Vertiv Liebert CRV Row User Manual

Liebert® CRV Row BasedCoolingSystem

Installer/User Guide

600 mm and 300 mm Wide

Vertiv Liebert®CRV Installer/User Guide

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

Vertiv recommends installing a monitored fluid detection system that is wired to activate the automatic closure of field-installed coolant fluid supply and return shut off valves, where applicable, to reduce the amount of coolant fluid leakage and consequential equipment and building damage. Refer to local regulations and building codes relating to the application, installation, and operation of this product. The consulting engineer, installer, and/or end user is responsible for compliance with all applicable laws and regulations relation to the application, installation, and operation of this product.

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

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

Technical Support Site

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

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

Vertiv | Liebert ® CRV Installer/User Guide

TABLE OF CONTENTS

1 Important Safety Instructions 1

2 Nomenclature and Components 7

2.1 Model Number Nomenclature 7

2.2 Component Location 7

2.3 Cooling Configurations and Liebert® CRV Overview 8

3 Pre-installation PreparationandGuidelines 9

3.1 Planning Dimensions 9

3.2 Unit Weights 9

4 Equipment Inspection and Handling 11

4.1 Packaging Material 12

4.2 Handling the Unit while Packaged 12

4.3 Unpacking the Export Shipped 600 mm(24 in.) Unit 12

4.4 Unpacking the Domestic Shipped 600 mm(24 in.) Unit 13

4.5 Removing 600 mm (24 in.) Units from the Pallet 14

4.6 Unpacking the Export Shipped 300 mm(24 in.) Unit 16

4.7 Unpacking the Domestic Shipped 300 mm(12 in.) Unit 17

4.8 Removing 300 mm (12 in.) Units from the Pallet 18

5 Installing in Enclosure Row 21

5.1 Adjusting Base Supports/Leveling Feet 21

5.2 Optional Tie Down Brackets for 300 mm (12 in.) Units 23

5.2.1 What’s Included 23

5.2.2 Tools Required 24

5.2.3 Installing Tie Down Brackets on300 mm(12 in.) andonCabinetsofDifferentHeights 24

5.2.4 Installing Tie Down Brackets on300 mm(12 in.) andonCabinetsoftheSameHeight 26

6 Piping and Refrigerant Requirements 27

6.1 Drain and Humidifier Fluid Piping 28

6.1.1 Humidifier Water Supply Line Requirements 28

6.1.2 Condensate Pump Drain Line Requirements 29

6.1.3 Condensate Pump Drain Piping for300 mm(12 in.) Models 30

6.1.4 FieldInstalled, Gravity Fed Drain Line Requirements 36

6.2 Refrigerant Piping and Charging 41

6.2.1 Refrigerant Piping Guidelines forAir CooledSystems 42

6.3 Piping Guidelines for Liebert® MC Condensers 43

6.3.1 Piping Layout and Condenser Positioning 44

6.3.2 Top or Bottom Connection for Refrigerant Piping onAir Cooled Units 45

6.3.3 Refrigerant Line Sizes and Equivalent Lengths 46

6.3.4 Refrigerant Charge Requirements for Air Cooled Systems 47

6.3.5 Additional Oil Requirements for Digital ScrollCompressors 50

6.3.6 Evacuation, Leak Testing, and Charging Air Cooled Systems without Receivers 52

Vertiv™ | Liebert® CRV Installer/User Guide | i

6.3.7 Evacuation, Leak Testing, and Charging Air Cooled Systems withLiebert® Lee-Temp Flooded Condenser Head PressureControlSystem 56

6.3.8 Superheat and Refrigerant Charge Optimization 58

6.4 Water/Glycol Loop Piping Guidelines 59

6.4.1 Glycol Mixture 62

6.4.2 Water/Glycol Cooled Piping Connections 62

6.4.3 Leak Checking for Unit and Field Installed Piping 64

6.5 Chilled Water Loop Piping 64

7 Electrical Connections 67

7.1 Power Supply Cable Connection Guidelines 67

7.2 Wiring Connection Guidelines 67

7.3 Electrical Field Connections Descriptions 68

7.3.1 Locating the Serial Tags and Removing the Electrical Panel on 600mm (24 in.) Units 68

7.3.2 Cable Entry Points on 600mm (24in.) Units 71

7.3.3 Protective Features of Electrical Heaters—600-mm (24-in.) Units 72

7.3.4 Accessing the Electrical Panel on 300 mm (12 in) Units 72

7.3.5 Releasing the Electric Panel Lock 73

7.4 Protective Features of the Electronically Commutated (EC) Fans—All Models 74

8 Humidifier 600 mm (24 in.) Units Only 77

8.1 Principal of Operation 77

8.2 Connecting Water Supply to the Humidifier 78

8.3 Humidifier Startup and Operation 79

8.3.1 Low Water Conductivity 79

8.4 Humidifier Canister Replacement 79

8.4.1 Removing the Old Canister 80

8.4.2 Mandatory Cleaning of the Drain Valve 81

8.4.3 Installing the New Canister 82

8.5 Humidifier Maintenance during Extended Shutdown 83

8.5.1 Humidifier Troubleshooting 83

8.5.2 Humidifier Troubleshooting Steps 85

9 Startup 87

9.1 Checks to Perform after Startup 88

9.2 Automatic Restart 89

9.3 Chilled Water Valve— All Chilled Water Models 90

9.4 Adjust Baffles to Direct Air Properly 91

9.4.1 Adjusting Baffles—600mm (24in.) 92

9.4.2 Adjusting Blocker Plate—600mm (12in.) 93

9.4.3 Adjusting Baffles—300mm (12 in.) 94

10 Troubleshooting 97

11 Maintenance 101

11.1 Safety Instructions 101

11.2 Facility Fluid and Piping Maintenance forWaterandGlycolSystems 102

Vertiv™ | Liebert® CRV Installer/User Guide | ii

11.3 Glycol Solution Maintenance 102

11.4 Spare Parts 102

11.5 Maintenance Schedule 102

11.6 Thermostatic Expansion Valve (TXV) Maintenance 104

11.6.1 Determining Suction Superheat 104

11.6.2 Adjusting Superheat Setting with the TXV 105

11.7 Compressor Maintenance 105

11.7.1 Compressor Oil 105

11.7.2 Replacement Compressors 105

11.7.3 Rotalock Valve on Digital Scroll Compressors 106

11.7.4 Unloading Solenoid(s) on a Digital Scroll Compressor 106

11.7.5 Compressor Electrical Failure (Motor Burnout) 107

11.7.6 Compressor Mechanical Failure 107

11.7.7 Replacing a Compressor with Mechanical Failure 107

11.8 Inspect and Replace the Air Filters—600 mm (24in.) Models 108

11.9 Inspect and Replace the Air Filters—300mm (12in.) Models 110

11.10 Condensate Drain and Condensate Pump System Maintenance 111

11.10.1 Condensate Drain 111

11.10.2 Condensate Pump, Dual Float 111

11.11 Air-Cooled Condenser and Drycooler Maintenance 112

11.12 Electric Reheat Maintenance 112

11.13 Fan Replacement 113

11.13.1 Replacing a Fan in 600mm (24in.) Models 113

11.13.2 Replacing a Fan in 300mm (12in.) Models 114

11.14 Considerations when Dismantling the Unit 115

11.15 F-Gas Regulation (EC) No. 842/2006 116

12 Preventive Maintenance Worksheet 119

Appendices 125

Appendix A: Technical Support and Contacts 125

Appendix B: Model Number Nomenclature Detail 127

Appendix C: Submittal Drawings 131

Vertiv™ | Liebert® CRV Installer/User Guide | iii

Vertiv™ | Liebert® CRV Installer/User Guide | iv

Vertiv Liebert®CRV Installer/User Guide

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® CRV. 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, notices and installation, operating and safety instructions on the unit and in this manual. Follow all installation, operation and maintenance instructions and all applicable national and local building, electrical and plumbing codes.

Any operation that requires opening doors or equipment panels must be carried out only by properly-trained and qualified personnel.

To identify the unit model and serial number for assistance or spare parts, locate the identification label on the unit. The label is inside the door on 600 mm (24 in.) units and at the electrical box on 300 mm (12 in.) units.

A warning label on the front and back panels reminds users that:

• The Liebert® CRV restarts automatically

• The main switch must be opened before opening the internal compartments for any operation.

WARNING! Arc flash and electric shock hazard. Open all local and remote electric power-supply disconnect switches, verify with a voltmeter that power is Off and wear appropriate, OSHA-approved personal protective equipment (PPE) per NFPA 70E before working within the electric control enclosure. Failure to comply can cause serious injury or death. Customer must provide earth ground to unit, per NEC, CEC and local codes, as applicable. 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® controller 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 the controller. 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.

Installation, service, and maintenance work must be performed only by properly trained and qualified personnel and in accordance with applicable regulations and manufacturers’ specifications. Opening or removing the covers to any equipment may expose personnel to lethal voltages within the unit even when it is apparently not operating and the input wiring is disconnected from the electrical source.

WARNING! Risk of over pressurization of the refrigeration system. Can cause explosive discharge of high pressure refrigerant, loss of refrigerant, environmental pollution, equipment damage, injury, or death. This unit contains fluids and gases under high pressure. Use extreme caution when charging the refrigerant system. Do not pressurize the system higher than the design pressure marked on the unit's nameplate.

1 Importan t Safety Inst ructions

Vertiv Liebert®CRV Installer/User Guide

WARNING! Risk of contact with high speed rotating fan blades. Can cause serious injury or death. Open all local and remote electric power-supply disconnect switches, verify with a voltmeter that power is off, and verify that all fan blades have stopped rotating before working in the unit cabinet or on the fan assembly. Fan motor controls can maintain an electric charge for 10 minutes after power is disconnected. If control voltage is applied, the fan motor can restart without warning after a power failure.

WARNING! Risk of top-heavy unit falling over. Improper handling can cause equipment damage, injury or death. Read all of the following instructions and verify that all lifting and moving equipment is rated for the weight of the unit before attempting to move, lift, remove packaging from or prepare the unit for installation. Unit weights are specified in Table 3.2 on page9

WARNING! Risk of unsecured unit rolling off pallet. Can cause equipment damage, injury or death. The unit is on casters. Ensure that the pallet is located on a flat surface before loosening the hardware securing the to its shipping pallet.

WARNING! Risk of hair, clothing and jewelry entanglement with high speed rotating fan blades. Can cause equipment damage, serious injury or death. Keep hair, jewelry and loose clothing secured and away from rotating fan blades during unit operation.

WARNING! Risk of contact with extremely hot and/or cold surfaces. Can cause injury. Verify that all components have reached a temperature that is safe for human contact or wear appropriate, OSHA-approved PPE before working within the electric connection enclosures or unit cabinet. Perform maintenance only when the system is de-energized and component temperatures have become safe for human contact.

WARNING! Risk of improper wiring, piping, moving, lifting and handling. Can cause equipment damage, serious injury or death. Installation and service of this equipment should be done only by qualified personnel who have been specially trained in the installation of air conditioning equipment and who are wearing appropriate, OSHA-approved PPE.

WARNING! Risk of improper wire sizing/rating and loose electrical connections. Can cause overheated wire and electrical connection terminals resulting in smoke, fire, equipment and building damage, injury or death. Use correctly sized copper wire only and verify that all electrical connections are tight before turning power On. Check all electrical connections periodically and tighten as necessary.

WARNING! Risk of humidifier canister meltdown, smoke and fire. Can cause fire suppression system activation, fire and smoke alarm activation, building evacuation, dispatching of fire and rescue equipment and personnel and water leaks resulting in expensive equipment or building damage, injury or death. Check steam generating humidifier electrode plugs to ensure that they are pressed firmly onto pins. Loose connections will cause overheating of cylinder and plugs.

1 Importan t Safety Inst ructions

Vertiv Liebert®CRV Installer/User Guide

CAUTION: Risk of contact with sharp edges, splinters, and exposed fasteners. Can cause injury. Only properly trained and qualified personnel wearing appropriate, OSHA-approved PPE should attempt to move, lift, remove packaging from or prepare the unit for installation.

CAUTION: Risk of improper moving, lifting and handling. Can cause equipment damage or injury. Only properly trained and qualified personnel should work on this equipment. Condenser fan modules weigh in excess of 125 lb (56.7 kg). Use proper lifting techniques and wear appropriate, OSHA-approved PPE to avoid injury and dropping the fan module during removal. Equipment used in handling/lifting, and/or installing the fan assembly must meet OSHA requirements. Use handling/lifting equipment rated for the weight of the fan assembly. Use ladders rated for the weight of the fan assembly and technicians if used during installation. Refer to handling/lifting, and/or installation equipment operating manual for manufacturer's safety requirements and operating procedures.

CAUTION: Risk of exposure to harmful noise levels. Can cause hearing injury or loss. Depending on the installation and operating conditions, a sound pressure level greater than 70dB(A) may arise. Take appropriate technical safety measures. Operating personnel must wear appropriate, OSHA-approved PPE and observe all appropriate hearing protection safety requirements.

NOTICE

CAUTION: Risk of excessive refrigerant line pressure. Can cause tubing and component rupture resulting in equipment damage and personal injury. Do not close off the refrigerant line isolation valve for repairs unless a pressure-relief valve is field installed in the line between the isolation valve and the check valve. The pressure relief valve must be rated 5% to 10% higher than the system design pressure. An increase in ambient temperature can cause the pressure of the isolated refrigerant to rise and exceed the system design pressure rating (marked on the unit nameplate).

Risk of improper power supply connection. Can cause equipment damage and loss of warranty coverage.Prior to connecting any equipment to a main or alternate power source (for example: backup generator systems) for startup, commissioning, testing, or normal operation, ensure that these sources are correctly adjusted to the nameplate voltage and frequency of all equipment to be connected. In general, power source voltages should be stabilized and regulated to within ±10% of the load nameplate nominal voltage. Also, ensure that no three phase sources are single phased at any time.

Risk of oil contamination with water. Can cause equipment damage.

Liebert® CRV systems require the use of POE (polyolester) oil. POE oil absorbs water at a much faster rate when exposed to air than previously used oils. Because water is the enemy of a reliable refrigeration system, extreme care must be used when opening systems during installation or service. If water is absorbed into the POE oil, it will not be easily removed and will not be removed through the normal evacuation process. If the oil is too wet, it may require an oil change. POE oils also have a property that makes them act as a solvent in a refrigeration system. Maintaining system cleanliness is extremely important because the oil will tend to bring any foreign matter back to the compressor.

1 Importan t Safety Inst ructions

Vertiv Liebert®CRV Installer/User Guide

NOTICE

Risk of improper refrigerant charging. Can cause equipment damage.

Refrigerant charge must be weighed into air-cooled compressorized systems before they are started. Starting scroll and digital scroll compressors without proper refrigerant charging can cause the compressors to operate at less than 5°F (–15°C) evaporator temperature and at less than 20psig (138kPa). Operation for extended periods at less than 20psig (138kPa) can cause premature compressor failure.

NOTICE

Risk of clogged or leaking drain lines and leaking water supply lines. Can cause equipment and building damage.

This unit requires a water drain connection. Drain lines must be inspected at startup and periodically, and maintenance must be performed to ensure that drain water runs freely through the drain system and that lines are clear and free of obstructions and in good condition with no visible sign of damage or leaks. This unit may also require an external water supply to operate.

Improper installation, application and service practices can result in water leakage from the unit. Water leakage can result in catastrophic and expensive building and equipment damage and loss of critical data center equipment.

NOTICE

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

We recommend installing a monitored fluid detection system to immediately discover and report coolant fluid system and condensate drain line leaks.

Risk of piping system corrosion and freezing fluids. Can cause leaks resulting in equipment and very expensive building damage. Cooling coils, heat exchangers and piping systems are at high risk of freezing and premature corrosion. Fluids in these systems must contain the proper antifreeze and inhibitors to prevent freezing and premature coil, heat exchanger and piping corrosion. The water or water/glycol solution must be analyzed by a competent local water treatment specialist before start up to establish the inhibitor and antifreeze solution requirement and at regularly scheduled intervals throughout the life of the system to determine the pattern of inhibitor depletion.

The complexity of water/glycol solution condition problems and the variations of required treatment programs make it extremely important to obtain the advice of a competent and experienced water treatment specialist and follow a regularly scheduled coolant fluid system maintenance program.

Water chemistry varies greatly by location, as do the required additives, called inhibitors, that reduce the corrosive effect of the fluids on the piping systems and components. The chemistry of the water used must be considered, because water from some sources may contain corrosive elements that reduce the effectiveness of the inhibited formulation. Sediment deposits prevent the formation of a protective oxide layer on the inside of the coolant system components and piping. The water/coolant fluid must be treated and circulating through the system continuously to prevent the buildup of sediment deposits and or growth of sulfate reducing bacteria.

Proper inhibitor maintenance must be performed in order to prevent corrosion of the system. Consult glycol manufacturer for testing and maintenance of inhibitors.

1 Importan t Safety Inst ructions

NOTICE

Vertiv Liebert®CRV Installer/User Guide

Commercial ethylene glycol, when pure, is generally less corrosive to the common metals of construction than water itself. It will, however, assume the corrosivity of the water from which it is prepared and may become increasingly corrosive with use if not properly inhibited.

We recommend installing a monitored fluid detection system that is wired to activate the automatic closure of field installed coolant fluid supply and return shutoff valves to reduce the amount of coolant-fluid leakage and consequential equipment and building damage. The shutoff valves must be sized to close off against the maximum coolant fluid system pressure in case of a catastrophic fluid leak.

Risk of frozen pipes and corrosion from improper coolant mixture. Can cause water leaks resulting in equipment and building damage.

When the cooling unit or piping may be exposed to freezing temperatures, charge the system with the proper percentage of glycol and water for the coldest design ambient temperature. Automotive antifreeze is unacceptable and must NOT be used in any glycol fluid system. Use only HVAC glycol solution that meets the requirements of recommended industry practices.

NOTICE

Risk of no flow condition. Can cause equipment damage.

Do not leave the water/coolant fluid supply circuit in a no flow condition. Idle fluid allows the collection of sediment that prevents the formation of a protective oxide layer on the inside of tubes. Keep unit switched On and water/coolant fluid-supply circuit system operating continuously.

Risk of doorway/hallway interference. Can cause unit and/or structure damage. The unit may be too large to fit through a doorway or hallway while on the skid. Measure the unit and passageway dimensions, and refer to the installation plans prior to moving the unit to verify clearances.

Risk of improper water supply. Can reduce humidifier efficiency or obstruct humidifier plumbing.

Do not use completely demineralized water with this unit. The water must contain minerals for the electrode principle to work.

Do not use a hot water source. It will cause deposits that will eventually block the fill valve opening.

Risk of water backing up in the drain line. Leaking and overflowing water can cause equipment and building damage.

Do not install an external trap in the drain line. This line already has a factory installed trap inside the cabinet (except for 300 mm (12 in.)) Chilled water models). Installation of a second trap will prevent drain water flow and will cause the water to overflow the drain pan.

1 Importan t Safety Inst ructions

This line may contain boiling water. Use cooper or other material that is rated for handling boiling water for the drain line. Sagging condensate drain lines may inadvertently create an external trap.

Vertiv Liebert®CRV Installer/User Guide

NOTICE

Risk of damage from forklift. Can cause unit damage. Keep tines of the forklift level and at a height suitable to fit below the skid and/or unit to prevent exterior and/or underside damage.

NOTICE

Risk of improper storage. Can cause unit damage.

Keep the unit upright, indoors and protected from dampness, freezing temperatures and contact damage.

NOTICE

Risk of release of hazardous substances into the environment. Can cause environmental pollution and violation of environmental regulations.

The Liebert® CRV contains substances and components hazardous for the environment (electronic components, refrigerating gases and oils). At the end of its useful life, the Liebert® CRV must be dismantled by specialized refrigerating technicians. The unit must be delivered to suitable centers specializing in the collection and disposal of equipment containing hazardous substances.

NOTE: The Liebert indoor cooling unit has a factory installed high pressure safety switch in the high side refrigerant circuit. Consult local building codes to determine whether the Liebert® MC Condensers without receivers will require field provided pressure relief devices such as a fusible plug. A pressure relief valve is provided with Liebert® LeeTemp receivers.

Agency Listed

Standard 60 Hz units are CSA Certified to the harmonized U.S. and Canadian product safety standard CSA C22.2 No 236/UL 1995 for “Heating and Cooling Equipment” and are marked with the CSA c-us logo.

1 Importan t Safety Inst ructions

Vertiv Liebert®CRV Installer/User Guide

2 Nomenclature and Components

This section describes the model number for Liebert® CRV units and components.

2.1 Model Number Nomenclature

The tables describe the 25 digitconfigurationnumber. The 14 digit model number consists of the first 10 digits and last 4 digits of the configuration number.

For the full description of configuration and model number refer to Model Number Nomenclature Detail on page127 .

Model Number D igits 1 to 10 Model Details

1 2 3 4 5 6 7 8 9 1 0 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

C R 0 2 0 R A 1 C 7 S H 1 8 1 1 E L 1 0 P A — — —

Digits 1 -2 - Unit Fam ily Digit14 - Air Filter

Digits 3-5 - Nominal Capacity, kW Digit 15 - Water/Glycol Valve Type

Digit6 - Row-Based, Unit Depth Digit 16 - Enclosure

Digit7 - System Type Digit17 - High Voltage Options

Digit8 - Fan Type Digit18 - Option Package

Digit9 - Power Supply Digit19 - Liebert® IntelliSlot™ Housing

Digit10 - Cooling System Digit20 - Future Options

Digit11 - Humidifier Digit21 - Packaging With Ra mp

Digit12 - Control System Digit22 - Special Features

Digit13 - Reheat Digits 23-25 - Factory Configuration Number

Model Number D igits 11

to 14

2.2 Component Location

The unit component locations are described in the submittal documents included in the Submittal Drawings on page131 .

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

Table 2.1 Component Location Drawings

Docu ment Number Title

DPN003738 Component Location Diagram, 600mm (24in.) Models

DPN003583 Component Location Diagram, 30 0mm (12in.) Air Cooled Models

DPN003585 Component Location, 300mm (12in.) Water Glycol Cooled Models

DPN003584 Component Location, 300mm (12in.) Chilled Water Models

2 N omenclature an d Components

Vertiv Liebert®CRV Installer/User Guide

2.3 Cooling Configurations and Liebert® CRV Overview

The Liebert®CRV is a precision cooling unit available in compressorized (air, water, or glycol cooled) and chilled water configurations to be installed within a row of high density computing racks in a “hotaisle-coldaisle” configuration.

Air enters the rear of the CRV from the hot aisle, is filtered, cooled and conditioned, then discharged into the cold aisle. The CRV provides all the necessary functions of a standard Thermal Management unit, including cooling, heating, humidification, dehumidification, air filtration, condensate management, temperature control, alarm monitoring and data communication. (The 300 mm [12 in.] models do not provide heating, humidification or dehumidification.) The CRV is optimized for maximum cooling capacity in a minimal footprint.

The Liebert® CRV 300 series and 600 series Thermal Management units are meant for location within a row of heat generating IT equipment racks.

The extremely energy efficient components of the CRV are managed by the Liebert® iCOM™ control system. The iCOM control monitors the environment in real time with rack inlet sensors on the cooled by the in-row CRV. The information gathered allows optimization of performance and energy efficiency.

All operations and sensor data can be reported remotely via a variety of communication protocols, providing a built-in, rack-temperature monitoring system.

The supply-air baffle directs the air leaving the CRV to the racks, maximizing its effectiveness, reducing the chance for hot spots, and improving overall system efficiency. The angle and spacing of the baffle vanes series are optimized through CFD modeling, laboratory testing and real world installations.

All service and maintenance is performed through the front and rear of the unit, including all component replacement. All piping and electrical connections are made through the top or bottom of the unit.

Table 2.2 CRV Configurations

Series Width C oo ling Type Nom inal C oo ling Capacity, kW Input Power 60 Hz

600

300

24 in.

(600 m m)

12 in.

(300 mm)

Air

Water/Glycol

Air

Water/Glycol

Chilled Water 40

Air 19

Chilled Water 32

208 V/3 ph

460 V/3 ph

208-230 V/3 ph

460 V/3 ph-Wye

208-230 V/1 ph

208-230 V/3 ph

460 V/3 ph-Wye

120 V/1 ph

Water/Glycol 19

208-230 V/3 ph

460 V/3 ph-Wye

2 N omenclature an d Components

Vertiv Liebert®CRV Installer/User Guide

3 Pre-installation PreparationandGuidelines

NOTE: Before installing unit, determine whether any building alterations are required to run piping, wiring and duct work. Follow all unit dimensional drawings and refer to the submittal engineering dimensional drawings of individual units for proper clearances.

Refer to Model Number Nomenclature on page7 and the appropriate submittal drawings, to determine the type of system being installed and anticipate building alterations, piping and duct work needed.

The unit dimensions, pipe connection locations, and piping schematics are described in the submittal documents included in the Submittal Drawings on page131 .

• Verify that the floor is level, solid and sufficient to support the unit. See Unit Weights below for unit weights.

• Confirm that the room is properly insulated and has a sealed vapor barrier.

• For proper humidity control, keep outside or fresh air to an absolute minimum (less than 5% of total air

circulated in the room).

• Do not install a Liebert® CRV in an alcove or at the end of a long, narrow room.

• Install the units as close as possible to the largest heat load.

• Allow at least the minimum recommended clearances for maintenance and service. See the appropriate

submittal drawings for dimensions.

• We recommend installing an under floor leak detection system. Contact your Vertiv representative for

information.

3.1 Planning Dimensions

The unit, floor stand, and plenum dimensions are described in the submittal documents included in the Submittal Drawings on page131 .

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

Table 3.1 Dimension Planning Drawings

Docu ment Number Title

DPN001791 Cabinet Dimensional Data 600 m m (24 in.) Models

DPN002807 Cabinet Dimensional Data 300 mm (12 in,) Models

3.2 Unit Weights

Table 3.2 Shipping Weights

Dom estic Packaging, lb (kg) Export Packaging, lb (kg)

Model No .

Air Water/Glycol Chilled Water Air Water/Glycol Chilled Water

CR019 649(294) 687 (311) — 721 (327) 782 (355) —

CR032 — — 560 (254.0) — — 683 (309.8)

CR020 846 (384) 879 (399) — 953 (432) 986 (447) —

CR035 912 (414) 956 (434) — 1019 (462) 1063 (482) —

CR040 — — 835 (379) — — 942 (427)

3 Pre-installation Prep arationand Guidelin es

Vertiv Liebert®CRV Installer/User Guide

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3 Pre-installation Prep arationand Guidelin es

4 Equipment Inspection and Handling

WARNING! Risk of contact with sharp edges, splinters, and exposed fasteners. Can cause injury. Only properly trained and qualified personnel wearing appropriate, OSHA-approved PPE should attempt to move, lift, remove packaging from or prepare the unit for installation.

NOTICE

Risk of passageway interference. Can cause unit and/or structure damage. The unit may be too large to fit through a passageway while on or off the skid. Measure the unit and passageway dimensions, and refer to the installation plans prior to moving the unit to verify clearances.

Vertiv Liebert®CRV Installer/User Guide

NOTICE

Risk of damage from forklift. Can cause unit damage. Keep tines of the forklift level and at a height suitable to fit below the skid and/or unit to prevent exterior and/or underside damage.

NOTICE

Risk of improper storage. Can cause unit damage.Keep the unit upright, indoors and protected from dampness, freezing temperatures and contact damage.

Upon arrival of the unit and before unpacking:

• Verify that the labeled equipment matches the bill of lading.

• Carefully inspect all items for visible or concealed damage.

• Report damage immediately to the carrier and file a damage claim with a copy sent to Vertiv or to your sales

representative.

• For initial access, use a 7/32 in. Allen wrench for panel removal.

Equipment Recommended for Handling the Unit:

• Forklift

• Pallet jack

• Piano jacks

• Slings

• Spreader bars

4 Equipment Insp ection and Handl ing

Vertiv Liebert®CRV Installer/User Guide

4.1 Packaging Material

All material used to package this unit is recyclable. Please save for future use or dispose of the material appropriately.

4.2 Handling the Unit while Packaged

Transport the unit with a forklift or pallet jack.

When using a forklift or pallet jack:

• Make sure that the forks (if adjustable) are spread to the widest allowable distance that will fit under the skid.

• Make sure the fork length is suitable for the skid length. Skid length is 60in (1524mm)

• When moving the packaged unit, do not lift the unit any higher than 2to4in. (51to102 mm). All personnel

except those moving the unit must be kept 12ft (3.7m) or more from the unit while it is being moved.

• If the unit must be lifted higher than 4in. (102 mm), all personnel not directly involved in moving the unit must

be 20ft (5m) or farther from the unit.

4.3 Unpacking the Export Shipped 600 mm(24 in.) Unit

1. Remove the metal clips (12 places typical) that secure the top panel of the crate to the side panels, see Figure

4.1 on the facing page .

2. Use a Phillips head screw driver to remove all the wood screws (34 places typical) that secure the side panels

together and to the pallet, see Figure 4.1 on the facing page .

3. To remove the remaining packaging, start with Step 1 , of Unpacking the Domestic Shipped 600 mm(24 in.)

Unit on the facing page .

4 Equipment Insp ection and Handl ing

Figure 4.1 Metal Clips and Wood Screws on Crate

Vertiv Liebert®CRV Installer/User Guide

Item Description

1 Metal clips, typical 12 places

2 Wood screws, m inimum 34 places

4.4 Unpacking the Domestic Shipped 600 mm(24 in.) Unit

1. Use a 9/16 in. socket drive or wrench to remove the lag screws (4 places typical) that secure the ramp to the

pallet, see Figure 4.2 on the next page . Set the ramps aside for use later when preparing move the unit from the pallet.

2. Remove the exterior packaging from around the unit

NOTE: The bag may remain in place to protect from dust and to protect the unit panels, or it may be removed for immediate installation.

3. Remove the bag from the unit when ready to move off the pallet and install the unit. See Removing 600 mm

(24 in.) Units from the Pallet on the next page .

4 Equipment Insp ection and Handl ing

Vertiv Liebert®CRV Installer/User Guide

Figure 4.2 Lag Screws that Secure Ramps

4.5 Removing 600 mm (24 in.) Units from the Pallet

1. Remove front panel, see Figure 4.3 on the facing page

• Open the top panel door (with controller display).

• Using a 8 mm hex head or T30 Torx screwdriver, remove the screws securing the bottom front panel assembly, and set aside until instructed to re attach.

• Close and latch the top panel door.

2. Lower the 4 leveling feed to touch the pallet deck as shown in Figure 4.3 on the facing page . Open the rear, hinged door to access the rear leveling feet.

3. Using a 13 mm socket-drive or wrench, remove the screws that secure the shipping brackets to the side of the unit, 3 each side, see Figure 4.3 on the facing page .

4. Using a 9/16 in. socket drive or wrench, remove the lag screws that secure the shipping brackets to the pallet, 4 each side, see Figure 4.3 on the facing page .

5. Adjust the 4 leveling feet equally, to raise the unit off the shipping blocks, and remove the blocks, see Figure

4.3 on the facing page .

4 Equipment Insp ection and Handl ing

Figure 4.3 Preparing to Attach Ramps

Vertiv Liebert®CRV Installer/User Guide

Item Description

1 Leveling feet touching pallet, front view

2 13 mm hex head screw, 3 ea ch side

3 9/16-in. hex head screw, 4 each side

4 Leveling feet raise unit off shipping blocks, front view

6. Locate the ramps and attach to the pallet using the hook and loop strips, see Figure 4.4 on the next page , for placement of the strips.

7. Adjust the 4 leveling feet equally until casters make contact with the pallets, then continue to raise all the feet to the full up position, see Figure 4.4 on the next page .

IMPORTANT! Two or more properly trained and qualified personnel are required to move the unit to its installation location.

8. With two or more personnel, move the unit from the pallet, to the ramps, to the floor, and then to the installation location.

4 Equipment Insp ection and Handl ing

Vertiv Liebert®CRV Installer/User Guide

Figure 4.4 Ramps Attached and Leveling Feet Raised

Item Description

1 Leveling feet fully raised. Casters ready to roll.

4.6 Unpacking the Export Shipped 300 mm(24 in.) Unit

1. Remove the metal clips (12 places typical) that secure the top panel of the crate to the side panels, see Figure

4.5 on the facing page .

2. Use a Phillips-head screw driver to remove all the wood screws (34 places typical) that secure the side panels together and to the pallet, see Figure 4.5 on the facing page .

3. To remove the remaining packaging, start with Step 1 , of Unpacking the Domestic Shipped 300 mm(12 in.)

Unit on the facing page .

4 Equipment Insp ection and Handl ing

Figure 4.5 Metal Clips and Wood Screws on Crate

Vertiv Liebert®CRV Installer/User Guide

4.7 Unpacking the Domestic Shipped 300 mm(12 in.) Unit

1. Use a 9/16 in. socket drive or wrench to remove the lag screws (4 places typical) that secure the ramp to the pallet, see Figure 4.6 on the next page . Set the ramps aside for use later when preparing move the unit from the pallet.

2. Remove the exterior packaging from around the unit

NOTE: The bag may remain in place to protect from dust and to protect the unit panels, or it may be removed for immediate installation.

3. Remove the bag from the unit when ready to move off the pallet and install the unit. See Removing 300 mm (12

in.) Units from the Pallet on the next page .

4 Equipment Insp ection and Handl ing

Vertiv Liebert®CRV Installer/User Guide

Figure 4.6 Lag Screws that Secure Ramps

4.8 Removing 300 mm (12 in.) Units from the Pallet

1. Locate the ramps and attach to the pallet using the hook and loop strips, see Figure 4.7 on the facing page , for placement of the strips.

2. Using a 13-mm socket-drive or wrench, remove the screws that secure the shipping brackets to the side of the unit, 3 each side, see Figure 4.7 on the facing page .

3. Using a 9/16-in. socket-drive or wrench, remove the lag screws that secure the shipping brackets to the pallet, 3 each side, see Figure 4.7 on the facing page .

IMPORTANT! Two or more properly-trained and qualified personnel are required to move the unit to its installation location.

4. With two or more personnel, move the unit from the pallet, to the ramps, to the floor, and then to the installation location.

4 Equipment Insp ection and Handl ing

Figure 4.7 Attach Ramps and Remove Shipping Brackets

Vertiv Liebert®CRV Installer/User Guide

Item Description

1 13 mm hex-head screw, 3 ea ch side

2 9-16 in. hex-head screw, 3 ea ch side

4 Equipment Insp ection and Handl ing

Vertiv Liebert®CRV Installer/User Guide

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4 Equipment Insp ection and Handl ing

Vertiv Liebert®CRV Installer/User Guide

5 Installing in Enclosure Row

Built-in casters let you roll the Liebert® CRV into position for installation. For 300 mm units, optional stabilizers reduce the likelihood of the module tipping over. These stabilizers, shown in Figure 5.1 on the next page , must be removed before the unit is positioned in the row. Adjustable leveling feet prevent it from moving after positioning, See Adjusting Base

Supports/Leveling Feet below .

Once positioned, secure the unit to the floor or to an adjacent cabinet.

Adjustable brackets for attaching the unit to an adjacent cabinet are included with each unit. A bracket to attach the unit to the floor is available from your Vertiv representative.

5.1 Adjusting Base Supports/Leveling Feet

1. After the unit is in its final installation position, open the display door and remove the lower front baffle panel using a 10 mm nut driver or T30 Torx Bit to prepare for installation.

2. Open the rear panel.

3. Using an adjustable wrench, adjust the four base supports, or feet, shown in Figure 5.1 on the next page . Ensure that the unit is level to avoid corrosion or health hazards caused by condensate accumulation.

4. Turning the base supports (leveling feet) clockwise, extends them, and lifts the unit one corner at a time.

5. Tighten the nut on the top of each foot to lock the feet. The nut on 600 mm (24 in.) units is inside the cabinet. The nut on 300 mm (24 in.) units is under the cabinet, as shown in Figure 5.2 on page23 .

5 In stalling in Enclosure Row

Vertiv Liebert®CRV Installer/User Guide

Figure 5.1 Caster Locations

Item Description

1 Rear of 300 mm (12 in.) unit, bottom view

2 Rear of 600 mm (24 in.) unit, bottom view

3 Caster, 1 at each corner

Stabilizer (optional), 1 at ea ch corner. Only available for 300 mm (12 in.) units.

5 Adjustable leveling foot, 1 at ea ch corner

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Figure 5.2 Adjust Leveling Feet

Vertiv Liebert®CRV Installer/User Guide

Item Description

1 600 mm (24 in.) unit

2 300 mm (12 in.) unit

3 Nut on top of foot.

4 Adjust foot with wrench

5 Adjust foot with wrench

6 Jam nut, secures foot and final height

7 Nut to raise/lower foot.

5.2 Optional Tie Down Brackets for 300 mm (12 in.) Units

An optional tie down bracket may be installed on the unit to secure it in the row. The bracket keeps the space between the cooling unit and adjacent equipment constant, preventing noise from vibration.

WARNING! Risk of electric shock and/or improper drilling. Can cause equipment damage, injury or death. Open all local and remote electric power disconnect switches, verify that power is off with a voltmeter and verify that no servers or other equipment is located in the intended area for drilling or use of mounting screws. Verify that there are no electric wires or equipment that may be damaged by the drill or by the resulting shavings and debris.

5.2.1 What’s Included

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• Brackets: 4 (2 piece, L-shaped components; for cabinets of different heights)

• Bracket tie-downs: 2 (flat brackets; for cabinets of same height)

• M6 bolts: 2

• M6 nuts: 2

• Washers: 2

• Self-tapping screws: 16

Vertiv Liebert®CRV Installer/User Guide

5.2.2 Tools Required

• Screwdriver, Phillips #2 Bit

• Drill

• Drill bit: 1/8” diameter

• 10 mm wrench or adjustable wrench

5.2.3 Installing Tie Down Brackets on300 mm(12 in.) andonCabinetsofDifferentHeights

To install the tie down bracket:

1. Insert the M6 bolt through the longest slot in the two-piece tie-down bracket as shown in Figure 5.3 on the facing page .

2. Secure the tie-down bracket loosely with the washer and M6 nut.

3. Position the tie-down bracket over the factory fabricated holes on the top of the Liebert® CRV and over the top of the adjacent cabinet as shown in Tie Down Bracket on Cabinets of Different Heights—300mm (12 in.) on the facing page .

4. Mark where the self-tapping screws will attach the tie down bracket to the adjacent cabinet.

5. Taking proper precautions to collect the metal shavings and protect equipment, drill holes in the adjacent cabinet for the two screws.

6. Use a vacuum cleaner or other method to remove all metal particles.

7. Position the bracket over the holes in the Liebert® CRV and the adjacent cabinet.

8. Insert and tighten the four screws.

9. Tighten the M6 nut installed in step 2 securely.

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