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Liebert® RDC™ Remote Distribution Cabinet

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1. 23 1 8 9 Summary Alarni ee aa e Ae suh eee ie 23 2 0 EQUIPMENT INSPECTION AND BTARTUP 24 2 1 Internal Inspection wa suu yaz gu EE AM LESS E GA SS 24 2 2 StartUp ded Slee 24 3 0 INSPECTION AND STARTUP CHECKLIST 25 3 1 InSpectiotis ut q Ee a A Ie LE DS 25 3 2 uo M EE 26 3 3 Monitoring System Check Out 26 4 0 OPERATING INSTRUCTIONS 0 000 cece eee eee eee eee eee 27 4 1 Startup Procedures xs AS EEG LO a ORG REA 27 4 2 Normal System shutdown ZENNER u a A VR CEU pP 27 4 3 Normal System Turm ON cas eee tere Ree RI ine hang e REA A RP ES 27 4 4 Current Monitoring 1 27 4 5 Gurrent Plus Monito dss yy bad ds Poe BAERS AG BEES paa 28 4 6 Liebert LDMF Optional rras 000 rE E ER eee RR eh 29 5 0 MAINTENANCE HERE ERA BB Bee Ros ade e Sie Sela 30 5 1 cp 30 5 2 Inspection Cleaning ou l ee 30 5 991 Inspection Schedule e Set e Ere ded Ma ede ee Eo pk Ed 30 Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figur
2. For Business Critical Continuity Liebert RDC Remote Distribution Cabinet User Manual A gt EMERSON Network Power TABLE OF CONTENTS IMPORTANT SAFETY INSTRUCTIONS eee eee eee eee ees 1 SAVE THESE INSTRUCTIONS 00 0 cece ees 1 1 0 INSTALLATION cov oa doa bod ong tee aa abe Yavin Sete ls a a Iu RES Pata cath 2 1 1 Unpacking and Preliminary Inspection 2 1 2 Handling Considerations 0 y wala kana shu eee es 2 1 3 Unit Preparation eee eck IE PERS CEN SW erg OS PARE a ee AS 5 1 4 Location Considerations OT TR a ua ts ed au eee es 5 1 5 Position the Liebert RDC for 6 1 6 Power Met edet vo Utente Stet hee 6 1 6 1 Input Power Connections 6 1 6 2 Junction Box Installation gus upa e a i a A a AE a a a ai W hr 16 1 6 3 Conduit Box Installation Z 2 e er a a a E EAE EEE Yan aE RA 19 1 7 Output Power Connections u y sg has EE RR e e e s 20 1 7 1 Replacing a CT in the CT 21 1 8 Liebert LDME Communication o co cec PL EE EE ET 22 1 8 1 Setup Port 22 1 8 2 Liebert SiteScan Web Monitoring
3. 400mm NOTE 1 MATERIAL TO COPPER RDC12021 2 BUSBAR APPROX 0 25 6 4mm THICK Rev 2 13 Installation Figure 12 Liebert LDMF location details with Square D panelboards SEE DETAILA DETAILA LDMF Setup Port DB9 Connector Location DETAIL B See Figure 21 for connection details DETAIL C SEE DETAIL B SEE DETAIL C RDC15039 FRONT AND REAR VIEW Rev 0 Figure 13 Liebert LDMF location details with GE panelboards DETAILA See Figure 21 for connection details SEE DETAILA SIDE VIEW TWO LDMFs SHOWN RDC15040 Rev 0 14 Installation Figure 14 Liebert LDMF Liebert SiteScan and Liebert IntelliSlot location and connection details ETHERNET NETWORK RJ 45 CONNECTOR 10 100 BASE T ETHERNET PORT E1 LIEBERT INTELLISLOTS XNET XNET Xnet GND DETAIL A ETHERNET AND BACNET CONNECTIONS TERMINAL WIRE RANGE 18 22 AWG FRONT VIEW SEE DETAIL A LIEBERT SITESCAN INTERFACE RDC15042 OPTIONAL Rev 0 Figure 15 Liebert LDMF adapter board location details Liebert PM4 Adapter Board See Figure 22 for connection details SEE DETAIL A DETAIL NOTES 1 UNIT IS SYMMETRICAL FRONT TO BACK ISOMETRIC VIEW RDC15041 FRONT VIEW WITH FRONT DOOR OPEN Rev 0 15 Installation
4. Installation Figure 20 Installation of conduit box VENTED TOP DISTRIBUTION PANELBOARD ACCENTS LIFT OFF 0 34 TYP 8 7mm OPP HOLE SIDE KICK PLATE 0 34 DIA TYP 8 7mm OPP HOLE SIDE ISOMETRIC VIEW BOTTOM ISOMETRIC VIEW RDC12012 17 Output Power Connections Output panelboards with ground and neutral provisions are provided inside the unit for connecting load s as required See Figures 4 5 and 6 Flexible output distribution cables are use in data processing areas under a raised floor Cable lengths and layout should be well planned Cable routes should follow aisles between equipment This will facilitate access to cables for installation routine inspection and future changes Determine the required cable length by measuring the distance to the load equipment following right angle paths rather than diagonally or directly Always measure to the extreme far side of the equipment with respect to the unit to insure adequate cable length Prevent restriction of airflow under the raised floor by running the flexible conduits flat on the sub floor in parallel paths Initial system output loading should be between 50 and 75 of rated capacity This allows the addition of future loads without immediately investing in another Liebert RDC Balancing of loads is good design practice on any 3 phase system A WARNING Verify that incoming line voltage circuits are de energized an
5. 1 6 2 Junction Box Installation A main input power junction box is standard on the four input Liebert RDC and available as option on the two input cabinet to simplify customer connections The junction box if used is shipped with the unit Its dimensions WxDxH are 20 3 4 x 45 5 16 x 14 5 16 625 mm x 1150 mm x 868 To install the junction box 1 Remove two 24 x 24 floor tiles and the raised floor cross member between them Position standoffs field supplied and installed by others if required and secure to the floor 2 Remove the junction box cover and carefully lower the junction box onto the standoffs 3 Adjusting the standoffs so the top of the junction box fits up against the bottom of the raised floor cross members 4 Reinstall the raised floor cross member See Figure 17 Junction Box Input Power Connections Install the input feeder cables and attach to the power blocks per the junction box outline drawing supplied with the unit See Figure 16 Be sure to secure the junction box prior to pulling the cables Reinstall the floor tile over the power blocks prior to installing the Liebert RDC The junction box cover can be left off at this point since it will be necessary to remove the floor tile after the Liebert RDC is installed The factory installed input cables located inside the unit must be connected to the junction box after the Liebert RDC is installed To make the junction box input power connections 1 Pl
6. Installation Figure2 Typical tie breaker cabinet and floor planning dimension data 0 344 8 74mm CLEARANCE HOLE 14 856mm e 5 127mm RECOMMENDED CLEARANCE OF 18 457mm ABOVE UNIT 21 FOR COOLING AIR FLOW 24 533mm 610mm 120 DOOR SWING RECOMMENDED A LAM E a MINIMUM CLEARANCE OF 36 914mm AT FRONT REAR AND ONE SIDE FOR SERVICE ACCESS 78 1981mm 8 24 610mm FRONT amp REAR VIEW NOTES 1 WEIGHT 750 LB 340kg 2 HEAT OUTPUT 3 412 BTU HR 1kW d T 24 1 5 38mm 610 FOOTPRINT REMOVE ONE 24 X 24 FLOOR TILE FOR INPUT OUTPUT CABLE ACCESS PROJECTION OF BEZELS FRONT amp REAR 0 63 16mm 28 6 726mm OVERALL DIMENSION TIE BREAKER WINDOW am 610mm RIGHT SIDE VIEW RDC11016 Rev 0 Installation 1 3 1 4 Unit Preparation The Liebert RDC may be easily removed from the shipping pallet and installed by customer personnel typical procedure is as follows Set the shipping pallet in a level area where there is enough room lift the Liebert RDC off the pallet onto the raised floor Cut the shipping bands A WARNING The shipping bands may be under tension Use appropriate eye face and hand protection to safeguard against injury from band backlash Remove front and rear doors along with the front and rear kick plate from the unit Remove the bolts holding the unit to the shippin
7. Monitoring The Liebert RDC has a Current Plus Monitoring CPM feature that monitors the current and voltage of the panelboard main circuit breaker The CPM includes a monochrome Liquid Crystal Display LCD with oval bezel that includes power and alarm LEDs audible alarm and silence push button The CPM displays the power parameters and alarms listed below for each panelboard main The display is mounted on the front and rear doors The display and switches are accessible without opening the door The CPM displays circuit identification the status of each breaker and the following parameters Voltage Line to Line Line to Neutral Neutral Current Ground Current Power Factor Voltage Total Harmonic Distortion THD Current Total Harmonic Distortion THD Crest Factor The CPM annunciates alarm messages for the following conditions Alarm thresholds for monitored parameters are adjustable through the service port to match site requirements The alarms and their factory setpoints for the alarms are Alarm Default Setpoint Overvoltage A line to line voltage exceeds 6 of nominal Undervoltage A line to line or line to neutral voltage falls below 1396 of nominal Neutral Overcurrent Current exceeds 95 of breaker amps Ground Overcurrent Current exceeds 5 amps Phase Overcurrent Warning Current exceeds 75 of breaker amps Phase Overcurrent Current exceeds 80 of breaker amps Summary Alarm Summary Alarm detect
8. UNIT BUSBAR 84 1 2 CONDUIT KNOCKOUTS PER 2 SIDES 14 15 359mm J OO000000 OOOOOOOO OOOOOOOO OOOOOOOO OOOOOOOO OOOOOOOO OOOOOOOO OOOOOOOO OOOOOOOO OOOOOOOCO OOOOOOOQ RIGHT SIDE VIEW RDC12030 Rev 3 VENTED TOP PLATE BUSBAR ISOMETRIC VIEW RDC12006 Rev 2 17 Installation Figure 18 Dual input junction box with tie breakers FACTORY SUPPLIED FIELD WIRED TO TERMINAL BLOCKS ON UNIT CUSTOMER OF MAIN INPUT POWER WIRING TERMINAL 3 PHASE 4 WIRE DETAILS PLUS GND TYP BUS D ISOMETRIC VIEW WITH CONDUIT NEUTRAL PLATES REMOVED BUS 84 1 2 CONDUIT KNOCKOUTS PER 2 SIDES AC INPUT 009000 20 5 5211 ES 14 15 TOP VIEW 359 E 28 d RIGHT SIDE VIEW NOTE RDC12031 TERMINAL BLOCK DUAL STUD FOR 500 KCMIL CONNECTOR Rev 4 18 Installation 1 6 3 Conduit Box Installation The conduit box mounts under the raised floor as an option to simplify customer connections The conduit box is shipped with the unit The conduit box dimensions Wx Dx are 21 5 8 x 21 5 8 x 11 1 2 548mm x 548mm x 292mm install the conduit box 1 Remove one 24 x 24 floor tile 2 Remove the front and rear doors and the right side panel 3 Remove the panelboard accent panels and the front and rear k
9. monitoring emerson com 800 222 5877 Outside North America 00800 1155 4499 Single Phase UPS amp 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 9719 111 Fax 39 049 5841 257 Asia 29 F The Orient Square Building F Ortigas Jr Road Ortigas Center Pasig City 1605 Philippines 63 2 687 6615 Fax 63 2 730 9572 EmersonNetworkPower com AC Power Embedded Computing Outside Plant Racks amp Integrated Cabinets Connectivity Embedded Power Power Switching amp Controls Services DC Power Infrastructure Management amp Monitoring Precision Cooling Surge Protection Emerson Business Critical Continuity Emerson Network Power and the Emerson Network Power logo are trademarks of Emerson Electric Co or one of its affiliated companies 2010 Emerson Electric Co
10. AL cides THK Uses CONFIGURATION SOFTWARE AND MODBUS Da epes eg wo REGISTRY DOWNLOADED THE TH FOLLOWING WEB ADDRESS HTTP IWWW LIEBERT COM SERVICESUPPORT L PAGESISERVICESUPPORT ASPX X SOFTWA RE_DOWNLOADS zm Rev3 SES Also refer to Figure 12 NOTE The images above are intended for illustration only The location of the external port may vary NOTE Before making any changes to an existing configuration or uploading a file to another Liebert LDMF system make a note of the Software Address When overwriting an existing configuration file due to changes modifications or breaker addition deletion the Software Address will revert to the value of the file that is loaded This can lead to incorrect Software Addresses causing Modbus communication errors ADA 22 Installation 1 8 2 1 8 3 Liebert SiteScan Web Monitoring Interface The optional Monitoring interface module allows the Liebert LDMF to communicate with Liebert SiteScan Web 3 0 or greater Includes software and graphics which supports up to 168 branch breakers using an Ethernet connection The monitoring interface is on the back of the Liebert RDC front door with connections for RJ 45 Ethernet and BACnet See Figure 14 for location and wiring details Summary Alarm The Liebert LDMF provides Form C 1 NO and 1 NC summary alarm contacts for remote alarm status The summary alarm contacts change state upo
11. AY CONTAINS 168 HOLES FOR 1 2 CONDUIT 7 B 22 2mm HOLES FRONT 2 ROWS 50 HULES CAN BE FIELD PUNCHED FOR 3 4 CONDUIT NOTE SPACE IS ALSO PROVIDED FOR TWO 2 1 2 INPUT CONDUITS FRONT AND REAR VIEW THROUGH BOTTOM WITH DOOR AND FANEL REMOVED NEUTRAL BUSBAR See Figure 10 for details GROUND BUSBAR See Figure 11 for details CONDUIT ENTRY EXIT SIDE VIEW WITH PANEL REMOVED RDC15004 Rev 3 Installation Figure5 Electrical connection location for two inputs alele DETAIL A A MAIN INPUT TERMINAL BLOCKS Units with optional junction box have factory supplied and wired cabling Cables must be field connected to the junction box See Figure 18 for details MAIN INPUT CIRCUIT BREAKER MAIN INPUT CIRCUIT BREAKER 42 POLE DISTRIBUTION PANELBOARDS 4 TYP NEUTRAL CONNECTIONS DISTRIBUTION CABLES NEUTRALS S CONNECTED DISTRIBUTION PANELDOARD NEUTRAL BUS BAR GROUND CONNECTIONS DISTRIBUTION CABLE GROUND S CONNECTED TO DISTRIBUTION PANELBOARD GROUND BUS BAR DISTRIBUTION CABLE CONDUIT PLATE CABLE TRAY CONTAINS 168 HOLES FOR 1 2 CONDUIT 7 8 22 2mm HOLES FRONT 2 ROWS 50 HOLES CAN BE FIELD PUNCHED FOR 3 4 CONDUIT NOTE SPACE IS ALSO PROVIDED FOR TWO 2 1 2 INPUT CONDUITS NOT PROVIDED WHEN INPUT J BOX CONDUIT ENTRY EXIT IS SUPPLIED THROUGH BOTTOM FRONT AND REAR VIEW SIDE VIEW WITH DOOR AND PANEL REMOVED WITH
12. LES CAN BE FIELD PUNCHED FOR 3 4 CONDUIT NOTE 2 1 2 INPUT CONDUITS NOT PROVIDED WHEN INPUT J BOX IS SUPPLIED alle DETAIL GROUND BUSBAR See Figure 11 for details 2 NEUTRAL BUSBARS See Figure 10 for details MAIN INPUT TERMINAL BLOCKS Units with optional junction box have factory supplied and wired cabling Cables must be field connected to the junction box See Figure 18 for details DISTRIBUTION CABLES GROUND S CONNECTED TO DISTRIBUTION PANELBOARD GROUND BUS BAR NEUTRAL CONNECTIONS DISTRIBUTION CABLES NEUTRALS CONNECTED TO DISTRIBUTION PANELBOARD NEUTRAL BUS BAR GROUND BUSBAR See Figure 11 for details 2 NEUTRAL BUSBARS See Figure 10 for details SIDE VIEW WITH PANEL REMOVED RDC15044 Rev 0 jo Vy i A r i SIDE VIEW PANEL REMOVED RDC15033 Rev 0 11 Installation Figure9 Electrical field connections four inputs with Liebert LDMF Liebert RDC with Square D Panelboards amp Liebert LDMF MAIN INPUT IE NER MAIN INPUT CIRCUIT BREAKER CIRCUIT BREAKER _ __ M Wi LDM CURRENT SENSORS 42 POLE DISTRIBUTION PANELBOARDS 4 TYP Ll d NEUTRAL CONNECTIONS g DISTRIBUTION CABLES NEUTRAL
13. Liebert LDMF user manual SL 20200 available at the Liebert Web site www liebert com The Liebert LDMF has an optional local display that allows users to view monitoring information for the panelboard main circuit breaker as well as each individual branch circuit breaker Alarm data can be viewed from the local display for up to date breaker status Figure 23 Liebert LDMF optional local display EMERSON Network Power F1 F2 F3 F4 HELP B M 29 Maintenance 5 0 MAINTENANCE 51 Repair Even the most reliable equipment may fail Liebert Services is at your service to assure fast repair of your unit and minimum down time of your installation A Only qualified service personnel should perform maintenance on the Liebert RDC Standard electrical troubleshooting procedures should be used to isolate problems in the unit If there are questions don t hesitate to contact Liebert Services Repair or replacement of standard items such as circuit breakers and fuses can be either handled by qualified electricians or referred to Liebert Services Repairs related to the monitoring system should be referred to Liebert Services To contact Liebert Services for information or repair service in the USA call 1 800 543 2378 52 Inspection amp Cleaning Air circulation through the cabinet may cause dust to accumulate on internal components Cleaning should be done as necessary during electrical inspections Annual general s
14. ONT 2 ROWS 50 HOLES CAN FIELD PUNCHED FOR 3 4 CONDUIT NOTE 2 1 2 INPUT GROUND CONDUITS NOT PROVIDED WHEN BUSBAR INPUT J BOX IS SUPPLIED See Figure 11 CONDUIT ENTRY EXIT i THROUGH BOTTOM for details FRONT AND REAR VIEW DOOR AND PANEL REMOVED Liebert RDC with GE Panelboards amp Liebert LDMF MAIN we MAIN INPUT 1 625 41 3mm CIRCUIT BREAKER CIRCUIT BREAKER 1 75 44 4mm LDM CURRENT 438 11 11mm SENSORS A C B DETAIL A A CINPUT CABLE CONNECTIONS 42 POLE DISTRIBUTION PANELBOARDS 4 TYP NEUTRAL BUSBAR See Figure 10 for details GROUND CONNECTIONS DISTRIBUTION CABLE CONDUIT PLATE DISTRIBUTION CABLES GROUND S CABLE TRAY CONTAINS 168 HOLES CONNECTED TO DISTRIBUTION FOR 1 2 CONDUIT 7 8 22 2mm PANELBOARD CROUND BUS BAR HOLES FRONT 2 ROWS 50 HOLES CAN BE FIELD PUNCHED FOR 3 4 CONDUIT NOTE 2 1 2 INPUT CONDUITS NOT PROVIDED WHEN GROUND INPUT J BOX IS SUPPLIED BUSBAR NEUTRAL CONNECTIONS DISTRIBUTION CABLES NEUTRAL S See CONNECTED TO DISTRIBUTION Figure 11 CONDUIT ENTRY EXIT PANELBOARD NEUTRAL BUS BAR for details THROUGH BOTTOM FRONT AND REAR VIEW WITH DOOR AND PANEL REMOVED SECTION SEE DETAIL SIDE VIEW WITH PANEL REMOVED RDC15045 Rev 0 SECTION A A SEE DETAIL SIDE VIEW PANEL REMOVED RDC15034 Rev 0 10 Installat
15. PANEL REMOVED RDC15003 Rev 3 Installation Figure6 Electrical connection location for four inputs MAIN INPUT CIRCUIT BREAKER MAIN INPUT 3 CIRCUIT BREAKER i 42 POLE DISTRIBUTION PANELBOARDS 4 TYP NEUTRAL CONNECTIONS DISTRIBUTION CABLES NEUTRALS S CONNECTED TO DISTRIBUTION PANELBOARD NEUTRAL BUS BAR GROUND CONNECTIONS DISTRIBUTION CABLE GROUND S CONNECTED TO DISTRIBUTION PANELBDARD GROUND BUS BAR FRONT AND REAR VIEW WITH DOOR AND PANEL REMOVED NOTE Unit has factory supplied cables wired to each main input breaker Cables must be field connected to the junction box factory supplied See Figure 16 for details SIDE VIEW WITH PANEL REMOVED RDC15001 Rev 3 Installation Figure7 Electrical field connections one input with Liebert LDMF Liebert RDC with Square D Panelboards amp Liebert LDMF MAIN INPUT CIRCUIT BREAKER CIRCUIT BREAKER 1 625 41 3mm 1 75 44 Ba f 438 11 11mm LDM CURRENT OA SENSORS DETAIL lt INPUT CABLE CONNECTIONS 42 POLE DISTRIBUTION PANELBOARDS 4 TYP NEUTRAL BUSBAR DISTRIBUTION CABLES NEUTRAL S SE GROUND CONNECTIONS CONNECTED TO DISTRIBUTION Figure 19 DISTRIBUTION CABLES GROUND S PANELBOARD NEUTRAL BUS BAR CONNECTED TO DISTRIBUTION PANELBOARD GROUND BUS BAR DISTRIBUTION CABLE CONDUIT PLATE CABLE TRAY CONTAINS 168 HOLES FOR 1 2 CONDUIT 7 8 22 2mm LDMF HOLES FR
16. RCUIT THE SECONDARY WINDINGS OF CURRENT TRANSFORMERS FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN PANELBOARD A PANELBOARD B SERIOUS e DR DE LDM13004 DETAILA Rev 0 21 Installation Figure 22 Electrical field connections for Liebert Current Plus and LDMF communication and summary alarm To Liebert SiteScan System Summary Alarm LA ATG N m amp amp amp 8 amp O oiz CUSTOMER ALARMS Notes LDM13011 1 The summary alarm contacts are rated Rev 0 for 0 to 30VAC or VDC 0 5A 10 watts maximum 2 For Liebert SiteScan connection use 22AWG shielded cable maximum distance 1000ft 300m 1 8 Liebert LDMF Communication Connecting locally to the Liebert LDMF Monitoring option requires a female to female F F DB9 null modem cable There will be an external port on the Liebert RDC labeled LDMF SETUP Connect the DB9 null modem cable to a local PC Once connected you may run any of the provided software tools that can be downloaded from the Liebert Web site ww w liebert com see the Liebert LDMF user manual SL 20200 for details on downloading and using the software 1 8 1 LDMF Setup Port Connection The local LDMF Setup port is not intended to be a service terminal or hyperterminal connection It is intended only for use of the Liebert LDMF software tools provided LDMF SETUP LDMF SETUP C THE LOMF DOCUMENTATION TOOLKIT WHICH INCLUDES THE USER S MANU
17. S CONNECTED TO DISTRIBUTION PANELBOARD NEUTRAL BUS BAR GROUND CONNECTIONS M DISTRIBUTION CABLES GROUND S d CONNECTED DISTRIBUTION PANELBOARD GROUND BUS BAR LDMF AND REAR VIEW SIDE VIEW RDC15043 WITH DOOR AND PANEL REMOVED WITH PANEL REMOVED Rev 0 Liebert RDC with GE Panelboards amp Liebert LDMF A BREAKER CIRCUIT BREAKER LOM CURRENT SENSORS 42 POLE DISTRIBUTION PANELBOARDS 4 GROUND CONNECTIONS DISTRIBUTION CABLES GROUND S CONNECTED TO DISTRIBUTION PANELBOARD GROUND BUS BAR NEUTRAL CONNECTIONS DISTRIBUTION CABLES NEUTRAL S CONNECTED TO DISTRIBUTION PANELBOARD NEUTRAL BUS BAR ERONT AND REAR VEW SIDE MEW RDC15032 WTH DOOR AND PANEL REMOVED WITH PANEL REMOVED Rev 0 NOTE Unit has factory supplied cables wired to each main input breaker Cables must be field connected to the junction box factory supplied See Figure 16 for details 12 Installation Figure 10 Outline drawing neutral busbar 0 38 9 5mm DIA TYP 6 PLACES 0 44 11 1mm DIA 8 PLACES 76mm 44 4mm e amp 15 7 400mm 5 5 ISOMETRIC 1 MATERIAL TO BE COPPER RDC12020 VIEW 2 BUSBAR APPROX 0 25 6 4mm THICK Rev 2 Figure 11 Outline drawing ground busbar 0 38 9 5mm DIA 8 PLACES 0 44 11 1 DIA TYP 12 PLACES L 15 7
18. TION NOTE Read this entire manual before installing and operating the system Upon receipt of a Liebert RDC Remote Distribution Cabinet the installer should perform the following steps to ensure a top quality installation 1 1 Unpacking and Preliminary Inspection A top quality installation begins on the receiving dock Inspect the shipping crate s for damage or signs of mishandling before unpacking the unit s Check Shock Watch indicator Open the shipping crates carefully Use care to avoid puncturing the container with sharp objects that would damage the contents Remove the packing and vapor barriers and inspect the equipment for any obvious shipping damage NOTE The units should NOT be loosened from the shipping pallet until after all handling by forklift or pallet jack is completed Complete internal inspection should be performed only after the equipment has been positioned for installation but BEFORE electrical hookup 1 2 Handling Considerations The Liebert RDC 15 bolted to a wooden pallet to allow handling by a forklift pallet jack or similar equipment Check size and weight Refer to the cabinet drawings furnished with the unit for size and weight information Typical cabinet dimensions and weights are shown in Figures 1 and 2 Plan the route The route that the unit will follow to its installation area should be planned to ensure that all passages are large enough to accommodate the unit and that the floors are strong en
19. ace the Liebert RDC on the raised floor in the open area over the junction box with the front door in line with the front of the junction box Remove front and rear doors and both side panels Remove panelboard accent panels and the front and rear kick plates Unroll cables located on the shipment brace at the bottom of the unit Remove and discard the shipping braces Connect cables to power blocks in the junction box Reinstall the junction box cover and floor tile yO co Do Reinstall accents kick plates side panels and doors Junction box connections must be installed in compliance with the NEC and all other applicable codes A WARNING Verify that incoming line voltage power circuits are de energized and locked out before installing cables or making any connections in the junction box 16 Installation Figure 16 Four input junction box 900 o on 00 45 12 1145mm 20 5 521mm VIEW 5 1 TERMINAL BLOCK DUAL STUD FOR 500 KCMIL CONNECTOR 2 CUSTOMER CONNECTIONS ARE MADE TO THE TERMINAL BLOCKS Figure 17 Junction box installation bo c I ISOMETRIC CUSTOMER VIEW CONNECTION TERMINAL OF MAININPUT DETAILS FACTORYSSUBPLED PLATES POWER WIRING TYP FIELD WIREDTO REMOVED 3 PHASE 4 WIRE PLUS GND TERMINAL BLOCKS MAIN GROUND ON
20. company policies that may require changes to the standard equipment operation Normal System Shutdown To perform a normal system shutdown perform an orderly load equipment shutdown according to the load equipment manufacturer s recommended shutdown sequence The load equipment can be turned OFF at each piece of load equipment or at the Liebert RDC panelboards circuit breaker located behind the unit s front and rear doors Turn OFF all unit panelboard main breakers To remove all power from the unit turn OFF the building power to the unit or junction box Normal System Turn ON Make certain all unit circuit breakers are in the OFF position All unit circuit breakers are located behind the front and rear doors Turn ON building power to the unit Turn ON the panelboard main circuit breakers If the circuit breaker has been tripped OFF instead of being turned OFF the circuit breaker handle must be moved to the OFF position before being turned ON Individually turn ON each panelboard circuit breaker following the load equipment manufacturer s startup sequence Current Monitoring Panel The current monitoring panel consists of a four digit high visibility Liquid Crystal Display LCD to monitor three phase and neutral currents for each panelboard Front and rear LCDs are provided with push button switches for selecting currents Liebert PANEL 2 L1 12 e 27 Operating Instructions 4 5 Current Plus
21. d locked out before installing output breakers and cables All output cables and connections must comply with the NEC and all other applicable codes All output cables without receptacles that are hard wired to the load equipment must be equipped with a padlock off accessory for the output circuit breaker The padlock off accessory is used to lock out and tag the circuit breaker while service is performed on the hard wired load equipment in accordance with OSHA safety rules 20 Installation 1 7 4 Replacing CT in the CT Module In the unlikely event a CT in the CT Module should fail up to six replacement CTs may be installed using a split core CT kit available separately from your local Emerson representative 1 2 3 Verify that the branch breaker is Off and power is de energized Route wiring from the transformer through the panel to the control board Connect the CT connector to the proper panel location using the first available connection See Figure 21 for details a For panelboard A use P2 A1 P3 2 P4 b For panelboard B use P5 B1 P6 B2 P7 B3 Ensure all routed wiring 1s properly secured to the panel with tie wraps The top piece of the current transformer CT is removable by pulling away from the center of the transformer Figure 21 Item 2 Place the main body of the current transformer around the cable making sure the CT is installed 1n the direction shown in Figure 21 Item 2 R
22. e 6 Figure 7 Figure 8 Figure 9 Figure 10 Figure 11 Figure 12 Figure 13 Figure 14 Figure 15 Figure 16 Figure 17 Figure 18 Figure 19 Figure 20 Figure 21 Figure 22 Figure 23 FIGURES Typical cabinet and floor planning dimension data 3 Typical tie breaker cabinet and floor planning dimension data 4 Recommended minimum service and ventilation 1 6 Electrical connection location for single input 7 Electrical connection location for two 1 8 Electrical connection location for four inputs 9 Electrical field connections one input with Liebert LDME 10 Electrical field connections two inputs with Liebert 11 Electrical field connections four inputs with Liebert 12 Outline drawing neutralbusbar 13 Outline drawing ground busbar l l s wasu EEE RERI E 18 Liebert LDMF location details with Square D panelboards 14 Liebert LDMF location details with GE panelboards 14 Liebert LDMF Liebert SiteScan and Liebert IntelliSlot location and connection kaa a a Ru
23. e Wd hee ers qae 15 Liebert LDMF adapter board location 15 Four Input junction box ee e ea ee e 17 Junction box installation hh 17 Dual input junction box with tie breakers 18 Conduit box s vues ute eres eee E e MEM Ree a 19 Installation of conduit box usu hh has 20 Electrical field connections for CT Module replacement 5 21 Electrical field connections for Liebert Current Plus and LDMF communication and s mmary alarms odere uit ace ER E RR UR DOR e bg 22 Liebert optional local display 29 IMPORTANT SAFETY INSTRUCTIONS SAVE THESE INSTRUCTIONS NOTE Read this entire manual before installing or operating the system A WARNING The shipping bands may be under tension use appropriate eye face and hand protection to safeguard against injury from band backlash A WARNING Verify that all incoming line voltage power circuits are de energized and locked out before installing cables or making connections in the unit Equipment inspection and startup should be performed only by trained personnel Lethal voltages are present during startup procedures Electrical safety precautions must be followed thr
24. eplace the top piece of the CT to complete securing the CT around the cable Figure 21 Item 3 then use the enclosed tie wraps to secure the CT to the cable A WARNING Do not open circuit the secondary windings of current transformers Failure to follow these instructions may result in serious injury or death Figure 21 Electrical field connections for CT Module replacement CTs BRANCH REPLACEMENT CT 6 PL CONNECTION LOCATION FOR CT MODULE 6 REPLACEMENT CTs lt lt INDICATES PIN 1 CONNECT CT WHITE WIRE TO PIN 1 CONNECT CT BLACK WIRE TO PIN 2 NOTES 1 REMOVE CT FROM THE BOX ROUTE WIRING FROM KR POWER POWER THE TRANSFORMER THROUGH THE PANEL TO THE SOURCE BRANCH SOURCE LDM CONTROL BOARD 2 CONNECT THE CT CONNECTOR TO THE PROPER PANEL LOCATION USING THE FIRST AVAILABLE CONNECTION A FOR PANELBOARD A USE 2 1 P3 A2 PA A3 B FOR PANELBOARD B USE 5 1 P6 B2 P7 B3 ENSURE ALL ROUTED WIRING IS PROPERLY SECURED TO THE PANEL WITH TIE WRAPS 3 THE TOP PIECE OF THE CURRENT TRANSFORMER IS REMOVABLE BY PULLING AWAY FROM THE CENTER OF THE TRANSFORMER ITEM 2 4 PLACE THE MAIN BODY OF THE CURRENT TRANSFORMER AROUND THE CABLE MAKING SURE THE CT IS INSTALLED IN THE DIRECTION SHOWN SEE ITEM 2 5 REPLACE THE TOP PIECE OF THE CT TO COMPLETE SECURING THE CT AROUND THE CABLE SEE ITEM 3 USE THE ENCLOSED TIE WRAPS TO SECURE THE CT TO THE CABLE WARNING DO NOT OPEN CI
25. g pallet Located in each of the four bottom corners Lift the unit from the pallet and place it on the floor A CAUTION Before maneuvering the unit into its final position read and follow all advisories in 1 4 Location Considerations Location Considerations The Liebert RDC should be located within the data center and or close to the load s which it is supplying Equipment Location should employ the shortest output distribution cable runs consistent with logical equipment arrangement and allowances for future additions Operating Environment Ambient temperatures of 32 F to 104 F 0 C to 40 with a relative humidity of 096 to 9596 non condensing Bottom Clearance is required for exit of cables conduits junction box and or for cooling airflow This clearance is automatically provided by a raised floor with a minimum height of 15 381mm Recommended Minimum Service Clearances are shown in Figure 3 The indicated clearances at the front rear and one side of the unit are required for service access by the National Electrical Code NEC Clearance above the unit 15 required for cooling airflow exhaust As with all electrical devices the Liebert RDC produces heat under normal operation The heat output is 3412 BTU Hr 1 kWH This heat output should be included when calculating the environmental conditions of the room Installation 1 5 Position the Liebert RDC for Installation Remove one 24 x 24 f
26. ick plates 4 Position the Liebert RDC over the opening where the tile was removed the unit will rest on top of the raised floor cross members on all four sides 5 Afterthe Liebert RDC has been installed on the raised floor remove the three conduit trays at the bottom of the unit These are not needed when the conduit box is used and can be discarded Do NOT remove the conduit trays until the Liebert RDC has been installed on the raised floor 6 Remove floor tiles as needed for access but do not remove floor tile cross members 7 Placethe conduit box under the raised floor and use four 1 4 diameter bolts with flat washers lock washers one internal tooth washer for grounding and nuts hardware factory supplied to attach it to the bottom of the Liebert RDC frame see Figure 20 The internal tooth washer must be in contact with painted surface of base Conduit Box Input Power Connections Attach the input feeder conduits to the sides of the conduit box Space is provided for one feeder per side Install cables and attach to the bus bar or power blocks located in the unit Reinstall the floor tile accents doors kick plates and side A WARNING Verify that incoming line voltage power circuits are de energized and locked out before installing cables or making any connections in the junction box Figure 19 Conduit box Sized for 42 half inch conduits typ each side Pilot holes for input conduit typ 4 places 19
27. ion Figure8 Electrical field connections two inputs with Liebert LDMF Liebert RDC with Square D Panelboards amp Liebert LDMF MAIN INPUT CIRCUIT BREAKER mE 1 42 POLE DISTRIBUTION PANELBOARDS 4 TYP GROUND CONNECTIONS DISTRIBUTION CABLES GROUND S CONNECTED TO DISTRIBUTION M H PANELBOARD GROUND BUS BAR L d LDMF CONDUIT ENTRY EXIT THROUGH BOTTOM FRONT AND REAR VIEW WITH DOOR AND PANEL REMOVED Liebert RDC with GE Panelboards amp Liebert LDMF MAIN INPUT CIRCUIT BREAKER MI 42 POLE DISTRIBUTION PANELBOARDS 4 TYP CABLE TRAY CONTAINS 168 HOLES FOR 1 2 CONDUIT 7 8 22 2mm HOLES FRONT 2 ROWS S0 HOLES CAN BE FIELD PUNCHED FOR 3 4 CONDUIT NOTE 2 1 2 INPUT CONDUITS NOT PROVIDED WHEN INPUT J BOX IS SUPPLIED CONDUIT ENTRY EXIT THROUGH BOTTOM FRONT AND REAR MEW WTH DOOR AND PANEL REMOVED MAIN INPUT CIRCUIT BREAKER MAIN INPUT CIRCUIT BREAKER DETAIL MAIN INPUT TERMINAL BLOCKS Units with optional junction box have factory supplied and wired cabling Cables must be field connected to the junction box See Figure 18 for details LDM CURRENT SENSORS NEUTRAL CONNECTIONS DISTRIBUTION CABLES NEUTRAL S CONNECTED TO DISTRIBUTION PANELBOARD NEUTRAL BUS BAR RIBUTION CA NDUIT PLAT CABLE TRAY CONTAINS 168 HOLES FOR 1 2 CONDUIT 7 8 22 2mm HOLES FRONT 2 ROWS 50 HO
28. loor tile Remove the front and rear doors and the right side panel Remove the panelboard accent panels and the front rear kick plates Position the Liebert RDC over the opening the unit will rest on top of the raised floor cross members on all four sides Figure 3 Recommended minimum service and ventilation clearances 1 6 1 6 1 18 460 mm minimum clearance above unit i cooling air flow Service access is required at the front rear and right side Service access clearance dimensions 36 914 mm for units up to 150V to ground 42 1067 mm for units over 150V to ground 15 381mm minimum clearance below for cables and junction box Power Wiring Power wiring should be installed by licensed electricians All power wiring must comply with the NEC and applicable local codes Input Power Connections If the unit is furnished with a junction box input power connections are made as detailed in 1 6 2 Junction Box Installation If the unit is furnished with a conduit box input power connections are made as detailed in 1 6 3 Conduit Box Installation If a junction box is not furnished remove front and rear doors and front and rear kick plates Remove center conduit tray and punch to match number and size of input conduit s Replace conduit tray and attach input feeder Input power cables should be connected to the input bus bars or blocks located inside the unit See Figures 4 5 and 6 and the electrical field c
29. n enabling Business Critical Continuity from grid to chip for telecommunication networks data centers health care and industrial facilities Emerson Network Power provides innovative solutions and expertise in areas including AC and DC power and precision cooling systems embedded computing and power integrated racks and enclosures power switching and controls infrastructure management and connectivity All solutions are supported globally by local Emerson Network Power service technicians Liebert AC power precision cooling and monitoring products and services from Emerson Network Power deliver Efficiency Without Compromise by helping customers optimize their data center infrastructure to reduce costs and deliver high availability 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 2010 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 51 30750 REV3 8 12 Emerson Network Power The global leader in enabling Business Critical Continuity Technical Support Service Web Site www liebert com Monitoring liebert
30. n occurrence of any alarm including warnings and reset when alarm is cleared The summary alarm connection is on the adapter board see Figure 15 Detail A and Figure 22 marked Summary Alarm NC NO and COMM The contacts are rated at 24VAC 1A 23 Equipment Inspection and Startup 2 0 EQUIPMENT INSPECTION AND STARTUP 2 1 2 2 Internal Inspection A detailed internal inspection should be performed after the unit is in place and before it is energized to ensure trouble free startup The same internal inspection should be carried out when performing preventive maintenance A WARNING Verify that all incoming power circuits are de energized and locked out before performing the internal inspection Gain access to the internal components of the Liebert RDC by removing the right hand exterior panel Visually inspect the wiring and components to be sure they are not damaged Check all power connections for tightness Torque requirements of all electrical connections is 80 Ib in Follow the procedures described in 3 0 Inspection and Startup Checklist when performing a detailed inspection Startup Follow the detailed step by step checklist in 3 0 Inspection and Startup Checklist when installing and starting up the Liebert RDC A qualified electrician should be employed to perform the equipment inspection and startup System startup may be arranged by calling your local Emerson Network Power sales representati
31. onnection drawing supplied with the unit for details A WARNING Verify that all incoming line voltage power circuits are de energized and locked out before installing cables or making connections whether in the junction box or in the unit Installation minimize disturbances caused by other loads in the building the 3 phase power input to the unit should be supplied directly from a dedicated power source The input feeder circuit should be sized in accordance with the NEC and any local building codes to assure the feeder s ability to safely carry the system s full load current including losses Input feeder conductors should be sized for no more than 2 voltage drop If operation at undervoltage conditions for extended periods of time is desired the input feeders must be oversized The main input feeder must consist of 3 phase conductors one neutral and one safety ground 1 625 4 3mm 438 D 11mm i A A Input Cable Connections conductor 4W Figure 4 Electrical connection location for single input MAIN INPUT CIRCUIT BREAKER OB 1 75 44 4mm MAIN INPUT CIRCUIT BREAKER 42 POLE DISTRIBUTION PANELBGARDS 4 NEUTRAL CONNECTIONS DISTRIBUTION CABLES NEUTRALS S GONNECTED DISTRIBUTION PANELBOARD NEUTRAL BUS BAR GROUND CONNECTIONS DISTRIBUTION CABLE GROUND S CONNECTED TO DISTRIBUTION PANELABCARD GROUND BUS BAR DISTRIBUTION CABLE CONDUIT PLATE CABLE TR
32. ough to support the weight Check all doorways hallways elevators ramps and other portions of the route to determine if there are any obstructions and to ensure each is large enough and strong enough to allow easy passage Move with care The Liebert RDC should be moved to the installation area on the wooden pallet using forklift or pallet jack If any damage as a result of shipping is observed Immediately file a damage claim with the shipping agency and forward a copy to Emerson Network Power 1050 Dearborn Drive P O Box 29186 Columbus Ohio 43229 USA Installation Figure1 Typical cabinet and floor planning dimension data CLEARANCE HOLE 0 344 8 74mm 14 5 356mm 127mm y 21 24 23 7 533mm 610mm 120 DOOR SWING opam l RECOMMENDED RECOMMENDED CLEARANCE Dee MINIMUM CLEARANCE 151 18 457mm 5555555 36 914 du 24 ABOVE UNIT IJ Ge aS FRONT REAR AND 38mm 610mm FOR COOLING E RIGHT SIDE FOR AIRFLOW RERI h SERVICE ACCESS FOOTPRINT REMOVE ONE 24 X 24 gt FLOOR TILE FOR INPUT OUTPUT 1 120 DOOR SWING CABLE ACCESS 602mm PROJECTION OF BEZELS TOP VIEW FRONT amp REAR 0 63 16mm 28 6 726mm OVERALL 25 5 DIMENSION 648mm 78 1981mm N 8 24 _ 610mm 610mm FRONT amp REAR VIEW RIGHT SIDE VIEW NOTES 1 WEIGHT 750 LB 340kg RDC11014 2 HEAT OUTPUT 3 412 BTU HR 1kW Rev 0
33. oughout inspection and startup Only qualified service personnel should perform maintenance on the remote distribution cabinet All voltage sources to the unit must be disconnected before inspecting or cleaning within the cabinet Lethal voltages exist within the equipment during operation observe all warnings and cautions in this manual Failure to comply may result in serious injury or death Obtain qualified service for this equipment as instructed NOTE The unit should NOT be loosened from the shipping pallet until after all handling by forklift or pallet jack is completed All power wiring should be installed by licensed electricians and must comply with the NEC and applicable codes ELECTROMAGNETIC COMPATIBILITY The Liebert RDC complies with the limits for a Class A digital device pursuant to Part 15 of FCC rules Operation is subject to the following conditions This device may not cause harmful interference This device must accept any interference received including interference that may cause undesired operation Operating this device in a residential area is likely to cause harmful interference that users must correct at their own expense The Liebert RDC complies with the requirements of EMC Directive 2004 108 EC and the published technical standards Continued compliance requires installation in accordance with these instructions and use of accessories approved by Emerson Installation 1 0 INSTALLA
34. s and annunciates upon occurrence of any alarm Summary Alarm Contacts The CPM has Form C 1 NO and 1 NC summary alarm contacts for remote alarm status The contacts are rated at 24VAC 1A The contacts change state when any alarm or warning occurs and reset when the alarm is cleared facilitate troubleshooting all alarms are stored in non volatile memory to protect against erasure by a power outage Alarms must be manually reset after alarm conditions are corrected An event log saves details of up to 128 alarms using a first in first out FIFO storage method Communication CPM is supplied with three Liebert IntelliSlot ports Three Liebert IntelliSlot cards can be added for customer connection to a Building Management System BMS CPM can communicate to a Liebert SiteScan system using RS 485 connection on the adapter board See Figure 22 for connection details 28 Operating Instructions 4 6 Liebert LDMF Optional If the Liebert RDC is equipped with the optional Liebert LDMF the monitoring unit is On whenever power is supplied to the unit The Liebert LDMF is factory configured for 1 pole 20A branch breakers Alarms alarm setpoints circuit breaker names and circuit breaker ratings are all field adjustable through the DB9 connector LDMF SETUP port next to the panelboard main circuit breaker For more information refer to 1 8 Liebert LDMF Communication for communication options and connections and to the
35. s to circuit breakers for the following startup procedure 25 Inspection and Startup Checklist 3 2 3 3 Startup WARNING Startup procedures should be performed only by qualified personnel Hazardous voltages present in the equipment throughout the majority of the startup procedure Use proper safety equipment Proceed with caution 1 Make certain that all circuit breakers are in the OFF position and that power to the unit is locked out NOTE Steps 2 through 6 apply to the Input Junction Box If this installation is not provided with an Input Junction Box proceed directly to Step 7 2 Remove the cover of the Input Junction Box Verify proper input power connections to unit including equipment grounding conductor 3 Turn ON the building power to the junction box Check the phase rotation at the junction box Phase rotation should be A B C as indicated 4 Check and record the input voltages at the junction box Input 1 Input 2 Input 3 Input 4 Volts phase A to phase B Volts phase B to phase C Volts phase C to phase A Turn OFF and lock out the building power to the input junction box Replace the junction box cover 5 6 7 Verify proper input power connections to unit including equipment grounding conductor 8 Turn ON the building input power to the unit 9 Check the phase rotation at the panelboard main breakers Phase rotation should be A B C left to righ
36. t ___ 10 Check and record the input voltage at each of the panelboard main breakers Measured voltages should correspond to the unit s nameplate input voltage Panelboard 1 Panelboard 2 Panelboard 3 Panelboard 4 Volts phase A to phase B Volts phase B to phase C Volts phase C to phase A If output voltage is incorrect check for wiring errors or incorrect input voltage Contact Liebert Services at 1 800 543 2378 in the USA or the local factory representative for assistance ___ 11 Turn ON the panelboard main breakers Monitoring System Check Out If the unit is equipped with a Current Monitoring Panel 1 Turn the unit ON 2 Ensure that the LCD display is on The Monitor Panel displays output and neutral currents for each panelboard load must be applied to get an accurate reading 26 Operating Instructions 4 0 OPERATING INSTRUCTIONS 4 1 4 2 4 3 4 4 Startup Procedures Before the unit is placed in service after initial installation after equipment relocation or after equipment has been de energized for an extended period of time perform equipment inspection and startup procedures as detailed in 2 0 Equipment Inspection and Startup and in 3 0 Inspection and Startup Checklist After initial system startup the following guidelines can be used for standard equipment operation These guidelines should be reviewed for any special equipment modifications special site considerations or
37. ve or Emerson Network Power Liebert Services In the USA call 1 800 543 2378 A copy of the appropriate checklist furnished with the equipment must be completed signed dated and returned to Emerson Network Power Warranty coverage of the equipment is not effective unless the Checklist is received by the factory A WARNING Equipment inspection and startup should be performed only by trained personnel Hazardous voltages are present during startup procedures Electrical safety precautions must be followed throughout inspection and startup 24 Inspection and Startup Checklist 3 0 INSPECTION AND STARTUP CHECKLIST Unit Serial Number Unit Model Number Date 3 1 Inspection A WARNING equipment inspection procedures are to be performed with power to the unit turned off and locked out Exterior Inspection 1 Confirm that the exterior of unit is undamaged ___ 2 Confirm that service and ventilation clearances are adequate See Figure 3 Interior Inspection 1 Remove accessible exterior panel Inspect all wire and conductor insulation for damage Check all breaker connections for tightness Retorque if necessary Check all terminal block connections for tightness Retorque if necessary 2 3 4 5 Remove any foreign objects from the components or the interior area of the unit 6 Check that the intake and exhaust air screens are clean and free of obstructions 7 Replace side panel leaving acces
38. ystem inspections cleaning and operation checks are recommended to ensure system performance and long service life A Only qualified service personnel should perform maintenance on the Liebert RDC All voltage sources to the unit must be disconnected before inspecting or cleaning within the cabinet 5 2 1 Inspection Schedule t is difficult to establish a schedule for periodic cleaning because conditions vary from site to site Inspections after the first 24 hours after 30 days and after 6 months of operation should help determine a pattern for the inspection schedule Electrical connections and component mountings should be inspected after the first 24 hours after 30 days and after 6 months of operation Inspections should be conducted annually thereafter Ventilation openings and grilles should be inspected and cleaned every 6 months to one year A complete inspection and operational checkout should be performed annually This is best done by performing the inspection and startup procedure as detailed in 3 0 Inspection and Startup Checklist Liebert Services offers a complete range of preventive maintenance services These include thorough equipment performance checks and calibration of electronics Contact Liebert Services in the USA 1 800 543 2378 for details 30 Ensuring The High Availability Of Mission Critical Data And Applications Emerson Network Power a business of Emerson NYSE EMR is the global leader i

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