Liebert Network Card XDV User Manual

Precision Cooling  
For Business-Critical Continuity™  
Liebert XDV™  
User Manual–50 & 60 Hz  
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TABLE OF CONTENTS  
6.7  
i
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6.9  
Connecting a Liebert XDV with Liebert Flex Pipe to an Operational  
Liebert XD System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26  
ii  
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FIGURES  
Figure 1  
TABLES  
Table 1  
iii  
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iv  
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Liebert XDV Component Locations and Model Number Nomenclature  
1.0 LIEBERT XDV COMPONENT LOCATIONS AND MODEL NUMBER NOMENCLATURE  
Figure 1  
Liebert XDV component locations  
2
3
Rear of Liebert XDV  
13  
15  
14  
7
Top of Liebert XDV  
1
5
9
16  
Front of Liebert XDV  
4
Bottom View of Liebert XDV  
6
11  
XDV Components and Nomenclature  
1. Removable Fan Tray  
2. Return Line  
3. Supply Line  
4. Fan Switches  
5. Removable Blocker Plates  
6. Removable Rear Inlet Grille  
7. Mounting Clips for Cabinets  
8. Primary Power Inlet (CE-approved units have  
non-detachable power cord)  
9. Primary Circuit Breaker  
10. Secondary Power Inlet (CE-approved units have  
non-detachable power cord)  
11. Secondary Circuit Breaker  
12. Connections for Condensate Detection Option  
13. Serial Tag  
12  
10  
8
Rear of Liebert XDV  
14. Heat Exchanger  
15. Schrader Valve  
16. Fans  
Figure 2  
Liebert XDV model number nomenclature  
Example: XDV10BK– –*  
XD  
V
10  
B
K
*
Liebert X-treme  
heat density  
system  
K = 120V-1ph-60Hz  
S= 230V, 1ph-50Hz  
T=208-240V-1ph-60Hz,  
220-240-1ph-50Hz  
— = Domestic  
Packaging  
E = Export  
Packaging  
Model  
size  
Vertical top  
cooler  
B = Base unit  
D = Unit with  
condensate  
detection  
— = Hard Piped  
P = Pre-charged (one-shot) Coupling)  
R = Removable Coupling  
Revision  
level  
1
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Installation  
2.0 INSTALLATION  
2.1  
References  
This document must be used together with site specific documentation and documentation for other  
parts of the system.  
2.2  
Pre-Installation Checks  
• Verify that the Liebert XDV voltage matches the available utility power. The serial tag with this  
information is on the top of the unit, near the rear.  
• Check the received materials to be sure all required assemblies and parts have been received. If  
you discover any external damage, report it to the shipping company and your local Liebert repre-  
sentative.  
2.3  
2.4  
Parts Included With Liebert XDV  
• Installation manual (this document)  
• Liebert XDV module  
• Parts bag including  
• IEC 10 ft. (3m) power cords, 2 (60Hz only; power cords for 50Hz are attached)  
• 1/4 - 20 full thread 1" bolts, 4  
• 1/4 inch locking hex nuts, 2  
• mounting clips, 2  
Installation Considerations  
Each Liebert XDV module is to be securely mounted either on the top of a computer cabinet or rack or  
above the heat-producing equipment. Mounting the Liebert XDV above the rack requires Liebert’s  
optional mounting kit.  
The units are designed to be mounted without modification on Liebert Foundation™ cabinets. Mount-  
ing clips included with the Liebert XDV permit installation on other manufacturers’ cabinets and  
racks. The clips also can be used with the Foundation for stronger attachment.  
Determine whether the Liebert XDV includes the condensate detection option (factory-installed). This  
option will require separate low voltage connections to a monitoring unit.  
To minimize the possibility of condensation, insulate all piping between the Liebert XDV and the Lie-  
bert XDP or Liebert XDC.  
Table 1  
Application limits  
Range of Return Air  
Conditions to Unit  
Input Voltage  
Minimum  
Maximum  
Dry Bulb Temp.  
Relative Humidity  
20% to 80%  
60° to 100°F  
(16° to 38°C)  
-10%  
+10%  
2.4.1 Room Preparation  
The room should be well insulated and must have a sealed vapor barrier. The vapor barrier in the  
ceiling and walls can be a polyethylene film. Paint on concrete walls and floors should contain either  
rubber or plastic.  
NOTE  
The vapor barrier is the single most important requirement for maintaining  
environmental control in the conditioned space.  
Outside or fresh air should be kept to a minimum when temperature and humidity must be tightly  
controlled. Outside air adds to the cooling, heating, dehumidifying and humidifying loads of the site.  
Doors should be properly sealed to minimize leaks and should not contain ventilation grilles.  
2
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General product information  
3.0 GENERAL PRODUCT INFORMATION  
3.1 Product/System Description  
The Liebert XDV cooling system is designed to be attached to the top of a computer cabinet or rack  
containing heat dissipating equipment. Two fans draw hot air exhausted from the equipment or from  
the hot aisle, pass it through a cooling coil and discharge cool air back down to the cold aisle, where  
the equipment's air intake is located. The Liebert XDV comes from the factory ready to draw heated  
air through a perforated grille on the back of the unit. The Liebert XDV is easily modified to draw hot  
air through the bottom of the unit, should that cooling method be better suited to your application.  
The complete system consists of Liebert XDV modules, Liebert XDP or Liebert XDC coolant distribu-  
tion units, power and signal cabling and interconnecting piping, see Figure 3 below.  
A condensate detection option gives notification if any condensation occurs in the Liebert XDV.  
Figure 3  
Liebert XDV hydraulic diagram  
Liebert XDC  
or  
Liebert XDP  
Liebert XD  
Cooling Module *  
Supply  
Lines  
Pumped  
Refrigerant  
Return  
Lines  
Liebert XD  
Cooling Module *  
Liebert XDC  
or  
Liebert XDP  
Liebert XD  
Cooling Module *  
Pumped  
Refrigerant  
Liebert XD  
Cooling Module *  
* Liebert XDCF,  
XDH, XDO or XDV  
3.2  
Checking and Unpacking  
When the Liebert XDV is delivered, inspect all items for either visible or concealed damage. Damage  
should be immediately reported to the carrier and a damage claim filed with a copy sent to Liebert or  
to your sales representative. If you later find any concealed damage, report it to the shipping company  
and your local Liebert representative.  
Check to be sure all required assemblies and parts have been received.  
The Liebert XDV is shipped in a protective carton and secured to a pallet (see Figures 5 and 6). Do  
not remove these protective items from the Liebert XDV before it is at the installation location. When  
unpacking and handling the Liebert XDV, exercise extra care to prevent damage.  
3
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General product information  
3.3  
Equipment Inspection  
Upon arrival of the unit, and before unpacking, verify that the labeled equipment matches the bill of  
lading. Carefully inspect all items for either visible or concealed damage. Damage should be immedi-  
ately reported to the carrier and a damage claim filed with a copy sent to Liebert Corporation or to  
your sales representative.  
CAUTION  
!
Risk of sudden refrigerant discharge. Can cause loss of charge and minor injury.  
If the optional pre-charged option is chosen, the Liebert XDV unit is shipped with a full  
charge of R-134a refrigerant under pressure. Do not remove the pipe caps or plugs before the  
unit is ready for connection to Liebert XD Piping.  
Supply and return fittings on the pre-charged Liebert XDV units are one-shot connections. Do  
not disconnect one-shot connections after they have been connected. Disconnection will  
release pressurized R-134a refrigerant from the Liebert XDV.  
3.3.1 Recyclable Packaging  
All material used to package this unit is recyclable. Please save for future use or  
dispose of the material appropriately.  
R
WARNING  
!
Risk of improper handling. Can cause equipment damage, injury or death.  
Read all of the following instructions before attempting to move, lift, remove packaging from,  
or preparing unit for installation.  
CAUTION  
!
Risk of sharp edges, splinters and exposed fasteners can cause injury.  
Only properly trained personnel wearing appropriate safety headgear, gloves, shoes and  
glasses should attempt to move, lift, remove packaging from, or prepare unit for installation.  
NOTICE  
Risk of unit damage if improperly stored. Keep the unit indoors and protected from dampness,  
freezing temperatures and contact damage.  
NOTICE  
Risk of damage from forklift. Improper handling with the forklift can cause exterior and/or  
underside damage.  
Keep tines of the forklift level and at a height suitable to fit below the skid.  
Figure 4  
Recommended unit handling equipment  
Pallet Jack  
Forklift  
4
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General product information  
3.3.2 Unit Handling  
If possible, transport the unit using a forklift or pallet jack.  
• If using a forklift or pallet jack, ensure that the fork tine length is suitable to safely move the  
packaged unit.  
• Liebert Corporation recommends that the unit remain in the protective packaging until located at  
the installation site.  
• When handling and unpacking the unit, exercise great care to prevent damage.  
• Do not use unit piping to lift or move the Liebert XDV  
3.3.3 Unpacking the Unit  
Domestic Packaging  
1. Remove outer packaging when ready to install the Liebert XDV.  
2. Keep the Liebert XDV covered by the unit bag until removal from pallet.  
Figure 5  
Removing domestic shipping package  
Plastic bag used for shipping  
not shown for clarity.  
Step 1  
Step 2  
Step 3  
Do not use unit piping to lift or  
move the Liebert XDV  
Step 4  
Step 5  
5
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General product information  
Export Packaging  
1. Unbend all metal tabs as indicated in Step 1 in Figure 6.  
2. Remove outer packaging when ready to install the Liebert XDV.  
3. Keep the Liebert XDV covered by the unit bag until removal from pallet.  
4. Do not use unit piping to lift or move the Liebert XDV.  
Figure 6  
Removing export shipping package  
Plastic bag used for shipping  
not shown for clarity.  
Step 2  
Step 1  
Do not use unit piping to lift  
or move the Liebert XDV  
Step 3  
Step 4  
6
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General product information  
Removing the Liebert XDV from the Pallet  
1. Unfold the unit bag to expose the Liebert XDV.  
2. Verify the nameplate information found on the Liebert XDV against the bill of lading. If the  
information does not match the product specified, contact your local Liebert sales representative.  
3. At least two properly trained personnel may lift the Liebert XDV off the pallet and onto a flat  
surface.  
4. To protect the Liebert XDV’s paint, lay non-abrasive material, longer than the unit, on the flat  
surface before moving the Liebert XDV.  
Figure 7  
Removing Liebert XDV from shipping pallet  
Removing the Liebert XDV  
from its shipping pallet  
requires two people.  
7
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Mechanical Considerations  
4.0 MECHANICAL CONSIDERATIONS  
4.1 Determining Placement in the Conditioned Space  
Liebert XDVs should be placed above or on top of the cabinets that generate the greatest amount of  
heat. If heat loads are dispersed evenly throughout the room, the Liebert XDV modules may be  
spread out accordingly.  
The Liebert XDV is engineered to fit atop computer enclosure cabinets. Figure 8, below, illustrates  
the unit’s dimensions and the location of pipes, the fan tray and power connections. (An optional kit is  
available to permit suspending the Liebert XDV from either Unistruts or from the overhead struc-  
Figure 8  
Liebert XDV dimensions  
W
DT  
PH  
DF  
DB  
H
Liebert XDV With  
Pre-charged Option  
DPN000770  
Page 2, Rev. 6  
(all dimensions except piping  
height are the same as for the  
hard-piped setup, see Table 2)  
Liebert XDV With Hard-piped Arrangement  
Table 2  
Dimensional data  
Illustration  
Key  
Measurement,  
in (mm)  
Dimension  
Depth Top  
Depth Bottom  
Width  
DT  
DB  
W
39-1/2 (1003)  
29-5/8 (752)  
22-7/8 (581)  
14 (356)  
H
Height  
Piping Height,  
hard-piped  
18-5/8 (473)  
PH  
DF  
Piping Height,  
one-shot option  
19-5/8 (498)  
9-7/8 (250)  
Depth Front  
8
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Mechanical Considerations  
4.2  
Changing the Air Intake Location  
The Liebert XDV comes from the factory with the air intake on the rear of the unit. If required for  
your application, this can be changed so that the Liebert XDV takes in heated air from the bottom.  
This is done more easily and safely before the unit is mounted on a computer cabinet.  
WARNING  
!
Risk of high-speed moving parts. Can cause death, injury and equipment damage.  
Before opening the Liebert XDV, shut the unit off and disconnect all electrical power. Wait for  
the Liebert XDV’s fans to stop rotating before beginning to open the unit.  
To change the air intake:  
1. Loosen the six screws holding the grille on the rear of the Liebert XDV (see Figure 9).  
2. Remove the grille and lay it aside for use later.  
3. Remove the channel bracket holding the two solid metal plates to the bottom of the Liebert XDV.  
It is secured with two screws, one on either end.  
4. Lift the two solid plates out of the bottom of the Liebert XDV.  
5. Optional—replace the channel bracket, securing it with the two screws removed in Step 3.  
6. Lay the perforated grille down with the screws pointing up  
7. Lay the two solid plates on the grille with the screws through the matching holes of the plates.  
8. Hold the grille and plates together and attach the assembly to the rear of the Liebert XDV with  
the screws.  
Figure 9  
Changing the Liebert XDV’s air intake location  
Solid  
plates  
Grille  
Remove rear inlet grille, taking care not to loosen  
the screws. Remove screws and channel bracket  
from base of unit, remove solid plates. Using the  
screws from the rear grille, reinstall the solid  
plates on the exterior rear of the unit.  
Place rear grille in a secure area for future use.  
9
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Mounting the Liebert XDV  
5.0 MOUNTING THE LIEBERT XDV  
The Liebert XDV module must be securely attached to the top of the computer cabinet or, alterna-  
tively, suspended above the cabinet. For mounting atop the computer cabinet, see 5.1 - Mounting  
the Liebert XDV on Top of the Cabinet; to hang the Liebert XDV above the computer cabinet,  
refer to 5.2 - Suspended Mounting Method. Be sure to follow all applicable codes.  
WARNING  
!
Risk of top-heavy cabinet falling. Can cause equipment damage, injury or death.  
A lightly loaded cabinet may become top-heavy after a Liebert XDV is mounted on it, causing  
the cabinet to tip over, possibly resulting in serious injury.  
Before beginning to place the Liebert XDV on the cabinet, ascertain whether the cabinet or rack  
requires additional stabilization, and secure the cabinet to the floor if necessary to prevent tip-  
over.  
Always use at least two persons to mount the Liebert XDV on top of a cabinet.  
5.1  
Mounting the Liebert XDV on Top of the Cabinet  
The Liebert XDV may be installed on a computer cabinet by securing it with either the two included  
bolts, the two included clips or both the bolts and clips.  
The Liebert XDV has mounting holes below the fans that match holes in the Liebert Foundation com-  
puter system cabinet. Other cabinets may require that holes be drilled to accommodate the bolts or  
the clips.  
5.1.1 Bolting Liebert XDV to Top of Cabinet  
To mount the Liebert XDV:  
1. With at least one additional person, lift the Liebert XDV and set it down on top of the cabinet. The  
front edge of the Liebert XDV should be even with the front edge of the cabinet. See Figure 10.  
Figure 10 Positioning the Liebert XDV  
X X  
CORRECT  
Liebert XDV  
is flush with  
front edge  
of rack  
INCORRECT  
Liebert XDV  
is too  
INCORRECT  
Liebert XDV  
hangs over  
front edge  
of rack  
far from  
front edge  
of rack  
Computer  
cabinet or  
rack  
Computer  
cabinet or  
rack  
Computer  
cabinet or  
rack  
2. If your cabinet has mounting holes matching those on the Liebert XDV, align the Liebert  
XDV properly and insert the bolts from the bottom of the cabinet and secure them to the factory-  
installed cage nuts (see Figure 11). Tighten the bolts.  
If your cabinet’s mounting holes do not match those on the Liebert XDV, drill holes as  
required. To prevent metal shavings and particles from falling into the equipment in the cabinet  
or into the Liebert XDV, use a vacuum or other method to collect them while drilling the holes.  
After drilling the holes, insert bolts from the bottom of the cabinet and secure them to the factory-  
installed cage nuts (see Figure 11). Tighten the bolts.  
If also using mounting clips in conjunction with bolting method above, see 5.1.2 - Using Sup-  
10  
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Mounting the Liebert XDV  
Figure 11 Mounting hole locations—standard mounting method  
Rear of  
Liebert XDV  
Front of  
Liebert XDV  
Bolt 1/4" - 20  
(2 places, typ.)  
Fan tray removed to show mounting  
location(s) of 1/4" - 20 bolts  
Figure 12 Mounting hole locations—alternate mounting points  
Front of Liebert XDV  
13/16"  
(21mm)  
B
B
A
A
11"  
(279mm)  
Notes  
1. These dimensions may be  
20-7/8"  
(530mm)  
used when attaching Liebert  
XDV to a non-Liebert cabinet.  
2. Drill clearance holes as  
indicated:  
1
20-5/8"  
(524mm)  
1
"A" #10-32 screw--0.22" (5mm)  
diameter  
"B" 1/4 - 20 bolt--0.28" (7mm)  
diameter.  
3. Field to supply #10/32 screws,  
quantity of 4.  
Factory to supply 1/4 - 20 bolts,  
quantity of 20.  
A
A
7-1/16"  
(179mm)  
1
Rear of Liebert XDV  
DPN000770  
Page 7, Rev. 5  
BOTTOM VIEW  
11  
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Mounting the Liebert XDV  
5.1.2 Using Supplied Clips for Mounting  
1. Attach the mounting clips to the back of the Liebert XDV by fitting them into the machined slots.  
Tighten the bolts.  
2. If your cabinet has mounting holes in position for the clips, align the Liebert XDV  
properly and insert the bolts from the bottom of the cabinet and secure them with the included  
lock washers and nuts (see Figure 13). Tighten the nuts.  
If your cabinet’s mounting holes do not match the clips, drill holes as required. To prevent-  
ing metal shavings and particles from falling into the equipment in the cabinet or into the Liebert  
XDV, use a vacuum or other method to collect them while drilling the holes.  
After drilling the holes, insert bolts from the bottom of the cabinet and secure them with lock  
washers and nuts (see Figure 13). Tighten the nuts and bolts.  
If also using mounting clips in conjunction with bolting method above, see 5.1.1 - Bolting Lie-  
Figure 13 Mounting clip placement  
Liebert Foundation shown  
without panels for clarity.  
Mounting holes shown  
may not match all cabinets.  
Mounting Clip  
(two supplied)  
12  
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Mounting the Liebert XDV  
5.2  
Suspended Mounting Method  
The Liebert XDV also may be mounted above the cabinet by suspending it either from overhead com-  
ponents or from Unistruts above the cabinets (see Figures 15 and 16). An optional kit available from  
Liebert will simplify mounting the Liebert XDV above the computer cabinet.  
Each suspended-mounting method requires that the supporting components be strong enough to sup-  
port the Liebert XDV’s weight with coolant, 79 lb. (36kg). Each method also requires that the Liebert  
XDV’s placement above the computer cabinet meets the criteria in Figure 10.  
To ensure efficient cooling, a baffle or similar object must be installed between the suspended Liebert  
XDV and the computer cabinet (see Figure 16). The baffle’s purpose is to prevent the Liebert XDV  
from drawing in the cooled air that it has just discharged.  
Figure 14 Dimensions—optional external hanging brackets  
Top View  
2-1/2"  
(64mm)  
7/16"  
(11mm)  
3"  
(76mm)  
H
7/8" (22mm)  
4"  
(102mm)  
DPN000770  
Pg. 10, Rev. 5  
Front View , Left Side  
Table 3  
Suspension hardware and bracket dimensional data  
Liebert XDV Units  
to be Suspended  
Bracket Kit Part #  
"H"  
Brackets in Kit  
1
5
1
5
4
20  
4
180427G1 180427G5  
180427G11, 180427G15  
180427G22*  
20 (508)  
34-5/16 (872)  
20  
18-11/16 (474)  
33 (838)  
2
8
* Bracket kit for double-stacked Liebert XDVs  
13  
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Mounting the Liebert XDV  
5.2.1 Suspending the Liebert XDV from Unistruts  
The Liebert XDV may be bolted to customer-supplied Unistruts. The height of the Unistruts above  
the computer cabinet must be adequate to accommodate the combined height of the Liebert XDV and  
the baffle.  
To suspend the Liebert XDV from a Unistrut system:  
1. Bolt the hangers to each corner of the Liebert XDV, inserting the Liebert-supplied bolts into  
factory-fabricated holes in the bottom of the Liebert XDV. See Figure 15.  
2. Tighten all bolts firmly, taking care not to overtighten the bolts.  
3. Using a lifting mechanism, raise the Liebert XDV with brackets attached, to the proper height  
and bolt the brackets to the Unistruts.  
Figure 15 Suspending Liebert XDV from Unistruts  
Bolt 3/8" -16; nut and  
washer provided in kit  
Unistrut  
(field-supplied)  
Bolt a bracket to each  
corner of the Liebert XDV  
5.2.2 Suspending the Liebert XDV from Overhead Structures  
To suspend the Liebert XDV from the overhead structure using the optional overhead mounting kit  
and field-supplied all-thread bolts:  
1. Bolt the hangers to each corner of the Liebert XDV, inserting the Liebert-supplied bolts into  
factory-fabricated holes in the bottom of the Liebert XDV.  
2. Tighten all bolts firmly, taking care not to overtighten the bolts.  
3. Install the field-supplied all-thread bolts into the overhead structure, securing them to  
components so they will match the layout of the brackets  
4. Using a lifting mechanism, raise the Liebert XDV inserting the all-thread bolts through the bolt  
holes in the brackets  
5. Install field-supplied nuts and washers, on the all-thread bolts, placing them on the bolts at the  
level desired for hanging the Liebert XDV.  
6. Again using field-supplied nuts and washers, secure the Liebert XDV to the all-thread bolts.  
7. Tighten the nuts until the Liebert XDV is level and well-secured.  
14  
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Mounting the Liebert XDV  
Figure 16 Suspending Liebert XDV from the overhead structure  
3/8"-16 all-thread bolts,  
field-supplied, typical  
Hanging Liebert XDV unit  
To prevent bypass air  
from recirculating  
through the Liebert XDV  
without it passing through  
the cabinet, this space  
between the hanging  
XDV and the cabinet  
must be blocked.  
15  
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Mounting the Liebert XDV  
5.3  
Mounting Liebert XDVs in Stacked Setup  
Liebert designed the Liebert XDV to permit mounting the units in a stacked arrangement to increase  
the system’s heat-removal. Stacking may be done either during the original system or added later to  
an existing configuration.  
Stacking Liebert XDVs is possible when suspending units from either Unistruts or from the overhead  
structure. Hanger brackets are available in two lengths to ease hanging Liebert XDVs in a stacked  
arrangement.  
The upper Liebert XDV must be positioned forward of the front of its companion Liebert XDV for effi-  
cient heat removal (see Figure 17).  
Figure 17 Stacking configuration offset  
Hanging brackets suspend  
stacked Liebert XDVs from either  
Unistruts or from roof structure  
Rear of Liebert XDVs  
Upper Liebert XDV must  
line up with front edge of  
lower Liebert XDV  
Lower Liebert XDV must line up  
with front edge of the cabinet  
(space between Liebert XDV and  
cabinet must be blocked to prevent  
recirculation of cooled air  
FRONT  
OF  
CABINET  
For details on preventing  
recirculation, see Figure 16.  
16  
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Mounting the Liebert XDV  
5.3.1 Hanging Stacked Liebert XDVs from Unistruts  
Because the upper Liebert XDV in a stacked arrangement must be positioned farther forward than  
the lower Liebert XDV, two sets of Unistruts are required. The second set of Unistruts must be  
installed 9-7/8 inches (251mm) forward of the first set. This arrangement positions the stacked Lie-  
bert XDVs so that they meet the air-intake criteria shown in Figure 10 and Figure 17.  
After installing the Unistruts at the proper location, hang the Liebert XDVs as outlined in 5.2.1 -  
Figure 18 Attach hanger brackets to Liebert XDV for stacked arrangement  
Attach hanger brackets  
to each corner of each  
Liebert XDV. This  
arrangement permits  
mounting from either  
Unistruts or from overhead  
structure.  
10 - 32 x 5/8" length;  
factory-supplied  
1/4 - 20 x 5/8" length typical, 2;  
factory-supplied  
10 - 32 x 5/8" length typical, 3;  
factory-supplied  
Figure 19 Stacked Liebert XDVs suspended from Unistruts  
Unistrut field-supplied  
upper Liebert XDV: 1  
lower Liebert XDV: 2  
Bolt 3/8"- 16,  
nut and washer  
factory-supplied  
17  
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Mounting the Liebert XDV  
5.3.2 Hanging Stacked Liebert XDVs from the Overhead Structure  
Because the upper Liebert XDV in a stacked arrangement must be positioned farther forward than  
the lower Liebert XDV, the place where the hangers attach to the overhead structure must be offset  
accordingly. The second row of attachment locations must be 9-7/8 inches (251mm) forward of the first  
row of hanger mounting locations. This arrangement positions the stacked Liebert XDVs so that they  
meet the air-intake criteria shown in Figure 10 and Figure 17.  
After determining the proper for attachment to the overhead structure, hang the Liebert XDVs as  
Figure 20 Stacked Liebert XDVs ready for suspension from overhead structure  
3/8"-16 All-thread bolts,  
field-supplied (four  
required per Liebert XDV)  
18  
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Piping  
6.0 PIPING  
6.1 European Union Fluorinated Greenhouse Gas Requirements  
Stationary air conditioning, refrigeration, heat pump equipments and stationary fire protection sys-  
tems 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 atmo-  
sphere.  
The F-Gas Regulation requires operators to use 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.  
6.2  
System Connection Configuration  
If possible, connect the Liebert XDV modules to Liebert XDPs or Liebert XDCs in an interlaced config-  
uration (see Figure 21). In an interlaced configuration, half the cooling units in an aisle are con-  
nected to one Liebert XDP or Liebert XDC and the other half in that aisle are connected to another  
Liebert XDP or Liebert XDC. Such interlaced piping will keep half the Liebert XDV units operating  
and maintain even cooling in the conditioned space should one of the Liebert XDP or Liebert XDC  
units fail.  
However, in a system with just one Liebert XDP or Liebert XDC, connect Liebert XDV modules in a  
non-interlaced configuration (see Figure 22).  
Figure 21 Typical Liebert XDV piping—interlaced connections  
TOP VIEW—NOT TO SCALE  
Liebert XDV  
A
Liebert XDV  
B
Liebert XDV  
A
Liebert XDV  
B
Liebert  
XDP/Liebert  
Supply A  
Return A  
Return B  
Supply B  
Liebert  
XDP/Liebert  
Liebert XDV  
Liebert XDV  
A
Liebert XDV  
B
Liebert XDV  
A
NOTE: Line size does NOT  
indicate pipe size difference.  
B
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Piping  
Figure 22 Typical Liebert XDV piping—non-interlaced connection  
Return  
TOP VIEW—NOT  
TO SCALE  
Supply  
Liebert  
XDP/Lie-  
Liebert XDV  
A
Liebert XDV  
A
Liebert XDV  
A
Liebert XDV  
A
6.2.1 Piping Connections to Liebert XDP or Liebert XDC  
Refer to site specific drawings for general locations of the piping connections. For Liebert XDV con-  
nection locations, refer to Figures 1 and 24.  
6.3  
Connection Methods and Points  
The assembly and connection means used for piping in the Liebert XD system are the same as those  
used in conventional refrigeration systems. Observe all standard practices during installation and  
startup to prevent damage and contamination. All piping must be ASTM Type "L" copper pipe.  
For hard-piped Liebert XDVs, the supply piping connection is 1/2" OD copper pipe, and the return  
piping connection is 5/8" OD copper. For Liebert XDVs with the pre-charged option, both supply and  
return fittings are one-shot connections. These fittings contain pressurized R-134a refrigerant inside  
the Liebert XDV.  
20  
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Piping  
Figure 23 Hard-piped connection diagram  
Return Main  
(seen from end )  
2-1/8" O.D.  
Recommended Arc  
or 2-5/8" O.D.  
Acceptable Arc  
Supply Main  
(seen from end )  
1-1/8" O.D.  
or 1-3/8" O.D.  
5/8” Refrigerant-Grade  
Full-Port Ball Valve  
Field-Supplied and  
Field-Installed  
1/2” Refrigerant-Grade  
Full-Port Ball Valve  
Field-Supplied and  
Field- Installed  
Copper Tubing  
Total length of each  
line from Liebert XDV  
to Main; not to exceed  
72" (1829mm)  
Refer to Table 4 for details.  
Top of Liebert XDV  
Right Side  
of Liebert XDV  
21  
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Piping  
6.4  
Hard Piped Connection Sizes  
Supply piping connection is 1/2" OD copper pipe and return piping connection is 5/8" OD copper.  
6.4.1 Holding Charge—Hard-Piped Units  
The Liebert XDV in hard-piped configuration is shipped with a low-pressure holding charge (about 30  
psi) of nitrogen to prevent oxidation and moisture. This must be vented before removing the caps on the  
ends of the supply and return piping.  
To vent the holding charge:  
1. Find the Schrader valve that contains the nitrogen holding charge in the Liebert XDV (see  
2. Vent the holding charge by depressing the pin in the valve.  
3. Replace and secure the cap on the Schrader valve.  
Figure 24 Piping location and connection sizes—hard-piped units  
Top View of  
Liebert XDV  
Schrader Valve  
Supply  
Connection  
1/2"  
SCHRADER VALVE  
SUPPLY (IN)  
RETURN (OUT)  
2-3/8"  
(60mm)  
Return  
Connection  
5/8"  
1-1/8"  
(29mm)  
3/4"  
(19mm)  
Rear of Liebert XDV  
DPN000770  
2-5/8"  
Page 4, Rev. 5  
(67mm)  
22  
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Piping  
Figure 25 Schrader valve location for venting holding charge  
Front of Liebert XDV  
Top of Liebert XDV  
Schrader  
Valve  
SCHRADER VALVE  
SUPPLY(IN)  
RETURN (OUT)  
Supply pipe  
connection  
(1/2" OD)  
Return pipe  
connection  
(5/8" OD)  
Rear of XDV  
6.4.2 Brazing Preparations—Hard-Piped Units  
After the holding charge for a hard-piped Liebert XDV has been vented, a torch can be used to remove  
the caps over the ends of the supply and return lines.  
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 refrig-  
eration piping.  
6.5  
Recommended Piping Size  
NOTICE  
To minimize the amount of refrigerant required, do NOT oversize the piping.  
Connect the main pipes between the Liebert XDV branch piping and the Liebert XDP or Liebert XDC  
according to Table 4. Elbows and restrictions must be minimized to ensure good fluid flow.  
Please see Table 4 below for recommended pipe sizes and Figure 3 for piping segment locations.  
23  
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Piping  
Table 4  
Branch piping sizes for refrigerant loop  
Pipe Function  
Size / Equivalent Pipe Length  
Liebert XDP/Liebert XDC supply line, from  
Liebert XDP/Liebert XDC supply  
to farthest Liebert XDV  
1-1/8" OD (1.025" ID) for lengths up to 60 feet (18m)  
1-3/8" OD (1.265" ID) for lengths over 60 but less than 175 feet (18 to 53m)  
Liebert XDP/Liebert XDC return line, from  
farthest Liebert XDV  
to Liebert XDP/Liebert XDC return  
2-1/8" OD (1.985" ID) for lengths up to 60 feet (18m)  
2-5/8" OD (2.465" ID) for lengths over 60 but less than 175 feet (18 to 53m)  
1/2" OD (0.430" ID) for lengths up to 6 feet (1.8m)  
From Liebert XDV supply to supply line of  
Liebert XDP/Liebert XDC  
5/8" OD (0.545" ID) for lengths over 6 feet but less than 35 feet (1.8-10.6m)  
5/8" OD (0.545" ID) for lengths up to 6 feet (1.8m)  
From Liebert XDV return to return line of  
Liebert XDP/Liebert XDC  
7/8" OD (0.785" ID) for lengths over 6 feet but less than 35 feet (1.8-10.6m)  
6.6  
Connection Methods—One-Shot Connections  
The assembly and connection means used for piping in the Liebert XD system are the same as those  
used in conventional refrigeration systems. Observe all standard practices during installation and  
startup to prevent damage and contamination.  
Both supply and return fittings may be supplied with optional, one-shot connections. These fittings  
contain pressurized R-134a refrigerant inside the Liebert XDV.  
CAUTION  
!
Risk of sudden refrigerant discharge. Can cause injury and loss of charge.  
If the optional pre-charged option is chosen, the Liebert XDV unit is shipped with a full  
charge of R-134a refrigerant under pressure. Do not remove the pipe caps or plugs before the  
unit is ready for connection to Liebert XD Piping.  
Supply and return fittings on the pre-charged Liebert XDV units are one-shot connections. Do  
not disconnect one-shot connections after they have been connected. Disconnection will  
release pressurized R-134a refrigerant from the Liebert XDV.  
If the unit includes the optional, factory-installed, one-shot style connections, proceed with 6.7 - Field  
If the unit does not include flex piping, refer to 6.4.1 - Holding Charge—Hard-Piped Units.  
Figure 26 Piping location and connection sizes—pre-charged units with one-shot connections  
Top View  
Supply  
Connection  
1/2"  
Detail  
Area “A”  
Return  
Connection  
5/8"  
Detail “A”  
24  
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Piping  
6.6.1 Refrigerant Charge—Pre-Charged Option  
Liebert XDVs with the pre-charged option are equipped with one-shot connections on the supply and  
return fittings. These contain a charge of R-134a refrigerant under pressure within the unit. This  
charge must not be vented.  
Do not remove the pipe caps or plugs before the unit is ready for connection to Liebert XD Piping. Do  
not disconnect one-shot connections after they have been connected.  
6.7  
Field Installation of Liebert Flex Pipe Kit on Liebert XDV  
If you are not performing a service installation or a field-retrofit, skip this section and proceed with  
Liebert Flex Pipe kits are available in lengths of 4, 6, 8 and 10 feet (1.2, 1.8,2.4 and 3 meters). Connec-  
tion style to the unit end may be straight or 90 degrees. Connection to the prefab piping assembly is a  
threaded coupler. For data on acquiring the correct kit for your installation, see Table 7.  
Figure 27 Liebert XD Flex Pipe dimensions—straight and 90-degree connections  
Connection  
to Prefabricated  
Piping assembly  
Connection  
to Prefabricated  
Piping assembly  
90-Degree  
Connection  
Length  
4, 6, 8 or 10 feet  
(1.2, 1.8, 2.4 or 3 meters)  
Length  
4, 6, 8 or 10 feet  
(1.2, 1.8, 2.4 or 3 meters)  
Straight Connection  
90° Connection to XD Cooling Unit  
(One-Shot Coupling)  
Connection to XD Cooling Unit  
(One-Shot Coupling)  
DPN000780  
Pg. 1, Rev. 1  
DPN000780  
Pg. 2, Rev. 1  
6.8  
Connecting Liebert XD Flex Pipe to Liebert XDV Modules  
1. Remove the caps on the supply and return lines on the top of the Liebert XDV.  
2. Lubricate the threads, diaphragm and O-ring with one or two drops of mineral oil.  
3. Connect the line-set coupling finger-tight.  
4. Make sure the Schrader valve is properly oriented; refer to the label on the top of the Liebert  
XDV.  
5. Hold the backup hex nut with a wrench while tightening the swivel nut.  
6. Tighten the swivel nut on the female coupling until it is seated or a definite resistance is felt.  
7. Once a definite bottoming resistance is felt (as in metal to metal), place a mark lengthwise from  
the swivel nut to the backup hex and tighten the swivel nut on the female coupling an additional  
1/4 turn.  
8. Tighten both the supply fittings and the return fittings to 35-45ft/lb (47-61Nm).  
9. Mark the female and male coupler with for future reference.  
25  
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Piping  
6.9  
Connecting a Liebert XDV with Liebert Flex Pipe to an Operational Liebert XD  
System  
NOTICE  
Before connecting the Liebert XDV with Liebert Flex Pipe to the prefabricated piping mains,  
check the whole system for leaks.  
Check the Liebert XDV to ensure that the unit has no refrigerant leaks.  
Read all instructions before beginning installation.  
Tools Required  
• Two adjustable wrenches, with a maximum adjustment size of 2-1/2 inches  
• Two ladders  
• Lifting mechanism if the Liebert XDV is going to be suspended above the cabinet  
NOTE  
This operation requires two or more people.  
1. Determine the port location of the supply and return piping overhead  
2. Make sure the service valve for each port is closed  
3. Remove cap for only the required ports. Do not remove caps from the unused ports.  
4. Once Step 3 has been completed, remove the pipe plugs that are supplied on the Liebert Flex  
Pipe on the Liebert XDV.  
Figure 28 Liebert XD prefabricated piping assembly  
Return Main  
Service Valve, typical  
(all ports)  
Supply Main  
Threaded Cap  
(Typical)  
5. Use system refrigerant to lubricate the face of the male coupling half, including the poppet valve  
face and the stainless steel delta ring.  
6. Thread the return couplers together, the larger of the two couplers (Liebert Flex Pipe and return  
main).  
7. Use one of the adjustable wrenches to hold the fixed side of the female coupler on the Liebert XDV  
stationary. With the other adjustable wrench, tighten the collar onto the coupler.  
Tighten these only until the force required to tighten abruptly increases. See Figure 29.  
NOTICE  
Do not overtighten the couplers. Overtightening of couplers will damage the couplers.  
26  
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Piping  
Figure 29 Detail view of Liebert XD Flex Pipe and prefabricated piping port  
Service Valve  
Note:  
Make sure the valve  
is closed before attaching  
flex pipe to the system.  
Tighten collar  
with wrench.  
DO NOT  
Supply Side Torque Range for  
1/2" coupler is 22.1 to 25.8 lb/ft (30-35Nm)  
OVERTIGHTEN!  
Return Side Torque Range for  
1" coupler is 59 to 62.7 lb/ft (80-85Nm)  
Hold threaded coupler here  
with a wrench to keep the  
pipe stationary while tightening  
collar with another wrench.  
Flex Pipe  
8. Repeat Steps 6 and 7 for the smaller coupler (supply line).  
9. Once the supply and return connections are completed, check to make sure the Liebert XDV fan  
power switches are Off, then connect the power cords to their power sources.  
10. Turn the fan switches on. Ensure that the fans operate.  
11. Open the return service valve first, then open the supply service valve.  
With the fans running, cool air is discharged from the front of the Liebert XDV.  
Figure 30 Liebert XD system with prefabricated piping assembly and Liebert XD Flex Pipe  
Return Service Valve  
Make sure valve is  
open after system  
leak check  
Supply Service Valve.  
Make sure valve is  
open after system  
leak check  
Return  
Main  
Supply Main  
Return Liebert  
Flex Pipe  
from XDV unit  
Supply Liebert Flex Pipe  
from Liebert XDV unit  
27  
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Piping  
6.10 Disconnecting a Liebert XDV With Liebert Flex Pipe From a Liebert XD System  
CAUTION  
!
Risk of sudden discharge of pressurized refrigerant. Can cause equipment damage or injury.  
Do not disconnect threaded refrigerant couplers at the unit cabinet end without relieving  
system pressure. Reclaim any refrigerant during removal of unit from system.  
NOTICE  
Before uninstalling a Liebert XDV with Liebert Flex Pipe from the prefabricated piping  
mains: With the fans running, close the supply service valve, wait approximately  
two minutes, then close the return service valve.  
Removing a Liebert XDV from above a cabinet will require two people. Read all instructions  
before beginning.  
Tools Required  
• Two adjustable wrenches, maximum adjustment size of 2-1/2 inches  
• Two ladders  
• Phillips head #2 screwdriver  
• Lift mechanism, if the Liebert XDV is suspended above cabinet  
1. Ensure the Liebert XDV fan switches are both On and the fans are operational.  
2. Close the service valve in the supply line to the Liebert XDV (smaller coupler).  
3. With the Liebert XDV fans running, wait two minutes.  
4. Close the service valve in the return line to the Liebert XDV (larger coupler).  
5. Turn the fan power switches to the Off position. Once the fan switches are turned Off, unplug the  
power cords from their power source.  
6. Locate and have at the ready the caps and plugs for both ends of the supply and return couplers.  
7. Loosen the female supply coupler from the male supply coupler (smaller coupler). This requires  
two adjustable wrenches. Refer to Figure 29.  
8. The Liebert XDV side of the female coupler must be held stationary while the collar on the  
coupler is being loosened. Refer to Figure 29.  
9. Disconnect the coupler.  
Figure 31 Profile view of the Liebert XD system with one-shot connections  
One-Shot Connections  
One-Shot Support Bracket  
Serial Tag  
Service  
Liquid Sensing  
Valve  
(optional)  
Disconnect wiring  
prior to moving XDV  
Primary and  
Secondary  
IEC Power  
Cord  
Return  
Line  
Supply  
Line  
Fan Power  
Switches  
Rear of the XDV  
10. Place the protective dust cap and plug back onto both ends of the coupler on the Liebert XDV and  
the port pipe.  
28  
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Piping  
Figure 32 Piping mains without Liebert XDV and Liebert Flex Pipe  
11. Repeat Steps 8 through 10 for the return coupler (larger coupler).  
12. Carefully lay the Liebert Flex Pipe on the top of the Liebert XDV.  
NOTICE  
Risk of permanent damage to the flex pipes. Do not fold or bend flex pipe tightly.  
13. Carefully unbolt the Liebert XDV from the cabinet or hanging bracket, if applicable.  
14. With the help of another person, carefully lower the Liebert XDV from the cabinet or hanging  
bracket onto a stable surface.  
6.11 Insulation  
To minimize the possibility of condensation, insulate all piping between the Liebert XDV and the Lie-  
bert XDP or Liebert XDC.  
29  
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Electrical  
7.0 ELECTRICAL  
The unit must be installed in accordance with national wiring regulations. Refer to the unit’s serial  
tag for electrical requirements. Refer to Table 5 for details.  
Replacement of any wiring or supply cord must be performed only by the manufacturer, the manufac-  
turer’s service agent or a similarly qualified person.  
7.1  
Connecting High Voltage Cables for CSA/C-US Certified Units  
WARNING  
!
Risk of electric shock. Can cause injury or death.  
Disconnect all local and remote electric power before working within the unit.  
Connect IEC power cords to each receptacle on the Liebert XDV and to power sources. If only one  
power source is available, then only the power connection labeled “SECONDARY” should be con-  
nected to the power source. See Figures 33 and 34 for location of power connections.  
Figure 33 Liebert XDV electrical connections for CSA-approved units  
60Hz MODELS ONLY.  
FIELD WIRING  
CONNECTIONS  
AT TERMINAL STRIP  
TO BE N.E.C. CLASS 2  
USE SWITCH  
CONTACTS WITH 75V.A.  
MINIMUM  
50Hz MODELS ONLY.  
FIELD WIRING  
CONNECTIONS  
AT TERMINAL STRIP  
FOR SAFETY EXTRA  
LOW VOLTAGE CIRCUITS  
ONLY. USE SWITCH  
CONTACTS RATED  
75V.A. MINIMUM,  
24 VOLTS AC  
MAXIMUM.  
1774241 P1 REV1  
Rear of  
Liebert XDV  
Right Side of Liebert XDV  
Condensate Detection  
Dry Contacts – Low  
Voltage Connections  
60Hz MODELS ONLY  
Field wiring connections  
at terminal strip to be NEC  
Class 2. Use switch contacts  
with 75VA minimum rating.  
82 83  
A
M
P
Primary  
Circuit  
Breaker  
50Hz MODELS ONLY  
Field wiring connections  
at terminal strip for safety extra  
low voltage circuits only. Use  
switch contacts rated 75VA  
minimum, 24VAC maximum.  
IEC Primary and  
Secondary  
PRIMARY  
POWER  
SOURCE  
Power Inlet  
SECONDARY  
1774241P1  
A
M
P
Secondary  
Circuit Breaker  
Rear of Liebert XDV  
30  
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Electrical  
Figure 34 Liebert XDV electrical connections for CE-approved units  
60Hz MODELS ONLY.  
FIELD WIRING  
CONNECTIONS  
AT TERMINAL STRIP  
TO BE N.E.C. CLASS 2  
USE SWITCH  
CONTACTS WITH 75V.A.  
MINIMUM  
50Hz MODELS ONLY.  
FIELD WIRING  
CONNECTIONS  
AT TERMINAL STRIP  
FOR SAFETY EXTRA  
LOW VOLTAGE CIRCUITS  
ONLY. USE SWITCH  
CONTACTS RATED  
75V.A. MINIMUM,  
24 VOLTS AC  
MAXIMUM.  
1774241 P1 REV1  
60Hz MODELS ONLY  
Field wiring connections  
at terminal strip to be NEC  
Class 2. Use switch contacts  
with 75VA minimum rating.  
82 83  
Condensate Detection  
Dry Contacts – Low Voltage  
Connections  
50Hz MODELS ONLY  
Field wiring connections  
at terminal strip for safety extra  
low voltage circuits only. Use  
switch contacts rated 75VA  
minimum, 24VAC maximum.  
Knockout  
for Optional  
Wiring  
PRIMARY  
POWER  
SOURCE  
Primary and  
Secondary  
Power Cords  
SECONDARY  
1774241P1  
FACTORY-SUPPLIED  
POWER CORDS  
(straight-on and profile)  
If the factory-supplied power  
cords do not match with the  
user’s electrical outlets, a  
suitable adapter must be  
field-provided.  
31  
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Electrical  
7.2  
Connecting Low Voltage Wiring—Optional  
Low voltage connections to the Liebert XDV are available only on units with the optional condensate  
detection feature. The low voltage connections are on the right side of the electrical connections box,  
just above the power connections (see Figure 35). These dry contacts can to be connected to a moni-  
toring unit, such as Liebert’s SiteScan®.  
For units equipped with condensate detection, make low voltage connections according to site-specific  
drawings. The unit must be installed in accordance with national wiring regulations.  
Figure 35 Low voltage connections  
Condensate Detection Connections  
60Hz MODELS ONLY.  
FIELD WIRING  
CONNECTIONS  
AT TERMINAL STRIP  
TO BE N.E.C. CLASS 2  
USE SWITCH  
CONTACTS WITH 75 V.A.  
MINIMUM RATING.  
Rear View of Liebert XDV  
50Hz MODELS ONLY.  
FIELD WIRING  
CONNECTIONS  
AT TERMINAL STRIP  
FOR SAFETY EXTRA  
LOW VOLTAGE CIRCUITS  
ONLY. USE SWITCH  
CONTACTS RATED  
75 V.A. MINIMUM,  
24 VOLTS AC  
MAXIMUM.  
1774241P1 REV 1  
60Hz MODELS ONLY.  
FIELD WIRING  
CONNECTIONS  
AT TERMINAL STRIP  
TO BE N.E.C. CLASS  
USE SWITCH  
2
CONTACTS WITH 75 V.A.  
MINIMUM RATING.  
50Hz MODELS ONLY.  
FIELD WIRING  
CONNECTIONS  
AT TERMINAL STRIP  
FOR SAFETY EXTRA  
LOW VOLTAGE CIRCUITS  
ONLY. USE SWITCH  
CONTACTS RATED  
75 V.A. MINIMUM,  
24 VOLTS AC  
MAXIMUM.  
1774241P1 REV  
1
32  
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Installation Checklist and System Fill for Startup  
8.0 INSTALLATION CHECKLIST AND SYSTEM FILL FOR STARTUP  
8.1 Checklist for Proper Installation  
___ 1. Liebert XDV module is properly mounted, secured either to the cabinet, overhead structure or  
to the Unistruts.  
___ 2. Power cords connected to electrical supply.  
___ 3. Low voltage wiring to optional condensate detection on Liebert XDV.  
___ 4. Piping from Liebert XDP to Liebert XDV, with isolation valves piped to each Liebert XDV.  
a. Hard-piped units connected to prefabricated headers  
b. Flex piping connections to prefabricated header assembly, if flex piping is used.  
___ 5. Piping insulated.  
___ 6. Start the Liebert XDV to ensure proper operation (see 9.1 - Start the Liebert XDV).  
___ 7. Shut down the Liebert XDV.  
8.2  
Charging with Refrigerant and Starting the Liebert XD System  
The Liebert XD System must be completely installed before it is charged with refrigerant. After  
installation is complete, refer to the Liebert XDP or Liebert XDC user manual for instructions on  
charging the Liebert XD modules with refrigerant and starting the system. The complete Liebert XD  
system includes all cooling modules, a Liebert XDC or Liebert XDP unit and any other connected  
equipment.  
33  
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Operation  
9.0 OPERATION  
The Liebert XDV’s fan controls are on the front of the unit, near the fans, for easy access. Each switch  
controls the operation of one fan (see Figure 36). The separate switches permit the use of only one  
fan at a time, reducing the airflow if the Liebert XDV’s full cooling capacity is not needed.  
The Liebert XDV’s primary and secondary circuit breakers are also on the front of the unit. They are  
at the top left when facing the Liebert XDV (see Figure 36).  
NOTE  
One of the Liebert XDV’s fans must be turned on before either the Liebert XDP or Liebert XDC  
is switched on.  
One of the Liebert XDV’s fans must be operating at all times that the Liebert XDP or Liebert  
XDC is operating. Operating either the Liebert XDP or the Liebert XDC without at least one of  
the Liebert XDV’s fans rotating may cause a system malfunction.  
Figure 36 Fan switches  
Primary and Secondary  
Circuit Breakers  
On/Off Switch  
for Right Fan  
On/Off Switch  
for Left Fan  
9.1  
Start the Liebert XDV  
The Liebert XDV fans must be on before starting the Liebert XDP or Liebert XDC that will supply  
coolant to the Liebert XDVs.  
To start the Liebert XDV, press either of the rocker switches to turn on one or both of the Liebert  
XDV’s fans.  
34  
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Maintenance  
10.0 MAINTENANCE  
Minimal maintenance is required to keep the Liebert XDV operating at optimal levels. The unit  
should be cleaned and checked for damage and worn parts. Suggested maintenance includes:  
• Cooling fins—Clean any dust and debris from the cooling fins, taking care not to bend them  
• Circulating fans—Clean any dust from the fans.  
10.1 Fluorinated Greenhouse Gas Requirements  
Stationary air conditioning, refrigeration, heat pump equipments and stationary fire protection sys-  
tems 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 atmo-  
sphere.  
The F-Gas Regulation requires operators to use 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.  
10.2 Internal Access  
WARNING  
!
Risk of high-speed moving parts. Can cause death, injury and equipment damage.  
Before opening the Liebert XDV, shut the unit off and disconnect all electrical power. Wait for  
the Liebert XDV’s fans to stop rotating before beginning to open the unit.  
WARNING  
!
Risk of electrical shock. May cause death or injury.  
Disconnect all power before working within.  
• Turn off the main switch (in the center of the fan tray).  
• Remove both power cords from the electrical supply outlets or from the receptacles on the  
back of the Liebert XDV.  
CAUTION  
!
Risk of improper handling. May cause injury.  
Use both hands when removing fan tray assembly. Improperly handling the assembly may  
cause injury during removal.  
The conditions required for sensitive electronic equipment should preclude the accumulation of appre-  
ciable amounts of dust in the Liebert XDV. Most of that small amount should be found on the rear  
coils, near the air inlet. The rear covers and the fan tray on the front of the Liebert XDV are easily  
removed for maintenance. (A wiring diagram is provided on the inside of the fan tray.)  
To remove the rear grille:  
1. Loosen the six screws holding the grille on the rear of the Liebert XDV.  
2. Remove the grille and lay it aside for reinstallation.  
35  
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Maintenance  
10.2.1 Accessing Internal Electrical Components  
1. Disconnect all power inputs.  
2. Remove five screws to remove the front electrical panel cover. SeeFigure 37 and 12 of 13  
3. Lift off the panel.  
Figure 37 Accessing internal electrical components  
Edge of the  
Fan Assembly  
36  
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Maintenance  
To remove the fan tray:  
1. Remove the front electrical panel cover as described in 10.2.1 - Accessing Internal Electrical  
2. Disconnect the 12-pin connector. Take care not to stretch or stress the electrical wires to the fans.  
3. Remove the four screws holding the fan tray on the Liebert XDV.  
4. Support the fan tray when removing the last screw to keep it from falling.  
5. Set the screws aside for reinsertion after maintenance is completed.  
6. Then lift the fan tray up and set it on top of the Liebert XDV or on a nearby surface.  
Figure 38 Removing the fan tray  
Screws, 5  
Mounting  
Flange  
Fan Tray  
To reattach the fan tray:  
1. Clean the fan tray to prevent debris from being blown into the computer cabinet.  
2. Reconnect the 12-pin connector.  
3. Lift the fan tray and fit it against the base of the Liebert XDV housing (see Figure 38).  
4. Holding the fan tray against the Liebert XDV housing, insert the screws extracted when removing the  
fan tray.  
5. Tighten the screws securely.  
6. Reconnect power to the Liebert XDV.  
37  
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Specifications  
11.0 SPECIFICATIONS  
Table 5  
Liebert XDV10 specifications  
XDV10BK--*; XDV10DK--*  
XDV10BKP-*; XDV10DKP-*  
XDV10BK-E*; XDV10DK-E*  
XDV10BT--*; XDV10DT--*  
XDV10BTP-*; XDV10DTP-*  
XDV10BT-E*; XDV10DT-E*  
XDV10BS--*; XDV10DS--*  
XDV10BSP-*; XDV10DSP-*  
XDV10BS-E*; XDV10DS-E*  
XDV10BKPE*; XDV10DKPE* XDV10BTPE*; XDV10DTPE* XDV10BSPE*; XDV10DSPE*  
XDV10BKR-*; XDV10BKRE*  
XDV10DKR-*; XDV10DKRE*  
XDV10BTR-*; XDV10BTRE*  
XDV10DTR-*; XDV10DTRE*  
XDV10BSR-*; XDV10BSRE*  
XDV10DSR-*; XDV10DSRE*  
Models  
60 Hz  
60 Hz  
50 Hz  
50 Hz  
Nominal (98ºF [37ºC] EAT): 10kW / 2.8 Tons  
Maximum (106ºF [41ºC] EAT): 11.8kW/3.4 Tons Maximum (116ºF [47ºC] EAT): 11.8kW/3.4 Tons  
Nominal (98ºF [37ºC] EAT): 8kW / 2.3 Tons  
Cooling Capacity  
Capacity Rating is @ 55ºF (13ºC) Entering Fluid Temperature and  
50ºF (10ºC) or lower dew point, rear air inlet.  
Conditions  
Electrical Requirements  
Input  
230V model:  
120V model: 1ph-60 Hz  
230V model: 1ph-50 Hz  
1ph-60 Hz  
2 power connections, each model  
230V model: 1.0A  
Input power connections  
Full Load Amps  
120V model: 2.0A  
180  
Power consumption,  
nominal, watts  
190  
190  
190  
Dimensions, inches (mm)  
Height – unit only  
14 (355) not including pipe connections  
18-5/8 (473)  
Height – including hard  
pipe connections  
Height – including one-  
shot connections  
19-5/8 (498)  
Width  
Depth – Top  
22-7/8 (581)  
39-1/2 (1003)  
29-5/8 (752)  
Depth – Bottom  
Weight, lb (kg)  
Unit only  
77 (35)  
125 (57)  
79 (36)  
Shipping weight  
Installed, with refrigerant  
Number of fans  
2
2
2
2
1000 (1699) with rear inlet. Bottom inlet airflow 833 (1415) with rear inlet. Bottom inlet airflow  
Airflow, Nominal,  
ft / min (m / hr)  
may be less, depending on restrictions inside  
may be less, depending on restrictions inside  
3
3
cabinet  
cabinet  
Audible noise  
78 dBa sound power  
73 dBa sound power  
Pipe Connections (without Liebert Flex Pipe)  
Refrigerant supply  
from Liebert XDP/ XDC  
1/2" OD, Cu, (optional 1/2" threaded coupler flex piping)  
Refrigerant return  
to Liebert XDP/ XDC  
5/8" OD, Cu, (optional 3/4" threaded coupler flex piping)  
Serviceable Parts  
Cabinet Exterior Finish  
Options  
Fans and electrical components  
Black, matte finish, heat-fused powder coat  
Condensate sensing  
(factory-installed)  
Dry contact outgoing signal  
Pre-Charged Refrigerant  
R-134a Refrigerant, one-shot connections  
Agency  
Approvals  
CSA 60Hz  
CSA 50Hz  
CE 50Hz  
* = Revision level of unit  
38  
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Specifications  
Table 6  
Liebert XDV8 specifications  
XDV8BK--*; XDV8DK--*  
XDV8BKP-*; XDV8DKP-*  
XDV8BK-E*; XDV8DK-E*  
XDV8BKPE*;XDV8DKPE*  
XDV8BKR-*; XDV8BKRE*  
XDV8DKR-*; XDV8DKRE*  
XDV8BT--*; XDV8DT--*  
XDV8BTP-*; XDV8DTP-*  
XDV8BT-E*; XDV8DT-E*  
XDV8BTPE*; XDV8DTPE*  
XDV8BTR-*; XDV8BTRE*  
XDV8DTR-*; XDV8DTRE*  
XDV8BS--*; XDV8DS--*  
XDV8BSP-*; XDV8DSP-*  
XDV8BS-E*; XDV8DS-E*  
XDV8BSPE*; XDV8DSPE*  
XDV8BSR-*; XDV8BSRE*  
XDV8DSR-*; XDV8DSRE*  
Models  
60 Hz  
60 Hz  
50 Hz  
50 Hz  
Nominal (98°F [37°C] EAT): 8.8kW / 2.5 Tons  
Maximum (95°F [35°C] EAT): 8.8kW / 2.5 Tons  
Nominal (98°F [37°C] EAT): 8kW/ 2.3 Tons  
Maximum (103°F [39°C] EAT): 8.8kW/2.5Tons  
Cooling Capacity  
Capacity rating is @ 55ºF (13ºC) Entering Fluid Temperature and  
50ºF (10ºC) or lower dew point, rear air inlet.  
Conditions  
Electrical Requirements  
Input 120V model: 1ph-60 Hz 230V model: 1ph-60 Hz  
230V model: 1ph-50 Hz  
2 power connections, each model  
230V model: 1.0A  
Input power connections  
Full Load Amps  
120V model: 2.0A  
180  
Power consumption,  
nominal, watts  
190  
190  
190  
Dimensions, inches (mm)  
Height – unit only  
14 (355) not including pipe connections  
18-5/8 (473)  
Height – including pipe  
connections  
Width  
Depth – Top  
22-7/8 (581)  
39-1/2 (1003)  
29-5/8 (752)  
Depth – Bottom  
Weight, lb (kg)  
Unit only  
77 (35)  
Shipping weight  
125 (57)  
Installed, with  
refrigerant  
79 (36)  
Number of Fans  
2
2
2
2
833 (1415) with rear inlet. Bottom inlet airflow  
may be less, depending on restrictions inside  
cabinet  
Airflow, Nominal,  
ft / min (m / hr)  
1000 (1699) with rear inlet. Bottom inlet airflow may  
be less, depending on restrictions inside cabinet  
3
3
Audible noise  
78 dBa sound power  
73 dBa sound power  
Pipe Connections (without Liebert Flex Pipe)  
Refrigerant Supply  
from Liebert  
1/2" OD Cu, (optional 1/2" threaded coupler flex piping)  
XDP/Liebert XDC  
Refrigerant Return  
to Liebert XDP/Liebert  
XDC  
5/8" OD Cu, (optional 3/4" threaded coupler flex piping)  
Serviceable Parts  
Fans and electrical components  
Cabinet Exterior  
Finish  
Black, matte finish, heat-fused powder coat  
Options  
Condensate sensing  
(factory-installed)  
Dry contact outgoing signal  
Pre-Charged  
R-134a Refrigerant, one-shot connections  
Agency  
Approvals  
CSA 60Hz  
CSA 50Hz  
CE 50Hz  
* = Revision level of unit  
39  
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Specifications  
Table 7  
Liebert XD Liebert Flex Pipe assemblies, supply and return  
Minimum Bend Radius  
inches (mm)  
Liebert P/N  
Liebert P/N  
Straight Connection 90-Degree Connection Length  
Description  
Assembly  
186568G1  
186568G2  
186568G3  
186568G4  
Assembly  
186567G1  
186567G2  
186567G3  
186567G4  
ft (m)  
6 (1.8)  
10 (3.0)  
8 (2.5)  
4 (1.2)  
Supply  
Return  
Liebert XD Flex  
Pipe Kit  
7 (178)  
8 (203)  
40  
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Ensuring The High Availability  
Of Mission-Critical Data And Applications.  
Technical Support / Service  
Web Site  
Emerson Network Power, the global leader in enabling business-critical  
continuity, ensures network resiliency and adaptability through  
a family of technologies—including Liebert power and cooling  
technologies—that protect and support business-critical systems.  
Liebert solutions employ an adaptive architecture that responds  
to changes in criticality, density and capacity. Enterprises benefit  
from greater IT system availability, operational flexibility and  
reduced capital equipment and operating costs.  
Monitoring  
800-222-5877  
Outside the US: 614-841-6755  
Single-Phase UPS  
800-222-5877  
Outside the US: 614-841-6755  
Three-Phase UPS  
800-543-2378  
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  
Asia  
7/F, Dah Sing Financial Centre  
108 Gloucester Road, Wanchai  
Hong Kong  
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.  
852 2572220  
Fax: 852 28029250  
® Liebert is a registered trademark of Liebert Corporation.  
All names referred to are trademarks  
or registered trademarks of their respective owners.  
SL-16626_REV06_05-08  
Emerson Network Power.  
The global leader in enabling Business-Critical Continuity.  
EmersonNetworkPower.com  
AC Power  
Connectivity  
DC Power  
Embedded Computing  
Embedded Power  
Monitoring  
Outside Plant  
Racks & Integrated Cabinets  
Power Switching & Controls  
Services  
Precision Cooling  
Surge Protection  
Business-Critical Continuity, Emerson Network Power and the Emerson Network Power logo are trademarks and service marks of Emerson Electric Co.  
©2008 Emerson Electric Co.  
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