Vertiv Liebert LPC Series User manual

Liebert® LPC Series
Precision Air Conditioning
User Manual

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Vertiv I Liebert LPC I User Manual
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 effort 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.
•China
Website: www.Vertivco.com
E-mail: [e-mail]
Customer service hotline: [phone]
•Asia Pacific
Homepage: www.vertivco.com
E-mail: [e-mail]
For Technical Support, users may contact the nearest Vertiv Co. local sales office or service
centre.

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Vertiv I Liebert LPC I User Manual
Purpose of the Document
This document applies to the series of precision air conditioners and cooling solutions which
maintain an optimal environmental control of technological ecosystems at minimal operating
costs. This document gives an overview of the specifications, installation, and commissioning
& 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.
Styling used in this Guide
The styles used in the manual will be defined as mentioned in the following table:
Situation Description
Warning/Danger/Caution
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 effect on the reliability
of the device and security. Even for practices not
related to physical injury, the content under the
Warning heading is used for precautions which
need to be taken which, otherwise, could result in
equipment damage, performance degradation, or
interruption in service.
Note
The Note
section indicates additional and useful
information, including tips and tweaks. 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 mainstream stuff
also comes under the Note heading helping the
users get to grips with the definitions, concepts,
and terminologies used in the manual.
Version History
Issue Revision Change
31013548 V1.0 -

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Vertiv I Liebert LPC I User Manual
Table of Contents
1Product Overview.............................................................................. 10
1.1 Product Introduction .....................................................................................................10
1.2 Model Description ...........................................................................................................11
1.3 Model Nomenclature .....................................................................................................12
1.4 Components .....................................................................................................................13
1.4.1 Compressor.............................................................................................................................................................................. 13
1.4.2 Evaporator................................................................................................................................................................................. 13
1.4.3 Electronic Expansion valve (EEV)......................................................................................................................14
1.4.4 EC Fans.........................................................................................................................................................................................14
1.4.5 Infrared Humidifier ............................................................................................................................................................ 15
1.4.6 Electric Heaters.................................................................................................................................................................... 15
1.4.7 Filter-driers................................................................................................................................................................................16
1.4.8 Controller....................................................................................................................................................................................16
1.4.9 Liquid Indicator......................................................................................................................................................................17
1.4.10 Condenser ..................................................................................................................................................................................17
1.5 Optional Components ...................................................................................................... 18
1.5.1 Two stage electric heating........................................................................................................................................18
1.5.2 Plenum ..........................................................................................................................................................................................18
1.5.3 Multiple Temperature and Humidity sensors......................................................................................... 18
1.5.4 Air Filter........................................................................................................................................................................................18
1.5.5 SIC card ........................................................................................................................................................................................18
1.6 Operating Parameters ..................................................................................................... 19
1.6.1 Storage Environment...................................................................................................................................................... 19
1.6.2 Operating Environment................................................................................................................................................19
2Installation.......................................................................................... 21
2.1 Pre-installation ................................................................................................................... 21
2.1.1 Transportation and Movement............................................................................................................................. 21

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Vertiv I Liebert LPC I User Manual
2.1.2 Unpacking for Paper Packaging..........................................................................................................................22
2.1.3 Unpacking for Wooden Packaging....................................................................................................................23
2.1.4 Removal of external package................................................................................................................................. 24
2.1.5 Inspection...................................................................................................................................................................................25
2.2 Installation Preparation...................................................................................................26
2.2.1 Equipment Room Requirement.........................................................................................................................................................................................................................................................................................................................26
2.2.2 Installation Space requirements......................................................................................................................................................................................................................................................................................................................26
2.3 Mechanical Installation....................................................................................................27
2.4 System arrangement during installation ..................................................................28
2.5 System Installation ...........................................................................................................29
2.6 Product Dimensions ........................................................................................................ 30
2.6.1 Plenum Dimensions..................................................................................................................................................................................................................................................................................................................................................................................................30
2.6.2 Base pallet cut-out location dimensions....................................................................................................................................................................................................................................................................31
2.6.3 Positions & Dimensions of the Top-cover...........................................................................................................................................................................................................................................................31
2.6.4 Side panel Knock-out locations.........................................................................................................................................................................................................................................................................................................................32
2.7 Installation of the Indoor unit........................................................................................33
2.7.1 Installing the base................................................................................................................................................................................................................................................................................................................................................................................................................33
2.7.2 Vibration absorption...............................................................................................................................................................................................................................................................................................................................................................................................34
2.7.3 Installation of the indoor unit cabinet....................................................................................................................................................................................................................................................................................34
2.8 Installing the Condenser................................................................................................ 34
2.9 Piping for the unit ............................................................................................................. 34
2.9.1 Connecting the condensate drain pipe of the indoor unit...................................................................................................................................................35
2.9.2 Connecting the water inlet pipe of the infrared humidifier...............................................................................................................................................35
2.9.3 Connecting copper pipes between the indoor unit and condenser......................................................................................36
2.9.4 Installing the pipe extension kit..........................................................................................................................................................................................................................................................................................................................37
2.9.5 Charging the refrigerant and adding the refrigerant oil................................................................................................................................................................40
2.9.6 Removing Fastener & Vibration Absorbers..................................................................................................................................................................................................................................................41
2.9.7 Removal of the transportation fixing plate from the compressor.......................................................................................................41
2.9.8 Removal of the fastener of infrared humidifier...........................................................................................................................................................................................................................42

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Vertiv I Liebert LPC I User Manual
2.9.9 Removal of pipe fasteners.............................................................................................................................................................................................................................................................................................................................................................43
2.10 Inspection of Mechanical Installation checklist.................................................... 43
2.11 Electrical Installation....................................................................................................... 44
2.12 Wiring of the Indoor unit ................................................................................................ 44
2.12.1 Locating electrical ports of Indoor units.................................................................................................................................................................................................................................................................44
2.12.2 Connecting the power cable of the indoor unit........................................................................................................................................................................................................................45
2.12.3 Remote Temperature & Humidity Sensor placement............................................................................................................................................................................46
2.12.4 Connecting the Control Cables......................................................................................................................................................................................................................................................................................................................... 48
2.12.5 Connecting the water-under- floor sensor..................................................................................................................................................................................................................................................48
2.12.6 Remote Shutdown........................................................................................................................................................................................................................................................................................................................................................................................................... 48
2.12.7 Customized Alarm terminals.......................................................................................................................................................................................................................................................................................................................................... 48
2.12.8 External General Alarm............................................................................................................................................................................................................................................................................................................................................................................. 49
2.12.9 SIC Card............................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 49
2.12.10 Connecting the Solenoid valve of the Pipe Extension kit (Optional).............................................................................50
2.12.11 Outdoor Wiring of the Condenser..........................................................................................................................................................................................................................................................................................................50
2.12.12 Inspection of Electrical installation......................................................................................................................................................................................................................................................................................................51
2.12.13 Pre-Commissioning Checklist...........................................................................................................................52
3Commissioning ..................................................................................54
3.1 Adding the Refrigerant................................................................................................... 54
3.1.1 Packing ........................................................................................................................................................................................54
3.1.2 Vacuuming the system ................................................................................................................................................54
3.1.3 Service tools operation on the controller...................................................................................................54
3.1.4 Manual operation for evacuation mode.......................................................................................................54
3.1.5 Adding refrigerant oil..................................................................................................................................................... 55
3.1.6 The amount of refrigerant charge..................................................................................................................... 55
3.2 Troubleshooting................................................................................................................ 56
3.2.1 Tooling service connection .....................................................................................................................................56
3.2.2 Start-Up Guide ......................................................................................................................................................................57

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3.3 Commissioning steps.......................................................................................................58
3.3.1 Terms............................................................................................................................................................................................. 58
3.3.2 Check the power supply ............................................................................................................................................. 58
3.3.3 Detecting the electrical heating element................................................................................................... 58
3.3.4 Detecting the humidifier............................................................................................................................................. 59
3.3.5 Condenser detection......................................................................................................................................................59
3.3.6 Static charge ..........................................................................................................................................................................59
3.3.7 Dynamic filling.......................................................................................................................................................................59
3.3.8 Inspection after completion.....................................................................................................................................60
4Controller............................................................................................62
4.1 Display ...................................................................................................................................62
4.2 Control Keys ........................................................................................................................62
4.3 Indicators..............................................................................................................................63
4.4 Control Interface................................................................................................................63
4.4.1 Main interface..............................................................................................................................................................................................................................................................................................................................................................................................................................................................63
4.4.2 ShutdownInterface............................................................................................................................................................................................................................................................................................................................................................................................................................... 64
4.4.3 PasswordInterface...................................................................................................................................................................................................................................................................................................................................................................................................................................65
4.4.4 MenuStructure....................................................................................................................................................................................................................................................................................................................................................................................................................................................65
4.5 Main Menu ........................................................................................................................... 65
4.5.1 Setting parameters for the sub-menu...........................................................................................................66
4.6 User menu.............................................................................................................................67
4.6.1 Alarm Menu..................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 68
4.6.2 Alarm Status................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 68
4.6.3 Alarm History............................................................................................................................................................................................................................................................................................................................................................................................................................................................... 69
4.6.4 Alarm Setup..................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 69
4.6.5 Alarm Process...........................................................................................................................................................................................................................................................................................................................................................................................................................................................70
4.6.6 Temperature&HumiditySetup.................................................................................................................................................................................................................................................................................................................................................................70
4.6.7 System Status.............................................................................................................................................................................................................................................................................................................................................................................................................................................................. 71
4.6.8 SensorStatus................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 72

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Vertiv I Liebert LPC I User Manual
4.6.9 Power Status................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 72
4.6.10 System Setup.............................................................................................................................................................................................................................................................................................................................................................................................................................................................. 73
4.6.11 MonitoringSetup............................................................................................................................................................................................................................................................................................................................................................................................................................................. 73
4.6.12 Time/Date Setup............................................................................................................................................................................................................................................................................................................................................................................................................................................ 74
4.6.13 PasswordSetup................................................................................................................................................................................................................................................................................................................................................................................................................................................. 74
4.7 Display Setup ......................................................................................................................75
4.8 Run Hours .............................................................................................................................75
4.9 Temperature and Humidity graph ..............................................................................76
5General Maintenance ........................................................................78
5.1 Routine Monthly Inspection...........................................................................................79
5.2 Routine Bi-annual Inspection ....................................................................................... 80
5.3 Inspection of electrical connections........................................................................... 81
5.4 Visual Inspection of the control components ......................................................... 81
5.5 Filter maintenance.............................................................................................................82
5.6 Infrared Humidifier............................................................................................................83
5.7 Electric Heater....................................................................................................................83
5.8 Drainage check.................................................................................................................. 84
6Appendix............................................................................................... 85
6.1 Circuit Diagram .....................................................................................................................86

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Vertiv I Liebert LPC I User Manual
PART I
GENERAL INFORMATION

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Vertiv I Liebert LPC I User Manual
1Product Overview
1.1 Product Introduction
The Liebert LPC series is the next generation series of air conditioners that provide precise
environmental control. The Liebert LPC models are the latest in the long line of modern
enterprise-grade products from the Liebert family. Incorporating the high standards
associated with the Liebert name, the LPC series utilizes the latest technology, system
components, and streamlined manufacturing process.
Liebert LPC air conditioners are products that are specifically created and designed for the
testing laboratories and similar ecosystems which call for a high degree of accuracy and
precision (Liebert LPC series offers a temperature precision up to ± 0.5°C and humidity
precision up to ± 2 % RH). Various products such as tobacco, textiles, and paper are
extremely sensitive and quite fragile in texture and nature. Therefore, care should be taken
while testing these products in a laboratory as even a slight deviation in the testing
environment may lead to inaccurate results. Precision Air Conditioning must not only keep
room conditions within a specific range but also must have the precision to react quickly to a
drastic change in heat load and prevent wide temperature fluctuations. Liebert LPC series is
a range of air-conditioners specifically tailored for maintaining a suitable environment in the
testing labs and addresses the needs and challenges associated with it.
Liebert LPC model is an air conditioner that takes into consideration various factors such as
energy overcooling and avoiding hot spots, which are bottlenecks commonly encountered in
the precision air conditioning niche. The design of the LPC product is streamlined to support
high efficiency.
Figure 1-1 LPC Model

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Vertiv I Liebert LPC I User Manual
1.2 Model Description
The following section depicts the Model Description and various components that are an
integral part of the air conditioner models in the Liebert LPC series. Further on, the working
conditions and technical specifications will be discussed in the later sections.
Figure 1-2 Main Components

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Vertiv I Liebert LPC I User Manual
1.3 Model Nomenclature
The model of the LPC series AC is fully-defined by twenty-five digits, as shown in table 1.1.
Table 1.1
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
L 1 0 1 5 U A 1 3 8 H L 1 2 E 2 D 0 0 0 P A 0 0 0
Digit 1 Product Model Digit 15 Coil and Valves
L Liebert LPC E Standard DX Air cooled coil, EEV
Digit 2 Product Model
Digit 16 Enclosure options
1 Number of Modules/Bays 2 Gray Orange Peel Grain Coating
Digit 3 Cooling Capacity kW
Digit 17 Mains Switch High Voltage Option
0-9 Nominal Net Cooling Capacity - kW
D Main Non-Locking Disconnect
Digit 4 Cooling Capacity kW
Digit 18 Lock Out Low Voltage Option
0-9 Nominal Net Cooling Capacity - kW
0 None
Digit 5 Cooling Capacity kW Digit 19 Monitoring
0-9 Nominal Net Cooling Capacity - kW 0 RS485
Digit 6 Air Discharge S SICCard
U Upflow
Digit 20 Sensors
Digit 7 System Type
0 None
A Air Cooled
X Other Sensors
Digit 8 Airflow
Digit 21 Packaging
1 EC Plug FAN
P Standard Packaging
Digit 9 Power Supply
C Export Packaging
N 380-415V / 3ph / 50Hz + N Digit 22 Special Requirements
Digit 10 Cooling System A SFA -none
8 R-410A EC Compressor
Digit 23 Order Identifier
Digit 11 Humidification
0 Standard Static
H Infrared Humidifier
2 High ESP 200 Pa
Digit 12 Display
3 High Airflow/ESP other
L Large Display
X SFA Included
C Color Display
Digit 24 Order Identifier
Digit 13 Re-Heating
0 None
1 SCR Heater Std. 1 Stage L Air cooled-long piping>30m
2 SCR Heater Opt. 2 Stage
X SFA Included
Digit 14 Air Filter Digit 25 Order Identifier
2 G4 0 None
3 F5
B Back Air Return
5 F7
D Bottom Air Return
X SFAIncluded

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Vertiv I Liebert LPC I User Manual
1.4 Components
This section gives an overview of the main components, optional components and features in
the LPC series of air conditioners.
1.4.1 Compressor
The DC Inverter Scroll compressor (with variable frequency) used in the Liebert LPC series.
The advanced compressor with a highly efficient motor and wide capacity regulation range is
designed to deliver maximum cooling with low noise and significantly less vibration. Its
expansive speed range and variable speed design imparts a new level of control for light load
efficiency and dehumidification. This compressor is tailored for higher efficiency and
reliability. With CoreSense technology baked-in, it continues to function effectively across a
wide range of conditions. Its robustness and technology safeguards it even while operating it
in adverse conditions.
Figure 1-3 Inverter Scroll Compressor
1.4.2 Evaporator
Heat exchanger design and appropriate air distributions are crucial factors that determine
optimum performance. The Evaporator used in the Liebert LPC models consists of a fin-tube
heat exchanger for higher efficiency. The sophisticated design of the distributor ensures that
the refrigerant is distributed evenly in each loop, thereby improving the effectiveness of the
heat exchanger.

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Vertiv I Liebert LPC I User Manual
1.4.3 Electronic Expansion valve (EEV)
The EEV is designed for modulating control of the refrigerant mass flow with precision. The
EEV ensures effective control on super heating at the end of the evaporator and
simultaneously ensures that the compressor will never be filled by liquid from 10% to 100% of
its normal capacity.
Figure 1-4 shows the appearance of the EEV used in the Liebert LPC models:
Figure 1-4 Electronic Expansion Valve
1.4.4 EC Fans
The EC Fans used in the Liebert LPC models are energy-efficient and innovative with
integrated electronics and maintenance-free design. These fans provide a cost-effective way
to introduce energy-efficient technology by regulating the airflow and reducing fan input
power. Besides, the easy-to-connect facility bundled with the benefit of minimal wiring adds
to the high performance with a greater range of possible airflow rates.
Figure 1-5 shows the EC Fans used in the Liebert LPC model:
Figure 1-5 EC Fan

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Vertiv I Liebert LPC I User Manual
1.4.5 Infrared Humidifier
The infrared humidifier in the Liebert LPC series provides quicker and more responsive
operation which is quite important for mission-critical applications. The infrared humidifiers
use high intensity quartz over a stainless humidifier reservoir. These humidifiers reduce the
dependency of water quality and simultaneously achieve full capacity in quick time using
almost any water quality.
Figure 1-6 shows the basic functioning of an infrared humidifier:
Figure 1-6 Infrared Humidifier
1.4.6 Electric Heaters
The finned electric heaters used in the Liebert LPC series are highly reliable and
extremely productive. Stainless steel is the material used for manufacturing these heaters
with fin-tubular elements. The heaters perform at a quick pace and reduce the power
requirement during mission-critical workflow.
Figure 1-7 shows a sketch of a stainless steel electric heater:
Figure 1-7 Electric Heaters

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Vertiv I Liebert LPC I User Manual
1.4.7 Filter-driers
Moisture can have an adverse effect on the operation and life of a system in the refrigeration
cycle. To counter that effect, Filter-driers are used to filter out particles, and remove and hold
moisture to prevent it from circulating through the system.
1.4.8 Controller
The Controller adheres to the latest and highly advanced PID regulation technology. With
features, such as the baked-in ability to recover from a power failure and streamlined
usability, it has a simplistic user interface making it easy-to-operate. Power-packed with
fuzzy logic, it is an intelligent utility with dimensions of 128x64 (dot matrix) with frontal
displays and high voltage protection features. The operation time of the main components is
available through the menus. Configured with the RS485 port in compliance with the
communication protocol of Ministry of Information Enterprise, it ensures top reliability and
maximum efficiency.
An interesting development is the compatibility with Vertiv Co.’s remote monitoring-and-
management application. SiteWeb (the remote management application) gathers a
continuous stream of data related to vital health parameters such as DC Power, batteries,
and renewable power sources to name a few.
Figure 1-8 shows the appearance of the controller currently used in the Liebert Models:
Figure 1-8 Controller

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Vertiv I Liebert LPC I User Manual
1.4.9 Liquid Indicator
The liquid indicator works as a toolset used for observing the refrigerant state, specifically
the moisture content of the system. When the moisture content exceeds the standard or a
particular limit, the color will be changed indicating the irregularities in the moisture content.
1.4.10 Condenser
The Liebert range of Air Cooled Condensers offer unique benefits including sharp design,
antirust aluminum cabinets, low sound levels, and reliable operation over a wide range of
ambient conditions.
Figure 1-9 shows a pictorial depiction of the Condenser:
Figure 1-9 Condenser
Condenser sizing parameter
Sizing of the condenser is based on the ambient temperature as mentioned in the
Table 2.1.
Table 2.1
Ambient temperature
L1015
≤ 40
℃
LSF24-R3
> 40
℃
LSF32-R3
For more information on the condenser, refer to the separate condenser manual
which explains the entire condenser ecosystem in detail.

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Vertiv I Liebert LPC I User Manual
1.5 Optional Components
The Liebert LPC range of air conditioners has optional components that can be a part of the
overall configuration. These include two-stage electric heating, plenum, multiple temperature
and humidity sensors, and Air filters
1.5.1 Two stage electric heating
In Liebert LPC, a two-stage electric heater can be used for enhanced heating as per the user
requirements.
1.5.2 Plenum
According to the user requirements, the unit will be configured with a plenum as per the
dimensions mentioned in section 2.6.1 Plenum Dimensions). For a custom plenum, please
contact Vertiv Co. for the solution.
1.5.3 Multiple Temperature and Humidity sensors
As per the user requirements, there is a facility of using up to 5 sensors. Refer to the Remote
Temperature and humidity sensor placement section in Chapter 6 (Refer 6 - Appendix)
1.5.4 Air Filter
According to the user requirements, different kinds of filters based on their classification
standards such as F5 and F7 can be provided for different levels of filtering.
1.5.5 SIC card
SIC card with #77, #78 control panel is equipped with RS485 interface which is a standard
protocol for the MODBUS. RDU-SIC can be equipped with monitoring cards, as shown in
figure 1-10. The RJ45 interface is provided for customer access via USB port.
Figure 1-10

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Vertiv I Liebert LPC I User Manual
1.6 Operating Parameters
In this section, the environmental conditions will be discussed, which includes the Operating
and Storage environment:
1.6.1 Storage Environment
The table 1.2 defines the various storage aspects and requirements, which also includes the
Ambient Humidity, Ambient temperature, and Storage time conditions.
Table 1.2
Item
Requirements
General Requirements Indoor, clean and without dust
Ambient Humidity < 95% RH
Ambient Temperature
-25° C
～
+55° C
Storage Time
Total transportation and storage time should not
exceed six months. Otherwise, the performance needs
to be re-calibrated
1.6.2 Operating Environment
The table 1.3 defines the various requirements and aspects of the Operating environment,
including the Ambient Temperature, Protection Level, Attitude, and the voltage range.
Table 1.3
Item Requirements
Ambient Temperature
Indoor 18° C ~ 35° C
Outdoor -15° C ~ +45°C, if low temperature kit is used, the
lowest outdoor operating temperature is -34°C.
Protection Level IP20
Altitude
<1000m. If the altitude is above 1000m, then Derating will
occur. Please contact Vertiv™ for this resolution
Operating Voltage range 380～415 (-10%～+6%)V，3N～50/60Hz

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Vertiv I Liebert LPC I User Manual
PART II
INSTALLATION