The assembly, installation and operating instructions as
well as all applicable documents are an integral part of
the product. They must be passed to those persons
who are engaged with the unit and must always be available and on hand for the operating and maintenance
personnel.
1.2Symbols used in these operating instructions
The following symbols are used in this documentation:
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 severe injury if the instructions
are not followed.
in this documentation. Liability for indirect damages associated with the supply or use of this documentation is
excluded to the extent allowable by law.
1.4.2Copyright
The distribution and duplication of this document and
the disclosure and use of its contents are prohibited unless 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.
1.4.3Revision
Rev. 1A of 08/10/2014
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 approaches. It also indicates situations which
may result in material damage.
This symbol indicates an "Action Point" and shows
that you should perform an operation/procedure.
1.3Associated documents
In conjunction with these assembly, installation and operating instructions, the superordinate system documentation (if available) also applies.
Rittal GmbH & Co. KG is not responsible for any damage
which may result from failure to comply with these assembly, installation and operating instructions. The
same applies to failure to comply with the valid documentation for the accessories used.
1.4Normative instructions
1.4.1Legal information concerning the operating
instructions
We reserve the right to make changes in content. Rittal
GmbH & Co. KG will not be held liable for any mistakes
4Rittal Liquid Cooling Package
2 Safety instructions
2Safety instructions
The Liquid Cooling Packages produced by Rittal GmbH
& Co. KG are developed and produced with due regard
to all safety precautions. Nevertheless, the unit still poses a number of unavoidable dangers and risks. The
safety instructions provide you with an overview of these
dangers and the necessary safety precautions.
In the interests of your own safety and the safety of others, please read these safety instructions carefully before assembly and commissioning of the Liquid Cooling
Package.
Follow the user information found in these instructions
and on the unit carefully.
2.1Important safety instructions
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, especially from the sharp edges of the heat
exchanger module!
Put on protective gloves before beginning assembly or cleaning work!
Warning! Injury due to falling loads!
If the server rack is not fully populated,
there is a risk of it tipping over when the
Liquid Cooling Package is swung away.
Heavy equipment should be installed in
the bottom part of the server enclosure.
Where necessary, secure the server enclosure to the floor to prevent it tipping
over.
Caution! Risk of malfunction or damage!
The medium necessary for the control
system, i.e. cooling water, must be available throughout the entire operating
time.
Caution! Risk of malfunction or damage!
It is vital that the manufacturer's consent is obtained before adding antifreeze!
Caution! Risk of malfunction or damage!
During storage and transportation below
freezing point, the water circuit should
be drained completely using compressed air!
2.2Service and technical staff
The installation, commissioning, maintenance and repair
of this unit may only be carried out by qualified, trained
mechanics.
Only properly instructed personnel may work on a unit
while in operation.
2.3RoHS compliance
The Liquid Cooling Package fulfils the requirements of
EU Directive 2011/65/EC on the Restriction of Use of
Certain Hazardous Substances in Electrical and Electronic Equipment (RoHS) of 1 July 2011.
Note:
The corresponding information about the
RoHS Directive can be found on our website
at www.rittal.com.
EN
Caution! Risk of malfunction or damage!
Do not modify the unit! Use only original
spare parts!
Caution! Risk of malfunction or damage!
Proper operation can only be ensured if
the unit is operated under the intended
ambient conditions. As far as possible,
be sure that the ambient conditions for
which the unit is designed are complied
with, e.g. temperature, humidity, air purity.
Rittal Liquid Cooling Package5
3 Device description
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Server
erver
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HD
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LCP Hybrid
Server rack
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EN
3Device description
3.1General functional description
The LCP Hybrid is essentially an air/water heat exchanger. It cools the room by cooling the hot air from devices
in a server enclosure to the ambient temperature. This
prevents the temperature at the installation site from rising as a result of heat loss from the IT components. To
this end, the device is fitted to the rear of a server enclosure.
Air routing follows the "front to back" cooling principle,
and is effected by the device fans built into the server enclosure. The expelled warm air is routed through the air/
water heat exchanger of the Liquid Cooling Package. To
this end, the fans of the built-in 482.6 mm (19") equipment must be capable of overcoming the airside pressure loss from the LCP Hybrid.
There, the air is cooled and then flows out into the ambient air at the rear.
Note:
The water inlet temperature must always be
selected (controlled) to be above the dew
point for the existing ambient temperature
and humidity in the data centre. The dew
point can be found in the Mollier h-x diagram
(fig. 2).
Furthermore, we advise compliance with the
ASHRAE standard "ASHRAE TC 9.9, 2011
Thermal Guidelines for Data Processing Environments".
Note:
As an alternative to use of the h-x diagram, in
section 13.2.2 "Determination of the dew
point", you will find tables showing the dew
point for selected temperatures and air humidity levels.
Fig. 1:Air routing on the LCP Hybrid – Side view
Key
1Cold ambient air
2Server rack with installed equipment
"
3Hot airflow from 482.6 mm (19
4LCP Hybrid with air/water heat exchanger
5Cooled air
Immediately in front of the heat exchanger is a row of
heat pipes. These heat pipes support even distribution
of the thermal load over the entire height of the heat exchanger.
In the heat exchanger, the thermal energy (heat loss
from the devices) is transferred to a cold water system.
6Rittal Liquid Cooling Package
) equipment
3 Device description
0 g/kg
Temperature
1.05 kg/m3
40˚
35˚
30˚
1.10 kg/m3
25˚
22˚
20˚
2 g/kg
4 g/kg
6 g/kg
8 g/kg
10 g/kg
12 g/kg
14 g/kg
16 g/kg
30% 20% 15% 10% 5%
18 g/kg
Water
20 g/kg
40%
50%
60%
70%
80%
90%
100%
EN
Rel. Humidity
15˚
11˚
10˚
-5˚
-10˚
-15˚
60 kJ/kg
1.15 kg/m3
5˚
1.20 kg/m3
0˚
20 kJ/kg
1.25 kg/m3
0
kJ/kg
40 kJ/kg
Dew point curve
Enthalpy
Mollier h-x diagram for humid air – pressure 0.950 bar (537.000 m / 10.000˚C / 80.000% rF)
Fig. 2:Mollier h-x diagram for humid air
Rittal Liquid Cooling Package7
3 Device description
EN
3.2Air routing
In order to ensure adequate cooling in the server enclosure, it is important to ensure that the hot air from the
fans of the installed equipment is routed directly via the
LCP Hybrid and is prevented from accumulating inside
the server enclosure.
Targeted air routing in the server enclosure has a major
effect on the heat loss to be dissipated. It is therefore important to assemble the device and the additional installed equipment in the server enclosure as described
in section 5.2 "Assembly procedure".
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 rear section of the server assembly to the left and
right of the 482.6 mm (19") level using air baffle plates,
which, depending on the enclosure width and the number of server enclosures to be cooled, can be ordered as
accessories (see section 12 "Accessories").
This prevents the hot air from flowing back at the sides
adjacent to the server installations and forming hot spots
(fig. 3).
1
2
If the air baffle plates remain in the front section of the
server enclosure, hot spots may form in the server enclosure (fig. 4).
1
2
3
4
5
6
7
Fig. 4:Incorrect arrangement of the partitioning plates (air baf-
fle plates)
Key
1Cold ambient air
2Partitioning plates in the front section
3Formation of a hot spot
4Installed devices
5Misdirected hot airflow
6LCP Hybrid with air/water heat exchanger
7Cooled air
If devices which require sideways air throughput are built
into the server enclosure (e.g. switches, router, etc.),
these may be cooled via targeted repositioning of the air
3
baffle plates.
4
Note:
When using devices which require sideways
5
air throughput, repositioning of the air baffle
plates means that the entire width of the heat
exchanger is not used to optimum effect.
6
Fig. 3:Correct arrangement of the partitioning plates (air baffle
plates)
Key
1Cold ambient air
2Installed devices
3Partitioning plates in the rear section
4Hot airflow
5LCP Hybrid with air/water heat exchanger
6Cooled air
8Rittal Liquid Cooling Package
3 Device description
1
3.3Equipment assembly
EN
3.3.1Unit components
2
5
3
4
5
6
4
7
8
1
2
Fig. 5:Arrangement of the partitioning plates (air baffle plates)
for devices with sideways air throughput
Key
1Cold ambient air
2Partitioning plate in the front section
3Installed devices
4Cold airflow in the server enclosure
5Hot airflow in the server enclosure
6Partitioning plate in the rear section
7LCP Hybrid with air/water heat exchanger
8Cooled air
Additionally, please observe the following regarding installed equipment in the server enclosure:
Ensure that the 482.6 mm (19") equipment is distributed as evenly as possible inside the server enclosure.
This prevents selective loading of the heat exchanger.
Install heavy equipment with high heat generation at
the bottom of the server enclosure, and passive components with low heat generation at the top.
If the server enclosure is not fully populated, seal the
open height units (U) in the 482.6 mm (19") level with
blanking plates, available as Rittal accessories (see
section 12 "Accessories").
3
Fig. 6:LCP Hybrid – Door closed
Key
1LCP door with air/water heat exchanger
2Door bracket
3Cooling water connection
4Door handle
5Server enclosure
The Liquid Cooling Package is comprised of a rear door
with heat exchanger and a side frame.
The door is fitted with a special door bracket at the rear
of the server enclosure, and seals the server enclosure
with 4-point locking.
There is a maintenance door fitted on the inside of the
Liquid Cooling Package. Whilst closed, this provides access protection for the heat exchanger.
Note:
Foam strips may also be used as an alterna-
tive to air baffle plates.
Rittal Liquid Cooling Package9
3 Device description
EN
1
4
2
3
Fig. 7:LCP Hybrid – Maintenance door open
Key
1Vent valves
2Air/water heat exchanger with heat pipes
3Ventilation hose
4Maintenance door
3.3.2Air/water heat exchanger with cold water
connection
The air/water heat exchanger is fitted as a rear door in
the Liquid Cooling Package. The cooling water connection is connected to the main inlet and return connections by two DN 25 (G1") externally threaded pipes. The
connection nozzles are positioned vertically downwards.
1
2
3
4
5
Fig. 8:Connection nozzles at the bottom of the LCP Hybrid
Key
1Door bracket hinge
2LCPHybrid
3Server enclosure
4Cooling water connection, inlet
5Cooling water connection, return
The cooling water is generally connected to the cold water system using an optional connection hose. Alternatively, the LCP Hybrid may also be connected on-site
with the installed pipework.
3.4Proper and improper usage
The Liquid Cooling Package is used to dissipate high
heat losses and for the effective cooling of the waste air
from IT components built into a server enclosure.
The unit is state of the art and built according to recognised safety regulations. Nevertheless, improper use
can pose a threat to the 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 use also includes following the operating instructions and fulfilling the inspection and maintenance conditions.
10Rittal Liquid Cooling Package
Inappropriate use can be dangerous. Examples of inappropriate use include:
– Use of impermissible tools.
– Improper operation.
– Improper rectification of malfunctions
– Use of replacement parts which are not authorised by
Rittal GmbH & Co. KG.
3.5Supply scope of a Liquid Cooling
Package
The Liquid Cooling Package supply includes:
Qty.Parts
1Liquid Cooling Package, ready for connection
1Cover
1Assembly instructions
5Posidrive raised countersunk screw
3Contact washer
7Screw
3 Device description
EN
1Bleed tool
Tab. 1: Supply scope of an LCP Hybrid
Rittal Liquid Cooling Package11
4 Transportation and handling
EN
4Transportation and handling
4.1Transportation
The Liquid Cooling Package is delivered on a pallet in a
protective box.
Caution!
Because of its height and narrow base,
the Liquid Cooling Package is subject to
tipping. Risk of toppling, especially after
the unit is removed from the pallet!
Caution!
Transportation of the Liquid Cooling
Package without a pallet:
Use only suitable and technically sound
lifting gear and load-bearing devices
with sufficient load capacity.
4.2Unpacking
Remove the unit's packaging materials but not the
mounting aid.
Note:
Damage and other faults, e.g. incomplete delivery, should be reported immediately, in
writing, to the shipping company and to Rittal
GmbH & Co. KG.
Place the unit in its intended location.
1
Fig. 9:Mounting aid
Note:
After unpacking, the packaging materials
must be disposed of in an environmentally
friendly way. They consist of the following
materials:
Check the unit for any damage that may have occurred during transport.
12Rittal Liquid Cooling Package
5 Assembly and siting
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5Assembly and siting
5.1General
5.1.1Installation site requirements
In order to ensure problem-free operation of the Liquid
Cooling Package, the following conditions for the installation location should be observed:
Supply connections required at the installation site
Type of connectionConnection description:
Cooling water connection:
Tab. 2: Supply connections required at the installation site
Note:
Please also observe the instructions and data
relating to the cold water connection as outlined in section 6.1 "Cooling water connection".
15°C inlet temperature (depending on relative humidity)
Max. 6 bar permissible operating
pressure
Volumetric flow: depending on
design (see section 13.2 "Characteristic curves and tables")
DN 25 (G1") external pipe thread
taken to ensure that external air streams are not pointing
directly at the rear of the LCP Hybrid. Such counterflows
prevent hot air from being expelled by the LCP Hybrid,
leading to the formation of a hot spot inside the server
enclosure.
HD
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Server rack
Server
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LCP Hybrid
EN
Recommendation:
To facilitate easy servicing of the Liquid
Cooling Package, maintain a distance of at
least 1 m between the rear of the device and
the nearest wall.
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.
Recommendation:
Room temperature +22°C at 47% relative air
humidity, according to ASHRAE guidelines.
The room temperature must correspond to
the required air intake temperature.
Caution! Risk of tipping over!
Stand-alone enclosures should be se-
cured to the floor to prevent them tipping over.
12345
Fig. 10:Incorrect external air stream
Key
1Cold ambient air
2Server rack with installed equipment
3Hot spot caused by failure to expel hot air
4LCP Hybrid with air/water heat exchanger
5External air stream onto the LCP Hybrid
A serial layout is the best option. This means that cold air
produced by the LCP Hybrid is drawn in by a server enclosure positioned behind it. The LCP Hybrid installed
there cools the air from this enclosure, and so on.
If several server enclosures are positioned adjacent to
one another, each enclosure must be partitioned separately. To this end, we recommend using a partition between two enclosures, and a corresponding side panel
as the termination.
5.1.2Installation guidelines
The positioning in the rack aisles must be considered
when planning the layout. In particular, care should be
Rittal Liquid Cooling Package13
EN
5 Assembly and siting
Fig. 11:Serial layout
Secure one air baffle plate from the LCP Hybrid accessories to one of the rear supports in the server rack
(fig. 12).
1
2
Fig. 12:Air baffle plate in the server rack
Key
1Server rack
2Air baffle plate
If devices which require cooling via sideways air
throughput (e.g. switches, router, etc.) are built into the
server enclosure, the air baffle plates will need to be
repositioned to allow for cooling (fig. 5):
Attach the air baffle plate in the front section on one
side of the server rack.
Attach the air baffle plate in a suitable place in the rear
section on the other side of the server rack.
5.2Assembly procedure
5.2.1General
Before the Liquid Cooling Package can be bayed onto a
server enclosure, the following work should be carried
out:
– Seal the server enclosure,
– Dismantle the rear server enclosure door, if available
– Remove the lock pieces with the divided rear door and
– Fit the side panels.
After baying the Liquid Cooling Package, the optional air
routing kit may be installed.
5.2.2Seal 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 rear.
5.2.3Dismantle the rear server enclosure door
For baying the LCP Hybrid, the rear door of the server
enclosure (if available) will need to be removed. The
frame of the LCP Hybrid is bayed to the server enclosure
frame in place of the existing server door.
Proceed as follows to dismantle the server enclosure
door:
Remove the sealing bungs from the four door hinges
using an appropriate tool (e.g. screwdriver).
Release and open the server enclosure door.
On each hinge, loosen the locking screw used to secure it to the server enclosure.
Note:
Fig. 13:Removing a door hinge
Blanking plates in the various height units (U)
and narrow air baffle plates are available as
Rittal accessories (see section 12 "Accessories").
14Rittal Liquid Cooling Package
Note:
Support the server enclosure door so that it
will not fall as the hinges are loosened. If necessary, work with a second person.
Remove the server enclosure door from the enclosure,
including the hinges, to the rear.
If divided rear doors were fitted to the server enclosure, the lock pieces in the centre will additionally need
to be removed.
5.2.4Fit the door latch mechanisms
To lock the LCP Hybrid with the server enclosure, the
four lock pieces included with the supply are mounted
on the handle side.
4 x
M6 x 12
5 Assembly and siting
EN
1
2
3
MD= 9 Nm
Fig. 14:Lock piece
Rotate the first lock piece so that the "L" marking is
legible.
Screw the lock piece through the bottom opening on
one of the four mounting positions in the server enclosure.
In the same way, attach the three other lock pieces to
the lock side of the server enclosure.
5.2.5Fit the LCP Hybrid
Note:
At least two people must work together to in-
stall the LCP Hybrid.
Leaving the LCP Hybrid in its packaging, position it behind the server enclosure on which it is to be fitted.
Open the packaging.
With at least two people, lift the LCP Hybrid out of the
packaging and set it upright.
Rotate the LCP Hybrid on the mounting aid, in such a
way that the mounting points and the cooling water
connections are on the right-hand side.
Push the LCP Hybrid against the server enclosure on
the mounting aid, and align it in such a way that the
mounting points in the door hinge of the LCP Hybrid
are aligned with the corresponding openings in the
server enclosure.
Fig. 15:Mounting the LCP Hybrid – Exterior
Key
1Server enclosure
2Mounting point
3Door hinge
Screw the LCP Hybrid onto the four mounting points
to which standard server enclosure door hinges are
attached.
The LCP Hybrid is additionally screw-fastened to the inside of the server enclosure at the top and bottom.
Swing the LCP Hybrid away from the server enclosure
to give you access to the rear of the server enclosure.
Secure the LCP Hybrid on the inside top using two
screws included with the supply.
Rittal Liquid Cooling Package15
EN
5 Assembly and siting
1
2
2
3
5.2.6Fitting the potential equalisation
In order to ensure reliable potential equalisation between
the server enclosure and the LCP Hybrid, it is additionally necessary to fit the special potential equalisation
screw.
Screw the potential equalisation screw and contact
washer included with the supply into the point marked
with an earth symbol above the bottom two assembly
screws, as far as they will go (fig. 17, item 2).
5.2.7Install the air routing kit (optional)
It is also important to ensure correct routing of the heated air through the LCP Hybrid for the devices installed at
the top and bottom of the server enclosure. To this end,
the air routing kit (3311.160) available as an accessory
should be mounted at the rear on the inside of the server
enclosure frame.
First, insert one air baffle plate each from above into
the corresponding fastening plate.
Secure the LCP Hybrid at the inside bottom using two
screws included with the supply.
1
2
3
3
4
6
5
4
Fig. 18:Air routing kit at the bottom of the server enclosure
Key
1Assembly screw, air baffle plate – fastening plate (3x)
2Server enclosure
3Assembly screw, fastening plate – server enclosure (3x)
4482.6 mm (19") level
5Fastening plate
6Air baffle plate
Secure the air baffle plate in this position using a total
of three assembly screws.
Mount the fastening plate, including the air baffle plate,
at the bottom rear of the server enclosure frame, and
secure it in this position, likewise with three assembly
screws.
Note:
The side position of the air baffle plate is de-
termined by the 482.6 mm (19") chassis.
1
2
3
Fig. 17:Mounting the LCP Hybrid – Inside bottom
Key
1LCPHybrid
2Position for potential equalisation
3Assembly screws (2x)
4Server enclosure
16Rittal Liquid Cooling Package
Fit the second air baffle plate in the server enclosure as
outlined above.
5.2.8Remove the mounting aid
Finally, remove the mounting aid beneath the Liquid
Cooling Package.
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