Manuale d’uso / di manutenzione del prodotto XDK del fabbricante Liebert
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Precision Cooling For Business -Critic al C ontinuity™ Li eber t X D K ™ Ra ck Enc lo sure With In t egrat ed W at e r -Ba sed C ooling User Ma nual –17 kW.
I MPORT ANT S AFETY I NSTRUCTIONS SA VE THESE INSTRUCTIONS Liebert engineers will provide comprehensive support on how to install the XD K. Extensive material , function and qual ity checks ensu re that you fully benefit from product functions and a long service life.
i T ABLE OF CONTENTS I MPORT ANT S AFETY I NSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I NSIDE F RONT C OVER 1.0 I NTRODUCTI ON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ii FIGURES Figure 1 Cooling airflow, to p view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Figure 2 Cooling airflow, side view . . . . . . . . . . . . . . . . . . . . . . . . . .
Introd uction 1 1.0 I NTRODUCTION The Liebert XDK provides the dissip ation of heat loads up to 17kW. The server rack is closed to the in stallation area, that means no heat lo ad will dissipate to th e envi- ronment. (see also chapter 2.) The cooling is prov ided by a closed cooling sy stem via an air-t o-water heat exchanger.
Operating Co nditions 2 2.0 O PERATING C ONDITIONS 2.1 Proper Application The XDK is a water-cooled enclosure and is intend ed for removing heat from electronic equipment inside the ca binet. The cooling system in the cabinet is thermally independent of the room air.
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 b y equipment in the cabinet, s uch as servers, is removed by the cold water system integrated into the server cabinet.
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 h eat exchanger by high -performance fans. The heated air is c ooled to 68-77°F (20-25°C) and fed to the front of the server .
Description 5 3.2.1 Dat a Overview—XDK T able 2 T echnical dat a 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.
Description 6 3.3 Control The server cabinet tempe rature is co ntrolled by the fan control board A temperature sensor continuously measures the temp erature of the server cabinet (server feed air). The air circulation flow rate is cont rolled by the fan speed according to the current thermal load.
Description 7 3.4.1 Function Front and rear door are kept closed with two electr omagnets. The door will be pushed open smoothly by a gas pressure spring if po wer to the electromagnets fails. If the doors are open ed, the thermal lo ad can escape into the room, preventing the servers from over- heating.
Description 8 3.4.3 Manual Closing 1. Press LED switch for electromagnet activation 2. The LED lights up 3. Push door e venly shut. Both magnetic locks must latch.
Equipment Inspec tion, Handling And S torage 9 4.0 E QUIPME NT I NSPECTIO N , H ANDLING A ND S TORAGE Upon arrival of the unit, and before unpacking, veri fy that the la beled equi pment matches the bill of lading. Inspect all items for damage, either visibl e or concealed.
Equipment Inspec tion, Handling And S torage 10 4.3 Storage • If the XDK’s packag ing has been removed, cover i t with tarpaulins to protect aga inst particulates, such as sand and dust, and fro m moisture. • Keep storage temperature between -22°F and 104°F ( -30°C and +40°C).
Installation an d Commissioning 11 5.0 I NST ALLATION AND C OMMISSIONING 5.1 Preparation for Inst allation To achieve good air circula tion, ensure that there is no packagin g material or other equipm.
Installation an d Commissioning 12 5.3 W ater Connectio n The heat exchange r can be pulled out for servicing Water pipes should be connected so that the heat exchanger can be pulled ou t when the connection is undone.
Installation an d Commissioning 13 Figure 8 Heat exchanger Figure 9 Heat exchanger connection Liebert recommends insulating the co ld wat er pipes with waterp roof insulation to pr event condensa- tion and losses.
Installation an d Commissioning 14 Figure 10 Bottom plate with cutout s Cable and pi pe openings must b e seal ed air-tight on completion of work. 5.4 Condensed W ater Connection If the XDK is operated below dew point, condense d water may occur.
Installation an d Commissioning 15 The condensate drain is not pressurize d; a condensate pump can be used. 5.5 Electrical Connection The wiring diagram is enclosed in the unit. As soon as all prepa rations for installati on have been made, you can start electrical i nstallation.
Servicing and Mainten ance 16 6.0 S ERVICING AND M AINTENANCE 6.1 General Inspection on Fans—Annual • Check for unusual bearing noises. (C heck for excessive bearing play.) 6.1.1 Fan Replacement The expected service life is approximate ly 40,000 operating hours at a temperature of 40°C (104°F).
Servicing and Mainten ance 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.
Servicing and Mainten ance 18 6.3 Replacing the Heat Exchanger Figure 12 Heat exchanger replacement Reinstall the heat exchanger by reve rsing the reverse order of removal. NOTE Regularly check the condensed wa ter drain and clean if necessary Step 1: Lif t the air duct off the flange to remove it.
Dismantling and Disposal 19 7.0 D ISMANTLING AND D ISPOSAL The XDK may be dismantled by qual ified personnel o nly. Disconnect the unit from the external water circuit by closing the shutoff valv es and drain the unit’s water circuit. Transport the unit a s described in 4.
Water Purity Requirements 20 8.0 W ATER P URITY R EQUI REMENT S To ensure the maximum service life of the air/water heat exchange rs, water must comply with the VGB water regulations (VGB-R 455 P) . The water used must be soft en o ugh to prevent deposits, but it must not be so soft that he at exchanger corrosion occurs.
Water Purity Requirements 21 8.1 Unit Inst allation 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.
Water Purity Requirements 22 8.2 Commissioning Certificate Nominal va lues kept ___ 1. Yes ___ 2. No T able 6 XDK – Commissioning certificate General Data Client/Setup Site Client Name Client Addres.
Water Purity Requirements 23 Configuration T able 8 T ype of cabinet XDK 17kW Cabinet Number Serial Number Date Shipped Fan Type T able 9 Control of st atus General Condition Load Carrying Capacity Ch.
Water Purity Requirements 24 . T able 10 Cold water facility on site Cold Water XDK Connected To Water Temperature Feed °C/°F Return Water Pressure Feed PSI (Pa) Return PSI (Pa) Water Differential P.
Water Purity Requirements 25 Commissioning performed by day to day ope rating. Correctness of function check protocol certified by : Malfunction Indicator Function Yes No Comments Condensate Occurrenc.
Water Purity Requirements 26.
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Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Liebert XDK è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Liebert XDK - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Liebert XDK imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Liebert XDK ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Liebert XDK, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Liebert XDK.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Liebert XDK. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Liebert XDK insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
