Eaton E02A User manual

Eaton Micro Data Center
E02A Integrated rack type air conditioner
User manual

ii E02A INTEGRATED RACK TYPE AIR CONDITIONER UM.ICUBE2.0-IRTAC.SG.0822 August 2022 www.eaton.com
DISCLAIMER OF WARRANTIES AND LIMITATION OF LIABILITY
The information, recommendations, descriptions and safety notations in this document are based on Eaton
Corporation’s (“Eaton”) experience and judgment and may not cover all contingencies. If further information is
required, an Eaton sales office should be consulted. Sale of the product shown in this literature is subject to the
terms and conditions outlined in appropriate Eaton selling policies or other contractual agreement between Eaton
and the purchaser.
THERE ARE NO UNDERSTANDINGS, AGREEMENTS, WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING
WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE OR MERCHANTABILITY, OTHER THAN THOSE
SPECIFICALLY SET OUT IN ANY EXISTING CONTRACT BETWEEN THE PARTIES. ANY SUCH CONTRACT STATES
THE ENTIRE OBLIGATION OF EATON. THE CONTENTS OF THIS DOCUMENT SHALL NOT BECOME PART OF
OR MODIFY ANY CONTRACT BETWEEN THE PARTIES.
In no event will Eaton be responsible to the purchaser or user in contract, in tort (including negligence), strict
liability or other-wise for any special, indirect, incidental or consequential damage or loss whatsoever, including
but not limited to damage or loss of use of equipment, plant or power system, cost of capital, loss of power,
additional expenses in the use of existing power facilities, or claims against the purchaser or user by its customers
resulting from the use of the information, recommendations and descriptions contained herein. The information
contained in this manual is subject to change without notice.

E02A INTEGRATED RACK TYPE AIR CONDITIONER UM.ICUBE2.0-IRTAC.SG.0822 August 2022 www.eaton.com iii
Table of Contents
1. Introduction ........................................................................1
1.1 Foreword ............................................................................... 1
1.2 Air conditioner description .................................................................. 1
1.2.1 Principles of function ................................................................ 1
1.2.2 Operating conditions ................................................................ 2
1.3 Standards ............................................................................... 2
2. Safety notices ......................................................................3
2.1 Transport................................................................................ 3
2.2 Storage ................................................................................. 3
2.3 Unpacking............................................................................... 3
2.4 Installation .............................................................................. 3
3. Installation and operation ............................................................4
3.1 Mechanical installation ..................................................................... 4
3.2 Electrical installation....................................................................... 4
3.3 Power-on steps........................................................................... 6
4. System function introduction .........................................................7
4.1 Cooling ................................................................................. 7
4.2 Heating (Option) .......................................................................... 7
4.3 Component control mode .................................................................. 8
4.4 Unit sequencing control (option) ............................................................. 8
4.4.1 Time Switching ..................................................................... 8
4.4.2 Temperature switch ................................................................. 8
4.4.3 Both working with high temperature .................................................... 8
4.4.4 Disturbance switching ..................................................................8
4.5 Self testing ............................................................................... 8
4.6 Hydrogen discharging/emergency fan (option) .................................................... 9
4.7 Alarm .................................................................................. 9
4.8 Unit menu structure ........................................................................10
4.8.1 Operation interface ...................................................................10
4.8.2 Menu structure .................................................................... 10
5. Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
5.1 Daily maintenance ..........................................................................12
5.2 Compressor maintenance ....................................................................12
5.3 Common fault. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
5.4 Charge refrigerant ..........................................................................13
5.5 Tools preparation ...........................................................................13
5.6 Disassemble the unit .........................................................................15
5.7 Charge refrigerant ..........................................................................15
5.8 Power on and test the air conditioner...........................................................17
5.9 Reinstall the air conditioner into the cabinet .....................................................17

E02A INTEGRATED RACK TYPE AIR CONDITIONER UM.ICUBE2.0-IRTAC.SG.0822 August 2022 www.eaton.com1
Introduction
1. Introduction
1.1 Foreword
ote:N All of the operations of this product should be performed by professional engineers and technicians.
This manual can only be used to guide the installation and operation of the integrated rack type air conditioner.
The manual content includes the functional description and regular maintenance of the unit. In this manual, the
safety tips and warning signs are described as follows:
DANGER!
If the measures described in the following are not strictly observed there is danger to life and health.
HAZARD!
If the measures described in the following are not strictly observed there is danger to life and health due to
electrical shock.
CAUTION!
If the measures described in the following are not strictly observed material damage may be caused.
1.2 Air conditioner description
The integrated rack type air conditioner is a cooling product developed for the Eaton iCUBE micro data center. This
air conditioner’s frequency can be regulated. It has cooling capacity regulating function, and the fans can regulate
speed automatically.
Figure 1.1 Function Diagram
1.2.1 Principles of function
The refrigerant is compressed by compressor (1) into high temperature and high pressure gas; At the condenser
side (3), the outdoor air is drawn or eliminated from the bottom by the condensing fan (2), the heat will be dissipated
into the surrounding ambient air through the condenser (3), and the refrigerant gas changes to liquid. After passing
through the expansive valve (4), the refrigerant pressure drops and changes to two phase. In the evaporator (6), the
refrigerant absorbs the heat inside the cabinet and evaporates. The evaporation fan (5) will suctioned out hot air from
the inside of the cabinet. After passing through the evaporator, the air is cooled and discharged into the front channel
of the cabinet. At the same time, the air in the cabinet is dehumidified.

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Introduction
E02A INTEGRATED RACK TYPE AIR CONDITIONER UM.ICUBE2.0-IRTAC.SG.0822 August 2022 www.eaton.com
Figure 1.2 Working Principle Diagram
1.2.2 Operating conditions
• Input Power
220VAC±15%, 50/60Hz
• External Ambient temperature:
-40˚C ~ 50˚C
ote:N Please read the nameplate parameters on the air conditioner carefully. The actual technical parameters shall
be subject to the nameplate name.
1.3 Standards
Standard Description
GB/T 17626.7-1998 EMC
GB470 6.1 Safety of household appliances or similar electric appliance
GB4798.1 Environmental conditions existing in the application of electric and electronic product – Storage
GB4798.2 Environmental conditions existing in the application of electric and electronic product – Transportation
GB4798.3 Environmental conditions existing in the application of electric and electronic product – Use

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Safety notices
E02A INTEGRATED RACK TYPE AIR CONDITIONER UM.ICUBE2.0-IRTAC.SG.0822 August 2022 www.eaton.com
2. Safety notices
In order to use the equipment correctly, the following safety precautions should be strictly followed.
2.1 Transport
• Keep the air conditioner in a horizontal state during transportation.
• If the cabinet needs to be transported, please remove the air conditioner and pack it separately
before transportation.
2.2 Storage
• Storage environment should not exceed 70°.
• Keep the air conditioner in a horizontal state during storage.
2.3 Unpacking
• Prior to and during unpacking, make a visual inspection of the air conditioner to see whether any damage has
occurred during transportation. Pay special attention to loose parts, dents, scratches and oil leakages.
• Any damage must be reported immediately to the forwarder agent.
• Before disposing of packing material ensure that it does not contain any loose components.
2.4 Installation
• Select a site for the enclosure with good ventilation;
• The location should be free from excessive dirt and moisture;
• The ambient temperature does not exceed +45˚C;
• The enclosure is sealed on all sides (IP54). If the seal is not good, too much condensate may be generated;
• Air inlet and outlet should not be blocked by obstacles inside the enclosure at the inside of the enclosure;
• The duct size outside the air conditioner cabinet should not be less than the limit value in the following figure 2.
• Units are only fitted horizontally in the specified position. The maximum inclination angle shall not be greater
than 2°;
• Losses from the components installed in the enclosure must not exceed the specific refrigeration capacity of
the air conditioner itself;
• The user must not modify the air conditioner in any way.
Figure 2 Distance Diagram

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Installation and operation
E02A INTEGRATED RACK TYPE AIR CONDITIONER UM.ICUBE2.0-IRTAC.SG.0822 August 2022 www.eaton.com
3. Installation and operation
3.1 Mechanical installation
Before the installation of air conditioner, the fitting surface of cabinet shall be properly opened with vent and
screw hole, where the hole size shall refer to the appearance size figure as provided by the manufacturer.
Mounting:
1 Insert the air conditioner into the cabinet along the guide rail direction.
2 Fix the installation flange on the cabinet’s front surface as shown in the figure 3.1 and 3.2 below:
Figure 3.1 Installation Diagram
Figure 3.2
3.2 Electrical installation
CAUTION!
As the rack type air conditioner is connected to the power supply via the circuit protection device,
the appropriate circuit protection device and the power cable should be chosen according to the air
conditioning nameplate and technical parameters.
CAUTION!
Too high voltage may lead to damage of cabinet air conditioner. Please follow the voltage requirement
marked on the nameplate to switch on the air conditioner.

5
Installation and operation
E02A INTEGRATED RACK TYPE AIR CONDITIONER UM.ICUBE2.0-IRTAC.SG.0822 August 2022 www.eaton.com
CAUTION!
In order to avoid any damaging effects, before turning on the power supply, the cabinet air conditioner
must be reliably earthed.
Figure 3.3
ote:N The power input port identifier is subject to the specific unit silk printing
or
AC input
printing
Figure 3.4
References to common (copper wire) selection:
Rated current ≤5A ≤10A ≤15A ≤25A
Power line diameter 1.0 mm 1.5 mm 2.5 mm 4 mm
Connecting interface (The power input terminal will be subject to application instructions)
Connecting interface:
Port Definition
Power input L1/L L: 220VAC power input cable L; L1: 110VAC power input cable L
L2/N N: 220VAC power input cable N; L2: 110VAC power input cable L
PE Grounding wire of the air conditioner
Alarm output NC The first public alarm dry nod (NC)
COM The first public alarm dry nod (COM)
NO The first public alarm dry nod (NO) (Option)
1The second public alarm dry nod (COM) (Option)
2The second public alarm dry nod (NO) (Option)
Signal input 3N/A
4Hydrogen discharge / emergency fan dry contact (FG) (Option)
5Hydrogen discharge / emergency fan dry contact (NO) (Option)
6Hydrogen discharge / emergency fan dry contact (COM) (Option)
7Door open alarm input (option)
8Door open alarm input (option)
communication ports +RS485 communication ports (+) (Option)
-RS485 communication ports (-) (Option)

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Installation and operation
E02A INTEGRATED RACK TYPE AIR CONDITIONER UM.ICUBE2.0-IRTAC.SG.0822 August 2022 www.eaton.com
• Alarm output (option):
The unit provides alarm output dry contact. If there is no alarm, the dry contact is close. When there is alarm,
the dry contact will open. Contact capacity: resistive load 5A@30VDC/5A@250VAC.
3.3 Power-on steps
Firstly make sure the AC voltage is in accordance with the standard, and then close the power input switch. 30s
later the internal cycle fan of the unit will be started. After delay time about 3min, the unit select operation mode
according to the unit’s.

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System function introduction
E02A INTEGRATED RACK TYPE AIR CONDITIONER UM.ICUBE2.0-IRTAC.SG.0822 August 2022 www.eaton.com
4. System function introduction
The operation of the air conditioner is automatically controlled according to the temperature inside the cabinet. The
controller detects the return air temperature by temperature sensor and compares it with the set point to judge,
and then controls the compressor or fan.
4.1 Cooling
Cooling stop point=cooling set point cooling Delta T. When the rack internal temperature exceeds the cooling set
point (CoolingSP), the cooling will start; when the cabinet internal temperature is lower than the cooling stop
point, the cooling stops.
Parameter Default value Setting range
CoolSP 29˚C [20~50]
Cool T3˚C [1~10]
INHT 65˚C [20~80]
Setting point description:
CoolSP: Set point when cooling starts.
Cool T: Temperature control sensitivity.
INHT: Internal high Temp. alarm point.
CAUTION!
For the reliable operation of the unit and the maximum energy efficiency, it is recommended that the user
should not randomly change the temperature set point.
4.2 Heating (Option)
Heating stop point=heating point+heating sensitivity. When the temperature inside the cabinet is lower than the
heating start-up point, the heating will start; when the temperature inside the cabinet is higher than the heating
stop point, the heating will stop.
Parameters Default value Setting range
HeatSP 0˚C [-5~15]
Heat T10˚C [1~15]
Setting point description:
HeatSP: Point when heating starts.
Cool T: Temperature control sensitivity.
CAUTION!
For the reliable operation of the unit and the maximum energy efficiency, it is recommended that the users
should not randomly change the temperature set point.