Vertiv Liebert SRC-G Series User manual

Liebert® SRC-G
User Manual
Precision Air Conditioning

Copyright by Vertiv Co. Ltd.
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 Co. Ltd.
Notice
The purchased products, services, and features are stipulated by the contract made between Vertiv Co.,
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, and 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 eort has been made in the preparation of this document to ensure the accuracy of
the contents, but all statements, information, and recommendations in this document do not constitute a
warranty of any kind, express or implied.
Vertiv Co., Ltd.
India
Homepage: www.vertiv.com
E-mail: [e-mail]
Asia Pacific
Homepage: www.vertiv.com.
E-mail: [e-mail]
For Technical Support, users may contact the nearest Vertiv Co. local sales oice or service center.

Purpose of the Document
This document applies to the series of precision air conditioners and cooling solutions which maintain optimal
environmental control of technological ecosystems at minimal operating costs. This document gives an
overview of the specifications, installation, commissioning, and maintenance procedures with troubleshooting
from the user perspective. The figures used in this document are for reference only.
Please read this manual carefully before installing, maintaining, and troubleshooting.
VertivTM Liebert® SRC-G Precision AC is a professional device, only professionals are permitted to access the unit
and is kept in a place where access is restricted to common people.
Styling used in this Guide
The styles used in the manual are defined as mentioned in the following table:
Situation Description
Warning/Danger/Cauon • The Warning/Danger/Caution note indicates a hazardous or potentially
harmful situation that can result in death or injury. It also indicates
instructions that need to be adhered to, failing which may result in
danger and safety issues thereby having an adverse eect on the
reliability of the device and security. Even for practices not related to
physical injury, to avoid equipment damage, performance degradation, or
interruption in service, follow the warning instruction carefully.
Note
• The Note section indicates additional and useful information. It also calls
attention to best practices and industry-best protocols that are
standardized and help make maximum utilization of the resources at
hand. Helpful information related to the product also comes under the
Note heading, helping the users with the definitions, concepts, and
terminologies used in the manual.
Version History
Version Revision Date Issue Changes
1.0 09.03.2022 ---

Safety Precautions and Measures
The important safety precautions and measures that should be followed during the installation and
maintenance 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.
Before working on the equipment, the user reads and considers all precautions, compliance and safety
measures. The unit control must be used exclusively for the purpose which it is intended for; the
manufacturer takes no liability for incorrect use or a modification to the unit control.
Adhere to all the Warnings and Cautionary measures included in the manual.
Please read this manual carefully before installing, maintaining and troubleshooting; especially the
Warning/Danger/Caution information in the User Guide. Apart from the User Guide, also pay attention
to the warning labels on the unit and its components.
This manual is retained for the entire service life of the unit. The user must read all the precautions, danger,
warnings, and cautionary measures mentioned in the manual prior to carrying out any operations on the unit.
Each unit is equipped with an electric insulation which allows the users to work in safe conditions. The main
switch is positioned in terminal box of the indoor unit. Before any maintenance operation, switch o the unit
with this electrical insulation switch to eliminate risks such as electrical shocks, burns, automatic restarting,
moving parts, and remote control. The protective covers plate on terminal box shall be removed only after the
electric power has been cut o by isolation switch.
In the following sections, notice the various cautionary measures and warnings that need to be read carefully
prior to installing or operating the system.
Disconnect the local and remote power supplies prior to working with the unit.
Prior to the installation process, read all the instructions, verify if all the parts are in place, and check the
nameplate to ensure the voltage matches the available utility power for the unit.
The controller doesn’t isolate power from the unit even in the O mode, and some internal components still
require and receive power during the O mode.
Another aspect is the presence of small objects in the fans bay that can result in object ejection during the
fan start-up and there is a probable risk of being hit by these objects resulting in grievous injury and causing
equipment damage.
The unit contains fluids and gases under high pressure. Therefore, the pressure should be relieved before
working with the piping.

Various components such as compressors, refrigerant discharge lines, and humidifiers are extremely hot during
the unit operation (if applicable). Therefore, allow suicient time for the unit to cool down before working with the
unit cabinet. Handle the unit with extreme caution and wear safety equipment such as protective gloves, safety
shoes, and arm protection while working with the hot compressors, discharge lines, and reheats.
There is a risk of water leaking that can damage both the equipment and the building. Eective water drain
connection and facilities should be available. Installation should be precise. Implementation of the application
and service practices should be appropriate and fault-free. Failure to comply with these norms will result in water
leakage from the unit. Water leakage can lead to massive damage and loss of critical equipment in the hosting
ecosystem. Therefore, care should be taken to ensure that the unit is not located directly above any equipment
that could sustain damage due to water and excessive moisture. Use of a leak detection system for the unit and
system supply lines are recommended by Vertiv.

Vertiv™| Liebert® SRC-G | User Manual i
Table of Contents
Table of Contents
Chapter 1: Overview...........................................................................................................................................................................1
1.1. Product Introduction.........................................................................................................................................................................................................1
1.1.1. Indoor Unit......................................................................................................................................................................................................................1
1.1.2. Outdoor Unit ..............................................................................................................................................................................................................2
1.1.3. Control Panel..............................................................................................................................................................................................................2
1.2. Model Description .............................................................................................................................................................................................................3
1.3. Basic Performance Parameters.............................................................................................................................................................................4
1.4. Main Components.............................................................................................................................................................................................................4
1.4.1. Indoor Unit ...................................................................................................................................................................................................................4
1.4.2. Outdoor Unit.............................................................................................................................................................................................................6
1.4.3. Control Panel............................................................................................................................................................................................................ 7
1.5. Additional Components (Optional)...................................................................................................................................................................8
1.5.1. Remote Monitoring..............................................................................................................................................................................................8
1.5.2. Installation Accessories.................................................................................................................................................................................8
1.6. Environmental Conditions Requirements...................................................................................................................................................9
1.6.1. Operating Environment Requirements............................................................................................................................................9
1.6.2. Storage Environment Requirements.................................................................................................................................................9
1.7. Refrigerant Charging Requirement ................................................................................................................................................................10
Chapter 2: Mechanical Installation................................................................................................................................. 11
2.1. Unpacking and Inspection........................................................................................................................................................................................11
2.2. Installation Notes.............................................................................................................................................................................................................12
2.3. System Installation Arrangement ....................................................................................................................................................................13
2.3.1. System Arrangement during Installation.....................................................................................................................................13
2.3.2. System Installation Mode......................................................................................................................................................................... 14

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Table of Contents
2.4. Mechanical Installation..............................................................................................................................................................................................16
2.4.1. Dimension and Weight of the Indoor Unit (Product Dimension).........................................................................16
2.5. Dimension and Weight of the Outdoor Unit...........................................................................................................................................18
2.6. Indoor Unit Installation Procedure..................................................................................................................................................................19
2.6.1. Equipment Room Requirements .........................................................................................................................................................19
2.6.2. Installation Space Requirements.......................................................................................................................................................19
2.6.3. Indoor Unit Installation............................................................................................................................................................................... 20
2.7. Installation of Outdoor Unit...................................................................................................................................................................................24
2.7.1. Installation Notes................................................................................................................................................................................................24
2.7.2. Holes Dimension of the Outdoor Unit Base............................................................................................................................24
2.8. Refrigeration Piping Connection General Principles ...................................................................................................................26
2.8.1. Quick Thread Connector Installation Notes............................................................................................................................ 27
2.8.2. Piping Connection Requirements.................................................................................................................................................... 27
2.8.3. Connecting Refrigerant Piping ...........................................................................................................................................................28
2.8.4. Pipe Connector Position............................................................................................................................................................................28
2.8.5. Connecting Drain Piping Of Indoor Unit................................................................................................................................... 30
2.9. Installation of Display Screen............................................................................................................................................................................. 30
2.10. Charging Refrigerant .................................................................................................................................................................................................31
2.10.1. Base Charging of Refrigerant...............................................................................................................................................................31
2.10.2. Adding Refrigerant for Long Piping System........................................................................................................................32
2.10.3. Long Connecting Pipe System with Lubricant Oil.........................................................................................................32
2.11. Mechanical Installation Checklist..................................................................................................................................................................33
Chapter 3: Electrical Installation....................................................................................................................................34
3.1. Task Introduction.............................................................................................................................................................................................................34
3.1.1. Cables to Connect On-site.........................................................................................................................................................................34

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Table of Contents
3.2. Installation Notes............................................................................................................................................................................................................35
3.3. Indoor Unit Connection.............................................................................................................................................................................................36
3.4. Outdoor Unit Connection.......................................................................................................................................................................................38
3.4.1. Control Panel Connection.........................................................................................................................................................................39
3.5. Electrical Installation Checklist .........................................................................................................................................................................42
Chapter 4: Start-up Commissioning...........................................................................................................................43
4.1. Start-up Inspection....................................................................................................................................................................................................... 43
4.2. Function Testing............................................................................................................................................................................................................44
4.2.1. Cooling........................................................................................................................................................................................................................44
4.2.2. Dehumidifying.................................................................................................................................................................................................... 45
Chapter 5: Controller Operation Instructions..................................................................................................46
5.1. Feature ......................................................................................................................................................................................................................................46
5.2. Graphic Screen Appearance...............................................................................................................................................................................46
5.3. Control Interface..............................................................................................................................................................................................................47
5.3.1. Function Buttons................................................................................................................................................................................................47
5.3.2. Power ON Screen ............................................................................................................................................................................................49
5.3.3. Summary Screen..............................................................................................................................................................................................49
5.3.4. Password Screen .............................................................................................................................................................................................50
5.3.5. Main Menu Screen............................................................................................................................................................................................51
5.4. Menu Structure.................................................................................................................................................................................................................52
5.4.1. Alarm Menu and Options...........................................................................................................................................................................52
5.4.2. Alarm Status..........................................................................................................................................................................................................53
5.4.3. Alarm History .......................................................................................................................................................................................................53
5.4.4. Alarm Setting ...................................................................................................................................................................................................... 54
5.5. Setpoint Menu...................................................................................................................................................................................................................55

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5.6. System Status Menu....................................................................................................................................................................................................55
5.6.1. Analog Status Options..................................................................................................................................................................................55
5.6.2. Input/Output Status Options................................................................................................................................................................56
5.6.3. Time/Date Options .........................................................................................................................................................................................56
5.6.4. Run Time Options............................................................................................................................................................................................57
5.6.5. On/O Record Options................................................................................................................................................................................57
5.7. System Menu.......................................................................................................................................................................................................................58
5.7.1. System Setup Options...................................................................................................................................................................................58
5.7.2. Outdoor Unit Options ...................................................................................................................................................................................59
5.7.3. Optional Function Options......................................................................................................................................................................60
5.7.4. Set Password Options .................................................................................................................................................................................60
5.8. Help Menu..............................................................................................................................................................................................................................61
5.9. Display Settings................................................................................................................................................................................................................62
5.10. Sequencing Status......................................................................................................................................................................................................62
5.11. Sequencing Setting.....................................................................................................................................................................................................63
Chapter 6: System Operation and Maintenance ...........................................................................................65
6.1. Electrical Inspection......................................................................................................................................................................................................65
6.2. Indoor Unit Maintenance....................................................................................................................................................................................... 66
6.2.1. Filter............................................................................................................................................................................................................................... 66
6.2.2. Fan................................................................................................................................................................................................................................. 66
6.2.3. Drain Pipe ................................................................................................................................................................................................................67
6.2.4. Power SPD............................................................................................................................................................................................................. 68
6.2.5. Thermal Expansion Valve (TXV) ..................................................................................................................................................... 68
6.3. Outdoor Unit Maintenance .................................................................................................................................................................................. 69
6.3.1. Refrigeration System..................................................................................................................................................................................... 69

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Table of Contents
6.3.2. Air-cooled Condenser ................................................................................................................................................................................69
6.3.3. High-Pressure Switch and Low-Pressure Switch ............................................................................................................ 69
6.3.4. Compressor .......................................................................................................................................................................................................... 70
6.4. Monthly Routine Maintenance..........................................................................................................................................................................72
6.5. Routine Maintenance and Inspection (Semi-annually).............................................................................................................73
Chapter 7: Troubleshooting ................................................................................................................................................. 74
Appendix I: Menu Structure......................................................................................................78

Vertiv™| Liebert® SRC-G | User Manual 1
Overview
Chapter 1: Overview
This chapter introduces the model description, product introduction, basic parameters, main components,
optional components, and ambient requirements of Vertiv™Liebert® SRC-G Precision air conditioner
(hereafter Liebert SRC-G).
1.1. Product Introduction
The Liebert SRC-G is first of its kind innovative product with ‘zero’ footprint due to its wall mounted configuration.
The Liebert SRC-G is a small precise environment control system, specially designed for cooling the equipment
rooms. It is applicable in equipment rooms, computer rooms and similar eco-system. Featuring high reliability, it
can maintain a favorable environment for critical equipment such as sensitive equipment, industrial processing
equipment, communication equipment, and computers.
Liebert SRC-G is dedicatedly design to fit into small technological rooms. It is a wall mounted type unit, which has
maximum cooling capacity with nearly no footprint that helps in saving maximum space within equipment rooms.
It is specifically designed for easy serviceability from the front and sides of the unit. The unit design ensures even
air distribution in the small critical infrastructures.
1.1.1. Indoor Unit
Liebert® SRC-G has three models, Liebert® SRC03GES with 3 kW (0.9 TR), Liebert SRC07GES, Liebert
SRC07GET with 7 kW (2 TR), and Liebert SRC11GET with 11 kW (3.1 TR) cooling capacity respectively. Customers
can flexibly select the options according to the actual requirement of the equipment room.
No. Description No. Description
1 Top Mounting Bracket 5 Return air panels
2 Return air perforation 6 Panel hinges
3 Refrigerant in/out and Drain connections 7 SRC cabinet
4 Supply air grills
Figure 1-1 Liebert®SRC-G Indoor Unit

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Overview
1.1.2. Outdoor Unit
The outdoor unit is specifically designed for Vertiv™ Liebert®SRC-G Indoor unit, which comprises compressor as
an integral part of outdoor assembly.
No. Description No. Description
1 Condenser fan 3 Service valve
2 Outdoor unit cabinet 4 Electrical box cover plate
Figure 1-2 Liebert®SRC-G Outdoor Unit
Liebert SRC series is a comprehensive solution of indoor and outdoor units, Liebert SRC-G outdoor unit is a
integral part of Liebert SRC-G unit.
1.1.3. Control Panel
The control panel is designed for Libert SRC-G unit, comprised of controller, display and switchgear set.
No. Description No. Description
1 Cable gland set 4 Panel cabinet
2 Display 5 Cabinet door
3 Panel lock 6 Ventilation louvers
Figure 1-3 Microprocessor Controller Interface

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Overview
1.2. Model Description
Vertiv™Liebert® SRC-G series is fully-defined by 18 digits, as represented in Table 1-1.
Table 1-1 Liebert®SRC-G Model Nomenclature
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
S R C 0 7 G E S A S 0 S A B D 0 0 0
Digit 1, 2, 3 Product Model Digit 12 Compressor
SRC Small Room Cooling S Scroll
Digit 4,5 Net Cooling Capacity kW R Rotary
03, 07 &
11 Nominal Net Cooling Capacity - kW E Digital Scroll
Digit 6 Features Digit 13 Refrigerant
G Global A R410A
Digit 7 Fan C R407C
E EC Fan Digit 13 System Type
A AC Fan A Air-cooled Condenser
Digit 8 Power Supply Digit 14 Enclosure Color
S 230 V, 50 Hz B RAL9005
T 400 V, 50 Hz Digit 15 Packaging
Digit 9 Frequency D Domestic
A 50 Hz E Export
Digit 10 Controller Digit 16 Order Identifier
S Standard 0-9 Factory Code
PPACC Digit 17 Order Identifier
Digit 11 Monitoring 0-9 Factory Code
0 Monitoring Digit 18 Order Identifier
1 No Monitoring 0-9 Factory Code
The standard components are represented in ‘Bold Italic’ font in Table 1-1.

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Overview
1.3. Basic Performance Parameters
The basic performance parameters of the Vertiv™Liebert® SRC-G are shown in Table 1-2.
Table 1-2 Basic Performance Parameters of Liebert®SRC Units
Model Nominal Cooling Capacity* Power*
SRC03GES 0.93 TR 1.03 kW
SRC07GES 2.13 TR 2.27 kW
SRC07GET 2.28 TR 2.45 kW
SRC11GET 3.10 TR 3.10 kW
*Above mentioned capacity and power consumption are calculated at Indoor conditions of 24 °C /50% RH and
35 °C Outside ambient temperature.
Due to continuous upgrade of the unit, the technical parameter are subject to the change without prior
notice, therefore for the details of the parameters refer the respective nameplate of the unit.
1.4. Main Components
1.4.1. Indoor Unit
Liebert SRC-G indoor unit consists of evaporator, EC fan, thermal expansion valve, filter dryer, and and Surge
Protective Device (SPD). For optional component details, refer to Section 1.5.
• Cabinet
The cabinet of the unit is prepared by steel sheet of 1.2 mm thick, which is custom powder coated to protect
against corrosion with the air-stream insulation thickness of 10 mm; color code of the unit is RAL9005.
• Evaporator Coil
Evaporator is a hydrophilic coated fin-tube heat exchanger with high sensible heat factor (>0.9). The distributor
is designed and verified according to ensure that the refrigerant (R410A) is distributed evenly in each loop,
improving the eiciency of the heat exchanger to a great extent.
• EC Fan
The unit is fitted with one/two direct-driven, high eiciency, single inlet, backward curved, centrifugal ‘plug’ type
fan (s), with aluminum nozzle (s) and PA Plastic impeller (s). The fan motors are Electronically Commutated (EC),
IP54, with internal protection and speed regulation via controller signal. The fans are statically and dynamically
balanced.

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Overview
Figure 1-4 EC Fan
• Thermal Expansion Valve (TXV)
Vertiv™Liebert® SRC-G unit has an external equalizer type Thermal Expansion Valve (TXV) that collects
temperature and pressure signals simultaneously to accurately regulate the refrigerant flow into the evaporator.
Figure 1-5 Thermal Expansion Valve (TXV)
• Filter Dryer
The moisture can adversely aect the operations and service life of a system in the refrigeration life-cycle. In
order to rectify this condition the unit is equipped with a filter dryer that can filter out, remove, hold, and prevent
the moisture particles from circulating through the system.
Figure 1-6 Filter Dryer

Vertiv™| Liebert® SRC-G | User Manual 6
Overview
• Air Filtration
The unit is equipped with a G4/MERV8 nylon filter with of 90% down to 10 micron particle arrester eiciency. It
features compact structure and easy maintenance. It can be washed repeatedly.
• Return Air Temperature Sensor (PEX1142)
Vertiv™Liebert® SRC-G unit is provided with return air temperature sensor which not only reads the inlet air
temperature returning from the room, but also provides value of the relative humidity of the returning air. It is
used to modulate the cooling eect of the unit by controlling the return air temperature, and also maintains the
humidity by eliminating the excess moisture in the room.
Temperature limits are field adjustable via display interface. The cooling or dehumidification warning activates
when the temperature or humidity exceeds the threshold values respectively.
• Supply Air Temperature Sensor
Liebert SRC-G series is equipped with a Negative Temperature Coeicient (NTC) type supply air temperature
sensor which helps in monitoring supply air temperature of the uni.
1.4.2. Outdoor Unit
The Liebert SRC outdoor unit consists of compressor, condenser coil, and fan.
• Compressor
The Liebert SRC-G series outdoor unit consist of the rotary compressor for Liebert® SRC03GES and the scroll
compressor for Liebert® SRC07GES, Liebert® SRC07GET and SRC11GET models with high eiciency. It uses
environment-friendly refrigerant (R410A) and features low vibration, low noise and high reliability.
Figure 1-7 Scroll Compressor
• Condenser Coil
The unit is equipped with a uniquely designed hydrophilic fin-tube heat exchanger (condenser) with wavy fin
on the surface, which facilitate high heat transfer rate. The condenser also has easy cleaning feature thereby
enables easy maintenance of outdoor unit.

Vertiv™| Liebert® SRC-G | User Manual 7
Overview
• Fan
The Liebert SRC-G outdoor unit fan has axial flow blades with low noise. It also has a high performance single-
phase motor which enables airflow modulation based on compressor pressure reading as per set parameters.
Figure 1-8 Axial Flow Blade
1.4.3. Control Panel
• Microprocessor Controller
The Liebert®SRC-G unit is configured with graphics color screen display with simple user-friendly interface
operation. The multi-level password protection feature can eectively prevent unauthorized operation. It also
provides self recovery up on power failure; high & low voltage protection functions; phase loss protection; and
automatic phase-sequence switching upon anti-phase. The operation status of the components are available on
the respective menus.
No. Description No. Description
1 LCD screen 3 Alarm indicator
2 Run state indicator 4 Control buttons
Figure 1-9 Microprocessor Controller Screen
• Power SPD
The power SPD is used for surge over-voltage protection in second level (C-level) single-phase (or three-
phase) AC power supply. It provides status indication and alarm function of the unit, thereby facilitates easy
maintenance.

Vertiv™| Liebert® SRC-G | User Manual 8
Overview
1.5. Additional Components (Optional)
1.5.1. Remote Monitoring
Vertiv™Liebert® SRC-G series adopts the SNMP communication protocol; through the configured LAN port.
The Liebert SRC-G can communicate with the host computer and receives the control instructions of the host
software.
1.5.2. Installation Accessories
The Liebert SRC-G unit is recommended to be installed with accessories as per Table 1-3.
Table 1-3 Supplied Accessories for Dierent Models
Name of Item SRC03GES SRC07GES SRC07GET SRC11GET
Gas (Suction) pipe pipe 1/2” with
insulation 5/8” with insulation 5/8” with insulation 7/8” with insulation
Liquid (Discharge) pipe 3/8” with insulation 3/8” with insulation 3/8” with insulation 3/8” with insulation
Indoor power cable 3C x 1.5 mm23C x 1.5 mm23C x 1.5 mm23C x 1.5 mm2
Fan control cable 3C x 0.5 mm24C x 0.5 mm24C x 0.5 mm25C x 0.5 mm2
Outdoor power cable* 2C x 2.5 mm22C x 2.5 mm24C x 2.5 mm2 4C x 2.5 mm2
Fan and contactor 4C x 0.5mm2
Outdoor HP & LP cable 3C x 0.5 mm2
Outdoor pressure
sensor cable 3C x 0.5mm2
All field cables are recommended as armored cables in order to avoid external influence such as rat bite etc.

Vertiv™| Liebert® SRC-G | User Manual 9
Overview
1.6. Environmental Conditions Requirements
1.6.1. Operating Environment Requirements
The operating environment requirements for Liebert® SRC-G are given in Table 1-4.
Table 1-4 Operation Environment Requirements
Item Requirements
Installation position The maximum equivalent horizontal distance between indoor and outdoor units[1]: 60 m;
Vertical distance ΔH[2]: -5 m ≤ ΔH≤ 30 m
Installation mode Indoor unit: horizontal airflow mode (Wall mounted);
Outdoor unit: horizontal airflow mode
Ambient condition
range
Indoor: 21 °C to 30 °C/45% RH to 55% RH
Outdoor: -15 °C to +45 °C (standard model) (it can sustain up to 48 °C outside ambient
temperature)
Altitude < 1000 m, derating is required when location altitude is above 1000 m
Operating Power
range
SRC03GES: 1P, 230 V± 10%, 50 Hz ± 5%
SRC07GES: 1P, 230 V± 10%, 50 Hz ± 5%
SRC07GET: 3P, 400 V± 10%, 50 Hz ± 5%
SRC11GET: 3P, 400 V± 10%, 50 Hz ± 5%
1. For the equivalent lengths of components, refer to Table 2-8.
2. The value of ΔHis positive, if the outdoor unit is installed above the indoor unit; ΔH is negative, if the indoor
unit is installed above the outdoor unit.
1.6.2. Storage Environment Requirements
The storage environment meets the requirements of GB/T 4798.1-2005 and the requirements are listed in
Table 1-5.
Table 1-5 Storage Environment Requirements
Item Requirements
Storage environment Clean indoor without dust
Ambient humidity 5% RH to 95% RH
Ambient temperature -25 °C to +55 °C (transport environment temperature: -40 °C to +70 °C)
Storage time Total transportation and storage time should not exceed six months, otherwise the
performance of the system needs to be re-calibrated.

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Overview
1.7. Refrigerant Charging Requirement
Vertiv™Liebert® SRC-G is specifically designed for environment-friendly refrigerant (R410A) and the unit is
supplied with factory charged refrigerant suitable for 10 m piping distances to deliver optimum design condition
& eiciency. If the piping distance of the outdoor unit is more than 10 m, refer Section 2.8 for the details on the
quantity of refrigerant to be charged inside the system.
Do not use sub-standard quality refrigerant as it may cause an extensive damage to the system. Vertiv does
not undertake any responsibility for all the related consequences that are result from using a low quality or
an inferior refrigerant.