Emerson 3000 User manual

Precision Cooling

For Business-Critical Continuity™

Liebert Challenger

™

3000 with iCOM

Installation Manual - 3 & 5 Tons, 50 & 60Hz

i

TABLE OF CONTENTS

IMPORTANT SAFETY INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

1.0 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

1.1 System Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.1.1 Self-Contained Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.1.2 Chilled Water Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.1.3 Split Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2.0 INSTALLATION (APPLICABLE TO ALL MODELS). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

2.1 Room Preparation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.2 Equipment Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.3 Location Considerations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.4 Equipment Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.4.1 Handling With Skid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.4.2 Removal of Skid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.5 Piping Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.5.1 Drain Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.5.2 Humidifier Supply Water—Optional Infrared . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2.6 Facility Fluid and Piping Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2.7 Electrical Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2.8 Balancing the Air Distribution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

2.8.1 Under-Floor Discharge Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

2.8.2 Ducted Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

2.8.3 Plenum Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

2.9 Checklist for Completed Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

3.0 AIR-COOLED MODELS—SELF-CONTAINED COMPRESSOR . . . . . . . . . . . . . . . . . . . . . . . . .23

3.1 Condenser Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

3.2 Electrical Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

3.2.1 Line Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

3.2.2 Low Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

3.2.3 Liebert Lee-Temp/Flood Back Head Pressure Control Condensers . . . . . . . . . . . . . . . . . . . . 23

3.3 Refrigerant Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

3.4 Fan Speed Control Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

3.5 Air-Cooled Condenser with Liebert Lee-Temp “Flooded Condenser” Head Pressure

Control System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

4.0 WATER-COOLED MODELS—SELF-CONTAINED COMPRESSOR . . . . . . . . . . . . . . . . . . . . . .35

4.1 Piping Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

4.2 Condenser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

4.3 Water Regulating Valve. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

4.3.1 Standard Valve - 150psig (1034kPa) System for 3 & 5-Ton Units (Johnson Controls

Valve) High Pressure Valve - 350psig (2413kPa) System for 5-Ton Units (Johnson

Controls Valve) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

4.3.2 High Pressure Valve - 350 psig (2413 kPa) System for 3-Ton Units (Metrex Valve) . . . . . . . 38

4.4 Motorized Ball Valve—Digital Scroll Compressors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

4.4.1 Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

4.4.2 Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

4.4.3 Startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

4.4.4 Location. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

4.4.5 Manual Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

ii

5.0 GLYCOL/GLYCOOL-COOLED MODELS—SELF-CONTAINED COMPRESSOR . . . . . . . . . . . . 41

5.1 Drycooler Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

5.2 Drycooler Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

5.3 Electrical Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

5.3.1 Line Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

5.3.2 Low Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

5.3.3 Pump and Drycooler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

5.4 Glycol Piping. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

5.4.1 Expansion Tanks, Fluid Relief Valves and Other Devices. . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

5.5 Filling Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

5.5.1 Preparing the System for Filling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

5.5.2 Glycol Solutions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

5.5.3 Filling the System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

5.5.4 Motor Ball Valve—Digital Scroll Compressors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

5.6 Condenser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

5.7 Glycol Regulating Valve. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

5.7.1 Standard Valve - 150psig (1034kPa) System for 3 & 5-Ton Units (Johnson Controls

Valve) High Pressure Valve - 350psig (2413kPa) System for 5-Ton Units (Johnson

Controls Valve) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

5.7.2 High Pressure Valve - 350 psig (2413 kPa) System for 3-Ton Units (Metrex Valve) . . . . . . . 53

5.7.3 Testing Valve Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

6.0 CHILLED WATER MODELS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54

6.1 Piping Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

7.0 SPLIT SYSTEM MODELS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56

7.1 Location Considerations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

7.1.1 Air-Cooled Condensing Units. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

7.1.2 Water/Glycol-Cooled Condensing Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

7.2 Electrical Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

7.2.1 Line Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

7.2.2 Low Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

7.3 Piping Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

7.3.1 Refrigerant Loop. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

7.3.2 Quick Connect Fittings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

7.4 Outdoor Air-Cooled Condensing Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

7.5 Centrifugal Air-Cooled Condensing Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

7.5.1 Installing the Indoor Condensing Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

7.5.2 Ducting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

7.6 Water and Glycol-Cooled Condensing Units. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

7.6.1 Piping Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

7.6.2 Condenser Water Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

7.6.3 Regulating Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

7.6.4 Glycol Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

8.0 R407C REFRIGERANT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .77

8.1 Calculating Subcooling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78

iii

FIGURES

Figure 1 Removing Challenger from skid. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Figure 2 Upflow (BU) cabinet dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Figure 3 Downflow (BF) cabinet dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Figure 4 Piping connections for air-cooled units - Downflow models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Figure 5 Piping connections for air-cooled units - Upflow models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Figure 6 Piping connections for split system fan coil units - Downflow models . . . . . . . . . . . . . . . . . . . . . 12

Figure 7 Piping connections for split system fan coil units - Upflow models . . . . . . . . . . . . . . . . . . . . . . . 13

Figure 8 Piping connections for water/glycol and GLYCOOL units - Downflow models . . . . . . . . . . . . . . 14

Figure 9 Piping connections for water/glycol and GLYCOOL units - Upflow models . . . . . . . . . . . . . . . . . 15

Figure 10 Piping connections for chilled water self-contained units - Downflow models . . . . . . . . . . . . . . . 16

Figure 11 Piping connections for chilled water self-contained units - Upflow models . . . . . . . . . . . . . . . . . 17

Figure 12 Electrical connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Figure 13 Electrical field connections for Liebert iCOM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Figure 14 Air-cooled condensers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Figure 15 General arrangement—Air-cooled models with fan speed control. . . . . . . . . . . . . . . . . . . . . . . . . 29

Figure 16 General arrangement—Air-cooled models with digital scroll and fan speed control . . . . . . . . . . 30

Figure 17 General arrangement—Air-cooled models with Liebert Lee-Temp . . . . . . . . . . . . . . . . . . . . . . . . 33

Figure 18 General arrangement—Air-cooled models with digital scroll and Lee-Temp . . . . . . . . . . . . . . . . 34

Figure 19 General arrangement—Water-cooled models with scroll compressor . . . . . . . . . . . . . . . . . . . . . . 36

Figure 20 General arrangement diagram—Water-cooled models with digital scroll . . . . . . . . . . . . . . . . . . 37

Figure 21 Johnson Controls valve adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Figure 22 Metrex Valve adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Figure 23 Drycoolers and pump packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Figure 24 Pump packages—expansion tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Figure 25 General arrangement—Glycol-cooled models with scroll compressor . . . . . . . . . . . . . . . . . . . . . . 49

Figure 26 General arrangement—Glycol-cooled models with digital scroll . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Figure 27 General arrangement—GLYCOOL models with scroll compressor. . . . . . . . . . . . . . . . . . . . . . . . 51

Figure 28 General arrangement—GLYCOOL models with digital scroll compressor . . . . . . . . . . . . . . . . . . 52

Figure 29 Chilled water general arrangement - Upflow (BU). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

Figure 30 Chilled water general arrangement - Downflow (BF) models . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Figure 31 Refrigerant piping diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Figure 32 Outdoor air-cooled condensing unit—horizontal air discharge models . . . . . . . . . . . . . . . . . . . . . 60

Figure 33 Outdoor air-cooled condensing unit—top air discharge models . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

Figure 34 Electrical field connections, prop fan condensing module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

Figure 35 Detail of ceiling hanging bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

Figure 36 3-ton centrifugal air-cooled condensing unit dimensional data & piping connections . . . . . . . . . 67

Figure 37 3-ton centrifugal air-cooled condensing unit (con't.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

Figure 38 5-ton centrifugal air-cooled condensing unit dimensional data . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

Figure 39 5-ton centrifugal air-cooled condensing unit dimensional data (con't.) . . . . . . . . . . . . . . . . . . . . . 70

Figure 40 Split systems general arrangement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

Figure 41 3-ton water/glycol-cooled condensing unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

Figure 42 3-ton water/glycol-cooled condensing unit (con't.). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

Figure 43 5-ton water/glycol-cooled condensing unit dimensional data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

Figure 44 5-ton water/glycol-cooled condensing unit (con't.). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . 76

iv

TABLES

Table 1 Unit net weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Table 2 Piping connection size. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Table 3 Recommended free area ft

2

(m

2

) for grilles or perforated panels at output velocities of 550

and 600 fpm (2.8 and 3.1 m/s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Table 4 Air-cooled condenser statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Table 5 Recommended line sizes — OD copper (inches)* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Table 6 Equivalent lengths (feet) for various pipe fittings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Table 7 Indoor unit refrigerant charge lb (kg) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Table 8 Line charges - refrigerant per 100 ft. (30 m) of Type “L” copper tube . . . . . . . . . . . . . . . . . . . . . . 26

Table 9 Condenser refrigerant (per serial tag) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Table 10 Fan speed suction pressure transducer settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Table 11 Lee-Temp suction pressure transducer settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Table 12 Refrigerant control settings psi (kPa) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Table 13 Room dew point temperatures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Table 14 Indoor unit glycol volume approximate gallons (liters) max. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Table 15 Volume in standard Type “L” copper piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Table 16 Ethylene glycol concentrations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Table 17 Mounting hole dimensional data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Table 18 Drycooler data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Table 19 Glycol pump data* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Table 20 Refrigerant control settings psi (kPa) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Table 21 Unit refrigerant charge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

Table 22 Line charges - refrigerant per 100 ft. (30 m) of Type “L” copper tube . . . . . . . . . . . . . . . . . . . . . . 58

Table 23 Recommended refrigerant lines (R407C) sizes OD copper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

Table 24 Line coupling sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Table 25 Equivalent lengths (feet) for various pipe fittings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Table 26 Horizontal air discharge cabinet and floor planning dimensional data. . . . . . . . . . . . . . . . . . . . . 61

Table 27 Horizontal air discharge piping and electrical connection data . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Table 28 Cabinet and floor planning dimensional data - prop fan condensing modules, top air

discharge. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

Table 29 Piping and electrical connections - top air discharge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

Table 30 Indoor centrifugal condensing unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

Table 31 Airflow CFM (CMH) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

Table 32 Water and glycol-cooled condensing unit data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

Table 33 R407C pressure/temperature chart for operation and superheat (discharge/hot gas and

suction gas). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

Table 34 R407C pressure/temperature chart for subcooling only (liquid measurements). . . . . . . . . . . . . . 78

1

IMPORTANT SAFETY INSTRUCTIONS

SAVE THESE INSTRUCTIONS

This manual contains important safety instructions that should be followed during the installation

and maintenance of the Liebert Challenger 3000

™

. Read this manual thoroughly before attempting to

install or operate this unit.

Only qualified personnel should move, install or service this equipment.

Adhere to all warnings, cautions and installation, operating and safety instructions on the unit and in

this manual. Follow all operating and user instructions.

!

WARNING

Risk of electric shock. Can cause injury or death.

Disconnect local and remote power supplies before working within.

Before proceeding with installation, read all instructions, verify that all the parts are included

and check the nameplate to be sure the voltage matches available utility power.

The Liebert iCOM

®

microprocessor does not isolate power from the unit, even in the “unit off”

mode. Some internal components require and receive power even during the “unit off” mode of

Liebert iCOM control.

The factory-supplied optional disconnect switch is inside the unit. The line side of this switch

contains live high-voltage.

The only way to ensure that there is NO voltage inside the unit is to install and open a remote

disconnect switch. Refer to unit electrical schematic.

Follow all local codes.

!

WARNING

Risk of explosive discharge from high-pressure refrigerant. Can cause injury or death.

This unit contains fluids and gases under high pressure. Relieve pressure before working with

piping.

!

WARNING

Risk of refrigerant system rupture or explosion from overpressurization. Can cause

equipment damage, injury or death.

If a pressure relief device is not provided with the condenser unit, the system installer must

provide and install a discharge pressure relief valve rated for a maximum of 500 psig (34bar)

in the high side refrigerant circuit. Do not install a shutoff valve between the compressor and

the field installed relief valve.

For systems requiring EU CE compliance (50Hz), the pressure relief valve must be CE

certified to the EU Pressure Equipment Directive by an EU “Notified Body.”

NOTE

A pressure relief valve is provided with Liebert Lee-Temp

™

condensers. A fusible plug is

provided on Liebert Fan Speed Control condensers. The Liebert indoor cooling unit has a

factory-installed high pressure safety switch in the high side refrigerant circuit.

!

WARNING

Risk of high-speed moving parts. Can cause injury or death.

Disconnect all local and remote electric power supplies before working in the unit.

Do not operate upflow units without installing a plenum, ductwork or guard over the blower

opening(s) on the top surface of the unit cabinet.

Ductwork must be connected to the blower(s), or a plenum must be installed on the blower

deck for protection from rotating blower wheel(s) on upflow units.

2

NOTICE

Risk of leaking water. Can cause equipment and building damage.

This unit requires a water drain connection. It may also require an external water supply to

operate.

Improper installation, application and service practice can result in water leakage from the

unit. Water leakage can result in severe property damage and loss of critical data center

equipment.

Do not locate unit directly above any equipment that could sustain water damage.

Emerson recommends installing leak detection equipment for unit and supply lines.

!

CAUTION

Risk of contact with hot surfaces. Can cause injury.

The compressor, refrigerant discharge lines, humidifiers and reheats are extremely hot

during unit operation. Allow sufficient time for them to cool before working within the unit

cabinet. Use extreme caution and wear protective gloves and arm protection when working on

or near hot compressors, discharge lines, humidifiers and reheats.

Introduction

3

1.0 INTRODUCTION

1.1 System Descriptions

Challenger 3000

™

environmental control systems are available in three main system configurations:

• self-contained system with a scroll compressor in the room unit

• self-contained chilled water system

• split system with an evaporator section and a remote condensing unit

All three types are available in upflow or downflow configurations. The standard upflow configuration

is front return. All models require three-phase power. Units are available in 208, 230, 460, or 575V,

60Hz; and 200, 230 or 380/415V, 50Hz.

The following features are included as standard in all room units regardless of the type of system: Lie-

bert iCOM control, A-frame coil (V-frame on upflows), infrared humidifier, finned tubular stainless

steel electric reheat, 2" filter, individual high voltage fused protection and fan assembly.

1.1.1 Self-Contained Systems

Air-Cooled Models

Complete refrigeration system including hot gas bypass and crankcase heater with standard scroll

compressor, standard condenser and fan speed control for 95°F (35°C) ambient at sea level. Optional

Digital scroll compressor with unloading solenoid valve is also available. Digital scroll compressor

systems do not include hot gas bypass.

Water-Cooled Models

Compete refrigeration system including hot gas bypass with standard scroll compressor, water/glycol-

cooled condenser and two-way water regulating valve with bypass. Optional digital scroll compressor

with unloading solenoid valve is also available. Digital scroll compressor systems use a 2-way motor-

ized ball valve in lieu of the regulating valve; they do not include hot gas bypass.

Glycol-Cooled Models

The water-cooled model as described above plus pump package and 95°F (35°C) design ambient dry-

cooler.

GLYCOOL Models (5-Ton Only)

Complete refrigeration system including hot gas bypass with standard scroll compressor, glycol con-

denser and three-way water regulating valve plus an integrally piped Econ-O-Coil with three-way mod-

ulating control valve. Optional digital scroll compressor with unloading solenoid valve is also available.

Digital scroll compressor systems use a 3-way motorized ball valve in lieu of the regulating valve; they

do not include hot gas bypass.

1.1.2 Chilled Water Models

Chilled Water models include chilled water piping, three-way modulating valve, and actuator assem-

bly.

Introduction

4

1.1.3 Split Systems

Each air-cooled split system consists of an evaporator section and one of the following condensing

units.

Prop Fan Air-Cooled

Prop Fan units include scroll compressor, condenser coil, prop fan, high pressure switch, hot gas

bypass and Liebert Lee-Temp head pressure control. Unit is designed for outdoor location.

Centrifugal Fan Air-Cooled

Centrifugal Fan units include scroll compressor, condenser coil, centrifugal blower assembly,

high-pressure switch, hot gas bypass and Liebert Lee-Temp head pressure control. Unit must be

mounted indoors. Duct flanges are optional.

Water-Cooled

Each water-cooled split system consists of an evaporator section and a water/glycol condensing unit,

which includes scroll compressor, coaxial condenser, water regulating valve, hot gas bypass and

high-pressure switch. Design pressure is 150 psi (1034 kPa) as standard and 350 psi (2413 kPa) as

optional.

Glycol-Cooled

Each glycol-cooled split system consists of an evaporator section, a water/glycol condensing unit (as

described above), a pump package, and a 95°F (35°C) design ambient drycooler.

Installation (Applicable to all Models)

5

2.0 INSTALLATION (APPLICABLE TO ALL MODELS)

2.1 Room Preparation

The room should be well insulated and must have a sealed vapor barrier. The vapor barrier in the

ceiling can be a polyethylene film type. Use a rubber or plastic base paint on concrete walls and floors.

Doors should not be undercut or have grilles in them.

Outside (or fresh) air should be kept to an absolute minimum. Outside air adds to the heating, cool-

ing, humidifying and dehumidifying loads of the site. It is recommended that outside air be kept

below 5% of the total air circulated in the room and be preconditioned.

2.2 Equipment Inspection

Upon arrival of the unit, inspect all items for visible and concealed damage. Damage should be imme-

diately reported to the carrier and a damage claim filed with a copy sent to Liebert or to your sales

representative.

2.3 Location Considerations

The unit can sit on top of an accessible elevated flooring system. It may be necessary to furnish addi-

tional pedestal support below the unit to ensure maximum structural support (see Table 1). A sepa-

rate floor stand for the unit may be used as support, independent of the elevated floor and installed

prior to the flooring system.

Provide approximately 34" (864 mm) service clearance on the front of the unit.

Avoid placing units in an alcove or at the extreme end of a room that has a high aspect ratio (long,

narrow room). Ducted units can be placed in room corners or ends as long as front access is main-

tained. Placing units too close together will reduce the effectiveness of the air distribution.

2.4 Equipment Handling

NOTE

GLYCOOL units require 34" (864 mm) service clearance on the right side of the unit in

addition to front service clearance.

NOTE

Locate and remove shipping screw on fan motor base.

!

WARNING

Risk of top-heavy unit falling over. Improper handling can cause equipment damage, injury or

death.

Read all of the following instructions before attempting to move, lift, remove packaging from

or preparing unit for installation.

The instructions below are to be adhered to when handling this unit with or without the skid.

There is the potential for this unit to tip over if it is handled improperly.

Installation (Applicable to all Models)

6

2.4.1 Handling With Skid

• Always keep the unit upright, indoors and protected from damage.

• If possible, transport the unit using a fork lift; otherwise, use a crane with belts or cables, avoid-

ing pressing on the top edges of the packaging.

• If using a fork lift, make sure the forks, if adjustable, are spread to the widest allowable distance

to still fit under the skid.

NOTICE

Risk of overhead interference. Can cause unit and/or structure damage. Refer to the

installation plans prior to moving the unit to verify clearances.

While on the skid, the unit is too tall to fit through a standard height doorway (83 inches or

2108 mm tall). Any attempt to move the unit, while on the skid, through a standard doorway

will cause damage to the unit.

2.4.2 Removal of Skid

• Remove the plywood skirting that keeps the skid and unit in place.

• Raise the Challenger 3000 off the skid. Liebert recommends using a fork lift (see Figure 1)

or similar machine to ensure that the unit is lifted properly.

• Once the unit is raised, the skid can be removed.

Figure 1 Removing Challenger from skid

Table 1 Unit net weight

Model Lb (kg)

036E/035E 535 (243)

060E/059E 545 (247)

042A/040A 615 (279)

067A/065A 670 (304)

046WG/045WG 700 (318)

071WG/070WG 750 (340)

061G/058G 785 (356)

068C/072C 545 (247)

102C/101C 555 (252)

Remove plywood skirting holding

unit and skid in place.

Raise unit with fork lift

or similar machine.

Installation (Applicable to all Models)

7

Figure 2 Upflow (BU) cabinet dimensions

A

Shaded area indicates a recommended

clearance of 34" (864mm) for component

access. Right side access suggested for

GLYCOOL units.

DPN000350

Rev. 01

FRONT VIEW

(front return configuration)

32-1/2"

(826mm)

Overall

Dimension

32-1/2"

(826mm)

Overall

Dimension

32-1/2"

(826mm)

32-1/2"

(826mm)

Blower Outlet with

1" (25.4mm) Flange

7/8" (22.2mm) Flange for

Duct or Plenum Connection

Return Air Louvers

Plenum available with:

-2, 3 or 4 grilles.

-Solid sides with a 7/8" (22mm)

duct flange on top.

Standard Piping Location

Standard Electrical Outlet

Location Through Unit

Standard Electrical Outlet

Location Through Plenum

29-3/4"

(756mm)

1-5/8"

(41mm)

9-5/8"

(244mm)

30-1/2"

(775mm)

30-1/2"

(775mm)

1-7/8"

(48mm)

12-1/2"

(318mm)

5-1/2" (140mm)

8-1/2"

(216mm)

Filter Access

Through Top

7-1/2"

(191mm)

29"

(737mm)

2-1/2"

(67mm)

1-3/4 "

(44mm)

REAR VIEW

(rear return configuration)

94"

(2388mm)

76"

(1930mm)

6-7/8" (175mm)

10-1/4"

(260mm)

18"

(457mm)

Projection of Display

Bezel 5/8" (16mm)

Air Discharge Grille

1" (25mm)

FRONT &

SIDES

3/4" (19mm)

REAR

13"

(330mm)

UNIT

TOP VIEW

A

STD 3 & 5T 11-3/4 (299mm)

Hi Static 3T 8 5/8 (219mm)

Hi Static 5T 11-3/4 (299mm)

Installation (Applicable to all Models)

8

Figure 3 Downflow (BF) cabinet dimensions

Shaded area indicates

a recommended clearance of

34” (864mm) for component

access. Right side access

suggested for GLYCOOL units

DPN000351

Rev. 01

32-1/2"

(826mm)

Overall

Dimension

32-1/2"

(826mm)

Overall

Dimension

30-1/2"

(775mm)

76"

(1930mm)

30-1/2"

(775mm)

30-1/2"

(775mm)

30-1/2"

(775mm)

30-1/2"

(775mm)

30-1/2"

(775mm)

30-1/2"

(775mm)

30-1/2"

(775mm)

Projection of Display

Bezel 5/8" (16mm)

Optional 1-5/8" (41mm)

Flange for Duct or

Plenum Connection

1"

(25.4mm)

1"

(25.4mm)

1"

(25.4mm)

1"

(25.4mm)

FLOOR CUTOUT DIMENSIONS

8"

(203mm)

9"

(229mm)

OPTIONAL FLOOR STAND DIMENSIONAL DATA

4"

(102mm)

1" (25.4mm)

28-1/2"

(724mm)

12"

(305mm)

Floor

Level

Standard Piping

Location

Standard Electrical Location

See Specification

Sheet for Floor Stand

Height Ordered.

1" (25mm) FRONT & SIDES

3/4" (19mm) REAR

Installation (Applicable to all Models)

9

2.5 Piping Considerations

All piping below the elevated floor must be located so that it offers the least resistance to air flow.

Careful planning of the piping layout under the raised floor is required to prevent the air flow from

being blocked. When installing piping on the subfloor, it is recommended that the pipes be mounted in

a horizontal plane rather than stacked one above the other. Whenever possible, the pipes should be

run parallel to the air flow.

Condensate pumps for downflow units are shipped separately to be field-installed under the raised

floor. Pump height is 11 inches (279 mm).

2.5.1 Drain Line

A 3/4" (19.1 mm) female pipe thread (FPT) connection is provided for the evaporator coil condensate

drain. This drain line also drains the humidifier, if applicable. The drain line must be located so it will

not be exposed to freezing temperatures. The drain should be at least the full size of the drain connec-

tion and pitched a minimum of 1/8" per ft. (11 mm per meter).

NOTE

This line may contain boiling water. Select appropriate drain system materials.

The drain line must include one and only one trap. Units without a condensate pump have a

factory-supplied trap in the unit, so a field trap should not be added. Units with a condensate

pump will require a field-supplied trap downstream from the pump. The drain line must

comply with all applicable codes.

Table 2 Piping connection size

Air-Cooled Unit Connection Sizes—in.

Model No. BF/BU

(50 Hz)

Liquid Line O.D. Copper

L

Hot Gas Line OD Copper

HG

042A (040A) 3/8 5/8

067A (065A) 1/2 7/8

Split System Fan Coil Unit Connection Sizes—in.

Model No. BF/BU (50 Hz) Liquid Line

L

Suction Line

SC

036E (035E) 5/8 - 18 Female (#6 QC) 1-1/8 - 12 Female (#11 QC)

060E (059E) 1/2 OD Cu 1-1/8 OD Cu

All Units: Connection Sizes—in.

Humidifier Line

OD Copper

H

Condensate

Drain Line

C

Condensate Pump Line

OD Copper

P

Hot Water Reheat

OD Copper

1/4 3/4 FPT 1/2

Supply

HWS

Return

HWR

5/8 5/8

Water/Glycol-Cooled Unit Connection Sizes—inches

Model No. BF/BU

(50 Hz)

Supply Line

S

Return Line

R

046WG (045WG) 7/8 7/8

071WG (070WG) 1-1/8 1-1/8

GLYCOOL Unit Connection Sizes —in.

Model No. BE/BK

(50 Hz)

Supply Line

S

Return Line

R

061G (058G) 1-1/8 1-1/8

Chilled Water Unit Connection Sizes—in.

Model No. BF/BU

(50 Hz)

Supply Line

CWS

Return Line

CWR

068C (072C) 1-1/8 1-1/8

102C (101C) 1-1/8 1-1/8

Installation (Applicable to all Models)

10

Figure 4 Piping connections for air-cooled units - Downflow models

PIPING OUTLET LOCATIONS

(See Cabinet and Floor Planning

Dimensional Data for Piping

Opening Sizes.)

Liebert iCOM

Control Panel

Condensate Drain 3/4" FP T

Field-pitch a minimum of 1/8" (3.2mm)

per foot (305mm). The drain line

must comply with all applicable codes.

Humidifier Water Supply Line

1/4" OD CU

Hot Gas Refrigerant Line

5/8" OD CU on Models BF042A/BF040A

7/8" OD CU on Models BF067A/BF065A

Hot Water Return

5/8" OD CU (optional)

Liquid Refrigerant Line

3/8" OD CU on Models BF042A/BF040A

1/2" OD CU on Models BF067A/BF065A

Hot Water Supply

5/8" OD CU (optional)

DPN000353

Rev. 01

Installation (Applicable to all Models)

11

Figure 5 Piping connections for air-cooled units - Upflow models

Condensate Drain

3/4" FPT

Field pitch a min. of 1/8" (3.2mm) per ft. (305mm). Units without

a condensate pump have a factory-supplied trap in the unit, so a

field trap should not be added. Units with a condensate pump will

require a field-supplied trap downstream from the pump.The

drain line must comply with all applicable codes. (If condensate

pump is ordered piping is out top of unit).

DPN000352

Rev. 01

Piping outlet locations through the plenum

are the same as the unit. See below for

descriptions and connection sizes.

Humidifier Water Supply Line

1/4" OD CU

Hot Gas Refrigerant Line

5/8" OD CU on Models BU042A/BU040A

7/8" OD CU on Models BU067A/BU065A

Condensate Pump Line

1/2" OD CU

Used only if optional condensate

pump is ordered.

Hot Water Return

5/8" OD CU (optional)

Liquid Refrigerant Line

3/8" OD CU on Models BU042A/BU040A

1/2" OD CU on Models BU067A/BU065A

Hot Water Supply

5/8" OD CU (optional)

Liebert iCOM

Control

PIPING OUTLET LOCATIONS

(See Cabinet and Floor Planning

Dimensional Data for Piping

Opening Sizes.)

Installation (Applicable to all Models)

12

Figure 6 Piping connections for split system fan coil units - Downflow models

PIPING OUTLET LOCATIONS

(See Cabinet and Floor

Planning Dimensional Data

for Piping Opening Sizes.)

DPN000376

Rev. 01

Condensate Drain

3/4" FPT

Field pitch a minimum

of 1/8" (3.2mm) per ft. (305mm).

The drainline must comply

with all applicable codes.

HumidifierWater Supply Line

1/4" OD CU

Suction Refrigerant Line

#11 Quick Connect on Models BF036E/BF035E

1-1/8" OD CU on Models BF060E/BF059E

Hot Water Return

5/8" OD CU (optional)

Liquid Refrigerant Line

#6 Quick Connect on Models BF036E/BF035E

1/2" OD CU on Models BF060E/BF059E

Hot Water Supply

5/8" OD CU (optional)

Liebert iCOM

Control

Installation (Applicable to all Models)

13

Figure 7 Piping connections for split system fan coil units - Upflow models

DPN000375

Rev. 01

Piping outlet locations through the

plenum are the same as the unit.

See below for descriptions and

connection sizes.

Humidifier Water Supply Line

1/4" OD CU

Suction Refrigerant Line

#11 Quick Connect on Models BU036E/BU035E

1 1/8" OD CU on Models BU060E/BU059E

Condensate Pump Line

1/2" OD CU; used only

if optional condensate pump is ordered.

Hot Water Return

5/8" OD CU (optional)

Liquid Refrigerant Line

#6 Quick Connect on Models BU036E/BU035E

1/2" OD CU on Models BU060E/BU059E

Hot Water Supply

5/8" OD CU (optional)

iCOM Control

Panel

Condensate Drain; 3/4" FPT

Field-pitch a min. of 1/8" (3.2mm) per ft. (305mm). Units without

a condensate pump have a factory-supplied trap in the unit, so a

field trap should not be added. Units with a condensate pump will

require a field-supplied trap downstream from the pump. The

drain line must comply with all applicable codes. (If condensate

pump is ordered, piping is out top of unit).

PIPING OUTLET LOCATIONS

(See Cabinet and Floor Planning

Dimensional Data for Piping

Opening Sizes.)

Installation (Applicable to all Models)

14

Figure 8 Piping connections for water/glycol and GLYCOOL units - Downflow models

DPN000364

Rev. 01

Condensate Drain

3/4" FPT

Field pitch a minimum

of 1/8" (3.2mm) per ft. (305mm).

The drain line must comply with

all applicable codes

Humidifier Water Supply Line

1/4" OD CU

Condenser Return Line

7/8" OD CU on Models BF046WG/BF045WG

1-1/8" OD CU on Models BF071WG/BF070WG

Hot Water Return

5/8" OD CU (optional)

Condenser Supply Line

7/8" OD CU on Models BF046WG/BF045WG

1-1/8" OD CU on Models BF071WG/BF070WG

Hot Water Supply

5/8" OD CU (optional)

PIPING OUTLET LOCATIONS

(See Cabinet and Floor Planning

Dimensional Data for Piping

Opening Sizes.)

iCOM Control

Panel

Page is loading ...

Emerson 3000 User manual

Emerson 3000 User manual

Related papers

Other documents