Liebert® DCD™ - Emerson Network Power
Contents
1. 21 Figure 15 Brass swivel fitting threaded onto Liebert DCD pipe 21 Fisure 16 Schrader valves oa Fa 2 22 Figure 17 Loosen the coil plug 22 Figure 18 Frame and door alignment ia 23 Figure 19 Liebert DCD door hinge location 24 Figure 20 Aligning pipes ee or et EE nn Br Ba th ae eh eee d Sea aso a begat ati ae eb 25 Figure 21 Inserting sealing ng 25 Figure 22 Tightening piping waste I Soe aed Arta si dow Bs Sanden Seat AM ea 2 26 Figure 23 Swivel joint cover identification and location 26 Figure 24 Outer swivel joint cover locations 27 Figure 25 Inside swivel joint cover locations 27 Figure 26 Securing ground wire 27 Figure 27 Reverse door handle ess 28 Figure 28 Typical Liebert DCD interlaced piping 29 Figure 29 Figure 30 Figure 31 Figure 32 Figure 33 Figure 34 Figure 35 Figure 36 Figure 37 Figure 38 Figure 39 Figure 40 Figure 41 Figure 42 Figure 43 Figure 44 Figure 45 Figure 46 Table 1 Table 2 Table 3 Table 4 Table 5 Table 6 Table 7 Table 8 Table 9 Table 10 mg er ra de een 30 Tichelmann ring2. Recommended Hydrological Data Purity Levels pH values 7 10 5 Carbonate hardness 3 8 dH Free carbon dioxide 8 15 mg dm3 Combined carbon dioxide 8 15mg dm Aggressive carbon dioxide Omg dm Sulfides lt 10mg dm Oxygen lt 50mg dm Chloride ions lt 250mg dm Sulphate ions lt 10mg dm3 Nitrates and nitrites 7mg dm COB lt 5mg dm Ammonia lt 5mg dm Iron lt 0 2mg dm Manganese lt 0 2mg dm Conductivity lt 30S cm Solid residue from evaporation lt 500mg dm3 Potassium manganese consumption lt 25mg dm Suspended matter lt 3mg dm3 Partial Flow Cleaning Recommended 3 15 mg dm Full Flow Cleaning gt 15mg dm Liebert DCD 42 Specifications 8 2 Capacity Performance Figure 39 Performance 5 2m h 35 30 25 20 15 10 Entering Rack Temperature C 0 5 10 15 20 25 30 soeccceceeee 22 C Entering Water Temperature L kW ame 1800 Entering Water Temperature oad 12 C Entering Water Temperature Figure 40 Performance 22 9 US GPM 95 CO o N al N o CH Wu Q o Entering Rack Temperature F al al a o 0 5 10 15 20 25 30 35 71 6 22 C Entering Water Temperature Load kW m 64 4 18 C Entering Water Temperature 53 6 12 C Entering Water Temperature 43 Liebert DCD Specifications Figure 4
3. 41 Water IMPUTA ke Da en lal Season es 42 Hydrological data sa 2 2 a a Ba 2e EE Haka s 42 iii Important Safety Guidelines IMPORTANT SAFETY GUIDELINES SAVE THESE INSTRUCTIONS Read all installation operating and safety instructions before proceeding A WARNING Risk of heavy module falling Can cause equipment damage injury and death Two properly trained and qualified people are required to move and install the module The Liebert DCD weighs 210 Ib 95kg Do not leave a Liebert DCD standing unattended on its side or its end without adequate support to prevent it from falling over The Liebert DCD must be supported at all times or laid flat on protective material until it is installed Read all instructions before attempting to move lift remove packaging from the module or preparing the module for installation WARNING Risk of improper operation and overpressurization Can cause equipment or other property damage injury and death Only personnel properly trained and qualified in HVAC installation or service should install or service this equipment CAUTION Risk of contact with sharp edges splinters and exposed fasteners Can cause injury Only properly trained personnel wearing appropriate safety headgear gloves shoes and glasses should attempt to move lift remove packaging from or prepare the module for installation NOTICE Risk of overhead interfer
4. Top Swivel Cover Attaches to Frame SERIES 1 Bottom Swivel Cover Attaches to Frame ee 1 Top Swivel Cover Attaches to Door al 1 Bottom Swivel Cover Attaches to Door EH 1 Self Adhesive Foam 309894P3 1 Fiber Washers 31074P1 2 Condensate Hose Adapter 080090620 Spring Nuts 000782699 16 Diamond Nuts 000770869 000797999 1 Grounding Wire 000798169 1 1 3 Installation Considerations The Liebert DCD is designed for attachment to the rear of a computer cabinet with side panels See 3 0 Mechanical Considerations for details NOTE The cooling with Liebert DCD works only if a strict air separation exists between server cold air intake and server warm air outlet Unused rack spaces must be blocked with blanking plates All bushings network cables piping etc must be sealed to prevent air leakage Racks must have side panels The tops and bottoms of the racks must be sealed 1 4 Room Preparation The room should be well insulated and must have a sealed vapor barrier The vapor barrier in the ceiling and walls can be a polyethylene film Paint on concrete walls and floors should contain either rubber or plastic NOTE The vapor barrier is the most important factor in maintaining environmental control in the conditioned space Outside or fresh air should be kept to a minimum when temperature and humidity must be tightly controlled Outside air adds to the site s cooling heating dehumidifying and humidifying loads Doors must be properl
5. nnager harmed att den har produkten n r den r CE m rkt verensst mmer med EU s direktiv De fabrikant verklaart hierbij dat dit product indien het van de CE markering is voorzien conform de EU richtlijnen is Valmistaja vakuuttaa t ten ett mik li tuotteessa on CE merkint se t ytt seuraavien EU direktiivien vaatimukset Produsenten erklaerer herved at dette produktet n r det er CE merket er isamsvar med EU direktiver Producenten erklaerer hermed at dette produkt overholder EU s direktiver n r det b rer CE maerket O Kataokevaotns SnAWVEL OTL TO Tpol v AUTO TO onoio p pet onyavon CE civar ouutopdo HE TLG o nyieg tng E E 2006 42 EC 97 23 EC While every precaution has been taken to ensure the accuracy and completeness of this literature Liebert Corporation assumes no responsibility and disclaims all liability for damages resulting from use of this information or for any errors or omissions 2014 Liebert Corporation All rights reserved throughout the world Specifications subject to change without notice Liebert is a registered trademark of Liebert Corporation All names referred to are trademarks or registered trademarks of their respective owners SL 17307_REV2_03 15 Emerson Network Power Liebert www emerson com Technical Support Service Web Site www liebert com Monitoring liebert monitoring emerson com 800 222 5877 Outside North America 00800 1155 4499 Single Phase UPS am
6. 37 7 0 MAINTENANCE eu a ence Se Bes te diode de ana er bee eee ae Ow a ee en ren 40 7 1 Gener l Maintenant st sensenti as RE AA rentes els ns Naa 40 8 0 SPECIFICATIONS sn 41 8 1 Water Qualty A E SS A A nee SK 42 8 2 Capacity Performances ba EU EA eu Ge Dee da ic 43 COMPLIANCE WITH EUROPEAN UNION DIRECTIVES INSIDE BACK COVER FIGURES Figure 1 Liebert DCD component locations ii 3 Fig re 2 Generic piping layout da ia He eg wane a Te Seah a ln RE an Baad anna 7 Figure3 Top view of rack with Liebert DCD 8 Figure 4 Recommended module handling equipment 9 Figure 5 Removing packaging 11 Figure 6 Liebert DCD door dimensions 12 Figure 7 Side view of rack with Liebert DCD 13 Figure 8 Generic airflow diagram 14 Figure 9 Position of frame holes spring nuts and diamond nuts on the DCM 18 ugeet Spring nuls vi AAA AAA A RSR AAA A ne LE 19 Figur 1 1 Applied foam strip 2 2er sa Br I De en es EG ven 19 Figure 12 Condensate drain assembly 20 Figure 13 Align the Liebert DCD frame with the rack 20 Figure 14 Tighten screws on frame
7. 4000 5000 6000 7000 Airflow m h Figure 46 Water side pressure drop Pressure Drop Pa Water Flow GPM Pressure Drop psi Water Flow m h Liebert DCD 46 Specifications NOTES 47 Liebert DCD Specifications Liebert DCD 48 COMPLIANCE WITH EUROPEAN UNION DIRECTIVES 4 D ZC Fabbricante Manufacturer Hersteller Fabricant Fabricante y Fabricante Tillverkare Fabrikant Valmistaja Produsent Y Fabrikant Kataoxevaotn Producent E M E RSO N Liebert Corporation 1050 Dearborn Drive P O Box 29186 Columbus OH 43229 USA Il Produttore dichiara che se munito di marchio CE il prodotto conforme alle direttive dell Unione europea The Manufacturer hereby declares that this product when bearing the CE mark conforms to the European Union directives Der Hersteller erkl rt hiermit dass das vorliegende Produkt sollte es die CE Kennzeichnung tragen den folgenden Richtlinien der Europ ischen Union entspricht Le fabricant d clare par la pr sente que ce produit portant la marque CE est conforme aux directives de I Union europ enne El fabricante declara por la presente que si este producto lleva el marcado CE es conforme con las directivas de la Uni n Europea O fabricante declara por este meio que este produto quando ostenta amarca CE est em conformidade com as directivas da Uni o Europeia Tillverkaren tillk
8. Part per Unit Replacement Parts Top Swivel Cover Attaches to Frame 309617P5 1 Bottom Swivel Cover Attaches to Frame 309617P6 1 Top Swivel Cover Attaches to Door 309617P7 1 Bottom Swivel Cover Attaches to Door 309617P8 1 Self Adhesive Foam 309894P3 1 Fiber Washers 310741P1 2 Condensate Hose Adapter 080090620 1 Spring Nuts 000782699 16 Diamond Nuts 000770869 Grounding Wire SE 1 000798169 1 Accessories Flexible Hose Kit 310530G1 1 41 Liebert DCD Specifications 8 1 Water Quality To safeguard the maximum lifetime of air water heat exchangers the water used for chilling purposes must meet the VGB Chilled Water Guidelines VGB R 455 P The chilled water used must be soft enough to prevent deposits but it must not be too soft because that would lead to corrosion of the heat exchanger Table 9 lists the most important impurities and measures for their removal Table 9 Water Impurity Water Impurity or Condition Corrective Method Particles dp lt 0 3 mm Filter the water Excessive hardness Soften the water by ion exchange Moderate level of particles and hardeners Add dispersion or stabilization agents Moderate level of chemical impurities Add deadening agents and inhibitors Biological impurities bacteria and algae Add biocides Emerson recommends treating water to it get as closest as possible to the values in Table 10 Table 10 Hydrological data
9. and loss of critical data center equipment Do not locate unit directly above any equipment that could sustain water damage Emerson Network Power recommends installing monitored leak detection equipment for the unit and supply and return lines 1 Liebert DCD Important Safety Guidelines NOTICE Risk coil and piping rupture Can cause equipment damage and major fluid leaks resulting in serious building damage expensive repair costs and costly system down time Thermal expansion of the cooling fluid without means of expansion can cause the coil and piping to rupture spilling cooling fluid in the conditioned space This can be caused among other ways by closing the ball valves on both the supply and the return pipes Always allow for thermal expansion either by leaving at least one of the valves open or by opening the Liebert DCD s bleed valve see Figure 38 Liebert DCD Component Locations and Model Number Nomenclature COMPONENT LOCATIONS AND MODEL NUMBER NOMENCLATURE Figure 1 Liebert DCD component locations Aluminum Profile N Lower Piping Condensate vr Tray Condensate Drain Plug Chilled Water Outlet 1 FNPT Upper Swivel Chilled Water Inlet 1 FNPT Condensate Hose Adapter On Bottom of Liebert DCD Door Handle 3 Liebert DCD Component Locations and Model Number Nomenclature Table 1 Co
10. and the screws before storing Liebert DCD 6 General Product Information 2 0 GENERAL PRODUCT INFORMATION 2 1 Product System Description The Liebert DCD is an air water heat exchanger that is integrated into the rear door ofa server rack The Liebert DCD meets the requirements of the EN 60950 standard The design allows installation on the back of a server cabinet while maintaining access to the back of the servers while the chilled water connections remain stationary The heat exchanger is suitable for absorbing up to 35kW heat loads from server racks 24 600mm x 42U It can be configured so that no heat is released in the installation area Heat produced by internal components e g servers is reliably removed by the door with a built in chilled water system or a chilled water distribution unit such as the Liebert DCP see Figure 2 A chilled water distribution unit provides these benefits Isolates the building s chilled water circuit from the chilled water circuit in the data center The Liebert DCP circulates chilled water to Liebert DCD while preventing condensation by maintaining the water temperature above the room dew point Ensures the proper flow rate to the Liebert DCD This is critical to achieve and maintaining the needed capacity Minimizes the possibility of a leak within the data center by separating the data center from the building chilled water circuit Should a leak occur within the dat
11. is maintained 5 7 Chilled Water Connections 5 7 1 Strainer Install a 20 40 mesh strainer on the chilled water supply to the Liebert DCP The strainer is required to prevent particles in the chilled water from entering the Liebert DCP s heat exchanger The strainer must be no more than 10 feet 3m from the Liebert DCP 5 7 2 Service Valves Install 1 ball valves field supplied field installed on the supply and return lines to the Liebert DCD to allow service on the unit without shutting down the entire system 5 7 3 Balancing Valves Install balancing valves circuit setters in the supply line to the unit Refer to 8 2 Capacity Performance for the proper flow rate required to achieve the site specific capacity NOTICE Risk of improper storage Can cause frozen or damaged coil and piping resulting in fluid leaks equipment damage and serious building damage The heat exchanger and the piping must be cleared of any water before the unit is stored Compressed air can be used to remove the water Remove all the vents and the screws before storing Emerson recommends storing of the module indoors protected from freezing dampness and contact damage Figure 34 Chilled water connections Chilled water connections are 1 FNPT 52mm 12 7 8 322mm 08 014 100 X 119 X Pg 1 Rev C Liebert DCD 32 Piping 5 8 Flexible Pipes Liebert DCD Flex Pipe kits are available in 10ft 3m in nominal lengt
12. may be stacked up to four units high if multiple units are ordered If stacked units are received cut the bands securing them together and place all packages on the floor beginning to unpack them Keep modules in the protective packaging until they have been moved to the installation site When handling and unpacking the module exercise great care to prevent damage Do not lift modules higher than 6 152mm while moving them If a unit must be lifted higher than 6 152mm exercise great care and keep all personnel who are not helping move them at least 20 feet 5m away from the modules Do not use module piping to lift or move the Liebert DCD Unpacking the Module A WARNING Risk of heavy module falling Can cause equipment damage injury and death Two properly trained and qualified people are required to move and install the module The Liebert DCD weighs 210 Ib 95kg Do not leave a Liebert DCD standing unattended on its side or its end without adequate support to prevent it from falling over The Liebert DCD must be supported at all times or laid flat on protective material until it is installed A CAUTION Risk of sharp edges and splinters Can cause injury Only properly trained and qualified personnel wearing appropriate safety headgear gloves shoes and glasses should attempt to move lift remove packaging from or prepare the unit for installation Required Tools Utility knife e Flat blade screwdriver claw hammer
13. pliers or crowbar Forklift pallet jack or similar device Do not unpack the Liebert DCD before moving it to the installation location Once at the installation point 1 Multiple Unit Shipments Cut the bands and place all packaged modules on the floor for unpacking Slide the upper row of spring clips upward and remove them Figure 5 Remove the top cover and cross brace from the package Remove and set aside the hardware and key package Remove the remaining spring clips side panels and any spacers from the package SNe A Liebert DCD 10 General Product Information Figure 5 Removing packaging Shipping Bands Step 3 bands and lay each carton on the Steps 4 and 5 floor before beginning to open it Spacers Side Panel Side Panel 6 Lay two pieces of protective material each longer and wider than the Liebert DCD frame on the floor 7 Remove foam packaging from both sides of the unit 8 At least two properly trained and qualified people may lift the Liebert DCD frame off the pallet and lay it on one piece of protective material 9 Compare the serial tag information on the Liebert DCD to the bill of lading If the information does not match the product specified contact your local sales representative 10 At least two properly trained and qualified people may lift the Liebert DCD door off the pallet and lay it on the second piece of protective material with the door handle facin
14. poor heat transfer Clean the heat exchanger fins with a a vacuum cleaner soft brush or compressed air 7 1 General Maintenance 1 2 3 Check the heat exchanger for dirt and debris Check functionality of the isolation valves Check the chilled water system for leaks Liebert DCD 40 Specifications 8 0 SPECIFICATIONS Table 7 Liebert DCD35 specifications Housing Material Steel Plate Coil Material Ambient Operating Temperature F C 50 95 10 35 Maximum Absolute Humidity 8 g kg Dimensions Door Only inches mm Height 78 3 4 2000 Width 23 5 8 600 Depth 6 151 Dimensions Door with Aluminum Profile inches mm Chilled Water Entering Temperature F C Height 78 3 4 2000 Width 23 5 8 600 Depth 7 3 8 186 Shipping Dimensions inches mm Height 24 610 Width 36 914 Depth 91 2311 Weight Ib kg Unit Only 200 90 7 Shipping 375 170 Chilled Water Connections Chilled Water Supply 1 NPT Chilled Water Return 1 NPT 53 6 F 64 4 F 12 C 18 C Chilled Water Leaving Temperature F C 64 4 F 75 2 F 18 C 24 C Maximum Operating Pressure bar psi 145 10 Exterior Finish Black Matte Heat Fused Powder Coat Safety CSA Approved Table 8 Replacement parts an accessories Quantity Required Part Name
15. required assemblies and parts have been received The Liebert DCD is shipped in protective packaging and secured to a pallet see Figure 5 Do not remove these protective items from the Liebert DCD before it is at the installation location Exercise care to prevent damage when unpacking and handling the Liebert DCD Liebert DCD 8 General Product Information 2 2 1 Figure 4 Recycle Packaging All material used to package this module is recyclable Please save the material for future use or dispose of it appropriately A A WARNING Risk of heavy module falling Can cause equipment damage injury and death Two properly trained and qualified people are required to move and install the module The Liebert DCD weighs 210 lb 95kg Do not leave a Liebert DCD standing unattended on its side or its end without adequate support to prevent it from falling over The Liebert DCD must be supported at all times or laid flat on protective material until it is installed CAUTION Risk of sharp edges splinters and exposed fasteners Can cause injury Only properly trained personnel wearing appropriate safety headgear gloves shoes and glasses should attempt to move lift remove packaging from or prepare the module for installation NOTICE Risk of a leaking coil due to freezing during improper storage Can cause equipment and serious building damage The heat exchanger and the supply pipes must be drained completely b
16. the Liebert DCD Frame on a DCM Rack 17 421 Required Tools 48 pieces RE Ra ES RR ge 17 4 3 Installing the Liebert DCD Dor 22 4 4 Installing the Liebert DCD Swivel Joint Covers 26 4 5 Reversing Door Handle 3 000 ea GHEE IAG GAR A Bh aS 28 5 0 PIPING gt Siem so tou mia st aa ea Sh dados 29 5 1 System Connection Configuration 29 5 2 Connection Methods and Points 32m ar vated res haa hides 31 5 3 Floor Cutout Dimensions for Installation with Bottom Connections 31 5 4 Insulation Sn e A RSA BALA ee Ba an nm 31 5 5 Chilled Water Distribution Units aa 88 an oe doute nn 31 5 5 1 Recommended Pipe Size 32 5 6 Open Loop Chilled Water Systems 32 5 7 Chilled Water Connections 32 e A a ER Se see ee Mer wesen iger 32 542 Service VAIS A ee ee ee Bas 32 5 1 8 Balanc ns Valves ts u se ARS ee erde Teng 32 5 8 Flexible PIpes a a een andren ia e 33 5 9 Connecting Liebert DCD Flex Pipe Hoses 35 5 10 Leak Checking car senen ai mern a ROE 35 dll Filling the Unit ses a a ie ain ae ee 36 5 11 1 Bleeding Air from Liebert DCD 36 6 0 INSTALLATION CHECKLIST AND SYSTEM FILL FOR STARTUP
17. the Liebert DCD units in a non interlaced configuration as shown in Figure 31 Liebert DCD Figure 30 Tichelmann ring piping Liebert DCD Liebert DCD Liebert DCP Figure 31 Typical Liebert DCD non interlaced piping Liebert DCD Liebert DCD Liebert DCP Liebert DCD 30 Piping 5 2 5 3 Connection Methods and Points Refer to site specific drawings for general locations of the piping connections For Liebert DCD connection locations refer also to Figures 32 and 33 The assembly and connection means used for piping the Liebert DCD system are the same as those used in conventional chilled water systems Observe all standard practices during installation and startup to prevent damage and contamination All piping must be ASTM Type L copper The Liebert DCD supply and return piping connection is 1 OD internal threaded copper pipe Supply and return pipes are marked by labels on the unit itself Torque for this connection is 147 lb ft 200 Nm Floor Cutout Dimensions for Installation with Bottom Connections Figure 32 Floor cutout dimensions width 23 5 8 600mm 23 5 8 600mm 4 3 4 120mm 2 1 8 54mm Figure 33 Floor cutout dimensions unit with aluminum profile width 23 5 8 600mm 5 4 5 5 23 5 8 600mm 7 3 8 186mm 2 1 8 54mm Insulation Insulate all piping for the Liebert DCD to minimize the possibility of c
18. to the fittings Tighten to 55 ft lb torque If a torque measuring device is not available hand tighten the connection then tighten an additional 1 2 flat 1 12 turn Connect the supply hose to the supply header see Figure 37 Connect the return hose to the return header see Figure 37 Hose connections to cooling water headers Supply Return 5 10 Leak Checking NOTICE Risk of leaking water Can cause equipment damage and serious building damage Check the chilled water system for leaks before commissioning Check the chilled water pipe connection to the heat exchanger regularly Tighten this connection if necessary When setting up the heat exchanger for the first time inspect the mechanical condition of the chilled water supply and connection thoroughly Confirm that the flow directions of field installed components are correct Confirm that all isolating valves are open Test the water quality when filling the system see 8 1 Water Quality Set the pressure at 145 psig 10 bars maximum for at least 30 minutes or according to local codes Repair any leaks 35 Liebert DCD Piping 5 11 Filling the Unit If using a chilled water distribution unit such as the Knurr CoolTrans or Liebert DCP refer to its user manual for instructions on filling the Liebert DCD and starting the system 5 11 1 Bleeding Air from Liebert DCD The Liebert DCD has two Schrader valves one at the top and one at the b
19. 1 Performance 3 5 m h 30 N al N oO al Oo al Entering Rack Temperature C 22 Entering Water Temperature Load kW o am 18 C Entering Water Temperature 12 C Entering Water Temperature Figure 42 Performance 15 4 US GPM N al Entering Rack Temperature F 99 esssssssese 71 6 F 22 C Entering Water Temperature Load kW am 644 18 C Entering Water Temperature 53 6 F 12 C Entering Water Temperature Liebert DCD 44 Specifications Figure 43 Performance 1 8 m h 35 w o N al N o o Entering Rack Temperature C al 0 2 4 6 8 10 12 14 16 18 20 essssssesss 22 C Entering Water Temperature Load kW 18 C Entering Water Temperature 12 C Entering Water Temperature Figure 44 Performance 7 9 US GPM 90 CO CH N al O O N o al o Entering Rack Temperature F al al 50 0 2 4 6 8 10 12 14 16 18 20 Load kW esssssss s e 71 6 F 22 C Entering Water Temperature ame 644 18 C Entering Water Temperature 53 6 F 12 C Entering Water Temperature 45 Liebert DCD Specifications Figure 45 Air side pressure drop Airflow cfm 0 500 1000 1500 2000 2500 3000 3500 4000 50 7 0 20 Y Sp L 0 16 Q 7 E 30 0 12 Q o Q 5 g 20 0 08 2 O YN a 10 0 04 0 0 00 0 1000 2000 3000
20. 45psi 10bar 15 Liebert DCD Installation 4 0 INSTALLATION These instructions apply only to installing the Liebert DCD on a DCM rack by Knurr For racks built by other makers refer to the instruction sheet shipped with the adapter kit to install the adapter and Liebert DCD frame A WARNING Risk of heavy module falling Can cause equipment damage injury and death Two properly trained and qualified people are required to move and install the module The Liebert DCD weighs 210lb 95kg Do not leave a Liebert DCD standing unattended on its side or its end without adequate support to prevent it from falling over The Liebert DCD must be supported at all times or laid flat on protective material until it is installed NOTICE Risk of improper installation and commissioning Can cause equipment damage Installation and commissioning of the Liebert DCD must be performed only by properly trained and qualified personnel All actions must be in accordance with regulations and the manufacturer s instructions NOTICE Risk of improper assembly Can cause unit to malfunction The Liebert DCD must be properly aligned and plumb with the rack to for the unit to function properly and without water leaks Use a carpenter s level to make sure this requirement is met when commencing the installation The hot and cold air within the case must be separated NOTICE Risk of airflow obstructions Can cause imprope
21. Precision Cooling For Business Critical Continuity Liebert DCD User Manual 4 EMERSON Network Power TABLE OF CONTENTS IMPORTANT SAFETY GUIDELINES 22222 8 cece cece ee eee nn nennen 1 SAVE THESE INSTRUCTIONS 2055055 Hr a ei 1 COMPONENT LOCATIONS AND MODEL NUMBER NOMENCLATURE 3 1 0 INTRODUCTION 1325 ras en AE RE age 5 1 1 EE a Dd de Rg eae ek 5 1 2 Pre Installation Checks 22 A Da EN BEE ENEE EE 5 1 3 Installation Considerations os is Er Bu 5 1 4 Room Preparation a Pel a un 5 1 5 Storage And Transportation za a BEN 6 2 0 GENERAL PRODUCT INFORMATION 7 2 1 Product System Description 00 0 eee nent nent eens T 2 2 Checking and UnpackIdg8 0 eee ee ne tenet eens 8 224 Recycl Packaging nas rs een ee Oe EE OE rennt 9 2 2 2 Module Handling sen ur ia AE Pa ara a A are re 10 2 2 3 Unpacking the Module 10 3 0 MECHANICAL CONSIDERATIONS 22 2 2 0000 eee e eee eee eee eee eee eee 12 3 1 Liebert DCD Dimensions an en a a BESS aS wit wa MORAG A bis an 12 3 2 Cooling Principle a sr RE amine ES ER Bar NA BS ROA A 13 3 3 Determining Placement in the Conditioned Space 13 34 POPNOW dees een in een ED fd Sue a 14 3 5 AN be AS RS Ee Ee OCS aa Fee SEE 14 3 6 Water Temperature eig ass ns SAR BPA gi Rael cada RTA aR EN Bana 15 4 0 INSTALLATION geed a I ASA rer an 16 4 1 Liebert DCD Frame Drenaratonsg na 16 4 2 Installing
22. a center the volume of water is limited to the amount in the secondary piping system instead of the amount in the entire building chilled water system Figure2 Generic piping layout Liebert DCP Liebert DCD Liebert DCD Room air is drawn in through the front of the rack and picks up heat from the servers Cooling occurs when the server exhaust air passes through the Liebert DCD s heat exchanger see Figure 3 The air is moved through the heat exchanger by the server fans The Liebert DCD is not expected to produce any condensation because of its location within the conditioned space and if connected to a Liebert DCP or if the chilled water temperature is maintained above the dew point A condensate pan is provided as a precaution It has a drain fitting to allow any condensate to be emptied 7 Liebert DCD General Product Information Figure 3 Top view of rack with Liebert DCD 2 2 Liebert DCD Warm Recirculation Prevented Front of Rack Checking and Unpacking Upon arrival of the module and before unpacking it verify that the labeled equipment matches the bill of lading Inspect all items for visible and concealed damage Damage should be immediately reported to the carrier and a damage claim filed with a copy sent to Emerson or to your sales representative If concealed damage is later found report it to both the shipping company and your local Emerson representative Check to be sure all
23. allation Figure 22 Tightening piping 17 Check to ensure the door swings freely 44 installing the Liebert DCD Swivel Joint Covers Too Reguired Socket hexagonal screw driver 5 16 Allen 8mm for M5 screws The Swivel Joint Covers can be identified by the number of identification holes on each cover Figure 23 Swivel joint cover identification and location 1 Identification Holes The Liebert DCD is set up for left side hinges The hinges can be put on the right side by flipping the door Left Side Hinges Right Side Hinges Liebert DCD 26 Installation Open the Liebert DCD door the door must be open for the Swivel Joint Covers to be installed Install the outer Swivel Joint Covers on the door see Figure 24 Install the inner Swivel Joint Cover on the frame see Figure 25 E Figure 24 Outer swivel joint cover locations Lower Swivel Joint Cover Upper Swivel Joint Cover Figure 25 Inside swivel joint cover locations Swivel Joint Cover Location 4 Fasten screws using the hexagonal screwdriver or socket wrench 5 Connect the earth ground wire of the door to the frame of the Liebert DCD see Figure 26 Figure 26 Securing ground wire Ground Wire connected bottom corner of Liebert DCD 27 Liebert DCD Installation 6 Use a diode or multimeter to deter
24. bert DCD pipe Tighten with a torgue wrench Hold the brass body stationary 21 Liebert DCD Installation 4 3 Installing the Liebert DCD Door Required Tools Socket hexagonal screw driver Allen 8mm for M5 screws 5 16 Torque wrench e Phillips screw driver PH3 Utility knife A WARNING Risk of heavy module falling Can cause equipment damage injury and death Two properly trained and qualified people are required to move and install the module The Liebert DCD weighs 210 lb 95kg Do not leave a Liebert DCD standing unattended on its side or its end without adequate support to prevent it from falling over The Liebert DCD must be supported at all times or laid flat on protective material until it is installed 1 Attach the three door hinges to the Liebert DCD door with the supplied screws 2 Turn the Liebert DCD face down handle side down and lay it on the protective material 3 Vent the low pressure holding charge in the Liebert DCD by removing the cap on the Schrader valve and depressing the valve pin 4 Replace and secure the cap on the Schrader valve Figure 16 Schrader valve Schrader Valve at top of Liebert DCD door 5 Loosen the coil plug This requires two adjustable wrenches in the wrench arrangement shown in Figure 17 One wrench holds the Coil Inlet Fitting stationary and the other turns the plug to remove it NOTICE Risk of improper coil plug removal Can cause damage
25. d one of the short flexible pipes onto the coil connection by hand to ensure that the threads properly mate see Figure 20 Tighten to 350 in lb 39 5Nm NOTICE Risk of improper tightening Can cause equipment damage Turn only the nut on the flexible pipe when tightening this connection Moving the coil connection may damage the coil Pull the flexible piping slightly to elongate it enough to connect the union nuts NOTICE Risk of overextending the flexible pipe Can cause equipment damage Pull the flexible piping slightly to elongate it This makes the piping long enough to connect the union nuts Only a slight elongation is necessary Pulling too hard will overextend the pipe making it hard to fit and possibly causing leaks Liebert DCD 24 Installation Figure 20 Aligning pipes Elongate this flexible pipe by pulling on it N slightly Do not overextend the pipe 15 Insert the sealing ring in the door s lower piping see Figure 21 Figure 21 Inserting sealing ring Insert Sealing Ring in lower pipes 16 With the door fully open use a torque wrench tighten the union nuts to 64 ft Ib 85Nm Ifa torque wrench is not available use two wrenches to reduce the stress on the pipes see Figure 22 Open end wrench 1 5 8 41mm or an adjustable wrench with maximum size of 2 61mm Open end wrench 1 7 16 36mm or an adjustable wrench with maximum size of 2 61mm 25 Liebert DCD Inst
26. efore the unit is stored Compressed air can be used to remove the water Remove all the vents and the screws before storing NOTICE Risk of improper storage Can cause module damage and serious building damage Keep the module indoors and protected from dampness freezing temperatures and contact damage NOTICE Risk of damage from forklift Can cause exterior and or underside damage Keep the forklift s tines level and at a height suitable to fit below the skid Recommended module handling equipment 9 Liebert DCD General Product Information 2 2 2 2 2 3 Module Handling A WARNING Risk of heavy module falling Can cause equipment damage injury and death Two properly trained and qualified people are required to move and install the module The Liebert DCD weighs 210 Ib 95kg Do not leave a Liebert DCD standing unattended on its side or its end without adequate support to prevent it from falling over The Liebert DCD must be supported at all times or laid flat on protective material until it is installed Exercise care to prevent damage when unpacking and handling the module Use a forklift or pallet jack to move the Liebert DCD If multiple Liebert DCD modules are delivered they will be shipped on a pallet with up to four modules A pallet jack will be required to move these modules to the installation location Ensure that the fork tine length is suitable to safely move the packaged module Units
27. ence Can cause module or structural damage The module may be too tall to fit through a doorway while on the skid Measure the module and doorway heights and verify clearances by referring to the installation plans and other site specific drawings and documents before moving the module NOTICE Risk of a leaking coil due to freezing and or corrosion Can cause equipment damage and serious building damage Cooling and heat rejection coils heat exchangers and piping systems that are connected to open cooling towers or other open water glycol systems are at high risk for freezing and premature corrosion Fluids in these systems must contain the proper antifreeze and inhibitors to prevent freezing and premature coil corrosion The water or water glycol solution must be analyzed by a competent water treatment specialist before startup to establish the inhibitor requirement The water or water glycol solution must be analyzed every six months to determine the pattern of inhibitor depletion The complexity of water caused problems and their correction makes it important to obtain the advice of a water treatment specialist and follow a regularly scheduled maintenance program NOTICE Risk of leaking chilled water lines Can cause equipment and building damage Lines and joints must be inspected regularly Improper installation application and service practices can result in water leakage from the unit Water leakage can result in severe property damage
28. g up 11 Liebert DCD Mechanical Considerations 3 0 MECHANICAL CONSIDERATIONS 3 1 Liebert DCD Dimensions Figure 6 Liebert DCD door dimensions 47 19 3 8 493mm Water Supply 120mm 1 Internal Thread 1 8 LT atom 0 9 24mm Water Return i 1 Internal Top View Thread Section A A 2 52mm 4 a A R Bottom View Zu 08 014 100 X 119 X ae ET 600mm Pg 1 Rev C Liebert DCD 12 Mechanical Considerations 3 2 Cooling Principle The server fans force air heated by the rack equipment through the unit s air water heat exchanger where it is cooled The air side pressure drop flow rate dependency curve is shown in Figure 45 Figure 7 Side view of rack with Liebert DCD Cooling Water gt Connections Top Cooling water supply and return connections are supplied at each end of the Liebert DCD Connections must be made at only one end either the top or the bottom of the Liebert DCD Al r Outlet Rack Liebert DCD E DO Equipment Cooling Water Connections Bottom Air Barrier NOTE Before using the Liebert DCD the system and rack equipment must be checked to determine whether they match hydraulically In particular the server fans must be able to generate sufficient pressure to drive the air through the Liebert DCD NOTE In case of chilled water supply system failure the coo
29. h with quick connections see Figure 35 The kit consists of the hose a threaded adapter for to attach to the Liebert DCD and an adapter to connect to the field header Figure 35 Liebert DCD Flex Pipe connection kit and header adapter 1 Female NPT Connection to Piping 1 Quick Connection Drawing is not to scale 1 Seal Lok Threaded Connection L Nominal 10ft 3m Minimum Bend Radius 10 254mm RA Part 310530G1 Le DPN002611 1 Male NPT Rev 0 Connection to Unit 33 Liebert DCD Piping Figure 36 Pipe bend radius acceptable and unacceptable Acceptable Bend Radii Unacceptable Bend Radii CLD CD a Y 8 Lech A ED 8 KW I 1 CD Liebert DCD 34 Piping 5 9 Connecting Liebert DCD Flex Pipe Hoses 1 oR ON gt Figure 37 Connect the supply hose header adapter to the supply header Connect the return hose header adapter to the return header Connect the supply hose door adapter to the Liebert DCD supply connection Connect the return hose door adapter to the Liebert DCD return connection Connect the hoses
30. ling is provided either by adjacent Liebert DCD and or the room cooling system In this case the equipment waste heat is released into the room 3 3 Determining Placement in the Conditioned Space Refer to site specific drawings for exact placement Efficient cooling depends on proper equipment placement proper use of plates in any voids in the rack and good cable management Ensure that there is 25 6 649mm clearance in the rear to allow the door to open fully 13 Liebert DCD Mechanical Considerations 3 4 Air Flow The server fans draw air into the rack where the equipment heats it The server fans force the heated air across the Liebert DCD coil The Liebert DCD has a low air side pressure drop similar to a rack with perforated doors Figure 8 Generic airflow diagram Enclosure Rack Shown from Side Liebert DCD Critical Equipment Front Rear of of Rack Rack Cooling Water Connections NOTE To provide optimal cooling strict separation between the hot and cold air must exist within the rack and all the bushings network cables piping etc must be sealed to prevent air leakage Air bypass and recirculation can severely reduce the cooling effectiveness of the Liebert DCD Blanking plates must be installed in any voids in the rack to prevent air bypass and air recirculation Keep the Liebert DCD s coils clear of any obstructions that may block the airflow Contact the factory for fur
31. m of server cabinet are blocked and any cable entries are sealed to minimize air leakage Location Customer Site Name Date Installer Signature Customer Site Address Site Contact Phone Number Installer Name Installer Address Ambient Room Temperature F C Room Humidity at Site of Commissioning Relative Humidity 37 Liebert DCD Installation Checklist and System Fill for Startup Liebert DCD Serial Comments Check of alignment Yes No Shipping damage Yes No If yes has the shipper been notified Yes No Residual packaging removed Yes No Assembly tools removed Yes No Table 6 Building chilled water system With Glycol Glycol Type Chilled Water Without Glycol Liebert DCD Connected to Building Chilled Water Liebert DCP Chilled Water Temperature Supply C F primary Return C F Suppl bar Suppl si Chilled Water Pressure EPS PRE E Return bar Return psi Liebert DCD Flexible Hose Connection External Flow Regulator External Isolation Valves Liebert DCD 38 Installation Checklist and System Fill for Startup Mechanical Functions Damage to Heat Exchanger None Existin Connections Fins Tubes S
32. mine that the connection is properly grounded 7 Check functionality of the door lock The Liebert DCD is equipped with a half inch cylinder lock and keys 45 Reversing Door Handle If installing the Liebert DCD for top chilled water connection the handle would be upside down The handle will function but can be reversed for convenience To reverse the handle 1 Open the door and remove all the bolts holding the door handle and lock assembly including the four brackets Studs and nuts secure the brackets to the door frame 2 Flipthe door handle and lock assembly 180 degrees and reattach it with the bolts and nuts 3 Check the handle and lock to ensure they operate properly Figure 27 Reverse door handle Remove all four similar bolts securing the door lock assembly there are two above the lock and two below Door Lock three bolts Liebert DCD 28 Piping 5 0 PIPING 5 1 Refer to site specific drawings for general locations of the piping connections The drawings should specify where the piping connects to the Liebert DCD NOTICE Risk of coil and piping rupture Can cause equipment damage and major fluid leaks resulting in serious building damage expensive repair costs and costly system down time Thermal expansion of the cooling fluid without means of expansion can cause the coil and piping to rupture spilling cooling fluid in the conditioned space This can be caused among other ways by cl
33. nfiguration number Unit code and component location Model number part 1 2 Model Details Part 2 2 1 T2 Ts Tara Ter Taro 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 DIC D 3 5 A 6 3 3 0 0 00 O 0 G O0 O0O O0 O S A 0 012 1 3 Product Name DCD ENP DCD 4 5 Nominal Cooling Capacity 35 35 kW 6 Rack Height A 78 6 8 2000mm 7 Rack Width 6 23 5 8 600mm 8 Rack depth 3 Third Party Rack Adapter 0 No Rack 9 Chilled Water Connection Hinge Position 3 Bottom Left 10 Options 0 No Options 11 15 Not Used 0 No Options 16 Color G RAL 7021 dark gray 17 20 Not Use 0 No Options 21 Packaging Type S Seaworthy Air Freight Long Distance Wooden Crate 22 SFA Special Features X SFA s Included A No SFA s 23 25 Revision Identifier 002 Liebert DCD 4 Introduction 1 0 INTRODUCTION 1 1 References This document must be used together with site specific documentation and documentation for other parts of the system 1 2 Pre Installation Checks Check the received materials to be sure all required assemblies and parts have been received Report any external damage to the shipping company and your local Emerson representative Table 2 Packing list Part Part Number Quantity
34. ondensation Chilled Water Distribution Units Utilizing a chilled water distribution unit provides these benefits Isolation of the building s chilled water circuit from the chilled water circuit within the data center The Liebert DCP circulates the chilled water to Liebert DCD while preventing condensation by maintaining the water temperature above the room dew point Ensures that the proper flow rate to the Liebert DCD is occurring This is a critical factor in achieving and maintaining the needed capacity Separation of the data center from the building chilled water circuit also minimizes the impact of aleak within the data center Should a leak occur within the data center the volume of water is limited to the amount within the secondary piping system instead of the entire building chilled water system 31 Liebert DCD Piping 5 5 1 Recommended Pipe Size Elbows and restrictions should be minimized to establish sufficient fluid flow Table 5 Recommended pipe sizes Piping Run Nominal Pipe Size inches Supply or Return Mains 2 5 8 Supply or Return Branches gt 10 ft 1 3 8 Supply or Return Branches lt 10 ft 1 1 8 5 6 Open Loop Chilled Water Systems Maintaining the proper chilled water flow rate is critical in achieving the Liebert DCD s design capacity If a chilled water distribution unit such as the Liebert DCP is not being used steps must be taken to ensure the proper flow at the unit
35. osing the ball valves on both the supply and the return pipes Always allow for thermal expansion either by leaving at least one of the valves open or by opening the Liebert DCD s bleed valve see Figure 38 System Connection Configuration If possible when using a chilled water distribution unit such as the Liebert DCP connect the Liebert DCD in an interlaced configuration see Figure 28 In an interlaced configuration half the cooling modules in an aisle are connected to one chilled water distribution unit and the other half are connected to another chilled water distribution unit Interlacing the connection piping will keep half the Liebert DCD units operating and maintain cooling in the conditioned space should one chilled water distribution unit fail Figure 28 Typical Liebert DCD interlaced piping Liebert DCD Liebert DCD Liebert DCD Liebert DCP Liebert DCP Liebert DCD Liebert DCD Liebert DCD When using a chilled water distribution unit such as the Liebert DCP a ring design see Figure 29 or Tichelmann ring see Figure 30 design may be employed In these designs the pressure drop for each of the units is approximately the same which results in even cooling performance 29 Liebert DCD Piping Figure 29 Ring piping Liebert DCD Liebert DCD Liebert DCP Liebert DCP Liebert DCD Liebert DCD Liebert DCD However if a ring configuration is not possible connect
36. ottom The two valves permit rotating the Liebert DCD so that the unit may have bottom or top chilled water connections Air trapped in the unit or piping must be bled from the valve at the top Opening the lower valve will release water NOTICE Risk of water release Can cause eguipment and building damage The Schrader valve at the upper side of the Liebert DCD must be used when bleeding air from the unit Opening the lower Schrader valve will release water 1 Find the Schrader valve at the top of the Liebert DCD see Figure 38 2 Depress the pin to open the valve 3 Keep the Schrader valve open until the water coming out has no bubbles Figure 38 Schrader valve location Schrader Valve Liebert DCD 36 Installation Checklist and System Fill for Startup 6 0 INSTALLATION CHECKLIST AND SYSTEM FILL FOR STARTUP Checks to be Performed Check device for damage upon receipt Done to be signed upon completion Remarks Install and align to server cabinet Flexible hoses connected optional properly Packaging removed from the Liebert DCD All assembly tools removed Bushings installed properly Chilled water connections leak proof pressure tested Air bled from coil Chilled water flow adjusted to proper flow rate Condensate line connected if applicable and routed to a suitable drain Unused server space is blocked with blanking panels Top and botto
37. p Server Cabinets liebert upstech emerson com 800 222 5877 Outside North America 00800 1155 4499 Three Phase UPS amp Power Systems 800 543 2378 Outside North America 614 841 6598 Environmental Systems 800 543 2778 Outside the United States 614 888 0246 Locations United States 1050 Dearborn Drive P O Box 29186 Columbus OH 43229 Europe Via Leonardo Da Vinci 8 Zona Industriale Tognana 35028 Piove Di Sacco PD Italy 39 049 9719111 Fax 39 049 5841 257 Asia 29 F The Orient Square Building F Ortigas r Road Ortigas Center Pasig City 1605 Philippines 63 2 687 6615 Fax 63 2 730 9572
38. paced Door Handle Side of DCM Insert three Diamond Nuts in the face of this aluminum profile Mark the profile s upper side so they can be easily found Upper Horizontal Frame Member Marks to show position of Diamond Nuts Lower Horizontal Frame Member 4 Lay the Liebert DCD frame on the protective material Liebert DCD 18 Installation 5 Insert the spring nuts into the groove of the vertical aluminium profile see Figure 10 6 Move spring nuts to the marked positions using a scratch awl or similar tool Figure 10 Spring nuts Spring nut in T Slot This end of spring nut flips over and nut slips into T Slot T Slot 7 Insert three diamond nuts into the groove of each horizontal member of the rack aluminium profile in the marked positions see Figure 9 The diamond shape prevents them from turning while being tightened 8 Attach the self adhesive foam strip on the hinge side of the aluminium profile to seal the gap between the rack and the Liebert DCD s frame 9 Trim the foam strip if necessary see Figure 11 Figure 11 Applied foam strip Foam Strip A on Rack Frame 10 Install the condensate drain assembly refer to Figure 12 a Get the condensate drain parts from the parts bag b Press the Condensate Hose Adapter into the top half of the drain assembly until it snaps into place The top of the Condensate Hose Adapter will extend above the top half of the d
39. piping vepsere eera 000 30 Typical Liebert DCD non interlaced piping 30 Floor cutout dimensions width 23 5 8 600mm 31 Floor cutout dimensions unit with aluminum profile width 23 5 8 600mm 31 Chilled water connections 32 Liebert DCD Flex Pipe connection kit and header adapter 33 Pipe bend radius acceptable and unacceptable 34 Hose connections to cooling water headers 35 Schrader valve locations A dai un aan 36 Performance 5 2m h an ar da a 4 43 Performance 22 9 US GPM ii 43 Performance DM FUF 44 Performance 15 4 US GPM ii 44 Performance 1 8 m h a A RA Dee an 45 Performance 7 9 US GPM o vesies aA de HR ee Benni ia a 45 ATEO O pressure drop secon ee a hee AN ern ne oa ee in E 46 Water side pressure drop 46 TABLES Configuration number Unit code and component location 4 Packing Ste ae mn Renee Lee EE EEN uu 5 Application condition Lai AA an BALE Di el ea Da Lu 15 Required factory supplied parts 0 0 cee teen eee een a 17 Recommended pipe sizes 2 ss 32 Building chilled water system 38 Liebert DCD35 specifications acc nase nn 41 Replacement parts an accessories
40. r air circulation To ensure sufficient air circulation make sure there are no obstructions e g packaging materials tools etc left in the unit or cabinet In particular check the Liebert DCD s grids heat exchanger air intake and the air outlet 41 Liebert DCD Frame Preparations The Liebert DCD mounts on the rear of the rack Before attaching the frame remove the rear door from the rack Refer to the rack s installation manual for details If the Liebert DCD was supplied with an aluminum profile and will be attached to a DCM rack remove the profile from the Liebert DCD by removing the screws 4 NOTE Tf installing the Liebert DCD on any type of rack other than the DCM an adapter kit is necessary Follow the installation instructions included with the rack adapter kit for the specific rack Once the adapter kit and frame are installed continue the installation following the steps in 4 8 Installing the Liebert DCD Door Liebert DCD 16 Installation 4 2 Installing the Liebert DCD Frame on a DCM Rack 4 2 1 Required Tools Phillips screwdriver PH3 Adhesive backed foam factory supplied Utility knife 8mm socket and driver Scratch awl Marker Adjustable wrench with a maximum adjustment size of 2 inches 51mm Torque wrenches 1 1 2in 38mm and 1 7 16 86mm Table 4 Required factory supplied parts Part Name Liebert Part Quantity l Spring Nuts 000782699 16 Diamond N
41. rain assembly Put the O ring seal on the insert d Insert the assembly in the top of the condensate drain hole e Screw the nut onto the top half of the assembly tightening it firmly by hand o 19 Liebert DCD Installation Figure 12 Condensate drain assembly Condensate Hose Adapter Bottom Nut Condensate Hose Adapter Sn extends above op Half o gt top of top half Assembly O Ring of assembly O Ring fits against bottom of Liebert DCD 11 Connect the Condensate Hose Adapter to the Condensate Tray 12 Lift the Liebert DCD frame and align it with the server rack again Figure 13 Align the Liebert DCD frame with the rack 13 Insert and partly tighten bolts to hold it in place NOTE Performing this step may be easier if a board or similar object is placed under the DCD frame to hold it in place 14 Insert and lightly tighten the bolts working all around the perimeter to prevent the frame from twisting and to ensure the parts fit properly see Figure 14 15 Torque the screws all around the perimeter to 2 ft Ib 3 Nm 16 Verify that the frame is not twisting Liebert DCD 20 Installation Figure 14 Tighten screws on frame 17 Thread the brass swivel fitting to the frame by hand to ensure the threads mate properly 18 Hold the brass body so that it does not rotate and use a torque wrench to tighten to 64 ft Ib 85Nm Figure 15 Brass swivel fitting threaded onto Lie
42. ther information Refer to the user manual supplied with the rack the Liebert DCD is mounted on 3 5 Water Quality For reliable function of the Liebert DCD chilled water must be available in an appropriate amount at the appropriate temperature and pressure The water quality must be in accordance with VGB R 455 P see 8 1 Water Quality Liebert DCD 14 Mechanical Considerations Water Temperature The cold water supply temperature must be higher than the dew point temperature of the cold space Failure to maintain the cold water supply temperature above the room dew point will result in condensation The Liebert DCD is designed only for sensible cooling dehumidification of the room by means of the Liebert DCD must be avoided The built in condensate tray with condensate drain is designed only for a short term condensation Table 3 Application conditions Operating Ambient Temperature 50 F 95 F 10 C 35 C Other Temperatures on Request Maximum Absolute Air Humidity on Site 8g kg Chilled Water Temperature Intake 53 6 F 12 C Other Temperatures on Request Chilled Water Temperature Outlet 64 4 F 18 C Other Temperatures on Request Water Temperature Difference 10 8 F 6 K Use of Glycol On Request Not Recommended Chilled Water Connection Rack Rear Side Top or Bottom Connection 1 NPT Condensate Tray Drain Connection Rack Rear Side 5 8 Maximum Operating Pressure 1
43. to the coil It is imperative that the coil inlet fitting is held stationary and the coil plug is turned Turning the coil inlet fitting can damage the coil Figure 17 Loosen the coil plug Pe Inlet Plug Wrench ge removes plug Wrench ae holds fitting ide K o stationary ik Coil Inlet Fitting s Hold stationary while removing plug Liebert DCD 22 Installation 6 Remove any debris and wipe the threaded surfaces clean Align the door to the frame see Figure 18 8 Set the door in the frame Angle the bottom of the door toward the frame and insert the door see Figure 18 a NOTE Performing this step may be easier if a board or similar object is placed under the DCD frame to hold it in place Figure 18 Frame and door alignment 9 Fasten the door hinges to the frame starting with the top hinge and finishing with the bottom hinge see Figure 19 NOTE Tilting the door may ease installing the hinge bolts 23 Liebert DCD Installation Figure 19 Door Hinges 4 Screws in Each 10 11 12 13 14 Liebert DCD door hinge location Tilt the door to ease bolt installation Check that the door moves freely If there are any irregularities or roughness in the movement of the door Check for obstructions or loosen screws of the hinges and adjust alignment Tighten any loose screws Apply pipe wrap or plumber s dope to the coil connection Threa
44. urface Ang Remarks Thermodynamic Checks Pipe Duct Inlets Cable Sealed Yes No Remarks Condensed Drain Connected Yes No Remarks Thermodynamic Checks Condensate on Coil Surface Yes No Remarks Chilled Water Entering Heat x F C Exchanger Chilled water leaving heat o o F C exchanger Cabinet Temperature in Front of F C Heat Exchanger Cabinet Temperature Behind of o A F C Heat Exchanger Chilled Water System Bled Yes No Chilled Water System Pressure Yes No Tested Proper Chilled Water Flow Rate Yes No Set to Liebert DCD GPM External Volume Flow Um External Correctness of values above is hereby affirmed Startup Performed By Date Signature Customer Date Signature 39 Liebert DCD Maintenance 7 0 MAINTENANCE CAUTION Risk of improper repair and maintenance Can cause reduced unit performance equipment damage and injury All maintenance and repair jobs must be performed by properly trained and qualified personnel Wear OSHA approved head and eye protection gloves and arm protection when performing repairs and maintenance Close off the coolant fluid supply valve and relieve coolant fluid pressure before disconnecting piping connections All actions must be in accordance with regulations and the manufacturer s instructions Use only Emerson approved tools and parts for maintenance and repair NOTICE Risk of dirty heat exchanger Can cause reduced unit performance increased pressure drop or
45. uts 000770869 7 Self Adhesive Foam 309894P3 1 Bolts Condensate Drain Kit After removing the packaging lift the Liebert DCD from the pallet or from the protective material Align the frame of the Liebert DCD with the rear of the equipment rack Bottom Chilled Water Connections ensure that the chilled water connections are pointing down see Figure 1 Top Chilled Water Connections rotate the frame 180 Align the frame of the Liebert DCD with the rear of the equipment rack Use a marker or scratch awl to mark the positions for the 17 bolts that will attach the frame to the DCM refer to Figure 9 Bolts will be inserted in Five frame holes on the aluminum frame member on the door handle side of the rack Three spring nuts near the top of the hinge side of the rack Three spring nuts near the bottom of the rack Three diamond nuts in the face of the rack s top frame member Three diamond nuts in the face of the rack s bottom frame member 17 Liebert DCD Installation Figure 9 Position of frame holes spring nuts and diamond nuts on the DCM Insert spring nuts at these six points on the inside of the frame and mark their position so they can be found easily while installing the Liebert DCD Diamond Nut Insert three Diamond Nuts in the face of this aluminum profile Mark the profile s upper side so they can be easily found Five bolt holes in the aluminum profile on this side are evenly s
46. y sealed to minimize leaks and must not contain ventilation grilles 5 Liebert DCD Introduction 1 5 Storage and Transportation Keep the Liebert DCD in its original packaging protected from the weather and in dry conditions Protect the unit s working parts from sand rain dust and other particles and contaminants Store at temperatures between 22 F and 122 F 30 C and 50 C the chilled water circuit must be empty during storage After storage for a year or longer the water bearing hinges must be inspected for functionality Remove all packaging before starting the unit Chilled water connections are not load bearing and must not be used as handles When transporting the Liebert DCD always make sure the device is properly fastened and secured against slipping A WARNING Risk of heavy module falling Can cause equipment damage injury and death Two properly trained and qualified people are required to move and install the module The Liebert DCD weighs 210lb 95kg It must be securely and properly fastened to the forklift or pallet jack if being used to move the unit NOTICE Risk of a leaking coil due to freezing during improper storage Can cause equipment and serious building damage The heat exchanger and the supply pipes must be cleared of any water before the unit is stored either before storage or after removal from a cabinet Compressed air can be used to remove the water Remove all the vents
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