Emerson Chilled Water Series User manual

Next Generation Critical Cooling
for Room and Row
Liebert PEX
Efficiency And Reliability For High Availability Cooling
Chilled Water Models
User Manual

Liebert.PEX Chilled Water Series Air Conditioner
User Manual
Version V1.1
Revision date May 6, 2010
BOM 31011830
Emerson Network Power provides customers with technical support. Users may contact the
nearest Emerson local sales office or service center.
Copyright © 2010 by Emerson Network Power Co., Ltd.
All rights reserved. The contents in this document are subject to change without notice.
Emerson Network Power Co., Ltd.
Address: No.1 Kefa Rd., Science & Industry Park, Nanshan District 518057, Shenzhen China
Homepage: www.emersonnetworkpower.com.cn
E-mail: [email protected]

Contents
Chapter 1 Overview........................................................................................................................................................... 1
1.1 Model Description............................................................................................................................................... 1
1.2 Main Components............................................................................................................................................... 1
1.3 Remote Monitoring Software ............................................................................................................................. 2
1.4 Environmental Requirements ............................................................................................................................ 2
1.4.1 Operation Environment........................................................................................................................... 2
1.4.2 Storage Environment .............................................................................................................................. 3
Chapter 2 Mechanical Installation ................................................................................................................................... 4
2.1 Installation Preparation ...................................................................................................................................... 4
2.1.1 Transportation And Movement............................................................................................................... 4
2.1.2 Unpacking ................................................................................................................................................ 4
2.1.3 Inspection................................................................................................................................................. 5
2.1.4 Installation Notes..................................................................................................................................... 6
2.2 System Installation Arrangement ...................................................................................................................... 6
2.2.1 General Arrangement.............................................................................................................................. 6
2.2.2 Mechanical Parameters........................................................................................................................... 7
2.3 Installing Chilled Water AC Unit ...................................................................................................................... 14
2.3.1 Installation Requirement....................................................................................................................... 14
2.3.2 Installation Procedures ......................................................................................................................... 15
2.4 Piping................................................................................................................................................................. 19
2.5 Removing Transport Fastener And Vibration Absorber................................................................................ 21
2.6 Adjusting Water Level Regulator..................................................................................................................... 24
2.7 Installation Inspection ...................................................................................................................................... 25
Chapter 3 Electric Installation........................................................................................................................................ 26
3.1 Work Introduction And Installation Notes ...................................................................................................... 26
3.2 Wiring Of Chilled Water AC Unit...................................................................................................................... 26
3.2.1 Locating Electrical Interfaces............................................................................................................... 26
3.2.2 Connecting Power Cable Of Chilled Water AC Unit............................................................................ 27
3.2.3 Connecting Control Cables .................................................................................................................. 28
3.3 Installation Inspection ...................................................................................................................................... 29
Chapter 4 System Start-Up Commissioning ................................................................................................................. 30
4.1 Locating MCBs.................................................................................................................................................. 30
4.2 Start-Up Commissioning.................................................................................................................................. 32
4.2.1 Preparation Before Commissioning..................................................................................................... 32
4.2.2 Commissioning Procedures ................................................................................................................. 32
4.2.3 Inspection After Commissioning ......................................................................................................... 33
Chapter 5 iCOM Controller ............................................................................................................................................. 34
5.1 LCD .................................................................................................................................................................... 34
5.2 Button And Indicator Panel.............................................................................................................................. 34
5.3 Structure Chart Of Control Menu..................................................................................................................... 36

5.4 Startup Interface ............................................................................................................................................... 36
5.5 Main Interface.................................................................................................................................................... 36
5.6 USER MENUS.................................................................................................................................................... 37
5.6.1 PASSWORD ........................................................................................................................................... 37
5.6.2 SETPOINTS ............................................................................................................................................ 37
5.6.3 EVENT LOG............................................................................................................................................ 37
5.6.4 GRAPHICS.............................................................................................................................................. 39
5.6.5 SET ALARMS ......................................................................................................................................... 39
5.6.6 SENSOR DATA ...................................................................................................................................... 40
5.6.7 DISPLAY SETUP .................................................................................................................................... 41
5.6.8 TOTAL RUN HRS ................................................................................................................................... 42
5.6.9 SLEEP MODE ......................................................................................................................................... 43
5.6.10 SERVICE INFO ..................................................................................................................................... 43
5.6.11 ACTIVE ALARMS ................................................................................................................................. 43
5.7 SERVICE MENUS .............................................................................................................................................. 43
5.7.1 PASSWORD LEVEL............................................................................................................................... 44
5.7.2 SETPOINTS ............................................................................................................................................ 44
5.7.3 STANDBY ............................................................................................................................................... 45
5.7.4 WELLNESS............................................................................................................................................. 45
5.7.5 DIAGNOSTICS........................................................................................................................................ 48
5.7.6 SET ALARMS ......................................................................................................................................... 50
5.7.7 CALIBRATION........................................................................................................................................ 52
5.7.8 NETWORK SETUP ................................................................................................................................. 52
5.7.9 OPTIONS SETUP ................................................................................................................................... 53
5.7.10 SERVICE INFO ..................................................................................................................................... 54
5.8 ADVANCED MENUS.......................................................................................................................................... 54
5.8.1 PASSWORD LEVEL............................................................................................................................... 54
5.8.2 FACTORY SETUP .................................................................................................................................. 55
5.9 MBV Settings..................................................................................................................................................... 59
5.10 EVENT NAME AND DEFINITION .................................................................................................................... 60
Chapter 6 Application Of INTELLISLOT ........................................................................................................................ 64
6.1 Introduction Of Host Communication Card.................................................................................................... 64
6.2 Installing Host Communication Card .............................................................................................................. 65
6.3 Commissioning Host Communication Component ....................................................................................... 65
6.3.1 Setting HyperTerminal .......................................................................................................................... 66
6.3.2 Setting 485 Communication Card ........................................................................................................ 67
6.3.3 Setting TCP/IP Communication Card................................................................................................... 68
6.3.4 Setting SNMP Parameters Of TCP/IP Communication Card .............................................................. 70
6.4 Host Communication Networking Diagram .................................................................................................... 73
Chapter 7 System Operation And Maintenance ........................................................................................................... 74
7.1 System Diagnosis Test..................................................................................................................................... 74
7.1.1 Self-diagnosis Function........................................................................................................................ 74
7.1.2 Electric Control Part.............................................................................................................................. 74
7.2 Filter ................................................................................................................................................................... 75
7.3 Fan Kit................................................................................................................................................................ 76

7.3.1 Fan Bearing And Blades ....................................................................................................................... 76
7.3.2 Belt.......................................................................................................................................................... 76
7.3.3 Motor....................................................................................................................................................... 76
7.4 Infrared Humidifier............................................................................................................................................ 76
7.5 Electrical Heater................................................................................................................................................ 78
7.6 Water Flow Control Valve................................................................................................................................. 79
Chapter 8 Failure Diagnosis And Troubleshooting...................................................................................................... 80
Appendix 1 The Structure Chart Of Electric Control Box ............................................................................................ 83
Appendix 2 Circuit Diagram ........................................................................................................................................... 86
Appendix 3 The Structure Chart Of Micro-processing Controller Menu .................................................................... 87

Chapater 1 Overview 1
Liebert.PEX Chilled Water Series Air Conditioner User Manual
Chapter 1 Overview
The Liebert.PEX chilled water air conditioner (chilled water AC for short) is a medium-large sized precision
environment control system configured with electrical heater and humidifier, suitable for the environment
control of the equipment room or computer room. It uses the chilled water supplied by the cooling water units.
It aims to provide a sound operation environment for precision equipment, such as sensitive equipment,
industry processing equipment, communication equipment and computers.
This chapter introduces the model description, main components and environmental requirements of chilled
water AC.
1.1 Model Description
The model description of the chilled water AC is shown in Figure 1-1.
P3110VC2MS1RZ00
12345678910 11 12 13 14 15
Global PEX Chilled Water Model Nomenclature
Product Range
PPEX
No. Modules-Bays/Fans
1
2
3
One
Two
Three
Nominal kW
20, 30, 40 to 150
Air Path
F
G
U
V
D
Downflow (Forward Curve)
Downflow (EC Backward Curve)
Upflow (Forward Curve)
Upflow (EC Backward Curve)
Upflow Ducted (Forward Curve)
Cooling Type
CChilled Water
Cooling Control
2
3
2 way CWV, CW, zero compressors
3 way CWV, CW, zero compressors
Voltage
M400/3/50
iCOM Display
S
L
Small Display
Large Display
Reheat Type
1
2
0None
1 Stage
2 Stage
Humidifier
0
S
R
None
Infrared
Steam Generating
Factory Co nfiguration Number
Z
A-Z
A-Z
Australia & New Zealand
Options
Options
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Figure 1-1 Model description
1.2 Main Components
The chilled water AC unit includes heat exchanger, infrared humidifier, fan, electrical heater, water flow
control valve and micro-processing controller.
Heat exchanger
Use finned-tube heat exchanger with high heat emission efficiency. The model-specific distributions can
ensure the even distribution of chilled water in each loop and greatly improve the efficiency of the heat
exchanger, as well as minimize the water resistance of heat exchanging coil.

2 Chapter 1 Overview
Liebert.PEX Chilled Water Series Air Conditioner User Manual
Infrared humidifier
Configure with infrared humidifier which is easy for teardown, cleaning and maintenance. It is adjustable to a
wide range of water qualities, with fast startup and high humidifying efficiency.
Fan
Use forward centrifugal fan with high efficiency and reliability, large airflow and long blowing distance. With
the belt transmission mechanism, it is easy for maintenance. The user can also select electronically
commutated (EC for short) fan with backward blades. EC fan is energy-saving and space-saving with high
efficiency and low noise. It is also subject to stepless speed regulation. For the structure of EC fan downflow
unit, the solution of air supply by putting fan unit under floor is considered, which can significantly improve
the efficiency of air supply.
Electrical heater
Use screw finned U type stainless steel electrical heating tube, with fast heating speed and evenly distributed
heat volume.
Water flow control valve
The water flow control valve can adjust the chilled water flow quantity according to the cooling requirement. It
is connected to the system pipes with live joints, easy for field installation and maintenance, thus reducing
the project installation cost.
Micro-processing controller
The micro-processing controller of the chilled water AC uses an LCD screen with blue backlight and 128 × 64
dots. The user interface operation is simple. The multi-level password protection can effectively prevent
illegal operation. It also features power failure auto-restoration and high / low voltage protection function. The
operation time of components is available through the menus. The expert-level fault diagnosis system can
display the current fault information automatically, facilitating the maintenance. It can store up to 400 records
of historical events. The panel of micro-processing controller is shown in Figure 1-2.
Figure 1-2 Micro-processing controller panel
1.3 Remote Monitoring Software
The chilled water AC can communicate with the host computer through a configured communication port to
receive the control of the host software.
1.4 Environmental Requirements
1.4.1 Operation Environment
See Table 1-1 for details.
Table 1-1 Operation environment requirement
Item Requirement
Operation range Indoor temperature: 4°C ~ 40°C
Chilled water supply temperature: 5°C ~ 13°C
Altitude < 1000m. Above that, derating is required
Operation voltage range 400V (-10% ~ +10%), three-phase AC, 50Hz

Chapater 1 Overview 3
Liebert.PEX Chilled Water Series Air Conditioner User Manual
1.4.2 Storage Environment
See Table 1-2 for details.
Table 1-2 Storage environment requirement
Item Requirement
Storage environment Indoor, clean, no dust
Ambient humidity 5%RH ~ 85%RH (non-condensing)
Ambient temperature -20°C ~ +54°C
Storage time Total transportation and storage time should not exceed 6 months. Otherwise, the performance
needs to be re-evaluated

4 Chapter 2 Mechanical Installation
Liebert.PEX Chilled Water Series Air Conditioner User Manual
Chapter 2 Mechanical Installation
This chapter introduces the mechanical installation of the chilled water AC, including the transportation and
movement, unpacking, inspection, installation notes and installation procedures.
2.1 Installation Preparation
2.1.1 Transportation And Movement
Railroad transportation and shipping are the recommended means of transportation. If truck transportation is
unavoidable, choose roads that are less bumpy in order to protect the equipment.
The chilled water AC is heavy (see Table 2-1 for the weight parameters). It is recommended to use a
mechanical handbarrow such as an electric forklift when unpacking and moving the equipment to the place
closest to the installation site. Insert the tines of the forklift below the pallet, as shown in Figure 2-1. Align the
tines with the center of gravity to prevent the unit from falling over.
Figure 2-1 Fork direction
Keep the obliquity within 75° ~ 105° during the movement, as shown in Figure 2-2. Extreme incline is not
allowed.
105
75
Figure 2-2 Moving obliquity
2.1.2 Unpacking
Move the equipment to the place closest to the final installation site and then unpack it.
Follow the procedures below to unpack the unit:
1. Removing the side boards and top cover
The chilled water AC uses international packaging. You can use a hammer or straight screwdriver to
straighten the hook, as shown in Figure 2-3.

Chapter 2 Mechanical Installation 5
Liebert.PEX Chilled Water Series Air Conditioner User Manual
Figure 2-3 Straightening the hook
At first, straighten all the hooks that fix side board I, and remove side board I. Then straighten all the hooks
that fix side board II, and remove side board II. At last remove top cover III, as shown in Figure 2-4.
Kg
1790x950 x 2020mm
1816x976 x 2175mm
I
I
III
II
II
Figure 2-4 Removing side boards and top cover
2. Removing the pallet
The chilled water AC is fixed onto the pallet with M10 × 70 screws, as shown in Figure 2-5. You can use an M10
open-end spanner, a ratchet spanner or a sleeve to remove the fixing screws.
底板固
定
Pallet fixing screw (M10 70)
×
Figure 2-5 Fixing screw position of pallet
2.1.3 Inspection
After receiving the product, you should check it against the packing list. If any parts are found missing,
distorted or damaged, please report to the carrier immediately. If any covert defects are found, please report
to the carrier and the local office of Emerson Network Power Co., Ltd.

6 Chapter 2 Mechanical Installation
Liebert.PEX Chilled Water Series Air Conditioner User Manual
2.1.4 Installation Notes
To realize the designed performance and maximum product life, correct installation is vital. This section
should be used in conjunction with local industry standards for mechanical and electrical installations. Note
the following items:
1. The chilled water AC is designed for integrated floor installation. It should be installed on the floor of the
equipment room or computer room.
2. Before the installation, make sure that the installation environment meets the requirements (see 1.4
Environmental Requirements) and the building should be transformed to accommodate the construction work
of piping, wiring and ventilation ducts.
3. Follow the design drawings strictly when installing the equipment, and reserve the space for maintenance.
The engineering dimensions drawings provided by the manufacturer can serve as a reference.
2.2 System Installation Arrangement
2.2.1 General Arrangement
The general arrangement of the chilled water AC is shown in Figure 2-6.
Chille d wate r i nlet
Chille d wate r o utlet
Blance valve or isolation valve*
Water filler
Isolation
valve
Drain valve
Hose
interface
Welding interface of chilled
water inlet and outlet
Water flow regulating valve
BPHE coil
Exhaust valve
Balancing valve o r isolation valve*
Water filter
Figure 2-6 General arrangement diagram
Note
1. : Factory piping.
2. : Field piping (by technicians).
3. *: Components are not supplied by Emerson but are recommended for proper circuit operation and maintenance.
4. After the project installation, exhaust the AC unit before filling water to ensure the efficiency of the heat exchanger.
5. In winter, the AC unit in northern area does not operate for a long term; you must empty the water in AC unit to protect the
heat exchanger from frost cracking.

Chapter 2 Mechanical Installation 7
Liebert.PEX Chilled Water Series Air Conditioner User Manual
2.2.2 Mechanical Parameters
Dimensions
The dimensions of the chilled water AC are shown in Figure 2-7, Figure 2-8, Figure 2-9 and Table 2-1.
874
853
1970
853
1970
874
38166
470
853
1970
874
853
1970
874
Upflowunit(forwardfan) Upflowunit(backwardfan)
1970
874
853
853
1970
874
874
1970
853
280
320
853
1970
874
Downflowunit(forwardfan) Downflowunit(backwardfan)
Figure 2-7 One-bay series (unit: mm)

8 Chapter 2 Mechanical Installation
Liebert.PEX Chilled Water Series Air Conditioner User Manual
1704
1970
874
1704
1970
874
381
66
233470470
345
1970
874
1704
1704
1970
874
Upflowunit(forwardfan) Upflowunit(backwardfan)
1704
1970
874
1704
1970
874
1704
1970
874
280
320
1704
1970
874
Downflowunit(forwardfan) Downflowunit(backwardfan)
Figure 2-8 Two-bay series (unit: mm)

Chapter 2 Mechanical Installation 9
Liebert.PEX Chilled Water Series Air Conditioner User Manual
2553
1970
874
2553
1970
874
66
381
233470470
345470
382
1970
2553
874
2553
1970
874
Upflowunit(forwardfan) Upflowunit(backwardfan)
2553
874
1970
2553
1970
874
874
1970
2553
280
320
874
1970
2553
Downflowunit(forwardfan) Downflowunit(backwardfan)
Figure 2-9 Three-bay series (unit: mm)
Table 2-1 Dimension
Model Dimensions (W × D × H) (mm) Net weight (kg)
P1020 853 × 874 × 1970 ≤315
P1030 853 × 874 × 1970 ≤315
P1040 853 × 874 × 1970 ≤338
P1050 853 × 874 × 1970 ≤343
P2050 1704 × 874 × 1970 ≤476
P2070 1704 × 874 × 1970 ≤476
P2090 1704 × 874 × 1970 ≤505
P2100 1704 × 874 × 1970 ≤530
P3110 2553 × 874 × 1970 ≤656

10 Chapter 2 Mechanical Installation
Liebert.PEX Chilled Water Series Air Conditioner User Manual
Model Dimensions (W × D × H) (mm) Net weight (kg)
P3140 2553 × 874 × 1970 ≤706
P3150 2553 × 874 × 1970 ≤715
Plenum dimensions
You can select the air supply plenum with grids for the upflow system. The appearance of the plenum is
shown in Figure 2-10, Figure 2-11 and Figure 2-12. The detailed dimensions are listed in Table 2-2.
C
B
A
Figure 2-10 One-bay plenum
C
B
A
Figure 2-11 Two-bay plenum
C
B
A
Figure 2-12 Three-bay plenum
Table 2-2 Dimensions of plenum (unit: mm)
Type ABC
One-bay 867 853 400 (600, optional)
Two-bay 867 1704 400 (600, optional)
Three-bay 867 2553 400 (600, optional)

Chapter 2 Mechanical Installation 11
Liebert.PEX Chilled Water Series Air Conditioner User Manual
Note
If the height of the plenum selected for air conditioner unit exceeds 600mm, consult the factory for non-standard production.
Base cut-out location dimensions
The base cut-out position dimensions of the chilled water AC are shown in Figure 2-13, Figure 2-14 and Figure
2-15.
6070
45
50
5570
45
40 134.7
130.1
138.4
160
45 45
160
78.3
50
74.9
Condensed water drain hole
Chilled water drain hole
Chilled water inlet opening
Water inlet opening
for humidifier
Cable inlet/
outlet opening
4 bottom plate
fastening holes
One-bay series
74.9
130.155
70
40 146.4
50
78.3
45
120
45
45
120
50
6070
45
159.6
Condensed water drain hole
Chilled water drain hole
Chilled water inlet opening
Cable inlet/outlet opening
4 bottom plate fastening holes
Water inlet opening
for humidifier
Two-bay series
146.4
50
40
130.1 74.9
5570
45
159.6
78.3
70
4545
72.5
50
45
70 60
160
45
730
45
45
120
Condensed water drain hole
Chilled water drain hole
Chilled water inlet opening
Water inlet opening
for humidifier
Cable inlet/outlet opening
7 bottom plate fastening holes
Three-bay series

12 Chapter 2 Mechanical Installation
Liebert.PEX Chilled Water Series Air Conditioner User Manual
Figure 2-13 Base cut-out locations of the upflow series (unit: mm)
612
471
119
45
45
350
48
48.5
105
6590
72.5
45
88.5
45
72.5
130
50
29
56.8
Air supply outlet
Condensed water drain hole
Chilled water inlet opening
Chilled water drain hole
Water inlet opening for humidifier
Cable inlet/
outlet opening 4 bottom plate
fastening holes
One-bay series
1460
318471
29
45
350
48
48.5
1056590
70
471 96.8
120
45
50
45
88.5
130
45
70
Air supply outlet Air supply outlet
Condensed water drain hole
Chilled water inlet opening
Chilled water drain hole
Water inlet opening for humidifier
Cable inlet/outlet opening 4 bottom plate
fastening holes
Two-bay series
120
45
29
471 318 471 420
350
48
48.5105
65
90
70
88.5
45
471 56.8 119
45
72.5
45
130
4545
70
72.5
50
Air supply outlet
Condensed water drain hole
Chilled water inlet opening
Chilled water drain hole
Water inlet opening for humidifier
Cable inlet/outlet opening 6 bottom plate
fastening holes
Air supply outlet Air supply outlet
Three-bay series
Figure 2-14 Base cut-out locations of the forward fan downflow series (unit: mm)

Chapter 2 Mechanical Installation 13
Liebert.PEX Chilled Water Series Air Conditioner User Manual
850
686
89
429
798
651058172
58
45 43 79 583
601
130
60
306 73
157
4 bottom plate
fastening holes
Air supply outlet
Condensed water drain hole
Chilled water inlet opening
Chilled water drain hole
Water inlet opening
for humidifier
Cable inlet/
outlet opening
One-bay series
120 1460
157
623
6070
59
122583200
1700
583
78
4445
429
789
651058470
58
89
601
4 bottom plate
fastening holes
Air supply outlet
Air supply outlet
Condensed water drain hole
Chilled water inlet opening
Chilled water drain hole
Water inlet opening
for humidifier
Cable inlet/
outlet opening
Two-bay series
6 bottom plate
fastening holes
Condensed
water drain hole
Air supply outlet Air supply outlet
Chilled water inlet opening
Chilled water drain hole
Water inlet opening for
humidifier
Cable inlet/outlet opening
120
2550
2385
89
429
798
58
6510584
70
157
601
4544 1566 90
70 73
Air supply outlet
130
60
306 73
Three-bay series
Figure 2-15 Base cut-out locations of the backward fan downflow series (unit: mm)