FRIEDHELM LOH Rittal LCP Rack DX 20 User manual

LCP Rack DX 20
LCP Inline DX 20
3313.290
3313.390
Assembly and operating instructions

Foreword
2Rittal Liquid Cooling Package
Foreword
Dear Customer!
Thank you for choosing a Rittal Liquid Cooling Package
DX (referred to hereafter also as "LCP DX").
This documentation applies to device LCP Inline DX 20
(DX = Direct Expansion).
Please take the time to read this documentation carefully
and pay particular attention to the safety instructions in
the text and to section 2 "Safety instructions".
This is the prerequisite for:
– secure assembly of the LCP DX
– safe handling and
– the most trouble-free operation possible.
Please keep the complete documentation readily availa-
ble so that it is always on hand when needed.
We wish you every success!
Your,
Rittal GmbH & Co. KG
Rittal GmbH & Co. KG
Auf dem Stützelberg
35745 Herborn
Germany
Tel.: [phone]
Fax: [phone]
E-mail: [e-mail]
www.rittal.com
www.rittal.de
We are always happy to answer any technical questions
regarding our entire range of products.

Rittal Liquid Cooling Package 3
Contents
Contents
1 Notes on documentation .................. 5
1.1 CE labelling................................................... 5
1.2 Information on electromagnetic compatibility. 5
1.3 Storing the documents.................................. 5
1.4 Symbols in these operating instructions ........ 5
1.5 Other applicable documents ......................... 5
1.6 Normative instructions .................................. 5
1.6.1 Legal information concerning the operating
instructions ........................................................... 5
1.6.2 Copyright ............................................................. 5
2 Safety instructions ............................ 6
2.1 Important safety instructions ......................... 6
2.2 Service and technical staff ............................ 7
2.2.1 Personal safety equipment ................................... 7
2.3 Operator requirements.................................. 7
2.3.1 Abbreviated instructions ....................................... 7
2.3.2 System log ........................................................... 7
2.3.3 F-gas regulation ................................................... 8
2.3.4 Chemicals – Climate Protection Ordinance ........... 8
2.4 RoHS compliance ......................................... 8
3 Device description ............................ 9
3.1 General functional description ....................... 9
3.2 Air routing ..................................................... 9
3.2.1 General ................................................................ 9
3.2.2 LCP Rack DX ..................................................... 10
3.2.3 LCP Inline DX ..................................................... 11
3.3 Equipment assembly................................... 11
3.3.1 Unit components ................................................ 11
3.3.2 Coolant circuit .................................................... 12
3.3.3 External condenser ............................................. 12
3.3.4 Fan module ........................................................ 13
3.4 Proper and improper usage ........................ 13
3.5 Supply scope of a LCP DX.......................... 13
4 Transportation and handling ........... 14
4.1 Transportation ............................................ 14
4.2 Unpacking .................................................. 14
5 Assembly and siting ....................... 15
5.1 General ....................................................... 15
5.1.1 Installation site requirements ............................... 15
5.1.2 Prepare the installation room .............................. 16
5.1.3 Installation guidelines .......................................... 16
5.2 Assembly procedure ................................... 16
5.2.1 General .............................................................. 16
5.2.2 Fit the attenuators .............................................. 17
5.2.3 Dismantle the side panels ................................... 17
5.2.4 Seal the server enclosure .................................... 17
5.2.5 Installation and baying of the LCP DX ................. 18
5.2.6 Mounting the side panel ..................................... 19
5.3 External condenser ..................................... 19
6 Installation ...................................... 21
6.1 General ....................................................... 21
6.2 Notes on pipework...................................... 21
6.3 Connecting the condensate discharge ........ 24
6.4 Electrical connection .................................. 25
6.4.1 General .............................................................. 25
6.4.2 Connecting the LCP DX ..................................... 26
6.4.3 Connecting the external condenser .................... 26
6.5 Checking the entire system prior to commis-
sioning ....................................................... 27
7 Operation ....................................... 28
7.1 Control and display components................ 28
7.2 Switching the LCP DX on and off ............... 28
7.2.1 Switching on the LCP DX and the external
condenser .......................................................... 28
7.2.2 Switching off the LCP DX and the external
condenser .......................................................... 28
7.2.3 Switching off in an emergency ............................ 28
7.3 Layout of the user interface ........................ 28
7.4 General operating instructions.................... 28
7.4.1 Moving between menus ..................................... 28
7.4.2 Changing parameter values ................................ 28
7.5 Start screen ............................................... 28
7.6 Menu level A "On/Off Unit" ......................... 29
7.6.1 Menu A01 .......................................................... 29
7.6.2 Menu A02 .......................................................... 29
7.7 Menu level B "Setpoint".............................. 29
7.7.1 Menu B01 .......................................................... 29
7.7.2 Menu B02 .......................................................... 29
7.8 Menu level C "Clock/Scheduler"................. 30
7.8.1 Menu C01 .......................................................... 30
7.8.2 Menu C02 – C04 ................................................ 30
7.8.3 Menu C05 .......................................................... 30
7.9 Menu level D "Input/Output"....................... 30
7.9.1 Menu D01 – D06 ................................................ 30
7.9.2 Menu D07 – D12 ................................................ 30
7.9.3 Menu D13 .......................................................... 30
7.9.4 Menu D14 .......................................................... 30
7.9.5 Input/output menu .............................................. 30
7.10 Menu level E "Data logger" ......................... 30
7.10.1 Menu E01 .......................................................... 30
7.11 Menu level F "Board switch"....................... 30
7.12 Menu level G "Service" ............................... 31
7.12.1 Menu Ga "Change language" ............................. 31
7.12.2 Menu Gb "Information" ....................................... 31
7.12.3 Menu Gd "Working hours" .................................. 31
7.13 Configure the pCO Web card ..................... 31
7.13.1 Activate the factory bootswitch parameters ........ 31
7.13.2 Logging on to the pCO Web card ....................... 31
7.13.3 Configure the network interface .......................... 32
7.13.4 E-mail configuration ............................................ 32
7.13.5 LCP DX supervisory table ................................... 33
8 Troubleshooting ............................. 37
8.1 General ...................................................... 37
8.2 Alarm relay circuit....................................... 37
8.3 List of error messages and solutions .......... 38
9 Inspection and maintenance ........... 41
9.1 Safety instructions concerning maintenance
work .......................................................... 41
9.2 Cleaning the heat exchanger...................... 41

Contents
4Rittal Liquid Cooling Package
9.3 Fan installation ........................................... 41
10 Storage and disposal ...................... 43
11 Technical specifications .................. 44
11.1 LCP Rack DX/LCP Inline DX ...................... 44
11.2 Standard condenser .................................. 45
11.3 Low temperature unit ................................. 46
11.3.1 Low temperature condenser for ambient
temperatures up to -40 °C .................................. 46
11.3.2 Winter kit module for operating the low
temperature condenser unit ................................ 46
11.4 High temperature condenser for ambient
temperatures up to +53 °C ........................ 47
11.5 Total refrigerant charge .............................. 48
11.6 Refrigerant pipes........................................ 48
12 Spare parts .................................... 49
13 Accessories .................................... 50
14 SNMP card .................................... 51
15 Options .......................................... 52
15.1 General information.................................... 52
15.2 Humidifier................................................... 52
15.2.1 General information ............................................. 52
15.2.2 Activating the humidifier ...................................... 52
15.2.3 Setting the humidity setpoint ............................... 52
15.2.4 Technical specifications ...................................... 52
15.2.5 Installation prerequisites ...................................... 53
15.3 Electrical heaters........................................ 53
15.3.1 General information ............................................. 53
15.3.2 Activating the heaters .......................................... 54
15.3.3 Technical specifications ...................................... 54
15.4 Dehumidification ........................................ 54
15.4.1 General information ............................................. 54
15.4.2 Activating the dehumidification ............................ 54
15.4.3 Installation prerequisites ...................................... 55
15.5 Condensate pump ..................................... 55
15.5.1 General information ............................................. 55
15.5.2 Technical specifications ...................................... 55
15.5.3 Installation ........................................................... 55
15.6 Low temperature unit ................................. 56
15.6.1 General information ............................................. 56
15.6.2 Installation ........................................................... 56
15.7 High temperature condenser...................... 56
15.7.1 General information ............................................. 56
15.7.2 Installation prerequisites ...................................... 56
15.8 Air filter....................................................... 56
15.8.1 General information ............................................. 56
15.8.2 Setting the threshold ........................................... 56
15.8.3 Maintenance ....................................................... 57
15.9 Redundancy .............................................. 57
15.9.1 General information ............................................. 57
15.9.2 Installation ........................................................... 57
15.9.3 Activating the redundancy ................................... 57
15.9.4 Installation prerequisites ...................................... 58
16 Further technical information .......... 59
16.1 Coolant information .................................... 59
16.2 Cooling output ........................................... 59
16.3 Overview drawing....................................... 60
16.4 Circuit diagram........................................... 67
16.5 Piping and instrumentation diagram to
DIN EN 1861:1998 ..................................... 68
17 Glossary ........................................ 70
18 Customer service addresses .......... 71

Rittal Liquid Cooling Package 5
1 Notes on documentation
1
1 Notes on documentation
1.1 CE labelling
Rittal GmbH & Co. KG hereby confirms that the cooling
units in the LCP DX series are compliant with the EMC
Directive 2014/30/EC as well as with the Machinery Di-
rective 2006/42/EC. A corresponding declaration of
conformity has been issued and enclosed with the doc-
umentation package supplied with the unit.
The cooling unit bears the following mark.
1.2 Information on electromagnetic
compatibility
The LCP DX is a class A device as defined by EN 55022.
Under certain circumstances, the device may cause ra-
dio interference in domestic environments. In such cas-
es, the operator may be asked to implement appropriate
measures.
1.3 Storing the documents
The assembly and operating instructions as well as all
applicable documents are integral components of the
product. They must be handed to those persons who
are engaged with the unit and must always be available
and on hand for operating and maintenance personnel.
1.4 Symbols in these operating instructions
The following symbols are found in this documentation:
This symbol indicates an "Action Point" and shows
that you should carry out an operation/procedure.
1.5 Other applicable documents
The general plant documentation for the room where the
equipment is situated (construction specifications for the
ventilation system) also applies in conjunction with these
assembly and operating instructions.
1.6 Normative instructions
1.6.1 Legal information concerning the operating
instructions
We reserve the right to make changes in content. Rittal
GmbH & Co. KG is not responsible for any damage
which may result from failure to comply with these as-
sembly and operating instructions. The same applies to
failure to comply with the valid documentation for acces-
sories used.
1.6.2 Copyright
The distribution and duplication of this document and
the disclosure and use of its contents are prohibited un-
less expressly authorised.
Offenders will be liable for damages. All rights created by
a patent grant or registration of a utility model or design
are reserved.
Danger!
Hazardous situation which may lead to
death or serious injury if the instructions
are not followed.
Warning!
Hazardous situation which may lead to
death or serious injury if the instructions
are not followed.
Caution!
Hazardous situation which may lead to
(minor) injuries if the instructions are not
followed.
Note:
Information concerning individual proce-
dures, explanations, or tips for simplified ap-
proaches. Also indicates situations which
may result in material damage.

2 Safety instructions
2
6Rittal Liquid Cooling Package
2 Safety instructions
The devices in the LCP DX series produced by Rittal
GmbH & Co. KG are developed and produced with due
regard for all safety precautions. Nevertheless, the unit
still poses a number of unavoidable dangers and resid-
ual risks. The safety instructions provide you with an
overview of these dangers and the necessary safety pre-
cautions.
In the interests of your safety and the safety of others,
please read these safety instructions carefully before as-
sembly and commissioning of the LCP DX.
Follow the user information found in these instructions
and on the unit carefully.
2.1 Important safety instructions
Danger! Electric shock!
Contact with live electrical parts may be
lethal.
Before switching on, ensure that there is
no possibility of accidental contact with
live electrical parts.
The unit has a high discharge current.
Before connecting to the supply circuit,
therefore, it is essential to make a 6 mm²
earth connection (see section 16.4 "Cir-
cuit diagram").
Danger! Injury caused by fan impellers!
Keep persons and objects away from
the fan impellers! Do not remove covers
until the power supply is disconnected
and impellers are not moving! Always
use mechanical protection when work-
ing! Shut down the respective fan during
maintenance work! Tie long hair back!
Do not wear loose clothing! Fans start
up automatically following power dis-
ruptions!
Danger! Hot components may cause in-
jury!
In particular, never touch the compres-
sor and cables while operational and for
some time thereafter, as they may still
be hot.
Danger! Risk of poisoning from coolant
gases created under the influence of
heat.
When carrying out welding and solder-
ing work on the coolant circuit, use pro-
tective gloves and breathing apparatus
with a filter. In case of major leaks, stop
smoking immediately. Avoid fire and na-
ked flames.
Danger! Risk of injury from incorrect in-
stallation.
Installation of the coolant lines and other
media connections must only be carried
out by qualified plumbers or cooling
technology specialists.
Danger! Threat to the environment from
escaping coolant!
Never allow the coolant to escape into
the environment if at all possible (see
section2.3.3 "F-gas regulation").
Danger! Injury due to falling loads!
Do not stand under suspended loads
when transporting the unit with a hoist
trolley, a forklift, or a crane.
Warning! Danger of cut wounds, espe-
cially from the sharp edges of the fan
module and heat exchanger modules!
Put on protective gloves before begin-
ning assembly or cleaning work!
Warning! Injuries from escaping coolant!
Escaping gas may freeze the skin. Be-
fore working on the cooling circuit, put
on protective gloves and goggles.
Caution! Risk of malfunction or damage!
Do not modify the unit! Use only original
spare parts!

Rittal Liquid Cooling Package 7
2 Safety instructions
2
The electrical equipment protection devices must be
– adequate and useful for the intended use;
– placed correctly;
– easily identifiable which part(s) or circuit(s) of the
equipment is (are) affected (e.g. where necessary, with
durable marking).
Appropriate means must be provided to prevent unin-
tentional and/or erroneous closure of such devices from
the control unit or from other locations.
As a general requirement, please observe the following
five safety rules to DIN EN 50110-1 (VDE 0105-1) when
working in and on the LCP DX, in order to avoid acci-
dents:
1. Switch off!
Switch off the LCP DX at the master switch.
2. Prevent reactivation!
3. Ensure that all poles are de-energised!
4. Earth and short-circuit!
5. Cover or shield adjacent, live parts
2.2 Service and technical staff
The installation, commissioning, maintenance and repair
of this unit may only be carried out by trained, qualified
mechanical and electro-technical personnel.
Only properly instructed personnel may service a unit
while in operation.
2.2.1 Personal safety equipment
Personal safety equipment is to be worn during any
work on this unit when personnel might come into con-
tact with refrigerant and in general for all maintenance
work (see section 16.1 "Coolant information"). As a min-
imum requirement, personal safety equipment is com-
prised of the following components:
– thermally insulated gloves
– protective goggles
– in the event of fire, airtight respiratory masks must be
worn.
2.3 Operator requirements
In accordance with EU Regulation 517/2014, the oper-
ator must carry out a leak test of the coolant circuit using
a suitable test device at least once a year. Any leaks that
are detected must be repaired immediately.
2.3.1 Abbreviated instructions
The operator must ensure that abbreviated instructions
containing the following information are available in a
readily accessible location on the LCP DX.
1. Name, address and telephone number of the instal-
lation company, its customer service department, or
the customer service department of the owner/op-
erator, or as a minimum requirement, the individual
responsible for the cooling system, together with the
address and telephone number of the fire brigade,
police, hospitals and burn victims centres.
2. Type of refrigerant: R410A, comprising 50% di-
fluormethane R32 (CH2F2) and 50% R125 pen-
tafluoroethane (C2HF5);
3. Instructions for switching off the cooling system in
an emergency (see section 7.2.3 "Switching off in an
emergency");
4. The maximum permissible pressures (see
section 11 "Technical specifications").
2.3.2 System log
Under DIN EN 378, the operator is required to keep a
system log and ensure that it is regularly updated. The
system log should contain the following information:
1. Details of all repair work
2. Quantity and type (new, reused or recycled) of refrig-
erant added, quantity of refrigerant removed
3. Outcome of any analysis of reused refrigerant, if
available
Caution! Risk of malfunction or damage!
Proper and flawless unit operation can
only be ensured when it is operated un-
der the intended ambient conditions. As
far as possible, observe the ambient
conditions for which the unit was de-
signed, e.g. temperature, humidity, air
purity.
Caution! Risk of malfunction or damage!
All media required for the control sys-
tem, such as the correct fill volume of
coolant, must be available throughout
the entire operating period of the device.
Caution! Risk of malfunction or damage!
Installation, and in particular the coolant
line pipework between the external con-
denser and the LCP DX, must only be
carried out by trained, qualified and ac-
credited cooling system specialists.
Caution! Risk of malfunction or damage!
In order to prevent EMC-related mal-
functions during operation, and to allow
access for servicing purposes, cross-
wiring through the LCP DX to the bayed
racks is prohibited.
Note:
Rittal offers leak testing of the device as a
service.

2 Safety instructions
2
8Rittal Liquid Cooling Package
4. Origin of reused refrigerant
5. Amendments to and replacement of system com-
ponents
6. Results of all regular routine checks and
7. Any significant shutdowns.
2.3.3 F-gas regulation
Regulation (EC) No. 517/2014 of the European Parlia-
ment and of the Council of 16 April 2014 on certain fluor-
inated greenhouse gases entered into force on 9 June
2014. The Regulation regulates the reduction of emis-
sions, the use, recovery and destruction of certain fluor-
inated greenhouse gases, and the labelling and disposal
of products and equipment containing such gases.
Leak test pursuant to Article 4 (leak checks)
The leak checks shall be carried out with the following
frequency, depending on the CO2 equivalent quantities
of fluorinated greenhouse gases.
–5t–50tat 12-month intervals, (or where a leakage
detection system is installed, at least every
24 months),
–50 t – 500 t at 6-month intervals, (or where a leakage
detection system is installed, at least every
12 months),
–more than 500 t at 3-month intervals, (or where a
leakage detection system is installed, at least every
6 months).
2.3.4 Chemicals – Climate Protection Ordinance
This Ordinance applies in addition to the aforementioned
Regulation (EC) No. 517/2014 of the European Parlia-
ment and of the Council of 16 April 2014.
2.4 RoHS compliance
The LCP DX fulfils the requirements of EU Directive
2011/65/EC on the Restriction of Use of Certain Hazard-
ous Substances in Electrical and Electronic Equipment
(RoHS) of 1 July 2011.
Note:
Corresponding information about the RoHS
Directive may be found on our website at
www.rittal.com/RoHS.

Rittal Liquid Cooling Package 9
3 Device description
3
3 Device description
3.1 General functional description
The Liquid Cooling Package DX (DX = Direct Expansion)
is essentially a split air conditioning unit used to dissipate
high heat losses from server enclosures or for the effec-
tive cooling of devices built into a server enclosure.
The air routing in the LCP DX supports the "front to
back" cooling principle of the devices built into the server
enclosure. The hot air expelled by the devices in the
server enclosure is drawn in by the fans at the rear di-
rectly from the server enclosure (LCP Rack DX) or from
the hot aisle (LCP Inline DX) and thus routed through the
heat exchanger module.
In the heat exchanger module, the heated air is directed
through a heat exchanger (coolant evaporator), and its
thermal energy (heat losses from the server) is trans-
ferred to the coolant. This causes the coolant to change
from a liquid to a gaseous state. As a result, the air is
cooled to a freely selectable temperature within the au-
thorised parameters and then routed directly in front of
the 482.6 mm (19") level in the server enclosure (LCP
Rack DX) or into the cold aisle (LCP Inline DX).
In its delivered state, cold air from the LCP Inline DX is
expelled to the front; it is also possible to expel the cold
air on both sides, or by mounting a side panel, at one
side of the device.
Fig. 1: Air routing on the LCP Rack DX – top view
Key
1 Air inlet
2 Heat exchanger
3Airoutlet
4Fanmodule
5 2nd air inlet
6 2nd air outlet
Fig. 2: Air routing on the LCP Inline DX – top view
Key
1 Air inlet
2 Heat exchanger
3Fanmodule
4Airoutlet
The temperature of the impelled cold air is controlled by
continuously comparing the actual temperature with the
setpoint temperature (preset to +22°C).
If the actual temperature exceeds the setpoint tempera-
ture, the speed of the compressor is automatically in-
creased, providing a greater cooling output from the
heat exchanger, until the setpoint temperature is
reached.
The temperature differential between the setpoint and
the warm air intake is used to calculate and control the
fan speed.
Any condensate incurred is collected in the condensate
collecting tray integrated into the LCP DX below the heat
exchanger, and from there is routed outside via a con-
densate discharge hose.
3.2 Air routing
3.2.1 General
In order to achieve sufficient cooling in the server enclo-
sure, it is important to ensure that the cooling air passes
through the interior of the built-in units and is unable to
flow past at the sides.
Targeted air routing inside the server enclosure has a
major effect on the heat loss to be dissipated.
2
15
63
4
2
1
3
4

3 Device description
3
10 Rittal Liquid Cooling Package
In order to ensure targeted air routing in the system, the
server enclosure should be divided vertically into warm
air and cold air sections. The division is accomplished in
the front section of the server assembly to the left and
right of the 482.6 mm (19") level using foam strips or air
baffle plates which, depending on the enclosure width
and the number of server enclosures to be cooled, can
be ordered as an accessory (see section 13 "Accesso-
ries").
If devices which require sideways air throughput are also
built into the server enclosure (e.g. switches, router,
etc.), these may be cooled by means of targeted place-
ment of the foam strips or air baffle plates.
3.2.2 LCP Rack DX
The LCP Rack DX may optionally be bayed on the right
or left of a server enclosure or between two server en-
closures, according to preference.
Fig. 3: LCP Rack DX on two server enclosures
Together with the bayed server enclosure, the LCP
Rack DX forms an airtight cooling system with horizontal
air routing. It places no additional demands on the
room's climate control system.
Fig. 4: Air routing with a bayed server enclosure – top view
Key
1 Server enclosure
2LCPRackDX
Fig. 5: Air routing with two bayed server enclosures – top view
Key
1 Server enclosure
2LCPRackDX
The system consisting of the LCP Rack DX and the serv-
er enclosure should be sealed as effectively as possible
in order to prevent the loss of cooling air. To accomplish
this, the enclosure is equipped with side panels, roof and
gland plates. Any existing cable entries should be sealed
e.g. using suitable brush strips.
Whilst the system is in operation, both the front and the
rear doors should be kept completely shut.
Note:
The 482.6 mm (19") level must likewise be
completely sealed. This is already the case in
a fully equipped server enclosure. With a par-
tially configured server enclosure, the open
height units (U) of the 482.6 mm (19") level
must be sealed with blanking plates, which
are available as Rittal accessories (see
section 13 "Accessories").
The more devices are installed in the server
enclosure, the more important it becomes to
follow this specification.
21
IT rack
211
IT rack IT rack

Rittal Liquid Cooling Package 11
3 Device description
3
3.2.3 LCP Inline DX
Targeted air routing by hot air extraction from the hot
aisle and cold air blown into the cold aisle has a funda-
mental effect on the amount of heat to be dissipated.
In order to achieve sufficient cooling in the server enclo-
sure, it is important to ensure that the cooling air passes
through the interior of the built-in units and is unable to
flow past at the sides.
Fig. 6: LCP Inline DX on two server enclosures
For this purpose, the system consisting of
LCP Inline DX, server enclosure and cold aisle contain-
ment should be well sealed in order to avoid a decrease
of the cooling capacity due to mixing of cold and hot air.
This is achieved by sealing the cold aisle with doors at
the beginning and end of the rack rows, and sealing it at
the top with roof elements. Existing cable entry glands
are additionally sealed e.g. using suitable brush strips.
3.3 Equipment assembly
3.3.1 Unit components
Fig. 7: LCP Rack DX front – open front door
Key
1LCPdoor
2Display
3Fan
4 Rack
5 Electronics box with switches for fans
The device variants differ as follows at the front:
– LCP Rack DX: Solid front door
– LCP Inline DX: Perforated front door
Note:
However, the system does not need to be
completely airtight, thanks to the high, co-
ordinated air throughputs of the server and
LCP fans.
1
2
5
4
3
3
3
3

3 Device description
3
12 Rittal Liquid Cooling Package
Fig. 8: LCP DX rear – rear door open
Key
1Reardoor
2 Condensate collecting tray
3 Compressor
4 Connection lines to the external condenser
5Inverter
6 Heat exchanger (evaporator coil)
7 Electronics box with voltage connection and network
connection
The device variants differ as follows at the rear:
– LCP Rack DX: Solid rear door
– LCP Inline DX: Perforated rear door
The LCP DX consists of a solid welded frame in which
the evaporator coil, fan modules and compressor are in-
stalled.
3.3.2 Coolant circuit
The coolant circuit consists of the following compo-
nents:
– Compressor: The compressor compresses the cool-
ant and causes it to circulate from the low-pressure
side (evaporator coil) to the high-pressure side (exter-
nal condenser). The motor is activated by an external
inverter, which controls the speed of the compressor
and therefore allows the cooling output to be precisely
adapted to the actual cooling requirement.
– Evaporator coil: The evaporator coil (air/coolant heat
exchanger) is positioned in the centre of the LCP DX.
Any condensate incurred is discharged into a conden-
sate collecting tray in the bottom section of the device.
– Electronic expansion valve: The expansion valve sup-
plies the evaporator coil with the required volume of
coolant to provide the corresponding cooling output in
the current ambient conditions.
– External condenser: The condenser is sited outdoors
from the room where the LCP DX is situated. Connec-
tion details for the LCP DX may be found in section 6
"Installation".
– Temperature sensors: There are three temperature
sensors installed on the front of the device near the
fans. These measure the cold air temperature and for-
ward the readings to the control unit. There are three
further temperature sensors installed on the rear of the
evaporator coil. These measure the hot air tempera-
ture and likewise forward the readings to the control
unit.
Fig. 9: Coolant circuit
Key
1Temperaturesensor
2Inverter
3Evaporatorcoil
4 Electronic expansion valve
5 Filter dryer
6 Compressor
7 Refrigerant collector
8 Condensate collecting tray
3.3.3 External condenser
An external condenser is required in order to operate the
device. Only Rittal-supplied condenser units may be
used. The following options are available:
– Model No. 3311.363: Standard condenser
– Low-temperature condenser with winter kit module
– High-temperature condenser
1
7
5
2
6
3
4
2
1
7
8
1
3
1
4
5
6

Rittal Liquid Cooling Package 13
3 Device description
3
3.3.4 Fan module
Fig. 10: Fan module in fan tray
Key
1 Air baffle plate
2 DC connection cable (control voltage)
3 PE conductor connection
4Fan
5Handle
6 AC connection cable (power supply)
A fan module is essentially comprised of the fan itself. All
fan modules are controlled via a joint control unit mount-
ed in the electronics box in the upper section of the
LCP DX. Fans may be operated with linear control be-
tween 30% and 100%.
The fan modules are installed on rack-mounted shelves
in the front section of the LCP DX.
It takes approximately 2 minutes to replace a single fan
module with the system operational (see section 9.3
"Fan installation").
3.4 Proper and improper usage
The LCP DX is used to dissipate high heat losses and ef-
fectively cool devices built into a server enclosure. The
unit is designed solely for static use in sealed rooms.
The unit is state of the art and built according to recog-
nised safety regulations. Nevertheless, improper use
can present a hazard to life and limb of the user or third
parties, or result in possible damage to the system and
other property.
Consequently, the unit must only be used properly and
in a technically sound condition.
Any malfunctions which impair safety should be rectified
immediately. Follow the operating instructions!
Proper usage also includes following the operating in-
structions and fulfilling the inspection and maintenance
conditions.
Inappropriate use can be dangerous. Examples of inap-
propriate use include:
– Using in an environment that does not generate an ad-
equate heat load, for example, due to insufficient in-
stalled equipment.
– Using a different condenser unit not supplied by Rittal.
– Use of impermissible tools.
– Improper operation.
– Use of a coolant other than R410A.
– Use of a coolant fill volume other than that specified.
– Installation of the external condenser in an unsuitable
position.
– Operation with less than four installed fans.
– Improper rectification of malfunctions.
– Use of replacement parts which are not authorised by
Rittal GmbH & Co. KG.
– Non-static use, e.g. on moving or vibrating machines.
3.5 Supply scope of a LCP DX
The LCP DX supply includes:
5
6
4
2
1
3
1
Qty. Parts
1 LCP DX, ready for connection
Accessories:
1 Condensate hose
1 Sealing strip
Tab. 1: Supply scope of a LCP DX

4 Transportation and handling
4
14 Rittal Liquid Cooling Package
4 Transportation and handling
4.1 Transportation
The LCP DX is delivered shrink-wrapped on a pallet.
4.2 Unpacking
Remove the unit's packaging materials.
Check the unit for any damage that occurred during
transport.
Place the unit in its intended location.
Caution!
Because of its height and small base, the
LCP DX is subject to tipping. Risk of top-
pling, especially after the unit is removed
from the pallet!
Caution!
Transport of the LCP DX without a pallet:
Use only suitable and technically sound
lifting gear and load-bearing devices
with sufficient load capacity.
Note:
After unpacking, the packaging materials
must be disposed of in an environmentally
friendly way. They are comprised of the fol-
lowing materials:
Wood, polyethylene film (PE film), strap, edge
protectors.
Note:
Damage and other faults, e.g. incomplete de-
livery, should immediately be reported to the
shipping company and to Rittal GmbH & Co.
KG in writing.

Rittal Liquid Cooling Package 15
5 Assembly and siting
5
5 Assembly and siting
5.1 General
5.1.1 Installation site requirements
In order to ensure problem-free operation of the
LCP DX, the following conditions for the installation site
should be observed:
Positioning of the LCP DX in the server room rela-
tive to the external condenser
The interior device (LCP DX) and the external condenser
must be connected with a suitable copper pipe connec-
tion in accordance with DIN EN 378-2. The entire sys-
tem must then be filled with coolant (see section 6.2
"Notes on pipework").
Fig. 11: Relative positioning condenser below the LCP DX
Key
1 Offset in a side direction
2 Condenser offset below the LCP DX
Fig. 12: Relative positioning above the LCP DX
Key
1 Offset in a side direction
2 Condenser offset above the LCP DX
The following distances and geodetic height differences
must not be exceeded when installing the LCP DX and
the external condenser:
Supply connections required at the installation site
2
1
2
1
Position Distance
Sum total of horizontal
(fig. 11, item 1) and vertical
spacing (fig. 11, item 2 or
fig. 12, item 2) between the
LCP DX and the condenser
Max. 45 m equivalent
length
Condenser above LCP DX
(fig. 12, item 2)
max. 20 m
Condenser below LCP DX
(fig. 11, item 2)
max. 3 m
Tab. 2: Distances and height differences
Note:
When calculating the equivalent length,
please also refer to section6.2 "Notes on
pipework".
Type of connection Connection description:
LCP DX standard ver-
sion power inlet
380…480 V ±10 %, 3~, N, PE,
50/60 Hz
Standard external
condenser power in-
let 3311.363
230 V,1~, 50/60 Hz, 3.0 A
External diameter of
coolant lines
Copper pipework 1 mm wall
thickness
– equivalent length up to 20 m
(LCP DX to outdoor unit):
Øa=16 mm (hot gas line)/
12 mm (liquid line)
– equivalent length from 20 m to
45 m (LCP DX to outdoor unit)_
Øa=16 mm (hot gas line)/
16 mm (liquid line)
Tab. 3: Supply connections required at the installation site
Note:
A voltage of at least 380 V is required to start
the device.
If the mains voltage briefly drops 10% below
380 V with the system operational, it will not
malfunction.
Note:
Please also observe the instructions and data
relating to the coolant connection as outlined
in section 6 "Installation".

5 Assembly and siting
5
16 Rittal Liquid Cooling Package
Floor conditions
– The floor of the installation space should be rigid and
level.
– Choose the installation site so that the unit is not situ-
ated on a step or uneven surface, etc.
Climatic Conditions
Electromagnetic interference
– Interfering electrical installations (high frequency)
should be avoided.
Heat loss from the equipment
– The equipment in the server enclosure being cooled
must generate a heat loss of at least 5 kW.
5.1.2 Prepare the installation room
The installation room must be divided into one cold air
zone and one hot air zone. This ensures that no cooling
capacity is lost due to mixing of cold and hot air.
Fig. 13: Installation room with cold aisle containment
Key
1LCPDX
2Hotaisle
3Coldaisle
5.1.3 Installation guidelines
The positioning in the rack aisles must be considered
when planning the layout. The following points are to be
considered:
– Heat loss in the adjacent server racks
– Air throughput in the adjacent server racks
– Distances from the adjacent server racks
Heat losses in the adjacent server racks
If the LCP DX is used in combination with server enclo-
sures with high heat losses, the number of LCP DX units
must be adapted according to the characteristic curves.
The air temperature difference between server inlet and
server outlet, which is determined by the equipment
used, is particularly important. As a rule of thumb, a tem-
perature difference of 15 K can be expected. There may,
however, be greater differences.
Air throughput in the adjacent server racks
Due to the containment of the hot and cold zones, it is
important to ensure that the LCP DX delivers a sufficient
amount of cold air into the cold zone. From there, the
cold air is drawn back into the server enclosures by the
equipment. A small surplus of air should generally be
provided in order to compensate for any short-term de-
mands of the equipment.
Distances from the adjacent server racks
In small applications and short aisles, the above points
will not have a major impact on properties or cooling ca-
pacity provided the hot zone is thoroughly and precisely
sealed off from the cold zone. For larger applications
and long aisles, however, it is important to ensure even
spacing of the cooling units, due to the loss of air
throughput caused by external pressure losses and con-
vection or radiation heat of the equipment. Other factors,
such as high-temperature rooms adjacent to the cold
zone or exterior walls warmed by the sun, can also oc-
cur.
5.2 Assembly procedure
5.2.1 General
Before the LCP DX can be bayed onto a server enclo-
sure, the following work should be carried out.
– Dismantle the side panels,
– Seal the server enclosure and
– Dismantle the server enclosure door.
Recommendation:
For easier servicing of the LCP DX, maintain
a distance of at least 1 m between the front
and rear of the device and the nearest wall.
Recommendation:
Room temperature +22 °C at 50% relative air
humidity, according to ASHRAE guidelines.
Where necessary, these values should be
achieved by an additional room air-condition-
ing system.
3
21
Note:
All the components needed for cold aisle
containment are available from Rittal as ac-
cessories.

Rittal Liquid Cooling Package 17
5 Assembly and siting
5
When installing the unit the space required must be tak-
en into account and must not be impaired by compo-
nents or installations at the installation site.
5.2.2 Fit the attenuators
If applicable, attenuators may be fitted underneath the
unit for vibration insulation. For this purpose, the entire
LCP DX must be lifted up.
Lift up the LCP DX using appropriate lifting gear with
an adequate load capacity.
Attach the attenuators underneath the unit.
Slowly and carefully lower the LCP DX onto the atten-
uators.
5.2.3 Dismantle the side panels
If there is a side panel or partition mounted on the server
enclosure side to which the LCP DX is to be bayed, this
must be removed first.
Loosen and remove the 8 assembly screws found on
each side panel of the server enclosure.
Remove all side panel securing elements from the side
of the server enclosure onto which the LCP DX is to be
bayed.
Dismantle both side panel mountings from the upper
mounting rail of the server enclosure, using an appro-
priate lever.
Loosen and remove the screws on both of the side
panel mounting brackets (top and bottom) in the mid-
dle of the mounting rail.
Loosen and remove the screws from the 6 side panel
holders on the side mounting rails.
5.2.4 Seal the server enclosure
In order to ensure targeted air routing in the system, the
server enclosure is vertically divided into hot air and cold
air zones by sealing the 482.6 mm (19") level.
Proceed as follows to seal the 482.6 mm (19") level:
If the server enclosure is only partially configured, seal
the open sections of the 482.6 mm (19") level using
blanking plates. Screw these tightly into the server
rack from the front.
Fasten the wider (Model No. 3301.370 / 3301.320) of
the two foam strips from the LCP DX accessories onto
one of the front uprights of the server rack from the
outside. Make sure to install this strip on the side of the
server enclosure onto which the LCP DX is to be
bayed.
If you are only baying the LCP DX on one side:
Fasten the narrower (Model No. 3301.380 / 3301.390)
of the two foam strips from the LCP DX accessories
onto one of the front uprights of the server rack from
the outside. Make sure to install this strip on the side
of the server enclosure which will again be sealed by a
side panel.
If the server enclosure contains devices which require
cooling via sideways air throughput (e.g. switches, rout-
er, etc.), cut-outs must be incorporated into the foam
strips.
To do this, cut out a piece of the foam strip using a
sharp knife.
If several devices which require sideways air through-
put are included, cut out several pieces of the foam
strip, as is appropriate, so that, ultimately, there is a
cut-out in the foam to the left or right at the height of
each such device in the server rack. Ensure that there
are no gaps on the hot air side of the devices (fig. 14,
item 3).
Using a sharp knife, cut additional pieces from the
foam strip that are at least as long as the height of the
built-in devices.
Attach the foam strips to the cold air side of the devic-
es set back towards the rear (fig. 14, item 5), making
sure that all fans built into the devices can draw air and
that none of them are blocked.
Danger! Injury due to falling loads!
Do not stand under suspended loads
when transporting the unit with a hoist
trolley, a forklift, or a crane.
Caution! Risk of injury!
Attenuators must only be attached to the
LCP DX by suitably trained experts.
Caution! Risk of injury!
The side panel holders have sharp-
edged teeth, which enable earthing of
the server enclosure's side panel.
Caution! Risk of injury!
There is the risk of being cut when foam
strips are cut to size. Wear your personal
protection equipment!
Note:
Blanking plates in a range of height units (U),
together with both narrow and wide foam
strips and air baffle plates, are available as
Rittal accessories (see section 13 "Accesso-
ries").
Note:
The foam strips can be attached between the
front and rear uprights of the server rack
along the entire depth of the devices with
sideways air throughput (fig. 14, item 1).

5 Assembly and siting
5
18 Rittal Liquid Cooling Package
Fig. 14: Placement of foam strips for devices with sideways air
throughput (top view)
Key
1 Area in which the foam strips can be positioned
2LCPDX
3 Foam strips on hot air side
4 Server enclosure
5 Foam strips on cold air side
If there is any surplus length of the foam strip on the
server rack, cut it off at the top edge of the rack.
On the side of the server enclosure opposite the
LCP DX, mount a side panel on the two side panel
mountings. Align it with the front and rear of the enclo-
sure.
Using the 8 assembly screws, screw the side panel
firmly onto the side panel holders and the side panel
mounting brackets.
Seal off any cable entries which may be present with
corresponding brush strips or similar.
5.2.5 Installation and baying of the LCP DX
Position the LCP DX on the side of the server enclo-
sure to which it is to be bayed.
Align the LCP DX with the server enclosure. Ensure
that the LCP DX is aligned horizontally and that both
enclosures are adjusted to the same height and are
vertically aligned to each other.
Dismantle the door of the LCP DX whose hinges are
on the side on which the server enclosure is to be
bayed.
Using the corresponding assembly screws, fasten two
baying connectors each (fig.15, item 2) onto the at-
tachment points provided in the mounting strips on
the front and rear of the LCP DX (fig.15, item 1).
Fig. 15: Rear
Key
1LCPDX
2 Baying connector
In the same way, fasten the baying connectors onto
the attachment points provided in the mounting strips
on the front and rear of the server enclosure. As need-
ed, press the LCP DX lightly against the server enclo-
sure in order to bring the baying connectors into
alignment with the attachment points.
All device versions:
If applicable, attach the rear door to the LCP DX.
Finally, check the stability of the LCP DX once again.
Note:
The LCP DX may optionally be bayed onto a
server enclosure either 600 mm or 800 mm
wide. For this reason, the LCP DX accesso-
ries include a total of four foam strips or cor-
responding air baffle plates with differing
dimensions (see section 13 "Accessories").
5
4
1
3
1
2
Note:
If the LCP DX is to be bayed between two
server enclosures, both doors of the LCP DX
must be dismantled before the baying con-
nectors are installed, so that the attachment
points for the baying connectors are accessi-
ble.
1
2
2

Rittal Liquid Cooling Package 19
5 Assembly and siting
5
5.2.6 Mounting the side panel
If the LCP DX is not bayed between two server enclo-
sures, close it off with a side panel.
Proceed as follows to assemble the side panel:
Remove the various assembly components from the
optional side panel package (Model. No. 8100.235) or
use those from a server enclosure which has already
been dismantled.
Using the assembly screws, mount the assembly
components (2 side panel mountings, 2 side panel
mounting brackets, 6 side panel holders) onto the side
of the LCP DX which is opposite to the server enclo-
sure.
Place both side panel mountings as symmetrically as
possible onto the upper mounting rail of the LCP DX
and, using your hand, press them firmly in place.
Screw down the two side panel mounting brackets
top and bottom in the centre of the mounting rail using
one screw each.
Screw down 3 side panel holders onto each of the two
side mounting rails with one screw each.
Mount a side panel onto the two side panel mountings
of the LCP DX and align them to the front and rear of
the unit.
Using the 8 assembly screws, screw the side panel
firmly onto the side panel holders and the side panel
mounting brackets.
5.3 External condenser
The installation site of the external condenser must be
selected in such a way as to ensure an adequate supply
and distribution of the airflow, even in unfavourable con-
ditions (see section 5.1.1 "Installation site require-
ments").
To ensure ease of access to the external condenser for
servicing purposes, a sufficiently large distance from the
surrounding walls must be ensured.
It is also important to ensure that no foreign bodies such
as leaves can be drawn into the condenser.
With unprotected siting of the external condenser, it is
important to prevent unwanted external air streams
through the condenser (e.g. via console installation).
Such air streams and other weather factors may alter the
control response of the LCP DX.
Fig. 16: Air streams with unprotected siting
Key
1 Facade mounting
2 Condenser airflow
3 External air stream
4 Building roof or site floor
5 Console installation
The condenser is weather-resistant and may therefore
be installed completely in the open air, with no need for
a weather protection canopy etc. If the condenser is in-
stalled underneath a canopy, there must be a distance
of at least 4 m between the floor and the canopy.
Fig. 17: Minimum distances with vertical mounting.
If the distance is less than 4 m, the condenser must be
mounted in such a way that the air outlet is horizontal.
Fig. 18: Installation options with horizontal air outlet
Caution! Risk of injury!
The side panel holders have sharp-
edged teeth, to enable earthing of the
side panel through the LCP DX.
Note:
The following instructions on siting the exter-
nal condenser apply equally to all condenser
types available at Rittal.
Note:
Opening "A" must be at least as large as the
front of the condenser.
134 5 322
0.65 m
0.8 m
0.8 m

5 Assembly and siting
5
20 Rittal Liquid Cooling Package
The condenser may be installed either horizontally or
vertically using the supports included with the supply of
the device.
Fig. 19: Horizontal or vertical mounting
In the case of vertical mounting (with a horizontal air-
flow), the hot gas line must be laid above the liquid line.
Fig. 20: Laying the hot gas and liquid lines