Vertiv Liebert DSE060 Installer/user Manual

Liebert®

DSE™ PackagedSolution
ThermalManagementSystem

Installer/User Guide

60-kW (15-ton)Capacity

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.VertivCo.com/en-us/support/ for additional assistance.

Vertiv |Liebert® DSE060™Installer/User Guide

TABLE OF CONTENTS

1 Important Safety Instructions 5

2 Nomenclature and Components 9

2.1 Liebert DSE060 Packaged Solution Configuration-number Nomenclature 9

2.2 Component Location 12

2.3 Air-flow Configurations 12

3 Pre-installation PreparationandGuidelines 13

3.1 Planning Dimensions 14

3.2 Connections and System Setup 14

3.2.1 Electrical Connections 14

3.2.2 Evaporator Condensate-drain Connection 14

3.3 Operating Conditions 16

3.3.1 Cooling 17

3.4 Unit Weights 17

4 Equipment Inspection and Handling 19

4.1 Rigging to Lift the Unit 20

4.2 Using Forklift to Install the Unpackaged Unit 21

5 Electrical Field Connections 23

6 Checklist for Completed Installation 27

6.1 Moving and Placing Equipment 27

6.2 Electrical Installation Checks 27

6.3 Other Installation Checks 27

6.4 BMS and Sensor Installation Checks 28

7 Initial Start-up Checks andCommissioningProcedure forWarrantyInspection 29

8 Maintenance 31

8.1 Service/Maintenance Access to the Evaporator Compartment 32

8.2 Filters 32

8.2.1 Filter-replacement 32

8.3 Evaporator Blower Drive System—EC Fans 34

8.3.1 Protective Features 34

8.3.2 Fan Impellers and Bearings Maintenance 35

8.3.3 Fan Assembly Troubleshooting 35

8.3.4 Removing Evaporator EC Fans 39

8.4 Electronic Expansion Valve (EEV) Maintenance 41

8.5 Compressor Maintenance 42

8.5.1 Compressor Oil 42

8.5.2 Rotalock Valve 42

8.5.3 Replacement Compressors 43

8.5.4 Compressor Motor Burnout 43

8.5.5 Unloading Solenoid(s) on a Digital-scroll Compressor 43

8.5.6 Replacing the Compressor 43

Vertiv | Liebert® DSE060™ Installer/User Guide | 3

8.6 Evaporator Coil 44

8.7 General Condenser Maintenance 44

8.8 Condenser Cleaning 44

8.8.1 When to Clean the Condenser Coil 44

8.8.2 What to Use to Clean the Condenser Coil 45

8.8.3 Cleaning the Condenser Coil 45

8.8.4 Cleaning the Condenser Fan 46

8.9 Replacing the Condenser Fan 46

8.9.1 Verifing the Fan Address 53

8.10 Replacing the Premium-efficiency Control Board 57

8.10.1 Preparing to Replace the Board 57

8.10.2 Installing the Replacement Board 59

8.11 Pumped-refrigerant Economizer (PRE) 60

9 Preventive Maintenance Checklist 61

Appendices 67

Appendix A: Technical Support and Contacts 67

Appendix B: Submittal Drawings 69

Vertiv | Liebert® DSE060™ Installer/User Guide | 4

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®DP060. 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 on the exterior of the enclosure. 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. Open all local and remote
electric power supply disconnect switches and verify with a voltmeter that power is off before
working within the component electric-connection enclosures. Fan-motor controls can
maintain an electric charge for 10 minutes after power is disconnected. Wait 10 minutes after
power is verified as off before working within the fan electric control/connection enclosures.

1 Important Safety Instructions

5

WARNING! Risk of over-pressurization of the refrigeration system. Can cause explosive
discharge of high-pressure refrigerant, loss of refrigerant, environmental pollution, equipment
damage, injury, or death. This unit contains fluids and gases under high pressure. Use extreme
caution when charging the refrigerant system. Do not pressurize the system higher than the
design pressure marked on the unit's nameplate.

WARNING! Risk of pressurized doors flying open or slamming closed suddenly. Can cause
serious injury. Do not attempt to open doors while fans are running. Do not turn on fans with
doors open. Before opening the door, open all local and remote electric power supply
disconnect switches, verify with a voltmeter that power is off, and verify that all fans have
stopped rotating. Do not leave unsecured objects in the fan's bay after any maintenance
operation.

WARNING! Risk of contact with flying objects. Can cause serious injury or death. Do not leave
unsecured objects or tools in the fan's bay after performing maintenance operations. Re-install
all panels before starting up this unit after maintenance is performed.

WARNING! Risk of very heavy, 250-lb (113.4-kg) condenser fan modules and 125-lb (57-kg)
evaporator fan modules dropping downward suddenly. Can cause injury or death.
Support fan modules before removing mounting hardware. Use caution to keep body parts out
of the fan modules pathway during repositioning. Only properly trained and qualified personnel
should work on this equipment.

WARNING! Risk of improper moving. Can cause equipment damage, injury or death. Use only
lifting equipment that is rated for the unit weight by an OSHA-certified rating organization. The
center of gravity varies depending on the unit size and selected options. The slings must be
equally spaced on either side of the center of gravity indicator.
Unit weights are listed in Table 3.3 on page17. Use the center of gravity indicators on the unit
to determine the position of the slings.

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.

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.

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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.

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.

CAUTION: Risk of contact with hot surfaces. Can cause injury. The compressor, refrigerant
discharge lines, fan motor, and some electrical components 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.

CAUTION: Risk of contact with hot surfaces. Can cause burn injury. The EC fans and
electronics housing are extremely hot during operation. Allow sufficient time for them to cool
to a touch-safe temperature before handling. Use extreme caution and wear appropriate,
OSHA-approved PPE when replacing or performing maintenance on the EC fans.

CAUTION: Risk of improper moving, lifting and handling. Can cause equipment damage or
injury. Only properly trained and qualified personnel should work on this equipment. Fan
modules weigh in excess of weigh in excess of 125lb (57kg). Use proper lifting techniques and
wear appropriate, OSHA-approved PPE to avoid injury and dropping the fan module during
removal. Equipment used in handling/lifting, and/or installing the fan assembly must meet
OSHA requirements. Use handling/lifting equipment rated for the weight of the fan assembly.
Use ladders rated for the weight of the fan assembly and technicians if used during installation.
Refer to handling/lifting, and/or installation equipment operating manual for manufacturer's
safety requirements and operating procedures.

CAUTION: Risk of exposure to harmful noise levels. Can cause hearing injury or loss.
Depending on the installation and operating conditions, a sound pressure level greater than
70dB(A) may arise. Take appropriate technical safety measures. Operating personnel must
wear appropriate, OSHA-approved PPE and observe all appropriate hearing-protection safety
requirements.

1 Important Safety Instructions

7

NOTICE

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 oil contamination with water. Can cause equipment damage.

Liebert®DP060 systems require the use of POE (polyolester) oil. POE oil absorbs water at a
much faster rate when exposed to air than previously used oils. Because water is the enemy of
a reliable refrigeration system, extreme care must be used when opening systems during
service. If water is absorbed into the POE oil, it will not be easily removed and will not be
removed through the normal evacuation process. If the oil is too wet, it may require an oil
change. POE oils also have a property that makes them act as a solvent in a refrigeration
system. Maintaining system cleanliness is extremely important because the oil will tend to
bring any foreign matter back to the compressor.

Risk of improper operation in high-humidity conditions. Can cause unit damage and water
carryover.

The Liebert® DP060 operates only as a sensible cooling unit and does not provide
dehumidification.

NOTE: The Liebert® cooling unit has a factory-installed high pressure safety switch in the high-side
refrigerant circuit.

Agency Listed

Standard 60-Hz units are CSA Certified to the harmonized U.S. and Canadian product safety standard
CSA C22.2 No 236/UL 1995 for “Heating and Cooling Equipment” and are marked with the CSA c-us logo.

8

Vertiv | Liebert® DSE060™ Installer/User G uide

2 NOMENCLATURE AND COMPONENTS

This section describes the configuration number for Liebert® DP060 units and components.

2.1 Liebert DSE060 Packaged Solution Configuration-number Nomenclature

The following tables describe each digit of the 40-digit DP060 configuration number. The 14-digit model
number consists of the first 10 digits and last 4 digits of the configuration number.

Table 2.1 DSE060 Configuration-number Digits 1 to 10 Example

Configuration -number Digits 1 to 10 = first 1 0 digits of 14-digit model number

1 2 3 4 5 6 7 8 9 10

D P 0 6 0 T P 1 A D

Table 2.2 DSE060 Configuration-number Detail Digits 11 to 21 Example

Configuration-number Detail Digits 1 1 to 21

11 12 13 14 15 16 17 18 19 20 21

0 2 0 8 1 6 L D B 0 P

Table 2.3 DSE060 Configuration-number Detail Digits 22 to 36 Example

Configuration-number Detail Digits 22 to 36

22 23 24 25 26 27 28 29 30 31 32 33 34 35 36

0 A A 1 0 0 0 0 0 0 0 0 0 0 0

Table 2.4 DSE060 Configuration-number
Digits37to40Example

Configuration -number Digits 37 to 40 = last 4 d igits of 14-digit model number

37 38 39 40

# # # A

Table 2.5 DSE060 Packaged Solution Configuration-number Digit Definitions

Digit Description

Digits 1 and 2 = Product Family

DP = Liebert® Packaged DSE

Digit 3 to 5 = Cooling Capacity, kW

Nominalsensible capacity, kW

Digit 6 = Air Discharge

T = Perimeter, top inlet/front supply

Digit 7 = System Type

P = Air-cooled, EconoPhase ready

2 Nomenclature and Components

9

Table 2.5 DSE060 Packaged Solution Configuration-number Digit Definitions (continued)

Digit Description

Digit 8 = Air-flow (Fan Type)

1 = EC plug fans

Digit 9 = Power Supply

A = 460V/ 3ph / 60Hz

B = 575V / 3ph / 60Hz

C = 208V/ 3ph/ 60Hz

D = 230V / 3ph / 60Hz

Digit 10 = Cooling System

D = Digital scroll, R-410A

Digit 11 = Humidifier

0 = None

Digit 12 = Display

2 = Liebert® iCOM HighDefinition

Digit 13 = Options

0 = None

Digit 14 = Air Filter

8 = MERV 8, 4-in.

9 = MERV 11, 4-in.

Digit 15 = CoilOption

1 = Non-coated coils, evaporator and condenser

Digit 16 = Enclosure Option

6 = Standard color, pebble-gray

Digit 17 = High-voltage option

L = Locking disconnect

6 = Dual disconnect with reversing starter

Digit 18 = Option packages

D = Low-voltage terminal package + Remote humidifier contact

Digit 19 = Monitoring

B = Base Comms & Connectivity

Digit 2 0 = Sensors

0 = None

Digit 2 1 = Packaging

P = Domestic

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Table 2.5 DSE060 Packaged Solution Configuration-number Digit Definitions (continued)

Digit Description

Digit 2 2 = Controls

0 = None

S = Quick-start and Capacitive buffer (contact the factory)

Digit 2 3 =EconoPhase

A = Standard capacity

Digit 2 4 = Condenser Coil

A = Standard ambient condenser

Digit 2 5 = 120-V Options

1 = 120V Utility Power, Customer-supplied

T = 120-V utilitypower from main-unit power supply

Digit 2 6 = Option

0 = No power meter

P = Power meter (Contact the factory)

Digit 2 7 = Option

0 = None

Digit 2 8 = Option

0 = None

Digit 2 9 = Condensate Pump

0 = None

Digit 30 to 36

0 = Placeholder

Digit 37 to 39 = Factory Configuration Number

Digit 40 = Configuration Code

A = No SFA

S = SFA

2 Nomenclature and Components

11

2.2 Component Location

The unit component locations are described in the submittal documents included in the Submittal

Drawings on page69.

The following table lists the relevant documents by number and title.

Table 2.6 Component-location Drawings

Document Number Title

DPN004597 Component Location, Perimeter Unit

2.3 Air-flow Configurations

Table 2.7 Perimeter unit air-flow schematic and duct connection

Document Number Title

DPN004598 Airflow Schematic, Perimeter Unit

DPN004599 Evaporator Ducting DimensionalData

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3 PRE-INSTALLATION PREPARATIONANDGUIDELINES

NOTE: Before installing unit, determine whether any building alterations are required to run wiring and
ductwork. Follow all unit dimensional drawings and refer to the submittal engineering dimensional
drawings of individual units for proper clearances.

Refer to DSE060 Packaged Solution Configuration-number Digit Definitions (continued) on page11, and
submittal drawings to determine the type of system being installed and anticipate building alterations
and ductwork needed.

The unit and anchor dimensions are described in the submittal documents included in the Submittal

Drawings on page69.

• Verify that mounting surface/roof top is level, solid and sufficient to support the unit. See

DP060 unit weights on page17, for unit weights.

• Verify that the support structure for the unit (concrete or other type) has a flat, regular
surface and is adequate to support the unit operating weight.

• Verify that adequate water-control/drain system is in place per local code. Refer to the
appropriate submittal drawing, listed in Dimension Planning Drawings on the next page, for the
condensate drain-line location and connection size.

• Verify that the high-voltage electric-supply lines are adequately sized based on the electrical
specification on the unit's name plate and meet local code.

• Verify that the utility electric-supply lines (lights and outlet) are adequately sized and meet
local code.

• Verify that all control and communication wiring are properly routed to the unit control panel
and meet local code.

• Confirm that the conditioned space has a proper envelope and vapor barrier.

• Handle outside air and humidity control externally to the Liebert® DP060 unit. The DP060
does not control humidity and is not intended to handle outside air.

• Allow at least the minimum recommended clearances for maintenance and service. See the
appropriate submittal documents for dimensions in Submittal Drawings on page69

• Ensure that there is no obstruction when installing ductwork connections and transitions to
minimize friction losses and turbulence.

• Verify that all duct joints are sealed to prevent air leakage or water penetration.

3 Pre-installation PreparationandGuidelines

13

3.1 Planning Dimensions

The unit and anchor dimensions are described in the submittal documents included in the Submittal

Drawings on page69.

The following table lists the relevant documents by number and title.

Table 3.1 Dimension Planning Drawings

Document Number Title

DPN004600 Cabinet and Anchor DimensionalData

DPN004599 Evaporator Ducting DimensionalData

DPN004601 Condensate-drain Access and Location

DPN004602 Evaporator Compartment Service Area

DPN004756 Installation andService Clearance for Multiple Units

3.2 Connections and System Setup

3.2.1 Electrical Connections

• Three-phase electrical service is required for all models. Electrical service must conform to
national and local electrical codes. See Electrical Field Connections on page23, for the details.

3.2.2 Evaporator Condensate-drain Connection

Connect the condensate-drain line to an adequate water-drain system. See 3.2 above, for the connection
on the unit. Observe the following requirements and Figure 3.2 on page16, when installing and routing
the drain line:

• Insulate the field-supplied condensate-drain piping with heat trace so it will not freeze.

• The line must be the full size of the drain connection. The connection port is 3/4-in. pipe with
CPVC 3/4-in. FPT fitting.

• Slope the drain line continuously away from the unit, and pitch the drain line a minimum of 1/8­in. (3.2-mm) per 1ft (305mm) toward the drain.

• The line must be made of a material that is suitable for draining water and be rigid enough that
it does not sag between supports, which creates unintentional traps.

• The drain line must comply with all applicable codes.

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Figure 3.1 Condensate Drain Location

Item Description

1 Condensate-drain connection

3 Pre-installation PreparationandGuidelines

15

Figure 3.2 Correct and Incorrect condensate-drain line

Table 3.2 Evaporator Drain-line Figure Descriptions

Item Description

1 Correct drain-line installation

2 Incorrect drain-line installation

3 DSEunit

4 Internal drain

5 Externaldrain

6 Continuousdownward slope

7 External trap. Do not trap externally.

8 External traps, although unintentional. Lines must be rigidenough not to bow over top of other objects.

3.3 Operating Conditions

The Liebert® DP060 must supply air to a conditioned space within the operating envelope that ASHRAE
recommends for data centers. Operating the DP060 outside of this envelope can decrease equipment
reliability. Refer to ASHRAE’s publication, “Thermal Guidelines for Data Processing Environments.”

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3.3.1 Cooling

The recommended maximum return-air temperature is 105°F (40°C) and maximum dew point is 59°F
(15°C). The recommended minimum return-air temperature setpoint Dry Bulb is 85°F (29°C).

Operating outside this envelope can decrease equipment reliability.

NOTE: If running in supply-air control, the minimum supply-air setpoint is 68°F(20°C), and the
maximum supply air temperature is 80°F (27°C).

NOTE: When running above 77°F (25°C) supply air temperature, the superheat readings on the
refrigeration circuits may be higher than 7.2°F(–14°C). The EEVs will run out of stroke and limit mass
flow, which will result in higher than normal superheat.

3.4 Unit Weights

Table 3.3 DP060 unit weights

Model Weight, lb (kg)

DP060 Perimeter 5,500 (2,495)

3 Pre-installation PreparationandGuidelines

17

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4 EQUIPMENT INSPECTION AND HANDLING

SAFETY INFORMATION

WARNING! Risk of improper moving. Can cause equipment damage, injury or death. Use only
lifting equipment that is rated for the unit weight by an OSHA-certified rating organization. The
center of gravity varies depending on the unit size and selected options. The slings must be
equally spaced on either side of the center of gravity indicator.
Unit weights are listed in DP060 unit weights on page17.

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.

• 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.

• Always refer to the location of the center-of-gravity indicators when lifting the unit, see Center-

of-Gravity Indicators on the next page.

Equipment Recommended for Handling the Unit:

• Lift beam

• Slings

• Spreader bars

• Shims and blocks

4 Equipment Inspection and Handling

19

Figure 4.1 Center-of-Gravity Indicators

Item Description

1 Center-of-gravity marker

4.1 Rigging to Lift the Unit

See Lugs to attach rigging to a perimeter-unit configuration on the facing page, for the location of the
lifting lugs on the unit, and use spreader bars and/or shimmed blocks to prevent damage to the unit.

• Unit must remain level when lifted to prevent damage to internal equipment.

• Do not place unit directly on the ground. If the unit must be set down, use shims or blocks for
leveling and to keep unit off the ground.

Before lifting or moving, clear the area of all unnecessary personnel. Clear the area of any debris and
unrelated tools or foreign objects.

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Figure 4.2 Lugs to attach rigging to a perimeter-unit configuration

Item Description

1 Lugs to attach rigging. Typical both sides.

4.2 Using Forklift to Install the Unpackaged Unit

The forklift must be rated for at least 5,500 lb (2495 kg) and the fork length can be no less than 8ft
(2.4m). See Typical Center Line of Fork Pockets on the next page, for the location of fork pockets. The
unit can be lifted from either side.

Place protective material between the fork mast and unit to prevent external damage to the unit.

4 Equipment Inspection and Handling

21

Figure 4.3 Typical Center Line of Fork Pockets

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5 ELECTRICAL FIELD CONNECTIONS

Three-phase electrical service is required for all models. Electrical service must conform to national and
local electrical codes. Refer to equipment nameplate regarding wire size and circuit protection
requirements. Refer to the appropriate submittal drawing, listed in Electrical Field-connection Drawings
on page25, for electrical service entrances into unit

A manual electrical disconnect switch should be installed in accordance with local codes and distribution
system. Consult local codes for external disconnect requirements.

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 on the exterior of the enclosure. 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 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 wiring damage, short circuits and electric shock. Can cause overheated
wiring, smoke, fire, activation of fire suppression systems and EMS personnel and equipment,
building and equipment damage, injury or death. Insert CSA certified or UL listed bushings into
holes and or knockouts used to route wiring through metal panels to protect the wire
insulation from contact with sheet metal edges.

5 Electrical FieldConnections

23

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 improper electrical connection of three-phase input power. Can cause backward
compressor rotation and unit damage. Service technicians should use a gauge set on the
system during the initial start up to verify that the three-phase power is connected properly.
The EC fans are not a reliable indicator of proper connection. The blowers will rotate the same
direction, regardless of the three-phase power input. Three-phase power must be connected
to the unit line voltage terminals in the proper sequence so that the compressors rotate in the
proper direction. Incoming power must be properly phased to prevent compressors from
running backward. We recommend checking the unit’s phasing with proper instrumentation to
ensure that power connections were made correctly. We also recommend verifying discharge
and suction pressures during start up to ensure that the compressors are running in the
correct direction.

NOTICE

Risk of improper electrical supply connection. Can cause equipment damage. See transformer
label for primary tap connections. Installer will need to change transformer primary taps if
applied unit voltage is other than pre-wired tap voltage.

NOTE: Seal openings around electrical connection to prevent water leakage. Connections must be
water-tight. Failure to do so risks damage to the outdoor unit.

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Vertiv | Liebert® DSE060™ Installer/User G uide

The unit requires two separate power-supply connections:

• A 3-phase; 208-V, 230-V, 460-V. or 575-V; 60-Hz, power supply to the DP060 unit electrical
enclosure.

• A separate 120-V power feed to the unit electrical enclosure (for light switches/convenience
outlet).

Table 5.1 Electrical Data—DP060, 60Hz

Unit V oltage Rating

208V, 3ph, 60Hz

230 V, 3ph, 60Hz

460 V, 3ph, 60 Hz

575 V, 3ph, 60 Hz

standard ambient condenser:

Total system with

FLA 70.1 76.4

WSA 84.4 90.6

OPD 125 125

FLA 66.9 79.4

WSA 79.8 92.3

OPD 125 125

FLA 33.2 39.4

WSA 39.6 45.8

OPD 60 60

FLA 27.5 33.8

WSA 33.0 39.3

OPD 50 60

without 120-V transformer with 120- V transformer

The electrical connections are described in the submittal documents included in the Submittal Drawings
on page69. After all unit wiring is complete, you can use the iCOM control to set operating setpoints. See
the Liebert® iCOM User Guide, SL-31075.

The following table lists the relevant documents by number and title.

Table 5.2 Electrical Field-connection Drawings

Document Number Title

DPN004587 Electrical Connections Enclosure, Dualpower input

DPN004732 Electrical Connections Enclosure, Single power input

DPN004591 Evaporator Electrical Panel component definitions and locations

DPN004350 Liebert® iCOM Unit-mounted Display

DPN000960 Liebert® iCOM Remote temperature and humidity sensor

DPN003144 Liebert® iCOM Service bracket

Unit-to-Unit Networking

DPN004351 Liebert® iCOM Unit-to-unit Network Connections

5 Electrical FieldConnections

25

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6 CHECKLIST FOR COMPLETED INSTALLATION

6.1 Moving and Placing Equipment

1. Unpack and check received material.

2. Proper clearance for service access has been maintained around the equipment.

3. Equipment is level and mounting fasteners are tight.

4. Proper condensate-drain system is in place.

6.2 Electrical Installation Checks

1. Supply voltage and phase matches equipment nameplate.

2. Power wiring connections completed to the disconnect switch.

3. Power line circuit breakers or fuses have proper ratings for equipment installed.

4. All internal and external high- and low-voltage wiring connections are tight.

5. Confirm that unit is properly grounded to an earth ground.

6. Control transformer setting matches incoming power.

7. Electrical service conforms to national and local codes.

8. Confirm that power-wiring connections to the utility box are completed.

6.3 Other Installation Checks

1. Ducting complete.

2. Confirm ducting is attached to unit and building structure, and any openings around supply­and return-duct connections are sealed.

3. Filters installed.

4. Check fasteners that secure evaporator-fan motors—some may have become loose during
shipment.

5. Check blowers and compressor for proper rotation.

6. Drain line connected, not obstructed, and pitched per local code.

7. All fans are free of debris.

8. Seal openings around electrical connections and make sure that the seals are water-tight.

9. Installation materials and tools have been removed from equipment (literature, shipping
materials, construction materials, tools, etc.).

10. Check for refrigerant leaks.

11. Make sure heat load is available during initial start-up. Consult factory for assistance.

6 Checklist for CompletedInstallation

27

6.4 BMS and Sensor Installation Checks

1. CAT5 cables are installed from each unit and the network switch, and all cables have RJ45
jacks on each end.

2. The network switch/Liebert® vNSA panel (if present) is installed and powered.

3. Confirm the static-pressure-sensor transducer (if present) is installed in the room and wired
back to the DP060 unit

4. Confirm the supply-air sensor is installed in the best location possible to obtain a temperature
reading representative of the supply air in the duct or plenum serviced by the unit and that
the sensor is wired back to the unit control panel.

5. All remote and 2T rack sensors (if present) are installed and wired using CANBUS cables.

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7 INITIAL START-UP CHECKS
ANDCOMMISSIONINGPROCEDURE
FORWARRANTYINSPECTION

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 on the exterior of the enclosure. 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 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.

NOTICE

Risk of improper electrical connection of three-phase input power. Can cause backward
compressor rotation and unit damage. Service technicians should use a gauge set on the
system during the initial start up to verify that the three-phase power is connected properly.
The EC fans are not a reliable indicator of proper connection. The blowers will rotate the same
direction, regardless of the three-phase power input. Three-phase power must be connected
to the unit line voltage terminals in the proper sequence so that the compressors rotate in the
proper direction. Incoming power must be properly phased to prevent compressors from
running backward. We recommend checking the unit’s phasing with proper instrumentation to
ensure that power connections were made correctly. We also recommend verifying discharge
and suction pressures during start up to ensure that the compressors are running in the
correct direction.

• Confirm that all items on Checklist for Completed Installation on page27 have been done.

• Locate “Liebert® DP060 Warranty Inspection Check Sheet” in the unit’s electric panel.

• Complete “Liebert® DP060 Warranty Inspection Check Sheet” during start-up.

• Forward the completed “Liebert® DP060 Warranty Inspection Check Sheet” to your local sales
office. This information must be completed and forwarded to validate warranty.

• Contact your local sales representative or technical support if you have any questions or
problems during unit start-up and commissioning. Visit https://www.vertivco.com/en­us/support/ or call 1-800-543-2778 for contacts.

7 Initial Start-up Checks andCommissioningProcedure forWarrantyInspection

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8 MAINTENANCE

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 on the exterior of the enclosure. 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 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.

The Liebert® DP060 Packaged Solution is a single component in the facility heat-removal system. Proper
application and maintenance of the entire system is critical to the life and reliability of the thermal­management units.

• Good maintenance practices are essential to minimizing operation costs and maximizing
product life.

• Read and follow monthly and semi-annual maintenance schedules included in this manual.
These MINIMUM maintenance intervals may need to be more frequent based on site-specific
conditions.

• See the Liebert®iCOM™ user manual, SL-31075, available at www.vertivco.com, for instructions
on using the controller to predict some service maintenance intervals.

• We recommend the use of trained and authorized service personnel, extended service
contracts and factory-specified replacement parts. Contact your Vertiv sales representative.

8 Maintenance

31

8.1 Service/Maintenance Access to the Evaporator Compartment

The evaporator section includes access doors that swing inward on both sides to allow access for
maintenance on components within the evaporator compartment.

For the location of components that require maintenance, see the appropriate pages of the submittal
drawing DPN004597 included in the Submittal Drawings on page69. Plan access through at least one
door to allow for removal of evaportor coil. See notes on DPN004602 for recommended clearance.

NOTICE

Risk of equipment damage. The evaporator access panel cannot be opened while the exterior
man door is closed.

CAUTION: Risk of low-hanging panels. Can cause injury or equipment damage. Wear
appropriate, OSHA-approved PPE when entering and working within the enclosure.

8.2 Filters

NOTICE

Risk of improper filter installation. Can cause filter collapse and airflow reduction.

Pleat direction is non-standard. Use only short-pleat filters (see Proper filter pleat direction). Long-pleat
filters are subject to collapse at high airflows.

To maximize the performance and reliability of the equipment, use only Vertiv filters. Contact your Vertiv
representative to order replacement filters.

Verify that filters are installed and positioned so the air-flow direction marked on the filter is the same
direction as unit air flow.

Table 8.1 Filter Quantities

Number of Filters

Unit S ize Filter Size, WidthxLength, in. (mm)

25 x 16 (635 x 406) 1

DP060

25 x 20 (635 x 508) 2

4in. (102mm)Filter Option,

MERV8, MERV11 or MERV13

8.2.1 Filter-replacement

1. Disconnect power from the unit.

2. Open the front access panel, locate the filter above the electric panel, and slide the filter out
the front of the unit.

3. Replace with new filter—install the filter in the proper direction of the airflow.

4. Test the operation of the filter clog switch.
The unit panels must be in place and closed to find this point.

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5. Start the blower and turn the switch counterclockwise until the alarm is energized.

6. Turn the adjusting knob one turn clockwise or to the desired filter change point.

Figure 8.1 Proper filter pleat direction

Item Description

1 Short pleat construc tion

2 Long pleat construction

8 Maintenance

33

8.3 Evaporator Blower Drive System—EC Fans

WARNING! Risk of electric shock. Can cause serious injury or death. Open all local and remote
electric power-supply disconnect switches and verify with a voltmeter that power is off before
opening the fan motor electric-connection enclosure. Use only fully-trained and qualified HVAC
technicians to replace or perform maintenance on the fans.

CAUTION: Risk of contact with hot surfaces. Can cause burn injury. The EC fans and
electronics housing are extremely hot during operation. Allow sufficient time for them to cool
to a touch-safe temperature before handling. Use extreme caution and wear appropriate,
OSHA-approved PPE when replacing or performing maintenance on the EC fans.

CAUTION: Risk of improper moving, lifting and handling. Can cause equipment damage or
injury. Only properly trained and qualified personnel should work on this equipment. Fan
modules weigh in excess of weigh in excess of 125lb (57kg). Use proper lifting techniques and
wear appropriate, OSHA-approved PPE to avoid injury and dropping the fan module during
removal. Equipment used in handling/lifting, and/or installing the fan assembly must meet
OSHA requirements. Use handling/lifting equipment rated for the weight of the fan assembly.
Use ladders rated for the weight of the fan assembly and technicians if used during installation.
Refer to handling/lifting, and/or installation equipment operating manual for manufacturer's
safety requirements and operating procedures.

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.

NOTICE

Risk of improper installation. Can cause equipment damage.

Only a properly trained and qualified technician should install or open this motor.

Use 60/75°C Class 1 copper wire only.

8.3.1 Protective Features

Monitoring functions protect the motor against overtemperature of electronics, overtemperature of motor
and incorrect rotor position detection. With any of these failures, an alarm will display through the
Liebert® iCOM controller and the motor stops electronically. There is no automatic restart. The power
must be switched off for a minimum of 20 seconds once the motor is at a standstill.

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The motor also provides locked rotor protection, undervoltage/phase failure detection and motor current
limitation. These conditions will display an alarm through the Liebert® iCOM.

8.3.2 Fan Impellers and Bearings Maintenance

Fan impellers should be periodically inspected and any debris removed. Check to ensure that the
impellers can rotate freely and that the fan guards are still properly mounted for sufficient protection
against accidentally contacting the impeller. Bearings used on the units are maintenance-free. Consult
the factory for more information.

8.3.3 Fan Assembly Troubleshooting

Any safety hazards stemming from the device must be re-evaluated once it is installed in the end device.

Do not make any modifications, additions or conversions to the fan assembly without the approval of
Vertiv.

WARNING! Risk of electric shock. Can cause serious injury or death. Open all local and remote
electric power-supply disconnect switches and verify with a voltmeter that power is off before
opening the fan motor electric-connection enclosure. Use only fully-trained and qualified HVAC
technicians to replace or perform maintenance on the fans.

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.

8 Maintenance

35

NOTICE

CAUTION: Risk of exposure to harmful noise levels. Can cause hearing injury or loss.
Depending on the installation and operating conditions, a sound pressure level greater than
70dB(A) may arise. Take appropriate technical safety measures. Operating personnel must
wear appropriate, OSHA-approved PPE and observe all appropriate hearing-protection safety
requirements.

CAUTION: Risk of contact with hot surfaces. Can cause injury. The compressor, refrigerant
discharge lines, fan motor, and some electrical components 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.

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.

NOTE: Do not assume that the fan blades will not start to spin. If the motor is in a fault condition, it will
safely shut down. Once the fault condition is cleared, there are certain conditions in which the motor
will automatically resume operation.

EC-fan Fault Conditions

Table 8.2 EC-fan Fault Conditions

Fault Condition Reset Trigger Description

Phase Failure Automatic

Locked/Blocked
Rotor

Hall Effect
Sensor Error

Motor Over
Temperature

Electronics Over
Temperature

Line
Under-Voltage

Automatic

Manual
(Mains/Software)

Manual
(Mains/Software)

Manual
(Mains/Software)

Automatic

One phase is missing. In this c ase the motor willcome to a stop andthen automatically restart
when allphases are present.

The rotor is blocked. Once the locking mechanism has been removed, the motor will
automaticallyrestart.

The Hall Effect Sensor is used to monitor fan speed. If there is a hall sensor c ommunication
failure with the electronics, the motor willstop. In this case there has to be a manual restart
(either with the mains power or software).

The motor willstop in the event there is amotor over temperature condition. In this case
there has to be a manual restart (either with the mains power or software).

The motor willstop in the event there is anelectronics over temperature c ondition. In this
case there has to be a manualrestart (either with the mains power or software).

Once the line voltage returns within permitted operating range, the fan willautomatically
restart.

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EC-fan High-voltage Tests

1. Check Fuses. If fuses are okay, perform the following:

• Check all connections.

• Make sure connections are on the wire strand and not on the wire insulation.

• Cycle Power. Disconnect mains voltage to power down the motor and then re-apply
power.

• Check mains voltage at each phase (phase to ground) at the KL1 connector.
Confirm phase failure not present.

• Check that the voltage is within the acceptable voltage range at the KL1
connector. Confirm line under-voltage is not present.

2. Check Fuses. If fuses are blown, perform the following:

• Check resistances across the phases at the KL1 connector and note them in the
following table..

NOTE: Power wires must be removed from the motor for resistance test.

L1 - L2 Ohm

L2 - L3 Ohm

L1 - L3 Ohm

• Resistances should be similar for all 3 readings.

• Resistance readings should be greater than 2Ohm.

• Check all connections. Make sure connections are on the wire strand and not on
the wire insulation.

• Replace Fuses.

• Check mains voltage at each phase (phase to ground) at the KL1 connector.
Confirms phase failure not present.

8 Maintenance

• Check that the voltage is within the acceptable voltage range at the KL1
connector. Confirmsline under-voltage is not present.

37

EC-fan Low-voltage Tests

• Check control input at the KL3 connector (Ain1U to GND). Confirm that there is a
control voltage present at the KL3 connector.

NOTE: Use the GND in the KL3 connector. Do not connect the control ground to the PE in KL1!

• Check +10 V output on KL3 connector (between +10 V and GND).

EC-fan Alarm Contact Tests

Check the alarm contact at KL2 to determine if there are any fault conditions present.

Condition No Fault Condition Fault Condition

NO - COM Open Closed

NC - COM Closed Open

NOTE: The table refers to conditions while the motor is actively energized. When the motor is de­energized, it will be in a fault condition.

• Check EC Control to determine the fault condition.

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8.3.4 Removing Evaporator EC Fans

The EC fan in Liebert® DP060 units can be removed for easier maintenance or for replacement.

WARNING! Risk of electric shock and contact with high speed rotating fan blades! Can cause
injury or death! Open all local and remote electric power supply disconnect switches, verify with
a voltmeter that power is off, and verify that fan blades have stopped rotating before working
within the unit cabinet.

WARNING! Risk of extremely heavy fan modules dropping downward suddenly. Can cause
injury or death. Evaporator fan modules weigh in excess of 125-lb (56.7-kg) each. Support fan
modules before removing mounting hardware. Use caution to keep body parts out of fan
module pathway of movement during removal. Only properly trained and qualified personnel
should work on this equipment.

Read these instructions and unit labeling before removing fan modules.

Hardware and Tools Required

• 1/2” hex socket and wrench

• Cable tie cutter

• Field-supplied fan removal device capable of supporting fan assembly weight

To remove an EC fan module:

1. Remove middle and bottom panels from the front of the evaporator unit located inside the
side-access door.

8 Maintenance

39

2. Insert a field-supplied fan-removal device securely on the front and rear frame channels under
the fan module as shown in Figure 8.3 on the facing page.

• A suitable fan-removal device is two lengths of rigid material that is 4 inches (100mm)
wide and strong enough to support the weight of the fan module.

3. Remove hardware, Figure 8.2 below, and save it forre-installation.

Figure 8.2 Hardware removal

Item Description

1 1/2-in. (13-mm) Hex-head bolts (typical both sides)

2 Fan deck

3 Wiring loop

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Vertiv | Liebert® DSE060™ Installer/User G uide

4. Disconnect high-voltage and low-voltage fan-motor wiring from the fan-motor electric
component inside the electric panel. Cut cable ties as needed.

5. Using the removal device shown inserted in Figure 8.3 below, slide the fan module out
through the front of the evaporator unit.

6. To reinstall the fan module, reverse these steps. Remove the field-supplied fan-removal device
before resuming operation.

NOTE: Refer to the unit's electrical schematic for specific wire-attachment points.

Figure 8.3 Slide EC fan out of the unit

Item Description

1 Rear frame channel (right-sidepanelnot shown)

2 Front channel

3 Fan-removaldevices

8.4 Electronic Expansion Valve (EEV) Maintenance

The EEV controls superheat through the Liebert® iCOM™ controls by actively measuring suction
pressure via a transducer attached to the suction-line rotalock and suction temperature via a thermister
strapped to the suction line. The EEV actively adjusts the orifice size and resulting mass flow of refrigerant
to maintain the superheat setpoint (set in Liebert® iCOM). The EEV is used in place of the standard
thermal expansion valve (TXV).

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.

NOTE: Intermittent loss of subcooling may result in EEV/superheat instability.

8 Maintenance

41

8.5 Compressor Maintenance

8.5.1 Compressor Oil

NOTICE

Risk of improper compressor lubrication. Can cause compressor and refrigerant system
damage.

Failure to use oil types, viscosities and quantities recommended by the compressor
manufacturer may reduce compressor life and void the compressor warranty.

• Do not mix polyolester (POE) and mineral-based oils.

• Do not mix oils of different viscosities.

• Consult Vertiv technical support or the compressor manufacturer if questions arise.

8.5.2 Rotalock Valve

WARNING! Risk of explosive discharge of high-pressure refrigerant. Can cause serious injury.
Neutral and service ports on the rotalock valve do not have a valve core. Front-seat the service
valves and relieve pressure from the compressor before loosening a part or a component
attached to the service valve. Follow local codes to properly reclaim refrigerant.

• The Neutral port remains open to the compressor side in all positions of the valve stem, Figure

8.4 below. A high-pressure cut-out switch or low-pressure switch/transducer will be
connected to this port.

• The Service port is closed to the system when valve stem is back-seated, Figure 8.4 below. It is
open to the system as soon as the valve is adjusted away from the back-seated position.

Figure 8.4 Rotalock valve

Item Description Item Description

1 Service port (gauge) 4 Compressor side of valve

2 Front seat 5 Neutral port

3 Back seat 6 System side of valve

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8.5.3 Replacement Compressors

Replacement compressors are available through your Vertiv sales office. If the unit is under warranty, the
replacement compressor must be obtained from and the original compressor returned to your local Vertiv
sales office. Compressors are shipped in reusable packaging, and the original compressor should be
returned in the same packaging.

8.5.4 Compressor Motor Burnout

If a burnout has occurred, a full system clean-out is required. If not cleaned, compressor and system
problems will continue.

Consult the factory for compressor maintenance. Do not attempt to remove the compressor without first
contacting Vertiv support at 1-800-543-2778.

8.5.5 Unloading Solenoid(s) on a Digital-scroll Compressor

When replacing a digital-scroll compressor, the digital solenoid valve and coil must be replaced. The
compressor and valve kit are shipped separately. The valve kit must be field-brazed to the top of the
compressor in proper orientation and supported with the original factory bracket.

8.5.6 Replacing the Compressor

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.

8 Maintenance

WARNING! Risk of over-pressurization of the refrigeration system. Can cause explosive
discharge of high-pressure refrigerant, loss of refrigerant, environmental pollution, equipment
damage, injury, or death. This unit contains fluids and gases under high pressure. Use extreme
caution when charging the refrigerant system. Do not pressurize the system higher than the
design pressure marked on the unit's nameplate.

NOTE: Release of refrigerant to the atmosphere is harmful to the environment. Refrigerant must be
recycled or discarded in accordance with federal, state, and local regulations.

1. Attach suction and discharge gauges to access fittings.

2. Recover refrigerant using an approved recovery procedure and equipment. Use a filter drier
when charging the system with recovered refrigerant.

3. Remove marked pressure transducer and discharge pressure switch. Disconnect all electrical
connections.

4. Remove failed compressor.

5. If required, follow compressor manufacturer’s suggested clean-out procedures.

43

6. Install replacement compressor and make all connections. Replace unloading solenoid.

7. Evacuate, charge and operate per the appropriate procedure per local codes:

NOTICE

Risk of improper component re-installation. Can cause equipment damage.

Identify and mark location of suction pressure transducer and discharge pressure switch.
These devices look similar and they must be reinstalled in their original location.

8.6 Evaporator Coil

The DP060 is a single-circuit A-frame coil.

8.7 General Condenser Maintenance

Periodic attention is necessary for continued satisfactory operation of your unit. Restricted air flow
through the condenser coil, reduced airflow from non-functioning fans and low refrigerant system charge
levels will reduce the operating efficiency of the unit and can result in high condensing temperatures and
loss of cooling. In winter, do not permit snow to accumulate around the sides or underneath the condenser
coil.

Monthly and semi-annual inspections and maintenance are recommended for proper system operation.
Use copies of Preventive Maintenance Checklist on page61 for each of these inspections.

8.8 Condenser Cleaning

Keeping the outdoor condenser coils clean is an important factor in maintaining peak efficiency, reliability,
and long life of the equipment. The unit will operate more efficiently with frequent cleanings. If you delay
cleaning until heavy build-up occurs, head-pressure problems with the evaporator units can develop.

8.8.1 When to Clean the Condenser Coil

Normal conditions typically dictate cleaning twice a year, in spring and fall. On-site or area conditions
such as cottonwood trees, construction, etc., can increase cleaning frequency. On your standard monthly
preventive maintenance schedule, we recommend a visual inspection of the coil to monitor conditions.

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8.8.2 What to Use to Clean the Condenser Coil

NOTICE

Risk of improper cleaning agent selection, including non-base paint solvents. Can cause
building and equipment damage and loss of refrigerant charge.

Using acid-based or sodium hydroxide-based cleaners can damage the condenser coil and
cause a loss of charge. This could cause equipment damage as well as damage to the
surrounding structure.

Start with removing dirt, leaves, fibers, etc. with a soft brush or vacuum cleaner fitted with a soft-brush
attachment. Do not use a wire brush or scrape the coil with a metal vacuum hose. The best overall
condenser coil cleaner is plain water. If the coil is maintained and cleaned at regular intervals, water is
sufficient to remove dirt and debris from the fins. Water pressure from a garden hose and sprayer usually
works well. If a pressure washer is used, make sure that the equipment is set to a lower pressure setting
and that the nozzle is set to the fan spray, not stream. Otherwise, damage to the fins could result. If a
cleaner is required, we recommend using a neutral cleaner, neither acidic nor base. Acid-type cleaners
can damage the coil fins and surrounding areas. Many sites do not allow the use of acidic cleaners for
environmental reasons.

8.8.3 Cleaning the Condenser Coil

The condenser coil is accessible through the cleaning window, which allows you to clean the coil without
removing the fans from the unit.

To clean the coil:

1. Disconnect the power supply before working on the unit.

2. Open the cleaning window(s) on the side of the condenser by loosening the mounting screws.

3. Insert a spray nozzle on the end of a suitable extension and apply the water/cleaning solution,
working back and forth across the coil face.
The solution pushes dirt and debris out the bottom of the coil.

• If you are using a cleaner along with the spraying process, follow recommended
manufacturer instructions and be sure to rinse the coil thoroughly. Any residue left on
the coil can act as a magnet to dirt.

4. Reinstall the cleaning window(s) and reconnect the power supply to the condenser.

5. Coils will possibly retain water after cleaning and rinsing, so manually reverse the fans briefly
using condenser controls to speed drying of the coils and prevent a possible high-head­pressure condition when the condenser is put back into service.

NOTE: Spraying the coil from the outside repeatedly can push a majority of the dirt to the inner section
of the fins and continue to restrict air flow. Keep in mind you may not have the luxury of shutting the
unit(s) down for an extended time. A scheduled shutdown with the operator may be in order.

8 Maintenance

45

8.8.4 Cleaning the Condenser Fan

• Clean the EC fan with water only when temperatures are greater than 50°F (10°C)

• Make sure that no water gets into the inside of the motor.

• Do not hold the jet spray directly on the motor openings and seals.

• During cleaning work using a jet spray, no guarantee is assumed regarding corrosion
formation/paint adhesion for unpainted/painted fans.

8.9 Replacing the Condenser Fan

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 on the exterior of the enclosure. 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 serious 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 the component electric-connection enclosures. Fan-motor controls can
maintain an electric charge for 10 minutes after power is disconnected. Wait 10 minutes after
power is verified as off before working within the fan electric control/connection enclosures.

WARNING! Risk of contact with high-speed, rotating fan impeller blades. Can cause 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 impellers have stopped rotating before
working in the unit cabinet.

CAUTION: Risk of contact with hot surfaces. Can cause burn injury. The EC fans and
electronics housing are extremely hot during operation. Allow sufficient time for them to cool
to a touch-safe temperature before handling. Use extreme caution and wear appropriate,
OSHA-approved PPE when replacing or performing maintenance on the EC fans.

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CAUTION: Risk of improper moving, lifting and handling. Can cause equipment damage or
injury. Only properly trained and qualified personnel should work on this equipment. Fan
modules weigh in excess of weigh in excess of 250lb (113.4kg). Use proper lifting techniques
and wear appropriate, OSHA-approved PPE to avoid injury and dropping the fan module during
removal. Equipment used in handling/lifting, and/or installing the fan assembly must meet
OSHA requirements. Use handling/lifting equipment rated for the weight of the fan assembly.
Use ladders rated for the weight of the fan assembly and technicians if used during installation.
Refer to handling/lifting, and/or installation equipment operating manual for manufacturer's
safety requirements and operating procedures.

NOTE: If at any time a parameter is entered and the condenser display does not show 888 or if the
display shows Err, re-enter the parameter. If the display still shows Err after ENT is pressed, power
cycle the control board by unplugging P24, waiting 15 seconds and plugging P24 back in. Contact the
factory if the parameter still displays Err after ENT is pressed.

To replace the fan:

1. Turn Off power to the unit using the disconnect.

2. Use a voltmeter verify that voltage is no longer present at the unit. Wait a minimum of
10minutes to allow the EC fan capacitors to discharge before proceeding.

3. Remove the fan cover, disconnect electrical connections internal to the EC fan and remove the
cable glands from the EC fan to be replaced (see Figure 8.5 on the next page, and Figure 8.6
on page49.

8 Maintenance

47

Figure 8.5 Internal wiring of Ziehl-Abegg fan in Condenser

Item Description

1 GND

2 Edge of cable's outer jacket should onlyextend far enough into the enclosure to make the electricalconnections.

3 Not used on last fan.

4 Communication-cable c onnection to the next fan. Not used on last fan.

5 Communication-cable connection from the previous fan or electrical box.

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Figure 8.6 Internal wiring of EBM fan in Condenser

Item Description

1 Wiringterminaldetail.

2 Not used on last fan.

3 Must be cable-tied together awayfrom high-voltage terminals

4

5 GND

6 Communication cable connected to the next fan(not used on the last fan).

7 Communication c able from the previous fan or from the electric box.

Edge of out cable jacket should onlyextend far enough into enclosure to be able to make the electrical
connections.

4. Remove hardware that attaches the EC fan to the condenser.

5. Use lifting equipment or an adequate number of personnel to remove the EC fan from the
condenser.

NOTE: A spreader bar may be required for the lifting equipment if only one technician is performing the
fan replacement.

6. Install a spreader bar over the new EC fan if only one technician is performing the fan
replacement.

7. Verify that the wire harness on the new EC fan is secured out of the way before lifting the fan.

8. Verify that the lifting cable/chains are not in contact with fan blades before lifting the new fan
into place on the condenser.

9. Install the new fan in the condenser and connect the mounting hardware.

10. Verify that the fan blades rotate freely when installed in unit.

8 Maintenance

49

11. Install the new cable glands included with the new EC Fan. Torque for the cable glands is:

• 630-mm and 710-mm fans: 19.5to24.75 in-lb (2.2 to 2.8 Nm)

• 800-mm fans: 32.75 to 38 in-lb (3.7 to 4.3Nm)

Dispose of the old cable glands once the new glands are installed.

12. Add a compression nut to the wire—Do not tighten the nut.

13. Reconnect the wiring to the proper terminals and verify that the run jumper is in place. See
Figure 8.5 on page48, and Figure 8.6 on the previous page, for wiring details.

• The torque for the electrical terminals is 11.5 in-lb (1.3 Nm). Tighten the compression nut
to a torque of 22 in-lb (2.5 Nm).

14. With the PCB powered, the board display should read F00.

15. Press the ESC button.

16. Press the UP-arrow button once:

• If P- - is displayed, perform step 17.

• if P- - is not displayed, perform steps 18 through 46.

17. If P- - is displayed, press the ENT button to enter the P- - Menu.

The P- - Menu allows compact set-up/preparation of the condenser in the factory or in the
field. Use the functions described in Table 8.3 on the facing page, to establish a default
control configuration for the board.

NOTE: The complete list of P--, C--, and F-- parameters is located inside the lid of the electrical-box
panel.

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Table 8.3 P-- menu items and definitions

Item

ID

P01

P02

P03

P04

P05

Meaning Default Notes

Enter

Preparation

Mode

Automatic
VSD

Configuration

Refrigerant

Type

Number

of Circuits

Liebert®

Lee Temp

Option

Setting this value to ‘1’ enables preparation mode. All other ‘P—‘menu items are disabled untilthis
value is ‘1’. Note that control operations may be affected during preparation mode, therefore the

0

cooling unit should be off. Setting this value back to ‘0’ creates new default values based upon
selections in this menu. After default values are established, the board exits preparationmode and
reboots.

This item should onlybe used to address the VSDs for the unit. The value entered indicates the
model of the VSD:

1 – EBM

2 – Ziehl-Abegg

1

3 – Fans Tec h

Allfansmust be the same model to use this parameter. When ENT is pressed, the board will
operate and power contactors for the VSDs and assign ModBus addresses. This procedure may

take up to 5minutes to complete.

1 = R22

2

2 = R407C

3 = R410A

1 = Single Circuit

1

2 = DualCircuit

0 = No Lee Temp installed

0

1 = Liebert® Lee-Temp installed

P06 Condenser 1 0 = Small

18. Turn the power On.

19. The control board flashes F00 on the display when it has completed its boot cycle.

20. Press the ESC button.

21. Use the UP or DOWN arrow button until C-- displays.

22. Press the ENT button.

23. Use the UP or DOWN arrow button until C03 displays

24. Press the ENT button.

25. Use the UP or DOWN arrow button to select one of three options:

Configuration Code Fan# Value

C03 Fan 1

C04 Fan 2

C05 Fan 3

C06 Fan 4

0 = No Fan

1 = EBM Papst

2 = Ziehl-Abegg

26. Press the ENT button.

27. If the new value is entered into the control board, the display flashes "888."

8 Maintenance

51

28. Press the ESC button to display C03 .

29. Repeat steps 20 through 27 for the remaining fans’ configuration codes, C04, C05 and C06.

30. Unplug all the contactor output plugs except for the fan to be addressed. Plugs are:

• P23 = Fan 1

• P27 = Fan 2

• P28 = Fan 3

• P29 = Fan 4

31. Wait 30 seconds.

32. Use the UP or DOWN arrow button to select one of the following parameters.

The correct parameter depends on the supplier of the fan that will be addressed.

• C00—EBM Papst fan

• C01—Ziehl-Abegg fan

33. Press the ENT button.

34. Use the UP or DOWN arrow button to the correct fan address number. Fan 1 should be 1 (fan
closest to electric panel end). Fan 2 should be 2, etc.

35. Press the ENT button. The display flashes "888 " when the command is accepted.

36. Press the ESC button for the parameter to be shown on the display.

37. Repeat steps 30 through 36 for the rest of the fans that need to be addressed.

38. After the last fan is addressed, unplug the power plug, P24, from the control board, and wait 30
seconds.

39. Plug all the contactor output plugs back into the board in their correct positions.

40. Plug P24 back into the control board.

41. After the control board completes its boot cycle and all the contactors are energized, wait
5seconds.

42. Press the ESC button.

43. Use the UP or DOWN arrow button until A-- is on the display.

44. Press ENT button.

45. Use the UP or DOWN arrow button to see if any of the following errors are shown.

115: Unable to communicate with Fan 1.

215: Unable to communicate with Fan 2.

315: Unable to communicate with Fan 3.

415: Unable to communicate with Fan 4.

• If any of these errors appear, check the communication wiring at the problem fan and the
fan before it.

• If the wiring is correct and properly wired to the terminal, repeat the fan addressing
procedure in steps 30 through 36.

46. If none of the errors listed in step 45 displays, press the ESC button.

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8.9.1 Verifing the Fan Address

To verify that each fan has a unique address:

1. Use the UP or DOWN arrow button until C-- displays.

2. Press the ENT button.

3. In the Manual/System Control Selection parameter use the UP or DOWN arrow button until
C24 displays.

4. In the Manual Control configuration parameter, press the ENT button.

5. Use the UP or DOWN arrow button to select 0.

6. Press the ENT button.
The reads "888" if the command is accepted.

7. Press the ESC button to display C24 .

8. Use the UP or DOWN arrow button until C34 displays.

9. Press ENT button.
If Fan 1 is running, the fans speed should display in terms of percentage of full speed. If Fan 1 is
not running, 0.00 should display.

10. Use the UP or DOWN arrow button to enter 100% speed.

11. Press the ENT button.
The display reads "888" if the command is accepted.

• Fan 1 should speed up to 100%, and all the other fans should stay the same speed.

12. If Fan 1 is not running or if any of the other fans also speed up to 100%, steps 30 through 36 of

Replacing the Condenser Fan on page46, must be repeated.

13. Press the ESC button for the parameter to be shown on the display.

14. Repeat steps 3 through 8 for the rest of the fans, if present.

• C35: for Fan 2.

• C36: for Fan 3.

• C37: for Fan 4.

NOTE: All fans should be at 100% speed.

15. Use the UP or DOWN arrow button until C24 displays.

16. Press the ENT button.

17. In the System Control configuration parameter, use the UP or DOWN arrow button to select 1.

18. Press the ENT button.
The display flashes "888" if the command is accepted.

19. Press the ESC button to display C24.
All fans should return to a normal speed based on the pressure input and the state of indoor

unit’s compressor.

8 Maintenance

53

Notes on the Premium-efficiency Control Board

• J6 is the CANbus termination jumpers. If the condenser is the last device in the CANbus
communication line, the jumper must be placed between Pins 1 and 2 of J6. If the condenser is
not the last device in the CANbus communication line, then the jumper on J6 must be placed
on Pins2 and 3. CANbus communication errors may occur if the jumpers are not in the correct
positions.

• A jumper must be present at J2. If a jumper is not present, the control board will not boot
properly during power startup.

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Table 8.4 Premium Efficiency Control Board Configuration-parameter List

Default R410a Comments

Submenu ID Meaning

Metric Imperial

C00 EBM address 1

C01 ZIEHL_ABEGGaddress 1

C02 FANS_TECH address 1

C03 EC Fan1 model ID 0

C04 EC Fan 2 model ID 0

C05 EC Fan 3 model ID 0

C06 EC Fan 4 model ID 0

C07 System model ID 0 "0" = Single, "1" = Dual

C09 System refrigerant type 3 "2" = R407c, "3" = R410a

Do not change unless properly
instructed.

C10

C11

C12

C13

C14

C15

C16

C17

C18

C19

C20

Condenser pressure
absolute max 1

Condenser pressure
absolute max 2

Condenser pressure
absolute min 1

Condenser pressure
absolute min 2

Condenser pressure PID
Kp

Condenser pressure PID
Kip

Condenser pressure PID
Kdp

Refrigerant temperature
max1

Refrigerant temperature
max2

Refrigerant temperature
min 1

Refrigerant temperature
min 2

28.0 bar 406 psi R407c - 17-25 bar; 247-362 psi

28.0 bar 406 psi R410a - 25-38 bar; 363-550 psi

18.0 bar 261 psi R407c - 11-17 bar; 160-246 psi

18.0 bar 261 psi R410a - 16-24 bar; 232-347 psi

1.00

0.02

Do not change unless properly
instructed.

0.00

35°C 95.0°F

Range 30 - 40°C; 86 - 104°F

35°C 95.0°F

25°C 77.0°F

Range 20 - 30°C, 68 - 86°F

25°C 77.0°F

8 Maintenance

C21

C22

C23

Refrigerant temperature
PID Kp

Refrigerant temperature
PID Kip

Refrigerant temperature
PID Kdp

0.36

162.00

1.00

Do not change unless properly
instructed.

55

Table 8.4 Premium Efficiency Control Board Configuration-parameter List (continued)

Default R410a Comments

Submenu ID Meaning

Metric Imperial

C24 System control state 1 "0" = Manual, "1" = Auto

C25

C26

C27 Lee Temp Option 0

C28

C32

C33

Condenser pressure
setting point 1

Condenser pressure
setting point 2

Minimum Speed with
LeeTemp

Refrigerant temp. set point
1

Refrigerant temp. set point
2

20.0 bar 290 psi R407c - 12-18 bar; 174-261 psi

20.0 bar 290 psi R410a - 18-26 bar; 261-376 psi

"0" - No Lee Temp installed,
"1" - Lee Temp installed

10% Range 8 - 20%

1.67°C 35°F
Range -40 - +40°C;

-39.9 - +104°F

1.67°C 35°F

C34 EC Fan1 request speed 0%

C35 ECFan2 request speed 0%

C36 EC Fan3 request speed 0%

Manuallysets fan speed (RPM) when
C24 is set to "0".

C37 ECFan4 request speed 0%

C38 ECFan Reverse Request 0 "0" = Off, "1" - On

C39

EC Fan startup speed offset
for pressure mode

0

Offset to the startup speed of the EC
Fan in range -10%to10%

C50-C58

C90 Prefered displayunits. 1

"0" = Metric (bar, °C)
"1" = Imperial(psi, °F)

C91 Save configuration to USB flashdrive. Pressing ENT willexecute the function immediately.

C92 Load c onfiguration from USB flash drive. Pressing ENT willexecute the function immediately.

C98 Clear alarm history.

C99 Restore Factory Defaults except EC fancontrol parameters

Note: Please consult factory before making anychanges to the parameter settings. Changing the parameters without proper

instructions can lead to poor system performance.

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8.10 Replacing the Premium-efficiency Control Board

Use these steps to replace the Premium-efficiency Control Board in the condenser.

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 on the exterior of the enclosure. 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.

8.10.1 Preparing to Replace the Board

1. Verify that the following jumpers are installed on the new board (see Figure 8.7 on the next
page):

• Jumper at J4 and J6 on Pins 2 and 3.

• Jumper on J2.

• Jumper on J5 on Pins 1 and 2.

2. Locate the latest revision of the HMI parameters label, 303847P1, included with the new control
board.

NOTE: In Figure 8.7 on the next page, J6 is the CANbus termination jumper. J4 is the RS485 service
termination jumper. If the condenser is the last device in the CANbus communication line, the jumper
must be placed between Pins 1 and 2 of J6. If the condenser is not the last device in the CANbus
communication line, the jumpers on J6 must be placed on Pins 2 and 3. If the jumper is not in the
correct positions, CANbus communication errors may occur. The jumper on J4 will always be placed
between Pins 1 and 2.

NOTE: In Figure 8.7 on the next page, a jumper must be present at J2. If a jumper is not present, the
control board will not boot properly during power startup.

8 Maintenance

57

Figure 8.7 Jumper locations on Control Board

Item Description

1 J4, RS485 service termination jumper

2 J6, Canbus termination jumper

3 J5

4 J2

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Vertiv | Liebert® DSE060™ Installer/User G uide

8.10.2 Installing the Replacement Board

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 on the exterior of the enclosure. 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.

1. Turn Off the disconnect switch on the condenser enclosure cover.

2. Open the control enclosure cover.

3. Manually turn On the disconnect switch.

NOTE: Power is On and a shock hazard exists with exposure to hazardous voltage components.

4. If the board can still be powered up and has a display, record the parameter settings.

• To obtain parameters go to the C-- menu and press the UP or DOWN arrow button to
read and record the values for C03-09 and C27.

5. Record all of the DIP switch positions for the CANbus DIP switch package. Retain these for
setting up the new board.

6. Record the positions of the jumpers for J2, J4, J5 and J6 on control board in the unit. Retain
these for setting up the new board.

7. Disconnect power from the condenser by turning Off the main disconnect switch.

8. Use a voltmeter to verify that voltage is no longer present in the unit.

9. Remove the plugs and field-installed wires from the old board. Note the polarity for the
CANbus wiring going to P49 and P50, if present.

10. Mark wires P49-1, P49-3, etc, if they are not already marked.

11. Remove the mechanical fasteners holding the control board in place and remove the old
control board.

12. Install the new control board using the fasteners removed in step 11.

13. Reattach the plugs. Refer to the hot-stamps on the wire harnesses that correspond to the
correct plug on the board. Verify that the plugs are installed properly.

14. Change the CANbus DIP switch positions so they match the control board that was removed. If
the condenser is the second condenser on the CANbus communication line, set Position 1 of
the CANbus DIP switch from On to Off.

15. Change the jumper positions for J2, J4, J5 and J6 to match the control board that was
removed. If the condenseris the last device on the CANbus communication line, move the
jumper at J6 from Pins2 and 3 to Pins 1 and 2 (see Figure 8.7 on the previous page).

16. Power up the unit.

8 Maintenance

59

17. Change the parameters to match the parameters from the control board that was removed if
they were obtained from the old board in step 4. See step 18 if the parameters were unavailable.

18. If the old board parameters were unavailable, use the new HMI label included in kit to obtain
the proper settings. Parameters C03, C04, C05 and C06 must be programmed with the proper
EC fan supplier used on the unit.

19. Address the fans (refer to Replacing the Condenser Fan on page46).

20. Compare the HMI label on the unit with the latest revision.

• If there are differences, clean and dry the surface of the old HMI label; attach the new
label on top of the old label, covering the old label with the new one.

21. Verify that the control board is reading pressure and temperature.

22. Verify that there are no communication alarms with the fans or with the cooling unit the
condenser is serving.

23. Verify proper fan operation by adjusting the cooling unit that this condenser serves so that it
calls for cooling.

8.11 Pumped-refrigerant Economizer (PRE)

Your Liebert® DP060 includes a Liebert® PRE system. Refer to the Installer/User Guide for the economizer,
SL-18920, for the maintenance and operation details.

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9 PREVENTIVE MAINTENANCE CHECKLIST

Inspection Date Job Name
Unit Model # Unit Serial Number #
Room Temperature/Humidity °% Ambient Temperature °

Not all units will have all components. To determine your unit’s configuration, compare the Unit Model #
above above and the information in the Components and Nomenclature section.

Good maintenance practices are essential to minimizing operation cost and maximizing product life. Read
and follow all applicable maintenance checks listed below. At a minimum, these checks should be
performed semi-annually. However, maintenance intervals may need to be more frequent based on site­specific conditions. Review the unit user manual and the iCOM user manual (SL-31075) for further
information on unit operation. We recommend the use of trained and authorized service personnel,
extended service contracts, and factory-certified replacement parts. Contact your local sales
representative for more details.

Check all that apply:

Evaporator/Filters

1. Check/Replace filters

2. Wipe section clean

3. Coil clean

4. Clean condensate pan

5. Check/Test filter-clog switch operation

Blower Section (evaporator fans)

1. Mounting bolts tight

2. Blower wheels free of debris and spins freely

3. Check motor mount

4. Check/Test air sail switch

5. Motor amp draw

• Compare to nameplate amps

#1 L1 L2 L3

Electrical Panel

1. Check fuses

2. Check contactors for pitting (Replace if pitted)

3. Check/Re-torque wire connections

Controls

1. Check/Verify control operation (Sequence)

2. Check/Test changeover device(s) (if equipped)

9 Preventive Maintenance Checklist

61

Compressors

1. Check oil level

2. Check for oil leaks

3. Check compressor mounts (bushings)

4. Cap tubes (not rubbing)

5. Check/Re-torque wire connections (inside compressor box)

6. Compressor operation (vibration/noise)

7. Check crank-case heater fuses/operation (if equipped)

8. Check for refrigerant leaks

15. Amp draw

Circuit #1 L1 L2 L3

Condenser

9. Suction pressure Circuit #1

10. Discharge Pressure Circuit #1

11. Superheat Circuit #1

12. Low-pressure switch cut out Circuit #1

13. Low pressure cut in Circuit #1

14. High pressure cut out Circuit #1

1. Coil clean

2. Fans free of debris

3. Fans securely mounted

4. Motor bearings in good condition

5. Check all refrigerant lines for vibration isolation. Support as necessary

6. Check for refrigerant leaks

7. Check surge-protection device (if installed) status-indicator lights

8. Check/Re-torque wire connections

9. Check contactors for pitting (replace if pitted)

10. Verify operation sequence/set points

11. Charge verification:

a. Outdoor Ambient Temperature__________

b. Subcooling__________

c. Indoor-unit Return-air Temperature__________

d. Sight-glass level (if Lee-Temp or pumped refrigerant)_________

12. Motor amp draw

#1 L1 L2 L3
#2 L1 L2 L3
#3 L1 L2 L3
#4 L1 L2 L3

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Pumped-refrigerant Economizer

1. Check for refrigerant leaks

2. Check/Re-torque wire connections

3. Check contactors for pitting (replace if pitted)

4. Verify pump-speed control operation

5. Check pump mounting

9 Preventive Maintenance Checklist

63

MAINTENANCE NOTES

Name
Signature
Company

Make photocopies for your records. Compare readings/information to previous maintenance worksheet.

64

Vertiv | Liebert® DSE060™ Installer/User G uide

To locate your local Vertiv representative for Vertiv-engineered parts, check
https://www.vertivco.com/en-us/support/ or Call 1-800-543-2778.

9 Preventive Maintenance Checklist

65

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66

Vertiv | Liebert® DSE060™ Installer/User G uide

APPENDICES

Appendix A: Technical Support and Contacts

A.1 Technical Support/Service in the United States

Vertiv™ Corporation

24x7 dispatch of technicians for all products.

1-800-543-2378

Liebert® Thermal Management Products

1-800-543-2778

Liebert® Channel Products

1-800-222-5877

Liebert® AC and DC Power Products

1-800-543-2378

A.2 Locations

United States

Vertiv Headquarters

1050 Dearborn Drive

Columbus, OH, 43085, USA

Europe

Via Leonardo Da Vinci 8 Zona Industriale Tognana

35028 Piove Di Sacco (PD) Italy

Asia

7/F, Dah Sing Financial Centre

3108 Gloucester Road

Wanchai, Hong Kong

67

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68

Vertiv | Liebert® DSE060™ Installer/User G uide

Appendix B: Submittal Drawings

The submittal drawings are in the order of document part number (DPN). Table B.1 below, groups the
drawings by topic/application.

Table B.1 Submittal-drawings Contents

Document Number Title

Air-flow Diagrams

DPN004598 Perimeter unit air flow

DPN004599 Evaporator Ducting DimensionalData

Component Locations

DPN004597 Component Location, Perimeter Unit

Planning Dimensions

DPN004600 Cabinet and Anchor DimensionalData

DPN004601 Condensate-drain Access and Location

DPN004756 Installation andService Clearance for Multiple Units

DPN004602 Evaporator Compartment Service Area

Electrical Connections

DPN004587 Electrical Connections Enclosure, Dualpower input

DPN004732 Electrical Connections Enclosure, Single power input

DPN004591 Evaporator Electrical Panel component definitions and locations

iCOM-control Details

DPN004350 Liebert® iCOM Unit-mounted Display

DPN000960 Liebert® iCOM Remote temperature and humidity sensor

DPN003144 Liebert® iCOM Service bracket

Unit-to-Unit Networking

DPN004351 Liebert®iCOM Unit-to-unit Network Connections

69

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70

Vertiv | Liebert® DSE060™ Installer/User G uide

LIEBERT iCOM™

REMOTE TEMPERATURE & HUMIDITY SENSOR

4 1/4"
108mm

Plug in Cable to
Either Connector

4 5/16"
109mm

Front View

Circuit Board

Max Depth
1 11/16
( 42mm )

Always Mount Housing
as Shown

5/8"
15mm

1 1/2"
38mm

Plug in Cable to
Connector Marked P67

Back View

3 1/8"
81mm

Cable Raceways

Shielded Cable

Unit End

Plug

Secure Ground Wire
with screw to Back of
Electric Box

1/2"
13mm

1 1/2"
38mm

Remote Temp & Humid
Sensor Box

DPN000960
Page :1 /1

Form No.: DPN001040_REV4

Inside View of Back

Cable Marked
"Sensor End"

Board Clip

Locator Pins

Front and Back Sections
Snap Together at 4 Locations

Board Clip

Alternate Cable Entrance
for Upflow Models

Liebert Room Unit

(unit size varies per product line)

Factory supplied, field installed
shielded cable. See specification
sheet for length.

P67

Cable Marked
"Unit End"

Route Cable through
Designated Holes in Unit
for Low Voltage Field Wiring

Cable Entrance for
Downflow Shown

REV : 3
REV DATE : 3/17

6"

PURPOSE:

152mm

LIEBERT iCOM™

DISPLAY SERVICE BRACKET (OPTIONAL)

1 1/4"
32mm

7 1/4"
184mm

studs

Bracket

Bracket with
Touch Screen

between service tasks.

STEPS:

1) Verify that unit vertical panels are in place.

2) Unlatch display from cradle by pinching top tab while holding back of display - careful not to drop or let
display hang by cables.

3) Align studs of bracket with keyholes on back of display.

4) Compress bracket and display at stud points together until bracket studs slide into slots of keyholes - careful
not to pinch cables. There should be a tight fit once bracket is in place.

5) Hold display in hand to make adjustments.

6) Hang from lower edge of low voltage compartment between service tasks.

7) After use, remove and store bracket in tool box (do not store in electric panel).

8) Return Liebert iCOM™ display to cradle/bezel assembly.

DPN003144
Page :1 /1

Form No.: DPN001040_REV4

Liebert Room Unit with Bracket & Display
(unit size varies per product line)

Bracket with display assembly may be hand held for adjustments. Bracket enables hanging the display

REV : 3
REV DATE : 7/17

LIEBERT iCOM™

PRODUCT INFORMATION

UNIT MOUNTED DISPLAY

The Liebert iCOM™ display is a 7-inch capacitive, color-touchscreen display in an ergonomic, aesthetically
pleasing housing. The display and housing will be viewable while the unit accent panels are open or closed.
The display can be easily detached to view while the panel is open.

Menu Layout- The menus will be broken out into two main menu screens: User screen and Service screen.
The User screen contains the menus to access parameters required for basic unit control and setup.
The Service screen is designed for service personal and provides access to advanced control setup features
and diagnostic information.

Password Protection- The display will contain two unique passwords to protect against unauthorized changes.
An auto hide/show feature allows the user to see applicable information based on the login used. These four-digit
passwords may be customized according to User preference.

Parameter Search- The display has search fields for efficient navigation and parameter lookup.

Form No.: DPN001040_REV4

DPN004350
Page :1 /3

REV : 1
REV DATE : 8/18

LIEBERT iCOM™

Context Sensitive Help

- The display will have an onboard help database. The database will provide context

functionality (Tea

mwork modes, sharing sensor data, Standby Rotation, Lead

-

Lag, and

Cascade operation).

PRODUCT INFORMATION

UNIT MOUNTED DISPLAY

sensitive help to assist with setup and navigation of the menus.

Display Setup- The user has the ability to configure the display information based on the specific user’s preference.
Language, units of measure, screen contrast, home screen layout, back light timer and the hide/show of certain
readouts will be configurable through the display.

Additional Readouts- The display has the ability for the user to configure custom widgets on the main screen.
Widget options will include items such as fan speed, call for cooling, call for free cooling, maintenance status,
call for hot water reheat, call for electric reheat, call for dehumidification, call for humidification, airflow, static pressure,
fluid flow rate and cooling capacity.

Status LEDs- The display will provide the user with the unit’s operating status using an integrated LED.
The LED will indicate if the unit has an active alarm; if the unit has an active alarm that has been acknowledged;
or if the unit is on, off, or in a standby status.

Unit Alarms – All unit alarms are annunciated through both audio and visual cues, clearly displayed on the screen,
automatically recorded in the event log, and communicated to monitoring plug connections.

Event Log – The display will automatically store the last 400 unit-only events (messages, warnings, and alarms).

Service Contact Information – The display has the ability to store the local service or sales contact information.

Upgradeable –Display and Control Board software upgrades are performed through a USB connection.

Unit-to-Unit (U2U) Communication – Communication via private Ethernet network allows for advanced control

DPN004350
Page :2 /3

Form No.: DPN001040_REV4

REV : 1
REV DATE : 8/18

LIEBERT iCOM™

component problems before

vice terminal. Each control output shall be indicated

PRODUCT INFORMATION

UNIT MOUNTED DISPLAY

Parameter Directory- The Liebert iCOM shall provide a directory that lists all parameters in the control.

The list shall provide Line ID numbers, parameter labels, and current parameter values.

Timers/Sleep Mode- The menus shall allow various customer settings for turning the unit On or Off.

Sensor Calibration- The menus shall allow unit sensors to be calibrated with external sensors.

Maintenance/Wellness Settings- The menus shall allow reporting of potential

they occur.

Options Setup- The menus shall provide operation settings for the installed components.

Auxiliary Boards- The menus shall allow setup of optional expansion boards.

Various Sensors: The menus shall allow setup and display of optional custom sensors. The control shall

include four customer accessible analog inputs for field-supplied sensors. The analog inputs shall accept a
4 to 20mA signal. The user shall be able to change the input to 0 to 5VDC or 0 to 10VDC. The gains for
each analog input shall be programmable from the front display. The analog inputs shall be able to be
monitored from the front display.

Diagnostics/Service Mode- The Liebert iCOM control shall be provided with self-diagnostics to aid in
troubleshooting. The microcontroller board shall be diagnosed and reported as pass/not pass. Control
inputs shall be indicated as On or Off at the front display. Control outputs shall be able to be turned On or
Off from the front display without using jumpers or a ser
by an LED on a circuit board.

DPN004350
Page :3 /3

Form No.: DPN001040_REV4

REV : 1
REV DATE : 8/18

LIEBERT DS, DSE, CW, PDX & PCW

TB3

P

UNIT TO UNIT NETWORK CONNECTIONS

RS485

SITE AND BMS

COMMUNICATION

ETHERNET

CONNECTIONS

+

1 2

-

A

TB3

P75

P95 DVI-D CABLE CONNECTION
TO 7-INCH ICOM DISPLAY

P71 P72

P76

P95

P74 P64

iCOM

MICROPROCESSOR

AND I/O BOARD

P100

E5

7
6
P

6
6
P

1

2

1

1

P

P

0

1

2

2

P

P

3
1
P

7
P

P100 POWER SUPPLY TO
7-INCH ICOM DISPLAY

DETAIL A

ETHERNET CABLE
(FIELD SUPPLIED)

UNIT-TO-UNIT NETWORKING SWITCH

(FIELD SUPPLIED)

TO / FROM OTHER

NETWORKED UNITS

Form No.: DPN001040_REV4

DPN004351
Page :1 /2

REV : 2
REV DATE : 6/18

LIEBERT DS, DSE, CW, PDX & PCW

UNIT TO UNIT NETWORK CONNECTIONS

ETHERNET CABLE
(FIELD SUPPLIED)

P71

TB3

P76

P75

P95

P95 DVI-D CABLE CONNECTION
TO 7-INCH ICOM DISPLAY

P72

P74 P64

MICROPROCESSOR

AND I/O BOARD

E5

iCOM

P100

P100 POWER SUPPLY TO
7-INCH ICOM DISPLAY

P72

P71

7
6
P

6
6
P

2

1

1

1

P

P

1

0

2

2

P

P

3
1
P

7
P

P95 DVI-D CABLE CONNECTION
TO 7-INCH ICOM DISPLAY

TB3

P76

P75

P95

P74 P64

iCOM

MICROPROCESSOR

AND I/O BOARD

P100

E5

7
6
P

6
6
P

1

2

1

1

P

P

0

1

2

2

P

P

3
1
P

7
P

P100 POWER SUPPLY TO
7-INCH ICOM DISPLAY

Form No.: DPN001040_REV4

DPN004351
Page :2 /2

NOTE* For dual-unit network configurations only

REV : 2
REV DATE : 6/18

LIEBERT DSE

tion. 1 AMP, 24VAC

Terminals for the connection of a field supplied 120V 20A utility power to feed the light and

On any alarm, two additional normally open contacts are closed across terminals 94 & 95 and 96 & 97 for

n contactor, normally open dry contact is closed across terminals 84 & 85

ELECTRICAL FIELD CONNECTIONS

DP060 UNIT DEFINITIONS AND LOCATIONS

DUAL POWER INPUT

STANDARD ELECTRICAL CONNECTIONS

1) HIGH VOLTAGE ENTRANCE – This area will be used for the high voltage fittings. Enclosure is not provided with holes or knockouts,

which must be done by the installer in the field. The fittings used must have the proper environmental rating per code.

2) LOW VOLTAGE ENTRANCE – This area will be used for the low voltage and communication fittings. Enclosure is not provided with

holes or knockouts, which must be done by the installer in the field. The fittings used must have the proper environmental rating per
code.

3) HIGH VOLTAGE WIRE DUCT – Wire duct to be used by the installer for high voltage wire routing.

4) SOURCE 1 MAIN UNIT POWER CONNECTIONS – Terminals are located on top of the locking disconnect switch. See side of

disconnect switch for wire range and tightening torque. Three phase service not provided by Liebert. Wire range and tightening torque
will vary based on disconnect size. Refer to label on side of disconnect.

5) EARTH GROUND CONNECTION FOR SOURCE 1 MAIN UNIT POWER – Terminal for field supplied Source 1 earth grounding wire.

Earth grounding required for Liebert units. 14-2AWG wire range, 275 in-lb wire tightening torque.

6) SOURCE 2 MAIN UNIT POWER CONNECTIONS - Terminals are located on top of the locking disconnect switch. See side of

disconnect switch for wire range and tightening torque. Three phase service not provided by Liebert. Wire range and tightening torque
will vary based on disconnect size. Refer to label on side of disconnect.

7) EARTH GROUND CONNECTION FOR SOURCE 2 MAIN UNIT POWER - Terminal for field supplied Source 2 earth grounding wire.

Earth grounding required for Liebert units. 14-2AWG wire range, 275 in-lb wire tightening torque.

8) REMOTE SHUTDOWN - Replace existing jumper between terminals 37 & 38 with field supplied normally closed switch having a

minimum 75VA, 24VAC rating. Use field supplied Class 1 wiring.

9) CUSTOMER ALARM INPUTS – Terminals for field supplied, normally open contacts, having a minimum 75va, 24vac rating, between

terminals 24 & 50, 51, 56. Use field supplied Class 1 wiring. Terminal availability varies by unit options.

10) COMMON ALARM – On any alarm, normally open dry contact is closed across terminals 75 & 76 for remote indica

max load. Use Class 1 field supplied wiring.

11) REMOTE HUMIDIFIER – On any call for humidification, normally open dry contact is closed across terminals 11 & 12 to signal field

supplied remote humidifier. 1 AMP, 24VAC max load. Use Class 1 field supplied wiring.

12) FIELD SUPPLIED 120V UTILITY POWER –

service electrical outlet. 22-8AWG wire range, 14.2lb-in tightening torque.

13) EARTH GROUNDING CONNECTION FOR FIELD SUPPLIED 120V UTILITY POWER - Terminal for field supplied 120V earth

grounding wire. Earth grounding required for Liebert units. 14-2/0AWG wire range, 14-8AWG – 75lb-in, 6-4AWG – 110lb-in, 2-1AWG –
150lb-in, 1/0 – 2/0AWG – 180lb-in.

LOW VOLTAGE TERMINAL PACKAGE CONNECTIONS

14) EXTRA REMOTE UNIT SHUTDOWN – Two additional contact pairs available for unit shutdown (labeled as 37B & 38B, 37C & 38C).

Replace jumpers with field supplied normally closed switch having a minimum 75VA, 24VAC rating. Use field supplied Class 1 wiring.

15) EXTRA COMMON ALARM –

remote indication. 1 AMP, 24VAC max load. Use Class 1 field supplied wiring.

16) MAIN FAN AUXILIARY SWITCH – On closure of the main fa

for remote indication. 1 AMP, 24VAC max load. Use Class 1 field supplied wiring.

17) LIQUITECT SHUTDOWN AND DRY CONTACT – On LiquiTect activation, normally open dry contact is closed across terminals 58 &

59 for remote indication (LiquiTect sensor ordered separately). 1 AMP, 24VAC max load. Use Class 1 field supplied wiring.

NOTE: All low voltage terminal connections are spring-cage with a wire range of 28-12AWG.
NOTE: Items 11 and 12 may not be present if Unit supplier 120V utility option is selected.

DPN004587
Page :1 /3

Form No.: DPN001040_REV4

REV : 1
REV DATE : 1/19

LIEBERT DSE

Use shielded

Refer to specification sheet for total unit full load amps, wire size amps, and max overcurrent protection device size.

ELECTRICAL FIELD CONNECTIONS

DP060 UNIT DEFINITIONS AND LOCATIONS

DUAL POWER INPUT

STANDARD COMMUNICATION CONNECTIONS

18) RS485 BMS CONNECTION – Terminal TB3-1 is TX/RX+. Terminal TB3-2 is TX/RX-. Terminal TB3-3 is earth ground.

cable with 120ohm characteristic impedance. (Supplied by other).

19) CANBUS REMOTE SENSOR CONNECTION(P67) – Remove the inserted plug from this connector and attach the remote sensor

cable to power and communicate with Liebert remote Temperature/humidity sensors. Use shielded cable with 120ohm characteristic
impedance. (Supplied by other).

20) ETHERNET BMS CONNECTION(P74) – RJ-45 connection for connecting to BMS Ethernet network. Use Class 5 shielded cable

(Supplied by other).

21) ETHERNET UNIT TO UNIT CONNECTION(P64) – RJ-45 connection for connecting to other units. Use Class 5 shielded cable

(Supplied by other).
NOTE: All low voltage terminal connections are spring-cage with a wire range of 28-12AWG.
NOTE: All communication cables should be kept separate from high-voltage wiring.

OPTIONAL ELECTRICAL CONNECTIONS

22) SMOKE SENSOR ALARM – Factory wired dry contacts from smoke sensor are 91-common, 92-Normally Open, and 93-Normally

Closed. Supervised contacts, 80 & 81, open on sensor trouble indication. This smoke sensor is not intended to function as, or

replace, any room smoke detection system that may be required by local or national codes. 1 AMP, 24VAC max load. Use Class 1

field supplied wiring.

23) CONDENSATE ALARM – On pump high water indication, normally open dry contact is closed across terminals 88 & 89 for remote

indication. 1 AMP, 24VAC max load. Use Class 1 field supplied wiring.

NOTE: Terminals for item 22 and 23 are always present. Refer to the order to verify if the options are installed on the unit.

DPN004587
Page :2 /3

Form No.: DPN001040_REV4

REV : 1
REV DATE : 1/19

LIEBERT DSE

ELECTRICAL FIELD CONNECTIONS

DP060 UNIT DEFINITIONS AND LOCATIONS

DUAL POWER INPUT

4

5

7

6

3

12

4

5 7

6

3/4"
19

13

200A DISCONNECT VIEW

7 3/4"

2"
51

197

3"
76

FRONT

6"
152

3/4"
19

FOR REFERENCE

8 11

14 9 18

17 10

16 23

15

FACTORY USE ONLY

19

21

20

22

60A DISCONNECT VIEW

Form No.: DPN001040_REV4

4 1/4"
109

3"
75

DPN004587
Page :3 /3

4 1/4"
109

3"
75

2

2

1

BACK

BOTTOM VIEW

6 1/2"
165

3/4"
19

REV : 1
REV DATE : 1/19

LIEBERT DSE

DP060 ENCLOSURE ELECTRICAL LOCATIONS

EVAPORATOR
ELECTRIC PANEL
(SIDE ENTRANCE DOOR
REMOVED FOR CLARITY)

Form No.: DPN001040_REV4

DPN004591
Page :1 /5

CONDENSER AND
ECONOPHASE
ELECTRIC
PANEL

UNIT TRANSFORMER
(208V, 240V, & 575V)

CUSTOMER CONNECTION
ELECTRIC PANEL
(SINGLE POWER INPUT SHOWN)

REV : 1
REV DATE : 7/18

LIEBERT DSE

DP060 CUSTOMER CONNECTION ELECTRICAL PANEL

COMPONENT DEFINITIONS AND LOCATIONS

DUAL POWER INPUT

DISCONNECT HANDLE

SOURCE 1

FUSED DISCONNECT

SOURCE 1

SOURCE 2
DISCONNECT HANDLE

TRANSFER
CONTROLLER

WIRE
DUCT

GND
LUG

FUSED DISCONNECT

SOURCE 2

Form No.: DPN001040_REV4

DPN004591
Page :2 /5

ATS

CONTROLLER

POWER
METER,
POWER

ATS CONTROLLER

FUSES

(OPTIONAL)

TRANSFORMERS,

RELAYS,

AND GND BAR

LOW VOLTAGE TERMINALS

CUSTOMER CONNECTIONS

120V

UTILITY

GND
LUG

120V UTILITY

CIRCUIT

UNIT

FUSES

208V, 230V, &

575V UNITS

BREAKERS

AND

TERMINALS

(OPTIONAL)

POWER

DISTRIBUTION

BLOCK

AND GND

DISTRIBUTION

LUG

CHANGE-OVER

CIRCUIT

CONTACTORS

TRANSFORMER

CONNECTORS

COMMUNICATION

ETHERNET SWITCH

FIVE PORT (OPTIONAL)

WIRE

DUCT

REV : 1
REV DATE : 7/18

LIEBERT DSE

DP060 CUSTOMER CONNECTION ELECTRICAL PANEL

COMPONENT DEFINITIONS AND LOCATIONS

SINGLE POWER INPUT

DISCONNECT HANDLE

POWER METER

ASSEMBLY

(OPTIONAL)

LOW VOLTAGE TERMINALS

CUSTOMER CONNECTIONS

WIRE
DUCT

FUSED DISCONNECT

CONNECTORS

COMMUNICATION

ETHERNET SWITCH

FIVE PORT (OPTIONAL)

UNIT

TRANSFORMER

FUSES

208V, 230V, &

575V UNITS

GND
LUG

120V UTILITY

CIRCUIT

BREAKERS

AND
TERMINALS
(OPTIONAL)

POWER

DISTRIBUTION BLOCK

AND GND

DISTRIBUTION LUG

WIRE
DUCT

Form No.: DPN001040_REV4

DPN004591
Page :3 /5

REV : 1
REV DATE : 7/18

LIEBERT DSE

DP060 CONDENSER AND ECONOPHASE ELECTRICAL PANEL

COMPONENT DEFINITIONS AND LOCATIONS

24VAC TRANSFORMER

AND TERMINALS

ECONOPHASE

CONTROL

BOARD

CONDENSER

CONTROL

BOARD

LOW VOLT

TERMINALS

FACTORY USE

PUMP VFD

CONDENSER

FAN

FUSES

CONDENSER

FAN

CONTACTORS

PUMP

FUSES

PUMP

CONTACTOR

POWER

DISTRIBUTION

POWER

DISCONNECT

AND GND

LUGS

Form No.: DPN001040_REV4

DPN004591
Page :4 /5

REV : 1
REV DATE : 7/18

LIEBERT DSE

DP060 EVAPORATOR ELECTRICAL PANEL

COMPONENT DEFINITIONS AND LOCATIONS

POWER

BLOCK

FUSED DISCONNECT

AND GND LUG

CONDENSATE

PUMP

FUSES

(OPTIONAL)

24VDC POWER SUPPLY

AND BUFFER

GND
BAR

120V UTILITY

TRANSFORMER

FUSES

(OPTIONAL)

CRANKCASE

HEATER

FUSES

COMPRESSOR

FUSES

COMPRESSOR

CONTACTOR

FAN

CONTACTOR

COMPRESSOR

AND OPTION

FAN

FUSES

ISOLATION

TRANSFORMER

AND TRANSFORMER

TERMINALS

CONTROL

TRANSFORMER

RELAYS

CONTROL

FUSES

FAN

LOW

VOLT

TERMINALS

LOW VOLT TERMINALS

FACTORY USE ONLY

EXTRA

ALARM

RELAY

(OPTIONAL)

RELAYS

FOR

OPTIONS

FILTER

CLOG

CONTROL

SMOKE

DETECTOR

BOARD

(OPTIONAL)

INTELLISLOT AND

UNITIY CARDS

(OPTIONAL)

ICOM

BOARD

LOW VOLT

BOARD

24VDC BUFFER

RELAYS

(OPTIONAL)

FUSE

Form No.: DPN001040_REV4

DPN004591
Page :5 /5

REV : 1
REV DATE : 7/18

LIEBERT DSE

COMPONENT LOCATION DIAGRAM

EVAPORATOR COMPARTMENT DP060 TOP INLET/FRONT SUPPLY

8

4

7

2

10

11

Form No.: DPN001040_REV4

3

DPN004597
Page :1 /1

Front of unit

9

5

6

1

1 Compressor
2 Evaporator Coil
3 EC Fan
4 Interior 120V Light
5 Light Switch
6 GFI Outlet
7 Filters (qty. 3)
8 Duct Collar
9 Liebert EconoPhase
10 Condenser Fans
11 Condenser Coil

REV : 1
REV DATE : 7/18

LIEBERT DSE

AIRFLOW SCHEMATIC

DP060 TOP INLET/FRONT SUPPLY

Return Air In

Some panels removed for clarity

Front of unit

Supply Air Out

Form No.: DPN001040_REV4

DPN004598
Page :1 /1

REV : 1
REV DATE : 9/18

LIEBERT DSE

EVAPORATOR DUCTING DIMENSIONAL DATA

DP060 TOP INLET/FRONT SUPPLY

34"
864mm

2 5/8"
68mm

76 1/8"
1933mm

Top View

4 1/4"
107mm

11 1/8"
283mm

7 1/4"
184mm

19 3/8"
491mm

55 1/8"
1400mm

Front View

2 3/8"

60mm
At Center
of Duct Flange

105 1/4"
2673mm

2 7/8"
72mm

At Center

of Duct Flange

3 3/8"

84mm
At Rear of
Duct Flange

Right Side View

Form No.: DPN001040_REV4

Notes:

1. Seal all ducts.

DPN004599
Page :1 /1

REV : 1
REV DATE : 9/18

42"
1067mm

LIEBERT DSE

CABINET & ANCHOR DIMENSIONAL DATA

DP060 TOP INLET/FRONT SUPPLY

Shaded area indicates
required minimum clearance
for Electrical Box and
Component access.

1"
25mm

Typ. (2) Places

Shaded area indicates
recommended minimum
clearance between units
when lifting lugs are removed.

Removable
Lifting Lugs
(Typ. 4 Plcs.)

Forklift access
Typ. both sides

Form No.: DPN001040_REV4

DPN004600
Page :1 /2

Top View

83 3/4"
2127mm

91"
2310mm

Front View

83 1/2"
2121mm

1 5/8"
41mm

Typ.

105 1/4"
2673mm

Overall

Height

5 7/8"
150mm

Typ. (4) Plcs.

Shaded area indicates

recommended minimum

vertical clearance above fans.

Right Side View

72"
1829mm

134 1/2"
3418mm

18 1/2"
468mm

3 3/4"
96mm

Typ. (4) Plcs.

72"
1829mm

104 1/2"
2653mm

Height from top of fans

to bottom of unit

6 1/2"
164mm

REV : 3
REV DATE : 2/19

5 3/4"
146mm

24"
610mm

Typ.

3"
76mm

Typ.

Typ.

LIEBERT DSE

CABINET & ANCHOR DIMENSIONAL DATA

DP060 TOP INLET/FRONT SUPPLY

134"

32"
813mm

Typ.

3404mm

5/8"

O

16mm

Anchor Holes

Typ. (18) Plcs.

1"
25mm

Rear

of

Unit

Bottom View

Front

of

Unit

1"
25mm

83 1/2"
2121mm

Form No.: DPN001040_REV4

Notes:

1. Underside of base of unit. Components removed for clarity.

2. Mounting requirement details such as brand type, embedment depth, edge spacing, anchor spacing, concrete strength, wall bracing, and special inspection
must be outlined and approved by the project Structural Engineer of Record.

DPN004600
Page :2 /2

REV : 3
REV DATE : 2/19

LIEBERT DSE

CONDENSATE DRAIN ACCESS & LOCATION

DP060 PERIMETER UNIT

Form No.: DPN001040_REV4

Condensate Drain Location

Rear

of

Unit

33 3/4"
857mm

51"
1294mm

Bottom View

showing Condensate Drain locating dimensions

DPN004601
Page :1 /1

A

3/4” NPT female fitting
for Condensate Drain

DETAIL A

Condensate Drain Location

REV : 1
REV DATE : 7/18

LIEBERT DSE

EVAPORATOR COMPARTMENT SERVICE AREA

Notes:

1. Evaporator Coil is removed into service area and through either door.
Requires 36" (914mm) X 60" (1524mm) clearance outside of door area.

2. NOTICE: Risk of equipment damage. Evaporator accent panel cannot be opened
while exterior man door is closed.

DP060 TOP INLET/FRONT SUPPLY

Access Door

swings inward

as shown

(Typ. both sides)

36"

1

914mm

Shaded are indicates

minimum clearance

required in front of

Liebert DSE unit.

36"
914mm

Filter
Access

120V
Interior
Light

Top View of Evaporator Section

Form No.: DPN001040_REV4

Side View of Evaporator Compartment

Access Door removed for clarity

DPN004602
Page :1 /1

120V Interior
Light Switch

GFCI Outlet

Front View of Evaporator Unit

Wall & Access Doors removed for clarity

REV : 2
REV DATE : 9/18

LIEBERT DSE

Wire range and tightening torque will vary based on

On any alarm, normally open dry contact is closed across terminals 75 & 76 for remote indication. 1 AMP, 24VAC

Terminals for the connection of a field supplied 120V 20A utility power to feed the light and

alarm, two additional normally open contacts are closed across terminals 94 & 95 and 96 & 97 for

dry contact is closed across terminals 84 & 85

ELECTRICAL FIELD CONNECTIONS

DP060 UNIT DEFINITIONS AND LOCATIONS

SINGLE POWER INPUT

STANDARD ELECTRICAL CONNECTIONS

1) HIGH VOLTAGE ENTRANCE – This area will be used for the high voltage fittings. Enclosure is not provided with holes or knockouts,

which must be done by the installer in the field. The fittings used must have the proper environmental rating per code.

2) LOW VOLTAGE ENTRANCE – This area will be used for the low voltage and communication fittings. Enclosure is not provided with

holes or knockouts, which must be done by the installer in the field. The fittings used must have the proper environmental rating per
code.

3) HIGH VOLTAGE WIRE DUCT – Wire duct to be used by the installer for high voltage wire routing.

4) MAIN UNIT POWER CONNECTIONS – Terminals are located on top of the locking disconnect switch. See side of disconnect switch

for wire range and tightening torque. Three phase service not provided by Liebert.
disconnect size. Refer to label on side of disconnect.

5) EARTH GROUND CONNECTION FOR MAIN UNIT POWER – Terminal for field supplied Source 1 earth grounding wire. Earth

grounding required for Liebert units. 14-2AWG wire range, 275 in-lb wire tightening torque.

6) REMOTE SHUTDOWN - Replace existing jumper between terminals 37 & 38 with field supplied normally closed switch having a

minimum 75VA, 24VAC rating. Use field supplied Class 1 wiring.

7) CUSTOMER ALARM INPUTS – Terminals for field supplied, normally open contacts, having a minimum 75va, 24vac rating, between

terminals 24 & 50, 51, 56. Use field supplied Class 1 wiring. Terminal availability varies by unit options.

8) COMMON ALARM –

max load. Use Class 1 field supplied wiring.

9) REMOTE HUMIDIFIER – On any call for humidification, normally open dry contact is closed across terminals 11 & 12 to signal field

supplied remote humidifier. 1 AMP, 24VAC max load. Use Class 1 field supplied wiring.

10) FIELD SUPPLIED 120V UTILITY POWER –

service electrical outlet. 22-8AWG wire range, 14.2lb-in tightening torque.

11) EARTH GROUNDING CONNECTION FOR FIELD SUPPLIED 120V UTILITY POWER - Terminal for field supplied 120V earth

grounding wire. Earth grounding required for Liebert units. 14-2AWG wire range, 275 in-lb wire tightening torque.

LOW VOLTAGE TERMINAL CONNECTIONS

12) EXTRA REMOTE UNIT SHUTDOWN – Two additional contact pairs available for unit shutdown (labeled as 37B & 38B, 37C & 38C).

Replace jumpers with field supplied normally closed switch having a minimum 75VA, 24VAC rating. Use field supplied Class 1 wiring.

13) EXTRA COMMON ALARM – On any

remote indication. 1 AMP, 24VAC max load. Use Class 1 field supplied wiring.

14) MAIN FAN AUXILIARY SWITCH – On closure of the main fan contactor, normally open

for remote indication. 1 AMP, 24VAC max load. Use Class 1 field supplied wiring.

15) LIQUITECT SHUTDOWN AND DRY CONTACT – On LiquiTect activation, normally open dry contact is closed across terminals 58 &

59 for remote indication (LiquiTect sensor ordered separately). 1 AMP, 24VAC max load. Use Class 1 field supplied wiring.

NOTE: All low voltage terminal connections are spring-cage with a wire range of 28-12AWG.
NOTE: Items 10 and 11 are not present when the Unit supplied 120V utility option is selected.

DPN004732
Page :1 /3

Form No.: DPN001040_REV4

REV : 1
REV DATE : 1/19

LIEBERT DSE

Use shielded

Refer to specification sheet for

total unit full load amps, wire size amps, and max overcurrent protection device size.

ELECTRICAL FIELD CONNECTIONS

DP060 UNIT DEFINITIONS AND LOCATIONS

SINGLE POWER INPUT

STANDARD COMMUNICATION CONNECTIONS

16) RS485 BMS CONNECTION – Terminal TB3-1 is TX/RX+. Terminal TB3-2 is TX/RX-. Terminal TB3-3 is earth ground.

cable with 120ohm characteristic impedance. (Supplied by other).

17) CANBUS REMOTE SENSOR CONNECTION(P67) – Remove the inserted plug from this connector and attach the remote sensor

cable to power and communicate with Liebert remote Temperature/humidity sensors. Use shielded cable with 120ohm characteristic
impedance. (Supplied by other).

18) ETHERNET BMS CONNECTION(P74) – RJ-45 connection for connecting to BMS Ethernet network. Use Class 5 shielded cable

(Supplied by other).

19) ETHERNET UNIT TO UNIT CONNECTION(P64) – RJ-45 connection for connecting to other units. Use Class 5 shielded cable

(Supplied by other).
NOTE: All low voltage terminal connections are spring-cage with a wire range of 28-12AWG.
NOTE: All communication cables should be separated from high-voltage wiring.

OPTIONAL ELECTRICAL CONNECTIONS

20) SMOKE SENSOR ALARM – Factory wired dry contacts from smoke sensor are 91-common, 92-Normally Open, and 93-Normally

Closed. Supervised contacts, 80 & 81, open on sensor trouble indication. This smoke sensor is not intended to function as, or

replace, any room smoke detection system that may be required by local or national codes. 1 AMP, 24VAC max load. Use Class 1

field supplied wiring.

21) CONDENSATE ALARM – Terminals are present with condensate pump option. On pump high water indication, normally open dry

contact is closed across terminals 88 & 89 for remote indication. 1 AMP, 24VAC max load. Use Class 1 field supplied wiring.

NOTE: All low voltage terminal connections are spring-cage with a wire range of 28-12AWG.
NOTE: Terminals for item 20 and 21 are always present. Refer to the order to verify if the options are present.

DPN004732
Page :2 /3

Form No.: DPN001040_REV4

REV : 1
REV DATE : 1/19

LIEBERT DSE

ELECTRICAL FIELD CONNECTIONS

DP060 UNIT DEFINITIONS AND LOCATIONS

SINGLE POWER INPUT

4

5

11

3

10

FACTORY USE ONLY

17

6 9

12 7 16

19

Form No.: DPN001040_REV4

2"
51

4 1/4"
109

3"
76

3/4"
19

DPN004732
Page :3 /3

200A DISCONNECT VIEW

3"
76

FRONT

4 1/4"
109

2

7 3/4"
197

2

BOTTOM VIEW

8"
203

1

BACK

3/4"
19

6 1/2"
165

3/4"
20

15 8

18

20

14 21

13

REV : 1
REV DATE : 1/19

LIEBERT DSE

INSTALLATION & SERVICE CLEARANCE DATA

DP060

41 1/8"
1044mm

36"
914mm

Typ.

1"
25mm

Typ.

1

60"
1524mm

1

2

2"
51mm

Between Units

2

Form No.: DPN001040_REV4

DPN004756
Page :1 /1

1

42"
1067mm

Typ.

Top View

Rear of Units

Notes:

1. Required clearance between the end unit and the nearest obstruction.

2. Evaporator Coil may be removed into service area and through either door.

3. See DPN004600 fo additional dimensional information.

4. Multiple units can be placed side by side. Two units shown for reference.

REV : 0
REV DATE : 5/18

Vertiv | Liebert® DSE060™ Installer/User G uide

VertivCo.com | Vertiv Headquarters, 1050 Dearborn Drive, Columbus, OH, 43085, USA

© 2018 VertivCo. Allrights reserved. Vertiv and the Vertivlogo are trademarks or registered trademarks of Vertiv Co. Allother names and logos referred to
are trade names, trademarks or registered trademarks of their respective owners. While every precaution has been taken to ensure acc uracy and
completeness herein, Vertiv Co. assumes no responsibility, and disclaims all liability, for damages resulting from use of this information or for anyerrors or
omissions. Specifications are subject to change without notice.

SL-18955_REV1/590-1836-501B