Vertiv VRC, VRC2, VRC3 User Manual

Vertiv I Liebert® ™ I User Manual

VRC Split System

VRC2 Series Rack Cooler VRC3 Series Condensing Unit

User Manual

VRC Split System

User Manual

Version

V1.3

Revision date

Aug 26, 2020

BOM

31014128

The content in this document is subject to change without notice. All rights, including rights of translation, reproduced by printing, copying or similar methods and even of parts are reserved. Violators will be liable for damages. All rights, including rights deriving from patent license or registration of a utility model or design, are reserved. No part of this document may be reproduced or transmitted in any form or by any means without the prior written consent of Vertiv Group Corp.

Notice

The purchased products, services and features are stipulated by the contract made between Vertiv Group Corp. and the customer. All or part of the products, services and features described in this document may not be within the purchasing scope or the usage scope. Unless otherwise specified in the contract, all statements, information recommendations in this document are provided "AS IS" without warranties, guarantees or representations of any kind, either express or implied. The information in this document is subject to change without notice. Every effort has been made in the preparation of this document to ensure the accuracy of the contents, but all statements, information recommendations in this document do not constitute a warranty of any kind, express or implied.

Vertiv

United States

Australia & New

Indonesia

Malaysia

Singapore

Service Calls

Zealand

Service Calls

1 800 543 2378

Service Calls

0817 988 2288

19 211 1668

64674218

General Inquiries

1300 367 686

General Inquiries

1 800 543 2778

General Inquiries

021 251 3003

3 7884 5000

64674218

1 800 222 5877

1800 065 345

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Austria, Benelux, Czech Republic, France, Germany, Hungary, Ireland, Italy, Poland, Russia, Spain, Sweden, Switzerland, UK, South Africa: 80011554499

Website: www.vertiv.com

For Technical Support, users may contact the nearest Vertiv local sales office or service center.

Purpose of the Document

This document applies to the VRC2 series and VRC3 series of cooling solutions which maintain an optimal environmental control mainly for technological ecosystems at minimal operating costs. This document gives an overview of the technical specification. The figures used in this document are for reference only. Please read this manual carefully.

Important Safety Instructions

The important safety instructions that should be followed during the installation and maintenance of the VRC Split System are described in the following sections.

Read the manual prior to installation and operation of the unit. Only qualified personnel should move, install, or service this equipment.

The user reads all of the precautions, compliance safety measures before working on the equipment. The unit control must be used exclusively for the purpose for which it is intended; the manufacturer takes no liability for incorrect use or modification to the unit control.

This manual is retained for the entire service life of the machine. The user must read all of the precautions, danger, warnings cautionary measures mentioned in the manual prior to carrying out any operations on the machine. Before performing any maintenance operation, switch off the machine to eliminate risks such as electrical shocks, burns, automatic restarting, moving parts remote control.

Adhere to all the Warnings and Cautionary measures included in this manual. In the following sections, look at the various cautionary measures and warnings that need to be read carefully prior to installing or operating the system.

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! The components of the unit are comparatively large and heavy. Therefore, there may be a risk when the containment collapses. The collapse may result in physical injury, fatality and damage to the equipment.

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.

WARNING! Risk of electric shock. Can cause equipment damage, injury or death. Open all local and remote electric power supply disconnect switches and verify with a voltmeter that power is off before working within any electric connection enclosures. 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 electric shock. Can cause injury or death. Open all local and remote electric powersupply disconnect switches and verify that power is Off with a voltmeter before working within the condensate pump electrical connection enclosure. 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 Liebert® controller.

WARNING! Do not power on the unit until authorized technical personnel have confirmed that the unit connections are correct.

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! During the operation of the precision air conditioner, very high voltage may be present in the equipment. Adhere to all of the notes and warnings marked on the equipment or contained in this manual, which may otherwise lead to an injury or fatality.

WARNING! Only qualified maintenance personnel can operate and handle the equipment. All maintenance and operation must follow the local laws, especially the regulations about the electric power, refrigeration, and production.

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.

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, OSHAapproved 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.

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: Comply with the manufacturer’s instructions before and during maintenance. Failure to observe this will result in the warranty becoming void. Adherence to the safety instructions is mandatory to ensure personnel safety and prevent any environmental impact apart from equipment damage. Unsuitable components will impede equipment performance and may cause equipment shutdown. Therefore, Vertiv recommends the use of Vertiv OEM or Vertiv-approved components.

CAUTION: Avoid touching or having skin contact with the residual gas and oils in the compressor. Wear long rubber gloves to handle contaminated parts. The air conditioning system contains refrigerant. The release of refrigerant is harmful to the environment.

CAUTION: Certain circuits carry lethal voltages. Only professional technicians are allowed to maintain the unit. Extra precautions should be taken when troubleshooting a live unit. Be particularly careful troubleshooting with the unit’s power switched on.

CAUTION: If jumpers are used for troubleshooting, make sure to remove the jumpers after troubleshooting. If the connected jumpers are not removed, they may bypass certain control functions causing damage to the equipment.

Preface

The Vertiv VRC2 series is a split-type cooling unit which should be installed at the bottom of the rack. It is designed to be installed inside any 480 mm (19 in.) 2 or 4-post rack, including those developed by Vertiv. The Vertiv VRC3 series is the split-type condensing unit designed for outdoor installation and must be installed with the Vertiv VRC2 series to form a complete system.

This manual focuses on the using instructions, including overview, instructions for installation preparations, mechanical installation, electrical installation, system startup and commissioning, controller operation, system operation and maintenance troubleshooting, etc.

Please read this manual especially the warning information carefully before installing, maintaining and

troubleshooting the equipment.

TABLE OF CONTENTS

1 Product Overview .............................................................................................................................................. 2

1.1 Product Introduction ......................................................................................................................... 2

1.2 Model Description ............................................................................................................................. 4

1.3 Model Nomenclature ........................................................................................................................ 4

1.4 Components ...................................................................................................................................... 5

1.5 Technical Specifications ..................................................................................................................... 9

2 Pre-Installation................................................................................................................................................. 13

2.1 Fittings ............................................................................................................................................. 13

2.2 Self-Prepared Materials ................................................................................................................... 13

2.3 Transportation and Movement ....................................................................................................... 14

2.4 Unpacking ........................................................................................................................................ 16

2.5 Equipment Installation Room Requirements................................................................................... 18

2.6 Environment .................................................................................................................................... 19

2.7 Installation Space Requirements ..................................................................................................... 19

2.8 Clearance Space .............................................................................................................................. 20

2.9 Weight Bearing Capacity ................................................................................................................. 22

2.10 Inspection ........................................................................................................................................ 22

3 Mechanical Installation .................................................................................................................................... 23

3.1 Installation Notes ............................................................................................................................ 23

3.2 System Installation Layout ............................................................................................................... 23

3.3 Installing the Unit ............................................................................................................................ 25

3.4 Connecting the Copper Pipes to the Unit ........................................................................................ 32

3.5 Refrigerant Charge ........................................................................................................................... 36

3.6 Installation/Pre-commissioning Check List ...................................................................................... 38

4 Electrical Installation ........................................................................................................................................ 39

4.1 Installation Notes ............................................................................................................................ 39

4.2 Cable Connection ............................................................................................................................ 39

4.3 Communication Cable Connecting .................................................................................................. 43

4.4 Installation Inspection ..................................................................................................................... 44

5 Controller Operation Instructions .................................................................................................................... 45

5.1 LCD Screen ....................................................................................................................................... 45

5.2 Control Buttons ............................................................................................................................... 45

5.3 ON Screen ........................................................................................................................................ 46

5.4 Normal Screen ................................................................................................................................. 46

5.5 Unit Working Icons .......................................................................................................................... 47

5.6 Menu ............................................................................................................................................... 47

6 Startup Commissioning .................................................................................................................................... 52

6.1 Preparations Before Commissioning ............................................................................................... 52

6.2 Start-up Inspection Checklist ........................................................................................................... 52

6.3 System Commissioning .................................................................................................................... 52

6.4 Commissioning Complete Inspection .............................................................................................. 53

7 System Operation and Maintenance ............................................................................................................... 54

7.1 Safety Instructions ........................................................................................................................... 54

7.2 Electrical Inspection ........................................................................................................................ 54

7.3 Indoor Unit Maintenance ................................................................................................................ 55

7.4 Condensing Unit Maintenance ........................................................................................................ 56

7.5 Electrical Connection Maintenance ................................................................................................. 57

7.6 Cooling System Maintenance .......................................................................................................... 58

7.7 Leakage Detection (F-gas) ............................................................................................................... 58

7.8 System Diagnosis Testing ................................................................................................................. 59

7.9 Maintenance Inspection Checklist .................................................................................................. 60

8 Troubleshooting ............................................................................................................................................... 61

8.1 Troubleshooting............................................................................................................................... 61

8.2 Fan Troubleshooting ........................................................................................................................ 62

8.3 Fault Diagnosis and Handling of Electronic Expansion Valve .......................................................... 62

8.4 Fault Diagnosis and Handling of the Air Conditioning System ........................................................ 62

Appendix I: System Diagram (Standard Unit) .......................................................................................................... 64

Appendix II: System Diagram (Low Ambient Unit) .................................................................................................. 65

Appendix III: Wiring Diagram (VRC200/VRC201 Unit) ............................................................................................. 66

Appendix IV:Wiring Diagram (VRC300/VRC301 Unit) ............................................................................................. 67

Appendix V:Wiring Diagram (VRC350/VRC351 Unit) .............................................................................................. 68

Appendix VI:Wiring Diagram (VRC202 Unit) ........................................................................................................... 69

Appendix VII:Wiring Diagram (VRC302 Unit) .......................................................................................................... 70

Appendix VIII:Wiring Diagram (VRC352 Unit) ......................................................................................................... 71

Suppliers Declaration of Conformity ....................................................................................................................... 72

Vertiv I VRC Split System I User Manual

PART I

GENERAL INFORMATION

Vertiv I VRC Split System I User Manual

1 Product Overview

The Vertiv™ VRC2 series and VRC3 series are split-type cooling units for utilization in the rack which does not permit any access to any unauthorized and unqualified personnel. If the rack is placed in shopping malls, light industry, or any business environment, it must be used only by professionally trained personnel. This chapter introduces the product description, model description, product appearance, and main components of the cooling unit.

1.1 Product Introduction

The unit is a split-type conditioner which is designed to be installed inside the rack and includes a separate indoor unit and outdoor condensing unit. The indoor unit is installed in the rack unit, which contains EC fan, evaporator coil and the electronic expansion valve. The condensing unit should be mostly installed external to the room in which the rack is placed as the unit includes compressor, condenser coil and condenser fan.

Primary technical details of the unit shown in Figure 1-1 are mentioned below:

• The unit can be installed inside the rack

• The airflow rate can be modulated based on site conditions

• The output cooling capacity modulates as per the cooling load demands

at site

• Operates on R410A refrigerant

• Quick installation and deployment being of a modular construction

• Less work and cost for installation compared to other air conditioners

• White space-saving owing to a relatively small-footprint and mounted

inside the rack utilizing lesser rack unit space

• With the unit installed inside the rack, the hot air from the rear side of the rack is drawn inside the unit and cold conditioned air is discharged from the front-side of the unit delivering it right in front of the server’s intake side.

• The unit can be installed on both the top and bottom of the rack inside the rack.

• The unit also can be installed at the ceiling outside the rack.

• The direction of supply air discharged from the front side of the unit can

be changed by adjusting the grilles, up or down.

• The cooling capacity is modulated automatically by the built-in control system and can range from 25% to 100%, about 0.9 kW to 3.5 kW. This makes the unit best-suited for part-loads or dynamic cooling loads.

• The unit is built-in with high efficiency and reliable components which include the compressor,

electronic expansion valve, EC-fan and an advanced controller specifically designed by Vertiv for this unit.

• Utilizes EC-fan technology for the evaporator fan which saves energy by varying the airflow rate

exactly as per the requirement.

• The condensing unit is equipped with a variable speed condenser fan with a speed variation

ranging from 30% to 100% of the entire operating range.

• Refer to Figure 1-2 for the nameplate description of the VRC2 Series Rack Cooler model:

Figure 1-1 Mounting

Location of the

Indoor Unit

Vertiv I VRC Split System I User Manual

UL Model:

Position

Description

Position

Description

Unit defined by 6 digits

Refrigerant charge of the indoor unit

Supply Power

Discharge Side Excessive Operating Pressure

Cooling capacity

Suction Side Excessive Operating Pressure

Indoor fan power in total

Minimum Circuit Amps

Indoor fan full load current

Maximum Overcurrent Protection

Outdoor fan power

Equipped with outdoor model

Outdoor fan full load current

Serial Number

Refrigerant Category

CE Model:

Position

Description

Position

Description

Unit defined by 6 digits

Heat Exchange Max Working Pressure

Supply Power

Max Allowable Pressure of the Unit

Refrigerant Category

Full load Current

Refrigerant charge of the unit

Net weight

CO2 Tonnes

Class of Equipment

Discharge Side Excessive Operating Pressure

Manufacturing Date

Suction Side Excessive Operating Pressure

Serial Number

Global Warming Potential

Figure 1-2 Product Nameplate and Model Description

Vertiv I VRC Split System I User Manual

1.2 Model Description

The physical appearance of air conditioner is shown in Figure 1-3.

Indoor unit Standard condensing unit

Low ambient condensing unit

Figure 1-3 Appearance of the Air Conditioner Units

The indoor unit is installed in the rack or at the ceiling. The condensing unit is mounted external to the rack, preferably outside in an exposed environment.

1.3 Model Nomenclature

The nomenclature of the units is shown in Figure 1-4.

Figure 1-4 Nomenclature

0 = 120 V, 1 Ph, 60 Hz 1 = 208/230 V, 1 Ph, 60 Hz 2 = 230V, 1 Ph, 50/60 Hz

0 = Standard Unit 5 = Low Ambient Unit

2 = Split System Indoor Unit 3 = Split System Condensing Unit

VRC=Vertiv Rack Cooler

VRC 2 0 0

Vertiv I VRC Split System I User Manual

Table 1-1 mentions the description of the indoor and condensing units as per the nomenclature.

Table 1-1 Model Coding Description

Model

Power Supply

Part Code

Description

VRC200

120 V, 60 Hz

01304032

Indoor unit, 3.5 kW, 120 V

VRC300

208/230 V, 60 Hz

01304036

Condensing unit, 3.5 kW, 208/230 V for compressor and 120 V for condensing fan

VRC350

208/230 V, 60 Hz

01304536

Low ambient condensing unit, 3.5 kW, 208/230 V for compressor and 120 V for condensing fan

VRC201

208/230 V, 60 Hz

01304034

Indoor unit, 3.5 kW, 208/230 V

VRC301

208/230 V, 60Hz

01304035

Condensing unit, 3.5 kW, 208/230 V for compressor 208/230 V for condensing fan

VRC351

208/230 V, 60 Hz

01304537

Low ambient condensing unit, 3.5 kW, 208/230 V for compressor 208/230 V for condensing fan

VRC202

230 V, 50/60 Hz

01304534

Indoor unit, 3.5 kW, 230 V

VRC302

230 V, 50/60 Hz

01304535

Condensing unit, 3.5 kW, 230 V for compressor 230 V for condensing fan

VRC352

230 V, 50/60 Hz

01304538

Low ambient condensing unit, 3.5 kW, 230 V for compressor 230 V for condensing fan

1.4 Components

The major components of the unit include the evaporator coil, condensate drain tray, evaporator EC fan, electronic expansion valve (EEV), inverter rotary compressor, condenser coil and condenser fan.

1.4.1 Indoor Unit

The components of the indoor unit are depicted in Figure 1-5.

Figure 1-5 Indoor Unit

Indoor fan

Suction

temp.

Pressure

transducer

EEV

Evaporator

Vertiv I VRC Split System I User Manual

Evaporator Coil

The slant evaporator coil provides maximum surface area for heat transfer which ensures the delivered SHR > 0.9 always. The coil is constructed from copper pipes with aluminum fins in a slit type configuration. With low air pressure difference across the coil even at higher air flow rates, the coil section is light and compact and has an easy access for removal and repair/replacement.

• Condensate Drain Tray

With a metallic condensate drain tray placed under the coil assembly, the entire condensate drain has easy disposal/removal from the unit with a precise condensate outlet connection.

• Evaporator EC Fan

The indoor unit is equipped with a high-efficiency EC fan made of aluminum that delivers high airflow rates to ensure the airflow demands are met during the entire operational time. The EC fan has a smooth speed variation across its operating speeds, working in synchronization with the entire system components to deliver the precise output capacity.

• Electronic Expansion Valve

The system is incorporated with an electronic expansion valve that monitors temperature and pressure signals simultaneously to maintain precise adjustment of the refrigerant flow. The electronic expansion valve can ensure even flow distribution of each end.

 Sensors

Sensors provide important support for the precise control and reliable operation of indoor and outdoor units. Figure 1-6 shows the position of the sensors in the indoor unit.

Figure 1-6 Indoor Unit Sensor Location

High pressure

transducer

Low pressure

transducer

Suction temperature

sensor

Supply air

temperature sensor

Return air temperature sensor

Water level sensor

Vertiv I VRC Split System I User Manual

1.4.2 Condensing Unit

The components of the condensing unit are depicted in Figure 1-7 and Figure 1-8.

Figure 1-7 Standard Condensing Unit Internal Parts

Figure 1-8 Low Ambient Condensing Unit Internal Parts

• Compressor

The condensing unit is equipped with an inverter rotary compressor that works on R410A refrigerant and which varies its cooling output capacity as per the cooling demands. It ensures that the cooling capacity of the unit precisely matches the cooling demand under all circumstances.

• Condenser Coil

The L-shaped condenser coil is designed for a maximum contact area. It is made of copper with aluminum slit fin configuration.

Inverter rotary

compressor

Condenser coil

Condenser fan

Condenser coil

Receiver

Inverter rotary

compressor

Discharge Hi-temp

switch

High pressure

switch

Discharge Hi-temp switch

High pressure

switch

Pressure switch

Head pressure valve

Solenoid valve

Vertiv I VRC Split System I User Manual

• Condenser Fan

The condensing unit is equipped with an AC fan which varies the operating speed as per the cooling variations of the compressor to always maintain a suitable condensing pressure.

• Low Ambient Module

The low ambient module is equipped with a receiver, a solenoid valve and a head pressure control valve. This module ensures that the air conditioner system can work at -34 °C (-29.2 °F).

Vertiv I VRC Split System I User Manual

1.5 Technical Specifications

The detailed technical specifications which include the mechanical and the electrical details are listed in Table 1-2.

Table 1-2 Technical Specifications

Parameters

Specification

Model

VRC200

VRC201

VRC202

VRC300

VRC301

VRC302

VRC350

VRC351

VRC352

Certification

UL 1995

(CSA C22.2 NO.236-11)

(EN 60335-1; EN 60335-2-40; EN 55014-1; EN 55014-2; EN 61000-3-2; EN 61000-3-3; EN 50581)

UL 1995

(CSA C22.2 NO.236-11)

(EN 60335-1; EN 60335-2-40; EN 55014-1; EN 55014-2; EN 61000-3-2; EN 61000-3-3; EN 50581)

UL 1995

(CSA C22.2 NO.236-11)

(EN 60335-1; EN 60335-240; EN 55014-1; EN 55014-2; EN 61000-3-2; EN 61000-3-3; EN 50581)

Cooling Capacity, kW

3.5

Air Volume, m3/h (CFM)

750 (441)

Max Power Input, kW

0.21

1.12

Input Voltage, Vac

L1+L2+G, 120 Vac

L1+L2+G, 208/230 Vac

L+N+PE, 230 Vac

L1+L2+G, 208/230 Vac

L+N+PE, 230 Vac

L1+L2+L3+G, 208/230 Vac

L+N+PE, 230 Vac

Full Load Amperage, A

2.1

1.7

1.5

7.2

6.5

7.2

6.5

Condenser FanFull Load Amperage, A

0.87

0.37

0.87

0.37

Liquid Line Solenoid Valve Full Load Amperage, A

0.13

0.08

Dimensions (W×D×H, mm (in.))

442×602×264 (17.40×23.70×10.39)

786×282×527 (30.94×11.10×20.75)

1158×282×527 (45.60×11.10×20.75)

Frequency, Hz

50/60

Color

EG7021 (Black)

G103 (White) IP Code

IPX4 (IEC 60529)

Net Weight, kg (lbs.)

23 (50)

44 (97)

68 (150)

Gross Weight, kg (lbs.)

51 (112)

70 (154)

85 (187)

Noise Level (tested within the rack)

<60 dB(A)

<55 dB(A)

Operation Temperature range, °C (°F)

18 (64.4) to 40 (104)

-15 (5) to 45 (113)

-34 (-29.2) to 45 (113)

NOTE:

• The capacity value is measured under the conditions of indoor temperature dry bulb/wet bulb 35 °C

(95 °F), 20.6 °C (69 °F) and outdoor temperature 35 °C (95 °F).

• At the same working conditions, the low-temperature outdoor unit has a reduced capacity compared

with the standard outdoor unit.

• There are two control methods, supply control and return control. The return control mode is suggested

to be set in an open environment, while the supply control mode is suggested to be set in an enclosed rack.

Vertiv I VRC Split System I User Manual

• Supply air temperature set point varies between 12.8 °C (64.4 °F) and 23 °C (73.4 °F ). The recommended

supply air temperature set point is 21 °C (69.8 °F ).

• When the VRC unit is used in a closed rack, the heat load should be evenly placed in rack and unused rack

position should be covered with blanking plates.

The maximum capacities vary with temperatures, as shown below.

Standard Condensing Unit Maximum Capacity, kW

Condenser Air Temperature

29.4 °C

(85 °F )

35 °C

(95 °F )

40 °C

(104 °F )

Evaporator Air Temperature to IT Devices 19 °C

(66 °F )

3.7

3.6

21 °C

(70 °F )

3.9

3.8

23 °C

(73 °F )

3.9

3.8

Standard Condensing Unit Maximum Capacity, kW

Condenser Air Temperature

29.4 °C (85 °F )

35 °C (95 °F )

40 °C (104 °F )

Evaporator Air Temperature to Cooling Module

29.4 °C

(85 °F )

3.4

3.3

2.8

35 °C

(95 °F )

3.8

3.7

3.2

40 °C

(104 °F )

4.0

3.9

3.4

Low Ambient Condensing Unit Maximum Capacity, kW

Condenser Air Temperature

29.4 °C (85 °F )

35 °C (95 °F )

40 °C (104 °F )

Evaporator Air Temperature to IT Devices 19 °C

(66 °F )

3.2

3.1

21 °C

(70 °F )

3.4

23 °C

(73 °F )

3.5

3.4

Low Ambient Condensing Unit Maximum Capacity, kW

Condenser Air Temperature

29.4 °C (85 °F )

35 °C (95 °F )

40 °C (104 °F )

Evaporator Air Temperature to Cooling Module

29.4 °C

(85 °F )

3.1

3.0

2.5

35 °C

(95 °F )

3.5

3.4

2.9

40 °C

(104 °F )

3.6

3.5

3.0

Vertiv I VRC Split System I User Manual

The minimum capacities vary with temperatures, as shown below.

Standard Condensing Unit Minimum Capacity, kW

Condenser Air Temperature

29.4 °C (85 °F )

35 °C (95 °F )

40 °C (104 °F )

Evaporator Air Temperature to IT Devices 19 °C

(66 °F )

0.92

0.90

0.88

21 °C

(70 °F )

0.94

0.92

0.90

23 °C

(73 °F )

0.96

0.94

0.92

Standard Condensing Unit Minimum Capacity, kW

Condenser Air Temperature

29.4 °C (85 °F )

35 °C (95 °F )

40 °C (104 °F )

Evaporator Air Temperature to Cooling Module

29.4 °C

(85 °F )

0.92

0.90

0.88

35 °C

(95 °F )

0.94

0.92

0.90

40 °C

(104 °F )

0.96

0.94

0.92

Low Ambient Condensing Unit Minimum Capacity, kW

Condenser Air Temperature

29.4 °C (85 °F )

35 °C (95 °F )

40 °C (104 °F )

Evaporator Air Temperature to IT Devices 19 °C

(66 °F )

0.91

0.89

0.87

21° C

(70 °F )

0.93

0.91

0.89

23 °C (73°F)

0.95

0.93

0.91

Low Ambient Condensing Unit Minimum Capacity, kW

Condenser Air Temperature

29.4 °C (85 °F )

35 °C (95 °F )

40 °C (104 °F )

Evaporator Air Temperature to Cooling Module

29.4 °C (85 °F )

0.91

0.89

0.87

35 °C (95 °F )

0.93

0.91

0.89

40 °C (104 °F )

0.95

0.93

0.91

Vertiv I VRC Split System I User Manual

PART II

INSTALLATION

Vertiv I VRC Split System I User Manual

2 Pre-Installation

The air conditioner is an equipment and requires installation works. The preliminary preparation is very important. This chapter details the pre-installation, including how to prepare the installation environment and space and reserve the maintenance space, the air conditioner running and storage environment requirement, and how to unpack and inspect. Please read this chapter carefully before installation.

2.1 Fittings

The fittings are shown in Figure 2-1.

Figure 2-1 Fittings

The usage of fittings is shown in Table 2-1. They are included in the package.

Table 2-1 Fittings Instruction

2.2 Self-Prepared Materials

The cables routed from the room to the unit and the circuit breakers must be prepared at the customer site or are to be obtained by the customer; the specifications for the same are given in the Table 2-2.

Fitting Utility

Usage

Quantity

M6 cage nut

Used with M6 pan-head screws for tightening pillars

M6 Pan-head screw

Used to install the VRC 20X unit

M5 center screw

Used to fasten the L-shape mounting rails

M6 Cage Nut

M6 Pan-head Screw

M5 Center Screw

Vertiv I VRC Split System I User Manual

Table 2-2 Self-Prepared Materials

Parts

Specifications

External circuit breaker 1

Please refer to FLA (Full Load Amperage) of indoor unit in Table 1-2

External circuit breaker 2

Please refer to FLA of condensing unit in Table 1-2

Input power supply cables for indoor unit

Please refer to FLA of indoor unit in Table 1- 2

Input power supply cables for condensing unit

Please refer to FLA of condensing unit in Table 1-2

Cables for condenser fan

Please refer to FLA of condenser fan in Table 1-2

Cables for liquid line solenoid valve (only used in VRC350, VRC351 and VRC352)

Please refer to FLA of liquid line solenoid valve in Table 1-2

Liquid copper pipe

Please refer to pipe connection of unit

Gas copper pipe

Please refer to pipe connection of unit

Communication line between indoor and condensing unit

Communication line with RJ45 ports

2.3 Transportation and Movement

The unit consists of an indoor unit and an outdoor unit. Both of them are comparatively heavy equipment and need to be moved by hand pallet truck or electrical forklift to the vicinity of the predecided location to be installed. Table 2-3, Figure 2-2 and Figure 2-3 show the dimensions of the unit’s component with the package.

Figure 2-2 Package Dimensions – Indoor Unit

Forklift direction

Vertiv I VRC Split System I User Manual

Figure 2-3 Package Dimensions – Condensing Unit

The unit with packing dimensions and weights are listed in Table 2-3:

Table 2-3 Packaging Dimensions

Component

Packaging

Range of Dimensions (Unit: mm (in.))

Weight with Package (Unit: kg (lbs.))

H W D

Unit with package

VRC200 VRC201 VRC202

Wooden pallet with cardboard box 460 (18.11)

760 (29.92)

830 (32.68)

51 (112)

VRC300 VRC301 VRC302

750 (29.53)

480 (18.90)

970 (38.19)

70 (154)

VRC350 VRC351 VRC352

755 (29.72)

480 (18.90)

1350 (53.20)

85 (187)

Figure 2-4 depicts the schematic diagram of a hand pallet truck and an electric forklift.

Figure 2-4 Hand Pallet Truck and Electric Forklift

If a hand pallet truck or an electric forklift truck is used, the tines of the hand pallet or electric forklift must be aligned with the center of gravity to prevent the package from toppling or falling over as depicted in Figure 2-5.

Forklift Direction

Forklift direction

Electrical forklift

Hand pallet truck

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