Liebert Refrigerator XDP160RA User Manual

Precision Cooling  
For Business-Critical Continuity™  
Liebert® XDPwith Liebert® iCOM® Control  
User Manual–50-60 Hz; 160kW Nominal Capacity  
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TABLE OF CONTENTS  
4.2  
i
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ii  
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FIGURES  
Figure 1  
iii  
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TABLES  
iv  
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IMPORTANT SAFETY INSTRUCTIONS  
SAVE THESE INSTRUCTIONS  
This manual contains important safety instructions that should be followed during the installation  
and maintenance of the Liebert XDP. Read this manual thoroughly before attempting to install or  
operate this unit.  
Only qualified personnel should move, install or service this equipment.  
Adhere to all warnings, cautions, notices and installation, operating and safety instructions on the  
unit and in this manual. Follow all operating and user instructions.  
Follow all local codes.  
WARNING  
!
Risk of arc flash and electric shock. Can cause property damage, injury or death.  
Disconnect all local and remote electric power supplies and wear protective equipment per  
NFPA 70E before working within electric control enclosure. Failure to comply can cause  
serious injury or death.  
Customer must provide earth ground to unit, per NEC, CEC and local codes, as applicable.  
Before proceeding with installation, read all instructions, verify that all the parts are included  
and check the nameplate to be sure the voltage matches available utility power.  
The Liebert iCOM microprocessor does not isolate power from the unit, even in the Unit Off  
mode. Some internal components require and receive power even during the Unit Off mode of  
Liebert iCOM control.  
The line side of the disconnect switch on the front of the unit contains live high-voltage.  
The only way to ensure that there is NO voltage inside the unit is to install and open a remote  
disconnect switch. Refer to unit electrical schematic.  
Follow all local codes.  
WARNING  
!
Risk of unit falling over. Can cause property damage, injury or death.  
The XDP is top-heavy. Use extreme caution and care when moving and installing this unit.  
CAUTION  
!
Risk of piping and component rupture. Can cause injury or equipment damage.  
System is pressurized. Relieve pressure through access valve before working on unit.Closing  
service valves may isolate liquid refrigerant, causing high pressure and rupture of piping. Do  
not close valves without following recommended procedures for repair, maintenance and  
replacement of components. Install pressure relief valves in field piping that may become  
isolated by service valves. System is pressurized. Relieve pressure through access valve  
before working on unit  
NOTE  
This document is intended to be used together with site specific documentation and  
documentation for other parts of the system (heat rejection devices and cooling modules).  
NOTE  
Before any action that could cause a disturbance in the XD system’s cooling function is begun,  
the facility manager MUST be informed. In addition, after the action is taken and the work is  
finished, the facility manager MUST be informed.  
NOTICE  
Risk of leaking chilled water lines. Can cause equipment and building damage.  
Lines and joints must be inspected regularly. Improper installation, application and service  
practices can result in water leakage from the unit. Water leakage can result in severe  
property damage and loss of critical data center equipment. Do not locate unit directly above  
any equipment that could sustain water damage. Emerson Network Power recommends  
installing monitored leak detection equipment for the unit and supply and return lines.  
1
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Figure 1  
Model number nomenclature  
Example: XDP160RA– –4  
XD  
P
160  
R
A
*
Pumping  
unit  
Pump  
Redundancy  
Place holder  
Revision  
level  
Liebert  
X-treme heat  
Density system  
160kW  
nominal  
capacity  
A = 460V-3ph-60Hz  
(voltage-phase-frequency)  
C = 208V-3ph-60Hz  
Place holder  
M = 380/415-3ph-50Hz  
2
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Product Description  
1.0 PRODUCT DESCRIPTION  
1.1 General Product Information  
1.1.1 Product/System Description  
Liebert’s XDP refrigerant distribution unit is an interface between the building chilled water system  
and the cooling modules in the Liebert XD system. It is designed to circulate and control refrigerant  
to the cooling modules that are in the room with heat-producing equipment. The Liebert XDP is rated  
for 160kW (546,000BTU/H) of cooling.  
The Liebert XDP consists of a cabinet that includes a heat exchanger, circulating pump(s), control  
valve, receiver, controls, valves and piping.  
The Liebert XDP monitors room conditions and prevents coil condensation by maintaining the  
refrigerant being pumped to the cooling modules at a temperature above the room’s dew point.  
All functions, such as switching pumps (if applicable), controlling refrigerant temperature, etc., are  
automatic.  
Figure 2  
Liebert XDP components  
Liebert XDP Unit  
Liebert XD Cooling Modules  
Control Valve  
Chilled Water  
Heat Exchanger  
Pumps  
Receiver  
1.1.2 Minimum Load  
The Liebert XDP's minimum recommended operating load is 30% of system nominal capacity. The  
Liebert XDP160 is rated for 160kW (546,000BTU/H) of cooling, therefore the system's minimum  
recommended load is 48kW (163,800BTU/H). Loading below this value can unfavorably affect system  
operation. Consult the factory for any loading below this recommendation.  
To achieve the minimum recommended load, the capacity of all connected modules must total at least  
48kW (163,800BTU/H). See Table 1.  
Table 1  
Number of Liebert XD cooling modules required to achieve at least 48kW  
(163,800 BTU/H) load  
Liebert XD Module Type  
XDCF10 XDV8 XDV10 XDO16 XDO20 XDH20 XDH32 XDR20  
Number of Liebert XD  
cooling modules required  
to achieve at least 48kW  
(163,800BTU/H) load  
5
6
5
3
3
3
2
3
1.2  
Equipment Inspection  
When the unit is delivered, inspect all items for visible and concealed damage. Damage should be  
immediately reported to the carrier and a damage claim filed with a copy sent to Emerson and to your  
sales representative.  
3
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Product Description  
1.3  
Equipment Handling  
WARNING  
!
Risk of unit falling over. Can cause injury or death.  
The Liebert XDP is top-heavy. Use extreme caution and care when moving and installing this  
unit. Use lifting equipment that is rated for the weight of the unit by an OSHA-certified  
rating organization. See Table 15 for unit weights. Unit weights are specified in section 9.0  
Personnel should be properly trained and certified to move and rig equipment  
CAUTION  
!
Risk of sharp edges, splinters and exposed fasteners. Can cause injury.  
Only properly trained and qualified personnel wearing appropriate safety headgear, gloves,  
shoes and glasses should attempt to move, lift, remove packaging from or prepare the unit for  
installation.  
1.3.1 Handling the Liebert XDP While it is on Skid and Packaged  
• Always keep the unit upright, indoors and protected from damage.  
• If possible, transport the unit using a forklift truck. Otherwise use a crane with belts or cables. In  
either case, do NOT press on the top edges of the packaging.  
• If using a forklift, make sure the forks (if adjustable) are spread to the widest allowable distance  
to still fit under the skid.  
• When moving the skidded unit with a forklift truck, do not lift the unit any higher than  
6" (152mm). If circumstances require the unit to be lifted higher than 6" (152mm), great care  
must be exercised and all by-standing personnel are to be no closer than 20 feet (6m) from the lift  
point of the unit.  
NOTICE  
Risk of structural interference. Can cause equipment or building damage.  
While on the skid, the unit is too tall (83" [2108mm] overall height) to fit through a standard  
doorway. Any attempt to move the unit, while skidded, through a standard doorway will  
cause damage to the unit and to the building.  
NOTICE  
Risk of damage from forklift. Can cause unit damage.  
Keep tines of the forklift level and at a height suitable to fit below the skid and/or unit to  
prevent exterior and/or underside damage.  
NOTICE  
Risk of improper storage. Can cause unit damage.  
Keep the Liebert XDP upright, indoors and protected from dampness, freezing temperatures  
and contact damage.  
NOTICE  
Risk of overtightening securing straps. Can cause damage to panels.  
Place a protective material between the straps of the piano jacks and the unit. Ensure that  
the straps are not tightened to a point of damaging panels.  
4
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Product Description  
1.3.2 Unpacking the Liebert XDP  
1. Remove the exterior stretch wrap packaging from the unit, exposing the protective corner and  
side packaging planks.  
2. Remove and set aside filter dryer kit.  
3. Remove the corner and side packaging planks from the unit, exposing the bag over the unit. The  
bag may remain in place for dust and panel protection or removed for immediate unit installation.  
4. Remove the bag from the unit when ready to remove the skid for installation.  
Figure 3  
Unpacking the Liebert XDP  
Stretch  
Wrap  
Filter  
Dryer  
Kit  
Remove Stretch Wrap  
Remove Filter Dryer Kit  
Remove Packaging Planks  
1.3.3 Removing the Unit from the Skid Using a Forklift  
1. Align the forklift with either the front or rear side of the unit.  
Make sure the tines of the forklift are locked to the widest position.  
Use the center of gravity indicators to determine the entry points for the tines. The tines must be  
equally spaced on either side of the center of gravity indicator.  
2. Insert the tines of the forklift under the unit.  
Make sure the tines are level. The tines must be low enough to fit under the unit without  
damaging it.  
Make sure the tines extend beyond the opposite side of the unit.  
3. Remove the 12 lag bolts and two brackets that secure the unit to the skid.  
NOTE  
Each lag bolt is 1-1/2" (38mm) long. They can be removed with a 9/16" socket or wrench.  
4. Lift the unit to a height that it is not being support by the skid.  
5. Move the skid from under the unit.  
5
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Product Description  
Figure 4  
Use a forklift to remove the Liebert XDP from the skid  
The forklift tines  
must be equally  
spaced on either  
side of the center of  
gravity indicator.  
Move the forklift forward  
until the tines are fully  
under the unit.  
Fit the forklift tines under the Liebert XDP.  
1.3.4 Removing the Unit from the Skid using Rigging  
1. Use the center of gravity indicators on the unit to position the slings. The slings must be equally  
spaced on either side of the center of gravity indicator. Refer to Figure 5.  
2. Place slings under the unit using spaces provided between the skid deck boards.  
NOTE  
Unit is shown without outer packaging. These instructions may be applied with the outer  
packaging in place.  
3. Use spreader bars or an equivalent method to ensure proper protection of the unit.  
4. Ensure that the panels, if attached, are well protected from the slings.  
NOTE  
If rigging is to be used to move the unit closer to the site for installation, place one or two  
horizontal straps around the unit and vertical straps at mid height.  
5. Remove the 12 lag bolts and two brackets that secure the unit to the skid.  
NOTE  
Each lag bolt is 1-1/2" (38mm) long. They can be removed with a 9/16" socket or wrench.  
6. Lift the unit off of the skid to an elevation point where the skid is not supporting the weight of the  
unit.  
7. Remove the skid from under the unit.  
6
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Product Description  
Figure 5  
Removing the unit from the skid using rigging  
Cushioning material  
not shown for clarity.  
Spreader  
Bars  
Center of  
Gravity  
Symbols  
If rigging will be used  
to transport the  
Liebert XDP, place one  
or two horizontal  
straps around the unit  
and the vertical staps  
about this height.  
Bracket  
Lag  
Bolts  
Equally  
Spaced  
Equally  
Spaced  
1.3.5 Moving the Liebert XDP Using Piano Jacks  
1. Elevate the Liebert XDP with a lifting mechanism, such as a forklift or rigging.  
2. Position one piano jack at each end of the Liebert XDP.  
3. Lower the unit to a height suitable for placing it on the piano jacks.  
4. Put protective material between the Liebert XDP and the piano jacks and straps.  
5. Secure the Liebert XDP to the piano jacks.  
6. Release the the Liebert XDP from the straps securing it to the lifting mechanism and move the  
mechanism away from the unit.  
Using the piano jacks, at least two properly trained and qualified personnel can move the unit.  
7
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Product Description  
Figure 6  
Securing the Liebert XDP to piano jacks  
Using a forklift to put a  
Liebert XDP on piano jacks  
Using rigging to put a  
Liebert XDP on piano jacks  
Liebert XDP Secured  
to piano jacks  
1.3.6 Removing the Unit from the Piano Jacks  
1. Lower the Liebert XDP as far as the piano jacks will allow.  
2. Undo all strapping holding the piano jacks to the unit.  
3. Lift one end of the Liebert XDP off one piano jack with a pry bar or similar device, taking care not  
to damage the unit’s cabinet.  
4. Repeat Step 3 to remove the piano jack from under the opposite end of the Liebert XDP.  
5. Remove all material used to protect the unit from the piano jacks and strapping.  
8
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Installation  
2.0 INSTALLATION  
2.1  
Mechanical Considerations  
2.1.1 Positioning the Liebert XDP  
Install the Liebert XDP according to the site specific documentation and secure the unit to the floor.  
The Liebert XDP can be installed near a wall or another Liebert XDP. However, there must be at  
least 3 feet (92cm) clearance in front of the Liebert XDP as service access for components in the unit.  
For additional technical information, refer to the System Design and Configuration Document for the  
Liebert XD System, SL-16655. The document is available in electronic format at Liebert’s Web site,  
www.liebert.com, as well as from your local Emerson representative.  
Figure 7  
Dimensions  
B
A
Overall  
Overall  
C
Side Panel  
F
E
D
Height  
of Unit  
5"  
(127mm)  
1" (25mm)  
2-3/8"  
(60mm)  
11"  
(279mm)  
Floor Cutout Dimensions  
D
Unit Base  
The shaded area indicates  
a recommended clearance  
of 36" (914mm) for component  
access.  
E
Unit Base  
DPN001598  
Pg. 2, Rev. 7  
Unit Dimensional Data  
Table 2  
Liebert XDP dimensions  
Dimensional Data, inches (mm)  
Shipping Weight, lb. (kg)  
Model  
50/60Hz  
A
B*  
C
D
E
H
Domestic  
Export  
XDP160  
38 (965)  
34 (864) 33-1/8 (841) 33 (838) 36 (914) 78 (1981)  
1020(462)  
1083 (491)  
* The dimension does not include the bezel of the disconnect switch.  
9
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Installation  
Figure 8  
Piping access points  
To first cooling module  
or bypass flow controller **  
Close this  
valve during  
normal  
Install replaceable filter dryer assembly  
in liquid supply line B.  
operation  
* Orientation  
determined  
by installer.  
A - Return from Liebert XD  
Cooling Modules  
B - Supply to Liebert XD Cooling Modules  
17-1/4"  
(438mm)  
Emerson recommends field-installation  
of shutoff valves at these points to permit  
isolating the Liebert XDP for maintenance  
16-1/8"  
(409.6mm)  
10" (254mm)  
19"  
(483mm)  
Dimensions are  
approximate  
and subject to change  
without notice.  
* Allow 8" (204mm) clearance for filter replacement.  
** To ensure ensure all refrigerant flow is filtered,  
install the filter dryer assembly between the discharge  
line of the Liebert XDP and the first bypass flow controller  
or the first Liebert XD cooling module.  
DPN001598  
Pg. 3, Rev. 7  
C - Chilled Water Supply  
From Chilled Water Source  
D - Chilled Water Return  
To Chilled Water Source  
Table 3  
Model  
Unit piping outlet connection sizes, inches, OD Cu  
Pipe Connection Point  
50/60 Hz  
A
B
C
D
XDP160  
2-1/8  
1-1/8  
2-5/8  
2-5/8  
2.2  
Electrical Considerations  
Make sure the actual supply voltage and frequency correspond to the voltage and frequency indicated  
on the Liebert XDP’s rating plate. The unit must be installed in accordance with national wiring  
regulations.  
Connect cables for high voltage supply to the electrical box in the Liebert XDP according to Figure 11  
and make sure that the phases are correctly connected.  
WARNING  
!
Risk of electric shock. Can cause injury or death.  
Disconnect all local and remote electric power before working within the unit.  
10  
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Installation  
WARNING  
!
Risk of electrical shock, short circuit and/or control malfunction. Can cause equipment  
damage, injury or death.  
Damage to wiring or components can make unit unsafe to operate.  
Use caution when installing wiring to prevent damage to factory wiring.  
Install protective bushings in wiring knockouts as required to protect wiring from sharp  
edges.  
Do not disturb factory wiring or route field-installed wiring over electrical terminals.  
Use NEC Class 1 wiring for all hazardous voltage electrical power supplies.  
Check and retighten all wiring connections before starting the unit.  
2.2.1 Connecting High-Voltage Cables  
1. Turn the Liebert XDP’s disconnect switch to the Off position (see Figure 9). Open the front doors  
and push down on the enclosure cover latch to open the hazardous voltage enclosure cover.  
Figure 9  
Front view of Liebert XDP and electrical enclosure  
Enclosure Cover Latch  
Hazardous Volatge  
Enclosure Cover  
2. Determine which knockouts in the electrical enclosure will be used and remove them (see  
11  
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Installation  
Figure 10 Electrical enclosure knockout location for hazardous voltage wiring  
XDP Input Power  
Knockout  
Enclosure Cover  
Not Shown for Clarity  
3. Route the input hazardous voltage electrical power wiring through the top left knockout (see  
Figure 10) to the disconnect switch L1, L2 and L3 (see Figures 11 and 12). Observe proper  
phasing.  
4. Connect the ground wire to the ground lug (see Figures 11 and 12), which is in the middle left of  
the enclosure.  
Figure 11 High voltage connections—60Hz  
Power Block  
Customer  
Power  
Connection  
Ground  
Lug  
Transformer 2  
(Supplied on 460V  
Units Only)  
Fused  
Disconnect  
Transformer 6  
Fuse  
Blocks  
Transformer 1  
Fuse  
Block  
Pump  
Contactors  
12  
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Installation  
Figure 12 High voltage connections—50Hz  
Customer Power  
Connection  
Ground Lug  
Transformer 2  
Power Block  
Disconnect Switch  
Pump Circuit  
Breakers  
Transformer 6  
Busbar  
Fuse Blocks  
Transformer 1  
Pump Contactors  
2.2.2 Extra Low Voltage (ELV) Connections  
Extra Low Voltage power output is 30V and 100VA or less.  
1. Turn off all unit power before connecting cables or wires. Failure to do so may damage this  
equipment (refer to Figure 13).  
2. Route low voltage electrical connections through the appropriate knockouts as indicated below.  
Figure 13 Electrical enclosure knockout locations for Extra Low Voltage  
Liebert XD Module Condensate  
User Interface Wiring  
Connections (optional; depends  
Temperature/Humidity  
Sensor Wiring  
on features supplied with  
Liebert XD Module)  
Alternate Knockout  
for Temperature/Humidity  
Sensor Wiring  
Enclosure Cover Not Shown for Clarity  
13  
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Installation  
Figure 14 Connecting the remote temperature/humidity sensors  
P66  
P66  
Liebert XD  
Cooling Module  
P67  
P67  
See Note 8  
Liebert XD  
Cooling Module  
CAN Ground  
Coupler  
CAN Ground  
Coupler  
P2  
P1  
P4  
P3  
CAN  
Cable  
CAN Iso  
Adapter  
See  
Note 4  
See Note 8  
See Note 5  
See Note 5  
Termination  
Plug  
P66 P67  
P66 P67  
P64 P66 P67  
See Note 4  
Remote T/H Sensor A  
Remote T/H Sensor B  
See Note 7  
See  
Note 9  
Unit Display  
(Rear View)  
T6 Isolation  
Transformer  
Red Crossover  
Ethernet Cable  
T1 Unit Control  
Transformer  
24VAC Nominal  
Crossover Coupler  
See Note 6  
See Note 3  
P41  
P24  
P13  
P11  
P12  
1
2
3
P7  
P43  
OF  
F
ON  
P78  
P67  
P64  
SW2  
Control  
P66  
Fuse  
2
1
4
6
5
3
Not  
Used  
Board  
P68  
P45  
P4  
P61  
P65  
P4  
Ribbon  
Cables  
See  
Note 2  
Liebert iCOM Microprocessor  
and I/O Board  
P1  
P2  
P65  
P3  
See Table for  
Plug Assignments  
P40  
P8  
P32  
P34  
P33  
P35  
P36  
Liebert IntelliSlot  
Power Supply  
77 78  
1. See unit electrical schematic, installation and user manuals.  
2. Cables “A” and “B” provided with each unit. Only one is used as follows:  
Liebert IntelliSlot-based communications - Cable “A” is preconnected to P65  
on microprocessor and input/output board and P65 on Liebert IntelliSlot  
power supply non-Liebert IntelliSlot-based communications - Vable “B” is  
6. A crossover coupler is provided for unit-to-unit (U2U) networking. Unplug  
the red cable from P64 on the microprocessor and input/output board  
and connect to one side of the crossover coupler. The first customer  
connection point is to P64 on the microprocessor and input/output board.  
The second customer connection point is to the other side of the crossover  
pre-connected to Terminals 77 and 78 but must be exchanged with Cable “A” coupler. This connects the microprocessor and input/output board and  
at P65 on the microprocessor and input/output board.  
3. Install applicable Liebert IntelliSlot cards.  
4. Both cables (P64 and P66) are required.  
5. It is not necessary to connect ground coupling on end of cable connected  
to Sensor “A” or Sensor “B.”  
display to the private U2U network.  
7. The remote sensors are interchangeable as to which connects to the  
Liebert XD cooling module and which connects to P2 on CAN Iso.  
8. Field-install cables with factory-installed ferrite beads (when provided,  
typical two places). Each cable must make three passes through the ferrite  
bead. Locate the ferrite bead on top of the electric box. See instruction  
sheet provided with the cable assembly.  
302211  
Rev. 2  
9. Factory-installed ferrite bead (when provided). Cable passes through  
ferrite bead three times  
14  
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Installation  
2.2.3 DIP Switch and Jumper Settings for Remote Sensors  
The Liebert XDP is shipped with jumpers and DIP switch settings for normal operation. See  
Figure 15 DIP switch and jumper settings  
MICROPROCESSOR AND I/O BOARD  
UNIT DISPLAY  
OFF ON  
DIP  
1
Jumper on 1-2  
Switches  
OFF ON  
1
2
3
2
3
4
5
6
7
8
9
DIP  
Switches  
OFF ON  
P78  
2
5
6
7
8
1
3
4
9
1 None  
OFF ON  
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
SW2 10  
SW3  
Jumpers  
on 1-2, 5-6  
10  
Jumper  
on 1-2  
P78  
1
P68  
2
3
2
1
4
3
6
5
REMOTE T/HSENSOR “A”  
ON  
REMOTE T/H SENSOR “B”  
DIP  
DIP  
ON  
Switches  
Switches  
OFF  
1
OFF  
2
ON  
1
ON  
2
5
OFF  
OFF  
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
SW1  
P3  
SW1  
3
4
6
7
5
3
4
6
7
Jumper  
on 2-3  
Jumper  
on 2-3  
P3  
3
2
1
3
2
1
302211  
Rev. 2  
8
8
Figure 16 Unit-to-unit networking connections  
CAN Cable  
Red Crossover  
Ethernet Cable  
Termination  
Plug  
Crossover  
Coupler  
P64  
See Note 1  
P66P67  
Customer  
Connection  
Points  
1. Both cables (P64 and P66) are required.  
Unit Display (Rear View)  
2. A crossover coupler is provided for unit-to-unit (U2U)  
networking. Unplug the red cable from P64 on the  
microprocessor and I/O board and connect to one side  
of the crossover coupler. The first customer connection  
point is to P64 on the microprocessor and I/O board.  
The second customer connection point is to the other  
side of the crossover coupler. This connects the  
microprocessor and I/O board and display to the  
private U2U network.  
P11  
P12  
P13 P7  
P67  
P66  
P64  
U2U Networking Switch  
(Field Supplied)  
Not  
Used  
Liebert iCOM  
Microprocessor  
& I/O Board  
To / From Other  
Networked Units  
Straight Through  
Ethernet Cables  
302211  
Rev. 2  
15  
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Installation  
2.3  
Field Connections—Optional for All Units  
• Connect field wiring from the optional Liebert XD cooling module condensation detection circuit  
to terminal strip locations COMM. (24) and H2O (51).  
• Connect optional field wiring from remote devices to remote alarm device, common alarm outputs,  
site monitor and remote shutdown, if applicable. See terminal strip descriptions in Figure 17.  
Figure 17 Liebert XDP extra low voltage field connections points  
To P66 on Liebert iCOM  
Control Board  
To P64 on Liebert iCOM  
Control Board  
Red Ethernet Cable  
Termination Plug  
To Liebert XD Cooling  
Module(s) and Remote  
T/H Sensor B  
To Remote T/H Sensor A  
To Optional  
External  
Connections  
P64 P66 P67  
UNIT DISPLAY (Rear View)  
Factory-Wired  
Temperature Sensor  
P67  
Do Not  
Use  
1
NOTES:  
Control wiring must be Class 2 and installed in  
accordance with the National Electrical Code (NEC).  
1
Requires shielded cable.  
2
DPN001598  
Pg. 6, Rev. 7  
16  
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Installation  
2.4  
Remote Sensor Installation—Proper Placement  
Placement of the two remote temperature/humidity sensors is critical to effective cooling of the  
conditioned space.  
The remote sensors must be installed in areas where conditions are representative of the space  
conditioned by the Liebert XDP. Emerson recommends installing the sensors in different areas near  
the cooling modules served by the Liebert XDP. If the return air side of the primary air mover, such  
as a Liebert DS, represents the conditions where the Liebert XD cooling modules are located, one  
sensor could be placed there. Emerson suggests placing the other sensor on the wall opposite the heat  
load area (see Figure 18 for guidance).  
Do not install the sensors where ambient air might cause false readings, for example, near unsealed  
doors or windows, or areas with stagnant air.  
1. Unpack the two remote temperature/humidity sensors and cables.  
One sensor is labeled Sensor A and the other Sensor B. The sensor cables are interchangeable;  
each bears labels indicating Sensor End and Unit End.  
2. Connect the Sensor End of one of the supplied sensor cables to P66 on Sensor A (see Figure 14).  
3. Connect the Unit End of the sensor cable to P67 on the Liebert iCOM input/output board inside  
the Liebert XDP. Secure the ring terminal on the cable shield to the electric box adjacent to P67  
(see Figure 14).  
4. Connect the Sensor End of the second sensor cable to P66 on Sensor B (see Figure 14).  
5. Connect the Unit End of the cable to P67 on the Liebert iCOM display (see Figure 14). Secure the  
ring terminal on the cable shield to the grounding screw adjacent to P67.  
Figure 18 Suggested remote sensor placement  
17  
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Piping  
3.0 PIPING  
3.1 European Union Fluorinated Greenhouse Gas Requirements  
Stationary air conditioning, refrigeration, heat pump equipment and stationary fire protection  
systems in the European Community market and operating with fluorinated greenhouse gases (f-  
gas), such as R407C, R134a, R410A, must comply with the F-Gas Regulation: (EC) No. 842/2006 (F-  
gas). The regulation prohibits, among other actions, venting fluorinated greenhouse gases to the  
atmosphere.  
The F-Gas Regulation requires operators to use all measures that are technically feasible and do not  
entail disproportionate cost to prevent leakage of these gases, to test for leakage regularly and to  
recover f-gas before disposing of equipment, as well as during service and maintenance.  
Refer to the full regulation for additional details.  
3.2  
Connection Sizes  
The copper pipe connections on the Liebert XDP are:  
Building Chilled Water Supply 2-5/8" OD  
Building Chilled Water Return 2-5/8" OD  
Refrigerant Supply  
Refrigerant Return  
1-1/8" OD  
2-1/8" OD  
3.2.1 Recommended Pipe Size  
Connect the main pipes between the Liebert XDP and the Liebert XD cooling modules according to  
site specific documentation and the configuration guide for the Liebert XD system.  
Elbows and restrictions must be minimized to get good fluid flow.  
Table 4  
Supply, return pipe sizes for refrigerant loop  
Pipe Function  
Size / Equivalent Pipe Length  
1-1/8" OD for lengths up to 60 feet  
Liebert XDP supply line, from Liebert XDP supply  
to farthest Liebert XD cooling module  
1-3/8" OD for lengths over 60 but less than 175 feet  
2-1/8" OD for lengths up to 60 feet  
Liebert XDP return line, from farthest Liebert XD cooling  
module to Liebert XDP return  
2-5/8" OD for lengths over 60 but less than 175 feet  
1/2" OD for lengths up to 10 feet  
From any model Liebert XDO/Liebert XDH supply  
to supply line of Liebert XDP  
7/8" OD for lengths over 10 but less than 25 feet  
7/8" OD for lengths up to 10 feet  
From any model Liebert XDO/Liebert XDH return  
to return line of Liebert XDP  
1-1/8" OD for lengths over 10 but less than 25 feet  
1/2" OD for lengths up to 10 feet  
From any model Liebert XDV/Liebert XDCF supply  
to supply line of Liebert XDP  
5/8" OD for lengths over 10 but less than 35 feet  
5/8" OD for lengths up to 10 feet  
From any model Liebert XDV/Liebert XDCF return  
to return line of Liebert XDP  
7/8" OD for lengths over 10 but less than 35 feet  
18  
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Piping  
3.3  
Liebert XDP Interconnection with Liebert XD Cooling Modules  
All piping must be ASTM (American Society for Testing and Materials) Type ACR copper pipe.  
The Liebert XDP may be connected to Liebert XD cooling modules with either Liebert’s XD  
prefabricated piping assembly or with rigid, off-the-shelf piping. In either setup, piping for the Liebert  
XD system is arranged in a manner similar to piping for a chilled water system. Liebert XD cooling  
modules are connected in parallel between main return and supply pipes going to and from the  
Liebert XDP/Liebert XDC. Figure 19 represents a typical configuration. For piping details, refer to  
Liebert’s XD System Design Manual, SL-16655, available at Liebert’s Web site: www.liebert.com. The  
guidelines provided for pipe size must be strictly followed. Failure to size the main lines  
and connection lines adequately may result in reduced cooling capacity. The critical aspects  
of pipe sizing are related to refrigerant volume and pressure drop. Each must be minimized.  
Figure 19 Liebert XD system diagram  
Liebert XD  
Cooling  
Liebert XD  
Cooling  
Liebert XD  
Cooling  
Liebert XD  
Cooling  
Liebert XD  
Cooling  
Module  
Module  
Module  
Module  
Module  
All supply and return  
mains must be level  
with or above the  
top of all Liebert XD  
modules  
SLOPE—The main supply and return lines to and  
from the Liebert XDP must be sloped downward  
toward the Liebert XDP at a rate of 1-2" per 20 feet  
(25.4-51mm per 6m) of pipe run.  
Liebert XDP  
3.4  
Piping Installation Methods  
The assembly and connection means used for piping in the Liebert XD system are similar to those  
used for conventional refrigeration systems. All piping should be installed with high-temperature  
brazed joints. Soft soldering is not recommended.  
During brazing, the lines must be filled with flowing dry nitrogen to prevent excessive oxidation and  
scale formation inside the piping. Prevailing good refrigeration practices must be employed for piping  
supports, leak testing, dehydration and charging. Failure to use good system practices may result in  
damage to the system. Refer to the ASHRAE refrigeration handbook for general good-practice  
refrigeration piping.  
Insulate all piping lines to prevent condensation in applications where the dew point approaches the  
R-134a refrigerant temperature.  
Emerson recommends venting the pressure relief valve for the R-134a outside the conditioned space  
where it is open to the atmosphere. The R-134a side relief valve is inside the Liebert XDP unit at the  
top of the receiver.  
3.4.1 Piping Installation—R-134a Pumped Circuit  
Emerson recommends venting the relief pressure valve of the Liebert XDP (located at the top of the  
receiver) outside of the conditioned space where it is open to the atmosphere.  
19  
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Piping  
3.4.2 Piping Mains  
All refrigeration piping mains connected to the Liebert XD cooling module, both supply and return,  
should be installed with a downward pitch toward the Liebert XDP of 1-2" for every 20 feet  
(25.4-51mm per 6m) of pipe run.  
Install a 20-40 mesh strainer on the chilled water supply to the Liebert XDP. The strainer is required  
to prevent particles in the chilled water from entering the Liebert XDP’s heat exchanger. The  
maximum distance from the strainer to the Liebert XDP is 10 feet (3m).  
NOTICE  
Risk of particles in chilled water. Can cause equipment damage and reduced cooling.  
Failure to install a strainer in the supply line to the Liebert XDP can result in damage to the  
unit’s heat exchanger.  
3.4.3 Bypass Flow Controller  
Three bypass flow controllers are required to ensure that the Liebert XDP pumps operate within the  
optimum range. These devices are added to the field piping and simulate the flow of additional cooling  
modules.  
Each bypass flow controller must be installed with one shutoff valve to allow the controller to be  
disabled when cooling modules are added to a Liebert XD system.  
Bypass flow controllers should be connected between the main supply and the main return lines of the  
field piping. The connection points to the main supply and return lines should be in a convenient and  
accessible location between the Liebert XDP/Liebert XDC and the first Liebert XD module in the  
circuit. See Figures 20 and 21 for piping details of the bypass flow controller.  
Refer to Table 5 to determine the number of bypass flow controllers that must be open to provide  
proper refrigerant flow based on the total nominal cooling capacity of the cooling modules in each  
Liebert XD system.  
Table 5  
Bypass flow controllers for a Liebert XDP-based system  
Required Number of Open  
Bypass Flow Controllers  
System Load kW Cumulative  
Module Model Size  
Liebert XDP  
48 to 63  
64 to 95  
3
2
1
0
96 to 127  
128 to 160  
Figure 20 Bypass flow controller details, dimensions  
"
4 (102mm)  
"
7/8  
(22mm) ID  
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Piping  
Figure 21 Bypass flow controller arrangement  
Return  
Main  
7/8" Refrigerant Grade  
Full Port Ball Valve  
Field-Supplied and Field-Installed  
Flow Direction  
Bypass Flow Controller  
(Field-Installed)  
Supply  
Main  
Figure 22 Bypass flow controller piping  
Liebert XD  
Cooling  
Liebert XD  
Cooling  
Module #1  
Module #2  
Bypass Flow  
Controllers  
Coolant  
Supply  
Filter Dryer  
Assembly  
Coolant  
Return  
Liebert  
XDP  
3.5  
Piping Details—Shutoff/Isolation Valves  
Isolation valves must be installed on the Liebert XDP’s refrigerant circuit to permit maintenance on  
the unit (see Figure 23).  
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Piping  
Figure 23 General piping details  
Return  
Return  
Supply  
Emerson recommends  
field-installation of shutoff  
valves at these points to  
permit isolating the  
Liebert XDP for  
Supply  
maintenance.  
Liebert  
XDP A  
Liebert  
XDP B  
Floor  
Isolation  
valves  
Isolation  
valves  
Building Chilled Water Supply  
Building Chilled Water Return  
3.5.1 Evacuation and Leak Check—R-134a Pumped Circuit  
1. Open all service valves, including those outside the Liebert XDP.  
2. Attach a jumper hose from one of the Schrader valve fittings on a pump outlet before the check  
valve to a Schrader valve fittings after the check valve.  
3. Place 150psig (1034kPa; 10.34 bars) of dry nitrogen with a tracer of R-134a in the system.  
NOTICE  
Risk of overpressurization. Can cause equipment damage.  
Do not exceed 150 psig (1034 kPa; 10.34 bars) in the R-134a circuit.  
4. Check the system for leaks with a suitable leak finder on the pumps’ suctions lines.  
5. After completion of the leak testing, release the test pressure (per local code) and connect to  
vacuum pump(s) at the Schrader valves.  
6. After pulling a deep vacuum for four hours, check the vacuum level and, if it has not changed,  
break the vacuum with dry nitrogen.  
7. Pull a second vacuum to 250 microns or less. Recheck the vacuum level after 2 hours.  
3.5.2 Insulation  
NOTE  
Do not insulate piping before checking it for leaks. Insulating pipes before checking them for  
leaks would prevent easy detection of leaks.  
Insulate all piping between the Liebert XDP and its connected cooling modules to prevent  
condensation where the piping passes through non-conditioned areas.  
22  
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Piping  
3.6  
Filling the Pumped Circuit—R-134a  
Using a refrigerant pump or cylinder heater pads will speed the charging process.  
1. Connect a charging manifold to the service port of the receiver outlet valve or to the suction and  
discharge side of the pump.  
2. Purge the hoses.  
3. Calculate the amount of R-134a refrigerant needed to charge the system, using the values in  
Example. The section includes a worksheet to calculate system refrigerant charge requirements.  
4. Weigh in the calculated charge.  
5. After adding the calculated charge, allow the system to sit 15 to 30 minutes to reach equilibrium.  
Observe the refrigerant level through the sight glasses of the receiver. The level should be above  
the second sight glass at a minimum when the Liebert XDP is off.  
6. If the refrigerant level is improper, the charge must be adjusted.  
If the level is too high or too low, recalculate the required charge and reduce or increase the  
amount as needed to reach the proper level.  
NOTE  
All lengths in Tables 6, 7 and 8 are actual pipe lengths, not equivalent pipe lengths.  
NOTE  
System refrigerant volume calculations derived from Tables 6, 7, 8 and 9 are based on a fully  
loaded system. Additional charge may be required for lightly loaded systems.  
Table 6  
System R-134a charge for a Liebert XDP with any model Liebert XDH/Liebert  
XDO/Liebert XDV/Liebert XDCF/Liebert XDR  
Per Liebert XD Unit  
(Excludes Connector Lines to and from Liebert XD Cooling Module)  
Refrigerant Charge, lb. (kg)  
1.41 lb. (0.64kg)  
5.32 lb. (2.41kg)  
3.55 lb. (1.61kg)  
157 lb. (71.2kg)  
Liebert XDCF  
Liebert XDH  
Liebert XDO  
Liebert XDP  
Liebert XDR  
Liebert XDV  
4 lb. (1.8kg)  
2.32 lb. (1.05kg)  
Table 7  
System refrigerant charge for the supply and return mains  
Refrigerant Charge,  
lb/foot (kg/m)  
Supply/Return Main Length and Diameter  
0.45 (0.67)  
0.68 (1.01)  
0.28 (0.42)  
0.43 (0.64)  
Main supply actual length per 1-1/8" OD copper tubing  
Main supply actual length per 1-3/8" OD copper tubing  
Main return actual length per 2-1/8" OD copper tubing  
Main return actual length per 2-5/8" OD copper tubing  
Before beginning, verify that the system is not equipped with pre-charged Liebert XD Flex Pipe.  
Table 8  
R-134a refrigerant charge for hard-piped connector lines to and from any model  
Liebert XDH/Liebert XDO/Liebert XDV/Liebert XDCF/Liebert XDR  
Refrigerant  
Charge, lb/foot (kg/m)  
Hard-Piped Connector Length and Diameter  
1/2" OD Liebert XDO/Liebert XDH/Liebert XDV/Liebert XDCF/Liebert XDR supply connector  
actual length  
0.08 (0.12)  
0.13 (0.19)  
0.26 (0.39)  
0.02 (0.03)  
0.04 (0.06)  
0.04 (0.06)  
0.07 (0.1)  
5/8" OD copper tubing Liebert XDV/Liebert XDCF supply connector actual length  
7/8" OD Liebert XDO/Liebert XDH/Liebert XDR supply connector actual length  
5/8" OD copper tubing Liebert XDV/Liebert XDCF return connector actual length  
7/8" OD copper tubing Liebert XDV/Liebert XDCF return connector actual length  
7/8" OD copper tubing Liebert XDH/Liebert XDO/Liebert XDR return connector actual length  
1-1/8" OD copper tubing Liebert XDH/Liebert XDO/Liebert XDR return connector actual length  
23  
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Piping  
Table 9  
R-134a refrigerant charge for Flex Pipe connector lines to and from any model  
Liebert XDO/Liebert XDH/Liebert XDV/Liebert XDCF/Liebert XDR  
Refrigerant Charge  
lb. (kg)  
Metal Flex Pipe Connector Length  
Supply Line Diameter 1/2"  
0.3 lb. (0.14) 4 ft. Flex Pipe Liebert XDH/Liebert XDO/Liebert XDV/Liebert XDCF/Liebert XDR supply  
0.5 lb. (0.23) 6 ft. Flex Pipe Liebert XDH/Liebert XDO/Liebert XDV/Liebert XDCF/Liebert XDR supply  
0.7 lb. (0.32) 8 ft. Flex Pipe Liebert XDH/Liebert XDO/Liebert XDV/Liebert XDCF/Liebert XDR supply  
0.8 lb. (0.36) 10 ft. Flex Pipe Liebert XDH/Liebert XDO/Liebert XDV/Liebert XDCF supply/Liebert XDR  
Return Line Diameter 5/8"  
0.01 lb. (0.01) 4 ft. Flex Pipe existing Liebert XDV systems  
0.02 lb. (0.01) 6 ft. Flex Pipe existing Liebert XDV systems  
0.03 lb. (0.01) 8 ft. Flex Pipe existing Liebert XDV systems  
0.03 lb. (0.01) 10 ft. Flex Pipe existing Liebert XDV systems  
Return Line Diameter 1"  
0.13 lb. (0.06) 4 ft. Flex Pipe Liebert XDH/Liebert XDO/Liebert XDV/Liebert XDCF/Liebert XDR supply  
0.2 lb. (0.09) 6 ft. Flex Pipe Liebert XDH/Liebert XDO/Liebert XDV/Liebert XDCF/Liebert XDR supply  
0.27 lb. (0.12) 8 ft. Flex Pipe Liebert XDH/Liebert XDO/Liebert XDV/Liebert XDCF/Liebert XDR supply  
0.33 lb. (0.15) 10 ft. Flex Pipe Liebert XDH/Liebert XDO/Liebert XDV/Liebert XDCF/Liebert XDR supply  
3.6.1 Calculating Refrigerant Charge—Example  
Using Tables 6, 7, 8 and 9, calculate the refrigerant charge of the individual sections of your Liebert  
XD system. Add the calculated charge amounts to determine the amount of R-134a refrigerant  
required for one system combining a Liebert XDP with Liebert XD cooling modules (Liebert XDCF,  
Liebert XDH, Liebert XDO and Liebert XDV). The example below combines one Liebert XDP with 20  
Liebert XDV8 cooling modules.  
Table 10 Calculating refrigerant charge—example  
Number of Units  
or Piping Length, feet  
Pounds Per  
Component  
Components  
Total, lb.  
157  
46.4  
45  
Liebert XDP  
1
157  
2.32  
0.45  
0.28  
0.8  
Liebert XDV8 Cooling Modules  
Supply Main, 1-1/8"  
20  
100  
100  
20  
Return Main, 2-1/8"  
28  
Liebert XDV 1/2" supply Liebert XD Flex Pipes  
Liebert XDV 5/8" return Liebert XD Flex Pipes  
16  
20  
0.03  
0.6  
Total  
293  
Table 11  
Worksheet to calculate refrigerant charge  
Number of Units  
or Piping Length  
Pounds Per  
Component  
Components  
Total  
Total  
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Piping  
3.7  
Checklist for Proper Installation  
___ 1. Unpack and check received material.  
___ 2. Position the Liebert XDP and secure it to the floor.  
___ 3. Wire high voltage connections.  
___ 4. Wire low voltage connections.  
___ 5. Connect the building chilled water piping to the Liebert XDP.44Connect the Liebert XD  
cooling module piping to the Liebert XDP with slope.  
___ 6. Check the system for leaks.  
___ 7. Hold a vacuum on the system.  
___ 8. Charge the system with refrigerant.  
___ 9. Make sure that all piping has proper insulation.  
25  
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Liebert iCOM Control—Firmware Version XP1.00.010.STD  
4.0 LIEBERT ICOM CONTROL—FIRMWARE VERSION XP1.00.010.STD  
4.1 Liebert iCOM Components and Functions  
The Liebert iCOM controller layout is shown in Figure 24; the keyboard functions are defined in  
Figure 24 Liebert iCOM display components  
Liquid Crystal  
Display screen  
LED Status Indicators  
(top LED is red or flashing  
red; bottom LED is green  
or amber)  
Keypad  
LEDs  
(see Table 12 for  
meanings)  
Alarm Key  
Up Arrow Key  
?
On/Off Key  
Help Key  
Left Arrow Key  
Enter Key  
Right Arrow Key  
ESC  
Escape Key  
Down Arrow Key  
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Liebert iCOM Control—Firmware Version XP1.00.010.STD  
Table 12 Keyboard icons and functions  
Icon  
Key Name  
Function  
On/Off Key  
Controls the operational state of the cooling unit.  
Silences an alarm.  
Alarm Key  
Help Key  
Accesses integrated Help menus.  
?
ESCape Key  
Enter Key  
Returns to the previous display view.  
ESC  
Confirms all selections and selects icons or text.  
Moves upward in a menu or increases the value of a selected parameter.  
Moves downward in a menu or reduces the value of a selected parameter.  
Increase Key  
(Up Arrow)  
Decrease Key  
(Down Arrow)  
Left and Right  
Arrow Keys  
Navigates through text and sections of the display.  
Blinking Red—Active, unacknowledged alarm exists  
Upper LED  
Lower LED  
Solid Red—Active, acknowledged alarm exists  
Amber—Power is available to the unit; unit is NOT operating  
Green—Unit is operating with no alarms  
4.2  
Display Lamp Indicators  
• The Green lamp will be On only when the Liebert XDP is On and running with no alarms.  
• The Red lamp will be On if the unit is On and running with an active alarm, or if the unit is shut  
down because of an alarm.  
• The Red lamp will flash while an alarm is being annunciated. The Red lamp will stop flashing and  
the beeper in the display will stop beeping when the ALARM SILENCE / ? key is pressed.  
• The Amber lamp will be On if the Liebert XDP has been shut down at the I/O switch or if the unit  
has been shut down by an alarm condition.  
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Liebert iCOM Control—Firmware Version XP1.00.010.STD  
4.3  
Navigating Through the Liebert iCOM Display  
Liebert iCOM displays icons and text for monitoring and controlling your Liebert cooling unit. The  
Liebert iCOM’s home screen is shown in Figure 25.  
Figure 25 Liebert iCOM default home screen  
Pump Operation  
represented by animated  
refrigerant lines  
Sensor B  
Room Data  
Sensor A  
Unit  
Room Data  
Name  
Refrigerant  
Temperature  
Available only  
with Liebert XD  
Smart Modules  
Next Scheduled  
Maintenance  
Date and  
Time  
Unit Status  
Alarm/Event  
History  
Navigation  
Prompts  
4.3.1 Accessing Menus and Settings  
Viewing Data  
No password is required to view data or settings.  
To view data:  
1. From the home screen, press the Enter key to view the User Menu (see Figure 29).  
2. Press Enter again to highlight the first icon.  
3. Use the keyboard’s arrow keys to move to the icon for the data you wish to view.  
4. Once that icon is highlighted, press Enter again to open that menu.  
• If a password is required, see 4.3.3 - Entering the Password.  
• If a menu has more than one screen, the Liebert iCOM display will have text at the top simi-  
lar to this: (page 1 of 2).  
5. Press Enter to select the first line of data.  
6. Use the Up and Down arrow keys to scroll to the desired data point.  
7. Press ESC to move back to higher level menus.  
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Liebert iCOM Control—Firmware Version XP1.00.010.STD  
4.3.2 Cooling Module Overview  
The Liebert iCOM will display an overview of all connected cooling modules. It does not display a  
system view, which would include units other than the cooling modules.  
NOTE  
The Liebert iCOM control screens display a setting to select a system view, but the Liebert XDP  
does not support a system view.  
To display an overview of all connected cooling modules:  
1. At the default home screen on the Liebert iCOM, press the down arrow. This will display the first  
10 modules’ outlet temperature and capacity levels. Press ESC to return to the unit view.  
Figure 26 Cooling module overview, first 10 modules  
Max XD Supply  
Air Temp  
212°F100% OFF  
Liebert XDP  
9/2013  
°F 70  
72  
74  
76  
75  
73  
74  
71  
77  
72  
AA01 AA01 AA01 AA01 AA01 AA01 AA01 AA01 AA01AA01  
8/4/2012 14:13:54  
ALARM OFF  
(01) 8/2/2012 08:33 RST General Alarm  
(01) 8/2/2012 08:20 ACK HIGH CHILLED WATER TEMP  
for system view  
for next/previous unit  
ESC for previous screen  
? for help  
for menu  
2. Press the down arrow button again to display the next 10 modules’ outlet temperature and  
capacity levels.  
3. Press ESC to return to the default home screen.  
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Liebert iCOM Control—Firmware Version XP1.00.010.STD  
4.3.3 Entering the Password  
Most settings in the Liebert iCOM are protected by a factory-set password, 1490. To enter the  
password:  
1. From the home screen, press the Enter key to view the User Menu (see Figure 29).  
2. Press Enter again to highlight the first icon.  
3. Use the keyboard’s arrow keys to move to the icon for the data you wish to change.  
4. Once that icon is highlighted, press Enter again to open that menu.  
5. Press Enter to highlight the Password line.  
6. With the Password line highlighted, press Enter to highlight the first digit in the password  
7. Enter the password, 1490.  
Use the Up and Down arrow keys to select a numeral for the first digit of the password.  
Move to the next digit of the password with the Right arrow key.  
Select the numerals for all four digits with the same process.  
8. After all four digits of the password have been entered, press the Enter key.  
NOTE  
Do not press the ESC key or the Liebert iCOM will move to the previous screen and the  
password must be re-entered before changes may be made.  
Figure 27 Entering the password  
After highlighting the Password command line, press  
Enter again to highlight the first digit. Use the Up and  
Down arrow keys to change the first digit. Move to the  
next digit in the Password with the right arrow.  
Password command line—highlight  
by pressing Enter  
UNIT 01  
SETPOINTS  
U101 PASSWORD (Actual Level 0)  
U102 Min Room Temperature Setpoint  
????  
68.0°F  
U103  
U104  
U105  
U106  
U107  
U108  
U109  
U110  
U111  
to select parameter  
to confirm  
for next/previous unit  
then to change parameter  
30  
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Liebert iCOM Control—Firmware Version XP1.00.010.STD  
4.4  
Changing Liebert iCOM’s Display Settings  
No password is required to change the way Liebert iCOM displays data. The Display Setup controls  
how the unit shows data, such as temperature, date and time.  
To change the display settings:  
1. From the home screen, press the Enter key to view the User Menu (see Figure 29).  
2. Press Enter again to highlight the first icon.  
3. Use the keyboard’s arrow keys to move to the Display Setup icon.  
4. Once that icon is highlighted, press Enter again to open that menu.  
5. Press the Enter key to select the first setting.  
Either change that setting or navigate to another setting with the Up and Down arrow keys.  
6. Once the desired setting is highlighted, press the Enter key to access that parameter’s display  
setting options.  
7. Use the Up and Down arrow keys to make changes.  
8. Press the Enter key to accept the changes.  
9. Press the ESC key twice to return to Liebert iCOM’s user menu.  
Figure 28 Display setup screen  
DISPLAY SETUP  
SYSTEM  
U401 Language  
U402 Date  
U403 Time  
U404 Temperature Indication  
U405 Display Contrast  
U406 Buzzer Frequency  
U407 Backlite Off after  
U408 Screen  
ENGLISH (US)  
8/27/2012  
15:03:17  
°C  
50  
Off/ 50  
5 min  
Highlight the  
setting to be  
changed by  
XDP  
pressing Enter.  
U409  
U410 Display Colors  
U411 Date Format  
Normal  
mm/dd/yyyy  
to select parameter  
to confirm  
for next/previous unit  
then  
to change parameter  
4.5  
Changing Operational Settings  
Changes to the Liebert XDP’s operation settings in the Set Alarms and Setpoints menus require a  
password.  
1. From the home screen, press the Enter key to view the User Menu (see Figure 29).  
2. Press Enter again to highlight the first icon.  
3. Use the keyboard’s arrow keys to move to the icon for the data you wish to change.  
4. Once that icon is highlighted, press Enter again to open that menu.  
If a password is required, see 4.3.3 - Entering the Password.  
5. After entering the password, use the Up and Down arrow keys to scroll to and highlight the  
operational setting to be changed.  
6. Press Enter to highlight the values for that setting.  
7. Use the Up and Down arrow keys to change the value.  
8. Press Enter to accept the change. (The value will no longer be highlighted.)  
9. Press ESC to deselect the operational setting. (The setting will no longer be highlighted.)  
10. Press ESC again to move to previous screens.  
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Liebert iCOM Control—Firmware Version XP1.00.010.STD  
4.6  
Graphical Data Record  
The Graphical Data Record charts the average temperature from Sensors A and B and the supply  
refrigerant temperature.  
The temperature scales can be changed to expand or compress the data.  
The time scale also can be altered to any of several selectable values.  
NOTE  
Changing the time scale eliminates all previous graphical data and the unit will begin  
recording new data.  
4.7  
Liebert iCOM User Menu Icons and Legend  
Figure 29 Liebert iCOM User Menu icons  
°C / °F  
% RH  
SET  
EVENT  
LOG  
SET  
ALARMS  
Setpoints  
View and change  
operational  
Spare Parts List  
Contains spare  
parts available on  
site  
Event Log  
Lists last 400  
events and  
alarms  
Graphic Data Record  
Displays average  
View Network  
Shows status of  
all connected  
Set Alarms  
Allows user to  
change settings for  
alarms  
temperature from  
setpoints  
Sensors A and B, the  
average dew point from  
Sensors A and B, the  
supply refrigerant  
units; View Only  
View Only  
temperature and the  
supplyrefrigerantcontrol  
point graphs; Data is  
View Only; Display scale  
is adjustable  
1 2  
!
9
3
1234h  
XDIO  
ACTIVE  
ALARMS  
6
SET  
Sensor Data  
Shows readings  
of sensors; View alarms; View Only  
Only  
Active Alarms  
Display Setup  
Total Run Hours  
Change settings Records the run time of  
Smart Modules Service Contacts  
Displays Contains key  
readings for the contact information  
allows setting of limits on individual smart for service  
Lists all current  
for display:  
language and  
time  
all components and  
run time; View Only  
modules; View  
Only  
NOTE  
Menu shows icons only; text is explanatory and does not appear on the Liebert iCOM display.  
32  
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Liebert iCOM Control—Firmware Version XP1.00.010.STD  
Figure 30 Liebert XDP User Menu screen  
USER MENUS  
XDIO  
to navigate  
ESC to unselect  
to change level  
to open requested menu  
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Liebert iCOM Control—Firmware Version XP1.00.010.STD  
4.8  
Liebert iCOM User Menu Screens  
User menus report general cooling unit operations and status. User menu screens employ a coding  
that begins with “U” and is followed by parameters and information, such as settings. Gaining access  
to some User menu screens requires entering a password; the User Menu password is 1490.  
Check www.liebert.com for the latest Liebert iCOM user manual updates, SL-18835.  
Figure 31 Setpoints screen  
UNIT 01  
SETPOINTS  
U101 PASSWORD (Actual Level 0)  
U102 Min Room Temperature Setpoint  
????  
68.0°F  
U103  
U104  
U105  
U106  
U107  
U108  
U109  
U110  
U111  
to select parameter  
to confirm  
for next/previous unit  
then  
to change parameter  
Min Room Temperature Setpoint—Sets the minimum room temperature the unit will attempt to  
maintain. If the temperature falls below this point, the unit will raise the refrigerant temperature to  
reduce the amount of cooling.  
The setting is intended to keep the room temperature above the setpoint. Without a proper setpoint,  
the Liebert XDP can lower the room temperature too much, depending on the room dew point and  
load. This setpoint will reduce the cooling to keep the room temperature above this desired  
temperature.  
NOTE  
This is not a true room temperature setpoint. The Liebert XDP has no heaters; it will try to cool  
as much as possible. If the Liebert XDP is able to cool the room to this setpoint, it will reduce its  
cooling action to try to keep the room temperature at or above this setpoint.  
The default setting is 60°F (15.6°C). The range is 50-80°F (10-27°C).  
For optimal cooling performance, the minimum temperature setpoint should be 1-2° below the  
expected temperature at the remote sensors, which may affect placement of the remote sensors. If the  
minimum temperature setpoint is set above the typical remote temperature sensor reading, it will  
reduce the Liebert XD cooling output and, in extreme cases, cause erratic Liebert XD performance.  
Spare Parts  
Spare Parts—The spare parts lists contains a detailed description and part number that can be used  
to order parts for the unit. These part numbers are specific to each model and option installed on the  
unit.  
Event Log  
Event Log—The event log displays all events and actions that have been generated by the unit.  
When multiple units are networked you will see the event log of the whole system. Each event shows  
the unit that generated the alarm, time and date stamp, a description and the event type.  
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Liebert iCOM Control—Firmware Version XP1.00.010.STD  
Figure 32 Set Alarms screen  
SET ALARMS (page 1 of 1)  
UNIT 01  
U201 PASSWORD (Actual Level 0)  
U202 High Room Air Temperature  
U203 Low Room Air Temperature  
U204 High Room Dewpoint  
????  
80.0°F  
55.0°F  
65.0°F  
80.0°F  
U205 High Refrigerant Temperature  
U206  
U207 High Chilled Water Temperature  
60.0°F  
U208  
U209  
U210  
U211  
to select parameter  
to confirm  
for next/previous unit  
then  
to change parameter  
High Room Air Temperature—Sets the threshold where a high room temperature alarm will  
occur, based on the actual reading from either remote Sensor A or B. The range for the high room air  
temperature alarm is 33.8-95°F (1-35°C); the default is 80.0°F (26.7°C).  
Low Room Air Temperature—Sets the threshold where a low room temperature alarm will occur,  
based on the actual reading from either remote Sensor A or B. The range for the high room air  
temperature alarm is from 33.8 to 95°F (1 to 35°C); the default is 55.0°F (12.8°C).  
High Room Dewpoint—Sets the threshold where a high room dew point alarm will occur, based on  
the calculated values from either remote Sensor A or remote Sensor B. The range for the high room  
dew point alarm is from 33.8 to 95°F (1 to 35°C); the default is 65°F (18.3°C).  
High Refrigerant Temperature—Sets the threshold where a high refrigerant temperature alarm  
will occur based on the actual reading from the supply refrigerant sensor. The supply refrigerant  
temperature is from the Liebert XDP to the modules. The range for the high supply refrigerant  
temperature alarm is from 33.8 to 95°F (1 to 35°C); the default is 80°F (26.7°C).  
High Chilled Water Temperature—Sets the threshold where a high chilled water temperature  
alarm will occur based on the actual reading from the supply chilled water sensor. The range for the  
high chilled water temperature is from 33.8 to 95°F (1 to 35°C); the default is 60°F (15.6°C).  
35  
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Liebert iCOM Control—Firmware Version XP1.00.010.STD  
Figure 33 Sensor Data screen, page 1 of 2  
Sensor A Temperature  
Sensor A Humidity  
Sensor A Dew Point  
Sensor B Temperature  
Sensor B Humidity  
Sensor B Dew Point  
62.8°F  
42.20%  
39.4°F  
71.2°F  
29.60°%  
37.8°F  
Supply Refrigerant Temperature  
55.0°F  
Supply Chilled Water Temperature  
55.0°F  
Sensor A Temperature—Displays the temperature of the remote CAN Temp Humidity sensor  
designated as Sensor A.  
Sensor A Humidity—Displays the humidity of the remote CAN Temp Humidity sensor designated  
as Sensor A.  
Sensor A Dew Point—Displays the dew point of the remote CAN Temp Humidity sensor designated  
as Sensor A.  
Sensor B Temperature—Displays the temperature of the remote CAN Temp Humidity sensor  
designated as Sensor B.  
Sensor B Humidity—Displays the humidity of the remote CAN Temp Humidity sensor designated  
as Sensor B.  
Sensor B Dew Point—Displays the dew point of the remote CAN Temp Humidity sensor designated  
as Sensor B.  
Supply Refrigerant Temperature—Displays the actual supply refrigerant temperature from the  
Liebert XDP to the modules.  
Supply Chilled Water Temperature—Displays the actual the Supply Chilled Water temperature  
to the Liebert XDP.  
36  
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Liebert iCOM Control—Firmware Version XP1.00.010.STD  
Figure 34 Sensor Data screen, page 2 of 2  
Daily High Temperature  
Daily Low Temperature  
Daily High Humidity  
07:49:57  
07:11:30  
11:31:46  
07:56:18  
07:47:26  
08:02:20  
13:01:25  
13:01:11  
14:01:33  
14:01:45  
72°F  
64°F  
45%  
34%  
45°F  
37°F  
69°F  
69°F  
55°F  
55°F  
Daily Low Humidity  
Daily High Dew Point  
Daily Low Dew Point  
Daily High Refrigerant Temp  
Daily Low Refrigerant Temp  
Daily High CW Temp  
Daily Low CW Temp  
Daily High Temperature—Shows the highest temperature in a rolling 24 hour period for either  
remote Sensor A or remote Sensor B.  
Daily Low Temperature—Shows the lowest temperature in a rolling 24 hour period for either  
remote Sensor A or remote Sensor B.  
Daily High Humidity—Shows the highest humidity in a rolling 24 hour period for either remote  
Sensor A or remote Sensor B.  
Daily Low Humidity—Shows the lowest humidity in a rolling 24 period for either remote Sensor A  
or remote Sensor B.  
Daily High Dew Point—Shows the highest dew point in a rolling 24 hour period for either remote  
Sensor A or remote Sensor B.  
Daily Low Dew Point—Shows the lowest dew point in a 24 hour period for either remote Sensor A  
or remote Sensor B.  
Daily High Refrigerant Temperature—Shows the highest supply refrigerant temperature in a  
rolling 24 hour period from the Liebert XDP to the modules.  
Daily Low Refrigerant Temperature—Shows the lowest supply refrigerant temperature in a  
rolling 24 hour period from the Liebert XDP to the modules.  
Daily High Chilled Water Temperature—Shows the highest chilled water supply temperature  
being delivered to the Liebert XDP in a rolling 24 hour period.  
Daily Low Chilled Water Temperature—Shows the lowest chilled water return temperature  
being delivered to the Liebert XDP in a rolling 24 hour period.  
37  
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Liebert iCOM Control—Firmware Version XP1.00.010.STD  
Figure 35 Display Setup screen  
DISPLAY SETUP  
SYSTEM  
U401 Language  
U402 Date  
U403 Time  
U404 Temperature Indication  
U405 Display Contrast  
U406 Buzzer Frequency  
U407 Backlite Off after  
U408 Screen  
ENGLISH (US)  
8/27/2012  
15:03:17  
°F  
30  
Off/ 50  
5 min  
Unit View  
U409  
U410 Display Colors  
U411 Date Format  
Normal  
mm/dd/yyyy  
to select parameter  
to confirm  
for next/previous unit  
then  
to change parameter  
Language—Sets the language on the display. Changing this setting changes all menu parameters to  
the selected language.  
Date—Sets the internal date of the unit. If this unit is connected to other units with the unit-to-unit  
network connection, each unit will reflect the last date set.  
Time—Sets the internal time of the unit. If this unit is connected to other units with the unit-to-unit  
network connection each unit will reflect the last time set.  
Temperature Indication—Selects the actual and setpoint temperature scale. Selecting C will set  
the unit to display in Celsius and F will set the unit to display in Fahrenheit.  
Display Contrast—Changes the contrast of the display to adjust for different viewing angles, low  
light and bright light conditions. As the display ages, the contrast may require adjustment for  
viewing.  
Buzzer Frequency—Changes the audible noise frequency of the built-in buzzer. The buzzer will  
sound when its frequency is being adjusted, easing selection of a frequency easily detected when an  
alarm occurs.  
Backlite Off After—Controls how long the back-light remains active when the display is unused.  
When the buttons on the front display have not been pressed for the time selected in this parameter,  
the back-light will turn Off, extending the life of the display and saving energy.  
Screen—Controls the screen layout. The Liebert XDP has one view, Unit View.  
Display Colors—Selects the background color. Inverted sets the display to show white font with  
blue background and Normal sets a white background with blue font.  
Date Format—Date format changes the month, day and year arrangement shown on the front  
display and on event time stamps.  
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Liebert iCOM Control—Firmware Version XP1.00.010.STD  
Figure 36 Module Status screen, page 1 of 20  
U901 NODE 81 AZ81  
ONLINE  
U902  
57°F  
U903  
U904  
U905 92°F  
U906  
XDV  
U907  
U908  
U909  
66°F 65°F  
U910  
U911 Model / Capacity  
U912 Left Fan Status  
U913 Right Fan Status  
XDV8SK  
ON  
ON  
8
KW  
Module Node ID—The location within the CANbus. Each module’s ID is factory-set to 80 and is  
automatically changed during setup; requires no user action.  
Module Labels—A four-character label consisting of two letters and two numerals. This is the standard  
nomenclature for Data Center Grid assignment of racks. Additionally, the module’s location can be  
denoted with 10 characters, either letters or non-alphanumeric characters from a built-in list. Either or  
both labels can be used and are entered using the Module Setup found in the Service menu (S910).  
Module Status—Indicates whether the smart module is connected to the CANbus.  
Figure 37 Liebert XDV Smart Module Status screen  
U901 NODE 81 AZ81  
ONLINE  
U902  
57°F  
U903  
U904  
U905 92°F  
U906  
XDV  
U907  
U908  
U909  
U910  
66°F 65°F  
8
U911 Model / Capacity  
U912 Left Fan Status  
U913 Right Fan Status  
XDV8SK  
ON  
ON  
KW  
U905—Displays the temperature of the air entering the Liebert XDV.  
U908—Displays the temperature of the air leaving the right and left fan of the Liebert XDV.  
U911—Displays the module type and calculated local module capacity; possible module types are  
XDV8SK, XDV8SS, XDV8ST, XDV10SK, XDV10SS and XDV10ST.  
U912—Displays the left fan status; possible values are ON and OFF.  
U913—Displays the right fan status; possible values are ON, OFF and ON ECON. ON ECON  
indicates that only one fan is On.  
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Liebert iCOM Control—Firmware Version XP1.00.010.STD  
Figure 38 Liebert XDH Smart Module Status screen—each bank shown separately  
U901 NODE 82 AA82  
ONLINE  
U902  
U903  
U904  
U905  
U906  
U907  
U908  
U909  
U910  
57°F  
98°F  
XDH  
TOP/  
73°F  
98°F  
BOTTOM  
U911 Model / Capacity  
XDH32SK  
15  
KW  
U912 Middle Fan Status  
U913 Top and Bottom Fan Status  
ON  
ON  
U904—Displays the temperature of the air entering the top of the bank of the Liebert XDH.  
U905—Displays the temperature of the air leaving the Liebert XDH.  
U907—Displays the temperature of the air entering the bottom of the bank of the Liebert XDH.  
U911—Displays the module type and calculated local module capacity; possible module types are  
XDH20SK, XDH20SS, XDH32SK and XDH32SS.  
U912—Displays the middle fan status; possible values are ON and OFF.  
U913—Displays the top and bottom fans’ status; possible values are ON, OFF and ON ECON. (ON  
ECON indicates that two fans have been turned On.)  
Figure 39 Liebert XDO Smart Module Status screen  
U901 NODE 81 AF01  
ONLINE  
U902  
U903  
U904  
U905  
U906  
U907  
U908  
U909  
U910  
57°F  
U911 Model / Capacity  
U912 Fan Status  
U913  
XDO20SK 20  
ON  
KW  
U907—Displays the temperature of the air entering from the right and left of the Liebert XDO.  
U910—Displays the temperature of the air leaving the Liebert XDO.  
U911—Displays the module type and calculated local module capacity; possible module types  
XDO16SK, XDO16SS and XDO20SS.  
U912—Displays the fan status; possible values are ON and OFF.  
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Liebert iCOM Control—Firmware Version XP1.00.010.STD  
Figure 40 Total Run Hours screen  
UNIT 01  
U501  
Actual Hours  
Limit  
U502 Pump 1  
U503 Pump 2  
U504  
454  
413  
0
0
U505  
U506  
U507  
U508  
U509  
U510  
U511  
to select parameter  
to confirm  
for next/previous unit  
then to change parameter  
The parameter shows the actual hours Pump 1 and Pump 2 have operated and the maximum time  
Pump 1 can operate before the next maintenance.  
4.9  
Liebert iCOM Service Menu Icons and Legend  
Figure 41 Liebert iCOM Service Menu icons  
°C / °F  
% RH  
SET  
SET  
ALARMS  
SERVICE  
WELLNESS  
Setpoints  
View and change  
Maintenance/  
Wellness  
Diagnostics/  
Service Mode  
Enter Diagnostics/  
Service Mode for  
troubleshooting  
and repair  
Set Alarms  
Change settings for  
alarms  
Unit Diary  
Shows all program  
changes and  
maintenance  
performed,  
operational  
setpoints  
Settings  
Shows all mainte-  
nance records, cal-  
culates next  
maintenance date  
NETWORK  
SET  
UP  
XDIO  
+ / -  
Sensor  
Network  
Setup or alter  
network setting.  
Smart Module  
Setup of alarms  
and events. Set  
temperature limits  
for supply and  
return sensors.  
Label smart  
Service Contacts  
Contains key  
contact information  
Options Setup  
Enter specific  
settings for various  
options  
Calibration/Setup  
Setup and calibrate  
sensors for site  
for service  
modules, view  
firmware version  
NOTE  
Menu shows icons only; text is explanatory and does not appear on the Liebert iCOM display.  
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Liebert iCOM Control—Firmware Version XP1.00.010.STD  
Figure 42 Liebert XDP Service Menu screen  
°C / °F  
% RH  
SET  
SET  
ALARMS  
+
WELLNESS  
SERVICE  
NETWORK  
SET  
UP  
XDIO  
+/-  
tonavigate  
ESC to unselect  
to change level  
to open requested menu  
4.10 Liebert iCOM Service Menu Screens  
Service menus allow customized settings for site operations. Service Menu screens employ a coding  
that begins with “S” and is followed by parameters and information, such as settings. Gaining access  
to most Service Menus requires entering a password; the Service Menu password is 5010; see 4.3.3 -  
Entering the Password for assistance.  
The Liebert iCOM control firmware is being updated constantly. As a result, the Service Menu  
parameters in this manual may be slightly different from what is shown on a cooling unit’s display.  
Check www.liebert.com for the latest Liebert iCOM user manual updates.  
Figure 43 Setpoints screen  
UNIT 01  
????  
60.0°F  
Intelligent  
7.0°F  
S101  
S102  
S103  
S104  
S105  
S106  
S107  
S108  
S109  
S110  
S111  
PASSWORD (Actual Level 0)  
Min Room Temperature Setpoint  
Temperature Control Type  
Temperature Proportional Band  
Temperature Integration Tiime  
Temperature Derivative  
Dewpoint Margin  
Minimum Control Point  
Min Percent Cooling Setpoint  
min  
sec  
4.0°F  
50.0°F  
10%  
to select parameter  
to confirm  
for next/previous unit  
then to change parameter  
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Liebert iCOM Control—Firmware Version XP1.00.010.STD  
Min Room Temperature Setpoint—Sets the minimum room temperature the unit will attempt to  
maintain. If the temperature falls below this point, unit will raise the refrigerant temperature to  
reduce the amount of cooling. Adjustable from 50 to 80°F (10.0 to 26.7°C), the factory default setting  
is 60°F (15.6°C).  
NOTE  
This is not a true room temperature setpoint. The Liebert XDP has no heaters; it will try to cool  
as much as possible. If the Liebert XDP is able to cool the room to this setpoint, it will reduce its  
cooling action to try to keep the room temperature at or above this setpoint.  
Temperature Control Type—Selects the type of control the system will use to activate cooling. The  
Liebert iCOM control has three temperature control types: Proportional, PI and Intelligent. The  
factory default is Intelligent.  
Proportional—If Proportional Control is selected, the percent cooling requirement is  
determined by the difference between the air temperature sensor reading and the temperature  
setpoint. As the air temperature rises above the temperature setpoint, the percent cooling  
required increases proportionally (from 0 to 100%) over half the programmable temperature  
proportional band. The percent heating requirement (0 to 100%) is determined the same way  
when the air temperature falls below the setpoint.  
PI—If PI Control is selected, the percent cooling requirement is calculated by adding together two  
individual terms, proportional and integral. The proportional term is calculated in a manner  
similar to the previously described Proportional control. The integral term (sometimes called  
reset action) is calculated by measuring how much and for how long the air temperature has been  
above or below the setpoint. If the actual air temperature is above the setpoint, the percent  
requirement is slowly but continuously increased until the total is sufficient to bring the return  
room air back to the setpoint.  
Intelligent—If Intelligent Control is selected, the air temperature is controlled at or near the  
setpoint. The percent temperature adjustment required is calculated based on logic that is  
programmed into the control. These rules simulate the actions that would be taken by a human  
operator manually controlling the system.  
Temperature Proportional Band—Adjusts the activation points of compressors or rate of change  
based on the actual sensor values deviation from setpoint. The smaller this number the faster the  
compressors and valve(s) will increase capacity. Too small of a number may cause the unit to short  
cycle the compressors or excessively reposition the valve. This parameter is adjustable from 1.8 to  
54.0°F (1.0 to 30.0°C). The factory default setting is 7.0°F (3.9°C).  
Temperature Integration Time—Temperature integration takes into consideration the amount of  
time the actual temperature has deviated from the setpoint. The larger this deviation is the longer  
the unit will wait before corrective action is taken to achieve the setpoint. This parameter is  
adjustable from 0 to 15 minutes. The factory default is 0.  
Temperature Derivative Time—Monitors the rate of change and will reduce or increase the  
amount of corrective action based on the actual temperature increasing or decreasing toward the  
temperature setpoint. This parameter is adjustable from 0-900 seconds. The factory default is 0.  
Dewpoint Margin—Selects the difference between the room dew point and the refrigerant  
temperature control point. This parameter is adjustable from 4.0 to 10.0°F (2.2 to 6.0°C). The factory  
default setting is 4.0°F (2.2°C).  
Minimum Control Point—Sets the minimum supply refrigerant temperature the Liebert XDP will  
maintain. This parameter is adjustable from 40 to 80°F (4.4 to 27.0°C). The factory default is 55°F  
(12.8°C).  
Min Percent Cooling Setpoint—Selects the lowest percent call for cooling during normal  
operations. Whenever the unit is not in startup mode or OFF, the percent call for cooling cannot go  
below this value. The parameter is adjustable from 5 to 30%. The factory default is 15%.  
43  
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Liebert iCOM Control—Firmware Version XP1.00.010.STD  
Figure 44 Maintenance—Basic Settings screen, page 1 of 7  
to select parameter  
to confirm  
for next/previous unit  
then to change parameter  
Maintenance Frequency Per Year—Sets the number of expected maintenance visits in a one year  
time span.  
Max Bonus—Increases the time until the next required maintenance. Service personnel should  
assign a bonus when a service visit finds all components working optimally.  
Max Penalty—Decreases the time until the next maintenance cycle. Service personnel should assign  
a penalty when a service visit finds excessive wear on components.  
Last Maintenance—Date set during the service call. It also indicates to other service personnel the  
date of the last visit.  
Service Engineer—Provides a label for the service representative to list either the company name  
or representative’s name.  
Confirm PM—Confirms that the service representative has completed the preventive maintenance  
and resets the next maintenance date.  
Calculated Next Maintenance—Provides a date to for the next expected maintenance based on the  
last preventive maintenance performed (Confirm PM), component starts, run hours and the penalty  
or bonus set in the Liebert iCOM control.  
44  
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Liebert iCOM Control—Firmware Version XP1.00.010.STD  
Figure 45 Maintenance—Pump 1 Settings screen, page 2 of 7  
PASSWORD (Actual Level 0)  
Number of Starts  
Run Hours  
Average Run Time  
Starts per Day Best  
Starts per Day Worst  
Number of Alarms  
Actual Bonus  
????  
31  
453hrs  
876min  
1
24  
1
0
to select parameter  
to confirm  
for next/previous unit  
then to change parameter  
Number of Starts—Shows the number of starts for the unit’s Pump 1.  
Run Hours—Shows the number of run hours for the unit’s Pump 1.  
Average Run Time—Shows the average run time of the unit’s Pump 1.  
Starts per Day Best—Displays the lowest number of starts in a rolling 24 hour period for Pump 1.  
Starts per Day Worst—Displays the highest number of starts in a rolling 24 hour period for Pump 1.  
Number of Alarms—Displays the number of alarms that have occurred with the unit’s Pump 1.  
Actual Bonus—Displays the actual calculation of wellness for the unit’s Pump 1. The unit will  
always take the value from the worst component for the next maintenance indication.  
45  
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Liebert iCOM Control—Firmware Version XP1.00.010.STD  
Figure 46 Maintenance—Pump 2 Settings screen, page 3 of 7  
PASSWORD (Actual Level 0)  
Number of Starts  
Run Hours  
Average Run Time  
Starts per Day Best  
Starts per Day Worst  
Number of Alarms  
Actual Bonus  
????  
2
0hrs  
0min  
1
24  
1
0
to select parameter  
to confirm  
for next/previous unit  
then to change parameter  
Number of Starts—Shows the number of starts for the unit’s Pump 2.  
Run Hours—Shows the number of run hours for the unit’s Pump 2.  
Average Run Time—Shows the average run time of the unit’s Pump 2.  
Starts per Day Best—Displays the lowest number of starts in a rolling 24 hour period for Pump 2.  
Starts per Day Worst—Displays the highest number of starts in a rolling 24 hour period for Pump 2.  
Number of Alarms—Displays the number of alarms that have occurred with the unit’s Pump 2  
Actual Bonus—Displays the actual calculation of wellness for the unit’s Pump 2. The unit will  
always take the value from the worst component for the next maintenance indication.  
Figure 47 Maintenance screens, pages 4 through 7  
????  
????  
PASSWORD (Actual Level 0)  
PASSWORD (Actual Level 0)  
to select parameter  
to confirm  
to select parameter  
to confirm  
for next/previous unit  
for next/previous unit  
then  
to change parameter  
then  
to change parameter  
PASSWORD (Actual Level 0)  
????  
PASSWORD (Actual Level 0)  
????  
to select parameter  
to confirm  
to select parameter  
to confirm  
for next/previous unit  
then to change parameter  
for next/previous unit  
then to change parameter  
Pages 4 through 7 apply only to the Liebert XDC. No Liebert XDP parameters are present.  
46  
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Liebert iCOM Control—Firmware Version XP1.00.010.STD  
Figure 48 Diagnostics/Service Mode screen, page 1 of 6  
????  
PASSWORD (Actual Level 0)  
to select parameter  
to confirm  
for next/previous unit  
then to change parameter  
Page 1 applies to the Liebert XDC only. No Liebert XDP parameters are present.  
Figure 49 Diagnostics/Service Mode screen, page 2 of 6  
PASSWORD (Actual Level 0)  
Manual Mode  
Pump 1  
????  
No  
Off  
Off  
Pump 2  
3P Start Completed/Active  
3P Actuator Input Request  
3P Actuator Position  
3P Actuator Open  
3P Actuator Close  
Valve Feedback  
No No  
30.00%  
30%  
Off  
Off  
30%  
to select parameter  
to confirm  
for next/previous unit  
then to change parameter  
Manual Mode—Used to place the Liebert iCOM control in manual mode. This is the initial setting  
necessary to activate any of the following items. When the Liebert iCOM is not in manual mode, each  
service menu item shows the current status of each parameter.  
Pump 1—Starts the unit’s Pump 1.  
Pump 2—Starts the unit’s Pump 2.  
3P Start Active/Complete—Displays if the startup routine is active, and if it is completed.  
3P Actuator Input Request—Shows the % call for cooling.  
3P Actuator Position—Sets the position of the actuator 0-100% in manual mode.  
3P Actuator Open—Opens the 3P actuator when set to ON in manual mode.  
3P Actuator Close—Closes the 3P actuator when set to ON in manual mode  
Valve Feedback—Opens the valve % in manual mode.  
47  
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Liebert iCOM Control—Firmware Version XP1.00.010.STD  
Figure 50 Diagnostics/Service Mode screen, page 3 of 6  
????  
PASSWORD (Actual Level 0)  
to select parameter  
to confirm  
for next/previous unit  
then to change parameter  
Page 3 applies to the Liebert XDC only. No Liebert XDP parameters are present.  
Figure 51 Diagnostics/Service Mode screen, page 4 of 6  
????  
PASSWORD (Actual Level 0)  
Manual Mode Control Type  
Manual Deviation  
Full  
12%  
30%  
0%  
60%  
58%  
Off  
Analog Output Ramp 1  
Analog Output Ramp 2  
Analog Output Ramp 3  
Analog Output Ramp 4  
Alarm Relay  
Warning Relay  
Off  
to select parameter  
to confirm  
for next/previous unit  
then  
to change parameter  
Manual Mode Control Type—Not currently used.  
Manual Deviation—Not currently used.  
Analog Output Ramp 1—Sets the value of Analog Output 1 value as a percentage. The factory  
default for the Liebert XDP is the Valve % Open.  
Analog Output Ramp 2—Sets the value of Analog Output 2 value as a percentage. The factory  
default for the Liebert XDP is the Call for Cooling.  
Analog Output Ramp 3—Sets the value of Analog Output 3 value as a percentage. The factory  
default for the Liebert XDP is the CW Temp.  
Analog Output Ramp 4—Sets the value of Analog Output 4 value as a percentage. The factory  
default for the Liebert XDP is the refrigerant temperature.  
Alarm Relay—Used to activate the Liebert iCOM’s common alarm relay output.  
Warning Relay—Used to activate the Liebert iCOM’s warning relay output.  
48  
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Liebert iCOM Control—Firmware Version XP1.00.010.STD  
Figure 52 Diagnostics/Service Mode screen, page 5 of 6  
PASSWORD (Actual Level 0)  
Status Remote Shutdown  
Status Fan Failure  
????  
o–o On  
o/o  
o/o  
Ok  
Act  
Status Diff Press Switch1  
Status Customer Input 1  
Status Condensation Detect  
Status Unit Ready  
o/o  
o/o  
Ok  
Ok  
o–o On  
to select parameter  
to confirm  
for next/previous unit  
then to change parameter  
Status Remote Shutdown—Displays the status of the unit’s remote shutdown input.  
Status Fan Failure—Displays the status of the dry contact to communicate fan failure at a module.  
(The dry contacts are not used to communicate a fan failure alarm when using CANbus.)  
Status Diff Press Switch 1—Displays the status of the differential pressure switch.  
Status Customer Input 1—Displays the status of the customer input 1 alarm.  
Status Condensation Detect—Displays the status of the dry contact to communicate condensate  
detection at a module.  
Status Unit Ready—Shows unit status when a secondary device, such as a fire detection system, is  
employed.  
Figure 53 Diagnostics/Service Mode screen, page 6 of 6  
????  
PASSWORD (Actual Level 0)  
to select parameter  
to confirm  
for next/previous unit  
then to change parameter  
Page 6 applies to the Liebert XDC only. No Liebert XDP parameters are present.  
49  
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Liebert iCOM Control—Firmware Version XP1.00.010.STD  
Figure 54 Set Alarms screen, page 1 of 7  
PASSWORD (Actual Level 0)  
????  
88.0°F  
55.0°F  
65.0°F  
80.0°F  
High Room Air Temperature  
Low Room Air Temperature  
High Room Dewpoint  
High Refrigerant Temperature  
High Chilled Water Temperature  
60.0°F  
to select parameter  
to confirm  
for next/previous unit  
then to change parameter  
High Room Air Temperature—Sets the threshold for a high room air temperature alarm. The  
range for the high room air temperature alarm is from 33.8 to 95°F (1 to 35°C); the default is 80°F  
(26.7°C).  
Low Room Air Temperature—Sets the threshold for a low room air temperature alarm. The range  
for the low room air temperature alarm is from 33.8 to 95°F (1 to 35°C); the default is 55°F (12.8°C).  
High Room Dewpoint—Sets the threshold for a return high dew point alarm. The range for the  
high room dew point alarm is from 33.8 to 95°F (1 to 35°C); the default is 65°F (18.3°C).  
High Refrigerant Temperature—Sets the threshold for a high a refrigerant temperature alarm.  
The range for the high supply refrigerant temperature alarm is from 33.8 to 95°F (1 to 35°C); the  
default is 80°F (26.7°C).  
High Chilled Water Temperature—Sets the threshold chilled water temperature for a supply high  
chilled water temperature alarm. The range for the high supply refrigerant temperature alarm is  
from 33.8 to 95°F (1 to 35°C); the default is 60°F (15.6°C).  
50  
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Liebert iCOM Control—Firmware Version XP1.00.010.STD  
Figure 55 Set Alarms screen, page 2 of 7  
PASSWORD (Actual Level 0)  
Customer Input 1  
Customer Input 1 active when  
????  
Water Alarm  
Closed  
WARNING ACTIVATES ALARM RELAY  
Reset Disabled Alarms  
Yes  
No  
to select parameter  
to confirm  
for next/previous unit  
then to change parameter  
Customer Input 1—Selects the device and operation of the customer input. Each event reflects a  
different alarm and possible action to the unit. Selectable options are:  
Call Service  
C-Input  
Water  
Smoke  
Customer Input 1 active when—Selects whether the Customer Input 1 input is normally closed or  
normally open.  
WARNING ACTIVATES ALARM RELAY—Sets the alarm relay (K3) to activate when a warning  
occurs.  
Reset Disabled Alarms—Resets disabled events.  
The Set Alarm Screens (Figure 56 through 60) permit setting the operation of an active alarm. Each  
event can be enabled or disabled and can be set to operate as an alarm, warning or message. The  
delay is the time the control waits before reporting the event.  
Alarm: Annunciates the buzzer, triggers a monitoring event, triggers the alarm relay and flashes  
the red LED on the display.  
Warning: Annunciates the buzzer, triggers a monitoring event, shows the event in the event  
viewer / front display and flashes the red LED on the display.  
Message: Shows the event in the event viewer and on the front display.  
51  
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Liebert iCOM Control—Firmware Version XP1.00.010.STD  
Figure 56 Set Alarms screen, page 3 of 7  
S223  
S224  
S225  
S226  
S227  
S228  
S229  
S230  
S231  
S232  
S233  
S234  
S235  
PASSWORD (Actual Level 0)  
????  
DELAY EN-DIS TYPE  
30 ENABLE ALM  
30 ENABLE ALM  
30 ENABLE ALM  
30 ENABLE ALM  
30 ENABLE ALM  
ENABLE ALM  
HIGH TEMP SENSOR A  
LOW TEMP SENSOR A  
HIGH TEMP SENSOR B  
LOW TEMP SENSOR B  
HIGH DEWPOINT  
SENSOR A FAILURE  
SENSOR B FAILURE  
HIGH CHILLED WATER TEMP  
ENABLE ALM  
30 ENABLE ALM  
SUPPLY CW SENSOR FAILURE  
ENABLE ALM  
to select parameter  
to confirm  
for next/previous unit  
then to change parameter  
HIGH TEMP SENSOR A—Enables or disables the High Temperature Sensor A event, which occurs  
when the reading from Sensor A is above the user-specified alarm setpoint. Sets how the event is  
reported: as an alarm, a warning or a message. Specifies how long the control waits before reporting  
the event.  
LOW TEMP SENSOR A—Enables or disables the Low Temperature Sensor A event, which occurs when  
the reading from Sensor A is below the user-specified alarm setpoint. Sets how the event is reported: as an  
alarm, a warning or a message. Specifies how long the control waits before reporting the event.  
HIGH TEMP SENSOR B—Enables or disables the High Temperature Sensor B event, which occurs  
when the reading from Sensor B is above the user-specified alarm setpoint. Sets how the event is  
reported as an alarm, a warning or a message. Specifies how long the control waits before reporting  
the event.  
LOW TEMP SENSOR B—Enables or disables the Low Temperature Sensor B event, which occurs  
when the reading from Sensor B is below the user-specified alarm setpoint. Sets how the event is  
reported: as an alarm, a warning or a message. Specifies how long the control waits before reporting  
the event.  
HIGH DEWPOINT—Enables or disables the High Dewpoint event, which occurs when the  
calculated dew point at Sensor A or Sensor B is above the user-specified alarm setpoint. Sets how the  
event is reported: as an alarm, a warning or a message. Specifies how long the control waits before  
reporting the event.  
SENSOR A FAILURE—Enables or disables the Sensor A Failure event, which occurs when the  
control no longer senses a signal from Sensor A. Sets how the event is reported: as an alarm, a  
warning or a message. Specifies how long the control waits before reporting the event.  
SENSOR B FAILURE—Enables or disables the Sensor B Failure event, which occurs when the  
control no longer senses a signal from Sensor B. Sets how the event is reported: as an alarm, a  
warning or a message. Specifies how long the control waits before reporting the event.  
HIGH CHILLED WATER TEMP—Enables or disables the High Chilled Water Temp event, which  
occurs when the reading from Supply Chilled Water Sensor is above the user-specified alarm setpoint.  
Sets how the event is reported: as an alarm, a warning or a message. Specifies how long the control  
waits before reporting the event.  
SUPPLY CW SENSOR FAILURE—Enables or disables the Supply CW Sensor Failure Failure  
event, which occurs when the control no longer senses a signal from Supply CW Sensor. Sets how the  
event is reported: as an alarm, a warning or a message. Specifies how long the control waits before  
reporting the event.  
52  
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Liebert iCOM Control—Firmware Version XP1.00.010.STD  
Figure 57 Set Alarms screen, page 4 of 7  
S236  
S237  
S238  
S239  
S240  
S241  
S242  
S243  
S244  
S245  
S246  
S247  
S248  
PASSWORD (Actual Level 0)  
????  
DELAY EN-DIS TYPE  
30 ENABLE ALM  
HIGH REFRIGERANT TEMP  
LOW REFRIGERANT TEMP  
SUPPLY REFRIGERANT SENSOR  
LOSS OF FLOW PUMP 1  
LOSS OF FLOW PUMP 2  
PUMP SHORT CYCLE  
30 ENABLE ALM  
ENABLE ALM  
ENABLE ALM  
ENABLE ALM  
ENABLE ALM  
CONTROL VALVE FAILURE  
ENABLE ALM  
to select parameter  
to confirm  
for next/previous unit  
then to change parameter  
HIGH REFRIGERANT TEMP—Enables or disables the High Refrigerant Temp event, which  
occurs when the reading from supply refrigerant temperature sensor is above the user-specified  
alarm setpoint. Sets how the event is reported: as an alarm, a warning or a message. Specifies how  
long the control waits before reporting the event.  
LOW REFRIGERANT TEMP—Enables or disables the Low Refrigerant Temp event, which occurs  
when the reading from supply refrigerant temperature sensor is below the user-specified alarm  
setpoint. Sets how the event is reported: as an alarm, a warning or a message. Specifies how long the  
control waits before reporting the event.  
SUPPLY REFRIGERANT SENSOR—Enables or disables the Supply Refrigerant Sensor event,  
which occurs when the control no longer senses a signal from the Supply Refrigerant Sensor. Sets how  
the event is reported: as an alarm, a warning or a message. Specifies how long the control waits before  
reporting the event.  
LOSS OF FLOW PUMP 1—Enables or disables the Loss of Flow Pump 1 event, which occurs when  
Pump 1 is commanded to run and the differential pressure switch does not sense differential  
pressure. Sets how the event is reported: as an alarm, a warning or a message. Specifies how long the  
control waits before reporting the event.  
LOSS OF FLOW PUMP 2—Enables or disables the Loss of Flow Pump 2 event, which occurs when  
Pump 2 is commanded to run and the differential pressure switch does not sense differential  
pressure. Sets how the event is reported: as an alarm, a warning or a message. Specifies how long the  
control waits before reporting the event.  
PUMP SHORT CYCLE—Enables or disables the Pump Short Cycle event, which occurs when flow  
is not established by either pump for 30 minutes. Sets how the event is reported: as an alarm, a  
warning or a message. Specifies how long the control waits before reporting the event.  
CONTROL VALVE FAILURE—Enables or disables the Control Valve Failure event, which occurs  
when the chilled water control valve has been commanded by the control to open or close and no  
change is detected by the valve position signal. Sets how the event is reported: as an alarm, a warning  
or a message. Specifies how long the control waits before reporting the event.  
53  
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Liebert iCOM Control—Firmware Version XP1.00.010.STD  
Figure 58 Set Alarms screens, pages 5 and 6  
S259  
S250  
S251  
S252  
S253  
S254  
S255  
S256  
S257  
S258  
S259  
S260  
S261  
S262  
S263  
S264  
S265  
S266  
S267  
S268  
S269  
S270  
S271  
S272  
S273  
S274  
PASSWORD (Actual Level 0)  
????  
PASSWORD (Actual Level 0)  
????  
DELAY EN-DIS TYPE  
DELAY EN-DIS TYPE  
to select parameter  
to confirm  
to select parameter  
to confirm  
for next/previous unit  
then to change parameter  
for next/previous unit  
then to change parameter  
Pages 5 and 6 apply to the Liebert XDC only. No Liebert XDP parameters are present.  
Figure 59 Set Alarms screen, page 7 of 7  
S275  
S276  
S277  
S278  
S279  
S280  
S281  
S282  
S283  
S284  
S285  
S286  
S287  
PASSWORD (Actual Level 0)  
????  
DELAY EN-DIS TYPE  
CONDENSATION DETECTED  
FAN FAILURE  
3 ENABLE ALM  
3 ENABLE ALM  
5 ENABLE ALM  
5 ENABLE ALM  
5 ENABLE ALM  
ENABLE WRN  
ENABLE WRN  
5 ENABLE ALM  
ENABLE WRN  
CUSTOMER INPUT1  
SMOKE DETECTED  
WATER UNDER FLOOR  
UNIT X DISCONNECTED  
WORKING HRS EXCEEDED  
CALL SERVICE  
LOSS OF POWER  
to select parameter  
to confirm  
for next/previous unit  
then to change parameter  
CONDENSATION DETECTED—Enables or disables the Condensation Detected event, which  
occurs when water is detected at a Liebert XD cooling module. Sets how the event is reported: as an  
alarm, a warning or a message. Specifies how long the control waits before reporting the event.  
FAN FAILURE—Enables or disables the Fan Failure event, which occurs when a fan failure occurs  
at a Liebert XD cooling module. Sets how the event is reported: as an alarm, a warning or a message.  
Specifies how long the control waits before reporting the event.  
CUSTOMER INPUT 1—Enables or disables the Customer Input 1 event, which occurs when 24VAC  
is applied to the input. Sets how the event is reported: as an alarm, a warning or a message. Specifies  
how long the control waits before reporting the event.  
SMOKE DETECTED—Enables or disables the Smoke Detected event, which occurs when the  
Customer Input 1 is configured for “Smoke Detected” and 24VAC is applied to the input. Sets how the  
event is reported: as an alarm, a warning or a message. Specifies how long the control waits before  
reporting the event.  
NOTE  
This is not a room smoke detector and is not intended to replace external smoke detectors.  
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Liebert iCOM Control—Firmware Version XP1.00.010.STD  
WATER UNDER FLOOR—Enables or disables the Water Under Floor event, which occurs when  
the Customer Input 1 is configured for “Water Under Floor” and 24VAC is applied to the input. Sets  
how the event is reported: as an alarm, a warning or a message. Specifies how long the control waits  
before reporting the event.  
UNIT X DISCONNECTED—Not currently used.  
WORKING HOURS EXCEEDED—Enables or disables the Working Hrs Exceeded event, which  
occurs when a component has exceeded the user-specified limit. Sets how the event is reported: as an  
alarm, a warning or a message. Specifies how long the control waits before reporting the event.  
CALL SERVICE—Enables or disables the Call Service event, which occurs when the Customer  
Input 1 is configured for “Call Service” and 24VAC is applied to the input. Sets how the event is  
reported: as an alarm, a warning or a message. Specifies how long the control waits before reporting  
the event.  
LOSS OF POWER—Enables or disables the Loss of Power event, which occurs when the unit is On  
and operational and the 24VAC power to the control is lost. Sets how the event is reported: as an  
alarm, a warning or a message. Specifies how long the control waits before reporting the event.  
Figure 60 Sensor Calibration/Setup screen, page 1 of 3  
S601  
S602  
S603  
S604  
S605  
S606  
S607  
S608  
S609  
S610  
S611  
PASSWORD (Actual Level 0)  
Temperature Sensor A  
Calibrated Temperature Sensor A  
Humidity Sensor A  
Calibrated Humidity Sensor A  
Temperature Sensor B  
Calibrated Temperature Sensor B  
Humidity Sensor B  
????  
+0.0°F  
70.3°F  
+0.0°F  
38.3%  
+0.0°F  
72.3°F  
+0.0°F  
35.6%  
Calibrated Humidity Sensor B  
to select parameter  
to confirm  
for next/previous unit  
then to change parameter  
Temperature Sensor A—Adjusts the temperature reading from the actual remote CAN Temp  
Humidity sensor designated as Sensor A to compensate for any error of the sensor or to match other  
sensors in the room.  
Calibrated Temperature Sensor A—Displays the adjusted temperature value of the remote CAN  
Temp Humidity sensor designated as Sensor A. This value is the actual sensor reading plus or minus  
the offset Temperature Sensor A.  
Humidity Sensor A—Adjusts the humidity reading from the actual remote CAN Temp Humidity  
sensor designated as Sensor A to compensate for any error of the sensor or to match other sensors in  
the room.  
Calibrated Humidity Sensor A—Displays the adjusted humidity value of the remote CAN Temp  
Humidity sensor designated as Sensor A. This value is the actual sensor reading plus or minus the  
offset Humidity Sensor A.  
Temperature Sensor B—Adjusts the temperature reading from the actual remote CAN Temp  
Humidity sensor designated as Sensor B to compensate for any error of the sensor or to match other  
sensors in the room.  
Calibrated Temperature Sensor B—Displays the adjusted temperature value of the remote CAN  
Temp Humidity sensor designated as Sensor B. This value is the actual sensor reading plus or minus  
the offset Temperature Sensor B.  
55  
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Liebert iCOM Control—Firmware Version XP1.00.010.STD  
Humidity Sensor B—Adjusts the humidity reading from the actual remote sensor designated as  
Sensor B to compensate for any error of the sensor or to match other sensors in the room.  
Calibrated Humidity Sensor B—Displays the adjusted humidity value of the remote CAN Temp  
Humidity sensor designated as Sensor B. This value is the actual sensor reading plus or minus the  
offset Humidity Sensor B.  
Figure 61 Sensor Calibration/Setup screen, page 2 of 3  
S612  
S613  
S614  
S615  
S616  
S617  
S618  
S619  
S620  
S621  
S622  
PASSWORD (Actual Level 0)  
Supply Refrigerant Sensor  
Calibrated Supply Refrigerant Sensor  
????  
+0.0°F  
58.5°F  
Supply Chilled Water Sensor  
Calibrated Supply Chilled Water Sensor  
+0.0°F  
60.1°F  
for next/previous unit  
then to change parameter  
to select parameter  
to confirm  
Supply Refrigerant Sensor—Adjusts the temperature reading from the actual supply refrigerant  
sensor to compensate for any error of the sensor.  
Calibrated Supply Refrigerant Sensor—Displays the adjusted temperature value of the supply  
refrigerant sensor. This value is the actual sensor reading plus or minus the offset Supply Refrigerant  
Sensor.  
Supply Chilled Water Sensor—Adjusts the temperature reading from the actual supply chilled  
water sensor to compensate for any error of the sensor.  
Calibrated Chilled Water Sensor—Displays the adjusted temperature value of the supply chilled  
water sensor. This value is the actual sensor reading plus or minus the offset Supply Chilled Water  
Sensor.  
Figure 62 Sensor Calibration/Setup screen, page 3 of 3  
S623  
S624  
S625  
S626  
S627  
S628  
S629  
S630  
S631  
S632  
S633  
PASSWORD (Actual Level 0)  
Supply Refrigerant Sensor 0%  
Supply Refrigerant Sensor 100%  
????  
30.0°F  
90.0°F  
for next/previous unit  
then to change parameter  
to select parameter  
to confirm  
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Liebert iCOM Control—Firmware Version XP1.00.010.STD  
Supply Refrigerant Sensor 0%—Allows the sensor reading to be calibrated at the lowest reading of  
the sensor. This calibration changes the start point of the sensor reading.  
Supply Refrigerant Sensor 100%—Allows the sensor reading to be calibrated at the highest  
reading of the sensor. This calibration changes the end point of the sensor reading.  
Figure 63 System/Network Setup screen—System, page 1 of 2  
????  
S801  
S802  
S803  
S804  
S805  
S806  
S807  
S808  
S809  
S810  
S811  
PASSWORD (Actual Level 0)  
Number of Connected Units  
1
Configuration Safe  
Network Safe  
SW Version  
OK  
OK  
No  
No  
XP1.00.010.STD  
to select parameter  
to confirm  
for next/previous unit  
then to change parameter  
Number of Connected Units—Shows the number of displays connected. This is always 1.  
Configuration Safe—Saves or loads configuration settings for the display that have been modified  
from the factory defaults to an internal file that can be downloaded/uploaded using the Liebert iCOM  
Service Tool. Selecting Save will write the settings to the internal storage file and selecting Load will  
write the settings from the internal storage file to the application software. The internal file is  
updated automatically every 12 hours.  
Network Safe—Saves or loads network settings for the display that have been modified from the  
factory defaults to an internal file that can be downloaded/uploaded using the Liebert iCOM Service  
Tool. Selecting Save will write the settings to the internal storage file and selecting Load will write  
the settings from the internal storage file to the application software.  
SW Version—Contains the application software version loaded onto the Liebert iCOM display.  
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Liebert iCOM Control—Firmware Version XP1.00.010.STD  
Figure 64 System/Network Setup screen—System, page 2 of 2  
S812  
S813  
S814  
S815  
S816  
S817  
S818  
S819  
S820  
S821  
S822  
PASSWORD (Actual Level 0)  
IP Address  
Netmask  
Gateway  
MAC  
U2U Protocol  
U2U Address  
U2U Group  
????  
192.168.254.003  
255.255.255.000  
0.000.000.000  
00:00:68:19:40:C7  
GBP  
33  
1
Bootloader Variables  
OK  
No  
IP Address—Contains the network address of the display. This address must be unique on the  
network. The factory default is 192.168.254.003.  
Netmask—Defines which part of the IP address is used for the network. The factory default is  
255.255.255.000.  
Gateway—A network point that acts as an entrance to another network. The factory default is  
0.000.000.000.  
MAC—A unique hardware identifier for the Ethernet device. The following parameters (U2U  
Protocol, U2U Address and U2U Group) are for displaying other networked Liebert XDPs. The  
Liebert XDP does not perform Teamwork Operations.  
U2U Protocol—This is always set to GBP.  
U2U Address—A unique identifier for each display on the network. Display addresses range from 33  
to 64. Each display on the U2U network must have a different U2U address. Not currently used.  
U2U Group—Used to create zones or groups within a U2U network. Once a group number is  
selected, the display will see only other devices with the same group number. The group number can  
be changed to view other devices in different groups. Not currently used.  
Bootloader Variables—Indicates the bootloader has changed since it was last loaded. This  
parameter should only be activated by an authorized service person.  
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Liebert iCOM Control—Firmware Version XP1.00.010.STD  
Figure 65 System/Network Setup screen—Unit, page 1 of 2  
UNIT 01  
????  
S823  
S824  
S825  
S826  
S827  
S828  
S829  
S830  
S831  
S832  
S833  
PASSWORD (Actual Level 0)  
Monitoring Address  
3
Unit Name  
UNIT  
Configuration Safe  
Network Safe  
SW Verson  
OK  
OK  
No  
No  
XP1.00.008.STD  
to select parameter  
to confirm  
for next/previous unit  
then to change parameter  
®
Monitoring Address—Sets the address used by the Liebert IntelliSlot cards. This is set to 3 at the  
factory and should not be changed.  
Unit Name—Identifies the unit from the local or remote display. This label will show at the top right  
of every screen that has monitoring or configuration of that unit  
Configuration Safe—Saves or loads configuration settings for the control board that have been  
modified from the factory defaults to an internal file that can be downloaded / uploaded using the  
Liebert iCOM Service Tool. Selecting “Save” will write the settings to the internal storage file and  
selecting “Load” will write the settings from the internal storage file to the application software. The  
internal file is updated every 12 hours automatically.  
Network Safe—Saves or loads network settings for the control board that have been modified from  
the factory defaults to an internal file that can be downloaded / uploaded using the Liebert iCOM  
Service Tool. Selecting “Save” will write the settings to the internal storage file and selecting “Load”  
will write the settings from the internal storage file to the application software.  
SW Version—Contains the application software version loaded onto the Liebert iCOM.  
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Liebert iCOM Control—Firmware Version XP1.00.010.STD  
Figure 66 System/Network Setup screen—Unit, page 2 of 2  
UNIT 01  
S834  
S835  
S836  
S837  
S838  
S839  
S840  
S841  
S842  
S843  
S844  
PASSWORD (Actual Level 0)  
Monitoring Protocol  
IP Address  
Netmask  
Gateway  
????  
Velocity V4  
192.168.254.003  
255.255.255.000  
0.000.000.000  
00:00:68:19:9B:42  
GBP  
MAC  
U2U Protocol  
U2U Address  
U2U Group  
Bootloader Variables  
Static RAM  
1
1
OK  
OK  
No  
No  
Monitoring Protocol—Selects the monitoring protocol. Velocity V4 is the factory default which will  
provide communications to the Liebert IntelliSlot housing. IGMnet will activate the 77/78 terminals  
for communication to the Liebert SiteLink(-E). Liebert Hironet is only used on Liebert HPM units.  
IP Address—Contains the network address of the display. This address must be unique to every  
other device on the network. The factory default is 192.168.254.003.  
Netmask—Defines which part of the IP address is used for the network. The factory default is  
255.255.255.000.  
Gateway—A gateway is a network point that acts as an entrance to another network. The factory  
default is 0.000.000.000.  
MAC—The MAC address is a unique hardware identifier of the Ethernet device.  
The following parameters (U2U Protocol, U2U Address and U2U Group) are for displaying other  
Liebert XDPs that are networked. The Liebert XDP does not perform Teamwork Operations.  
U2U Protocol—Always set to GBP.  
U2U Address—Unique identifier for each display on the network. Display addresses range from 1 to  
32. Each display on the U2U network must have a different U2U address. Not currently used.  
U2U Group—Creates zones or groups within a U2U network. Once a group number is selected the  
display will only see other devices with the same group number. The group number can be changed to  
view other devices in different groups. Not currently used.  
Bootloader Variables—Indicates if there has been a change to the boot loader since it was last  
loaded. This parameter should only be activated by authorized service personnel.  
Static RAM—Allows service personnel to clear and reboot the RAM of the control board. Only  
Emerson service personnel should perform this function.  
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Liebert iCOM Control—Firmware Version XP1.00.010.STD  
Figure 67 Options Setup screen, page 1 of 2  
UNIT 01  
S401  
S402  
S403  
S404  
S405  
S406  
S407  
S408  
S409  
S410  
S411  
PASSWORD (Actual Level 0)  
Autorestart Enabled  
????  
Yes  
5sec  
1sec  
Single Unit Auto Restart  
Unit Start Sequence Delay  
Control Delay Time  
Pump Start Time Delay  
Pump Wait Time Delay  
Pump Off Time Delay  
1sec  
10sec  
10sec  
5sec  
Pump Short Cycle Delay  
30min  
to select parameter  
to confirm  
for next/previous unit  
then to change parameter  
Autorestart Enabled—Restarts the unit after a power cycle when set to Yes. When this parameter  
is set to No, the unit will not restart after a power cycle.  
Single Unit Auto Restart—Sets a time delay for the unit to restart when the Auto Restart Enabled  
is set to Yes. The delay begins once the boot process has completed. This parameter allows units to be  
staggered On to reduce the amount of simultaneous power consumption after a loss of power.  
Unit Start Sequence Delay—Not currently used.  
Control Delay Time—Not currently used.  
Pump Start Time Delay—Sets a time delay to ensure that refrigerant begins flowing when the  
pump starts. If refrigerant does not begin flowing before the user-set delay expires, the pump will be  
turned Off.  
Pump Wait Time Delay—Sets the pump wait time delay to prevent the pump from continuing to  
run when refrigerant is not flowing. If a pump is running normally and refrigerant flow is lost, the  
pump will stay On for the specified time trying to re-establish refrigerant flow. If refrigerant flow  
resumes during the specified interval, the pump will continue operating. If the wait time expires and  
refrigerant flow has not resumed, the pump will shut down.  
Pump Off Time Delay—Sets the length of time a pump will remain off when refrigerant flow is  
interrupted or stops. After the time delay has expired, the control will try to restart the pump.  
Lead Pump—Sets which pump is the active pump. It can be set to PUMP 1 or PUMP 2. The control  
will operate the respective pump unless a loss of flow condition occurs. On a LOSS OF FLOW  
condition, the control will switch to the standby pump after the LOSS OF FLOW alarm time delay  
has elapsed and the LOSS OF FLOW alarm has been annunciated. The default is PUMP 1.  
Pump Short Cycle Delay—Sets the time to lock Off the unit if it is unable to establish refrigerant  
flow within this set amount of time.  
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Liebert iCOM Control—Firmware Version XP1.00.010.STD  
Figure 68 Options Setup screen, page 2 of 2  
UNIT 01  
S412  
S413  
S414  
S415  
S416  
S417  
S418  
S419  
S420  
S421  
S422  
PASSWORD (Actual Level 0)  
Valve Start Open  
Valve Start TD  
3P Actuator Runtime  
3P Actuator Direction  
Unit Off Valve % Open  
????  
30%  
90sec  
70sec  
Direct  
30%  
for next/previous unit  
then to change parameter  
to select parameter  
to confirm  
Valve Start Open—Sets position of the valve when the unit starts.  
Valve Start TD—Sets a time interval for the unit to complete startup and enter into normal  
operation.  
3P Actuator Runtime—If Valve Control is selected for “Time” then this parameter sets the travel  
time of the valve to determine the full open and closed position of the valve. This parameter is set at  
the factory, based on the valve manufacturer’s specifications.  
3P Actuator Direction—Sets if the valve is a “Direct” or “Reverse” acting valve.  
Unit Off Valve % Open—Sets the valve position when the unit is Off.  
Figure 69 Module Setup screen, page 1 of 20  
S901  
S902  
S903  
S904  
S905  
S906  
S907  
S908  
S909  
S910  
S911  
S912  
S913  
PASSWORD (Actual Level 0)  
NODE ID 81  
CONDENSATION DETECTED  
LOCAL MODULE SHUTDOWN  
SENSOR FAILURE  
????  
DELAY EN-DIS TYPE  
15 ENABLE  
15 ENABLE ALM  
30 ENABLE ALM  
30 ENABLE ALM  
OFF  
FAN FAILURE  
FAN CONTROL MODE  
DISABLE LOCAL BUTTON  
FLASH LED AT MODULE  
SET MODULE LABEL  
SUPPLY AIR TEMP LIMITS  
RETURN AIR TEMP LIMITS  
FIRMWARE VERSION  
NO  
NO  
A Z81  
High 80 Low 50 °F  
High 120 Low 60 °F  
XXX.XX.XXX  
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Liebert iCOM Control—Firmware Version XP1.00.010.STD  
This screen selects the operation of an active alarm for each smart module. Each event can be enabled  
or disabled and can be set to operate as an alarm, a warning or a message. The delay is the time the  
control waits before reporting the event.  
Alarm: Annunciates the buzzer, triggers a monitoring event, triggers the alarm relay and flashes  
the red LED on the display.  
Warning: Annunciates the buzzer, triggers a monitoring event, shows the event in the event  
viewer/front display and flashes the red LED on the display.  
Message: Shows the event in the event viewer and on the front display.  
Fan Control Type—Sets the fan control mode. Values can be OFF, ON, ON ALL and TEMP CNTL.  
Disable Local Button—Disables the push button on the front of the smart module. To disable the  
push button, set the parameter to YES. To re-enable the push button, set the parameter to NO.  
Flash LED at Module—Flashes the LED on the smart module when set to Yes.  
Set Module Label—A four-character label consisting of two letters and two numerals. This is the  
standard nomenclature for Data Center Grid assignment of racks. Additionally, the module’s location  
can be denoted with 10 characters, either letters or non-alphanumeric characters from a built-in list.  
Either or both labels can be used and are entered using this screen.  
Supply Air Temp Limit—Sets the high and low supply air temperature to from the module. An  
alarm will occur if the temperature falls outside the limits.  
Return Air Temp Limit—Sets the high and low return air temperature to from the module. An  
alarm will occur if the temperature falls outside the limits.  
Firmware Version—Displays the firmware version installed on the smart module.  
Figure 70 Module Setup screen, page 1 of 20  
S901  
S902  
S903  
S904  
S905  
S906  
S907  
S908  
S909  
S910  
S911  
S912  
S913  
PASSWORD (Actual Level 0)  
NODE ID 81  
CONDENSATION DETECTED  
LOCAL MODULE SHUTDOWN  
SENSOR FAILURE  
????  
DELAY EN-DIS TYPE  
15 ENABLE  
15 ENABLE ALM  
30 ENABLE ALM  
30 ENABLE ALM  
OFF  
FAN FAILURE  
FAN CONTROL MODE  
DISABLE LOCAL BUTTON  
FLASH LED AT MODULE  
SET MODULE LABEL  
SUPPLY AIR TEMP LIMITS  
RETURN AIR TEMP LIMITS  
FIRMWARE VERSION  
NO  
NO  
A Z81  
High 80 Low 50 °F  
High 120 Low 60 °F  
XXX.XX.XXX  
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Start the Liebert XDP with Liebert iCOM  
5.0 START THE LIEBERT XDP WITH LIEBERT ICOM  
5.1  
Checklist for Liebert XDP Startup  
CAUTION  
!
Risk of piping and component rupture. May cause equipment damage or injury.  
Closing service valves may isolate liquid refrigerant, causing high pressure and rupture of  
piping. Do not close valves without following recommended procedures for repair,  
maintenance and replacement of components. Install pressure relief valves in field piping  
that may become isolated by service valves.  
NOTE  
The Liebert XDP160 requires a minimum load of 48kW (163,800BTU/H) before the system can  
be commissioned. This load can be supplied by actual user load in racks, by independent load  
banks or by the “Load Bank Testing” service of Emerson Network Power Liebert Services. To  
achieve the minimum load requirements, the capacity of all connected modules must total at  
least 48kW (163,800BTU/H). See Table 1.  
NOTE  
Before any action that could cause a disturbance in the Liebert XD system’s cooling function is  
begun, the facility manager MUST be informed. In addition, after the action is taken and the  
work is finished, the facility manager MUST be informed  
1. Verify that bypass flow controllers were installed (if applicable), see Table 5.  
2. Verify that the minimum load level of 48kW (163,800BTU/H) is present.  
3. Check all isolation ball valves in the Liebert XDP and Liebert XD cooling module and verify that  
all are open.  
4. Check rotation of the Liebert XDP’s pumps.  
On 460V units only—Hold the rotation device provided against the pump housing at the  
inspection screw prior to energizing the pumps. Counterclockwise indicates proper rotation;  
clockwise indicates incorrect rotation.  
On 208V and 400V units only, view the LED indicator on the pump. Green indicates proper  
rotation; Green and Red indicate incorrect rotation.  
Table 13 Liebert XDP pump light indicator—208V and 400V units  
Indicator Lights  
Description  
Green  
Red  
The electricity supply has been switched Off or the pump has  
been cut out by the thermal switch.  
Off  
Off  
On  
Off  
The electricity supply has been switched On. Normal operation.  
The electricity supply has been switched On. The direction of  
rotation is wrong.  
On  
On  
5. Check rotation of fans on Liebert XD cooling module units.  
6. Verify that air is being discharged into the cold aisle.  
7. Confirm that the total calculated refrigerant R-134a amount has been properly charged into the  
8. Confirm that the remote temperature/humidity sensors provided have been installed in optimal  
The Liebert XDP system is now ready to be turned ON.  
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Start the Liebert XDP with Liebert iCOM  
5.2  
Starting the Liebert XDP with Liebert iCOM Controller  
The Liebert XDP is started, stopped and controlled through the Liebert iCOM controller. Figure 24  
shows the Liebert iCOM keypad.  
1. Turn the Liebert XDP On with the user interface (I/O button). The factory-setting defaults  
Liebert XD module fans to On. When the Liebert XDP is turned On, the Liebert XD modules’ fans  
will turn On. Allow the system to attempt to start for at least 2 minutes.  
If the Liebert XDP pump cannot maintain flow and continues to switch over due to starting  
difficulties, refer to 7.0 - Troubleshooting. After remedying the problem, proceed to Step 2.  
2. If constant flow is established, wait until the Liebert XDP has been operating for 10-15 minutes,  
then verify that the refrigerant level in the receiver sight glass is between the second and third  
level (see Figure 71). Add or remove charge, if necessary.  
3. Check pressure differential functionality:  
The Liebert XDP system should be On. If it is Off:  
a. Turn the Liebert XDP On via user interface (I/O button). The factory-setting defaults Liebert  
XD module fans to On. When the Liebert XDP is turned On, the Liebert XD modules’ fans will  
turn On.  
If no “Loss of Flow” alarm is present—This suggests that there is flow. Test the pressure  
differential by closing the ball valve on either the suction line or discharge line to stop the  
flow.  
This should prompt an alarm for “loss of flow on P1.” This alarm confirms that the switch has  
opened on low pressure (below 6 psi; 41kPa; 0.41 bars).  
If a “Loss of Flow” alarm is present—This suggests that there is no flow. Verify that this  
is correctly annunciated by looking at the sight glass in the receiver. If a true no-flow condi-  
tion exists, the level will not move.  
However, if there is flow, but the differential reading is faulty, the level will slowly  
drop, indicating flow, while the loss of flow alarm is annunciated.  
Check the pressure differential physically by making sure that the electrical connections are  
properly connected. Then check the pressure differential electrically by making sure that the  
unit has 24VAC across it.  
Figure 71 System R-134a liquid level at 160kW load  
Operation above sight glass #3 can  
make the system operate erratically  
and reduce cooling capacity. Reduce  
charge to recommended leve.l  
Recommended operating level  
Acceptable operating level  
For lightly loaded systems,  
the recommended operating  
level is sight glass #2.  
Operation below sight glass #1 may  
cause loss of flow or cooling. Add  
charge to reach recommended leve.l  
Sight Glasses 1, 2 & 3  
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Alarm Descriptions and Solutions  
6.0 ALARM DESCRIPTIONS AND SOLUTIONS  
6.1  
Alarm Descriptions  
NOTE  
Alarms must be acknowledged before they can be reset. To acknowledge or silence an alarm,  
press the ALARM key one time. This will silence the alarm; the red LED will remain  
illuminated until the alarm is reset.  
CALL SERVICE—Activated when Customer Input 1 is configured for “Call Service” and 24VAC is  
applied to the input. This alarm is reset when the 24VAC is removed.  
CONDENSATION DETECTED (optional)—Activated when water is detected at a cooling module.  
A 24VAC signal is applied to the condensation input on the control board using a pair of twisted wires  
or the alarm is sent via CANbus communication. When this alarm is active, the control will raise its  
refrigerant control point by 4°F (2.2°C). This alarm will reset when the alarms is acknowledged and  
the signal stops being sent from CANbus or condensation input. The alarm can also be reset by  
cycling the power. The main power must be cycled to remove the 4°F (2.2°C) offset.  
CONTROL VALVE FAILURE—Activated when the chilled water control valve has been  
commanded to open or close by the control and no change is detected by the valve position signal. The  
alarm is reset when the main power is cycled.  
CUSTOMER INPUT 1—Activated when a 24VAC signal is applied to the customer alarm input on  
the control board. This alarm will reset when the 24VAC signal stops being sent from the customer  
alarm input. WATER UNDER FLOOR, SMOKE DETECTED, CALL SERVICE, and COMP LOCK  
PD are possible designations for this alarm; they are set with the Unit Code.  
FAN FAILURE (optional)—Activated when a 24VAC signal is applied to the fan failure input on  
the control board using a twisted pair of wires or the alarm is sent via CANbus communication. This  
alarm will reset when the alarms is acknowledged and the signal stops being sent from CANbus or  
fan failure input. The alarm can also be reset by cycling the power.  
HIGH CW TEMP—Activated when the Supply CW sensor reads the chilled water temperature  
above the user-specified alarm setpoint. This alarm will reset when the reading from the refrigerant  
temperature sensor drops 5°F (2.8°C) below the user-specified setpoint and the alarm has been  
acknowledged.  
HIGH DEW POINT—Activates when the calculated dew point at either Sensor A or B exceeds the  
user-specified alarm setpoint. The alarm will reset when the calculated room dew point from both  
Sensor A and Sensor B is 2°F (1.1°C) below the setpoint and the alarm has been acknowledged.  
HIGH REFRIGERANT TEMP—Activated when the refrigerant temperature sensor reads the  
refrigerant temperature above the user-specified alarm setpoint. This alarm will reset when the  
reading from the refrigerant temperature sensor drops 2°F (1.1°C) below the user-specified setpoint  
and the alarm has been acknowledged.  
HIGH TEMP SENSOR A—Activated when the reading from Sensor A is above the user-specified  
alarm setpoint. The alarm will reset when the reading from Sensor A drops 2°F (1.1°C) below the  
setpoint and the alarm has been acknowledged.  
HIGH TEMP SENSOR B—Activated when the reading from Sensor A is above the user-specified  
alarm setpoint. The alarm will reset when the reading from Sensor A drops 2°F (1.1°C) below the  
setpoint and the alarm has been acknowledged.  
LOSS OF FLOW PUMP 1—Activated when Pump 1 is commanded to run and the differential  
pressure switch does not sense differential pressure (set at 6 psi; 41kPa; 0.41 bars). After attempting  
to start Pump 1 three times, the Liebert XDP will automatically switch to the other pump to establish  
flow. This alarm will reset when flow has been established on Pump 1 and the alarm has been  
acknowledged.  
LOSS OF FLOW PUMP 2—Activated when Pump 2 is commanded to run and the differential  
pressure switch does not sense differential pressure (set at 6 psi; 41kPa; 0.41 bars). After attempting  
to start Pump 2 three times, the Liebert XDP will automatically switch to the other pump to establish  
flow. This alarm will reset when flow has been established on Pump 2 and the alarm has been  
acknowledged.  
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Alarm Descriptions and Solutions  
LOW MEMORY—Activated when the control board is low in memory resources. This alarm rests  
automatically as soon as memory consumption falls below the threshold.  
LOW REFRIGERANT TEMP—Activated when the supply refrigerant temperature sensor  
temperature reading drops below the higher of the two calculated dew points, assuming that neither  
Sensor A or Sensor B has a sensor failure alarm. This alarm will reset when the refrigerant  
temperature sensor reads the refrigerant temperature above both of the two calculated dew points  
and the alarm has been acknowledged. This alarm can lock the unit Off. If this occurs, the main  
power must be cycled, or the Low Refrig Temp Alarm Code in the Service Diagnostics menu must be  
reset to 0.  
LOW TEMP SENSOR A—Activated when the reading from Sensor A drops below the user-specified  
alarm setpoint. The alarm will reset when the reading from Sensor A rises 2°F (1.1°C) above the  
setpoint and the alarm has been acknowledged.  
LOW TEMP SENSOR B—Activated when the reading from Sensor B drops below the user-specified  
alarm setpoint. The alarm will reset when the reading from Sensor B rises 2°F (1.1°C) above the  
setpoint and the alarm has been acknowledged.  
NODEX CONDENSATION DETEC—Activated when condensation is detected on a smart module  
at CAN node ID X, where X is a value ranging from 81 to 100. This alarm resets when condensate is  
no longer detected. The main power must be cycled off to remove the 4°F (2.2°C) offset value.  
NODEX FAN FAILURE—Activated when a fan failure occurs on a smart module at CAN node ID X,  
where X is a value ranging from 81 to 100. The alarm will rest when the fan returns to normal  
operation.  
NODEX LOCAL SHUT DOWN—Activated when a smart module at CAN node ID X, where X is a  
value ranging from 81 to 100, has been shut down by an external signal. This alarm will reset when  
the remote shutdown input is deactivated.  
NODEX RETURNAIR TEMPLIMT—Activated when the return air temperature (entering air  
temperature to the module) exceeds the user-specified return air temperature range on a smart  
module at CAN node ID X, where X is a value ranging from 81 to 100. This alarm will reset when the  
return air temperature return to with the user-specified range.  
NODEX SENSOR FAILURE—Activated when a smart module at CAN node ID X, where X is a  
value ranging from 81 to 100, stops receiving a signal from one or more of its supply air, return air, or  
refrigerant temperature sensors. This alarm will reset when signals are detected from the module’s  
sensors.  
NODEX SUPPLYAIR TEMPLIMT—Activated when the supply air temperature (temperature of  
the air leaving the module) exceeds the user-specified supply air temperature range on a smart  
module at CAN node ID X, where X is a value ranging from 81 to 100. This alarm will reset when the  
return air temperature return to with the user-specified range.  
PUMP SHORT CYCLE—Activated when the Liebert XDP is trying to establish flow (differential  
pressure) and is unable to do so. The Liebert XDP will attempt three times to establish flow on a  
pump before trying the other pump. The control will keep cycling three times on one pump, then three  
times on the other pump until it is able to establish flow (differential pressure). If this cycling occurs  
for 30 minutes and the Liebert XDP still does not establish flow, a PUMP SHORT CYCLE alarm will  
be present. This alarm will shut down the Liebert XDP. To reset this alarm, the main power must be  
cycled.  
RAM/BATTERY FAIL—Activated when the RAM backup battery or the RAM itself has failed. This  
requires a hardware replacement.  
SENSOR A FAILURE—Activated when the controls no longer senses a signal from Sensor A. This  
alarm will reset when the signal is returned and the alarms has been acknowledged.  
SENSOR B FAILURE— Activated when the controls no longer senses a signal from Sensor B. This  
alarm will reset when the signal is returned and the alarm has been acknowledged.  
67  
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Alarm Descriptions and Solutions  
SMOKE DETECTED—Activated when the Customer Input 1 is configured for “Smoke” and 24VAC  
is applied to the input. This alarm is reset when the 24VAC is removed.  
NOTE  
This is not a room smoke detector and is not intended to replace external smoke detectors.  
SUPPLY CW SENSOR FAILURE—Activated when the control no longer senses a signal from the  
Supply CW sensor. This alarm will reset when the signal is returned.  
SUPPLY REFRIGERANT SENSOR FAILURE—Activated when the control no longer senses a  
signal from the supply refrigerant sensor. This alarm will reset when the signal is returned.  
UNIT CODE MISSING—Activated when a valid unit code has not been entered and saved. To reset,  
enter valid unit code, save and execute.  
WATER UNDER FLOOR—Activated when Customer Input 1 is configured for “Water Alarm” and  
24VAC is applied to the input. This alarm is reset when the 24VAC is removed.  
6.2  
Warning Descriptions  
LOSS OF POWER—Activated when the unit is On and operational and 24VAC power to the control  
is lost. This alarm will be emitted when power is restored to the control. The Liebert XDP will restart  
at a user-defined time delay after power is restored. Once activated, the alarm will remain activated  
for 30 minutes.  
PUMP 1 HRS EXCEED—Activated when the Pump 1 Actual Hours exceeds the user-specified limit.  
To reset, Actual Hours must be reset to 0.  
PUMP 2 HRS EXCEED—Activated when the Pump 2 Actual Hours exceeds the user-specified limit.  
To reset, Actual Hours must be reset to 0.  
6.3  
System Shutdown Causes  
Unit Is Off By Refrig Sens Fail  
The control has lost its signal from the refrigerant temperature sensor. The control has no way of  
controlling the refrigerant temperature, so the unit is shut off. Main power (disconnect switch) must be  
turned Off, then back On to clear this alarm.  
Unit Is Off By High CW Temp  
The entering chilled water temperature is too high to keep the refrigerant pump(s) running normally. If  
a HIGH CW TEMP alarm occurs and the refrigerant pump loses flow (differential pressure), then the  
Liebert XDP will go into a pre-chill mode. The Liebert XDP can attempt to start again only if the  
entering chilled water temperature drops below the HIGH CW TEMP setpoint.  
Unit Is Off By Pump Short Cycle  
The control was unable to get a pump started upon startup or after a loss of differential pressure. The  
control looks at the SHORT CYCLE time delay. If it cannot establish differential pressure within that  
amount of time, the unit is shut down. Main power (disconnect switch) must be turned Off, then back  
On to clear this alarm.  
Unit Is Off By Low Refrig Temp  
The control was unable to raise the refrigerant temperature to the calculated refrigerant temperature  
control point. The unit is shut down because if the control cannot raise the refrigerant temperature to  
the calculated refrigerant temperature control point, water may condense on the refrigerant piping and  
receiving coils. Main power (disconnect switch) must be turned Off, then back On to clear this alarm.  
68  
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Troubleshooting  
7.0 TROUBLESHOOTING  
Table 14 Troubleshooting the Liebert XDP  
Symptom  
Possible Cause  
No main power  
Check or Remedy  
Check L1, L2 and L3 for rated voltage.  
Tighten connections.  
Loose electrical connections  
Overloads tripped  
Pump Will Not Energize  
Allow pump to cool. Check amp draw.  
Check circuit breaker to pump(s).  
See Table 13.  
Tripped circuit breaker  
Incorrect phase wiring  
Check and verify that there is supply chilled water to the  
Liebert XDP.  
No chilled water  
Isolation valve(s) on pump suction  
and/or discharge is closed.  
Open all isolation valves completely during normal operation.  
Pump Will Not Start or  
Run  
Check and verify that the chilled water temperature setpoint is  
at 50°F (10°C) or lower and that there is flow on the chilled  
water side.  
Supply chilled water is too high  
Check Liebert XD cooling modules to make sure that they are  
On prior to starting the Liebert XDP.  
Liebert XD cooling modules are Off  
Check alarm(s) history on Liebert XDP. The Liebert XDP was  
operating below the dew point for a significant amount of time.  
Check humidity in conditioned space, lower humidity if  
necessary to allow Liebert XDP to operate at a lower  
temperature. (Disconnect must be switched to Off then back  
On to allow Liebert XDP to reset itself).  
Low Refrigerant Temperature  
(high dew point)  
Check both differential pressure settings. If not within 6 psi, ±1  
psi (41kPa, ±7kPa; 0.41 bars, ±0.07bars) then manually  
change accordingly.  
Pressure switch not making contact  
Not enough charge  
Wait at least 10 minutes before calibrating. Access the  
Advanced Menu>Factory Settings>Calibrate Actuator.  
Contact Liebert Services for assistance, 1-800-543-2778.  
Chilled water valve not closing  
completely.  
Pump Will Not Start  
Pump Noisy  
Check for adequate charge in system, refer to the User's  
Cavitation due to vapor in pump  
Worn motor bearings  
Replace pump  
Pump is rotating in reverse  
See Table 13.  
1. Check humidity of the room along with the location of  
remote sensors. Make sure that the sensors are not in a cold  
area where there is insufficient air flow for accurate,  
representative readings.  
2. Chilled Water temperature is too cold.  
3. Load is too light.  
Low refrigerant temperature  
When power is restored, the Liebert XDP will automatically  
restart.  
Loss of power  
Liebert XDP (Pump)  
Suddenly Stops  
Clogged filter dryer and/or impeller  
Leak in system - loss of charge  
Clean out debris  
Check the entire system for leaks with a refrigerant sniffer.  
Repair as necessary.  
Low chilled water temperature alarm  
and loss of flow Pump X alarm  
Check supply chilled water temperature.  
Check wiring.  
Call service.  
Supply refrigerant sensor failure  
alarm  
Clogged Filter Dryer  
and/or Impeller  
Debris or other contaminants in  
refrigerant  
Replace.  
Pipe Rattle  
Loose pipe connections  
Check pipe connections.  
Check linkage for adjustment and be sure that it is tight on the  
valve.  
Motor operates but valve won't open  
No 24 VAC power to motor  
No signal from control  
Check for 24 VAC between P52-1 and P52-4.  
Check 24 VAC at P22-1 (close) or P22-3 (open).  
Chilled Water Valve Not  
Working  
Unplug P22 from the board. Jumper P22-5 to P52-4 for  
grounding, then jumper P22-1 to P52-1 to drive close. Remove  
jumper to close and then jumper P22-3 to P52-1 to drive open.  
If motor fails to work, replace it.  
Motor not operating  
69  
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Troubleshooting  
Table 14 Troubleshooting the Liebert XDP (continued)  
Symptom  
Possible Cause  
Check or Remedy  
Check control panel for welded  
contactor contacts or welded  
overload contacts  
Motor Burnout  
Replace defective components.  
Shorts or loose connections  
Faulty circuit board  
Check the wiring connections of the 24 VAC circuit.  
Replace the circuit board.  
Main 24VAC Fuse Trips  
R-134a pump loop overcharged  
R-134a pump loop undercharged  
While pump is running R-134a receiver level must be within  
recommended levels (see Figure 71).  
Unstable Pump  
Operation  
remedy.  
Filter dryer clogged  
Liebert XDP is Off  
Check status of the Liebert XDP at the user interface. Turn  
system On at I/O button if system is Off.  
Check temperature and relative humidity (RH) of room. Lower  
RH setpoint if necessary to lower dew point. At normal room  
temperature of 68°F (20°C), the RH should be set to 50% or  
lower.  
High dew point  
Room Becomes  
Too Warm  
Check Liebert XD cooling modules to make sure that they are  
On before starting the Liebert XDP.  
Liebert XD cooling modules are Off  
Minimum room temperature setpoint  
is too high  
Check the setpoint in the User Setpoints menu (see  
Place the sensor on the return air side of the primary air mover  
(eg., Liebert DS). Do not install the sensor near unsealed  
doors, windows or similar areas.  
Temperature/humidity sensors  
incorrectly placed  
Clogged strainer  
Clean or replace strainer  
Reduced Chilled Water  
Flow Rate  
Fouled heat exchanger (no strainer  
installed)  
Replace heat exchanger and install 20-40 mess strainer  
Clean or replace strainer  
Clogged strainer  
Increased Refrigerant  
Temperature  
Fouled heat exchanger (no strainer  
installed)  
Replace heat exchanger and install 20-40 mess strainer  
70  
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Maintenance  
8.0 MAINTENANCE  
The Liebert XD system components require little maintenance when proper fluid levels are  
maintained and proper startup and operation procedures are followed. The following tasks should be  
performed at the intervals stated:  
1. Clean or replace chilled water strainer annually. Adjust accordingly based on purity of chilled  
water.  
2. Check sight glass level of receiver every 4-6 weeks. During normal operation, the level should be  
at or above the second sight glass.  
3. Check system for leaks every 4-6 weeks.  
8.1  
Fluorinated Greenhouse Gas Requirements  
Stationary air conditioning, refrigeration, heat pump equipment and stationary fire protection  
systems in the European Community market and operating with fluorinated greenhouse gases (f-  
gas), such as R407C, R134a, R410A, must comply with the F-Gas Regulation: (EC) No. 842/2006 (F-  
gas). The regulation prohibits, among other actions, venting fluorinated greenhouse gases to the  
atmosphere.  
The F-Gas Regulation requires operators to use all measures that are technically feasible and do not  
entail disproportionate cost to prevent leakage of these gases, to test for leakage regularly and to  
recover f-gas during equipment service and maintenance and before disposing of equipment.  
Refer to the full regulation for additional details.  
71  
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Specifications  
9.0 SPECIFICATIONS  
Table 15 Liebert XDP160 specifications  
Models  
XDP160RC--4  
XDP160RA--4  
XDP160RM--4  
140kW / 40 Tons, 50Hz  
160kW / 46 Tons, 60Hz  
Each capacity is based on 45ºF (7ºC) entering water temperature and  
140gpm (530lpm) water flow rate. Capacity is reduced when glycol mixtures  
are used in place of 100% water.  
Cooling Capacity, Nominal  
Minimum Load  
30% of nominal system capacity or 48kW (163,800BTU/H)  
Electrical Requirements  
Input  
Full Load Amps  
Dimensions, inches (mm)  
208V/3ph/60Hz  
4A  
460V/3/ph60Hz  
2.1A  
380/415V/3ph/50Hz  
2.3A  
Height – Unit only  
Height – As shipped  
Width  
78 (1981)  
83 (2108)  
38 (965)  
34 (864)  
Depth  
Weight, lb (kg)  
Unit only  
821 (372)  
Shipping weight  
Domestic: 990 (449); Export: 1067 (484)  
Installed, with refrigerant and  
chilled water  
1038 (471)  
Pipe Connections  
Refrigerant supply to Liebert XD  
cooling module  
1-1/8" OD, Cu  
Refrigerant return from Liebert XD  
cooling module  
2-1/8" OD, Cu  
2-5/8" OD, Cu  
Chilled water supply and return  
2-way, 2" nominal; 35 PSIG close-off pressure rating;  
150 PSIG maximum allowable pressure  
Control valve  
Pressure Drop – Chilled Water  
Side  
20 psig (137kPa, 1.38bar), with 140 gpm (530lpm) water flow rate,  
control valve fully open  
Temperature Rise – Chilled  
Water Side at rated flow, °F (°C)  
8.0 (4.4)  
6.9 (3.8)  
Number of Liebert XD cooling units connected, maximum (minimum)  
Liebert XDCF10  
Liebert XDH20  
Liebert XDH32  
Liebert XDV8  
16 (5)  
8 (3)  
5 (2)  
20 (6)  
16 (5)  
10 (3)  
8 (3)  
Liebert XDV10  
Liebert XDO16  
Liebert XDO20  
Liebert XDR20  
8 (3)  
Cabinet Exterior Finish  
Black, matte finish, heat-fused powder coat  
Operating Ambient  
Temperature, Maximum, °F (°C)  
86 (30)  
Agency  
Approvals  
CSA 60Hz  
CE 50Hz  
72  
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COMPLIANCE WITH EUROPEAN UNION DIRECTIVES  
Liebert Corporation  
1050 Dearborn Drive  
P.O. Box 29186  
Columbus, OH 43229  
USA  
Il Produttore dichiara che, se munito di marchio CE, il prodotto è conforme alle direttive dell'Unione  
europea:  
The Manufacturer hereby declares that this product, when bearing the CE mark, conforms to the  
European Union directives:  
Der Hersteller erklärt hiermit, dass das vorliegende Produkt, sollte es die CE-Kennzeichnung tragen, den  
folgenden Richtlinien der Europäischen Union entspricht:  
Le fabricant déclare par la présente que ce produit, portant la marque CE, est conforme aux directives  
de l'Union européenne :  
El fabricante declara por la presente que si este producto lleva el marcado CE es conforme con las  
directivas de la Unión Europea:  
O fabricante declara por este meio que este produto, quando ostenta a marca CE, está em  
conformidade com as directivas da União Europeia:  
Tillverkaren tillkännager härmed att den här produkten, när den är CE-märkt, överensstämmer med  
EU:s direktiv:  
De fabrikant verklaart hierbij dat dit product, indien het van de CE-markering is voorzien, conform de  
EU-richtlijnen is:  
Valmistaja vakuuttaa täten, että mikäli tuotteessa on CE-merkintä, se täyttää seuraavien EU-direktiivien  
vaatimukset:  
Produsenten erklærer herved at dette produktet, når det er CE-merket, er i samsvar med EU-direktiver:  
Producenten erklærer hermed, at dette produkt overholder EU's direktiver, når det bærer CE-mærket:  
Ο Κατασκευαστής δηλώνει ότι το προϊόν αυτό, το οποίο φέρει σήμανση CE, είναι σύμμορφο με τις  
οδηγίες της Ε.Ε.:  
2006/42/EC; 2004/108/EC; 2006/95/EC; 97/23/EC  
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Ensuring The High Availability  
Of Mission-Critical Data And Applications.  
Technical Support / Service  
Web Site  
Emerson Network Power, a business of Emerson (NYSE:EMR),  
is the global leader in enabling Business-Critical Continuity™  
from grid to chip for telecommunication networks, data centers,  
health care and industrial facilities. Emerson Network Power  
provides innovative solutions and expertise in areas including  
AC and DC power and precision cooling systems, embedded  
computing and power, integrated racks and enclosures,  
power switching and controls, infrastructure management,  
and connectivity. All solutions are supported globally by local  
Emerson Network Power service technicians. Liebert AC power,  
precision cooling and monitoring products and services  
from Emerson Network Power deliver Efficiency Without  
Compromiseby helping customers optimize their data center  
infrastructure to reduce costs and deliver high availability.  
Monitoring  
800-222-5877  
Outside North America: +00800 1155 4499  
Single-Phase UPS & Server Cabinets  
800-222-5877  
Outside North America: +00800 1155 4499  
Three-Phase UPS & Power Systems  
800-543-2378  
Outside North America: 614-841-6598  
Environmental Systems  
800-543-2778  
Outside the United States: 614-888-0246  
Locations  
United States  
1050 Dearborn Drive  
P.O. Box 29186  
Columbus, OH 43229  
Europe  
Via Leonardo Da Vinci 8  
Zona Industriale Tognana  
35028 Piove Di Sacco (PD) Italy  
+39 049 9719 111  
Fax: +39 049 5841 257  
While every precaution has been taken to ensure the accuracy  
and completeness of this literature, Liebert Corporation assumes no  
responsibility and disclaims all liability for damages resulting from use of  
this information or for any errors or omissions.  
© 2008 Liebert Corporation  
All rights reserved throughout the world. Specifications subject to change  
without notice.  
Asia  
29/F, The Orient Square Building  
F. Ortigas Jr. Road, Ortigas Center  
Pasig City 1605  
Philippines  
+63 2 687 6615  
® Liebert is a registered trademark of Liebert Corporation.  
All names referred to are trademarks  
Fax: +63 2 730 9572  
or registered trademarks of their respective owners.  
SL-16644_REV04_01-12  
Emerson Network Power.  
The global leader in enabling Business-Critical Continuity™  
EmersonNetworkPower.com  
AC Power  
Embedded Computing  
Outside Plant  
Racks & Integrated Cabinets  
Connectivity  
DC Power  
Embedded Power  
Power Switching & Controls  
Services  
Infrastructure Management & Monitoring  
Precision Cooling  
Surge Protection  
Emerson, Business-Critical Continuity, Emerson Network Power and the Emerson Network Power logo are trademarks of Emerson Electric Co. or one of its affiliated companies.  
©2008 Emerson Electric Co.  
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