Vertiv Air-cooled User Manual
Liebert®
Air-cooled, Direct-drive Drycooler
Installer/User Guide
50 Hz and 60 Hz
The information contained in this document is subject to change without notice
and may not be suitable for all applications. While every precaution has been
taken to ensure the accuracy and completeness of this document, Vertiv
assumes no responsibility and disclaims all liability for damages resulting from
use of this information or for any errors or omissions. Refer to other local
practices or building codes as applicable for the correct methods, tools, and
materials to be used in performing procedures not specifically described in this
document.
The products covered by this instruction manual are manufactured and/or sold
by Vertiv. This document is the property of Vertiv and contains confidential
and proprietary information owned by Vertiv. Any copying, use or disclosure of
it without the written permission of Vertiv is strictly prohibited.
Names of companies and products are trademarks or registered trademarks of
the respective companies. Any questions regarding usage of trademark names
should be directed to the original manufacturer.
Technical Support Site
If you encounter any installation or operational issues with your product, check the pertinent section of this
manual to see if the issue can be resolved by following outlined procedures.
Visit https://www.Vertiv.com/en-us/support/ for additional assistance.
Vertiv | Liebert® Drycooler Installer/User Guide
TABLE OF CONTENTS
1 Important Safety Instructions 1
2 Nomenclature and Components 7
2.1 Liebert Drycooler Model Number Nomenclature 7
2.2 Product Description and Features 8
2.2.1 Control Options 8
2.2.2 Typical System Configurations 9
3 Preinstallation andSitePreparationGuidelines 11
3.1 Shipping Dimensions and Weights 11
3.2 Planning Dimensions and Anchor Plans 13
3.3 Pump Packages 14
3.3.1 Expansion Tank 15
3.3.2 Compression Tank 15
4 Equipment Inspection and Handling 17
4.1 Packaging Material 17
4.2 Unit Storage 18
4.3 Handling Unit on the Skid 18
4.4 Unpacking the Unit—All Unit Sizes 19
4.5 Preparing 1 to 4 Fan Drycooler forMovingandInstallation 21
4.6 Preparing 6 and 8 Fan Drycoolers for Moving and Installation 25
4.7 Mounting the Drycooler 29
5 Piping 31
5.1 Guidelines for Expansion Tanks, Fluid-reliefValves,AirManagementandOtherDevices 36
5.2 Preparing to Fill the System 36
5.3 Filling the Drycooler System 38
6 Electrical Connections 39
6.1 Line Voltage Wiring 40
6.2 Low Voltage Control Wiring 46
7 Checklist for Completed Installation 49
7.1 Moving and Placing Equipment 49
7.2 Electrical Installation Checks 49
7.3 Piping Installation Checks 49
7.4 Other Installation Checks 49
8 Troubleshooting 51
9 Operation 53
9.1 Start-up Checklist 53
9.2 Startup: Drycooler Aquastat Settings 53
10 Maintenance 55
10.1 General Maintenance 56
10.2 Drycooler Cleaning 56
10.2.1 When to Clean the Drycooler Coil 56
Vertiv | Liebert® Drycooler Installer/User Guide | i
10.2.2 What to Use to Clean the Drycooler Coil 56
10.2.3 Cleaning the Drycooler Coil 56
11 Preventive Maintenance Checklist 59
Appendices 63
Appendix A: Technical Support and Contacts 63
Appendix B: Submittal Drawings 65
Vertiv | Liebert® Drycooler Installer/User Guide | ii
1 IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS
This manual contains important safety instructions that should be followed during the installation and maintenance of the
Liebert®Drycooler. 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 installation, operation and maintenance instructions and all applicable national and local building, electrical and
plumbing codes.
WARNING! Arc flash and electric shock hazard. Open all local and remote electric power-supply disconnect
switches, verify with a voltmeter that power is Off and wear appropriate, OSHA-approved personal protective
equipment (PPE) per NFPA 70E before working within the 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® controller 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 the controller. The factory-supplied disconnect switch is inside the
unit. The line side of this switch 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 electric shock. Can cause equipment damage, injury or death. Open all local and remote
electric power supply disconnect switches and verify with a voltmeter that power is off before working within
any electric connection enclosures. Service and maintenance work must be performed only by properly
trained and qualified personnel and in accordance with applicable regulations and manufacturers’
specifications. Opening or removing the covers to any equipment may expose personnel to lethal voltages
within the unit even when it is apparently not operating and the input wiring is disconnected from the
electrical source.
WARNING! Risk of electric shock. Can cause serious injury or death. 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 the Liebert® iCOM control. Open all local and remote electric power
disconnect switches and verify with a voltmeter that power is Off before working on any component of the
system.
WARNING! Risk of electrical fire and short circuit. Can cause property damage, injury or death. Select and
install the line side electrical supply wire and overcurrent protection device(s) according to the specifications
on the unit nameplate(s), per the instructions in this manual and according to the applicable national, state
and local code requirements. Use copper conductors only. Verify that all electrical connections are tight.
Unit-specific wiring diagrams are provided on each unit.
1 Importan t Safety In structions
1
WARNING! Risk of improper wire sizing/rating and loose electrical connections. Can cause overheated wire
and electrical connection terminals resulting in smoke, fire, equipment and building damage, injury or death.
Use correctly sized copper wire only and verify that all electrical connections are tight before turning power
On. Check all electrical connections periodically and tighten as necessary.
WARNING! Risk of improper wiring, piping, moving, lifting and handling. Can cause equipment damage,
serious injury or death. Installation and service of this equipment should be done only by qualified personnel
who have been specially-trained in the installation of air-conditioning equipment and who are wearing
appropriate, OSHA-approved PPE. See Table 3.1 on page11, and Table 3.2 on page13, for weights.
WARNING! Risk of improper moving, lifting, or handling of the unit. Can cause equipment damage, injury or
death. Read all of the following instructions and verify that all lifting and moving equipment is rated for the
weight of the unit before attempting to move, lift, remove packaging from or prepare the unit for installation.
Table 3.1 on page11, and Table 3.2 on page13, for weights.
WARNING! Risk of contact with high-speed rotating fan blades. Can cause serious injury or death. Open all
local and remote electric power-supply disconnect switches, verify with a voltmeter that power is off, and
verify that all fan blades have stopped rotating before working in the unit cabinet or on the fan assembly. If
control voltage is applied, the fan motor can restart without warning after a power failure. Do not operate the
unit with any or all cabinet panels removed.
CAUTION: Risk of unsecured strap ends with sharp edges flying uncontrollably in any direction when cut.
Can cause serious injury. Secure both ends of strap when cutting and wear OSHA-approved protective
headgear, gloves, and eye protection when working with the securing straps.
CAUTION: Risk of contact with hot surfaces. Can cause injury. Personal burn injury can be the result of
touching some electrical components that are extremely hot during unit operation. Allow sufficient time for
them to cool to a touch-safe temperature before working within the unit cabinet. Use extreme caution and
wear appropriate, OSHA-approved PPE when working on or near hot components.
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Vertiv | Liebert ® Drycooler Installer/U ser Guide
NOTICE
NOTICE
Risk of improper power-supply connection. Can cause equipment damage and loss of warranty coverage.
Prior to connecting any equipment to a main or alternate power source (for example: back-up generator
systems) for start-up, commissioning, testing, or normal operation, ensure that these sources are correctly
adjusted to the nameplate voltage and frequency of all equipment to be connected. In general, power-source
voltages should be stabilized and regulated to within ±10% of the load nameplate nominal voltage. Also, ensure
that no three-phase sources are single-phased at any time.
Risk of piping-system corrosion and freezing fluids. Can cause leaks resulting in equipment and expensive
building damage. Cooling coils and piping systems are at high risk of freezing and premature corrosion. Fluids
in these systems must contain an inhibitor to prevent premature corrosion.
The system coolant fluid must be analyzed by a competent fluid-treatment specialist before start up to
establish the inhibitor level and evaluated at regularly scheduled intervals throughout the life of the system to
determine the pattern of inhibitor depletion. The fluid complexity and variations of required treatment
programs make it extremely important to obtain the advice of a competent and experienced fluid-treatment
specialist and follow a regularly scheduled coolant-fluid system-maintenance program.
Fluid chemistry varies greatly as do the required additives, called inhibitors, that reduce the corrosive effect of
the fluids on the piping systems and components.
The chemistry of the coolant fluid used must be considered, because some sources may contain corrosive
elements that reduce the effectiveness of the inhibited formulation. Sediment deposits prevent the formation of
a protective oxide layer on the inside of the coolant system components and piping. The coolant fluid must be
treated and circulating through the system continuously to prevent the buildup of deposits and/or growth of
bacteria. Proper inhibitor maintenance must be performed to prevent corrosion of the system.
NOTICE
Consult fluid manufacturer for testing and maintenance of inhibitors.
Commercial-grade coolant fluid is generally less corrosive to the common metals of construction than water
itself. It will, however, assume the corrosivity of the coolant fluid from which it is prepared and may become
increasingly corrosive with use if not properly inhibited.
Vertiv recommends installing a monitored fluid-detection system that is wired to activate the automaticclosure of field-installed coolant-fluid supply and return shut-off valves to reduce the amount of coolant-fluid
leakage and consequential equipment and building damage. The shut-off valves must be sized to close-off
against the maximum coolant-fluid system pressure in case of a catastrophic fluid leak.
Risk of frozen pipes and corrosion from improper coolant mixture. Can cause water leaks resulting in
equipment and building damage.
When the drycooler, the cooling unit or piping may be exposed to freezing temperatures, charge the system
with the proper percentage of glycol and water for the coldest design ambient temperature. Automotive
antifreeze is unacceptable and must NOT be used in any glycol fluid system. Use only HVAC glycol solution
that meets the requirements of recommended industry practices. Do not use galvanized pipe.
1 Importan t Safety In structions
3
NOTICE
NOTICE
NOTICE
NOTICE
Risk of excessive coolant fluid pressure, improper piping material, and unsupported piping. Can cause piping
rupture, coolant fluid leaks and building and/or equipment damage.
To avoid the possibility of burst pipes, the system installer must supply and install a relief valve in the system.
Galvanized pipe must not be used in glycol systems. To help prevent piping failures, supply and return lines
must be supported such that their weight does not bear on the piping of the unit or pumps.
Risk of overheated pump seals. Can cause piping system damage, coolant fluid leaks, and substantial building
damage.
Do not run pumps without fluid in the system. Pump seals require fluid to keep them cool; running them without
fluid for any amount of time will damage the seals, which may cause a failure.
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.
Risk of a catastrophic water circuit rupture. Can cause expensive building and equipment damage.
Install shutoff valves in the supply and return water lines that automatically close if water is detected by the
leak detection system. The shutoff valves should be spring return and must be rated for a close-off pressure
that is the same as or higher than the supply water pressure. A monitored leak detection system should be
installed in the base of the unit or under the unit to actuate the shutoff valves immediately on a leak detection
signal.
NOTICE
Risk of no-flow condition. Can cause equipment damage.
Do not leave the water/coolant fluid-supply circuit in a no-flow condition. Idle fluid allows the collection of
sediment that prevents the formation of a protective oxide layer on the inside of tubes. Keep unit switched On
and water/coolant fluid-supply circuit system operating continuously.
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Vertiv | Liebert ® Drycooler Installer/U ser Guide
NOTICE
Risk of using the wrong type of glycol. Can cause piping damage, coolant fluid leaks, and catastrophic and
expensive building and equipment damage.
Do not use automotive antifreeze as it contains chemicals that can damage the piping system.
Typical inhibited formula ethylene glycol and propylene glycol are supplied with corrosion inhibitors and do
not contain a silicone anti-leak formula. Commercial ethylene glycol and propylene glycol, when pure, are
generally less corrosive to the common metals of construction than water itself. Aqueous solutions of these
glycols, however, assume the corrosivity of the water from which they are prepared and may become
increasingly corrosive with use when not properly inhibited.
1 Importan t Safety In structions
5
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Vertiv | Liebert ® Drycooler Installer/U ser Guide
2 NOMENCLATURE AND COMPONENTS
This section describes the model number for Liebert® Drycooler units and components.
2.1 Liebert Drycooler Model Number Nomenclature
Table 2.2 below, describes each digit of the model number.
Table 2.1 Liebert Drycooler Model Number Example
1 2 3 4 5 6 7 8 9 10
D D N T 3 5 0 A 4 8
Table 2.2 Drycooler Model-number Digit Definitions
Digit Description
Digit 1 - Disconnect Switc h
D = Disconnect switch designat or on unit s wi thout pump cont rols, see Digit 3., otherwi se blank.
Digit2 = Uni t Fami ly
D = Dry cooler
Digit 3 - P ump Cont rol
N = No pump c ontrol
S = Single pump contr ol
D = Dual pump cont rol
Digits 4 - Fan C ontrol
C = No fan cont rol
L = Main fan c ontrol
T = Fa n cycl ing
O = Fan cy cli ng and pump cont rol
S = Specia l-or der fan/pump cont rol
F = Fan speed contr ol
Digits 5, 6, 7 - Model Size
Digit 8 - Power Supply
P = 208/ 230V / 1ph / 60Hz
W = 200 /2 20V / 1ph / 50 Hz
Y = 208/ 230V / 3ph / 60 Hz
A = 460V / 3ph / 60H z
B = 575V / 3ph / 60Hz
M = 380/415V / 3ph / 50 Hz
Digits, 9 and 10 - Cir cuit ing
Blank for standar d cir cuit ing. See Table 5.3 on page34 and Table 5.4 on pag e35 for sta ndard and optiona l ci rcui ti ng.
2 Nomenclature and Components
7
2.2 Product Description and Features
The Liebert® Air-cooled, Direct-drive Drycooler is a low-profile, direct-drive propeller fan-type air-cooled unit. Constructed
with an aluminum cabinet and a copper-tube aluminum fin coil, the unit is quiet and corrosion resistant. All electrical
connections and controls are enclosed in an integral NEMA 3R rated electrical panel section of the drycooler.
Figure 2.1 Liebert® Three Fan Drycooler
2.2.1 Control Options
Fan Speed—DSF, DDF
Available only on single-fan standard drycoolers with integral pump controls. Fan speed control provides an infinite number
of speed variations on specially designed, single-phase, permanent split capacitor motor, by monitoring leaving fluid
temperature.
Fan speed control provides air delivery in direct proportion to heat rejection requirements of the system. The control is
adjustable to maintain the temperature of the fluid leaving the drycooler. Either of two temperature ranges can be fieldselected: 30 to 60°F (-1 to 16°C) for GLYCOOL™applications or 70 to 100°F (21 to 38°C) for glycol applications.
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Vertiv | Liebert ® Drycooler Installer/U ser Guide
Fan Cycling Control—DDNT, DSO, DDO
Available on all sizes of standard sound and Quiet-Line drycoolers. A thermostatic control cycles the fan on a single-fan
drycooler in response to leaving fluid temperatures. Two or more thermostats are employed on drycoolers with two or more
fans to cycle fans or groups of fans in response to leaving fluid temperatures. The thermostat setpoints are listed on the
factory-supplied schematic. They typically range from 35 to 45°F (2 to 7°C) for GLYCOOL applications and 65 to 75°F (18 to
24°C) for glycol applications.
Main Fan Control—DDNL
Available on all sizes of standard-sound and Quiet-Line drycoolers without pump controls. All fans run when an external
contact closure completes internal 24VAC circuit.
No Controls - DDNC
Available on all sizes of standard-sound and Quiet-Line drycoolers without pump controls. All fans are activated at full
speed when power is applied to the drycooler.
Pump Controls
Available on all Fan Speed and Fan Cycling Control drycoolers. Controls for pump(s) up to 7.5hp are built into the same
integral electric panel as the drycooler fan controls. Pump fuses, overload heaters and flow switch (dual pump control
models) are included with the Liebert® pump packages or must be field-supplied for field-supplied pumps.
Dual pump option—Provides controls for primary and standby pump. The flow switch senses loss of flow and switches to the
standby pump for continuous system operation in the event of a pump failure. An internal switch allows manual selection of
the lead/lag pump.
2.2.2 Typical System Configurations
The standard glycol-cooled precision air conditioning system includes these major components:
• indoor air conditioning unit with heat exchangers (refrigerant/glycol)
• glycol regulating valve
• outdoor air-cooled drycooler
• glycol pump(s)
• expansion/compression tank
• pump controls
• interconnection piping
• unit interlock control wiring
The piping general-arrangement drawings, listed in Table 2.3 on the next page, show single unit to drycooler loop
arrangement, multiple indoor units and multiple outdoor drycoolers using a dual pump package and on a common piping
loop. The drawings are included in the Submittal Drawings Contents on page65.
Additional field-supplied components, such as valves, expansion tank, strainers and flow or pressure switches are also shown
in the piping general-arrangement drawings. These components are necessary and should be included when designing a
system with one indoor and one outdoor unit on a piping loop or a system using multiple indoor and outdoor units on a
common piping loop. Larger systems may also benefit from an air separator (not shown).
2 Nomenclature and Components
9
Table 2.3 Piping General-arrangment Drawings
Document Number Title
DPN000895 Piping diagram, Liebert® DS, glycol, semi-hermetic compressor models
DPN000896 Piping diagram, Liebert®DS, water/glycol, scroll compressor models
DPN001430 Piping diagram, Liebert® DS, water/glycol, digital-scroll com pressor models
DPN001432 Piping diagram, Liebert® DS, GLYCOOL, digital-scroll com pressor models
DPN000897 Piping diagram, Liebert®DS, GLYCOOL, semi-hermetic compressormodels
DPN000898 Piping diagram, Liebert®DS, GLYCOOL, scroll compressor m odels
DPN002931 Piping diagram, Liebert® PDX with water/glycol
DPN002932 Piping diagram, Liebert® PDX with GLYCOOL
DPN003822 Typical piping arrangement with multiple drycoolers and multiple indoor units
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Vertiv | Liebert ® Drycooler Installer/U ser Guide
3 PREINSTALLATION ANDSITEPREPARATIONGUIDELINES
The unit dimensions, pipe-connection locations, and piping schematics are described in the submittal documents included
in the Submittal Drawings Contents on page65.
• Install the drycooler in a location offering maximum security and access for maintenance.
• Avoid ground-level sites with public access and areas prone to heavy snow or ice accumulations.
• Whenever interior building locations must be used, utilize a Piggyback drycooler. Contact your Vertiv sales
representative for more information.
• To ensure adequate air supply, we recommend that drycoolers be installed in an area with clean air, away from
loose dirt and foreign matter that might clog the coil, and away from steam, hot-air, or fume exhaust.
• Drycoolers must not be installed in a pit because discharge air is likely to be recirculated through the unit.
• Drycoolers should be located no closer than 3 ft (1m) from a wall, obstruction, or adjacent unit and avoid
locations where objects restrict the air-inlet free area.
• For roof installation, mount the drycooler on suitable curbs or other supports in accordance with local codes.
• The drycooler must be installed on a level surface to ensure proper glycol flow, venting and drainage.
• Allow adequate space for pump packages, expansion/compression tanks, piping and additional field-supplied
devices.
• When mounting pump packages, mount on level surface or suitable curbs that will allow cooling ventilation air
to enter from underneath the pump package frame and exit through the louvers.
• The drycooler must be installed in a vertical air-flow orientation to maintain NEMA 3R rating of electrical box.
The unit is CSA c-us Certified for vertical air flow only and has not been tested for any other orientation.
3.1 Shipping Dimensions and Weights
Table 3.1 Standard Drycooler Net Weights, Shipping Weights, Dimensions and Volume, Approximate
Domestic Packed Export Packed
No. of
Model
*D**033
*D**069 375 (17 0) 530 (240) 637 (289)
*D**092 395 (179) 550 (249) 657 (298)
*D**109 415 (188) 570 (259) 677 (307 )
*D**112 435 (197) 590 (268) 697 (316)
*D**139
*D**174 540 (245) 797 (362) 954 (433)
*D**197 580 (263) 837 (380) 994 (451)
*D**225 620 (281) 877 (398)
Dry Weight
Fans
lb (kg)
355 (161) 510 (231)
1
500 (227 ) 757 (343)
2
Weight Dimension (LxWxH) Volume Weight Dimension (LxWxH) Volume
lb. (kg) in. (cm) ft3(m3) lb. (kg.) in. (cm) ft3(m3)
617 (280)
62x36x63 (157x91x160) 81 (2.3)
914 (415)
102x36x63 (259x91x160) 134 (3.8)
1034
(469)
63x37x 64 (160x94x163) 86 (2.5)
103x37x64 (262x94x163) 141 (4.0)
3 Pr einst allation andS itePreparationGuideli nes
11
Table 3.1 Standard Drycooler Net Weights, Shipping Weights, Dimensions and Volume, Approximate (continued)
Domestic Packed Export Packed
No. of
Model
Fans
Dry Weight
lb (kg)
Weight Dimension (LxWxH) Volume Weight Dimension (LxWxH) Volume
lb. (kg) in. (cm) ft3(m3) lb. (kg.) in. (cm) ft3(m3)
*D**260
*D**310 795 (361) 1164 (528)
*D**350 855 (388) 1224 (555)
*D**352
735 (333) 1104 (501)
3
940 (426) 1401 (635)
142x36x63 (361x91x 160) 186 (5.3)
1282 (582)
1342
(609)
1402
(636)
1658 (752)
*D**419 1 020 (463) 1481 (672) 1738 (788)
*D**466 1050 (476) 151 1 (685)
4
182x36x63 (462x91x 160) 239 (6.7)
1768
(802)
*D**491 1100 (499) 1561 (708) 1818 (825)
*D**620
1780 (808) 2223 (1008)
6
*D**700 1 880 (854) 2323 (1054)
*D**790
*D**880 2330 (1058) 2895 (131 3)
2250 (1022) 2815 (1277 )
8
142x36x94 (361x91x239) 2 78 (7.9)
182x36x94 (462x91x2 39)
356
(10.0)
2948
(1337)
2998
(1360)
3048
(1383)
3769
(1710)
3849
(1746)
143x37 x64 (363x94x163) 1 96 (5.6)
183x37x64 (465x94x163) 251 (7.0)
143x37 x95 (363x94x241) 291 (8.2)*D**650 1830 (831) 2273 (1031)
183x37x95 (465x94x241) 372 (10.5)
*D**940 2430 (1103) 2995 (1359)
12
3949
(1791)
Vertiv | Liebert ® Drycooler Installer/U ser Guide
Table 3.2 Quiet-Line Drycooler Net weights, Shipping Weights, DimensionsandVolume,Approximate
Domestic Packed Export Packed
No. of
Model
Fans
Dry Weight
lb (kg)
Weight Dimension (LxWxH) Volume Weight Dimension (LxWxH) Volume
lb. (kg) in. (cm) ft3(m3) lb. (kg.) in. (cm) ft3(m3)
*D**040
*D**060 415 (188) 570 (259) 677 (307)
*D**080
*D**121 580 (263) 837 (380) 994(451)
*D**158
*D**178 855 (388) 1224 (555) 1402 (636)
*D**205
*D**248 1020 (463) 1481 (672) 1 738 (788)
*D**347
*D**356 1880 (854)
*D**453
*D**498
375 (17 0) 530 (240)
1
500 (227 ) 757 (343)
2
735 (333) 110 4 (501)
3
940 (426) 1 401 (635)
4
1780 (808)
6
2250
(1022)
8
2430
(1103)
2223
(1008)
2323
(1054)
2815 (1277)
2995
(1359)
637 (289)
62x36x63 (157x91x160) 81 (2.3)
914 (415)
102x36x63 (259x91x1 60) 134 (3.8)
1282 (582)
142x36x63 (361x91x160) 186 (5.3)
1658 (752)
182x36x63 (462x91x160) 239 (6.7)
2948
(1337)
142x36x94 (361x91x239) 278 (7. 9)
3048
(1383)
3769
(1710)
182x36x94 (462x91x239) 356 (10.0)
3949 (1791)
63x37x 64 (160x94x163) 86 (2.5)*D**057 395 (179) 550 (249) 657 (298)
103x37x64 (262x94x163) 141 (4.0)*D**111 540 (245) 797 (362) 954 (433)
143x37 x64 (363x94x163) 196 (5.6)*D**173 795 (361) 1 164 (528) 1342 (609)
183x37x64 (465x94x163) 251 (7. 0)
143x37 x95 (363x94x241) 291 (8.2)
183x37x95 (465x94x241) 372 (10.5)
3.2 Planning Dimensions and Anchor Plans
The unit dimensions are described in the submittal documents included in the Submittal Drawings Contents on page65.
The following table lists the relevant documents by number and title.
Table 3.3 Dimension Planning Drawings
Document Number Title
DPN000274 Cabinet and Anchor dimensions for 1to4f an drycoolers
DPN000280 Cabinet and Anchor dimensions for 1 to4 fan Quiet-Line drycoolers
DPN000721 Cabinet and Anchor dimensions for 6to8 fa n standard and Quiet-Line drycoolers
3 Pr einst allation andS itePreparationGuideli nes
13
3.3 Pump Packages
The planning dimensions, electrical power-supply requirements, piping connections, and electrical connections are
described in the submittal documents included in the Submittal Drawings Contents on page65.
The following table lists the relevant documents by number and title.
Table 3.4 Drycooler Pump Drawings
Document Number Title
DPN000329 Pump Electrical Power Data and Piping-connection sizes.
DPN000278 Single-pump Piping connection locations and dimensional data
DPN000328 Dual-pump Piping connection locations and dimensional data
Figure 3.1 Pump curve, 60 Hz
NOTE: Higher-capacity pumps are available. Please contact your local sales rep for more information.
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Vertiv | Liebert ® Drycooler Installer/U ser Guide
3.3.1 Expansion Tank
The expansion tank, included in a standard pump package, has an internal volume of 8.8gal.(33l) and a maximum pressure
of 100psi(690kPa).
The tank is sized for a typical “open” system with a fluid volume of less than 75gal.(280l). When used in a “closed” system,
volumes of up to 140gal.(530l) can be accommodated. We recommend use of a field-supplied safety-relief valve for
systems “closed” to atmospheric venting. Other piping accessories for filling, venting, or adjusting the fluid in the system,
are recommended, but not included.
The planning dimensions and general arrangement are described in the submittal documents included in the Submittal
Drawings Contents on page65.
The following table lists the relevant documents by number and title.
Table 3.5 Drycooler Pump and Tank Drawings
Document Number Title
DPN004183 Expansion Tank General Arrangement and Dimensional Data
3.3.2 Compression Tank
The compression tank for glycol/GLYCOOL™ systems includes:
• Tank
• Airtrol fitting
• Sight glass with shut-off valves
• 50-psi relief valve
• Drain valve
Mounting brackets are not included. Maximum design pressure 125psig.
The planning dimensions and general arrangement are described in the submittal documents included in the Submittal
Drawings Contents on page65.
The following table lists the relevant documents by number and title.
Table 3.6 Drycooler Pump and Tank Drawings
Document Number Title
DPN003898 Compression Tank General Arrangement and Dimensional Data
3 Pr einst allation andS itePreparationGuideli nes
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Vertiv | Liebert ® Drycooler Installer/U ser Guide
4 EQUIPMENT INSPECTION AND HANDLING
WARNING! Risk of improper moving, lifting, or handling of the unit. Can cause equipment damage, injury or
death. Read all of the following instructions and verify that all lifting and moving equipment is rated for the
weight of the unit before attempting to move, lift, remove packaging from or prepare the unit for installation.
SeeTable 3.1 on page11, and Table 3.2 on page13
CAUTION: Risk of contact with sharp edges, splinters, and exposed fasteners. Can cause injury. Only
properly trained and qualified personnel wearing appropriate, OSHA-approved PPE should attempt to move,
lift, remove packaging from or prepare the unit for installation.
NOTICE
Risk of improper lifting. Can cause equipment damage. Make sure that the spreader bars are wider than the
unit. If the spreader bars are too short, the slings may crush the unit.
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. Keep the unit upright, indoors and protected from dampness, freezing temperatures
and contact damage.
Upon arrival of the unit and before unpacking:
• Verify that the labeled equipment matches the bill of lading.
• Carefully inspect all items for visible or concealed damage.
• Report damage immediately to the carrier and file a damage claim with a copy sent to Vertiv or to your sales
representative.
Equipment Recommended for Handling the Unit:
• Forklift
• Lift beam
• Slings
• Spreader bars
• Crane
4.1 Packaging Material
All material used to package this unit is recyclable. Please save for future use or dispose of the material
appropriately.
4 Eq uipment Ins pection an d Handlin g
17
4.2 Unit Storage
Store the drycooler in the original packaging in an area protected from excessive dirt, debris and contact damage until final
installation
4.3 Handling Unit on the Skid
Transport unit using a fork lift or a crane with sling and spreader bars.
Using a forklift
NOTICE
Risk of improper forklift handling. Can cause unit damage.
Keep the forklift tines level and at a height that will fit under the skid.
• Make sure the forks (if adjustable) are spread to the widest allowable distance to still fit under the skid.
• Type of forklift used will depend on the terrain the unit is to be moved across during handling.
• Minimum forklift fork length:
• for 1 fan and two fan units—48in (1219mm)
• for 3 fan and 4 fan units—72in. (1829mm)
• for 6 fan units—72 in. (1829 mm)
• for 8 fan units—96 in. (2438 mm)
• When moving the packaged unit, do not lift it any higher than 6in. (152mm). If the unit must be lifted higher
than 6-in. (152mm), you must exercise great care, and no one may be closer than 20ft(6m) to the lift point.
• We recommend lifting one end off the ground no more than 6in.(152mm)and using the forklift to push or pull
the unit.
Figure 4.1 Forklift position with 1 to 8fan units
Using a Crane
• We recommend using slings rated for the unit weight.
• Spreader bars must be used for sling stability and to keep the slings from pressing against the unit. Make sure
spreader bars are wider than the unit.
• Place the slings near the ends of the unit, under the top deck boards of the skid.
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Vertiv | Liebert ® Drycooler Installer/U ser Guide
4.4 Unpacking the Unit—All Unit Sizes
Refer to Figure 4.2 on the next page, for the following steps:
1. For domestic packaging:
• Remove the fastener clamps from the top and sides of the unit.
• Remove all screws and washer from the wooden fencing.
• Remove the fence
–or–
For export packaging, remove the crate.
2. Carefully remove the steel straps securing the unit to the skid.
CAUTION: Risk of unsecured strap ends with sharp edges flying uncontrollably in any direction when cut.
Can cause serious injury. Secure both ends of each strap when cutting and wear OSHA approved protective
headgear, gloves and eye protection when working with the securing straps.
3. Set the legs aside, but keep accessible.
• Depending on the number of fans, more or less steel straps may be removed at this step.
4 Eq uipment Ins pection an d Handlin g
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Figure 4.2 Removing Protective Material
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Vertiv | Liebert ® Drycooler Installer/U ser Guide
4.5 Preparing 1 to 4 Fan Drycooler forMovingandInstallation
The following procedure is one recommended method for removing a unit from the shipping skid. Other methods may be
used, provided that they are safe for personnel, the unit and equipment.
1. Attach legs to the unit at indicated locations, using the fasteners provided with the legs, Figure 4.3 below.
• Recommended tools for attachment is a 5/8” socket and ratchet.
• More legs may be available for installation than are shown. This will depend on the unit type and number
of fans. Refer to the appropriate planning-dimensions drawing in Submittal Drawings Contents on
page65, for the number of legs on your unit.
Figure 4.3 Attaching Legs to 1 to 4 Fan Drycoolers
4 Eq uipment Ins pection an d Handlin g
21
2. Place slings around the unit between the unit and the top deck boards of the skid as shown in Figure 4.4
below:
• 1 fan, 2 fan and 3 fan units: against the inside of the attached legs.
• 4 fan units: against the outside of the attached eye bolts.
3. Use spreader bars, a lift beam and a crane to lift the unit off the skid. Make sure spreader bars are wider than
the unit to prevent crushing force.
NOTICE
Risk of improper lifting. Can cause equipment damage. Make sure that the spreader bars are wider than the
unit. If the spreader bars are too short, the slings may crush the unit.
Figure 4.4 Securing Slings to 1 to 4 Fan Drycoolers for Lifting off Skid
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Vertiv | Liebert ® Drycooler Installer/U ser Guide
4. Lift the unit 24" (610mm) off the top deck of the skid.
5. Remove the skid from under the unit.
6. To rotate the unit, a mechanized method is recommended, but if one is not available, use a minimum of four
properly-protected individuals to rotate the elevated unit 90 degrees so the unit legs are pointing toward the
ground, Figure 4.5 below.
7. Set the upright unit on the ground so the legs support unit weight.
8. Remove the straps from around unit.
Figure 4.5 Rotate and Set Drycooler on Ground or Level Surface
4 Eq uipment Ins pection an d Handlin g
23
9. Refer to Figure 4.6 below, to attach rigging for lifting.
Spreader bars are still required. Make sure that the spreader bars are wider than the unit.
• 1 fan, 2 fan and 3 fan units: Route the straps through the large holes in the side of the legs.
• 4-fan units: Secure straps or chains to the eye bolts on top of the unit.
NOTICE
Risk of improper lifting. Can cause equipment damage. Make sure that the spreader bars are wider than the
unit. If the spreader bars are too short, the slings may crush the unit.
The unit is ready to be lifted and moved to its installation location.
Figure 4.6 Rigging to Lift 1 to 4 Fan Drycoolers
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Vertiv | Liebert ® Drycooler Installer/U ser Guide
4.6 Preparing 6 and 8 Fan Drycoolers for Moving and Installation
The following procedure is one recommended process for removing a unit from the shipping skid. Other methods may be
used, provided that the methods are safe for personnel, the drycooler and equipment.
1. Refer to Figure 4.7 below, to attach the legs to the higher side of the unit:
• Use four (4) fasteners per leg. Fasteners are provided with the legs.
• Recommended tools for attachment is a 5/8” socket and ratchet.
• More legs may be required for installation than are shown. This will depend on the unit type and number
of fans. Refer to the appropriate planning-dimensions drawing in Submittal Drawings Contents on
page65, for the number of legs on your unit.
Figure 4.7 Attach Legs to Higher side of 6 or 8 Fan Drycooler
4 Eq uipment Ins pection an d Handlin g
25
2. Attach slings or chains to the unit lift rails as shown in Figure 4.8 below
• Mechanically lower the unit in order to rest on the attached legs.
• Make sure not to damage the opposite side of the unit.
Figure 4.8 Use Sling to Lower Side with Legs Attached
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Vertiv | Liebert ® Drycooler Installer/U ser Guide
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