Page 2 - SAVE THESE INSTRUCTIONS; operating instructions carefully before commissioning the XDK.; WARNING; NOTE; CAUTION
I MPORTANT S AFETY I NSTRUCTIONS SAVE THESE INSTRUCTIONS Liebert engineers will provide comprehensive support on how to install the XDK.Extensive material, function and quality checks ensure that you fully benefit from product functions and a long service life. Nevertheless, this product can produce...
Page 3 - TABLE OF CONTENTS
i TABLE OF CONTENTS I MPORTANT S AFETY I NSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I NSIDE F RONT C OVER 1.0 I NTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2.0 O PERATING C ONDITION...
Page 4 - FIGURES
ii FIGURES Figure 1 Cooling airflow, top view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Figure 2 Cooling airflow, side view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
Page 5 - NTRODUCTION
Introduction 1 1.0 I NTRODUCTION The Liebert XDK provides the dissipation of heat loads up to 17kW.The server rack is closed to the installation area, that means no heat load will dissipate to the envi- ronment. (see also chapter 2.) The cooling is provided by a closed cooling system via an air-to-w...
Page 6 - PERATING; Proper Application; The cooling system; Requirements
Operating Conditions 2 2.0 O PERATING C ONDITIONS 2.1 Proper Application The XDK is a water-cooled enclosure and is intended for removing heat from electronic equipment inside the cabinet. The cooling system in the cabinet is thermally independent of the room air. Water is used to cool equipment ins...
Page 7 - ESCRIPTION; General function; Figure 1; Height units not in use must be sealed with blanking panels.; Server; Front
Description 3 3.0 D ESCRIPTION 3.1 General function The modular design facilitates the installation of 19-inch-wide equipment of varying depth.Heat produced by equipment in the cabinet, such as servers, is removed by the cold water system integrated into the server cabinet. The cooling system is iso...
Page 8 - Principle of Cooling Operation; Figure 2; it is not necessary to open the rear door.; Heat Exchanger; Side of XDK
Description 4 3.2 Principle of Cooling Operation Figure 2 Cooling airflow, side view Air that has been heated by the servers to 95°F (35°C), for example, is circulated to a specially designed air/water heat exchanger by high-performance fans. The heated air is cooled to 68-77°F (20-25°C) and fed to ...
Page 9 - Table 2; Table 3
Description 5 3.2.1 Data Overview—XDK Table 2 Technical data Housing material Aluminium sheet, sheet steel, galvanized and coated Operating Temperature range 50°F to 95°F (10°C to 35°C) Abs. atmospheric humidity 8g / kg maximum Temperature difference across server approx. 15K Noise level 55 dB(A) so...
Page 10 - Control; Figure 3; Upper magnet
Description 6 3.3 Control The server cabinet temperature is controlled by the fan control board A temperature sensor continuously measures the temperature of the server cabinet (server feed air). The air circulation flow rate is controlled by the fan speed according to the current thermal load. At t...
Page 11 - When the rear door is opened, the fans shut down automatically.; Figure 4; door could be damaged
Description 7 3.4.1 Function Front and rear door are kept closed with two electromagnets. The door will be pushed open smoothly by a gas pressure spring if power to the electromagnets fails.If the doors are opened, the thermal load can escape into the room, preventing the servers from over- heating....
Page 13 - QUIPMENT; Packaging Material; dispose of the material appropriately.; SAFETY INFORMATION; Handling; allowable distance that will fit under the skid.; from or preparing unit for installation.
Equipment Inspection, Handling And Storage 9 4.0 E QUIPMENT I NSPECTION , H ANDLING A ND S TORAGE Upon arrival of the unit, and before unpacking, verify that the labeled equipment matches the bill of lading. Inspect all items for damage, either visible or concealed. Damage should be immediately repo...
Page 14 - Storage; such as sand and dust, and from moisture.; Returning the Unit in Case of Damage
Equipment Inspection, Handling And Storage 10 4.3 Storage • If the XDK’s packaging has been removed, cover it with tarpaulins to protect against particulates, such as sand and dust, and from moisture. • Keep storage temperature between -22°F and 104°F (-30°C and +40°C).• The heat exchanger must be c...
Page 15 - NSTALLATION; Preparation for Installation; in the air inlet or in the air outlet.; Positioning the XDK; doors must close easily.; Remove Recirculation Air Duct Transport Lock; Figure 5; the unit functions correctly.; Remove both screws
Installation and Commissioning 11 5.0 I NSTALLATION AND C OMMISSIONING 5.1 Preparation for Installation To achieve good air circulation, ensure that there is no packaging material or other equipment that could hinder or prevent air circulation in the area of the equipment, in the area of the heat ex...
Page 16 - Water Connection; Preparing Heat Exchanger for Initial Commissioning; Figure 6; the heat exchanger and the supply pipe must be drained of all fluid.
Installation and Commissioning 12 5.3 Water Connection The heat exchanger can be pulled out for servicing Water pipes should be connected so that the heat exchanger can be pulled out when the connection is undone. If the heat exchanger is connected to the water circuit using threaded fittings, the p...
Page 17 - Figure 8; Top View; Water supply
Installation and Commissioning 13 Figure 8 Heat exchanger Figure 9 Heat exchanger connection Liebert recommends insulating the cold water pipes with waterproof insulation to prevent condensa- tion and losses. 9-7/8" (150mm) 2" (50mm) 2" (50mm) 33-7/16" (850mm) 27-3/8" (695mm) Spa...
Page 18 - Figure 10 Bottom plate with cutouts; Condensed Water Connection; that air is not drawn into or blown out of the waste pipe.
Installation and Commissioning 14 Figure 10 Bottom plate with cutouts Cable and pipe openings must be sealed air-tight on completion of work. 5.4 Condensed Water Connection If the XDK is operated below dew point, condensed water may occur. As standard there is a water con- nection, 5/8" diameter...
Page 19 - Electrical Connection; The wiring diagram is enclosed in the unit.; Sealing the Cabinet; To ensure the optimal cooling function the cabinet must be sealed:; unauthorized startup.; secured against unauthorized startup
Installation and Commissioning 15 The condensate drain is not pressurized; a condensate pump can be used. 5.5 Electrical Connection The wiring diagram is enclosed in the unit. As soon as all preparations for installation have been made, you can start electrical installation. Check whether voltage an...
Page 20 - ERVICING; General Inspection on Fans—Annual; Figure 11 Replacing a fan; stopped rotating before working within the unit.
Servicing and Maintenance 16 6.0 S ERVICING AND M AINTENANCE 6.1 General Inspection on Fans—Annual • Check for unusual bearing noises. (Check for excessive bearing play.) 6.1.1 Fan Replacement The expected service life is approximately 40,000 operating hours at a temperature of 40°C (104°F).1. Remov...
Page 21 - Reinstall the fan by reversing the steps to remove the fan.; Inspect the Heat Exchanger—Annual
Servicing and Maintenance 17 Reinstall the fan by reversing the steps to remove the fan. 1. Tighten the fan fastening bolts.2. Connect the power supply cable to the fan. 3. Switch on the circuit breaker.4. Dispose of the old fans correctly. 6.2 Inspect the Heat Exchanger—Annual The efficiency of hea...
Page 22 - Replacing the Heat Exchanger; Figure 12 Heat exchanger replacement; Regularly check the condensed water drain and clean if necessary
Servicing and Maintenance 18 6.3 Replacing the Heat Exchanger Figure 12 Heat exchanger replacement Reinstall the heat exchanger by reversing the reverse order of removal. NOTE Regularly check the condensed water drain and clean if necessary Step 1: Lift the air duct off the flange to remove it. Step...
Page 23 - ISMANTLING; The XDK may be dismantled by qualified personnel only.
Dismantling and Disposal 19 7.0 D ISMANTLING AND D ISPOSAL The XDK may be dismantled by qualified personnel only. Disconnect the unit from the external water circuit by closing the shutoff valves and drain the unit’s water circuit.Transport the unit as described in 4.0 - equipment Inspection, Handli...
Page 24 - ATER; Table 4
Water Purity Requirements 20 8.0 W ATER P URITY R EQUIREMENTS To ensure the maximum service life of the air/water heat exchangers, water must comply with the VGB water regulations (VGB-R 455 P). The water used must be soft enough to prevent deposits, but it must not be so soft that heat exchanger co...
Page 25 - Unit Installation Checklist; Comments; Signature
Water Purity Requirements 21 8.1 Unit Installation Checklist ___ 1. Check unit for damage on delivery___ 2. Check for level floor___ 3. Check maximum floor load___ 4. XDK feet adjusted, if applicable___ 5. XDK is level___ 6. No remains of packaging in the XDK___ 7. All installation tools removed___ ...
Page 26 - Commissioning Certificate; Nominal values kept; Table 7
Water Purity Requirements 22 8.2 Commissioning Certificate Nominal values kept ___ 1. Yes___ 2. No Table 6 XDK – Commissioning certificate General Data Client/Setup SiteClient Name Client Address Contact Persons Phone NumberSetup Site / Room Number Table 7 Nominal values at setup site Air Humidity a...
Page 27 - Configuration; Table 8; General Condition
Water Purity Requirements 23 Configuration Table 8 Type of cabinet XDK 17kW Cabinet NumberSerial NumberDate ShippedFanType Table 9 Control of status General Condition Load Carrying Capacity Checked Yes No Level Alignment Checked Yes No Transportation Damages of Cabinet Yes No Comments Damages on Hea...
Page 28 - Cold water facility on site
Water Purity Requirements 24 . Table 10 Cold water facility on site Cold WaterXDK Connected ToWater Temperature Feed °C/°F Return Water Pressure Feed PSI (Pa) Return PSI (Pa) Water Differential Pressure Pa Table 11 Electrical data / documents Wiring Scheme Attached Yes No Comments Cable Connections ...
Page 29 - Commissioning performed by day to day operating.
Water Purity Requirements 25 Commissioning performed by day to day operating. Correctness of function check protocol certified by: Malfunction Indicator Function Yes No Comments Condensate Occurrence at Heat Exchanger Yes No Comments Pressure Test Water Circuit Yes Water Flow Rate Adjusted Yes No Fl...
Page 32 - Precision Cooling
Ensuring The High Availability0f Mission-Critical Data And Applications. Emerson Network Power, the global leader in enabling business-criticalcontinuity, ensures network resiliency and adaptability througha family of technologies—including Liebert power and coolingtechnologies—that protect and supp...
