Liebert PEX+ Series User manual

Liebert. PEX+ Series Air Conditioner
Disassembling Manual
Version V1.0
Revision date 2014-06-06
BOM 31012733
Emerson Network Power provides customers wit tec nical support. Users may contact t e
nearest Emerson local sales office or service center.
Copyrig t © 2014 by Emerson Network Power Co., Ltd.
All rig ts reserved. T e contents in t is document are subject to c ange wit out notice.
Emerson Network Power Co., Ltd.
Address: Block B2, Nans an I Park, No.1001 Xueyuan Road, Nans an District, S enz en 518055,
P. R. C ina
Homepage: www.emersonnetworkpower.com.cn
Customer service otline: 4008876510
E-mail: [e-mail]

Contents
C apter 1 Overview ................................................................................................................................................. 1
1.1 Cautions .................................................................................................................................................... 1
1.2 Tools .......................................................................................................................................................... 1
1.3 Disassemble met od ................................................................................................................................. 1
C apter 2 Disassembling External Package And Cabinet Plate .............................................................................. 4
2.1 Disassembling external package ............................................................................................................... 4
2.2 Disassembling rear plate ........................................................................................................................... 4
2.3 Disassembling maintenance cover of fan .................................................................................................. 5
2.4 Disassembling left Cabinet Plate ............................................................................................................... 5
2.5 Disassembling wooden pallet .................................................................................................................... 6
C apter 3 Disassembling Electrical Parts ................................................................................................................ 8
3.1 Cautions .................................................................................................................................................... 8
3.2 Disassembling cables of #1 system fan ..................................................................................................... 8
3.3 Disassembling cables of #2 system fan ..................................................................................................... 9
3.4 Disassembling t e cables of stage 1 electric eater .................................................................................. 9
3.5 Disassembling cables of infrared umidifier ............................................................................................ 10
3.6 Disassembling cables of infrared umidifier assembly ............................................................................ 10
3.7 Disassembling cables of VSC03Z control fan assembly .......................................................................... 10
3.8 Disassembling t e cables of EBM fan assembly ..................................................................................... 11
3.9 Disassembling t e cables in cable c ute and pipes ................................................................................ 11
C apter 4 Disassembling Copper Pipes ................................................................................................................ 12
4.1 Disassembling copper pipes of #1 system ............................................................................................... 12
4.2 Disassembling copper pipes of #2 system ............................................................................................... 12
C apter 5 Disassembling Cabinet .......................................................................................................................... 13
5.1 Disassembling t e infrared umidifier assembly ...................................................................................... 13
5.2 Loosening parallel connection part .......................................................................................................... 14
5.3 Disassembling cabinet (disassembling #1 refrigerating cabinet) ............................................................. 14
5.4 Disassembling cabinet (disassembling #1 and #2 refrigerating cabinets)................................................ 15
C apter 6 Assembling Cabinet and Inspection ...................................................................................................... 16

Foreword
Liebert.PEX+ series precision air conditioner is developed based on the global R&D
platfor of E erson Network Power Co., Ltd (called “E erson” for short hereafter)
and is specially used for IDC.
This anual is applicable to the condition that the unit cannot pass through due to
narrow transportation space. The unit needs not to be disasse bled if the
transportation space is big enough for the unit to pass through.
This anual describes the disasse bly process in details, including overview
(containing the infor ation of disasse bly tools/cautions), disasse bling external
package of unit / cabinet plate, electrical parts, copper pipes and cabinets. The
disasse bly operations need to be proceeded by professional engineers with
reference to this anual. After disasse bly, ove the unit to the specified location
and asse ble the unit according to the reverse sequence of disasse bly procedures.
E erson will not be responsible for any loss caused by isoperation.

C apter 1 Overview 1
Liebert.PEX+Series Precision Air Conditioner Dissassemble Manual
Chapter 1 Overview
Liebert.PEX+ series precision air conditioner (called “Liebert.PEX+ air conditioner” for s ort ereafter) is medium-large
professional equipment. During t e transportation and moving process, if t e transportation space is small and t e unit
cannot pass t roug , t e modular and disassembly design of Liebert.PEX+ air conditioner provides convenience for
t e transporting. T is c apter introduces t e cautions, tools and met ods for disassembling Liebert.PEX+ series
precision air conditioner (called “Liebert.PEX+ air conditioner” for s ort ereafter).
1.1 Cautions
(1)Proceed t e disassembly process strictly according to t e following sequence:
Disassembling external package of unit / cabinet plates→Disassembling electrical parts→Disassembling copper
pipes → Disassembling structural parts.
(2)In t e disassembly process, if t ere is a need for using fire, be sure to take fire proof and t ermal proof
measures to avoid burning cables and t ermal preservation cotton.
(3)After t e unit is moved to t e specified location, t e sequence of assembly procedures is reverse to t at of t e
disassembly procedures.
(4)W en assembling t e electrical parts, be sure to restore all t e cables, cable ties and pipes.
1.2 Tools
T e tools used in t e disassembly process include: Insulation tapes, band ruler, knife, slot screwdriver, P ilips
screwdriver, S6 inner ex socket wrenc , pipe cutting knife, t ermal preservation pipe, pressure meter, welding gun
and cutting pliers.
1.3 Disassemble met od
Liebert.PEX+ air conditioner as two kinds of disassemble met ods: Met od 1 (disassembling #2 cooling cabinet),
Met od 2(disassembling #1 and #2 cooling cabinets).T e disassemble drawings and process of met od 1
(disassemble #2 cooling cabinet) are s own in Figure 1-1 and figure 1-2. T e disassemble drawings and disassemble
process of Met od 2 (disassemble #1 and #2 cooling cabinets) are s own in Figure1-3 and figure 1-4.
控制柜
1 号制冷柜
2 号制冷柜
﹟ 2 Refrigerating Cabinet
﹟ 1 Refrigerating Cabinet
Control Cabinet
Figure 1-1 Disassemble drawings of method 1

2 C apter 1 Overview
Liebert.PEX+Series Precision Air Conditioner Dissassemble Manual
Disassemble
external package
Disassemble
rear door
Disassemble
maintenance cover
of fan
Disassemble
wooden pallet
Disasse ble cables of
infrared hu idifier
Disasse ble bracket of
infrared hu idifier
Disassembl e
cables of fan
Configure
infrared
umidifi
er
Disasse mble cabinet
wit Met od 1
Loosen pa ral lel
connection part
Disassemb le copper
pi pes of #2 system
Y
N
Figure 1-2 Disassemble process of Method 1
控制柜
1 号制冷柜
2 号制冷柜
﹟ 2 Refrigerating Cabinet
﹟ 1 Refrigerating Cabinet
Control Cabinet
Figure 1-3 Disassemble drawings of Method 2

C apter 1 Overview 3
Liebert.PEX+Series Precision Air Conditioner Dissassemble Manual
Disas se ble exter nal
package
Disasse ble
rear door
Dis asse ble left door
Disasse ble
wooden pallet
Disasse ble the cables
of stage 1 electric heater
Disasse ble cables
of #1 s yste fan
Disasse ble cabinet
of ethod 1
Disasse ble copper
pipes of #2 s yste
Disasse ble cables
of infrared
hu idifier
Disasse ble copper
pipes of #1 syste
Loosen p
arallel
connection part
Disas se bly cabinet
with Method 2
Disasse ble cables of
infrared hu idifier
Disasse ble bracket
of infrared
Disasse ble
cables of fan
Configure infrared
hu idifier
Y
N
Loosen parallel
connection part
Disasse ble aintenance
cover of fan
Figure 1-4 Disassemble process of Method 2

4 C apter 2 Disassembling External Package And Cabinet Plate
Liebert.PEX+Series Precision Air Conditioner Dissassemble Manual
Chapter 2 Disassembling External Package
And Cabinet Plate
T is c apter focuses on t e disassembly process of external package, rear plate, fan cover, left plate and wooden
pallet of Liebert.PEX+ air conditioner.
2.1 Disassembling external package
Liebert.PEX+ air conditioner as two kinds of packages: Paper package and wooden package, and t is section
describe t e disassembly process wit paper package as an example. Use a knife to cut open t e wrapping film
around t e unit, disassemble t e oneycomb sandwic paper board, disassemble t e wooden pad on t e top of t e
unit and paper cover, as s own in 0.
蜂窝纸板
顶部木垫
纸顶盖 Paper cover
Top wooden pad
Honeyco b cardboard
Figure 2-1Illustration for disassembling external package (paper package
2.2 Disassembling rear plate
T e rear plate of t e unit is s own in Figure 2-2. Use a screwdriver to loosen t e fixing screws of t e rear plate (t ere
are 6 screws for eac plate), and disassemble t e rear Side plate of t e unit.

C apter 2 Disassembling External Package And Cabinet Plate 5
Liebert.PEX+Series Precision Air Conditioner Dissassemble Manual
后门板
螺钉
Rear plate
Screw
Figure 2-2 Illustration for disassembling the rear plate
2.3 Disassembling maintenance cover of fan
Open t e front door to reveal t e maintenance cover of t e fan, as s own in Figure 2-3. Use a screw driver to loosen
t e fixing screws of t e maintenance cover of t e fan, and t e no need to disassemble t e front door from t e cabinet.
风机维护盖板
Cover of fan
Figure 2-3 Illustration for disassembling the maintenance cover of fan
2.4 Disassembling left Cabinet Plate
If you need to disassemble t e electric control cabinet separately from t e unit, t en you need to disassemble t e left
side cabinet plate to prepare for disassembling t e electrical parts. Use a screwdriver to disassemble t e left Side
plate and t ere are totally 6 screws, as s own in 0.

6 C apter 2 Disassembling External Package And Cabinet Plate
Liebert.PEX+Series Precision Air Conditioner Dissassemble Manual
侧门板
螺钉
Side plate
Screw
Figure 2-4 Illustration for disassembling the left Side plate
2.5 Disassembling wooden pallet
Use outer ex socket wrenc to disassemble t e pallet and connection screws (8×90), slide t e unit to disassemble
t e pallet, as s own in 0.
T e location of connection screws of pallet of P2060~P2100 units is s own in Figure 2-6.
P1030~P1050 as not t e two screws respectively in location 5 and location 6.
栈板
联接螺钉 Connection screws
Pallet
Figure 2-5 Illustration for disassembling the wooden pallet

C apter 2 Disassembling External Package And Cabinet Plate 7
Liebert.PEX+Series Precision Air Conditioner Dissassemble Manual
1
2
3
4
5
6
Front side of cabinet
Figure 2-6 Illustration for the connection screws of the pallet of P2060~P2100 units

8 C apter 3 Disassembling Electrical Parts
Liebert.PEX+Series Precision Air Conditioner Dissassemble Manual
Chapter 3 Disassembling Electrical Parts
T is c apter describes t e disassembly process of electrical parts of Liebert.PEX+ air conditioner, including cautions,
disassembling cables of #1 system fan, disassembling cables of #2 system fan, disassembling cables of electric
eater, disassembling cables of infrared umidifier and disassembling cables of infrared umidifier assembly, and
disassembling cables of fan.
3.1 Cautions
(1)Only trained professional person can perform t e disassembly and assembly works of electrical parts;
(2)During disassembly process, be sure to protect t e cables against t e damage by s arp object, and also protect
t e cables against being pressed by eavy object or pulled excessively;
(3)Prior to operating t e eating tools suc as a welding gun, make sure all t e electrical parts are away from t e
eating source or effectively isolated;
(4)W en cutting t e cable ties, take care not to damage t e cables;
(5)Keep t e screws and terminals in safe place during disassembly process;
(6)W en disassembling t e fan wit VSC03Z fan controller, be sure to protect t e VSC03Z board against falling.
3.2 Disassembling cables of #1 system fan
T ere are 3 steps to disassemble t e cables of #1 system fan: Disassembling fan speed regulation signal cables,
disassembling t e power cables of fan, and disassembling t e fan alarm signal and RS 485 cables, as s own in A, B
and C in Figure 3-1.
C
B
1#风机调速信号
A
1#风机报警信号 1#风机485信号
(VSC03Z专有)1#风机功率电缆
＃ 1 fan speed regulation signal
Power cables of ＃ 1 fan alar signal of
＃ 1 fan RS 485 signals of ＃ 1 fan
(dedicated for VSC03Z)
Figure 3-1 Illustration for #1 system fan cables
 Note
 In A, t e cables labeled wit “ECF1-31” and “ECF1-32” are t e RS485 signal cables of #1 system fan, and if
t e unit as t e non-VSC03Z fan speed regulation board, do not connect t e cables, during disassembly, no
need to disassemble t ese cables;
 In B and C, t e terminals wit t e same label ave t e same voltage potential, and t e cables of t e #1 system
fan and t ose of #2 system fan must be differentiated strictly. Differentiate t em according to t e unit
conditions during disassembly operations.

C apter 3 Disassembling Electrical Parts 9
Liebert.PEX+Series Precision Air Conditioner Dissassemble Manual
3.3 Disassembling cables of #2 system fan
T ere are 3 steps to disassemble t e cables of #2 system fan: Disassembling fan speed regulation signal cables,
disassembling t e power cables of fan, and disassembling t e fan alarm signal and RS 485 cables, as s own in A, B
and C in Figure 3-2.
C
B
2#风机调速信号
2#风机报警信号 2#风机485信号
(VSC03Z专有)
2#风机功率电缆
A
＃ 2 fan speed regulation signal
Power cables of ＃ 2 fan alar signal of ＃ 2 fan RS 485 signals of
＃ 2 fan
(dedicated for VSC03Z)
Figure 3-2 Illustration for #2 system fan cables
 Note
 In A, t e cables labeled wit “ECF1-33” and “ECF1-34” are t e RS485 signal cables of #1 system fan, and if
t e unit as t e non-VSC03Z fan speed regulation board, do not connect t e cables, during disassembly, no
need to disassemble t ese cables;
 In B and C, t e terminals wit t e same label ave t e same voltage potential, and t e cables of t e #1 system
fan and t ose of #2 system fans must be differentiated strictly. Differentiate t em according to t e unit
conditions during disassembly operations.
3.4 Disassembling t e cables of stage 1 electric eater
T ere are two steps for disassembling t e cables of stage 1 electric eater, including disassembling t e power cables
of t e electric eater and disassembling t e signal cables of t e electric eater, as s own in A and B in Figure 3-3.
A
B
电加热功率电缆 电加热信号电缆
Power cables of electrical heater Signal cables of electrical heater
Figure 3-3 Illustration for the cables of the stage 1 electric heater
 Note
 In B, t e power cables of t e stage 1 electric eater ave two colors of red and blue. T e red cables are ot
cables and t e blue cables are neutral cables and are connected to terminal N.

10 C apter 3 Disassembling Electrical Parts
Liebert.PEX+Series Precision Air Conditioner Dissassemble Manual
3.5 Disassembling cables of infrared umidifier
T ere are two steps for disassembling t e cables of infrared umidifier, including disassembling t e power cables of
t e infrared umidifier and disassembling t e signal cables of t e infrared umidifier, as s own in A and B in Figure
3-4.
A
B
红外加湿功率电缆 红外加湿信号电缆
Power cables of hu idifier Signal cables of hu idifier
Figure 3-4 Illustration for the cables of the infrared humidifier
3.6 Disassembling cables of infrared umidifier assembly
T e operation of disassembling cables of infrared umidifier assembly is s own in 0. T e details of t e signal cables of
t e infrared umidifier are s own in t e drawing, you need to unplug t e ig water level signal switc signal cables,
and t e cables of t e water supply solenoid valve and t e dry burning prevention switc .
高水位传感器电缆
功率电缆扎线带 注水电磁阀、底盘
防干烧开关电缆
cable ties of
power cables High water level sensor cable
water supply solenoid valve
Cables of dry burning
prevention switch
Figure 3-5 Illustration for cables of infrared humidifier assembly
 Note
 T e power cables of infrared umidifier need not to be disassembled completely, and you only need to cut t e
cable ties of t e power cables at t e outer side of t e umidifier.
 W en restoring t e umidifier, be sure to bind t e cable ties.
3.7 Disassembling cables of VSC03Z control fan assembly
T e cables of t e VSC03Z control fan assembly are s own in Figure 3-6.

C apter 3 Disassembling Electrical Parts 11
Liebert.PEX+Series Precision Air Conditioner Dissassemble Manual
输入功率电缆
输入控制信号电缆
风机过热信号电缆
输出功率电缆
Input control signal cables
Over te perature signal
cables of fan
Output power cables
Input power cables
Figure 3-6 Illustration for the cables of the VSC03Z control fan assembly
 Note
 No need to disassemble t e input power cables and input control signal cables, owever, in order to avoid t e
risk of pulling t e cables of VSC03Z, you can disassemble t ese cables from t e VSC03Z board.
 T e connection cables between VSC03Z and t e fan are t e output power cables and fan over temperature
signal cables be sure to disassemble t em before disassembling t e fan.
 W en restoring t e cables, be sure to install t e OT terminal of t e output power cables according to t e
factory standard.
3.8 Disassembling t e cables of EBM fan assembly
T e cables of EBM fan assembly are s own in Figure 3-7.
功率电缆
信号电缆
power cables
signal cables
Figure 3-7 Illustration for the cables of EBM fan assembly
 Note
 W en restoring t e cables, be sure to re-bind t e cable ties according to t e factory standard.
3.9 Disassembling t e cables in cable c ute and pipes
After completing t e steps 3.1-3.8, pull out t e cables from t e cable c ute and pipes of t e electric control cabinet.
Pull out t e cables connected to t e refrigerating cabinet and put t e cables inside t e cabinet. Do not put t e cables
outside of t e cabinet to avoid damaging t e cables during transportation process.

12 C apter 4 Disassembling Copper Pipes
Liebert.PEX+Series Precision Air Conditioner Dissassemble Manual
Chapter 4 Disassembling Copper Pipes
Disassemble t e copper pipes after disassembling t e electrical parts. T is c apter describes ow to disassemble t e
copper pipes, including disassembling copper pipes of #1 system and disassembling copper pipes of #2 systems.
4.1 Disassembling copper pipes of #1 system
Use a knife to cut open t e air ex aust pipes and liquid pipes as s own in Figure 4-1. Use tapes to seal t e copper
pipes cut open to avoid infiltration of deposit or water.
Figure 4-1 Illustration for disassembling the copper pipes of #1 system
4.2 Disassembling copper pipes of #2 system
Use a knife to cut open t e air intake pipe and liquid pipe of anot er system be ind t e cabinet, as s own in Figure 4-2.
Use tapes to seal t e copper pipes cut open to avoid infiltration of deposit or water.
Figure 4-2 Illustration for disassembling the copper pipes of #2 system

C apter 5 Disassembling Cabinet 13
Liebert.PEX+Series Precision Air Conditioner Dissassemble Manual
Chapter Disassembling Cabinet
T is c apter describes t e operation of disassembling cabinet of Liebert.PEX+ air conditioner in details, including
disassembling t e infrared umidifier assembly and loosening parallel connection part, and disassembling cabinet.
5.1 Disassembling t e infrared umidifier assembly
Disassemble t e infrared umidifier assembly, and take out t e umidifier assembly, as s own in Figure 5-1.
红外加湿 Infrared hu idifier
Figure 5-1 Illustration for disassembling the infrared humidifier assembly
Install t e infrared umidifier assembly into t e intermediate cabinet as s own in Figure 5-2.
红外加湿
Infrared hu idifier
Figure 5-2 Illustration for installing the infrared humidifier assembly

14 C apter 5 Disassembling Cabinet
Liebert.PEX+Series Precision Air Conditioner Dissassemble Manual
5.2 Loosening parallel connection part
Use a ex socket wrenc to loosen t e connecting screws between t e unit and t e cabinet, as s own in Figure 5-3.
T e top part, middle part and bottom part of t e vertical pillar respectively ave 2 connection screws, so t ere are
totally 6 screws.
Figure 5-3 Illustration for disassembling the parallel connection part
5.3 Disassembling cabinet (disassembling #1 refrigerating cabinet)
Split t e unit into separate cabinets as s own in Figure 5-4. Pay attention to protect t e outer surface of t e cabinet
avoid scratc ing t e cabinet.
Figure 5-4 Illustration for disassembling the cabinet (disassembling #1 refrigerating cabinet