rate, GPM (lps)

Unit Pressure Drop, ft of Water (kPa)

Heat Rejection, kW (BTUH)

External Static Pressure, in.w.g. (Pa)

41.6

(142,000)

30.0 (1.9) 34.9 (2.2) 46.8 (2.9) 58.7 (3.7)

10.1 (30.2) 13.5 (40.4) 13.1 (39.2) 20.1 (60.1)

52.5

(179,000)

0.41(100) 0.41(100) 0.41(100) 0.51(125)

39.3

(134,000)

38.3

(131,000)

28.7 (1.8) 33.4 (2.1) 45.2 (2.8) 56.8 (3.6)

9.3 (27.8) 12.4 (37.1) 12.3 (36.8) 18.9 (56.5)

50.2

(171,000)

0.5 (125) 0.5 (125) 0.5 (125) 0.5 (125)

48.5

(165,000)

61.1

(208,000)

45.9

(157,000)

44.5

(152,000)

58.6

(200,000)

64.7

(221,000)

82.0

(280,000)

63.2

(216,000)

59.0

(201,000)

79.1

(270,000)

77.5

(264,000)

102.8

(351,000)

77.6

(265,000)

70.6

(241,000)

99.5

(340,000)

75°F DB, 61°F WB, 52°F DP, 44%RH (23.9°C DB, 16.1°C WB)

FAN SECTION - EC Up

Return Air Volume, ACFM (ACMH)

Total, kW (BTUH)

Sensible, kW (BTUH)

Flow Rate, GPM (lps)

Unit Pressure Drop, ft of Water (kPa)

Heat Rejection, kW (BTUH)

External Static Pressure, in.w.g. (Pa)

36.9

(126,000)

33.6

(115,000)

27.6 (1.7) 32.2 (2.0) 43.7 (2.8) 55.0 (3.5)

8.6 (25.7) 11.6 (34.7) 11.5 (34.4) 17.8 (53.2)

48.3

(165,000)

1.0 (250) 1.0 (250) 1.0 (250) 1.0 (250)

5,200

(8,835)

43.2

(147,000)

39.0

(133,000)

56.5

(193,000)

6,200

(10,534)

59.7

(204,000)

51.9

(177,000)

76.5

(261,000)

8,000

(13,592)

73.7

(251,000)

62.0

(212,000)

96.4

(329,000)

9,600

(16,310)

11,000

(18,689)

13,700

(23,276)

20

2 System Data

Vertiv™ Liebert® DS System Design Catalog

Table 2.6 Water Cooled Data for Upflow with EC Fan(s) 60 Hz Models (continued)

Model Size - Upflow VS035 VS042 VS053 VS070 VS077 VS105

Standard Fan Motor, hp (kW) 3.75 (2.8) 3.75 (2.8) 4.15 (3.1) 4.15 (3.1) 4.15 (3.1) 3.6 (2.7)

Number of Fans 1 1 2 2 2 3

1. Certified in accordance with the AHRI Datacom Cooling Certification Program at AHRI Standard 1360 (I-P) Standard Rating Conditions. Certified units may be found in the AHRI Directory at www.ahridirectory.org.

2. Certified in accordance with the ASHRAE Standard 127-2007 Standard Rating Conditions. Certified units may be found in the Compliance Certification Database at www.regulations.doe.gov. 2a. Performance data derived from Return ACFM required to be listed in Compliance Certification Database (VS077=10,400; VS105=13,200).

3. Some options or combinations of options may result in reduced air flow. Consult factory for recommendations.

4. Net capacity data has fan motor heat factored in for all ratings.

5. Consult factory for alternate performance outputs. Performance data generated in LRS Update Version 06-22-2022.

6. See Table 2.14 on page39 for Optional Dual Cool Performance.

2 System Data

21

Vertiv™ Liebert® DS System Design Catalog

Table 2.7 Water Cooled Data for Upflow with EC Fan(s), 60 Hz Models

Model Size - Upflow VS035 VS042 VS053 VS070 VS077 VS105

Liebert® DX Evaporator - Net Capacity Data with 86°F Entering and 95°F Leaving Fresh Water Temperatures

Compressor Type Digital Scroll

85°F DB, 64.4°F WB, 52°F DP, 32%RH (29.4°C DB, 18°C WB)

8O°F DB, 62.7°F WB, 52°F DP, 38%RH (26.7°C DB, 17.1°C WB)

Total, kW (BTUH)

Sensible, kW (BTUH)

Flow Rate, GPM (lps)

Unit Pressure Drop, ft of Water (kPa)

Heat Rejection, kW (BTUH)

External Static Pressure, in.w.g. (Pa)

Total, kW (BTUH)

Sensible, kW (BTUH)

Flow Rate, GPM (lps)

Unit Pressure Drop, ft of Water (kPa)

42.7

(146,000)

42.7

(146,000)

42.0 (2.6) 47.3 (3.0) 62.2 (3.9) 77.6 (4.9) 85.5 (5.4) 1103.9 (6.5)

19.3 (57.7) 24.2 (72.4) 22.6 (67.6) 34.4 (102.9) 41.2 (123.2) 52.6 (157.3)

55.1

(188,000)

0.4 (100) 0.4 (100) 0.4 (100) 0.5 (125) 0.5 (125) 0.5 (125)

40.4

(138,000)

38.9

(133,000)

40.1 (2.5) 45.1 (2.8) 59.7 (3.8) 74.9 (4.7) 82.4 (5.2) 100.2 (6.3)

17.7 (52.9) 22.1 (66.1) 20.9 (62.5) 32.1 (96.0) 38.3 (114.5) 49.1 (146.8)

48.0

(164,000)

48.0

(164,000)

62.0

(212,000)

45.2

(154,000)

44.1

(150,000)

65.7

(224,000)

64.3

(219,000)

81.6

(278,000)

62.3

(213,000)

58.5

(200,000)

2

79.6

(272,000)

76.8

(262,000)

101.8

(347,000)

76.2

(260,000)

69.8

(238,000)

Semi-hermetic (Four Step

Cooling)

85.8

(293,000)

83.4

(285,000)

112.3

(383,000)

81.8

(279,000)

75.8

(259,000)

103.9

(355,000)

100.3

(342,000)

136.4

(465,000)

99.3

(339,000)

91.7

(313,000)

75°F DB2, 61°F WB, 52°F DP, 44%RH (23.9°C DB, 16.1°C WB)

Heat Rejection, kW (BTUH)

External Static Pressure, in.w.g. (Pa)

Total, kW (BTUH)

Sensible, kW (BTUH)

Flow Rate, GPM (lps)

Unit Pressure Drop, ft of Water (kPa)

Heat Rejection, kW (BTUH)

External Static Pressure, in.w.g. (Pa)

52.7

(180,000)

59.3

(202,000)

78.5

(268,000)

98.3

(335,000)

0.5 (125) 0.5 (125) 0.5 (125) 0.5 (125) 0.5 (125) 0.5 (125)

37.9

(129,000)

34.1

(116,000)

42.5

(145,000)

38.6

(132,000)

58.6

(200,000)

51.3

(175,000)

72.0

(246,000)

61.3

(209,000)

38.5 (2.4) 43.4 (2.7) 57.6 (3.6) 72.4 (4.6) 78.9 (5.0)2a96.2 (6.1)

16.4 (49.0) 20.5 (61.3) 19.5 (58.3) 30.1 (90.0)

50.6

(173,000)

57.0

(194,000)

75.6

(258,000)

95.0

(324,000)

1.02(250) 1.02(250) 1.02(250) 1.02(250) 1.02(250) 1.02(250)

Compressor Type Scroll (Two Step Cooling)

85°F DB, 64.4°F WB, 52°F DP, 32%RH (29.4°C DB, 18°C WB)

Total, kW (BTUH)

41.4

(141,000)

48.2

(164,000)

65.8

(225,000)

80.2

(274,000)

108.2

(369,000)

77.2

(263,000)

65.2

(222,000)

35.0

(104.7)

103.5

(353,000)

131.5

(449,000)

93.6

2a

(319,000)

2a

79.8

2a

(272,000)

2a

45.0

2a

(134.6)

2a

126.2

2a

(431,000)

2a

22

2 System Data

Vertiv™ Liebert® DS System Design Catalog

Table 2.7 Water Cooled Data for Upflow with EC Fan(s), 60 Hz Models (continued)

Model Size - Upflow VS035 VS042 VS053 VS070 VS077 VS105

80°F DB, 62.7°F WB, 52°F DP, 38%RH (26.7°C DB, 17.1°C WB)

Sensible, kW (BTUH)

Flow Rate, GPM (lps)

Unit Pressure Drop, ft of Water (kPa)

Heat Rejection, kW (BTUH)

External Static Pressure, in.w.g. (Pa)

Total, kW (BTUH)

Sensible, kW (BTUH)

Flow Rate, GPM (lps)

Unit Pressure Drop, ft of Water (kPa)

Heat Rejection, kW (BTUH)

External Static Pressure, in.w.g. (Pa)

41.4

(141,000)

39.9 (2.5) 46.4 (2.9) 62.3 (3.9) 78.1 (4.9)

17.5 (52.3) 23.3 (69.7) 22.7 (67.9) 34.9 (104.4)

52.4

(179,000)

0.4 (100) 0.4 (100) 0.4 (100) 0.5 (125)

39.1

(133,000)

38.1

(130,000)

38.2 (2.4) 44.5 (2.8) 60.1 (3.8) 75.5 (4.8)

16.1 (48.1) 21.5 (64.3) 21.1 (63.1) 32.7 (97.8)

50.1

(171,000)

0.5 (125) 0.5 (125) 0.5 (125) 0.5 (125)

48.2

(164,000)

61.0

(208,000)

45.5

(155,000)

44.3

(151,000)

58.4

(199,000)

64.3

(219,000)

81.8

(279,000)

62.7

(214,000)

58.7

(200,000)

78.9

(269,000)

77.2

(263,000)

102.5

(350,000)

77.0

(263,000)

70.3

(240,000)

99.2

(338,000)

75°F D82, 61°F WB, 52°F DP, 44%RH (23.9°C DB, 16.1°C WB)

FANSECTION - EC Up

Return Air Volume, ACFM (ACMH)

Total, kW (BTUH)

Sensible, kW (BTUH)

Flow Rate, GPM (lps)

Unit Pressure Drop, ft of Water (kPa)

Heat Rejection, kW (BTUH)

External Static Pressure, in.w.g. (Pa)

36.7

(125,000)

33.5

(114,000)

36.7 (2.3) 42.9 (2.7) 58.1 (3.7) 73.2 (4.6)

14.9 (44.6) 20.0 (59.8) 19.8 (59.2) 30.7 (91.8)

48.2

(164,000)

1.02(250) 1.02(250) 1.02(250) 1.02(250)

5,200

(8,835)

42.8

(146,000)

38.8

(132,000)

56.3

(192,000)

6,200

(10,534)

59.2

(202,000)

51.6

(176,000)

76.2

(260,000)

8,000

(13,592)

73.0

(249,000)

61.7

(211,000)

96.1

(328,000)

9,600

(16,310)

11,000

(18,689)

13,700

(23,276)

2 System Data

23

Vertiv™ Liebert® DS System Design Catalog

Table 2.7 Water Cooled Data for Upflow with EC Fan(s), 60 Hz Models (continued)

Model Size - Upflow VS035 VS042 VS053 VS070 VS077 VS105

Standard Fan Motor, hp (kW) 3.75 (2.8) 3.75 (2.8) 4.15 (3.1) 4.15 (3.1) 4.15 (3.1) 3.6 (2.7)

Number of Fans 1 1 2 2 2 3

1. Certified in accordance with the AHRI Datacom Cooling Certification Program at AHRI Standard 1360 (I-P) Standard Rating Conditions. Certified units may be found in the AHRI Directory at www.ahridirectory.org.

2. Certified in accordance with the ASHRAE Standard 127-2007 Standard Rating Conditions. Certified units may be found in the Compliance Certification Database at www.regulations.doe.gov. 2a. Performance data derived from Return ACFM required to be listed in Compliance Certification Database. (VS077=10,400; VS105=13,200)

3. Some options or combinations of options may result in reduced air flow. Consult factory for recommendations.

4. Net capacity data has fan motor heat factored in for aII ratings.

5. Consult factory for alternate performance outputs. Performance data generated in LRS Update Version 06-22-2022.

6. See Table 2.14 on page39 for Optional Dual Cool Performance.

24

2 System Data

Vertiv™ Liebert® DS System Design Catalog

Table 2.8 Water Cooled Data for Upflow (Forward Curved) Fan(s), 60 Hz Models

Model Size - Upflow VS035 VS042 VS053 VS070 VS077 VS105

Liebert® DX Evaporator - Net Capacity Data with 83°F Entering 95°F Leaving Fresh Water Temperatures

Compressor Type Digital Scroll

85°F DB1, 64.4°F WB, 52°F DP, 32%RH (29.4°C DB, 18°C WB)

8O°F DB, 62.7°F WB, 52°F DP, 38%RH (26.7°C DB, 17.1°C WB)

Total, kW (BTUH)

Sensible, kW (BTUH)

Flow Rate, GPM (lps)

Unit Pressure Drop, ft of Water (kPa)

Heat Rejection, kW (BTUH)

External Static Pressure, in.w.g. (Pa)

Total, kW (BTUH)

Sensible, kW (BTUH)

Flow Rate, GPM (lps)

Unit Pressure Drop, ft of Water (kPa)

42.8

(146,000)

42.8

(146,000)

32.0 (2.0) 36.1 (2.3) 46.7 (2.9) 58.3 (3.7) 64.3 (4.1) 79.1 (5.0)

11.5 (34.4) 14.4 (43.1) 13.1 (39.2) 19.9 (59.5) 23.9 (71.5) 31.4 (93.9)

56.1

(191,000)

0.41(100) 0.41(100) 0.41(100) 0.51(125) 0.51(125) 0.51(125)

40.2

(137,000)

39.2

(134,000)

30.5 (1.9) 34.3 (2.2) 44.9 (2.8) 56.3 (3.5) 62.0 (3.9) 76.2 (4.8)

10.5 (31.4) 13.1 (39.2) 12.1 (36.2) 18.6 (55.6) 22.3 (66.7) 29.3 (87.6)

47.5

(162,000)

47.5

(162,000)

63.2

(216,000)

44.6

(152,000)

43.9

(150,000)

(225,000)

(220,000)

(279,000)

(214,000)

(200,000)

66.0

64.5

81.9

62.7

58.6

80.0

(273,000)

76.9

(262,000)

102.1

(348,000)

76.6

(261,000)

69.9

(239,000)

Semi-hermetic (Four Step

Cooling)

86.2

(294,000)

83.5

(285,000)

112.7

(385,000)

82.2

(280,000)

75.8

(259,000)

104.9

(358,000)

102.1

(348,000)

138.6

(473,000)

100.1

(342,000)

93.5

(319,000)

75°F DB, 61 °F WB, 52°F DP, 44%RH (23.9°C DB, 16.1°C WB)

Heat Rejection, kW (BTUH)

External Static Pressure, in.w.g. (Pa)

Total, kW (BTUH)

Sensible, kW (BTUH)

Flow Rate, GPM (lps)

Unit Pressure Drop, ft of Water (kPa)

Heat Rejection, kW (BTUH)

External Static Pressure, in.w.g. (Pa)

53.4

(182,000)

60.2

(205,000)

78.7

(269,000)

98.6

(336,000)

0.5 (125) 0.5 (125) 0.5 (125) 0.5 (125) 0.5 (125) 0.5 (125)

37.6

(128,000)

34.3

(117,000)

29.2 (1.8) 32.8 (2.1)

9.7 (2.9.0) 12.0 (35.9)

51.2

(175,000)

41.8

(143,000)

38.1

(130,000)

57.5

(196,000)

59.0

2a

(201,000)

51.4

2a

(175,000)

2a

43.3 (2.7) 54.4 (3.4) 59.7 (3.8)

2a

11.3 (33.8) 17.4 (52.0) 21.0 (62.8)2a27.0 (80.7)

75.8

2a

(259,000)

72.4

(247,000)

61.3

(209,000)

95.3

(325,000)

1.0 (250) 1.0 (250) 1.0 (250) 1.0 (250) 1.0 (250) 1.0 (250)

Compressor Type Scroll (Two Step Cooling)

85°F DB1, 64.4°F WB, 52°F DP, 32%RH (29.4°C DB, 18°C WB)

Total, kW (BTUH)

41.3

(141,000)

47.7

(163,000)

66.1

(226,000)

80.6

(275,000)

108.6

(371,000)

77.6

(265,000)

65.9

(225,000)

104.6

(357,000)

2a

133.5

(456,000)

94.3

(322,000)

81.9

(279,000)

73.4 (4.6)

128.5

(438,000)

2a

2 System Data

25

Vertiv™ Liebert® DS System Design Catalog

Table 2.8 Water Cooled Data for Upflow (Forward Curved) Fan(s), 60 Hz Models (continued)

Model Size - Upflow VS035 VS042 VS053 VS070 VS077 VS105

80°F DB, 62.7°F WB, 52°F DP, 38%RH (26.7°C DB, 17.1°C WB)

Sensible, kW (BTUH)

Flow Rate, GPM (lps)

Unit Pressure Drop, ft of Water (kPa)

Heat Rejection, kW (BTUH)

External Static Pressure, in.w.g. (Pa)

Total, kW (BTUH)

Sensible, kW (BTUH)

Flow Rate, GPM (lps)

Unit Pressure Drop, ft of Water (kPa)

Heat Rejection, kW (BTUH)

External Static Pressure, in.w.g. (Pa)

41.3

(141,000)

30.4 (1.9) 35.4 (2.2) 46.8 (2.9) 58.7 (3.7)

10.4 (31.1) 13.9 (41.6) 13.1 (39.2) 20.1 (60.1)

53.2

(182,000)

0.41(100) 0.41(100) 0.41(100) 0.51(125)

38.8

(132,000)

38.3

(131,000)

29.0 (1.8) 33.8 (2.1) 45.2 (2.8) 56.8 (3.6)

9.5 (28.4) 12.7 (38.0) 12.3 (36.8) 18.9 (56.5)

50.7

(173,000)

0.5 (125) 0.5 (125) 0.5 (125) 0.5 (125)

47.7

(163,000)

62.0

(212,000)

44.8

(153,000)

44.1

(150,000)

59.2

(202,000)

64.5

(220,000)

82.0

(280,000)

63.0

(215,000)

58.8

(201,000)

79.1

(270,000)

77.3

(264,000)

102.8

(351,000)

77.4

(264,000)

70.3

(240,000)

99.5

(340,000)

Total, kW (BTUH)

Sensible, kW (BTUH)

Flow Rate, GPM

75°F DB, 61°F WB, 52°F DP, 44%RH (23.9°C DB, 16.1°C WB)

FAN SECTION - Centrifugal (Forward Curved)

Return Air Volume ACFM (ACMH)

Standard Fan Motor, hp (kW) 3.0 (2.2.) 5.0 (3.7) 3.0 (2.2.) 5.0 (3.7) 7.5 (5.6) 10.0 (7.5)

(lps)

Unit Pressure Drop, ft of Water (kPa)

Heat Rejection, kW (BTUH)

External Static Pressure, in.w.g. (Pa)

36.3

(124,000)

33.6

(115,000)

27.8 (1.8) 32.5 (2.0) 43.7 (2.8) 55.0 (3.5)

8.8 (26.3) 12.0 (35.9) 11.5 (34.4) 17.8 (53.2)

48.7

(166,000)

1.0 (250) 1.0 (250) 1.0 (250) 1.0 (250)

5,500

(9,345)

42.0

(143,000)

38.6

(132,000)

57.0

(194,000)

6,600

(11,213)

59.5

(203,000)

51.7

(176,000)

76.5

(261,000)

8,000

(13,592)

73.4

(250,000)

61.8

(211,000)

96.4

(329,000)

9,600

(16,310)

11,000

(18,689)

14,600

(24,805)

26

2 System Data

Vertiv liebert-ds User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual