Emerson Liebert DS 28-105kW Technical Specifications

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Liebert® DS™ Thermal Management Unit

System Design Manual - 28-105kW (8-30 Tons), Downflow/Upflow, 60Hz Floor Mounted, Air-Cooled, Water/Glycol-Cooled, GLYCOOL Economizer Coil, Dual-Cool DX with

Secondary Chilled Water Coil

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TABLE OF CONTENTS

LIEBERT DS MODEL NUMBER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1.0 COOLING CONFIGURATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

2.0 BLOWER CONFIGURATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

3.0 AIR-COOLED SYSTEMS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

3.1 Capacity and Physical Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3.2 Standard Electrical Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3.3 Optional Electrical Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

3.4 Optional Low-Voltage Terminal Package Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

3.5 Dimensions—Liebert DS 028-042, Downflow, Air-Cooled Models . . . . . . . . . . . . . . . . . . . . 16

3.6 Dimensions—Liebert DS 053-077, Downflow, Air-Cooled Models . . . . . . . . . . . . . . . . . . . . 23

3.7 Dimensions—Liebert DS 105, Downflow, Air-Cooled Models . . . . . . . . . . . . . . . . . . . . . . . . 32

3.8 Dimensions—Liebert DS 028-042, Upflow, Air-Cooled Models. . . . . . . . . . . . . . . . . . . . . . . 38

3.9 Dimensions—Liebert DS 053-077, Upflow, Air-Cooled Models. . . . . . . . . . . . . . . . . . . . . . . 45

3.10 Dimensions—Liebert DS 105, Upflow, Air-Cooled Models . . . . . . . . . . . . . . . . . . . . . . . . . . 52

3.11 Heat Rejection—Liebert MC, Fin/Tube and Piggyback Condensers. . . . . . . . . . . . . . . . . . . 57

3.11.1 Liebert MC Microchannel Condensers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

3.12 Piping—Liebert MC™ Condensers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

3.12.1 Fin/Tube Condensers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

3.12.2 Piggyback Condensers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78

3.13 Ancillary Items—Air-Cooled Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

4.0 WATER-COOLED, GLYCOL-COOLED AND GLYCOOL SYSTEMS . . . . . . . . . . . . . . . . . . . . .91

4.1 Capacity and Physical Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

4.2 Standard Electrical Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

4.3 Optional Electrical Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106

4.4 Optional Low-Voltage Terminal Package Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106

4.5 Dimensions—Liebert DS 028-042, Downflow, Water/Glycol/GLYCOOL Models . . . . . . . . 107

4.6 Dimensions—Liebert DS 053-077, Downflow, Water/Glycol/GLYCOOL Models . . . . . . . . 111

4.7 Dimensions—Liebert DS 105, Downflow, Water/Glycol/GLYCOOL-Cooled Models . . . . . 116

4.8 Dimensions—Liebert DS 028-042, Upflow, Water/Glycol/GLYCOOL-Cooled Models . . . . 121

4.9 Dimensions—Liebert DS 053-077, Upflow, Water/Glycol/GLYCOOL-Cooled Models . . . . 125

4.10 Dimensions—Liebert DS 105, Upflow, Water/Glycol/GLYCOOL Models. . . . . . . . . . . . . . 129

4.11 Heat Rejection—Drycoolers and Pumps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133

4.11.1 Drycooler Selection—Prop Fan Drycoolers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133

4.11.2 Dimensions—Prop Fan Drycoolers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133

4.11.3 Electrical Data—Prop Fan Drycoolers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136

4.11.4 Piping—Prop Fan Drycoolers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138

4.11.5 Pump Packages & Expansion Tank. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143

4.11.6 Drycooler Selection—Indoor Piggyback Drycoolers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147

4.11.7 Weights and Dimensions—Indoor Piggyback Drycoolers . . . . . . . . . . . . . . . . . . . . . . . . . . . 147

4.11.8 Electrical Data—Piggyback Drycoolers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148

4.11.9 System Piping—Piggyback Drycoolers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150

4.12 Ancillary Items—Water-Cooled Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152

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5.0 GUIDE SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .157

1.0 GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157

2.0 PRODUCT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157

3.0 EXECUTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169

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LIEBERT DS MODEL NUMBER

Cooling Type

A = Air-Cooled D = Dual-Cooling, Air-Cooled W = Water/Glycol K = GLYCOOL (Liebert Economizer Coil) H = Dual-Cooling, Water-Cooled

Nominal kW

028, 035, 042, 053, 070, 077, 105

(8, 10, 12, 15, 20, 22, 30 tons)

Air Distribution

DS = Downflow Standard VS = Upflow Standard

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

DS035AUA0EI****

Compressor

U - Semi-Hermetic with Four-Step, R-407C S - Scroll, R-407C D - Digital Scroll, R-407C

Fan Type

0 = Centrifugal Fans 1 = Electronically

Commutated (EC) Fans

Humidification

0 - None I - Infrared S - Steam Generating

Canister

Reheat Type

0 - None E - 3-Stage Electric S - SCR

Voltag e

A - 460/3/60 B - 575/3/60 C - 208/3/60 D - 230/3/60 2 - 380/3/60

Factory Configuration Number

Liebert DS Model Number

Not all combinations of options are available on all units.

Digital Scroll Compressors

• Not available on 077 and 105 models

• Not compatible with SCR reheat because digital scroll provides variable capacity control

EC Fans, Direct-Drive

• Not available on upflow (VS) configuration

• Liebert Econ-O-Coil

Steam Generating Canister Humidifier

• Not available on upflow (VS) configurations

• Not available on EC fan configurations

575 Volt Option Limitations

• Digital scroll compressors available only on 053, 070 models

GLYCOOL Liebert Economizer Models

• 105 model requires semi-hermetic compressors only, so as to prevent potential coil freezing

Turning Vanes

• Not available on floor stands 6" (152.4mm) tall

• Not available or required on units with EC fans

™

not available on 028, 035, 042 models with 208/230V

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1.0 COOLING CONFIGURATIONS

AIR-COOLED Air-cooled unit piping is spun closed from the factory and contains a nitrogen holding charge. Each installation requires field-supplied refrigerant and piping to a condenser.

GLYCOL-COOLED Glycol-cooled units are factory-charged and tested. Field-supplied and field-installed piping is required from the unit to the drycooler and pump package.

WATER-COOLED Water-cooled units are factory-charged and tested. Field-supplied and field-installed water piping is required from the unit to the cooling tower.

GLYCOOL-INTEGRATED FLUID ECONOMIZER GLYCOOL units are factory-charged and tested. Field-supplied and field-installed piping is required from the unit to the 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.

DUAL-COOL This 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.

NOTE

All field-installed piping must comply with applicable local, state and federal codes.

Cooling Configurations

Liebert® DS

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2.0 BLOWER CONFIGURATIONS

Front

Filter

Coil

Blower

Raised

Floor

Return Air

Supply

Air

Front Supply, EC Fans

Front

Filter

Coil

Blower

Raised

Floor

Return Air

Supply

Air

Rear Supply, EC Fans

Applicable to installations

without raised floors

Applicable to installations

without raised floors

Front

Filter

Coil

Blower

Floor

Stand

(optional )

Raised

Floor

Return Air

Supply

Air

Front

Filter

Coil

Blower

Floor Stand

(optional )

Raised

Floor

Return Air

Supply Air

Under-Floor Supply, EC Fans

Bottom Supply, EC Fans

Figure 1 Blower configurations—Downflow, front and rear supply models, EC fans

Blower Configurations

Figure 2 Blower configurations—Downflow, bottom supply and under-floor supply models, EC fans

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Blower Configurations

Front

Filter

Coil

Blower

Floor

Stand

(optional )

Raised

Floor

Return Air

Supply Air

Turning Vane (optional )

Front Supply, Forward-Curved Fans

Front

Filter

Coil

Blower

Floor

Stand

(optional )

Raised

Floor

Return Air

Supply Air

Turning Vane (optional )

Rear Supply, Forward-Curved Fans

Figure 3 Blower configurations—Downflow, front and rear supply models, centrifugal fans

Liebert® DS

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Figure 4 Blower configurations—Upflow, front return models, centrifugal fans

Front

Coil

Return

Air

Supply Air

Blow er

Filter

Front

Coil

Return

Air

Supply Air

Blow er

Filter

Top Supply, Front Throw Forward-Curved Fans Top Supply, Rear Throw Forward-Curved Fans

Front

Coil

Supply Air

Blower

Filter

Return

Air

Ductwork

Front

Coil

Supply Air

Blower

Filter

Return

Air

Ductwork

Top Supply, Rear Throw, Forward-Curved FansTop Supply, Front Throw, Forward-Curved Fans

Blower Configurations

Figure 5 Blower configurations—Upflow, rear return models, centrifugal fans

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Air-Cooled Systems

3.0 AIR-COOLED SYSTEMS

3.1 CAPACITY AND PHYSICAL DATA

Table 1 Performance Data—Air-cooled, EC fan, under-floor discharge

Model Size 028 035 042 053 070 077 105

CAPACITY DATA with EC Fans

Net Capacity Data kW (BTUH), Standard Air Volume and Evaporator Fan Motor

Semi Hermetic Compressors with EC Fans

85°F DB, 64.5°F WB, 52.3°F DP (29.4°C DB, 18.1°C WB) 32.4% RH

Total kW (kBTUH) 34.1 (116.4) 42.1 (143.6) 47.9 (163.6) 61.7 (210.6) 72.4 (247.1) 79.2 (270.3) 103.3 (352.5)

Sensible kW

(kBTUH)

80°F DB, 62.9°F WB, 52.3°F DP (26.7°C DB, 17.1°C WB) 38.2% RH

Total kW (kBTUH) 32.4 (110.5) 40.1 (136.8) 45.7 (156.1) 58.3 (198.9) 68.8 (234.8) 75.3 (257.1) 99.1 (338.2)

Sensible kW

(kBTUH)

75°F DB, 61.1°F WB, 52.3°F DP (23.9°C DB, 16.2°C WB) 45.1% RH

Total kW (kBTUH) 30.9 (105.3) 38.3 (130.8) 43.8 (149.5) 55.4 (189) 65.6 (223.9) 72 (245.8) 95.2 (325)

Sensible kW

(kBTUH)

72°F DB, 60.0°F WB, 52.3°F DP (22.2°C DB, 15.6°C WB) 49.9% RH

Total kW (kBTUH) 30 (102.5) 37.3 (127.4) 42.7 (145.8) 53.8 (183.6) 63.9 (218) 70.2 (239.7) 93.1 (317.6)

Sensible kW

(kBTUH)

Net Capacity Data kW (BTUH), Standard Air Volume and Evaporator Fan Motor

Scroll or Digital Scroll Compressors with EC Fans

85°F DB, 64.5°F WB, 52.3°F DP (29.4°C DB, 18.1°C WB) 32.4% RH

Total kW (kBTUH) 35.4 (120.8) 40.2 (137.1) 45.5 (155.3) 63.5 (216.8) 75.8 (258.6) 81.3 (277.6) 103.6 (353.7)

Sensible kW

(kBTUH)

80°F DB, 62.9°F WB, 52.3°F DP (26.7°C DB, 17.1°C WB) 38.2% RH

Total kW (kBTUH) 33.4 (113.9) 38.2 (130.4) 43.4 (148.1) 60.5 (206.5) 72.7 (248) 77.9 (265.8) 99.7 (340.2)

Sensible kW

(kBTUH)

75°F DB, 61.1°F WB, 52.3°F DP (23.9°C DB, 16.2°C WB) 45.1% RH

Total kW (kBTUH) 31.6 (107.8) 36.5 (124.7) 41.6 (141.9) 57.8 (197.4) 69.9 (238.4) 74.9 (255.5) 96 (327.8)

Sensible kW

(kBTUH)

72°F DB, 60.0°F WB, 52.3°F DP (22.2°C DB, 15.6°C WB) 49.9% RH

Total kW (kBTUH) 30.6 (104.3) 35.6 (121.5) 40.6 (138.5) 56.4 (192.6) 68.3 (233) 73.2 (249.9) 93.8 (320.3)

Sensible kW

(kBTUH)

Standard Air

Volume,

CFM (CMH)

0.2" External Static

Standard Fan

Motor,

Nominal kW

(total for all fans)

Number of Fans 1 1 1 2 2 2 3

1. Capacity data is rated and factory-certified per ASHRAE 127-2012 with a 5% tolerance.

2. Some options or combinations of options may result in reduced air flow—consult factory for recommendations.

3. Digital scroll not available on 077 and 105 models; units available with semi-hermetic and standard scroll compressors only.

34 (116) 41.4 (141.2) 47.9 (160.9) 61.6 (210.2) 72 (245.9) 78.9 (269.2) 98.9 (337.5)

31 (105.9) 37.5 (128.1) 45.7 (146.2) 56.8 (193.9) 66.4 (226.6) 72.9 (248.8) 90 (307.2)

27.5 (93.9) 33.3 (113.8) 43.8 (129.9) 50.8 (173.3) 59 (201.3) 64.9 (221.5) 80 (273.1)

25.3 (86.3) 30.7 (104.8) 42.7 (119.7) 46.7 (159.3) 54.2 (184.9) 59.7 (203.6) 73.8 (251.8)

Scroll Compressors Only

35.2 (120) 40 (136.4) 45.3 (154.7) 63.2 (215.7) 74.9 (255.6) 80.6 (275.1) 99.1 (338.3)

31.8 (108.7) 36.5 (124.6) 41.6 (141.9) 58.3 (199.1) 68.9 (235) 74.1 (253) 90.3 (308.2)

28.2 (96.1) 32.5 (110.8) 37 (126.3) 52 (177.6) 61.4 (209.4) 65.9 (224.9) 80.4 (274.3)

25.8 (88.2) 29.9 (102.1) 34.1 (116.3) 47.9 (163.6) 56.5 (192.9) 60.6 (206.9) 74.1 (253)

FAN SECTION - Downflow Models - EC Fans Under Floor

4,400

(7,476)

2.8 2.8 2.8 2.5 4.0 5.9 7.8

5,200

(8,835)

6200

(10533.9)

8,000

(13,592)

9,600

(16,310)

11,000

(18,689)

13,700

(23,276)

Liebert® DS

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Air-Cooled Systems

Table 2 Performance data—Air-cooled, centrifugal fan

Model Size 028 035 042 053 070 077 105

CAPACITY DATA with Centrifugal Fans

Net Capacity Data kW (BTUH), Standard Air Volume and Evaporator Fan Motor

Semi Hermetic Compressors with Centrifugal Fans

85°F DB, 64.5°F WB, 52.3°F DP (29.4°C DB, 18.1°C WB) 32.4% RH

Total kW (kBTUH) 40.3 (137.6) 41.0 (140.0) 46.2 (157.6) 60.2 (205.3) 70.5 (240.6) 76.9 (262.6) 101.3 (345.6)

Sensible kW

(kBTUH)

38.0 (129.6) 40.3 (137.6) 45.5 (155.3) 59.7 (203.8) 69.7 (237.9) 76.2 (259.9) 96.6 (329.6)

80°F DB, 62.9°F WB, 52.3°F DP (26.7°C DB, 17.1°C WB) 38.2% RH

Total kW (kBTUH) 38.6 (131.8) 39.1 (133.3) 43.9 (150) 57.2 (195.1) 67.2 (229.3) 73.4 (250.6) 97.1 (331.5)

Sensible kW

(kBTUH)

34.3 (117.2) 36.5 (124.6) 41.2 (140.5) 54.8 (187.1) 63.8 (217.7) 69.8 (238.2) 87.7 (299.4)

75°F DB, 61.1°F WB, 52.3°F DP (23.9°C DB, 16.2°C WB) 45.1% RH

Total kW (kBTUH) 37.1 (126.5) 37.3 (127.2) 42 (143.3) 54.4 (185.6) 64.1 (218.9) 70.2 (239.7) 93.3 (318.4)

Sensible kW

(kBTUH)

30.5 (104.2) 32.3 (110.3) 36.4 (124.2) 48.7 (166.2) 56.5 (192.9) 61.8 (210.9) 77.8 (265.4)

72°F DB, 60.0°F WB, 52.3°F DP (22.2°C DB, 15.6°C WB) 49.9% RH

Total kW (kBTUH) 36.1 (123.3) 36.3 (123.8) 40.9 (139.6) 52.9 (180.6) 62.5 (213.2) 68.6 (234) 91.0 (310.6)

Sensible kW

(kBTUH)

28.2 (96.3) 29.7 (101.3) 33.4 (113.9) 44.7 (152.7) 51.9 (177.2) 56.7 (193.6) 71.5 (244.1)

Net Capacity Data kW (BTUH), Standard Air Volume and Evaporator Fan Motor

Scroll or Digital Scroll Compressors with Centrifugal Fans

85°F DB, 64.5°F WB, 52.3°F DP (29.4°C DB, 18.1°C WB) 32.4% RH

Total kW (kBTUH) 34.1 (116.4) 39.7 (135.5) 43.7 (149.2) 62.1 (212.1) 74.0 (252.6) 79.1 (270.1) 101.6 (346.9)

Sensible kW

(kBTUH)

40.1 (136.9) 34.0 (116.0) 43.6 (148.9) 61.3 (209.3) 72.3 (246.6) 77.8 (265.6) 96.8 (330.4)

80°F DB, 62.9°F WB, 52.3°F DP (26.7°C DB, 17.1°C WB) 38.2% RH

Total kW (kBTUH) 32.4 (110.5) 38.3 (130.8) 41.6 (141.9) 59.3 (202.5) 71.2 (243) 75.9 (259) 97.7 (333.5)

Sensible kW

(kBTUH)

31.0 (105.9) 36.1 (123.2) 39.9 (136.1) 56.1 (191.6) 65.9 (225) 71.1 (242.6) 88.0 (300.4)

75°F DB, 61.1°F WB, 52.3°F DP (23.9°C DB, 16.2°C WB) 45.1% RH

Total kW (kBTUH) 30.9 (105.3) 36.7 (125.4) 39.8 (135.7) 56.9 (194.2) 68.5 (233.9) 73 (249.3) 94.1 (321.1)

Sensible kW

(kBTUH)

27.5 (93.9) 32.1 (109.4) 35.3 (120.6) 49.9 (170.4) 58.6 (200.1) 63.1 (215.2) 78.1 (266.6)

72°F DB, 60.0°F WB, 52.3°F DP (22.2°C DB, 15.6°C WB) 49.9% RH

Total kW (kBTUH) 30.0 (102.5) 35.9 (122.4) 38.8 (132.3) 55.5 (189.5) 67 (228.7) 71.4 (243.7) 91.9 (313.7)

Sensible kW

(kBTUH)

25.3 (86.3) 29.5 (100.6) 32.4 (110.5) 46.0 (157) 54.0 (184.3) 58.0 (197.8) 71.9 (245.5)

FAN SECTION - Downflow Models - Fixed Pitch, Two Belts

Standard Air

Volume - CFM

(CMH) 0.2"

4,400

(7,476)

5,200

(8,835)

6,300

(10,704)

7,500

(12,743)

9,000

(15,291)

external static

Standard Fan Motor hp (kW)

2 (1.5) 3 (2.2) 5.0 (3.7) 3 (2.2) 5 (3.7) 7.5 (5.6) 10.0 (7.5)

Number of Fans 1 1 1 2 2 2 3

1. Capacity data is rated and factory-certified per ASHRAE 127-2012 with a 5% tolerance.

2. Some options or combinations of options may result in reduced air flow—consult factory for recommendations.

3. Digital scroll not available on 077 and 105 models; units available with semi-hermetic and standard scroll compressors only

Scroll Compressors Only

10,400

(17,670)

13,700

(23,276)

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Air-Cooled Systems

Table 3 Physical data—Air-cooled systems

Model Size 028 035 042 053 070 077 105

EVAPORATOR COIL- A-Frame - Copper Tube/Aluminum Fin

Face Area, sq. ft. (sq. m)

Rows of Coil

Electric Reheat - Three-Stage, Stainless Steel Fin Tubular, capacity does not include fan motor heat

Capacity - kW (kBTUH) - Standard

Selection

Capacity, kW (kBTUH) - Optional

Selection

Electric Reheat - SCR Control, Stainless Steel Fin Tubular (optional selection)

Capacity, kW (kBTUH)

Infrared Humidifier (Steam canister humidifiers available on downflow models with centrifugal fans)

Capacity, lb./hr. (kg/h)

FILTER SECTION - Disposable Type - Nominal Sizes and Quantities, Standard MERV 8 or Optional MERV 11

(filter types cannot be mixed, must be all MERV 8 or all MERV 11)

Downflow Models

Quantity

Nominal Size, inches

Upflow Models (Front & Rear return) Filters located in separate filter box on rear return, located on lower unit panel

Quantity

Nominal Size, inches 25x20 25x20 25x20 25x20 25x20 25x20 25x20

PIPING CONNECTION SIZES - Air-cooled Liebert DS Indoor Unit (Not External Line Sizes)

Liquid Line, O.D. Copper (2/unit) 1/2 1/2 1/2 5/8 5/8 5/8 5/8

Hot Gas Line, O.D. Copper (2/unit) 5/8 5/8 5/8 7/8 7/8 7/8 1-1/8

Infrared Humidifier, O.D. Copper

Condensate Drain, FPT

Condensate Drain w/Optional

Condensate Pump, OD

OUTDOOR AIR-COOLED CONDENSER, STANDARD 95°F AMBIENT SELECTION; see Tables 44 and 49 for other selections

Model (R-407C refrigerant) MCM080_8 MCM080_8 MCM080_8 MCM080_8 MCM080_8 MCM080_8 MCL110_8

Number of Fans 222 2 2 2 2

DUAL-COOL UNITS DATA, Water (0% Glycol), Net Capacity Data kW (kBTUH)

CAUTION: CuNi coil option must be specified when Econ-O-Coil is applied to open water tower.

75°F DB, 61.1 WB (23.9°C DB, 16.2°C WB) 45% RH, 45°F EWT, 55°F LWT Based on Centrifugal Fans

Total Capacity, kW (kBTUH)

Sensible Capacity, kW (kBTUH) 24.9 (85) 28.8 (98.2) 31.6 (107.8) 46 (157.1) 51.7 (176.4) 54.3 (185.4)

Flow Rate GPM (I/m) @ 10°F Rise 19 (71.9) 22.4 (84.8) 25.5 (96.5) 36.4 (138) 41.7 (158) 46 (174)

Pressure Drop, ft. (kPa), valve, coil 6.1 (18.23) 8.3 (24.81)

Airflow, CFM (CMH) 4400 (7475) 5500 (9344)

Econ-O-Coil fluid volume, gal (l)

Capacity data is rated per ASHRAE 127-2012 with a 5% tolerance

17.1 (1.6) 17.1 (1.6) 17.1 (1.6) 24.7 (2.3) 24.7 (2.3) 24.7 (2.3) 32.3 (3.0)

333 3 3 3 3

REHEAT SECTION

15.0 (51.2) 15.0 (51.2) 15.0 (51.2) 25.0 (85.3) 25.0 (85.3) 25.0 (85.3) 30.0 (102.4)

10.0 (34.1) 10.0 (34.1) 10.0 (34.1) 15.0 (51.2) 15.0 (51.2) 15.0 (51.2) 20.0 (68.3)

15.0 (51.2) 15.0 (51.2) 15.0 (51.2) 25.0 (85.3) 25.0 (85.3) 25.0 (85.3) 30.0 (102.4)

HUMIDIFIER SECTION

11.0 (5.0) 11.0 (5.0) 11.0 (5.0) 22.0 (10.0) 22.0 (10.0) 22.0 (10.0) 22.0 (10.0)

333 4 4 4 4

2 @ 25x20 1 @ 25x16

444 6 6 6 8

1/4 1/4 1/4 1/4 1/4 1/4 1/4

3/4 3/4 3/4 3/4 3/4 3/4 3/4

1/2 1/2 1/2 1/2 1/2 1/2 1/2

26.2 (89.2) 29.8 (101.6) 32.2 (109.8) 49.9 (170.4) 55.3 (188.8) 57.7 (196.8)

2 @ 25x20 1 @ 25x16

10.50 (31.39) 10.40 (31.09)

6600

(11213)

4 @ 25x20 4 @ 25x20 4 @ 25x20 4 @ 25x20

8000

(13592)

13.3 (39.8) 15.9 (47.6)

9600

(16310)

11000

(18689)

75.8 (258.8)

73 (249.1)

59.4 (225)

15.9 (47.5)

13,700

(23,256)

Fluid Volumes

5 (19.0) 5 (19.0) 5 (19.0) 8 (30.4) 8 (30.4) 8 (30.4) 10 (38.0)

Liebert® DS

™

Page 13

Table 4 Electrical data—Air-cooled systems with EC fans

Air-Cooled Systems

Reheat

Options

Humid-

ifier

Options Infrared Infrared None None Humidifier No Humidifier

Model

Volts 208 230 460 575 208 230 460 575 208 230 460 575 208 230 460 575 208 230 460 575 208 230 460 575

FLA 67.3 64.8 32.1 25.5 56.3 54.1 26.9 24.2 67.3 64.8 32.1 25 43 43 21.1

DS028

WSA 82 78.9 39.2 31.9 60.6 58.4 29.1 25.9 82 78.9 39.2 30.5 47.3 47.3 23.3

OPD 80804030707035308080403060 6030

FLA 70.7 68.2 33.4 25.5 63.1 60.9 29.5 25.2 70.7 68.2 33.4 25.5 49.8 49.8 23.7

DS035

WSA 86.3 83.2 40.8 31.9 68.3 66.1 32 27.1 86.3 83.2 40.8 31.1 55 55 26.2

OPD 90904530808040309090453070 7035

FLA 78.2 75.9 37.7 33 78.1 75.9 37.7 33 78.2 75.7 37.5 29.4 64.8 64.8 31.9

DS042

WSA 95.7 92.5 46 36 85.2 83 41.2 35.8 95.7 92.5 46 36 71.9 71.9 35.4

OPD 110 110 50 45 110 110 50 45 110 110 50 40 100 100 45

FLA 119.9 116 57.1 43.5 109.2 104.8 52.4 42 119.9 116 57.1 43.5 82.6 82.6 40.8

DS053

WSA 145.3 140.4 69.4 53.9 117.2 112.8 56.5 45 145.3 140.4 69.4 52.8 90.6 90.62 44.9

OPD 150 150 70 50 125 125 70 50 150 150 70 50 110 110 60

FLA 129.2 125.3 59.9 46.4 127.8 123.4 58 46.4 129.2 125.3 59.9 45.7 101.2 101.2 46.4

DS070

WSA 156.9 152 72.9 55.5 138.2 133.8 62.8 50 156.9 152.0 72.9 55.5 111.6 111.6 51.2

OPD 175 175 80 60 175 175 80 60 175 175 80 60 150 150 70

FLA 139.2 134.8 61.4 50 139.2 134.8 61 50 134.9 131 61.4 47.5 112.6 112.6 49.4

DS077

WSA 164 159.2 74.8 57.8 151. 146.6 66.2 54 164.0 159.2 74.8 57.8 124.37 124.4 54.6

OPD 175 175 80 70 175 175 80 70 175 175 80 60 150 150 70

FLA 171.5 167.1 83.7 69.1 171.5 167.1 83.7 69.1 164 163.5 79.8 62.6 144.9 144.9 72.1

WSA 198.8 198.2 97.4 76.4 186.5 182.1 91.6 75.4 198.8 198.2 97.4 76.4 159.9 159.9 80

DS105

OPD 225 225 110 100 225 225 110 100 225 225 110 90 200 200 110

1. Reduced reheat for 028, 035, and 042 models is 10kW.

2. Reduced reheat for 053, 070, and 077 models is 15kW.

3. Consult local representative for SCR reheat values.

4. Reduced reheat for 105 kW models is 20kW.

5. SCCR - Short Circuit Current Rating 65,000 amps rms symmetrical maximum.

6. Steam canister humidifiers not available on models with EC fans.

Electric

Standard, kW None

Electric

Standard kW None

16.8 56.3

18.5 64.8

25 70

17.8 63.1

19.7 69

25 80

25.6 78.1

28.4 85.2

35 110

30.4 109.2

33.4 117.2

45 125

34.8 127.8

38.4 138.2

50 175

38.4 139.2

42.4 151

50 175

57.5 171.5

63.8 186.5

80 225

Electric,

Downsized kW

54.1 26.9 24.2 53.5 51.9 25.6 19.9

62.8 31.1 25.9 64.8 62.8 31.1 24.1

70 35 30 70 70 35 25

60.9 29.5 25.2 56.9 55.3 26.9 20.4

67 32.7 27.1 69 67 32.7 24.8

80 40 30 80 80 35 25

75.9 37.7 33 64.8 64.8 31.9 25.6

83 41.2 35.8 78.4 76.4 37.8 29.6

110 50 45 100 100 45 35

104.8 52.4 42 92.1 89.6 44.1 33.5

112.8 56.5 45 110.52 107.4 53.1 40.3

125 70 50 125 125 60 45

123.4 58 46.4 101.4 101.2 46.9 35.7

133.8 62.8 50 122.15 119.02 56.6 43

175 80 60 150 150 70 50

134.8 61 50 112.6 112.6 49.4 38.4

146.6 66.2 54 129.27 126.15 58.5 45.3

175 80 70 150 150 70 50

167.1 83.7 69.1 144.9 144.9 72.1 57.5

182.1 91.6 75.4 169.3 165.5 81.3 63.9

225 110 100 200 200 110 80

Electric,

Downsized kW

9Liebert

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Page 14

Air-Cooled Systems

Table 5 Electrical data—Air-cooled systems with centrifugal fans

Reheat Options Electric, Std. kW None Electric, Std. kW None

Humidifier

Options

Motor

Model

hp Volts 208 230 460 575 208 230 460 575 208 230 460 575 208 230 460 575

FLA 66.4 63.2 31.8 25.2 55.4 52.5 26.6 23.9 66.4 63.2 31.8 24.7 42.1 41.4 20.8 16.5

028 2.0

WSA 81.1 77.3 38.9 31.5 59.7 56.8 28.8 25.6 81.1 77.3 38.9 30.2 46.4 45.7 23 18.2

OPD80804030707035308080403060603025

FLA 69.5 66.0 33.2 26.4 58.5 55.3 28.0 25.1 69.5 66.0 33.2 25.9 45.2 44.2 22.2 17.7

028 3.0

WSA 84.2 80.1 40.3 33 62.8 59.6 30.2 26.8 84.2 80.1 40.3 31.4 49.5 48.5 24.4 19.4

OPD90804030807035309080403060603025

FLA 72.9 69.4 34.5 26.4 65.3 62.1 30.6 26.1 72.9 69.4 34.5 26.4 52.0 51.0 24.8 18.7

035 3.0t

WSA 88.5 84.4 41.9 33.0 70.5 67.3 33.1 28.0 88.5 84.4 41.9 32.0 57.2 56.2 27.3 20.6

OPD90904535908040359090453570703525

FLA 79.0 75.0 37.3 28.6 71.4 67.7 33.4 28.3 79.0 75.0 37.3 28.6 58.1 56.6 27.6 20.9

035 5.0

WSA 94.6 90.0 44.7 35.8 76.6 72.9 35.9 30.2 94.6 90.0 44.7 34.2 63.3 61.8 30.1 22.8

OPD 100 100 45 35 90 90 45 35 100 100 45 35 80 80 40 30

FLA 86.5 82.7 41.6 36.1 86.4 82.7 41.6 36.1 86.5 82.5 41.4 32.5 73.1 71.6 35.8 28.7

042 5.0

WSA 104 99.3 49.9 39.1 93.5 89.8 45.1 38.9 104.0 99.3 49.9 39.1 80.2 78.7 39.3 31.5

OPD 110 110 50 50 110 110 50 50 110 110 50 45 100 100 50 40

FLA 94.0 89.5 45.0 39.0 93.9 89.5 45.0 39.0 94.0 89.3 44.8 35.4 80.6 78.4 39.2 31.6

042 7.5

WSA 111.5 106.1 53.3 42.0 101.0 96.6 48.5 41.8 111.5 106.1 53.3 42.0 87.7 85.5 42.7 34.4

OPD 125 110 60 50 125 110 60 50 125 110 60 45 110 110 50 45

FLA 112.1 107.2 53.9 41 101.4 96 49.2 39.5 112.1 107.2 53.9 41 74.8 73.8 37.6 27.9

053 3.0

WSA 137.5 131.6 66.2 50.8 109.4 104.0 53.3 42.5 137.5 131.6 66.2 50.3 82.8 81.8 41.7 30.9

OPD 150 125 70 50 125 125 60 50 150 125 70 50 110 110 50 40

FLA 118.2 112.8 56.7 43.2 107.5 101.6 52.0 41.7 118.2 112.8 56.7 43.2 80.9 79.4 40.4 30.1

053 5.0

WSA 143.6 137.2 69.0 53.5 115.5 109.6 56.1 44.7 143.6 137.2 69.0 52.5 88.9 87.4 44.5 33.1

OPD 150 150 70 50 125 125 70 50 150 150 70 50 110 110 60 45

FLA 127.5 122.1 59.5 46.1 126.1 120.2 57.6 46.1 127.5 122.1 59.5 45.4 99.5 98 46 34.5

070 5.0

WSA 155.2 148.8 72.5 55.2 136.5 130.6 62.4 49.7 155.2 148.8 72.5 55.2 109.9 108.4 50.8 38.1

OPD 175 150 80 60 175 150 80 60 175 150 80 60 150 125 70 50

FLA 135.0 128.9 62.9 49.0 133.6 127.0 61.0 49.0 135.0 128.9 62.9 48.3 107.0 104.8 49.4 37.4

070 7.5

WSA 162.7 155.6 75.9 58.1 144.0 137.4 65.8 52.6 162.7 155.6 75.9 58.1 117.4 115.2 54.2 41.0

OPD 175 175 80 60 175 175 80 60 175 175 80 60 150 150 70 50

FLA 145 138.4 64.4 52.6 145.0 138.4 64.0 52.6 140.7 134.6 64.4 50.1 118.4 116.2 52.4 41.0

077 7.5

WSA 169.8 162.8 77.8 60.4 156.8 150.2 69.2 56.6 169.8 162.8 77.8 60.4 130.2 128.0 57.6 45.0

OPD 200 175 90 70 200 175 80 70 175 175 90 70 175 175 70 60

FLA 151.6 144.4 67.4 54.6 151.6 144.4 67.0 54.6 147.3 140.6 67.4 52.1 125.0 122.2 55.4 43.0

077 10.0

WSA 176.4 168.8 80.8 62.4 163.4 156.2 72.2 58.6 176.4 168.8 80.8 62.4 136.8 134.0 60.6 47.0

OPD 200 200 90 70 200 200 90 70 200 175 90 70 175 175 80 60

FLA 177.4 170.2 88.4 72.6 177.4 170.2 88.4 72.6 169.9 166.6 84.5 66.1 150.8 148 76.8 61.0

105 10.0

WSA 204.7 201.3 102.1 79.9 204.7 201.3 102.1 79.9 204.7 201.3 102.1 79.9 165.8 163.0 84.7 67.3

OPD 250 225 125 100 250 225 125 100 225 225 110 90 225 200 110 90

FLA 192.3 184.2 95.4 78.6 192.3 184.2 95.4 78.6 185.3 180.6 91.5 72.1 166.2 162.0 83.8 67.0

105 15.0

WSA 220.1 215.3 109.1 85.9 220.1 215.3 109.1 85.9 220.1 215.3 109.1 85.9 181.2 177.0 91.7 73.3

OPD 250 250 125 100 250 250 125 100 250 250 125 100 225 225 110 90

1. Reduced reheat for 028, 035, and 042 models is 10kW.

2. Reduced reheat for 053, 070, and 077 models is 15kW.

3. Consult local representative for SCR reheat values.

4. Reduced reheat for 105 kW models is 20kW.

5. SCCR - Short Circuit Current Rating 65,000 amps rms symmetrical maximum.

Infrared or Steam

Generating Canister

Infrared or Steam

Generating Canister None None

Liebert® DS

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Page 15

Table 5 Electrical data—Air-cooled systems with centrifugal fans (continued)

Reheat Options Electric, Downsized kW

Humidifier Options Infrared or Steam Generating Canister None

Model Motor, hp Volts 208 230 460 575 208 230 460 575

FLA 55.4 52.5 26.6 23.9 52.6 50.3 25.3 19.6

028 2.0

028 3.0

035 3.0

035 5.0

042 5.0

042 7.5

053 3.0

053 5.0

070 5.0

070 7.5

077 7.5

077 10.0

105 10.0

105 15.0

1. Reduced reheat for 028, 035, and 042 models is 10kW.

2. Reduced reheat for 053, 070, and 077 models is 15kW.

3. Consult local representative for SCR reheat values.

4. Reduced reheat for 105 kW models is 20kW.

5. SCCR - Short Circuit Current Rating 65,000 amps rms symmetrical maximum.

WSA 63.9 61.2 30.8 25.6 63.9 61.2 30.8 23.8

OPD 70 70 35 30 70 70 35 25

FLA 58.5 55.3 28 25.1 55.7 53.1 26.7 20.8

WSA 67.0 64.0 32.2 26.8 67.0 64.0 32.2 25.0

OPD 80 70 35 30 70 70 35 25

FLA 65.3 62.1 30.6 26.1 59.1 56.5 28.0 21.3

WSA 71.2 68.2 33.8 28.0 71.2 68.2 33.8 25.7

OPD 90 80 40 35 80 80 40 30

FLA 71.4 67.7 33.4 28.3 65.2 62.1 30.8 23.5

WSA 77.3 73.8 36.6 30.2 77.3 73.8 36.6 27.9

OPD 90 90 45 35 90 80 40 30

FLA 86.4 82.7 41.6 36.1 73.1 71.6 35.8 28.7

WSA 93.5 89.8 45.1 38.9 86.7 83.2 41.7 32.7

OPD 110 110 50 50 100 100 50 40

FLA 93.9 89.5 45.0 39.0 80.6 78.4 39.2 31.6

WSA 101.0 96.6 48.5 41.8 94.2 90.0 45.1 35.6

OPD 125 110 60 50 110 110 50 45

FLA 101.4 96.0 49.2 39.5 84.3 80.8 40.9 31

WSA 109.4 104.0 53.3 42.5 102.7 98.6 49.9 37.8

OPD 125 125 60 50 110 110 60 45

FLA 107.5 101.6 52.0 41.7 90.4 86.4 43.7 33.2

WSA 115.5 109.6 56.1 44.7 108.8 104.2 52.7 40.0

OPD 125 125 70 50 125 125 60 45

FLA 126.1 120.2 57.6 46.1 99.7 98 46.5 35.4

WSA 136.5 130.6 62.4 49.7 120.5 115.8 56.2 42.7

OPD 175 150 80 60 150 125 70 50

FLA 133.6 127.0 61.0 49.0 107.2 104.8 49.9 38.3

WSA 144.0 137.4 65.8 52.6 128.0 122.6 59.6 45.6

OPD 175 175 80 60 150 150 70 50

FLA 145 138.4 64.0 52.6 118.4 116.2 52.4 41.0

WSA 156.8 150.2 69.2 56.6 135.1 129.8 61.5 47.9

OPD 200 175 80 70 175 175 70 60

FLA 151.6 144.4 67.0 54.6 125.0 122.2 55.4 43.0

WSA 163.4 156.2 72.2 58.6 141.7 135.8 64.5 49.9

OPD 200 200 90 70 175 175 80 60

FLA 177.4 170.2 88.4 72.6 150.8 148 76.8 61.0

WSA 192.4 185.2 96.3 78.9 175.2 168.6 86.0 67.4

OPD 250 225 125 100 225 200 110 90

FLA 192.8 184.2 95.4 78.6 166.2 162.0 83.8 67.0

WSA 207.8 199.2 103.3 84.9 190.6 182.6 93.0 73.4

OPD 250 250 125 100 225 225 110 90

Air-Cooled Systems

11 Liebert® DS

™

Page 16

Air-Cooled Systems

See 3.2 - Standard Electrical Connections, 3.3 Optional Electrical Connections and 3.4 - Optional Low-Voltage Terminal Package Connections for keys to numbered components.

Figure 6 Electrical field connections—Upflow and downflow models, single molded case switch

disconnect with main fuses

Liebert IntelliSlot Housing

60Hz

82 89

OVERCURRENT PROTECTION DEVICES

CONTACTORS

CONTACTORS, RELAYS, & OVERLOAD PROTECTORS

Typical orientation of components shown.

Component location varies by option and unit size

7576949596 97 91

UPFLOW

Alternate

Location

P64

P67

DOWNFLOW

DOWNFLOW LOW-VOLT SECTION

CAUTION

Risk of broken or shorted low-voltage

wiring. Field-installed low-voltage wiring must be routed with loop as shown to allow electric box to swing.

58 85

37C

38C

37B

38B

37 38 24

7071230

SH49-1

49-3

Item 12 Installation Conditions

1. Follow all local installation codes.

2. Do not run CAN cables in same conduit, raceway, or chase as high voltage wires (120-600V).

3. Separate high-voltage wires from CAN wires by 12" (305mm).

4. For runs greater than 350ft (107m), contact Emerson factory.

Point of Hinged Low-Voltage Electric Box

DS UPFLOW LOW VOLT SECTION

DPN000807 Pg. 2, Rev. 8

Liebert® DS

™

Page 17

Air-Cooled Systems

See 3.2 - Standard Electrical Connections, 3.3 Optional Electrical Connections and 3.4 - Optional Low-Voltage Terminal Package Connections for keys to numbered components.

Figure 7 Electrical field connections—Upflow and downflow models, dual fused disconnect switches

Liebert

IntelliSlot Housing

60 Hz

17 18

82 89

PRIMARY

Alternate

Alternate Location

Location

P64

P67

OVERCURRENT PROTECTION DEVICES

SECONDARY

CONTACTORS

CONTACTORS, RELAYS and OVERLOAD PROTECTORS

Typical orientation of components shown.

Component location varies by option and unit size

DOWNFLOW LOW-VOLTAGE SECTION

UPFLOW

7576949596 97 91

DOWNFLOW

CAUTION:

Risk of broken or shorted low-voltage wiring. Field-installed low-voltage wiring must be routed with loop as shown to allow electric box to swing.

7071230

SH49-1

49-3

37C

37B

58 85

38C

38B

37 38 24

Item 12 Installation Conditions

1. Follow all local installation codes.

2. Do not run CAN cables in same conduit, raceway or chase as high-voltage wires (120-600V).

3. Separate high-voltage wires from CAN wires by 12" (305mm).

4. Contact Liebert factory for runs greater than 350ft. (107m).

5. All electrical loads may not be capable of being connected to both power feeds, with automatic transfer switch. Consult local representative for dual power configurations available.

Point of Hinged Low-Voltage Electric Box

DS UPFLOW LOW-VOLTAGE SECTION

DPN000807 Pg. 3, Rev. 8

13 Liebert® DS

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Page 18

3.2 STANDARD ELECTRICAL CONNECTIONS

Source: DPN000807, Rev. 8

1. Primary high voltage entrance—2.5" (64mm); 1.75" (44mm); 1.375" (35mm) diameter concentric knockouts located in bottom of box.

2. Secondary high voltage entrance—2.5" (64mm); 1.75" (44mm); 1.375" (35mm) diameter concentric knockouts located in top of box.

3. Primary low voltage entrance—Quantity (3) 1.375" (35mm) diameter knockouts located in bottom of unit.

4. Secondary low voltage entrance—Quantity (3) 1. 375" (35mm) diameter knockouts located in top of box.

5. Three phase electrical service—Terminals are on main fuse block (disregard if unit has optional disconnect switch). Three-phase service not by Emerson.

6. Earth ground—Terminal for field-supplied earth grounding wire. Earth grounding required for Liebert units.

7. Remote unit shutdown—Replace existing jumper between Terminals 37 & 38 with field-supplied normally closed switch having a minimum 75VA, 24VAC rating. Use field-supplied Class 1 wiring.

8. Customer alarm inputs—Terminals for field-supplied, normally open contacts, having a minimum 75VA, 24VAC rating, between Terminals 24 & 50, 51, 55 & 56. Use field-supplied Class 1 wiring. Terminal availability varies by unit options.

9. Common alarm—On any alarm, normally open dry contact is closed across Terminals 75 & 76 for remote indication. 1A, 24VAC maximum load. Use Class 1 field-supplied wiring.

10. Heat rejection interlock—On any call for compressor operation, normally open dry contact is closed across Terminals 70 & 71 (Circuit 1), 230 (Circuit 2) to heat rejection equipment. 1A, 24VAC maximum load. Use field-supplied Class 1 wiring. When a Liebert DS unit is paired with a Liebert MC series condenser, remove jumper between Terminal 71 and Terminal 230. Three wires must connect Terminals 70, 71 and 230 of the indoor unit to Terminals 70, 71 and 230 of the Liebert MC series condenser.

Air-Cooled Systems

Liebert® DS

™

Page 19

3.3 OPTIONAL ELECTRICAL CONNECTIONS

Source: DPN000807, Rev. 8

11. Unit factory installed disconnect switch, Fuse Block and Main Fuses—Two types of disconnect switches are available: Non-Locking and Locking. The Non-Locking Type consists of a non-automatic molded case switch operational from the outside of the unit. Access to the high-voltage electric panel compartment can be obtained with the switch in either the On or Off position. The Locking Type is identical except access to the high-voltage electric panel compartment can be obtained only with the switch in the Off position. Units with fused disconnects are provided with a defeater button that allows access to the electrical panel when power is On. The molded case switch disconnect models contain separate main fuses. Units with fused disconnect have main fuses within the disconnect. Only fused disconnects are used on dual disconnect options.

12. Secondary disconnect switch and earth ground

13. Three-phase electrical service—Terminals are on top of disconnect switch. Three-phase service not by Emerson.

14. Smoke sensor alarm—Factory-wired dry contacts from smoke sensor are 91-common, 92-NO, and 93-NC. Supervised contacts, 80 & 81, open on sensor trouble indication. This smoke sensor is not intended to function as or replace any room smoke detection system that may be required by local or national codes. 1A, 24VAC maximum load. Use field-supplied Class 1 wiring.

15. Reheat and humidifier lockout—Remote 24VAC required at Terminals 82 & 83 for lockout of reheat and humidifier.

16. Condensate alarm (with condensate pump option)—On pump high water indication, normally open dry contact is closed across Terminals 88 & 89 for remote indication. 1A, 24VAC maximum load. Use field-supplied Class 1 wiring.

17. Remote humidifier—On any call for humidification, normally open dry contact is closed across Terminals 11 & 12 to signal field-supplied remote humidifier. 1A, 24VAC maximum load. Use Class 1 field-supplied wiring.

18. Auxiliary cool contact—On any call for Econ-O-coil operation, normally open dry contact is closed across Terminals 72 & 73 on dual cool units only. 1A, 24VAC maximum load. Use field-supplied Class 1 wiring.

Air-Cooled Systems

3.4 OPTIONAL LOW-VOLTAGE TERMINAL PACKAGE CONNECTIONS

Source: DPN000807, Rev. 8

19. Remote unit shutdown—Two additional contact pairs available for unit shutdown (labeled as 37B & 38B, 37C and 38C). Replace jumpers with field-supplied, normally closed switch having a minimum rating of 75VA, 24VAC. Use field-supplied Class 1 wiring.

20. Common alarm—On any alarm, two additional normally open dry contacts are closed across Terminals 94 & 95 and 96 & 97 for remote indication. 1A, 24VAC maximum load. Use field-supplied Class 1 wiring.

21. Main fan auxiliary switch—On closure of main fan contactor, normally open dry contact is closed across Terminals 84 & 85 for remote indication. 1A, 24VAC maximum load. Use field-supplied Class 1 wiring.

22. Liebert Liqui-tect open dry contact is closed across Terminals 58 & 59 for remote indication (Liebert Liqui-tect sensor ordered separately). 1A, 24VAC maximum load. Use field-supplied Class 1 wiring.

™

shutdown and dry contact—On Liebert Liqui-tect activation, normally

15 Liebert® DS

™

Page 20

3.5 DIMENSIONS—LIEBERT DS 028-042, DOWNFLOW, AIR-COOLED MODELS

Secondary Refrigerant

Piping Entrance

DPN000796 Rev. 3

Filters are accessible through top of unit only. Downflow electrical connections can be made from top or bottom of unit.

Shaded area indicates a recommended minimum clearance for component access.

TOP VIEW

Air Inlet Opening

Secondary Entrance

High-Volt Connection(s)

Secondary Entrance

Low-Volt Connections

Minimum required for filter replacement

73" (1854mm)

72" (1829mm)

76"

(1930mm)

35"

(889mm)

56-7/8"

(1445mm)

Opening

3/4"

(19mm)

24-3/8"

(619mm)

34" (864mm)

33"

(838mm)

(127mm)

Bezels

FRONT VIEW

(51mm)

The following figures are general illustrations that show the dimensional layout for a Liebert DS unit.

Figure 8 Dimensions—downflow, air-cooled, 28-42kW (8-12 ton), scroll or digital scroll compressors

with centrifugal fans

Air-Cooled Systems

Table 6 Weights—downflow, air-cooled, 28-42kW (8-12 ton), scroll/digital scroll compressors

Dry Weight, Approximate, lb. (kg)

Model Type Model Size: 028-042

Air-Cooled 1470 (668)

Dual-Cool 1620 (736)

Source: DPN000796, Rev. 3

Liebert® DS

™

Page 21

Air-Cooled Systems

Figure 9 Dimensions—downflow, air-cooled, 28-42kW (8-12 ton), front and/or rear discharge models

Minimum required

for filter replacement

Filters are accessible only through top of unit.

(127mm)

Secondary Refrigerant Piping Entrance

(1445mm) Opening

56-7/8"

24" (610mm)

Required for Condenser cleanout on Water/Glycol or GLYCOOL/Dual Cool

(77mm)

24-3/8"

(619mm)

Opening

3/4" (19mm) Bezels

Shaded area indicates a recommended minimum clearance for component access.

(76mm)

(483mm)

19"

3-1/4"

(81mm)

33-3/8"

(848mm)

Air Outlet Opening

REAR VIEW

33"

(838mm)

35"

(889mm)

Secondary Entrance High-Voltage Connection(s)

76"

(1930mm)

(51mm)

FRONT VIEW

AIR INLET OPENING

TOP VIEW

Secondary Entrance Low-Voltage Connections

33-1/2"

(851mm)

19"

(483mm)

Air Outlet Opening

3-1/4"

(83mm)

Customer Piping and Wiring Connections

1. For primary connection locations see standard submittals DPN000803, DPN000804 or DPN000900. A floor stand at least 9" high is recommended if primary connections locations are to be used.

2. If no floor stand is used and unit is placed directly on the floor, then do the following: a) Use secondary connection locations (shown on standard floor planning submittals). b) Order a condensate pump. c) Field pipe condensate and humidier line (if ordered) to secondary connection point in compressor section. d) Or order additional SFA's to relocate connection locations

34"

(864mm)

310697 Pg. 1, Rev. 0

Dry Weight, lb (kg) Approximate Dimensions, In. (mm)

Compressor Type Model

Semi-Hermetic

Scroll / Digital

Source: 310697, Pg. 1, Rev. 0

028-042 A B

Air-Cooled 1780 (809)

Dual Cool 1930 (877)

Air-Cooled 1470 (668)

Dual Cool 1620 (736)

86 (2184mm) 85 (2159)

73 (1854) 72" (1829)

17 Liebert® DS

™

Page 22

Air-Cooled Systems

Figure 10 Primary connection locations—downflow, air-cooled, 28-42kW (8-12 ton), scroll or

digital scroll compressors with centrifugal fans

NOTE: Drawing not to scale.

Tolerance on all piping dimensions is ± 1/2" (13mm).

4" (102mm)

11-3/16"

(284mm)

FRONT VIEW

SECTION A-A

BLOWER

ECS

HUM

ECR

OUTLET

16-1/16"

(408mm)

FRONT OF UNIT

73" (1854mm)

All dimensions from rear corner of unit, including panels

LV1 LV2 LV3

35"

(889mm)

DPN000804 Rev. 3

Table 7 Piping data—downflow, air-cooled, 28-42kW (8-12 ton), scroll/digital scroll

Point Description

in. (mm)

R Refrigerant Access 59-5/16 (1507) 14-3/4 (375) 11-3/16 x 4 (284 x 102)

L1 Liquid Line System 1 69-15/16 (1776) 16-13/16 (411) 1/2" Cu Sweat

L2 Liquid Line System 2 67-5/8 (1718) 16-13/16 (411) 1/2" Cu Sweat

G1 Hot Gas Discharge 1 65-1/2 (1664) 16-13/16 (411) 5/8" Cu Sweat

G2 Hot Gas Discharge 2 62-7/16 (1586) 16-13/16 (411) 5/8" Cu Sweat

Condensate Drain (infrared humidifier or no humidifier) *

Condensate Drain (steam generating humidifier) *

46 (1168) 29-1/2 (749) 3/4" FPT

46 (1168) 29-1/2 (749) 1-1/4" FPT

W/ Optional Pump 46 (1168) 29-1/2 (749) 1/2" Cu Sweat

HUM Humidifier Supply Line 53-1/2 (1359) 29 (737) 1/4" Cu Sweat

ECS Econ-O-Coil Supply 54-7/8 (1394) 22-9/16 (573) 1-5/8" Cu Sweat

ECR Econ-O-Coil Return 49-3/8 (1254) 30-3/4 (781) 1-5/8" Cu Sweat

E1 Electrical Conn. (High Volt) 55-1/2 (1410) 31-1/4 (794) 2-1/2"

E2 Electrical Conn. (High Volt) 52-7/16 (1332) 31-1/4 (794) 2-1/2"

LV1 Electrical Conn. (Low Volt) 2-1/4 (57) 27 (686) 7/8"

LV2 Electrical Conn. (Low Volt) 2-1/4 (57) 29 (737) 7/8"

LV3 Electrical Conn. (Low Volt) 2-1/4 (57) 31 (787) 7/8"

B Blower Outlet 21-15/16 (557) 18-1/16 (459) 18-3/4 x 16-1/16 (476 x 408)

* Field pitch condensate drain line a minimum of 1/8" (3.2 mm) per foot (305 mm). All units contain a factory-installed condensate trap. Do

not trap external to the unit. Drain line may contain boiling water. Select appropriate drain system materials. The drain line must comply

with all local codes. Piping dimensions shown are connection sizes; field piping sizes may be different depending on distance. Refer to user manual, SL-18825. Source: DPN000804, Rev. 3

in. (mm)

Connection Size / Opening

in. (mm)

Liebert® DS

™

Page 23

Air-Cooled Systems

59" (1499mm)

DPN000802 Rev. 2

33"

(838mm)

13"

(330mm)

76"

(1930mm)

72" (1829mm)

Assembled Length

76"

(1930mm)

Assembled

Height

60-3/16"

(1529mm)

37"

(940mm)

39"

(991mm)

Compressor Assembly

Filter & Electric Box Assembly

Blower & Coil Assembly

NOTES: Drawing views are simplified with panels removed to show overall dimensions. See disassembly and handling instructions in installation manual.

Figure 11 Disassembly dimensions—downflow, air-cooled, 28-42kW (8-12 ton), scroll or digital scroll

compressors with centrifugal fans

Table 8 Component weights—downflow, air-cooled, 28-42kW (8-12 ton), scroll or digital scroll

compressors

Dry Weight, Approximate, lb. (kg)

Component

Compressor Assembly 490 (223) 490 (223)

Filter and Electric Box Assembly 210 (96) 210 (96)

Blower and Coil Assembly 770 (350) 920 (418)

Source: DPN000802, Rev. 2

Air-Cooled Dual-Cool

19 Liebert® DS

™

Page 24

DPN000795 Rev. 4

Filters are accessible through top of unit only. Downflow electrical connections can be made from top or bottom of unit.

Shaded area indicates a recommended minimum clearance for component access.

TOP VIEW

FRONT VIEW

Air Inlet Opening

Secondary Entrance

High Volt Connection(s)

Secondary Refrigerant

Piping Entrance

Secondary Entrance

Low Volt Connections

Minimum required

for filter replacement

86" (2184mm)

85" (2159mm)2"

(51mm)

76"

(1930mm)

35"

(889mm)

56-7/8"

(1445mm)

Opening

3/4"

(19mm)

Opening

34"

(864mm)

33"

(838mm)

(127mm)

Bezels

24-3/8"

(619mm)

Air-Cooled Systems

Figure 12 Dimensions—downflow, air-cooled, 28-42kW (8-12 ton), semi-hermetic compressors with

centrifugal fans

Table 9 Weights—downflow, air-cooled, 28-42kW (8-12 ton), semi-hermetic compressors

Dry Weight, Approximate, lb. (kg)

Model Type Model Size: 028-042

Air-Cooled 1780 (809)

Dual-Cool 1930 (877)

Source: DPN000795, Rev. 4

Liebert® DS

™

Page 25

Air-Cooled Systems

HUM

ECS

ECR

FRONT VIEW

LV1

NOTE: Drawing not to scale.

Tolerance on all piping dimensions is ± 1/2" (13mm).

4" (102mm)

BLOWER

OUTLET

All dimensions from rear corner of unit including panels

16-1/16"

(408mm)

35"

(889mm)

LV2 LV3

SECTION A-A

FRONT OF UNIT

16-7/16" (418mm)

86"

(2184mm)

DPN000803 Rev. 4

Figure 13 Primary connection locations—downflow, air-cooled, 28-42kW (8-12 ton), semi-hermetic

compressors with centrifugal fans

Table 10 Piping data—downflow, air-cooled, 28-42kW (8-12 ton), semi-hermetic compressors

Point Description

R Refrigerant Access 63 (1600) 13-13/16 (351) 16-7/16 x 4 (418 x 102)

L1 Liquid Line System 1 79-3/16 (2011) 16-3/4 (425) 1/2" Cu Sweat

L2 Liquid Line System 2 76-1/2 (1943) 16-3/4 (425) 1/2" Cu Sweat

G1 Hot Gas Discharge 1 73-7/8 (1876) 16-3/4 (425) 5/8" Cu Sweat

G2 Hot Gas Discharge 2 70-1/8 (1780) 16-3/4 (425) 5/8" Cu Sweat

HUM Humidifier Supply Line 53-1/2 (1359) 29 (737) 1/4" Cu Sweat

ECS Econ-O-Coil Supply 54-7/8 (1394) 22-9/16 (573) 1-5/8" Cu Sweat

ECR Econ-O-Coil Return 49-3/8 (1254) 30-3/4 (781) 1-5/8" Cu Sweat

E1 Electrical Conn. (High Volt) 55-1/2 (1410) 31-1/4 (794) 2-1/2"

E2 Electrical Conn. (High Volt) 52-7/16 (1332) 31-1/4 (794) 2-1/2"

LV1 Electrical Conn. (Low Volt) 2-1/4 (57) 27 (686) 7/8"

LV2 Electrical Conn. (Low Volt) 2-1/4 (57) 29 (737) 7/8"

LV3 Electrical Conn. (Low Volt) 2-1/4 (57) 31 (787) 7/8"

B Blower Outlet 21-15/16 (558) 18-1/16 (459) 18-3/4 x 16-1/16 (476 x 408)

* Field pitch condensate drain line a minimum of 1/8" (3.2 mm) per foot (305 mm). All units contain a factory-installed condensate trap. Do

not trap external to the unit. Drain line may contain boiling water. Select appropriate drain system materials. The drain line must comply

with all local codes. Piping dimensions shown are connection sizes; field piping sizes may be different depending on distance. Refer to user manual, SL-18825. Source: DPN000803, Rev. 4

Condensate Drain (infrared humidifier or no humidifier)*

Condensate Drain (steam generating humidifier)*

W/ Optional Pump 46 (1168) 29-1/2 (749) 1/2" Cu Sweat

in. (mm)

Connection Size / Opening

in. (mm)

46 (1168) 29-1/2 (749) 3/4" FPT

46 (1168) 29-1/2 (749) 1-1/4" FPT

21 Liebert® DS

™

Page 26

Air-Cooled Systems

39" 991mm

59" (1499mm)

DPN000801 Rev. 2

33"

(838mm)

76"

(1930mm)

26"

(660mm)

85" (2159mm)

Assembled Length

76"

(1930mm)

Assembled

Height

60-3/16"

(1529mm)

37"

(940mm)

39"

(991mm)

Compressor Assembly

Filter & Electric Box Assembly

Blower & Coil Assembly

NOTES: Drawing views are simplified with panels removed to show overall dimensions. See disassembly and handling instructions in installation manual.

Figure 14 Disassembly dimensions—downflow, air-cooled, 28-42kW (8-12 ton), semi-hermetic

compressors with centrifugal fans

Table 11 Component weights—downflow, air-cooled, 28-42kW (8-12 ton), semi-hermetic compressors

Dry Weight, Approximate, Including Panels, lb (kg)

Component

Compressor Assembly 800 (364) 800 (364)

Filter and Electric Box Assembly 210 (96) 210 (96)

Blower and Coil Assembly 770 (350) 920 (418)

Source: DPN000801, Rev. 2

Air-Cooled Dual-Cooled

Liebert® DS

™

Page 27

Air-Cooled Systems

33"

(838mm)

35"

(889mm)

76"

(1930mm)

(51mm)

34"

(864mm)

Shaded area indicates a recommended minimum clearance for component access.

(127mm)

3/4"

(19mm)

Bezels

24-5/8"

(619mm)

Opening

80"

(2032mm)

Second Refrigerant Piping Entrance

AIR INLET OPENING

Opening

Secondary Entrance Low-Volt Connections

Minimum required

for filter replacement

Secondary Entrance High-Volt Connection(s)

TOP VIEW

FRONT VIEW

Notes: Filters are accessible through top of unit only.

Downflow electrical connections can be made from top or bottom of unit.

DPN000925 Rev. 2

Digital scroll compressors

not available on DS 077.

3.6 DIMENSIONS—LIEBERT DS 053-077, DOWNFLOW, AIR-COOLED MODELS

Figure 15 Dimensions—downflow, air-cooled, 53-77kW (15-22 ton), scroll or digital scroll compressors

with centrifugal fans

Table 12 Weights—downflow, air-cooled, 53-77kW (15-22 ton), scroll or digital scroll compressors

Model No. DS 053 DS 070 DS 077 *

Air Cooled 1920 (871) 1970 (894) 2020 (916)

Dual Cool 2100 (953) 2150 (975) 2200 (998)

Air Cooled “A” 98 (2489) 98 (2489) 98 (2489)

Air Cooled “B” 97 (2464) 97 (2464) 97 (2464)

* Digital scroll compressors not available on DS 077 Source: DPN000925, Rev. 2

Dry Weight, lb (kg) Approximate

Dimensions, in (mm)

23 Liebert® DS

™

Page 28

Air-Cooled Systems

ECS

ECR

HUM

FRONT VIEW

LV1

NOTE: Drawing not to scale.

Tolerance on all piping dimensions is ± 1/2" (13mm).

(102mm)

BLOWER

OUTLET

All dimensions from rear corner of unit including panels

16-1/16"

(408mm)

35"

(889mm)

LV2 LV3

SECTION A-A

FRONT OF UNIT

12-3/16" (310mm)

98" (2489mm)

BLOWER

OUTLET

DPN000929 Rev. 4

Digital scroll compressors

not available on DS 077.

Figure 16 Primary connection locations—downflow, air-cooled, 53-77kW (15-22 ton), scroll or digital

scroll compressors with centrifugal fans

Table 13 Piping data—downflow, air-cooled, 53-77kW (15-22 ton), scroll or digital scroll compressors ***

Point Description

R Refrigerant Access 81-3/4 (2076) 14-3/4 (374) 12-3/16 x 4 (310 x 102)

L1 Liquid Line System 1 94-11/16 (2405) 16-3/4 (425) 1/2" / 5/8" Cu Sweat

L2 Liquid Line System 2 91-7/8 (2334) 16-3/4 (425) 1/2" / 5/8" Cu Sweat

G1 Hot Gas Discharge 1 88-3/4 (2254) 16-3/8 (416) 7/8" / 1-1/8" Cu Sweat

G2 Hot Gas Discharge 2 85-9/16 (2173) 16-3/8 (416) 7/8" / 1-1/8" Cu Sweat

HUM Humidifier Supply Line 76-1/2 (1943) 29 (736) 1/4" Cu Sweat

ECS** Econ-O-Coil Supply 78-5/8 (1997) 22-1/4 (565) 2-1/8" Cu Sweat

ECR** Econ-O-Coil Return 72 (1829) 29 (737) 2-1/8" Cu Sweat

E1 Electrical Conn. (High Volt) 78-1/2 (1994) 31-1/8 (790) 2-1/2"

E2 Electrical Conn. (High Volt) 75-3/8 (1915) 31-1/8 (790) 2-1/2"

LV1 Electrical Conn. (Low Volt) 1-7/8 (48) 28-1/2 (724) 7/8"

LV2 Electrical Conn. (Low Volt) 1-7/8 (48) 30-1/4 (768) 7/8"

LV3 Electrical Conn. (Low Volt) 1-7/8 (48) 32 (813) 7/8"

* Field pitch condensate drain line a minimum of 1/8" (3.2 mm) per foot (305 mm). All units contain a factory-installed condensate trap. Do

** Supplied on Dual-Cooling systems only (four-pipe system) *** Digital scroll compressors not available on DS 077. Piping dimensions shown are connection sizes; field piping sizes may be different depending on distance. Refer to user manual, SL-18825. Source: DPN000929, Rev 4

Liebert® DS

in. (mm)

Connection Size / Opening

in. (mm)

53kW (15 ton) / 70& 77kW (20 & 22 ton)

Condensate Drain (infrared humidifier or no humidifier)*

Condensate Drain (steam generating humidifier)*

67-11/16 (1719) 30-1/2 (775) 3/4" FPT

67-11/16 (1719) 30-1/2 (775) 1-1/4" FPT

W/ Optional Pump 67-11/16 (1719) 30-1/2 (775) 1/2" Cu Sweat

Blower Outlet (15 x 15) 23-1/8 (587) 18-1/16 (459) 18-3/4 x 16-1/16 (476 x 408)

Blower Outlet (15 x 11) 27-3/4 (705) 18-1/16 (459) 14-3/4 x 16-1/16 (375 x 408)

Blower Outlet (15 x 15) 50-3/8 (1280) 18-1/16 (459) 18-3/4 x 16-1/16 (476 x 408)

Blower Outlet (15 x 11) 54-3/8 (1381) 18-1/16 (459) 14-3/4 x 16-1/16 (375 x 408)

not trap external to the unit. Drain line may contain boiling water. Select appropriate drain system materials. The drain line must comply with all local codes.

™

Page 29

Air-Cooled Systems

Figure 17 Dimensions—downflow, air-cooled, 53-77kW (15-22 ton), front and/or rear discharge models

with EC fans

Required for Condenser cleanout on Water/Glycol or

Customer Piping and Wiring Connections

1. For primary connection locations see standard submittals DPN000928, DPN000929 or DPN000933. A floor stand at least 9" high is recommended if primary connections locations are to be used.

Secondary Refrigerant Piping Entrance

80" (2032mm)

Opening

24" (610mm)

GLYCOOL/Dual Cool

Minimum required

for filter replacement

Filters are accessible only through top of unit.

(127mm)

35"

(889mm)

33"

(838mm)

Secondary Entrance High-Voltage Connection(s)

AIR INLET OPENING

TOP VIEW

76"

(1930mm)

15-1/8"

(384mm)

29-1/4"

(743mm)

Air Outlet Opening

(51mm)

FRONT VIEW

Dry Weight, lb (kg) Approximate Dimensions, in. (mm)

Compressor Type

Semi-Hermetic

Scroll / Digital

* Digital scroll compressors not available on 077 models Source: 310697, Pg. 2, Rev. 0

Model 53 70 77 * A B

Air-Cooled 2350 (1069) 2400 (1091) 2450 (1114)

Dual Cool 2530 (1150 2580 (1173) 2630 (1196)

Air-Cooled 1920 (873) 1970 (896) 2020 (919)

Dual Cool 2100 (955) 2150 (978) 2200 (1000)

15-1/8"

(384mm)

29-5/8"

(752mm)

3-1/4"

(83mm)

25-5/8"

(619mm)

Opening

3/4"

Secondary Entrance Low-Voltage Connections

Air Outlet Opening

(19mm)

3-1/8"

(79mm)

Shaded area indicates a recommended minimum clearance for component access.

15-1/8"

(384mm)

29-5/8"

(752mm)

3-1/4"

(83mm)

Air Outlet Opening

15-1/8"

(384mm)

29-1/4"

(743mm)

Air Outlet Opening

REAR VIEW

109 (2769) 108 (2743)

34"

(864mm)

310697 Pg. 2, Rev. 0

98 (2489) 97 (2464)

25 Liebert® DS

™

Page 30

Air-Cooled Systems

12-3/16"

(310mm)

FRONT OF UNIT

FRONT VIEW

DPN002182 Rev. 1

SECTION A-A

NOTE: Drawing not to scale. Tolerance on all piping dimensions is ± 1/2" (13mm).

ECS

ECR

LV1 LV2 LV3

All dimensions from rear corner of unit including panels

35"

(889mm)

BLOWER OUTLET

HUM

L1 L2 G1

4" (102mm)

98" (2489mm)

Digital scroll compressors not

available on 077 models.

Figure 18 Primary connection locations—downflow air-cooled 53-77kW (15-22 ton), scroll or digital

scroll compressors with EC fans, front, rear or bottom discharge

Table 14 Piping details—downflow air-cooled 53-77kW (15-22 ton) with EC fans, scroll or digital scroll

Point Description

R Refrigerant Access 81-3/4 (2076) 14-3/4 (374) 12-3/16x4 (310x102)

L1 Liquid Line System 1 94-11/16 (2405) 16-3/4 (425) 1/2 / 5/8 Cu Sweat

L2 Liquid Line System 2 91-7/8 (2334) 16-3/4 (425) 1/2 / 5/8 Cu Sweat

G1 Hot Gas Discharge 1 88-3/4 (2254) 16-3/8 (416) 7/8 / 1-1/8 Cu Sweat

G2 Hot Gas Discharge 2 85-9/16 (2173) 16-3/8 (416) 7/8 / 1-1/8 Cu Sweat

HUM Humidifier Supply Line 76-1/2 (1943) 29 (736) 1/4 Cu Sweat

ECS** Econ-O-Coil Supply (DS Only) 78-5/8 (1997) 22-1/4 (565) 2-1/8 Cu Sweat

ECR** Econ-O-Coil Return (DS Only) 73-15/16 (1862) 26-9/16 (675) 2-1/8 Cu Sweat

E1 Electrical Conn. (High Volt) 78-1/2 (1994) 31-1/8 (790) 2-1/2

E2 Electrical Conn. (High Volt) 75-3/8 (1915) 31-1/8 (790) 2-1/2

LV1 Electrical Conn. (Low Volt) 2 (51) 29 (737) 7/8

LV2 Electrical Conn. (Low Volt) 2 (51) 30-7/8 (784) 7/8

LV3 Electrical Conn. (Low Volt) 2 (51) 32 (813) 7/8

B1 Blower Outlet 4-1/2 (114) 33 (838) 58-3/8x30 (1483x762)

* Field pitch condensate drain line a minimum of 1/8" (3.2 mm) per foot (305 mm). All units contain a factory-installed condensate trap. Do

not trap external to the unit. Drain line may contain boiling water. Select appropriate drain system materials. The drain line must comply

with all local codes. ** Supplied on Dual-Cooling systems only (four-pipe system) *** Digital scroll compressors not available on DS 077 Piping dimensions shown are connection sizes; field piping sizes may be different depending on distance. Refer to user manual, SL-18825. Source: DPN002182, Rev. 1

Liebert® DS

compressors ***

Condensate Drain (Infrared Humidifier or No Humidifier)*

W/ Optional Pump 68-3/8 (1737) 31-3/8 (797) 1/2 Cu Sweat

™

in. (mm)

Connection Size / Opening

53kW (15 ton)/ 70 & 77kW (20 & 22 ton)

68-3/8 (1737) 31-3/8 (797) 3/4 FPT

in. (mm)

Page 31

Air-Cooled Systems

Digital scroll compressors

not available on DS 077.

Figure 19 Disassembly dimensions—downflow, air-cooled, 53-77kW (15-22 ton), scroll or digital scroll

compressors

Filter & Electric Box Assembly

Forward curved blowers shown. DA units only available with EC blowers, optional on DS units.

Compressor Assembly

Blower & Coil Assembly

76"

(1930mm)

33"

(838mm)

DS053-DS077 = 15" (381mm) DA080,DA085 = 17" (432mm)

Assembled Length

97" (2464mm)

82" (2083mm)

NOTES: Drawing views are simplified with panels removed to show overall dimensions. See disassembly and handling instructions in installation manual.

39"

(991mm)

76"

(1930mm)

Assembled

Height

59-7/16"

(1509mm)

37"

(940mm)

DPN000927 Rev. 4

Table 15 Component weights—downflow, air-cooled, 53-77kW (15-22 ton), scroll or digital scroll

compressors *

Dry Weight, Approximate, Including Panels, lb (kg)

Component

Compressor Assembly 540 (246) 540 (246)

Filter and Electric Box Assembly 250 (114) 250 (114)

Blower and Coil Assembly 1230 (560) 1410 (641)

* Digital scroll compressors not available on DS 077 Source: DPN00927, Rev. 4

Air-Cooled Dual-Cool

27 Liebert® DS

™

Page 32

Air-Cooled Systems

33"

(838mm)

35"

(889mm)

109" (2769mm)

76"

(1930mm)

(51mm)

108" (2743mm)

34"

(864mm)

Shaded area indicates a recommended minimum clearance be provided for component access.

(125mm)

3/4"

(19mm)

24-5/8"

(625mm)

Opening

80"

(2032mm)

Second Refrigerant Piping Entrance

AIR INLET OPENING

Opening

Bezels

Secondary Entrance Low-Volt Connections

Minimum required

for filter replacement

Secondary Entrance High-Volt Connection(s)

TOP VIEW

FRONT VIEW

Notes: Filters are accessible through top of unit only.

Downflow electrical connections can be made from top or bottom of unit.

DPN000924 Rev. 3

Figure 20 Dimensions—downflow, air-cooled, 53-77kW (15-22 ton) with centrifugal fans, semi-hermetic

compressors with centrifugal fans

Table 16 Weights—downflow, air-cooled, 53-77kW (15-22 ton), semi-hermetic compressors

Model Type

Air-Cooled 2350 (1069) 2400 (1091) 2450 (1114)

Dual-Cool 2530 (1150) 2580 (1173) 2630 (1196)

Source: DPN000924, Rev. 3

Dry Weight, Approximate, lb. (kg)

Model Size

053 070 077

Liebert® DS

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Page 33

Air-Cooled Systems

ECS

ECR

HUM

FRONT VIEW

LV1

NOTE: Drawing not to scale.

Tolerance on all piping dimensions is ± 1/2" (13mm).

BLOWER

OUTLET

All dimensions from rear corner of unit including panels

LV2 LV3

SECTION A-A

FRONT OF UNIT

BLOWER

OUTLET

16-1/16"

(408mm)

16-7/16" (418mm)

4" (102mm)

109" (2769mm)

35"

(889mm)

DPN000928 Rev. 4

Figure 21 Primary connection locations—downflow, air-cooled, 53-77kW (15-22 ton), semi-hermetic

compressors with centrifugal fans

Table 17 Piping data—downflow, air-cooled, 53-77kW (15-22 ton), semi-hermetic compressors

Point Description

R Refrigerant Access 82-3/4 (2102) 13-7/8 (352) 16-7/16 x 4 (418 x 102)

L1 Liquid Line System 1 97 (2464) 16-7/8 (428) 1/2" / 5/8" Cu Sweat

L2 Liquid Line System 2 93-5/16 (2370) 16-7/8 (428) 1/2" / 5/8" Cu Sweat

G1 Hot Gas Discharge 1 90-5/8 (2302) 16-5/8 (422) 7/8" / 1-1/8" Cu Sweat

G2 Hot Gas Discharge 2 88 (2235) 16-5/8 (422) 7/8" / 1-1/8" Cu Sweat

HUM Humidifier Supply Line 76-1/2 (1943) 29 (736) 1/4" Cu Sweat

ECS** Econ-O-Coil Supply 78-5/8 (1997) 22-1/4 (565) 2-1/8" Cu Sweat

ECR** Econ-O-Coil Return 72 (1829) 29 (737) 2-1/8" Cu Sweat

E1 Electrical Conn. (High Volt) 78-1/2 (1994) 31-1/8 (790) 2-1/2"

E2 Electrical Conn. (High Volt) 75-3/8 (1915) 31-1/8 (790) 2-1/2"

LV1 Electrical Conn. (Low Volt) 1-7/8 (48) 28-1/2 (724) 7/8"

LV2 Electrical Conn. (Low Volt) 1-7/8 (48) 30-1/4 (768) 7/8"

LV3 Electrical Conn. (Low Volt) 1-7/8 (48) 32 (813) 7/8"

* Field pitch condensate drain line a minimum of 1/8" (3.2 mm) per foot (305 mm). All units contain a factory-installed condensate trap. Do

not trap external to the unit. Drain line may contain boiling water. Select appropriate drain system materials. The drain line must comply

with all local codes. ** Supplied on Dual-Cooling Systems only (four-pipe system) Piping dimensions shown are connection sizes; field piping sizes may be different depending on distance. Refer to user manual, SL-18825. Source: DPN000928, Rev. 4

in. (mm)

Connection Size / Opening

in. (mm)

53kW (15 tons) / 70 & 77kW (20 & 22 tons)

Condensate Drain (infrared humidifier or no humidifier) *

Condensate Drain (steam generating humidifier)*

67-11/16 (1719) 30-1/2 (775) 3/4" FPT

67-11/16 (1719) 30-1/2 (775) 1-1/4" FPT

W/ Optional Pump 67-11/16 (1719) 30-1/2 (775) 1/2" Cu Sweat

Blower Outlet (15 x 15) 23-1/8 (587) 18-1/16 (459) 18-3/4 x 16-1/16 (476 x 408)

Blower Outlet (15 x 11) 27-3/4 (705) 18-1/16 (459) 14-3/4 x 16-1/16 (375 x 408)

Blower Outlet (15 x 15) 50-3/8 (1280) 18-1/16 (459) 18-3/4 x 16-1/16 (476 x 408)

Blower Outlet (15 x 11) 54-3/8 (1381) 18-1/16 (459) 14-3/4 x 16-1/16 (375 x 408)

29 Liebert® DS

™

Page 34

Air-Cooled Systems

16-7/16"

(418mm)

FRONT OF UNIT

FRONT VIEW

DPN002179 Rev. 0

SECTION A-A

NOTE: Drawing not to scale. Tolerance on all piping dimensions is ± 1/2" (13mm).

ECS ECR

LV1 LV2 LV3

All dimensions from rear corner of unit including panels

35"

(889mm)

BLOWER OUTLET

HUM

L2 G1 G2

4" (102mm)

109" (2769mm)

Figure 22 Primary connection locations—downflow, air-cooled 53-77kW (15-22 ton), semi-hermetic

compressors with EC fans, front, rear or bottom discharge

Table 18 Piping details—downflow, air-cooled 53-77kW (15-22 ton) with EC fans, semi-hermetic

Point Description

G1 Hot Gas Discharge 1 90-5/8 (2302) 16-5/8 (422) 7/8 / 1-1/8 Cu Sweat

G2 Hot Gas Discharge 2 88 (2235) 16-5/8 (422) 7/8 / 1-1/8 Cu Sweat

HUM Humidifier Supply Line 76-1/2 (1943) 29 (736) 1/4 Cu Sweat

ECS** Econ-O-Coil Supply 78-5/8 (1997) 22-1/4 (565) 2-1/8 Cu Sweat

ECR** Econ-O-Coil Return 73-15/16 (1862) 26-9/16 (675) 2-1/8 Cu Sweat

E1 Electrical Conn. (High Volt) 78-1/2 (1994) 31-1/8 (790) 2-1/2

E2 Electrical Conn. (High Volt) 75-3/8 (1915) 31-1/8 (790) 2-1/2

LV1 Electrical Conn. (Low Volt) 2 (51) 29 (737) 7/8

LV2 Electrical Conn. (Low Volt) 2 (51) 30-7/8 (784) 7/8

LV3 Electrical Conn. (Low Volt) 2 (51) 32 (813) 7/8

B1 Blower Outlet 4-1/2 (114) 33 (838) 58-3/8 x 30 (1483x762)

* Field pitch condensate drain line a minimum of 1/8" (3.2 mm) per foot (305 mm). All units contain a factory-installed condensate trap. Do

** Supplied on Dual-Cooling systems only (four-pipe system) Piping dimensions shown are connection sizes; field piping sizes may be different depending on distance. Refer to user manual, SL-18825. Source: DPN002179, Rev. 0

Liebert® DS

compressors

in. (mm)

R Refrigerant Access 82-3/4 (2102) 13-7/8 (352) 16-7/16 x 4 (4181x102)

L1 Liquid Line System 1 97 (2464) 16-7/8 (428) 1/2 / 5/8 Cu Sweat

L2 Liquid Line System 2 93-5/16 (2370) 16-7/8 (428) 1/2 / 5/8 Cu Sweat

Condensate Drain (Infrared Humidifier or No Humidifier)*

68-3/8 (1737) 31-3/8 (797) 3/4 FPT

W/ Optional Pump 68-3/8 (1737) 31-3/8 (797) 1/2 Cu Sweat

in. (mm)

Connection Size / Opening

in. (mm)

53kW (15 ton) /70 & 77kw (20 & 22 ton)

not trap external to the unit. Drain line may contain boiling water. Select appropriate drain system materials. The drain line must comply with all local codes.

™

Page 35

Air-Cooled Systems

Figure 23 Disassembly dimensions—downflow, air-cooled, 53-77kW (15-22 ton), semi-hermetic

compressors with centrifugal fans

Filter & Electric Box Assembly

39"

(991mm)

Compressor Assembly

Blower & Coil Assembly

76"

(1930mm)

Assembled

Height

76"

(1930mm)

59-7/16"

(1509mm)

37"

(940mm)

33"

(838mm)

26"

(660mm)

82" (2083mm)

108" (2743mm)

Assembled Length

NOTES: Drawing views are simplified with panels removed to show overall dimensions. See disassembly and handling instructions in installation manual.

DPN000926 Rev. 4

Table 19 Component weights—downflow, air-cooled, 53-77kW (15-22 ton), semi-hermetic compressors

Dry Weight, Approximate, Including Panels, lb (kg)

Component

Compressor Assembly 970 (441) 970 (441)

Filter and Electric Box Assembly 250 (114) 250 (114)

Blower and Coil Assembly 1230 (560) 1410 (641)

Source: DPN000926, Rev. 4

Air-Cooled Dual-Cool

31 Liebert® DS

™

Page 36

Air-Cooled Systems

(127mm)

Notes: Filters are accessible through top of unit only. Downflow electrical connections can be made from top or bottom of unit.

TOP VIEW

AIR INLET OPENING

Shaded area indicates a recommended minimum clearance be provided for component access.

24-3/8"

(619mm)

Opening

3/4"

(19mm)

Bezels

Secondary Entrance High-Volt Connection(s)

76"

(1930mm)

FRONT VIEW

DPN0001012 Rev. 4

34" (864mm)

131" (3327mm)

132" (3353mm)

35"

(889mm)

Secondary Refrigerant Piping Entrance

Secondary Entrance

Low-Volt Connections

102-13/16"

(2611mm) Opening

33"

(838mm)

Minimum required for filter replacement

Digital scroll compressors not available on DS 105.

3.7 DIMENSIONS—LIEBERT DS 105, DOWNFLOW, AIR-COOLED MODELS

Figure 24 Dimensions—downflow, air-cooled, 105kW (30 ton), standard scroll and semi-hermetic

compressors with centrifugal fans

Table 20 Weights—downflow, air-cooled, 105kW (30 ton), standard scroll and semi-hermetic

Compressor Type

Semi-Hermetic Compressors

Scroll Compressors *

* Digital scroll compressors not available on DS 105 Source: DPN001012, Rev. 4

compressors

Cooling Type

Air-Cooled 3040 (1382)

Dual-Cool 3400 (1545)

Air-Cooled 2920 (1327)

Dual-Cool 3280 (1491)

Forward-Curved Fans

Weight, lb. (kg)

Liebert® DS

™

Page 37

Figure 25 Primary connection locations—downflow, air-cooled, 105kW (30 ton), standard scroll and

ECS

ECR

HUM

L1 L2

G1 G2

FRONT VIEW

LV1

NOTE: Drawing not to scale.

Tolerance on all piping dimensions is ± 1/2" (13mm).

4" (102mm)

BLOWER

OUTLET

All dimensions from rear corner of unit including panels

35"

(889mm)

LV2 LV3

SECTION A-A

FRONT OF UNIT

16-7/16" (418mm)

131" (3327mm)

BLOWER

OUTLET

BLOWER

OUTLET

15-11/16"

(398mm)

DPN001014 Rev. 3

Digital scroll compressors not available on 105 models.

semi-hermetic compressors with centrifugal fans

Table 21 Piping data—downflow, air-cooled, 105kW (30 ton), standard scroll*** and semi-hermetic

compressors

Point Description

R Refrigerant Access 109 (2769) 15-3/4 (400) 16-7/16 x 4 (418 x 102)

L1 Liquid Line System 1 121-3/4 (3092) 16-3/4 (425) 5/8" Cu Sweat

L2 Liquid Line System 2 118-1/8 (3000) 16-3/4 (425) 5/8" Cu Sweat

G1 Hot Gas Discharge 1 118-1/4 (3004) 14-1/4 (362) 1-1/8" Cu Sweat

G2 Hot Gas Discharge 2 115-5/8 (2937) 14-1/4 (362) 1-1/8" Cu Sweat

Condensate Drain (infrared humidifier or no humidifier)*

HUM Humidifier Supply Line 102-3/4 (2610) 31-3/4 (806) 1/4" Cu Sweat

ECS** Econ-O-Coil Supply 101-7/8 (2588) 29 (737) 2-5/8" Cu Sweat

ECR** Econ-O-Coil Return 94-9/16 (2402) 29 (737) 2-5/8" Cu Sweat

E1 Electrical Conn. (High Volt) 98-1/8 (2492) 31-1/4 (794) 2-1/2"

E2 Electrical Conn. (High Volt) 91 (2311) 31-1/4 (794) 2-1/2"

LV1 Electrical Conn. (Low Volt) 2 (51) 28-1/4 (718) 7/8"

LV2 Electrical Conn. (Low Volt) 2 (51) 30-1/4 (768) 7/8"

LV3 Electrical Conn. (Low Volt) 2 (51) 32 (813) 7/8"

B1 Blower Outlet 27-7/8 (708) 18 (457) 14-1/2 x 15-11/16 (368 x 398)

B2 Blower Outlet 52-1/16 (1322) 18 (457) 14-1/2 x 15-11/16 (368 x 398)

B3 Blower Outlet 76-1/4 (1937) 18 (457) 14-1/2 x 15-11/16 (368 x 398)

* Field pitch condensate drain line a minimum of 1/8" (3.2 mm) per foot (305 mm). All units contain a factory-installed condensate trap. Do not

trap external to the unit. Drain line may contain boiling water. Select appropriate drain system materials. The drain line must comply with all local codes.

** Supplied on

** Digital scroll compressors not available on DS 105

* Piping dimensions shown are connection sizes; field piping sizes may be different depending on distance. Refer to user manual, SL-18825.

Source: DPN001014, Rev. 3

Condensate Drain (steam generating humidifier)*

Dual-Cooling systems only (four-pipe system)

in. (mm)

Connection Size / Opening

83-13/16 (2129) 30 (762) 3/4" FPT

83-13/16 (2129) 30 (762) 1-1/4" FPT

W/ Optional Pump 83-13/16 (2129) 30 (762) 1/2" Cu Sweat

33 Liebert® DS

Air-Cooled Systems

in. (mm)

™

Page 38

Air-Cooled Systems

Customer Piping and Wiring Connections

1. For primary connection locations see standard submittals DPN001014 or DPN001015. A floor stand at least 9" high is recommended if primary connections locations are to be used.

Secondary Entrance High-Voltage Connection(s)

Shaded area indicates a recommended minimum clearance for component access.

Secondary Refrigerant Piping Entrance

Secondary Entrance Low-Voltage Connections

TOP VIEW

FRONT VIEW

310697 Pg. 3, Rev. 0

Air Outlet Opening

3/4"

(19mm)

25-5/8"

(649mm)

24-7/8"

(649mm)

28-1/4"

(718mm)

16-1/8"

(410mm)

16-1/8"

(410mm)

16-1/8"

(410mm)

24-3/8"

(619mm)

Opening

102-7/8" (2611mm)

Opening

132" (3353mm)

30-7/8"

(783mm)

57-1/2"

(1459mm)

131" (3326mm)

3/4" (19mm)

33"

(838mm)

35"

(889mm)

(127mm)

34"

(864mm)

Required for Condenser cleanout on Water/Glycol or GLYCOOL/Dual Cool

Downflow electrical connections can be made from top or bottom of unit

24" (610mm)

Minimum required

for filter replacement

Filters are accessible only through top of unit.

AIR INLET OPENING

76"

(1930mm)

Figure 26 Dimensions—downflow, air-cooled, 105kW (30 ton), front discharge models with EC fans

Dry Weight, lb (kg) Approximate

Model 105

Air-Cooled

2774 (1258)

Dual Cool 3134 (1422)

Air-Cooled

2654 (1204)

Dual Cool 3014 (1367)

Compressor Type

Semi-Hermetic

Scroll

Digital scroll compressors not available on DS 105 Source: 310697, Pg. 3, Rev. 0

Liebert® DS

™

Page 39

Air-Cooled Systems

16-7/16"

(418mm)

FRONT OF UNIT

FRONT VIEW

DPN002154 Rev. 0

SECTION A-A

NOTE: Drawing not to scale. Tolerance on all piping dimensions is ± 1/2" (13mm).

ECS

ECR

LV1 LV2 LV3

All dimensions from rear corner of unit including panels

35"

(889mm)

BLOWER OUTLET

HUM

G1 G2

4" (102mm)

132" (3353mm)

Digital scroll compressors not available on 105 models.

Figure 27 Primary connection locations—downflow, air-cooled 105kW (30 ton), standard scroll and

semi-hermetic compressors with EC fans, front, rear or bottom discharge

Table 22 Piping data—downflow, air-cooled 105kW (30 ton) with EC fans, standard scroll*** and

Point Description

R Refrigerant Access 109 (2769) 15-3/4 (400) 16-7/16 x 4 (418 x 102)

L1 Liquid Line System 1 121-3/4 (3092) 16-3/4 (425) 5/8 Cu Sweat

L2 Liquid Line System 2 118-1/8 (3000) 16-3/4 (425) 5/8 Cu Sweat

G1 Hot Gas Discharge 1 118-1/4 (3004) 14-1/4 (362) 1-1/8 Cu Sweat

G2 Hot Gas Discharge 2 115-5/8 (2937) 14-1/4 (362) 1-1/8 Cu Sweat

HUM Humidifier Supply Line 85-5/16 (2167) 32-1/2 (825) 1/4 Cu Sweat

ECS ** Econ-O-Coil Supply 101-7/8 (2588) 29 (737) 2-5/8 Cu Sweat

ECR ** Econ-O-Coil Return 94-9/16 (2402) 29 (737) 2-5/8 Cu Sweat

E1 Electrical Conn. (High Volt) 98-1/8 (2492) 31 (788) 2-1/2

E2 Electrical Conn. (High Volt) 91 (2311) 31 (788) 2-1/2

LV1 Electrical Conn. (Low Volt) 2 (51) 29 (737) 7/8

LV2 Electrical Conn. (Low Volt) 2 (51) 30-7/8 (784) 7/8

LV3 Electrical Conn. (Low Volt) 2 (51) 32 (813) 7/8

B1 Blower Outlet

* Field pitch condensate drain line a minimum of 1/8" (3.2 mm) per foot (305 mm). All units contain a factory-installed condensate trap. Do

not trap external to the unit. Drain line may contain boiling water. Select appropriate drain system materials. The drain line must comply

with all local codes. ** Supplied on Dual-Cooling systems only (four-pipe system) *

** Digital scroll compressors not available on DS 105

Piping dimensions shown are connection sizes; field piping sizes may be different depending on distance. Refer to user manual, SL-18825. Source: DPN002154, Rev. 0

semi-hermetic compressors

in. (mm)

Condensate Drain (Infrared Humidifier or No Humidifier)*

87-3/8 (2220) 31 (787) 3/4 FPT

W/ Optional Pump 83-13/16 (2129) 30 (762) 1/2 Cu Sweat

4-1/2 (114) 33 (838)

in. (mm)

Connection Size / Opening

in. (mm)

77-3/8 x 30 (1965 x 762)

35 Liebert® DS

™

Page 40

Air-Cooled Systems

DPN001058 Rev. 2

NOTES: Drawing views are simplified with panels removed to show overall dimensions. See disassembly and handling instructions in installation manual.

Filter & Electric Box Assembly

Compressor Assembly

Blower & Coil Assembly

39"

(991mm)

41-11/16"

(1059mm)

76"

(1930mm)

Assembled Height

59-7/16"

(1510mm)

37"

(940mm)

105" (2667mm)

131" (3327mm)

Assembled Length

76"

(1930mm)

26"

(660mm)

33"

(838mm)

Digital scroll compressors not

available on 105 models.

Figure 28 Disassembly dimensions—downflow, air-cooled, 105kW (30 ton), standard scroll compressors

with centrifugal

Table 23 Component weights—downflow, air-cooled, 105kW (30 ton), standard scroll compressors *

Dry Weight, Approximate

Including Panels, lb (kg)

Forward-Curved Fans

Air-Cooled Dual-Cool

Component

Compressor Assembly 830 (377) 830 (377)

Filter and Electric Box Assembly 270 (123) 270 (123)

Blower and Coil Assembly 1820 (827) 2180 (991)

* Digital scroll compressors not available on DS 105 Source: DPN001058, Rev. 2

Liebert® DS

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Page 41

Air-Cooled Systems

Filter & Electric Box Assembly

Compressor Assembly

Blower & Coil

Assembly

39"

(991mm)

76"

(1930mm)

Assembled

Height

37"

(940mm)

33"

(838mm)

76"

(1930mm)

NOTES: Drawing views are simplified with panels removed to show overall dimensions.

See disassembly and handling instructions in installation manual.

59-7/16”

(1509mm)

26”

(660mm)

105" (2667mm)

131" (3327mm)

Assembled Length

41 11/16"

(1059mm)

DPN001057 Rev. 2

Figure 29 Disassembly dimensions—downflow, air-cooled, 105kW (30 ton), semi-hermetic compressors

with centrifugal

Table 24 Component weights—downflow, air-cooled, 105kW (30 ton), semi-hermetic compressors

Dry Weight, Approximate,

Including Panels, lb (kg)

Forward-Curved Fans

Component

Compressor Assembly 950 (432) 950 (432)

Air-Cooled Dual-Cool

Filter and Electric Box Assembly 270 (123) 270 (123)

Blower and Coil Assembly 1820 (827) 2180 (991)

Source: DPN001057, Rev. 2

37 Liebert® DS

™

Page 42

Air-Cooled Systems

3.8 DIMENSIONS—LIEBERT DS 028-042, UPFLOW, AIR-COOLED MODELS

Figure 30 Dimensions—upflow, air-cooled, 28-42kW (8-12 ton), scroll or digital scroll compressors with

centrifugal fans

Alternate Refrigerant Piping Entrance

Note: Front air return unit shown. For

33"

(838mm)

35"

(889mm)

High-Volt Connection(s)

1-1/2"

(38mm)

TOP VIEW

73"

(1854mm)

Low-Volt Connection(s)

rear return unit, in addition to front service area shown, also include 25" (635mm) on one side of unit for access to rear return filter box. See DPN001196.

3/4" (19mm) Bezels

Minimum required

for blower replacement

76"

(1930mm)

34"

(864mm)

Shaded area indicates a

(51mm)

72" (1829mm)

FRONT VIEW

recommended minimum clearance for component access.

DPN001163 Rev. 2

Table 25 Weights—upflow, air-cooled, 28-42kW (8-12 ton), scroll or digital scroll compressors

Dry Weight, Approximate, lb. (kg)

Model Type Forward-Curved Fans

Air-Cooled 1520 (689)

Dual-Cool 1670 (758)

Source: DPN001163, Rev. 2

24"

(610mm)

Liebert® DS

™

Page 43

Air-Cooled Systems

DPN001119 Rev. 2

LV1

LV2 LV3

BLOWER

OUTLET

L1 L2 G1G2

FRONT OF UNIT

NOTES:

1. Drawing not to scale.

2. Tolerance on all piping dimensions is ± 1/2" (13mm). Field routed alternatives for refrigerant gas and liquid line connection points. See submittal page DPN001120 for blower outlet and deck dimensional data.

All dimensions from rear corner of unit including panels

73" (1854mm)

LEFT SIDE SECTION

35"

(889mm)

Factory Location

FRONT SECTION

TOP VIEW

CGD*

(152mm)

17-3/16"

(437mm)

3-7/8"

(98mm)

14-1/4"

(362mm)

15-7/8"

(403mm)

4-1/8" (105mm)

10-1/8"

(257mm)

HUM

CPD

ECR ECS

11-1/8"

(283mm)

4" (102mm)

17-1/16"

(434mm)

(Left Front Panel Not Shown)

Figure 31 Primary connection locations—upflow, air-cooled, 28-42kW (8-12 ton), scroll or digital scroll

compressors with centrifugal fans

Table 26 Piping data—upflow, air-cooled, 28-42kW (8-12 ton), scroll or digital scroll compressors

Point Description

R1 Refrigerant Access (Top) 60-1/2 (1537) 1-7/8" (48mm) 10-1/8 x 4-1/8 (257 x 105)

R2 Refrigerant Access (Bottom) 59-3/8" (1508mm) 14-3/4" (375mm) 11-1/8 x 4 (283 x 102)

L1 Liquid Line System 1 70" (1778mm) 16-3/4 (425) 1/2" Cu Sweat

L2 Liquid Line System 2 67-5/8" (1718mm) 16-3/4 (425) 1/2" Cu Sweat

G1 Hot Gas Discharge 1 65-3/8" (1661mm) 16-5/8 (422) 5/8" Cu Sweat

G2 Hot Gas Discharge 2 63" (1600mm) 16-5/8 (422) 5/8" Cu Sweat

R3 Refrigerant Access (Side) — — 6 x 17-3/16 (152 x 437)

CGD* Condensate Gravity Drain — — 3/4" FPT

CPD Condensate Pump Discharge (Opt) 56-1/4 (1429) 11-1/8 (283) 1/2" Cu Sweat

HUM Humidifier Supply Line 56-1/4 (1429) 9-1/8 (233) 1/4" Cu Sweat

ECS** Econ-O-Coil Supply 56 (1423) 7-5/16 (186) 1-5/8" Cu Sweat

ECR** Econ-O-Coil Return 56 (1423) 4-1/2 (114) 1-5/8" Cu Sweat

E1 Electrical Conn. (High Volt) 52-3/8 (1330) 30 (762) 2-1/2"

E2 Electrical Conn. (High Volt) 46-7/8 (1191) 30 (762) 2-1/2"

LV1 Electrical Conn. (Low Volt) 19-1/2 (495) 29-1/16 (738) 7/8"

LV2 Electrical Conn. (Low Volt) 19-1/2 (495) 30-1/2 (775) 7/8"

LV3 Electrical Conn. (Low Volt) 19-1/2 (495) 31-15/16 (811) 7/8"

* Field pitch condensate drain line a minimum of 1/8" (3.2 mm) per foot (305 mm). All units contain a factory-installed condensate trap.

Do not trap external to the unit. Drain line may contain boiling water. Select appropriate drain system materials. The drain line must

comply with all local codes. ** Supplied on Dual-Cool systems only (four-pipe system) Piping dimensions shown are connection sizes; field piping sizes may be different depending on distance. Refer to user manual, SL-

18825.

Source: DPN001119, Rev. 2

in. (mm)

Connection Size / Opening

in. (mm)

39 Liebert® DS

™

Page 44

Air-Cooled Systems

NOTES: Drawing views are simplified with panels removed to show overall dimensions.

See disassembly and handling instructions in installation manual.

31-1/4"

(794mm)

76" (1930mm)

Assembled

Height

45-13/16"

(1163mm)

DPN001172 Rev. 1

59" (1499mm)

72"

(1829mm)

13"

(330mm)

33"

(838mm)

76"

(1930mm)

Compressor Assembly

Filter & Coil Assembly

Blower & Electric Box Assembly

Assembled Length

Figure 32 Disassembly dimensions—upflow, air-cooled, 28-42kW (8-12 ton), scroll or digital scroll

compressors with centrifugal fans

Table 27 Component weights—upflow, air-cooled, 28-42kW (8-12 ton), scroll or digital scroll

compressors

Dry Weight, Approximate, Including Panels, lb (kg)

Component

Compressor Assembly 490 (223) 490 (223)

Blower and Electric Box Assembly (Forward-Curved Fans)

Filter and Coil Assembly 520 (236) 670 (304)

Source: DPN001172, Rev. 1

Liebert® DS

™

Air-Cooled Dual-Cool

510 (231) 510 (231)

Page 45

Air-Cooled Systems

Figure 33 Dimensions—upflow, air-cooled, 28-42kW (8-12 ton), semi-hermetic compressors with

centrifugal fans

Alternate Refrigerant Piping Entrance

Note: Front air return unit shown. For rear return unit, in addition to front service

33"

(838mm)

35"

(889mm)

High-Volt Connection(s)

1-1/2"

(38mm)

TOP VIEW

86" (2184mm)

Low-Volt

Connection(s)

area shown, also include 25" (635mm) on one side of unit for access to rear return filter box. See DPN001196.

3/4"

(19mm)

Bezels

Minimum required

for blower replacement

24"

(610mm)

76"

(1930mm)

Shaded area indicates a recommended minimum clearance for component access.

(51mm)

85" (2159mm)

FRONT VIEW

DPN001162 Rev. 2

Table 28 Weights—upflow, air-cooled, 28-42kW (8-12 ton), semi-hermetic compressors

Dry Weight, Approximate, lb (kg)

Model Type Forward-Curved Fans

Air-Cooled 1830 (830)

Dual-Cool 1980 (898)

Source: DPN001162, Rev. 2

34"

(864mm)

41 Liebert® DS

™

Page 46

Air-Cooled Systems

All dimensions from rear corner of unit including panels

Blower Outlet

22-1/2"

(572mm)

NOTES:

1. Drawing not to scale.

2. Tolerance on all piping dimensions is ± 1/2" (13mm). Field-routed alternatives for refrigerant gas and liquid line connection points. See submittal page DPN001120 for blower outlet and deck dimensional data.

16-7/16"

(418mm)

(102mm)

35"

(889mm)

15-3/16"

(386mm)

86" (2184mm)

TOP VIEW Front of Unit

20-1/16"

(509mm)

Factory Location

FRONT SECTION VIEW

(Left Front Panel Not Shown)

14-1/4"

(362mm)

(152mm)

17-3/16"

(437mm)

3-7/8"

(98mm)

15-7/8"

(403mm)

LEFT SIDE SECTION VIEW

DPN001114 Rev. 2

CGD *

ECR ECS

HUM

CPD

LV1 LV2

LV3

G1L2L1 G2

333

Figure 34 Primary connection locations—upflow, air-cooled, 28-42kW (8-12 ton), semi-hermetic

compressors with centrifugal fans

Table 29 Piping data—upflow, air-cooled, 28-42kW (8-12 ton), semi-hermetic compressors

Point Description

R1 Refrigerant Access (Top) 60-11/16 (1542) 1-7/8 (48) 22-1/2 x 15-3/16 (572 x 386)

R2 Refrigerant Access (Bottom) 63 (1600) 13-13/16 (351) 16-7/16 x 4 (418 x 102)

L1 Liquid Line System 1 79-3/16 (2011) 16-3/4 (425) 1/2" Cu Sweat

L2 Liquid Line System 2 76-1/2 (1943) 16-3/4 (425) 1/2" Cu Sweat

G1 Hot Gas Discharge 1 73-7/8 (1876) 16-3/4 (425) 5/8" Cu Sweat

G2 Hot Gas Discharge 2 70-1/8 (1780) 16-3/4 (425) 5/8" Cu Sweat

R3 Refrigerant Access (Side) — — 6 x 17-3/16 (152 x 437)

CGD* Condensate Gravity Drain — — 3/4" FPT

CPD Condensate Pump Discharge (Opt) 56-1/4 (1429) 11-1/8 (283) 1/2" Cu Sweat

HUM Humidifier Supply Line 56-1/4 (1429) 9-1/8 (233) 1/4" Cu Sweat

ECS** Econ-O-Coil Supply 56 (1423) 7-5/16 (186) 1-5/8" Cu Sweat

ECR** Econ-O-Coil Return 56 (1423) 4-1/2 (114) 1-5/8" Cu Sweat

E1 Electrical Conn. (High Volt) 52-3/8 (1330) 30" (762mm) 2-1/2"

E2 Electrical Conn. (High Volt) 46-7/8 (1191) 30" (762mm) 2-1/2"

LV1 Electrical Conn. (Low Volt) 19-1/2 (495) 29-1/16 (738) 7/8"

LV2 Electrical Conn. (Low Volt) 19-1/2 (495) 30-1/2 (775) 7/8"

LV3 Electrical Conn. (Low Volt) 19-1/2 (495) 31-15/16 (811) 7/8"

* Field pitch condensate drain line a minimum of 1/8" (3.2 mm) per foot (305 mm). All units contain a factory-installed condensate trap. Do

not trap external to the unit. Drain line may contain boiling water. Select appropriate drain system materials. The drain line must comply

with all local codes. ** Supplied on Dual-Cool systems only (four-pipe system) Piping dimensions shown are connection sizes; field piping sizes may be different depending on distance. Refer to user manual, SL-18825. Source: DPN001114, Rev. 2

Liebert® DS

™

in. (mm)

Connection Size / Opening

in. (mm)

Page 47

Air-Cooled Systems

DPN001171 Rev. 1

31-1/4"

(794mm)

45-13/16"

(1163mm)

76"

(1930mm)

Assembled\

Height

85" (2159mm)

Assembled Length

59"

(1499mm)

26"

(660mm)

NOTES: Drawing views are simplified with panels removed to show overall dimensions.

See disassembly and handling instructions in installation manual.

33"

(838mm)

76"

(1930mm)

Compressor Assembly

Blower & Electric Box Assembly

Filter & Coil Assembly

Figure 35 Disassembly dimensions—upflow, air-cooled, 28-42kW (8-12 ton), semi-hermetic compressors

with centrifugal fans

Table 30 Component weights—upflow, air-cooled, 28-42kW (8-12 ton), semi-hermetic compressors

Dry Weight, Approximate, Including Panels, lb (kg)

Component

Compressor Assembly 800 (364) 800 (364)

Blower and Electric Box Assembly (Forward-Curved Fans) 510 (231) 510 (231)

Blower and Electric Box Assembly (EC Fans) 360 (163) 360 (163)

Filter and Coil Assembly 520 (236) 670 (304)

Source: DPN001171, Rev. 1

Air-Cooled Dual-Cool

43 Liebert® DS

™

Page 48

Air-Cooled Systems

Figure 36 Blower outlet and deck dimensions—upflow, air-cooled, 28-42kW (8-12 ton) with centrifugal

fans

73" (1854mm) or 86" (2184mm) Ref

Blower Outlet *

35"

(889mm)

Ref

Blower Outlet Location - Top View

Front of Unit

* Duct flange not provided

Top of Unit

Blower Deck

1-1/2"

(38mm)

76"

(1930mm)

Ref

DPN001120

Front or Rear Throw Air Supply

Table 31 Blower outlet and deck dimensions—upflow, air-cooled, 28-42kW (8-12 ton)

Dimensional data, in. (mm)

Model Blower Supply A B C D E

15 x 15

28-42kW

(8-12ton)

15 x 11

Source: DPN001120, Rev. 3

Front Throw 15-7/8 (404) 18-5/8 (472) 2-1/8 (54) 25-5/8 (651) 25 (635)

Rear Throw 15-7/8 (404) 18-5/8 (472) 11-5/8 (295) 25-5/8 (651) 25 (635)

Front Throw 15-7/8 (404) 14-1/2 (368) 2-1/8 (54) 25-5/8 (651) 25 (635)

Rear Throw 15-7/8 (404) 14-1/2 (368) 11-5/8 (295) 25-5/8 (651) 25 (635)

Rev. 3

Liebert® DS

™

Page 49

Air-Cooled Systems

33"

(838mm)

NOTE: Front air return unit shown. For rear return unit, in addition to front service area shown, also include 25" (635mm) on one side of unit for access to rear return filter box. See DPN001196.

1-1/2"

(38mm)

TOP VIEW

High-Volt Connection(s)

Alternate Refrigerant Piping Entrance

Low-Volt Connection(s)

FRONT VIEW

DPN001166 Rev. 2

3/4"

(19mm) Bezels

35"

(889mm)

76"

(1930mm)

(51mm)

98" (2489mm)

97" (2464mm)

Shaded area indicates a recommended minimum clearance for component access.

24"

(610mm)

34"

(864mm)

Minimum required

for blower replacement

Digital scroll compressors

not available on DS 077.

3.9 DIMENSIONS—LIEBERT DS 053-077, UPFLOW, AIR-COOLED MODELS

Figure 37 Dimensions—upflow, air-cooled, 53-77kw (15-22 ton), scroll or digital scroll compressors with

centrifugal fans

Table 32 Weights - upflow, air-cooled, 53-77kw (15-22 ton)—scroll or digital scroll compressors

Dry Weight, Approximate, lb (kg)

Model #

Compressor Type

Fan Type

Forward-Curved Blowers 2070 (939) 2250 (1021) 2070 (939) 2250 (1021)

* Digital scroll compressors not available on DS 077 Source: DPN001166, Rev. 2

Scroll/Digital Scroll Standard Scroll

Air-Cooled Dual-Cool Air-Cooled Dual-Cool

053, 042 077 *

45 Liebert® DS

™

Page 50

Air-Cooled Systems

NOTES:

1. Drawing not to scale.

2. Tolerance on all piping dimensions is ± 1/2" (13mm).

3. Field-routed alternatives for refrigerant gas and liquid line connection points.

4. See submittal page DPN001191 for blower outlet and deck dimensional data.

(152mm)

17-1/16"

(433mm)

Factory Location

DPN001213 Rev. 1

LEFT SIDE SECTION VIEW OF UNIT

FRONT SECTION VIEW OF UNIT

(Left Front Panel Not Shown)

14-1/4"

(362mm)

15-7/8"

(403mm)

3-7/8"

(98mm)

17-3/16"

(437mm)

TOP VIEW OF UNIT

All dimensions from rear corner of unit including panels

12-13/16"

(325mm)

12" (305mm)

35"

(889mm)

98" (2489mm)

(102mm)

Front of Unit

Blower Outlet

Digital scroll compressors not

available on DS 077.

Figure 38 Primary connection locations—upflow, air-cooled, 53-77kw (15-22 ton), scroll compressors

with centrifugal fans

Table 33 Piping data - upflow, air-cooled, 53-77kw (15-22 ton)—scroll compressors ***

Point Description

R1 Refrigerant Access (Top) 83-5/8 (2124) 2 (51) 12 x 4 (305 x 102)

R2 Refrigerant Access (Bottom) 82-3/4 (2102) 14-3/4 (374) 12-3/16 x 4 (310 x 102)

L1 Liquid Line System 1 94-11/16 (2405) 16-3/4 (425) 1/2" / 5/8" Cu Sweat

L2 Liquid Line System 2 91-7/8 (2334) 16-3/4 (425) 1/2" / 5/8" Cu Sweat

G1 Hot Gas Discharge 1 88-3/4 (2254) 16-3/8 (416) 7/8" / 1-1/8" Cu Sweat

G2 Hot Gas Discharge 2 85-9/16 (2173) 16-3/8 (416) 7/8" / 1-1/8" Cu Sweat

R3 Refrigerant Access (Side) — — 6 x 17-3/16 (152 x 437)

CGD* Condensate Gravity Drain — — 3/4" FPT

CPD Condensate Pump Discharge (Opt) 79-5/16 (2015) 11-7/8 (302) 1/2" Cu Sweat

HUM Humidifier Supply Line 79-5-16 (2015) 9-7/8 (251) 1/4" Cu Sweat

ECS Econ-O-Coil Supply 78-5/8 (1998) 7-7/8 (200) 2-1/8" Cu Sweat

ECR Econ-O-Coil Return 78-5/8 (1998) 4-5/8 (117) 2-1/8" Cu Sweat

E1 Electrical Conn. (High Volt) 75-3/8 (1915) 30 (762) 2-1/2"

E2 Electrical Conn. (High Volt) 69-7/8 (1775) 30 (762) 2-1/2"

LV1 Electrical Conn. (Low Volt) 19-1/2 (495) 29-1/16 (738) 7/8"

LV2 Electrical Conn. (Low Volt) 19-1/2 (495) 30-1/2 (775) 7/8"

LV3 Electrical Conn. (Low Volt) 19-1/2 (495) 31-15/16 (811) 7/8"

* Field pitch condensate drain line a minimum of 1/8" (3.2 mm) per foot (305 mm). All units contain a factory installed condensate trap. Do not

trap external to the unit. Drain line may contain boiling water. Select appropriate drain system materials. The drain line must comply with all

local codes. ** Supplied on dual-cool systems only. *** Digital scroll compressors not available on DS 077 Piping dimensions shown are connection sizes; field piping sizes may be different depending on distance. Refer to user manual, SL-18825. Source: DPN001213, Rev. 1

Liebert® DS

™

in. (mm)

in. (mm) Connection Size / Opening, in. (mm)

53kW (15 ton) / 70 & 77kW (20 & 22 ton)

Page 51

Air-Cooled Systems

82" (2083mm)

NOTES: Drawing views are simplified with panels removed to show overall dimensions. See disassembly and handling instructions in installation manual.

33"

(838mm)

76"

(1930mm)

DPN001210 Rev. 1

15"

(381mm)

Compressor Assembly

Blower & Electric Box Assembly

Filter & Coil Assembly

45-13/16"

(1163mm)

31-1/4"

(794mm)

76"

(1930mm)

Assembled

Height

97" (2464mm) Assembled Length

Digital scroll compressors not available on DS 077.

Figure 39 Disassembly dimensions—upflow, air-cooled, 53-77kw (15-22 ton), scroll or digital scroll

compressors with centrifugal fans

Table 34 Component weights—upflow, air-cooled, 53-77kw (15-22 ton), scroll or digital scroll

Dry Weight, Approximate, Including Panels, lb (kg)

Component

Compressor Assembly 540 (246) 540 (246) 540 (246) 540 (246)

Blower and Electric Box Assembly Forward-Curved Fans

Filter and Coil Assembly 760 (345) 940 (426) 760 (345) 940 (426)

* Digital scroll compressors not available on DS 077 Source: DPN001210, Rev. 1

compressors

Model # 053, 070 077

Compressor Scroll/Digital Scroll Standard Scroll *

Air-Cooled Dual-Cool Air-Cooled Dual-Cool

770 (349) 770 (349) 770 (349) 770 (349)

47 Liebert® DS

™

Page 52

Air-Cooled Systems

33"

(838mm)

NOTE: Front air return unit shown. For rear return unit, in addition to front service area shown, also include 25" (635mm) on one side of unit for access to rear return filter box. See DPN001196.

1-1/2"

(38mm)

TOP VIEWHigh-Volt Connection(s)

Alternate Refrigerant Piping Entrance

Low-Volt Connection(s)

FRONT VIEW

DPN001165 Rev. 2

3/4"

(19mm) Bezels

35"

(889mm)

76"

(1930mm)

(51mm)

109" (2769mm)

108" (2743mm)

Shaded area indicates a recommended minimum clearance for component access.

24"

(610mm)

34"

(864mm)

Minimum required

for blower replacement

Figure 40 Dimensions—upflow, air-cooled 53-77kw (15-22 ton), semi-hermetic compressors with

centrifugal fans

Table 35 Weights—upflow, air-cooled, 53-77kW (15-22 ton), semi-hermetic compressors

Dry weight, including panels, lb. (kg)

053 070, 077

Model Type

Forward-Curved Fans 2350 (1069) 2530 (1150) 2500 (1134) 2680 (1216)

Source: DPN001165, Rev. 2

Air-Cooled Dual-Cool Air-Cooled Dual-Cool

Liebert® DS

™

Page 53

Air-Cooled Systems

NOTES:

1. Drawing not to scale.

2. Tolerance on all piping dimensions is ± 1/2" (13mm).

3. Field-routed alternatives for refrigerant gas and liquid line connection points.

4. See submittal page DPN001191 for blower outlet and deck dimensions.

(152mm)

20-1/16"

(509mm)

Factory Location

DPN001212 Rev. 2

LEFT SIDE SECTION VIEW OF UNIT

FRONT SECTION VIEW OF UNIT

(Left Front Panel Not Shown)

14-1/4"

(362mm)

15-7/8"

(403mm)

3-7/8"

(98mm)

17-3/16"

(437mm)

TOP VIEW OF UNIT

All dimensions from rear corner of unit including panels

16-7/16"

(418mm)

15-3/16"

(386mm)

22-1/2"

(572mm)

35"

(889mm)

109" (2769mm)

Blower

Outlet

Blower

Outlet

(102mm)

Front of Unit

CGD *

333

Figure 41 Primary connection locations—upflow air-cooled 53-77kW (15-22 ton), semi-hermetic

compressors with centrifugal fans

Table 36 Piping data—upflow, air-cooled, 53-77kW (15-22 ton), semi-hermetic compressors

Point Description

R1 Refrigerant Access (Top) 83-3/4 (2127) 1-7/8 (48) 22-1/2 x 15-3/16 (572 x 386)

R2 Refrigerant Access (Bottom) 86 (2184) 13-7/8 (352) 16-7/16 x4 (418 x102)

L1 Liquid Line System 1 97 (2464) 16-3/4 (425) 1/2" / 5/8" Cu Sweat

L2 Liquid Line System 2 93-5/16 (2370) 16-3/4 (425) 1/2" / 5/8" Cu Sweat

G1 Hot Gas Discharge 1 90-5/8 (2302) 16-5/8 (422) 7/8" / 1-1/8" Cu Sweat

G2 Hot Gas Discharge 2 88 (2235) 16-5/8 (422) 7/8" / 1-1/8" Cu Sweat

R3 Refrigerant Access (Side) — — 6 x 17-3/16 (152 x 437)

CGD* Condensate Gravity Drain — — 3/4 FPT

CPD Condensate Pump Discharge (Opt) 79-5/16 (2015) 11-7/8 (302) 1/2" Cu Sweat

HUM Humidifier Supply Line 79-5/16 (2015) 9-7/8 (251) 1/4" Cu Sweat