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Liebert DCR Installation Manual

1. 10 4 4 Set the Liebert Challenger 3000 on the Base Plenum Challenger s 12 4 5 Set the DCR Control Panel and Fire Suppression System on the Base Plenum 14 4 6 Install the DCR Racks on the Base Plenum 16 4 7 Mounting the Top Plenum Challenger 18 4 8 Mounting DCR Top Plenum Rack o ooooooooooooooo ooo D usa 19 4 9 Installinse and Wirin Sensors da ai ooo SARS ee AS RUE PS HE Ps 20 4 9 1 Install DCR Return Temperature Thermostat and the L5 20 Receptacle for the A II O ER 21 4 9 2 Connecting the Smoke Detector rs 22 4 9 3 Install Supply Air Temperature Sensor 22 AOA dTustall 2T SensofScs ana la deis A Aa Ee be ERR A 24 4 10 Insert and Adjust Air Flow Adjustment Dampers 25 4 11 Install Backup Fan Assemblhes 25 ANY JATVentlation Manasenmetibs ics viet a qeeERST ESRB iodo dina S REG EAS 26 412 l Ventilation Requirements asia a io ml RR dio E XO a kaa ba Rt orate 26 4 13 Install a Second Liebert Challenger 9000 21 5 0 POWER CONNECTIONS vaciar adds irradia 29 5 1 Power Connections to Liebert Challenger BOUU vues deren EIER A 29 0 2 5 3 6 0 6 1 6 2 6 3 6 4 6 5 7 0 1 1 1 2 7 3 8 0 8 1 8 2 9 0 9 1 9 2
2. 50 Liebert DCR part dimensions and weights 51 DECR Deld wirine lst uu AS ei dux es Be d eda ha ace wa ead A aaa Uhu 52 Important Safety Instructions IMPORTANT SAFETY INSTRUCTIONS SAVE THESE INSTRUCTIONS This manual contains important Instructions that must be closely followed during installation of this unit to maintain compliance with agency listings Read all safety and operating Instructions before attempting to operate the Liebert DCR Adhere to all warnings on the unit and in this manual Follow all operating and user instructions This product 1s designed for commercial industrial use only This product 1s not intended for use with life support or other U S FDA designated critical devices Maximum loads must not exceed those specified in this manual Install in a clean environment free from moisture flammable liquids gases and corrosive substances Operate this product in an indoor environment at an ambient temperature between 35 F and 85 F 1 6 C to 29 C Additionally units using a remote condenser must be operated at outdoor ambient temperatures of VFD condensers above 0 F 18 C Liebert Lee Temp condensers above 20 F 29 C This product must be connected to and powered by suitable AC supplies rated in accordance with the unit s serial tag It must be properly grounded and protected by circuit breakers or fuses NOTE The Liebert DCR
3. 5 ton digital scroll downflow unit Factory installed leak detention Large Liebert 1COM screen 5 Liebert DCR Preparation 3 0 PREPARATION 3 1 3 2 The application and installation location should be determined and prepared before the Liebert DCR 1s delivered Proper planning will permit installing the required power and coolant connections and ensuring proper clearances The installation location must have An indoor climate controlled environment with the ambient temperature no higher than 85 F 29 C Sufficient height and clearance from ceilings walls fixtures and overhead sprinkler nozzles for the Liebert DCR including its Backup Fans NOTE The Liebert DCR must be installed on a flat level surface to maintain proper spacing and provide tight seals Leaving gaps in the field applied gaskets will reduce cooling efficiency increase energy use and adversely affect fire suppression system operation Heat rejection coolant supply for the Liebert Challenger 3000 Input power sufficient for Each Liebert Challenger 3000 one or two units each requires a separate input power feed DCR Control Panel and Fire Suppression System Backup Fans and IT equipment installed in the DCR racks For details about any component s requirements refer to that unit s user manual The Liebert Challenger 3000 installation manual 1s SL 11962 Liebert iCOM user manual is SL 18835 These are delivered wit
4. Edge guard should be applied we to the bottom edges of the plenum openings of the base plenums for all units Press the edge guard Part 1144478 onto the edge PA A s gt kes 4 Place the first DCR Base Plenum Rack beside the DCR Base Plenum Challenger Ensure that the gasket side of the DCR Base Plenum Rack faces the DCR Base Plenum Challenger see Figure 6 The front of each DCR Base Plenum Rack must be oriented with the rack placement in mind see Figure 6 The front of the DCR Base Plenum Rack has louvers The front of the DCR Racks have a door with a transparent acrylic sheet 5 Attach the DCR Base Plenum Rack to the DCR Base Plenum Challenger with the eight factory supplied 1 4 20 x 3 4 screws Part 94779A840 NOTE Do not tighten any screws at this time The screws must remain loose to permit additional assembly steps 6 Apply gaskets and edge guards to the remaining DCR Base Plenums Rack then attach each to the adjacent plenum assembly with the 1 4 20 x 3 4 screws provided Part 947794840 eight screws per plenum 11 Liebert DCR Installation Figure6 Correct orientation of base plenum sections and required side gaskets Gasket each DCR Base Plenum Rack on the side facing the DCR Base Plenum Challenger non redundant Liebert Challenger installation The front of a DCR Base Plenum Rack DCR Base Plenum Challenger 1 has louvers is wider than the plenums for the racks and
5. Liebert DCR 40 8 0 8 1 8 2 Installation Checklist INSTALLATION CHECKLIST Cooling and Power Component Installation Checklist All cabinets an plenums have been installed All gaskets and edge guard are installed All electrical and piping connections have been made All cabinet doors close and seal securely All Emergency Power Off interlocks to the UPS s and to the Liebert Challenger 3000 are connected All external Emergency Power Off and fire detection connections have been made 1f applicable All rack power strips are installed and connected to the load center for external UPS configurations and to UPS outputs for internal UPS configurations 1f applicable Fire suppression controls and the Liebert DCR controls connected to a UPS Liebert Challenger 3000 has been started up and factory commissioned UPS s have been installed and are operational Emergency Power Off has been tested and verified to shut down systems as designed Bypass timer for emergency power override works All external cable and piping entrances are sealed All rack supply air dampers are open and customer has adjusted the dampers to distribute the air based on the heat load in each cabinet 2T sensors are installed at the top front of each DCR rack Supply Air Temperature Sensor is installed in the DCR Base Plenum Rack The Liebert 1COM displays the supply air temperature All monitoring points are communic
6. S and Rear of Racks DCR Top L Plenum Rack b DCR Rack Standard Doors Panels Partitions Removed DCR Top Plenum Challenger 2T Sensor Probe Liebert Challenger 3000 2T Sensor Probe DCR Base Plenum Challenger DCR Base Plenum Rack 1103 535 Rev C DCR Control Panel amp Fire Suppression System Liebert DCR 24 Installation 4 10 Insert and Adjust Air Flow Adjustment Dampers 1 Insert Air Flow Adjustment Dampers into the bottom of the DCR racks These panels can be installed from the front or rear of the rack but the air supply opening must be at the front of the Liebert DCR see Figure 24 Figure 24 Air Flow Adjustment Damper installation Rear of DCR Rack Air Flow Adjustment Damper being im inserted from rear of the DCR Rack Cable can be installed from the front or rear as Filia E ole a FX NON S 2 The Air Flow Adjustment Dampers must be opened varying amoun Damper slides to modulate the flow of cooling air d _ RN ir enters through slot ye A a nn 3 2 Um ON La gt 7 F3 podus eM NS 2 P ts to provide adequate cooling to each DCR Rack 4 NOTE The cooling air flow required by the equipment in a DCR Rack will vary according to several factors especially the distance from the Liebert Challenger 8000 and each rack s heat load Do not obstruct back draft damper
7. UPS s and Rack PDU s The UPS s should be checked at least twice a year Liebert Services can be contacted at 800 543 2378 For a single phase Liebert UPS rack power strips and DCR racks call 800 222 5877 option 1 Outside North America call 00800 1155 4499 or e mail liebert upstechWemerson com For a three phase UPS and power systems call 800 543 2378 outside North America call 614 841 6598 For information about the warranty contact your local Emerson representative or go to www liebert com Electrical System All electrical components including the load center breakers should be inspected at least twice a year by a licensed electrical contractor Any loose connections should be tightened 45 Liebert DCR Technical Installation Illustrations 12 0 TECHNICAL INSTALLATION ILLUSTRATIONS Figure 30 Liebert DCR component arrangement DCR Top Plenum Rack DCR Rack With Backup Fan Standard Doors Panels Partitions ff Removed DCR Top Plenum Challenger Three Rack System Liebert Challenger 3000 Shown Maximum eee Six Racks Orientation Shown Cooling Airflow lt DCR Base Adjustment Plenum Challenger Dampers DCR Base Plenum Rack 1103 535 Rev C DCR Control Panel amp Fire Suppression System Liebert DCR 46 Figure 31 DCR Control Panel and Fire Suppression System components Control Terminal Strip Branch Breakers Provided for DCR Control
8. 3 Fans Install a Supply Air Temperature Sensor in the DCR Base Plenum Rack assembly one for each Liebert Challenger 3000 This type of sensor works best when it is 5ft 1 5m or farther from the Liebert Challenger 3000 The Supply Air Temperature Sensor is wired to the Liebert COMP at the factory It 1s on the center shelf of the Liebert Challenger 3000 see Figure 21 Cut the wire ties and route the wiring down and out the bottom base plate of the Liebert Challenger 3000 and into the second DCR Base Plenum Rack from Figure 21 Supply Air Temperature Sensor Supply Air Temperature Sensor Wiring 22 Liebert DCR the Liebert Challenger 3000 Installation Figure 22 Supply Air Temperature Sensor wiring routed through base plenum Supply Air Sensor 23 Liebert DCR Installation 4 9 4 Install 2T Sensors Install the 2 T sensors as shown in Figure 23 Wiring for both sensors should be routed in the front of the racks One sensor should be installed in the middle of the rack and one sensor near the top of the rack The DCR support strut provides an avenue for the sensor wiring Secure the wiring and sensors One set of 2T sensors per DCR rack 1s provided Figure 23 2T sensor and probe placement Temperature Probes One goes in the middle of the rack in between heat load and the other goes to the top of the rack T 2T Sensor a 2T Sensors Wiring and Temperature Probes
9. ees es ee os e es f an mee os es cs os ee att J 22 SA SHE E Ah I 1 I TT IL dI L JL JL d ES IM W5 5 Rack W6 6 Rack W7 7 Rack adusisbis W8 8 Rack W9 9 Rack W10 10 Rack Leveling Feet 1115782 1 Rev A Table 7 Liebert DCR Redundant Liebert Challenger 3000 dual capacity dimensions Reference In mm Ib kg W3 3 RACK 3673 1666 WA 4 RACK W5 5 RACK W6 6 RACK W7 7 RACK W8 9 RACK W9 9 RACK W10 10 RACK la Oo 1 N 1 e 1 Available only in a dual capacity configuration 2 Leveling feet at minimum adjustable to 75 19mm 3 Rack mounting rails must be positioned 9 229mm from the front for cooling airflow E CA N N N J U Liebert DCR 50 Technical Installation Illustrations Table 8 Liebert DCR part dimensions and weights Component Shipping Component Shipping Weight Weight Dimensions Dimensions Description Ib kg Ib kg DxWxH in mm DxWxH in mm WO232521 101 DCR Base Plenum Rack 87 39 102 46 ae ids s s WO232521 200 DCR Top Plenum Rack 117 53 132 60 ae pi T Re WO232521 300 DCR Base Plenum Challenger 101 46 116 53 76 60029111 1219 912 970 62 o 78 DCR Control Panel and Fire 76 3 x 31 5 x 14 96 x 36 x 20 We 5 1500 300 136 338 153 4938 x 800 x 356 2439 x 914 x 508 DCR Redundant Control Panel
10. 0 Maintenance MAINTENANCE Liebert Challenger 3000 The air conditioning system should be checked quarterly by an Emerson certified technician The trained technician who started your system is available to provide maintenance and on site support Fire Detection and Suppression System The cylinder should be checked monthly to ensure it remains properly charged The cylinder gauge must be in the green area If it 1s not contact your local fire suppression service representative The complete fire suppression system should be inspected every six months by a licensed fire detection company Liebert DCR System Inspection The enclosure protected by the clean suppression agent must be thoroughly inspected at least once a year to determine 1f penetrations or other changes have occurred that could cause the suppression agent to leak or otherwise change its volume Any conditions that could reduce the clean agent concentration must be corrected A yearly enclosure inspection is not required if a documented administrative control program exists that addresses barrier integrity The enclosure of all total flooding systems must be examined and tested to locate any significant air leaks that could result in a failure of the enclosure to hold the specified agent concentration level for the specified holding period NOTE Installation must maintain the sealed system s integrity as well as cabinet seals All cable entry holes must be sealed
11. 32 Liebert DCR access and connections 48 Figure 33 Liebert DCR dimensions Single Liebert Challenger 8000 49 Figure 34 Liebert DCR dimensions Redundant high capacity configuration 50 Figure 35 Liebert DCR power distribution 53 Figure 36 Liebert DCR control loglie RR RR ees 54 Figure 37 Liebert DCR control logic 2425422 PIE ERPDS REP Su T TII DER S SERE T RV iria dada ks 55 Fig re 38 LiebertDCR comtrol losis 36s 4404 edb boa bees daba ada M dad EE E 56 Eipure 99 basic system dIap PATI inne va dons ria e a iaa 57 Figure 40 Liebert DCR with rack mounted UPS systems 58 Figure 41 Liebert DER with central UPS ec esc cise eR A ue BREE AA EAGER AAS 59 Figure 42 Liebert DCR with A B UPS and load centers 60 iii Table 1 Table 2 Table 8 Table 4 Table 5 Table 6 Table 7 Table 8 Table 9 TABLES Liebert DCR system clearances Single or Dual Liebert Challenger 3000 s 6 Average heat load per cabinet 2 22 4 0 00 sd e ca 7 Liebert 1COM setting changes 33 TroublesbDOPLIBB sento adits ace cao abe A eus esp ACER LR dog by Baie CRUE Sca Oe ae asa 44 Electrical piping and control knockout sizes 48 Sy SUC MIG ERO STO aod Sata ek O A ae et a eed La its ypas Qa 49 Liebert DCR Redundant Liebert Challenger 3000 dual capacity dimensions
12. 9 3 9 4 10 0 11 0 11 1 11 2 11 3 11 4 Input Power Wiring Alternatives to DCR Control Panel and Fire Suppression System and Rack quipment e 52 2 Qu pd a oam ons Bibel d Qo Ses aH dada teet ein A 5 2 1 Single Bus Liebert DCR Load Supplied by a Single UPS 5 2 2 Single Bus Liebert DCR Load Supplied by UPS in Each Rack 5 2 9 Dual Bus Liebert DCR Load Supplied by Utility Power and Single UPS or by Two UPS I P s y zaza gp aa E Routine Power to Rack lord ias yaman dh 6 A u an A wS RE UC oa Q LIEBERT ICOM CONTROLS SETUP o A Gio Sse Nein QT TIR RPSL Liebert 1COM Setup for all Liebert DCR Types 6 2 1 Prevent False High and Low Temperature Alarms 6 2 2 Prevent Backup Fan Activation by Warnings 6 2 39 Control Cooling Calculation by Remote 2T Rack Temperature Sensor Readings 6 29 4 Additional Liebert iCOM Settings and Adjustments for Liebert DCR Operation Additional Settings for 20kW 3 6 Rack Liebert DCR Systems N Cooling Additional Settings for 20kW Liebert DCR Systems N 1 Cooling 6 4 1 Prevent High Temperature Threshold from Starting All Liebert Challenger 3000 s 6 4 2 Prevent False High Humidity Alarms Additional Settings for
13. Fire Suppression and Backup Fans DCR Emergency Power Off Overide Timer Manual 120 Minute Fire Suppression System Status Visual Inspection Fire Suppression System Control Panel 47 Liebert DCR Technical Installation Illustrations 225A Breaker Panel 120 208V Three Phase Input Fire Strobe Horn PS CO VAIABLE O Es FIRE SUPPRESSION MANUAL RELEASE FIRE SUPPRESSION SYSTEM ABORT O O R SYSTEM EMERGENCY POWER OFF Detail A Scale 1 2 Fire Suppression Control Bypass Timer Manual 120 Minute Fire Suppression System Gas Cylinder Visual Inspection 1103 536 Rev C Technical Installation Illustrations Figure 32 Liebert DCR access and connections Backup Fan With Gravity Close Damper Backup Fan Power Receptacle Main L5 20P Plug DCR Plenum Top Challenger Backup Fan Positioning P Orientation Plates Plenum Access Cover Plenum Access Covers Liebert Challenger 3000 DCR Rack Typ 3 to 6 Shown Without Standard Door amp Panels Liebert iCOM Interface Control Liebert Challenger 3000 Access Door Rear Facing Orientation Available DCR Control Panel amp Fire Suppression System Cooling Airflow Adjustment Damper Manual DCR Plenum Base Challenger gt d lt Plenum Access Covers 1103 537 Rev B Backup Fan Input Air Access Damper N Ta
14. High Capacity Liebert DCR Systems N Cooling 6 5 1 Ensure Even Airflow to all Racks During Low Heat Load leen DCR CONTROL PANEL AND FIRE SUPPRESSION SYSTEM OVERVIEW DCR Control Panel and Fire Suppression System Commissioning DCR Control Panel and Fire Suppression System Component Locations Fire Detection and Suppression System Operation Overv1iew 7 38 1 Local Emergency Power Off Override and Fire Suppression Control Bypass Timers INSTALLATION CHECKLIST esee hh es Cooling and Power Component Installation Checklist Fire Suppression System Installation Checklist 8 2 1 Contacting Representative to Arm the Fire Suppression System STARTUP it d usce pas us Vu due ana ce eae uu Ma uaa E pad AS Initial System Startup and Activation System Startup and ACTIVACION eden wasu s Root SO Pe oed Ere wag ore eto palancine Cooline Air Distribullonz anew ek ada adas Restarting after DCR Control Panel and Fire Suppression System Has Shut Down TROUBLESHOOTING sya arial a aia a d HEC E Se o aliada OR e ad MAINTENANCE 555 2 9 3 gu a AAA Liebert Challenger A A US a SDS ss Fire Detection and Suppression System Liebert DCR System Inspection Upocuanddaes
15. Rack equipment connected to the optional rack power strips Powering with Rack Mounted UPS s Separate Rack Mounted UPS s in each DCR Rack e Rack Mounted UPS s connected to the whips from the load center Rack equipment connected to the optional rack power strips See 12 0 Technical Installation Illustrations for diagrams on routing power wiring to rack loads Liebert DCR 30 6 0 6 1 6 2 Liebert COMP Controls Setup LIEBERT COMP CONTROLS SETUP The Liebert iCOM provides control of the Liebert Challenger 3000 and monitoring of conditions in the DCR racks If more than one Liebert DCR is installed the Liebert 1COM s may be networked so that each can be monitored or controlled from a single location Field wiring is required for the Liebert 1COM even if it is part of a stand alone unit as in a single Liebert DCR Refer to the Liebert Challenger 3000 installation manual SL 11962 or to the Liebert 1COM user manual SL 18835 The manuals are available at the Liebert Web site www liebert com The Liebert Challenger 3000 with Liebert COM has Liebert IntelliSlot slots for use with optional communication cards Ethernet Web SNMP Card RS 485 Modbus Card The hot swappable cards provide interfaces supporting open protocols including Modbus HTTP Web and SNMP See the Liebert Web site for the latest supported protocols Modbus reference information and SNMP MIBs www liebert com The Liebert COM must be config
16. and Fire Suppression Control Bypass Timers Two timers inside the front panel of the DCR Control Panel and Fire Suppression System assist in restarting the UPS and cooling systems and allowing for service of the fire panel without shutting down the system see Figures 28 and 29 These are Local Emergency Power Off Override Timer Fire Suppression Control Bypass Timer Local Emergency Power Off Override Timer If either the local and optionally connected External Emergency Power Off buttons or fire detection systems is activated the normally closed circuit opens shutting down the system After the fire alarm panel has been cleared or the Emergency Power Off button has been disengaged turning this timer past the 1 2 hour position temporarily returns the system to Normally Closed Once power is restored the UPS s and Liebert Challenger 3000 can be restarted Fire Suppression Control Bypass Timer To allow servicing the DCR Control Panel and Fire Suppression System this timer is turned to its maximum position by a qualified service representative The timer provides a normally closed circuit bypassing the internal normally closed relays 1n the fire suppression panel Once the timer expires the circuit is returned to its normal setting Off Figure 29 DCR Control Panel and Fire Suppression System timers DCR EMERGENCY POWER FIRE SUPPRESSION OFF OVERRIDE TIMER CONTROL BYPASS TIMER MANUAL 120 MINUTE MANUAL 120 MINUTE
17. 1 5m from Liebert 5 1 5m from Liebert Challenger 3000 Single 70 Smoke Detector single 4 Pin Sud Connector Connector Redundant Liebert Challenger 3000 Smoke Detector to Primary Smoke Detector TA Smoke Detector Power A Smoke Detector Liebert DCR 52 Technical Installation Illustrations Vy H LOA 81L0 cLOL N eseuq e l T vz 1 OVA 02 902 Jamog 94 Joey 61 az eseug p OVA OZL 80Z 74 JOMOd pH ADE Y eseug c OVA 0ZL 90Z EY Cl amod S Noe eseuq e l sza own 01 90 sip JOMOd ADE Y ly H L N dl vOz Liebert DCR 53 Figure 35 Liebert DCR power distribution eseug e ES el aseud Parnes or SY TA somo Li o0 0 6c ab roza Tate id AG AY 8z R ERE UOHn99Uuo x oes eseug e ASOZ BEN oc Sc I n juepunpay jeuondo vc co 000 JeBu lleuo 000 1eDueeuo EJES T ae CET Z et ueqer o z T A j a se _ 119991 CC EREN di jauvoz lei rU arwoz a S 1 cl 11 5 27 zi I J aseyd ovnsoz I qoi 6 V _ l eseud 1 OVA80Z kE M po E Po Oc t t 6L JOMOd Ti 4988 amaia 7 Ve q Mod egiopoes tf d J eseug L owagoz 127 T EN gt ET eseug 1 OVA80Z 8L ERREN ZL JOMOd Z HOEY 7 K T zie 2 OH zq J9 od Libye add dodo HT Net mers eS UONOSUUOD x oes eseug r A807 9 1 Z1 1 9 1 Z1 I1 E o 7 nae aal EJER JO l OVAOO9rF JO OpZ 80Z H prece Hi ined Spee E MO ME NENNEN sais
18. 76 3x 31 5 x 14 96 x 36 x 20 NN O232521600 Shell PERS TORIA 1938 x 800 x 356 2439 x 914 x 508 DE 51 Liebert DCR Technical Installation Illustrations Table 9 DCR field wiring list Wire Bundle From Color To Note Standard Capacity and Non Redundant Liebert Challenger 3000 Configuration P4 3 68 Yellow Smoke Detector P4 2 Yellow Smoke Detector Pi TRD Ls a e m z meme 42 Orange TBS Thermostat Power Power eme ue d m UA Yotow cargar 7999 ott Sutton Liebert iCOM Supply Air Temp Sensor EEES ado a a 3000 pee E fo Rack Temp Sensor Liebert Challenger on Liebert Challenger 3000 3000 Return to Liebert COM Air Sensor Backup Fan to Backup Fan Pp Backup Fan 3e Daisy Chain Redundant and Higher Capacity Liebert Challenger 3000 s Configurations Bedundantliepen TB75 Control Panel TB27 Field Supplied Wire Challenger 3000 TB 76 Te Control Panel TB28 Field Supplied Wire Eedumdantidspen TB37 Control Panel TB237 Field Supplied Wire Challenger 3000 TB 38 Control Panel TB238 Field Supplied Wire Redundant Topielenuim TB3 Control Panel TB29 Field Supplied Wire Thermostat TB Control Panel TB210 Field Supplied Wire Liebert iCOM Supply Air Temp Sensor Board in Liebert Challenger 3000 een Smoke Detector eon Smoke Detector Smoke Detector Power
19. Control Panel Load Center 3 PH 5 Wire 208 120VAC 225A 30 Pole 2 Refer to the wiring section of this document for additional component installations 3 Must be wired in accordance with national and local wiring codes and regulations ENP Supplied and installed Wiring Se Field Supplied Power Wiring DCRELECBD Rev 2 Field Supplied Control Wiring Liebert DCR 58 Technical Installation Illustrations Figure 41 Liebert DCR with central UPS Central UPS Liebert DCR Control Panel and Fire Suppression System See Note 1 Liebert DCR Control Interface 15A 120V TB1 Control Power 1 Source A Fire 15A 120V Control Panel 3 gt Source B Optional TB2 System EPO gt UPS A Shut Down Optional Field Supplied L 26 Rack 27 PDU 1 ey UPS B Shut Down O s Optional Field Supplied Rack PDU 2 Optional Field Supplied Rack RUNE qp PDU X See Note 2 Notes 1 Liebert DCR Control Panel Load Center 3 PH 5 Wire 208 120VAC 225A 30 Pole 2 Refer to wiring section of this document for additional component installations 3 Must be wired in accordance with national and local wiring codes and regulations ENP Supplied and installed Wiring Field Supplied Power Wiring DCRELECBD a Field Supplied Control Wiring Rev 2 59 Liebert DCR BuuIIAA lo uoO p llddnS pjalq gt BuuiM Jewog paljddns pjaly
20. If a Warning occurs it will still be recorded in the Event Log Control Cooling Calculation by Remote 2T Rack Temperature Sensor Readings The Liebert ICOM automatically reverts to using the supply air temperature sensor in the base plenum if it loses communication with the remote rack sensors The return air temperature sensor should never be used as a controlling sensor in the Liebert DCR Make these settings in the Liebert COM Service Menu gt Remote Sensors Remote Sensors Verify that all remote sensors installed on the front cold side of the racks are set to Control e SB02 Max This takes the average or maximum of the two temperature probes per 2T SB03 Max This takes the average or maximum of all the 2T sensor readings NOTE Verify that the 2T temperature sensors are in an active airstream Do not place the probes in front of blanking plates Additional 2T temperature sensors can be installed in the Liebert DCR for monitoring such as determining the temperature in the rear of the racks These sensors must be setup as Reference Liebert DCR 32 Liebert COMP Controls Setup 6 2 4 Additional Liebert iCOM Settings and Adjustments for Liebert DCR Operation These changes to the Liebert COM settings are also required for proper operation of the Liebert DCR Table 3 Liebert COM setting changes Liebert COM Change Alarm Change Applicable To Control Key Parameter To Type To S222 Warni
21. Integral time before adjusting the Proportional setting S108 AutoSet Enable No S109 Temperature Deadband 2 F 110 Supply Limit Enabled Setpoint No 31 Liebert DCR 6 2 1 6 2 2 6 2 3 Liebert COMP Controls Setup Prevent False High and Low Temperature Alarms The Liebert ICOM 1s set at the factory for open rooms The high number of air exchanges in the Liebert DCR may cause false alarms These may be prevented by delaying the sensor triggers To delay the sensor triggers make these settings in the Liebert 1COM Service Menu gt Set Alarms 9219 REM Sensor Alarms Init Delay Com Set 180sec Com Set means common setpoint for delaying all sensors S220 High and Low Remote Temperature Setpoints 90 F 55 F for remote 2T rack sensors NOTE q The system must use Liebert IntelliSlot cards IS WEBL or IS UNITY DP with the proper version of Emerson Protocol to report remote temperature alarms remotely Older communication cards such as the Liebert OC WebCard shipped with a version of the Emerson Protocol that is now outdated and will not report remote sensor data Prevent Backup Fan Activation by Warnings To prevent warnings from activating the Backup Fans make this setting in the Liebert COM Service Menu gt Set Alarms S222 Warning Activates Alarm Relay NO Once the critical threshold is surpassed the Liebert COM would generate an alarm and activate the Backup Fans NOTE
22. Liebert DCR Part of the SmartRow Offering Installation Manual 3 6 Single Redundant and 5 10 Racks Higher Capacity Cooling Units 60Hz EMERSON Network Power TABLE OF CONTENTS IMPORTANT SAFETY INSTRUCTIONS o 1 1 0 COGBOSSARY OF SYMBOLS coa asc tala ee arene toa ae i RN qu ec Ud 2 2 0 INTRODUCTION za metis sida P al eto Urt eR Aa Ade 3 2 1 Operational OVOEVIGW ases aed me dtes dai a Mrd th uix cbe a Rog ae Jt 3 2 2 DCR Control Panel and Fire Suppression System Commissioning and Training 3 2 9 Liebert DCR Components 2 d aate a ERES c a ao s Q BL a u ua 3 4 2 4 Liebert Challenger QUDUS NO A 5 3 0 PREPARATION cias AA AAA 6 3 1 Clearance Requirements ai AA A URS AAA C eed 6 32 sp Oea aa e Quya a a e ate E u a Gach oe ye 6 9 9 Unloadine the Liebert DOD 22e roo sale ek Edw OSS OOO A CY apus esa bal owed 7 3 4 Required Setup Tools and Equipment 7 3 5 Hede Load Guidelines sia arder ada adde dada 7 4 0 INSTALLATION 39583 0 2 8 808 noD nasa dud q do 8 4 1 Assembly Sequence Overview 2 5 4 aes HUE ES do du doy AAA deut 8 4 1 1 Liebert DCR with Single Liebert Challenger 3000 8 4 1 2 Liebert DCR with Two Liebert Challenger 3000 Units Redundant or Dual Cooling o O aS uns 9 4 2 Install the DCR Base Plenum Challenger 10 4 3 Assemble the DCR Base Plenums Rack
23. Liebert Challenger 3000 and conveyed to the racks with bottom plenums Heated exhaust air from the racks returns to the Liebert Challenger 3000 through the top plenums A Backup Fan System is included to exhaust air in the event of excessive internal temperature The DCR Control Panel and Fire Suppression System monitors the air in the Liebert DCR for evidence of combustion If the smoke detector mounted in the return air plenum senses combustion products the system control activates audible and visual alarms and releases a fire suppression agent see Figure 27 DCR Control Panel and Fire Suppression System Commissioning and Training A local qualified service representative will commission and arm the DCR Control Panel and Fire Suppression System after the Liebert DCR is fully installed and operational The representative will conduct training on the system during the same visit The commissioning arming and training cannot be performed before all items in 8 1 Cooling and Power Component Installation Checklist and 8 2 Fire Suppression System Installation Checklist have been completed 3 Lieber DCR Introduction 23 Liebert DCR Components Required components differ based on whether the Liebert DCR employs a single Liebert Challenger 3000 or two Liebert Challenger 3000 s DCR Base Plenum Rack with Air Flow Adjustment Damper one for each DCR rack DCR Top Plenum Rack with Backup Fan one for each DCR Rack DCR Base Ple
24. NGER FAULT INPUT HVAC REDUNDANT PLENUM THERMOSTAT LOCAL EPO CONTACT 1 PUSHBUTTON LOCAL EPO CONTACT 2 PUSHBUTTON 8 TBI TER 9 182 TER 10 TB3 TER M CONTROL POWER SOURCE A 120VAC UTILITY SUPPLIED CONTROL POWER SOURCE B 120VAC OPTIONAL REDUNDANT CHALLENGER FAULT INPUT HVAC REMOTE EPO CONTACT 1 REMOVE JUMPER IF USED TO TB2 5 TB2 9 x REMOTE EPO CONTACT 2 REMOVE JUMPER IF USED TO TB2 6 182 10 INAL BLOCK INAL BLOCK INAL BLOCK TOP PLENUM SMOKE DETECTOR TERMINAL BLOCK 12 DENOTES USER ON SITE SUPPLIED WIRING 13 FC FIRE CONTROL PANEL Technical Installation Illustrations TB2 24V TERMINAL LAYOUT CONTINUED FC AUX RELAY 3 AND BYPASS TIMER 24VDC FC POWER SOURCE FC 24VDC COMMON SYSTEM RESTART TIMER HVAC SHUTDOWN RACK UPS SHUTDOWN RACK 2 UPS SHUTDOWN RACK 3 UPS SHUTDOWN RACK 4 UPS SHUTDOWN RACK 5 UPS SHUTDOWN RACK 6 UPS SHUTDOWN REDUNDANT HVAC SHUTDOWN SMOKE DETECTOR TB3 TOP PLENUM TERMINAL LAYOUT TOP PLENUM TO TB1 7 TO TB1 8 A TO P3 1 FC THERMOSTAT T0 P43 FC I TO P4 2 FC EOL j TOLSAR FANPOWER 4 soon 9 9 a oo s 4 3K 1012 018 E04 Pg 4 Rev 4 Lieber DCR 56 Figure 39 Basic system diagram Optional Rack PDU 71 Optional Rack PDU 2 Optional Rack PDU X See Note 2 Notes Liebert DCR Utility Feed Control Panel and Fire Suppression Sys
25. NSANS AYJOSIAYIANS vl VLZ ES 12 12 S NIVIV M i m 00 ed LZ 193130 VOZ Y 02 02 Se oS v69 oS 69 oS 69 3 DIAZ eSI vgg AS 89 S 89 pope MOIO3130 3MOWS INVONNGSY MOIO3130 3MONS MOIO3I3O JNOWS Q3lvsH3dO ONINdS 9 es IVANVIN g5 3 P5 43 in MO 018 un po N hf 38V3138 VIO3N ES SA del EA i Z dy NA H3AIL SSVdAB ON of 94 TANVd 93 NINOZL JOMINOO 3MIJ LAL eet only 24 TANVd TOYINOY JH BB E3 Bp cd copy re r3 es ARE q3sn SI Od3 310W3M il YIANNF 3AOWGMH 3 NMO NYO NYO Y 8 93 8 93 8 c3 zl s Fea Fea 4 sie jose o TO M3MOd AMVMWhHd Od3 fs Suo ass TOI SES S x NA ey 1HM N3JO lg d zg edXzas edq29 3 f o NYO a UN G P ERI cn E A or P O hL lt S A SA Eb HH EL wass bb M3MOd AMVWIMd Od3 ONE LI ars 949 vws odg N T 33JO HZiMOd T TS Oda 310W3H vNOILdO AON3O9NAW3 q3sn SI Od3 310NW3M 4l ZOVAvZ LOVA YIAN JAON33 N 6b MOM NP NUZ Novvrz CO3 8L07 CLOL NOYWJ gt Zovec VON vC Liebert DCR 55 Figure 38 Liebert DCR control logic 181 120VAC TERMINAL LAYOUT FAN POWER 120VAC OUT TB2 24V TERMINAL LAYOUT FIRE CONTROLLER AUX RELAY 2 PLENUM THERMOSTAT 15 NOTES 1 ALL WIRE 16AWG UNLESS NOTED 2 BLK DENOTES BLACK WIRE 3 BLU DENOTES BLUE WIRE 4 BLUWHT DENOTES BLUE WIRE WITH WHITE TRACER 5 ORN DENOTES ORANGE WIRE 6 ORNWHT DENOTES ORANGE WIRE WITH WHITE TRACER RED DENOTES RED WIRE CHALLE
26. SHLL 8 L Ll YAOVYL 3 LIHM HLIM 3HIM 39NVHO S31ON3q LHWNHO 9 NMOQGLNHS 9ADVY SAN 98 TIA Gs LL VGHO LL v8 VVMHO 48 NAAOQ1 HS MOVa SAN o8 ZA ZL SHO zi veg VO z8 NMOdLNHS IVAH S ec OVAH MJONJTIVHO L3383ll MAS Q 13A ez TA 6 SHO 6 v VHO LL 520718 TVNIASH3 L ZaL O OL 390718 IVNINY31 LaL 6 H3OVHL SLIHM H LIM 38M 360118 S310N3G LHAVITIg 3HIM MOTI3A SSLONSG 73A 9 3HIM Gay SHLON3Q qaq JHM J3ONVHO SALONAG NYO 38IM 3fr18 SIL1ON30 Ma lt qo o4 m XIM MOV1d SLONA r8 q3sn N3H G31ON SSa Nh DMVIL 3MIM 1Y S3LON rm YO 1SIS3Y 3190738 E get m SE lt Z gt A a 2 L A 9 lt NS ue 9NIMIM W31SAS LNVONNGSY SH MOIO3130 34O0NS YO193130 Y 2 d LINQ INVINNOIY 3MONS OZ AMOSIANadNS AMOSIA
27. Sum perejsui pue paljddns qN3 suone jnba pue sapos Hum e90 pue euoneu YUM BOUePJONIE ul palm aq ISN Suonej e1sui jueuoduJoo euonippe 104 jueuunoop siu Jo uonoes Hum ay 0 19 9M Z c 9 qaoa 13490 Technical Installation Illustrations Figure 42 Liebert DCR with A B UPS and load centers veonos lt Si JeMOg 03u02 GL 998 13 U OJ JUO2 eod Hegel 219d 0 VScc OVAOCI 80c SIM S Hd 19 u98O peo SUE O1Ju0O OQ Hegel peiddns pjer4 peijddng pjerJ im in pals jaued o Q OJJUOO AOZLIVSL eat AOZLIVSI 1 30N ees uwaj s s oisseJddng 3 114 ue JauB y OJ UO2 390 Hegel yoey jeuondo CH v nad yoeYy euondo L v nad Joey jeuondo S ON z oN 999 X v Ndd 7 SJON ees X a nad yoey jeuondo CH a nad 198 y jeuondo LA a nad yoeYy euondo peijddng pjer4 AOCVLNSI Q0000 QNO N 1 cl A JON 99S l JOJUST peo 7 YO Heqa p 4 g uepunpay 60 Liebert DCR 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 2013 Liebert Corporation All rights reservedthroughout the world Specifications subject to change without notice Liebert is a registered trademark of Lieb
28. ack extrusions 18 Figure 15 Gasket applied to face of DCR Top Plenum Challenger or DCR Top Plenum Rack 19 Figure 16 Remove bolts from DCR Rack top RR RR RR res 19 Figure 17 Gasket application to top of DCR racks 20 Figure 18 Wiring DCR Top Plenum Challenger RR eee nes 21 Figure 19 DCR Top Plenum Challenger RR RR Rh hes 21 Figure 20 Smoke Detector connections 22 Figure 21 Supply Air Temperature Senso 22 Figure 22 Supply Air Temperature Sensor wiring routed through base plenum en 23 Figure 23 2T sensor and probe placement us IA eie d waa rae wx a pases e Ra X esa ben 24 Figure 24 Air Flow Adjustment Damper installation 25 Figure 25 Install and connect Backup Fans llle aes 26 Figure 26 Redundant Liebert Challenger 3000 option arrangement 27 Figure 27 DCR Control Panel and Fire Suppression System exterior features 38 Figure 28 DCR Control Panel and Fire Suppression System iInternalfeatures 39 Figure 29 DCR Control Panel and Fire Suppression System timers 40 Figure 30 Liebert DCR component arrangement eee ee 46 Figure 31 DCR Control Panel and Fire Suppression System components 47 Figure
29. ating to the Network Management System Computer equipment is installed so that the heat load 1s evenly distributed among the DCR Racks Power and temperature monitoring are fully operational Perform all installation checks as stated in manuals for Liebert DCR components Liebert Challenger 3000 Liebert iCOM UPS s and rack power strips Each UPS and Liebert Challenger 3000 must be started before the fire suppression system can be activated Fire Suppression System Installation Checklist _ 1 __2 Is permanent 120VAC power available and on Is the Building Fire Alarm tied 1n a Alarm b Trouble P HE c Supervisory Is the Fire Suppression tank installed Is the pipe installed Is the nozzle installed Is the Liebert Challenger 3000 EPO tied in Is the EPO timer installed Is the EPO tied in Is the Liebert DCR installation complete and the Liebert DCR operational 41 Liebert DCR Installation Checklist 8 2 1 Contacting Representative to Arm the Fire Suppression System Do not call to have the Fire Suppression system commissioned until all of the items in 8 1 Cooling and Power Component Installation Checklist and 8 2 Fire Suppression System Installation Checklist have been completed The local company arming the system cannot turn the system On until all the items above have been completed Scheduling the local distributor prior to these items being completed may result in additional char
30. auci N FEE qe gt seud ONAOZL N N eseud t SVAOZL JOMOd Z 49e H JINOLI y LA02 H JewOg 19821 SUOIJOOUUOD JOMOd ESEJ k a Buijooo 119q9r 8 z UOlJO Uuu0O x oes eseug r AOCL 9 NON S qaadAoesd dalNolsno y E weowwmo e HIC A ee oe EE ia se Z EP XE LH U S S oljuoO jeueg olluoO en dHNSI uoisseiddns ails punoio sisseuo uondo Sdn pseogjaued Y Duisf Ji s JIAA SAOW SY O GO O QQ S N Aa Aa 11 VSZ ZH09 Y OVAOC L 80 Technical Installation Illustrations A o WANA ld dOL 19078 IVNIINSHGLL 8 1 L P 38IM 39NVHO SALONAC NYO G 39018 TVNINW 31 81 6 O i 3439V31 3 LIHM HLIM 38IM 3N78 S310N30 1HWMmlg y AAA 8 389 M an 18 S310N30 Ma e ss 038 SALONAG 038 LZ 38M A9V18 SALONSG M8 Z r ASM YAOVYL 31IHM HLIM 38M 39NVSO SALONAG LHWNYO 9 G31ON SSSINN DMVOL 38IMTIV SILON LOA 8LO cLOL 97 MO 133HS SIHL OL cH os HE Gz LG MOU NOW 03 810 2 0 OL F VNVO ui NIVHO ASIVG vz ax 9 NYHL 240 V8 OL NOILOANNOO Oe 499 MN usui EOS z IVISONY3HL W N3ld dOl p E Y02 G1 van di zz S ma M S gt OvAH YSONSTIVHO 1Y393N INVONNA3Y Sy 0c xog c F5 CHADVYI Nv NY NY IVISONY3HL WnN3ld dOL d 1MOVa es ep mmm 8L E NYO vzr N3O SNV4 anxova NT euo Q s 1NV4 SZ Q u El om YIONITIVHO aer Ly El MN 9 SNV4 dn3O9V8 NMOG A so 1 ud ed AVIAN XNV 9 94 T3NV
31. ble 5 Electrical piping and control knockout sizes oe Sie Sze EU Size Size Quantity A Ww 9 8 8 r t 4 C Pe s 4 re sor fr All entrances must be sealed for proper fire suppression operation Liebert DCR 48 Technical Installation Illustrations Figure 33 Liebert DCR dimensions Single Liebert Challenger 3000 Da MEN I H2 E i Liebert Challenger 1 3000 DCR Control Panel amp Fire Suppression System ds D1 B W1 3 Rack T T adustsbie 1103 538 Leveling Feet SIDE VIEW Rev E Leveling Feet at Minimum Adjustable to 75 Table 6 System dimensions Liebert DCR w Single Liebert Challenger 3000 Dimensions Weight Reference In mm Ib kg W1 3 RACK 114 2896 2652 1203 W2 4 RACK 142 3594 3079 1396 W3 5 RACK 169 4293 3506 1590 WA 6 RACK 197 P 3933 1784 49 Liebert DCR Technical Installation Illustrations Figure 34 Liebert DCR dimensions Redundant high capacity configuration i H2 EA amen lt 93 8 o 2381mm a DCR Control ad Panel amp Fire Suppression I 7h 2 7o S ho hnS EBERSQmS LEALOAG o Lx L J GG I HM i System C war i zF o a ECC i gcc EL cc tk t c c tHmth k kcrc h tkkc hc n AAA ee os os es ns cs e oe os cs
32. ckup Fans into outlets on the adjacent Backup Fan housing see Figure 25 25 Lieber DCR Installation 4 Plug the first Backup Fan into the receptacle on top of the Top Plenum Challenger Figure 25 Install and connect Backup Fans Movable plates on DCR Top Plenum Rack these are sized to permit numerous positions for the Backup Fan These plates are not bolted to the plenum bolts on additional plates and on the Backup Fan hold them in place Power Connection for Backup Fan on Arale for ii be dle Power cord for the Backup Fan connected to the receptacle on the Top Plenum Challenger All four top cover plates can be positioned to permit proper placement of the fan These two have holes for self tapping sheet metal screws to connect them to the DCR Top Plenum Rack and to the Backup Fan assembly NOTE The sealed system s integrity as well as cabinet seals must be maintained All cable entry holes must be sealed before the Liebert DCR is started 4 12 Air Ventilation Management Free rack space in the DCR racks must be blocked with blanking panels Blocking the open space helps optimize system cooling performance by minimizing short cycling of conditioned air Heat loads should be balanced as well as possible among the cabinets This can be done by distributing equipment evenly among the cabinets to avoid excessive heat concentration Refer to Table 2 for details 4 12 1 Ventilation Requirements T
33. d lO31NOO EN 6 vl 318vilVAV YIMOd O s xou si LE MOV NVJ ii dnyovad i Ov ZTe8c 23 Z 7TS 23 1x0 9 kL 318V1IVAV v 3o4nos zovvz es 0 o gt 1HW N3O re 6 O Nowyz LOVbz g 8 9 ze luo i 9 e sti ZHt UHD 9 T N S Ho I e 6c yop NE OMVeL Y a ix 8c ZHO9 DL VSL 2 OVAOCL zgo o 5 TVNOLLdO 8 3OYNOS Y Ze y SS n E Lgo Z N zH09 H o z OVAOCL a e NA LHS SIHLWOHd gt eH LHI L10nv43a ALMILN V 3DYNOS 2 i LL 54 Liebert DCR Technical Installation Illustrations Figure 37 Liebert DCR control logic NMOQGLNHS SMOVa SAN MAA AeYy Bd 03 910 ZLOL NMOd H3MOd HO4J N3dO ANV NOILVH3dO IVINJON Y43I0NN G3SO 19 3HV SLOVINOO TIV ONIMIM A3NIAANS ALIS NO Y3ISN SALONA NMOQGLNHS OVAH LNVCGNf IC3H S ez own M S YIONITIVHO 193831 ee 28 734 734 oil 9 VGYO oil 9 90 8 WYNO a28 zi VGHO zi Gaze VVHO azs TA NMOQGLNHS YADVE Sdn Gx 6 VGHO 6 oze VO aze LAOVYH YO TV4LNIO NMOQGLNHS SdN NMOQGLNHS ZADWE SAN Ez PA LL SHO Ll 44 VSO 022 911 TA 13A OL 9 GUO OL 9 pu Face CNL q31V83 3WIA dO SNI3d LYVLISSY NY S IVANVIA LSAS NINOZL el VN WNNA Id dOL 190719 TIVNIIN
34. d personnel wearing appropriate safety headgear gloves shoes and glasses should attempt to move lift remove packaging from or prepare the unit for installation Read all instructions before attempting to move lift remove packaging from or prepare unit for installation WARNING Risk of top heavy unit falling over Can cause equipment damage injury or death Read all of the following instructions 1n the DCR Control Panel and Fire Suppression System manual before attempting to move lift remove packaging from or prepare the unit for installation The instructions must be adhered to when handling this unit with or without the skid This the unit could tip over if it is handled improperly 1 Apply gasket 1 x 1 4 factory supplied along the outside edge of the Liebert Challenger 3000 that the DCR Control Panel and Fire Suppression System will rest against see Figure 10 Use a lifting device to place the DCR Control Panel and Fire Suppression System onto the DCR Base Plenum Challenger Liebert DCR 14 Installation Figure 10 Gasket application location on Liebert Challenger 3000 DCR Control Panel and Fire Suppression System Liebert Challenger 3000 Gasket applied to side of Liebert Challenger 3000 that contacts the DCR Control Panel and Fire Suppression System 1103 538 Rev C The DCR Control Panel and Fire Suppression System must be aligned with the front of the DCR Base Plenum Challenger The f
35. e Liebert DCR controls Backup Fans and Backup Fan controls are connected to rack mounted UPS s manually restart the UPS s The DCR Control Panel and Fire Suppression System have an internal battery for the fire suppression system The system will continue operating on this battery up to 24 hours unless power is restored earlier The Liebert Challenger 3000 is set up to restart when power 1s restored 43 Liebert DCR Troubleshooting 10 0 TROUBLESHOOTING Table 4 Troubleshooting F ire Detection System Call Emerson Network Power Solutions Applications at 800 222 5877 option 1 in Alarm Condition Liebert Challenqer 3000 Refer a properly trained and qualified service representative or consult the Liebert Challenger iaa 9 3000 operation and maintenance manual SL 11963 shipped with the Liebert DCR and available at Liebert s Web site www liebert com For assistance call 800 543 2378 Turn Emergency Power Off Override timer beyond the 1 2 hour position see Figures 28 If UPS System and 29 and restart UPS If the Liebert DCR is powered by a stand alone 3 phase Liebert UPS has shut down and will not restart put the UPS in bypass and restart the remaining equipment Call 800 543 2738 for assistance in putting the UPS in bypass and for service support If Liebert Challenger The Liebert Challenger 3000 will restart automatically once power has been restored For 3000 has shut down assistance call 800 543 2378 Liebert DCR 44 11
36. e user must connect the Backup Fans Backup Fan controls and the Liebert DCR controls to a UPS power source To determine if an electrical disconnect is required to be installed in conjunction with the use of the Liebert DCR consult local codes and agency requirements Single Bus Liebert DCR Load Supplied by a Single UPS The UPS that will supply input power to the Liebert DCR Control Panel and Fire Suppression System and the rack equipment must be rated to support the load 1 Connect the UPS to the DCR Control Panel and Fire Suppression System load center 2 Usecustomer supplied whips to route power from the load center panel board to the individual racks as required 3 Once power 1s routed to the racks optional rack power strips can be installed and plugged in to distribute power to the rack equipment 4 Connect Backup Fans 29 Liebert DCR 5 2 2 5 2 3 5 3 Power Connections Single Bus Liebert DCR Load Supplied by UPS in Each Rack 1 Connect utility Input power to the load center in the DCR Control Panel and Fire Suppression System 2 Use customer supplied whips to route input power from the load center panel board to each rack UPS as required 3 Once power 1s routed to the rack UPS s rack power strips can be installed and plugged in to distribute power to the rack equipment 4 Connect Backup Fans to the UPS in the rack or to rack power strips connected to the UPS in the rack 5 Connect the DCR C
37. ease energy use and aduersely affect fire suppression system operation 7 Before installing the next rack apply the factory supplied gaskets 1 x 1 4 to the aluminum frame extrusion on the outer side of the DCR Rack installed in Step 5 Gaskets must be installed on the front extrusion and the rear extrusion of each rack after 1t 1s set on its DCR Base Plenum Rack The gaskets are needed to seal each rack against the adjacent rack 17 Liebert DCR Installation Figure 14 Applying gaskets to the rack extrusions DCR Rack Aluminum Frame Extrusion Do ae am Is A y A LI ge g yA 3 n 8 b 6 8 bi a bi B t E id Press gasket onto extrusion and pull facing paper away to reveal adhesive surface i if 8 Repeat Steps 5 through 7 for each additional DCR Base Plenum Rack and DCR rack Systems with a single Liebert Challenger 3000 Proceed to 4 8 Mounting DCR Top Plenum Rack Systems with two Liebert Challenger 3000 units Refer to 4 13 Install a Second Liebert Challenger 3000 4 7 Mounting the Top Plenum Challenger 1 Apply factory supplied gasket 1 wide by 1 2 thick to the edges of the Liebert Challenger 3000 and the DCR Control Panel and Fire Suppression System Use two gaskets Part 1143978 for the long sides use two gaskets Part 1143979 for the short sides 2 Set the DCR Top Plenum Challenger on the top of the Liebert Challenger 3000 and DCR Control Panel and Fire Supp
38. eeded Table 2 Average heat load per cabinet Single or Redundant Configuration High Capacity Configuration 20kW Maximum 36kW Maximum Number of Heat Load Number of Heat Load Cabinets Per Cabinet kW Cabinets Per Cabinet kW T 5 7 10 CEN NE NENNEN NE EN NENNEN MEE O oq AA 8 7 Liebert DCR Installation 4 0 INSTALLATION 4 1 Assembly Sequence Overview 4 1 1 Liebert DCR with Single Liebert Challenger 3000 Assemble the Liebert DCR components for a single cooling system in the order below and illustrated in Figure 2 or Figure 3 for a redundant or higher capacity system For specific procedures refer to the subsequent sections Prepare components Assemble base plenum sections with gaskets nstall Liebert Challenger 3000 with gaskets nstall DCR Control Panel and Fire Suppression System nstall DCR racks with gaskets nstall DCR Top Plenum Challenger with gaskets nstall Top Plenum Sections on DCR Racks with gaskets nstall Backup Fans Figure 2 Liebert DCR installation sequence for single Liebert Challenger 3000 system Backup Fans install after DCR Top Plenums Rack DCR Top Plenum Challenger DCR Top Plenums Rack Liebert Challenger 3000 6 and DCR Control gt Panel and Fire Suppression System 7 DCR Base DCR Base Plenums Rack Plenum Challenger First DCR Rack to be installed Liebert DCR 8 Installation 4 1 2 Liebert DCR with Tw
39. enums Rack to be installed 9 Liebert DCR Installation 4 2 Install the DCR Base Plenum Challenger 1 Position the DCR Base Plenum Challenger where the power and refrigerant connections can be made easily This component must be installed first and positioning is critical to the remaining installation Connections will be made either through the DCR Top Plenum Challenger or the DCR Base Plenum Challenger depending on the Liebert Challenger 3000 system selected This selection correlates with the selection of a top fed unit bottom fed unit The top and base plenums for the Liebert Challenger 3000 and DCR Control Panel and Fire Suppression System module are wider than the plenums for the DCR racks DCR Base Plenum Challenger or DCR Top Plenum Challenger 2 Check the DCR Base Plenum Challenger installation position to ensure that it meets the required clearances refer to Table 1 NOTICE Risk of severe cabinet and system stress Can cause equipment damage and improper operation Do not move the Liebert DCR after assembly This unit 1s not designed to be moved after assembly Movement after assembly will void the warranty and can damage internal components and reduce unit stability Floor anchoring if required should not be performed until after the entire base plenum assembly has been completely assembled and leveled 4 3 Assemble the DCR Base Plenums Rack The base plenum assembly supports the Liebert DCR and distributes cooli
40. ert Corporation All names referred to are trademarks or registered trademarks of their respective owners SL 11464_REV3_04 15 Emerson Network Power Division Liebert Web 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 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 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 www EmersonNetworkPower com
41. ges After the tasks above have been completed the fire suppression system should be commissioned Liebert DCR 42 9 0 9 1 9 2 9 3 9 4 Startup STARTUP Initial System Startup and Activation The Liebert DCR s initial startup will be performed by Emerson personnel along with the associated qualified fire suppression service personnel The initial startup should be scheduled after all installation steps have been completed and the unit 1s ready for startup and commissioning Shutdowns for maintenance and other reasons require the Liebert DCR to be restarted according to the instructions in 9 2 System Startup and Activation NOTE q The DCR Control Panel and Fire Suppression System is shipped from the factory with the solenoid activator disconnected and without the nozzle placed in the supply airstream The fire suppression system should be commissioned after the UPS s Rack PDU s and Liebert Challenger 3000 have been commissioned and are fully operational System Startup and Activation The Liebert DCR 1s configured to startup when power is connected Balancing Cooling Air Distribution Cooling is simplified if the heat load in the Liebert DCR is balanced among the cabinets Installing multiple devices that generate more heat in one or two cabinets will produce more heat in those cabinets requiring more cooling See 3 5 Heat Load Guidelines for guidelines on the Liebert DCR s heat removal capability Check t
42. h the unit and are available at Liebert s Web site www liebert com Clearance Requirements See Liebert DCR dimension details in 12 0 Technical Installation Illustrations Table 1 Liebert DCR system clearances Single or Dual Liebert Challenger 3000 s Minimum DCR System Clearances In mm Ceiling Height 96 2438 4 Space Above Ceiling For Backup Fans 12 5 317 5 Closest Sprinkler to Any Surface 18 457 2 Liebert Challenger 3000 Front 208V System 36 914 4 Liebert Challenger 3000 Front 460V System 42 1066 8 36 914 4 27 685 8 Liebert DCR System Rear Liebert Challenger 3000 460V Facing Back 42 1066 8 Rack mounting rails must be positioned 9 from the front for cooling airflow Clearance dimension requirements must be adhered to per local codes Inspection Upon receiving a Liebert DCR examine the packaging for any signs of mishandling or damage If any damage 1s noted notify your local Emerson representative and the carrier immediately Liebert DCR 6 3 3 3 4 3 5 Preparation Unloading the Liebert DCR Before unloading the Liebert DCR refer to the manual for each component particularly the Liebert Challenger 3000 and DCR Racks These manuals are shipped with the Liebert DCR and are available at the Liebert Web site www liebert com Read these manuals thoroughly they include handling instructions and safety notices that must be followed when unpacking installing operating and ma
43. has no louvers Figure7 Leveling plenum Use a carpenter s level to level the base plenum assembly SS Jam Nut wt Height aet Adjustment Nut AE AN NS 7 Use a 3 4 19mm wrench to adjust the leveling feet so that the assembled base plenum is level 8 When the complete base plenum assembly 1s level use the 3 4 19mm wrench to tighten the jam nuts against the bottom of the plenum assembly to secure the leveling feet 9 Tighten all internal plenum screws installed in Step 5 NOTE Floor anchoring if required should not be done until after all steps above have been completed Floor anchoring is optional Hardware for this step is not included For further information contact your local Emerson representative 44 Set the Liebert Challenger 3000 on the Base Plenum Challenger Determine how the Liebert Challenger 3000 will be oriented The cooling unit will fit on the plenum with the Liebert iCOM screen facing the end of the aisle front of the aisle or to the rear of the aisle 1 Apply the factory supplied gaskets 1 x 1 2 Part 1143972 quantity 2 and Part 1143971 quantity 2 around the opening in the DCR Base Plenum Challenger the area where the Liebert Liebert DCR 12 Installation Challenger 3000 will sit Apply gasket only to the area highlighted in Figure 8 This is where the Liebert Challenger 3000 will rest on the plenum NOTE q Take care not to damage the gasket when a
44. he Liebert 1COM to determine the 2T sensor readings from each DCR rack If the 2T sensor air readings are too high in one or more cabinets reposition the Air Flow Adjustment Dampers to equalize the cooling e Balance inlet air dampers for each cabinet Adjust the dampers to equalize the leaving air temperature of each rack Refer to Figure 11 for adjustment details If the 2T sensor reading of a rack is lower than the average leaving air temperature of the other racks close the inlet damper slightly to reduce cooling air flow Conversely if the 2T sensor reading of a rack 1s higher than the average leaving air temperature of the other racks open the inlet damper slightly to reduce cooling air flow Recheck the 2T sensor reading via of the Liebert iCOM and adjust the dampers further as required Restarting after DCR Control Panel and Fire Suppression System Has Shut Down If the DCR Control Panel and Fire Suppression System Rack Supply has shut down 1 Turn Emergency Power Off Override timer beyond the 1 2 hour position see Figures 28 and 29 2 Confirm that input power is available a Ifthe Liebert DCR is powered by a stand alone Liebert UPS and will not restart put the UPS in bypass and restart the remaining equipment Call 800 543 2378 for assistance in putting the UPS in bypass and for service support For a Liebert three phase UPS call 800 543 2378 and for a Liebert single phase UPS call 800 222 5877 option 1 b Ifth
45. he maximum room temperature for Backup Fan ventilation 1s 85 F 29 C If the room is sealed the air inlet opening size from the building should be 1 5 ft 0 14m per rack For example six cabinets require an inlet grille or transfer duct of 9 ft or 3 x3 0 84m If the ceiling space is not open to the rest of the building a damper or grille of 1 5 ft 0 14m per rack will be required Conditioned space recommended and non condensing environment required Liebert DCR 26 Installation Backup Fan Notes The Backup Fans for each rack will move nominally 800cfm 380 l s of air and are powered from the DCR Control Panel and Fire Suppression System through a factory installed L5 20 receptacle on top of the DCR Top Plenum Challenger If the Liebert DCR is installed in a dedicated room and airflow inlet and outlet openings to the room are not provided the Backup Fans will remove cabinet heat for only a short time 4 13 Install a Second Liebert Challenger 3000 To install a second Liebert Challenger 3000 1 Remove the side access plates on the base and top plenum sections on the end where the redundant Liebert Challenger 3000 will be installed 2 Apply gasket 1 x 1 4 to the side of the DCR Base Plenum Challenger facing the primary Liebert Challenger 3000 3 Install edge guard on the bottom half of the two plenum openings of the DCR Base Plenum Rack 4 Attach the DCR Base Plenum Challenger to the DCR Base Plenum Rac
46. ined and qualified personnel are used Read all instructions before beginning A WARNING Risk of top heavy unit falling over Improper handling can cause equipment damage injury or death Only properly trained and qualified personnel wearing appropriate safety headgear gloves shoes and glasses should attempt to move lift remove packaging from or prepare unit for installation Read all instructions before attempting to move lift remove packaging from or preparing unit for installation 3 Secure the Liebert Challenger 3000 using the four supplied carriage bolts 3 8 16 hex nuts and flat washers see Figure 9 The carriage bolts must be installed in the Liebert Challenger 3000 and then the hex nuts tightened from underneath 13 Liebert DCR Figure9 Secure the Liebert Challenger 3000 to the DCR Base Plenu A A Installation m Challenger Hole in Liebert Challenger 3000 cabinet for carriage bolt Lo 4 5 Setthe DCR Control Panel and Fire Suppression System on the Base Plenum WARNING Risk of handling heavy unit Can cause equipment damage injury or death The DCR Control Panel and Fire Suppression System weighs more than 413lb 187kg If a lifting device is used to move the DCR Control Panel and Fire Suppression System ensure that it is rated to handle its weight If personnel will move the unit manually ensure that an adequate number of personnel are used Only properly trained and qualifie
47. intaining the Liebert DCR Adhere to all warnings cautions and installation operating and safety instructions on the units and in their manuals Only properly trained and qualified personnel should move install operate or service this equipment Required Setup Tools and Equipment The following tools will be needed to set up a Liebert DCR 3 4 19mm open end wrench or socket Ratchet to fit sockets Phillips head screwdriver Flat blade screwdriver Forklift or pallet Jacks Scissors or knife Carpenter s level 3 feet long or longer Heat Load Guidelines NOTICE Risk of exceeding cooling capability Can cause equipment damage A Liebert DCR with a single or redundant Liebert Challenger 3000 is capable of removing 20kW of heat A Liebert DCR with dual cooling units can remove or 36kW of heat Exceeding that heat load limit such as by overloading the cabinets can cause equipment in the cabinets to overheat resulting in equipment damage and voiding warranties A Liebert DCR will accommodate equipment with a combined heat load of 20kW or 36kW depending on the number and configuration of Liebert Challenger 3000 units The load in a single cabinet should not exceed 6kW in a 20kW single or redundant Liebert Challenger 3000 configuration The load should not exceed 7kW 1n a high capacity dual Liebert Challenger 3000 configuration Refer to the values in Table 2 The total system capacity and total rack capacity must not be exc
48. ire suppression section will be flush against the Liebert Challenger 3000 and the end of the DCR Base Plenum Challenger 2 Bolt the DCR Control Panel and Fire Suppression System to the base plenum with the factory supplied 1 4 20 x 3 4 bolts nuts and washers 15 Liebert DCR Installation 4 6 Install the DCR Racks on the Base Plenum One of the DCR Racks will be shipped with two side panels attached The other DCR Racks will ship with one partition panel factory installed on the left side of the rack The panels must be installed as shown in Figure 11 Figure 11 Panel placement in the Liebert DCR one Liebert Challenger 3000 Gasket Gasket Gasket applied in one piece Side Panel V Panel P Panel from top to bottom on the front rail and the rear rails on one Side Removed side of each cabinet Side Panel removed from cabinet at far left Partition Panel attached to side of this rack for installation here i DCR Rack DCR Rack DCR Rack n Gaskets applied around perimeter of each base plenum section each ix DCR Rack plenum section requires four 2 X Figure 12 Panel placement in the Liebert DCR two Liebert Challenger 3000 s Side Gasket Panel Gasket Gasket Gasket Gasket applied in one piece Side Panel Partition Panel Partition Panel Partition Panel from top to bottom on the front Removed rail and the rear rails on one _ side of each cabinet Side Panel removed from cabinet at far left Partition Panel attached to side of
49. k EDU iris dadas A dubi ha kiasa fd 1125 ABleetpieal Sy lei aeu xd dd 4 oo wate dow te oderat ard Cue auch h anb Pana Q Sta e away a 45 12 0 TECHNICAL INSTALLATION ILLUSTRATIONS eee mh hh hh 46 FIGURES Fis rel Liebert DCR COMPOST Botany Sobers ak og Ba ee qaqapas aet is 4 Figure2 Liebert DCR installation sequence for single Liebert Challenger 3000 system 8 Figure3 Liebert DCR installation sequence for system with two Liebert Challenger 3000 s 9 Figure4 Gasket applied to DCR Base Plenum Rack 11 Fistre a Edse suaro metallati 223 eoe dE RO Rd dia M dd edit Rd dq d dd 11 Figure 6 Correct orientation of base plenum sections and required side gaskets 12 pisuje Y Juvehne PlenU iivy ri Er d bue P MB WI ee Se OSE eee weenie RES 12 Figure8 Apply gasket on the DCR Base Plenum Challenger 13 Figure9 Secure the Liebert Challenger 3000 to the DCR Base Plenum Challenger 14 Figure 10 Gasket application location on Liebert Challenger 3000 15 Figure 11 Panel placement in the Liebert DCR one Liebert Challenger 3000 16 Figure 12 Panel placement in the Liebert DCR two Liebert Challenger 3000 less 16 Figure 13 Top gasket location on top of base plenum sections 17 Figure 14 Applying gaskets to the r
50. k with the eight factory supplied screws 5 Levelthe DCR Base Plenum Challenger with the base plenums under the DCR racks and under the system s other Liebert Challenger 3000 6 Apply the factory supplied gasket 1 x 5 8 around the top opening in the DCR Base Plenum Challenger the area where the redundant Liebert Challenger 3000 will sit see Figures 8 NOTE q Take care not to damage the gasket when applying tt and when setting the Liebert Challenger 3000 on the DCR Base Plenum Challenger If the gasket is damaged the cooling unit must be removed and the gasket replaced A damaged gasket will permit cooling air to escape which will reduce cooling efficiency increase energy use and adversely affect fire suppression system operation 7 Use piano jacks or similar lifting devices to place the second Liebert Challenger 3000 on the DCR Base Plenum Challenger The Liebert Challenger 3000 must be aligned with the back and outer edges of the base plenum that will support it Figure 26 Redundant Liebert 3000 pj DCR Control Panel Shell Redundant Challenger Option redundant Liebert Challenger 3000 is installed behind the Primary Liebert DCR Control Panel Challenger Shell MD MN T NM TmT BM OU BP 3000 is B m installed behind the DCR Control Panel and Fire zl Suppression Plenum Challenger System 8 Secure the Liebert Challenger 3000 using the four factory supplied carriage bolts see Figure 9 9 App
51. l Panel and Fire Suppression System int ernal features H E 225A am Load 4 Center Fire Suppression Control Bypass Timer Fire Suppression Tank Gauge LiebertDCR Emergency Power Off Override Timer a Fire Liebert DCR Status LED s visible through grille Suppression Tank 39 Liebert DCR 7 3 7 3 1 DCR Control Panel and Fire Suppression System Overview Fire Detection and Suppression System Operation Overview The DCR Control Panel and Fire Suppression System monitors the air in the Liebert DCR for evidence of combustion If the smoke detector mounted in the top return air plenum senses combustion products the system activates the audible horn and visual strobe on the upper right corner of DCR Control Panel and Fire Suppression System panel see Figure 27 After a 30 second delay the system releases fire suppression agent into the cabinets locks out the Backup Fans and shuts down any connected UPS s and the Liebert Challenger 3000 This sequence may differ if NFPA 2001 is applicable and coordinated with the local fire officials NFPA 2001 authorizes discretion of the owner and local fire officials to leave UPS and cooling systems operational when the system 1s protected by a clean fire suppression agent The DCR Control Panel and Fire Suppression System should be field connected as a separate zone to the building fire detection system Local Emergency Power Off Override
52. ly gasket material 1 x 1 4 to the side of the Challenger that the DCR Control Panel will rest against see Figure 10 10 Use a pallet jack to lift the DCR Control Panel Shell onto the base plenum with the redundant Liebert Challenger 3000 see Figure 2 The redundant DCR Control Panel Shell must be aligned with the front of the base plenum The redundant DCR Control Panel Shell will be flush with the end of the base plenum 27 Liebert DCR Installation 11 Bolt the redundant DCR Control Panel Shell to the base plenum with the six factory supplied 1 4 20x3 4 bolts 12 Apply gasket 1 x 1 4 to the side of the Top Plenum Challenger facing the primary Liebert Challenger 3000 13 Install edge guard on the bottom half of the two plenum openings of the Top Plenum Challenger 14 Apply gasket 1 x 5 8 around the top of the second Liebert Challenger 3000 and the redundant DCR Control Panel Shell 15 Set the DCR Top Plenum Challenger on the top of the second Liebert Challenger 3000 and DCR Control Panel Shell and secure it with six 1 4 20x3 4 bolts NOTE q Take care not to damage the gasket when applying tt and when setting the DCR Top Plenum Challenger on the top of the Liebert Challenger 3000 and DCR Control Panel Shell If the gasket is damaged the cooling unit must be removed and the gasket replaced A damaged gasket will permit cooling air to escape which will reduce cooling efficiency increase energy use and adversel
53. must be installed on a flat level surface for proper assembly and operation Emerson Network Power recommends using shielded cables for all external communication interfaces Ensure that the Liebert DCR has proper ventilation Never block or insert objects into the ventilation holes or other openings Maintain minimum clearances as specified in this manual see 3 1 Clearance Requirements Table 1 and Figure 33 A WARNING Risk of handling heavy unit Can cause equipment damage injury or death Read all instructions before beginning A Risk of top heavy unit falling over Improper handling can cause equipment damage injury or death Only properly trained and qualified personnel wearing appropriate safety headgear gloves shoes and glasses should attempt to move lift remove packaging from or prepare unit for installation Read all instructions before attempting to move lift remove packaging from or preparing unit for installation 1 Liebert DCR Glossary of Symbols 1 0 GLOSSARY OF SYMBOLS Hazardous Voltage Present Note following instructions Consult user manual for additional information Indicates weight Indicates ground connection Indicates alternating current Lieber DCR 2 2 0 2 1 2 2 Introduction INTRODUCTION The Liebert DCR is an Integrated component of the SmartRow offering from Emerson Network Power The system includes a closed loop integrated cooling system and fire s
54. ng Activates Yes No Alarm Relay l Down All Units S238 Clogged Filters Enable Warning Message Ir 5 oo ed an S252 Comp 2 High Pressure Enable Alarm Warnin Water Glycol P 9 Enable Alem Warning _ Configurations S254 Comp 2 Low Pressure Enable Alarm Warnin Only Not Applicable P Enable Alam Warning _ 264 Water Under Floor Enable Alarm Warnin CHEESE Enable Alem Warning _ Water Glycol a5 SumdyUnion Eme Mam Warring SES customerinput Ente Alarm Warning SE Cusomeripu2 Eme Alarm Warning sere Cusomeriui Enable Mam Warning Sus Care Enae Aum Warning seso High Temperature trabe Alam Warning 33 Liebert DCR Liebert COMP Controls Setup 6 3 Additional Settings for 20kW 3 6 Rack Liebert DCR Systems N Cooling These settings apply to a Liebert DCR that has two Liebert Challenger 3000 s Only one cooling unit operates at a time Before making these changes complete the adjustments in 6 2 Liebert COM Setup for all Liebert DCR Types Make these settings in the Liebert COM Service menu System Network Setup gt S803 Teamwork Mode 0 No Standby Settings Lead Lag gt S515 Cascade No Standby Settings Lead Lag gt S503 Rotation Frequency No 6 4 Additional Settings for 20kW Liebert DCR Systems N 1 Cooling These settings apply to a Liebert DCR that has tw
55. ng air to the DCR Racks The steps below detail this general installation procedure Place the plenums in the installation location apply gasket strips to the end facing the DCR Base Plenum Challenger secure them together and level the assembly 1 Apply factory supplied gasket material 1 x 1 4 to the side of the DCR Base Plenum Rack that will face the DCR Base Plenum Challenger see Figure 4 The gaskets are cut to the correct length at the factory The longer pieces have Part 1143928 and the shorter pieces Part 1143926 The gasket strips must be applied so that they form a good seal that will prevent the cooling air from escaping Leaving gaps in the gasket will reduce cooling efficiency increase energy use and adversely affect fire suppression system operation 2 Usea tool to cut holes in the gasket for bolts Finding the holes is easier from inside the plenum Liebert DCR 10 Installation Two pieces of long gasket attach to face on top and bottom Part 1143928 Gasket must be applied to all four sides of the plenum face Peel a corner of facing off the gasket and stick it to the plenum surface Orient the rest of the gasket and apply it in one piece Peel the facing off as required Two pieces of short gasket attach to face one on each end Part 1143926 3 Install edge guard Part 1144478 on the bottom half of the two plenum openings see Figure 5 Figure 5 Edge guard installation
56. num Challenger installs under each Liebert Challenger 3000 and DCR Control Panel and Fire Suppression System DCR Top Plenum Challenger 1installs on each Liebert Challenger 3000 and DCR Control Panel and Fire Suppression System DCR Control Panel and Fire Suppression System consists of the fire detection panel fire suppression system override timers load center fire strobe horn and the power fire control interface Liebert Challenger 3000 5 ton downflow unit specially configured for use in the Liebert DCR DCR Rack Plexiglas front door solid rear door sealed rack design number varies Redundant DCR Control Shell attaches to the second Liebert Challenger 3000 houses the optional redundant load panel Figure1 Liebert DCR components T Backup Fans 4 J Pienum c Top Plenum Challenger Plenums Rack n amp 6 DCR Control Panel and Fire Suppression System and Liebert a Challenger 3000 8 DCR Racks Non Redundant Liebert DCR shown redundant or second 1 3 cooling unit attaches DCR Base Plenums Rack DCR Base Plenum Challenger at this end Liebert DCR 4 Introduction 24 Liebert Challenger 3000 Notes Specially configured for Liebert DCR applications Does not include reheat or humidifier Includes a condensate pump Liebert Challenger 3000 can be factory configured for either top feed or bottom feed for piping electrical feeds this must be specified at time of order
57. o Liebert Challenger 3000 Units Redundant or Dual Cooling Units Assemble the Liebert DCR components for a Liebert DCR with two cooling units in the order below and illustrated in Figure 3 For specific procedures refer to the subsequent sections Prepare components Assemble base plenum sections with gaskets Install Liebert Challenger 3000 with gaskets primary unit if redundant cooling 1s used either end if dual cooling units used Install DCR Control Panel and Fire Suppression System with Liebert Challenger 3000 Install DCR racks with gaskets nstall Liebert Challenger 3000 with gaskets second cooling unit adjacent to last rack Install DCR Control Panel Shell nstall top plenum section on first Liebert Challenger 3000 and DCR Control Panel and Fire Suppression System Install top plenum sections on DCR Racks nstall top plenum section on redundant or second Liebert Challenger 3000 and DCR Control Panel Shell nstall Backup Fans Figure 3 Liebert DCR installation sequence for system with two Liebert Challenger 3000 s DCR Top Backup Fans Plenums Rack install after DCR Top Plenums Rack DCR Top DCR Top Plenum Challenger Ul wt Li L 1 gt Liebert Liebert Challenger Challenger 3000 3000 17 9 and DCR and DCR _ Control Control Panel gt Panel Shell and Fire 18 Suppression System 10 DCR Base DCR Base Plenum Challenger Plenum Challenger DCR Base First DCR Rack Pl
58. o Liebert Challenger 3000 s one operating and one in standby mode Before making these changes complete the adjustments in 6 2 Liebert COM Setup for all Liebert DCR Types These settings allow the cooling units to share the remote 2T rack temperature sensor data when the cooling units are operating or on standby This ensures that the temperature readings from all racks are factored into the cooling capacity calculation CFC Call for Cooling Additionally if the heat load temporarily exceeds the capacity of the Liebert DCR s operating cooling unit the standby unit will be automatically started to assist When one cooling unit can again maintain the load the second unit will return to standby mode cooling and fans Off 1 Make these settings in the Liebert COM Service Menu gt System Network Setup S803 Teamwork Mode 1 S804 Teamwork is based on Maximum NOTE The controlling temperature sensor S102 must be properly selected see 6 2 Liebert COM Setup for all Liebert DCR Types before setting the Teamwork Mode followed by setting Standby and Cascade modes 2 Make these settings in the Liebert iCOM Service Menu gt Standby Settings Lead Lag S502 Number of Standby Units 1 503 Rotation Frequency Every WED schedule for convenient day see Note below S504 Rotate at 09 00 schedule at convenient time see Note below S505 Rotate by 1 NOTE Emerson recommends scheduling the cooling system rota
59. on 3 Findthe DCR rack that has two side panels One rack will have two side panels the remaining racks will have a single partition panel factory installed on the left side of the rack 4 Remove the side panel from the side that will fit against the adjacent rack see Figure 11 The side panels and partition panels must be installed on the DCR Racks as shown in Figure 11 5 Attach the side panel to the side of the rack that will be adjacent to the Liebert Challenger 3000 This rack will be the first one installed 6 Usean adequate number of properly trained and qualified personnel to set the first DCR Rack onto the DCR Base Plenum Rack closest to the Liebert Challenger 3000 see Figures 2 and 6 The side panel installed in Step 5 will be against the Liebert Challenger 3000 The DCR Rack s leveling feet fit into holes in the DCR Base Plenum Rack Removing the rack s front and rear doors will lighten the unit making it easier to maneuver When setting DCR Racks on the base plenum be sure to a Align the front and the rear of the racks b Space the DCR Racks evenly flush with the front plenums and square with the side of each DCR Base Plenum Rack NOTE q Take care not to damage the gasket when applying tt and when setting the DCR Racks on the base plenum If the gasket is damaged the rack must be removed and the gasket replaced A damaged gasket will permit cooling atr to escape which will reduce cooling efficiency incr
60. onfiguration requirements Input power to the Liebert Challenger 3000 must not be connected through the 225A load center in the DCR Control Panel and Fire Suppression System Refer to the Liebert Challenger 3000 user manual that shipped with the unit and 1s available at Liebert s Web site www liebert com For electrical and piping connections the Liebert Challenger 3000 can be top fed bottom fed or a combination of the two Connections are made through the knockouts in the bottom of the Liebert Challenger 3000 electrical panel box For top access power wiring is routed through the Liebert Challenger 3000 top piping chase NOTICE Risk of improper power input Can cause equipment damage or degraded cooling The Liebert Challenger 3000 must be powered separately by a dedicated circuit Power must not be supplied from the 225A panel in part because of potential electrical noise problems Input Power Wiring Alternatives to DCR Control Panel and Fire Suppression System and Rack Equipment The load center located inside the DCR Control Panel and Fire Suppression System requires connection to 120 208V AC 3 phase 5 wire only Two 20A branch breakers are supplied for e DCR Control Panel and Fire Suppression System which in turn powers the Backup Fans Liebert DCR controls The user must supply branch breakers whips and wiring for all rack equipment including optional rack power strips rack UPS s and general connectivity NOTE Th
61. ontrol Panel and Fire Suppression System controls and the Liebert DCR controls to a UPS NOTICE Risk of improper electrical connections Can cause equipment damage The Liebert Challenger 3000 must not be wired to the load center in the DCR Control Panel and Fire Suppression System The compressor operation would introduce electrical noise into the system causing improper operation of the rack equipment Dual Bus Liebert DCR Load Supplied by Utility Power and Single UPS or by Two UPS s 1 Connect utility input power or a UPS to the load center in the DCR Control Panel and Fire Suppression System 2 Connect equipment on Circuit A to output power from the load center panelboard 3 Connect equipment on Circuit B to separate external panelboard fed from a second UPS or utility power 4 Connect Backup Fans in a daisy chain to the connection on top of the DCR Top Plenum Challenger L5 20R 5 Wire Circuit A and Circuit B refer to Figure 36 Routing Power to Rack loads Rack equipment can be powered either with a stand alone UPS or with Rack Mounted UPS s in each rack Either method requires installing whips from the load center in the DCR Control Panel and Fire Suppression System routed to each rack Powering with Stand Alone UPS Stand alone UPS connected to the load center in the DCR Control Panel and Fire Suppression System with whips routed to each DCR rack Optional rack power strips connected to the whips
62. orm a good seal that will prevent the cooling air from escaping Leaving gaps in the gasket will reduce cooling efficiency increase energy use and adversely affect fire suppression system operation 6 Apply factory supplied gasket 1 x 1 4 to the side of the DCR Top Plenum Rack that will face the DCR Base Plenum Challenger 7 Add edge guard to the side of the DCR Top Plenum Rack that will face the primary Liebert Challenger 3000 19 Liebert DCR Installation Figure 17 Gasket application to top of DCR racks Apply gasket strips around the outer edge of the Liebert Challenger 3000 Apply gasket along the side edges of each plenum edge Four pieces are used for each rack o NN Liebert Meus DCR Top DCR Top DCR Top Plenum Plenum Plenum Rack Rack B TOP VIEW Apply a gasket strip between DCR Top Plenum Assembly the Liebert Challenger 3000 Air supply openings not shown and the DCR Control Panel and Fire Suppression System 8 Set the DCR Top Plenum Rack on the DCR Rack next to the Liebert Challenger 3000 9 Attach the DCR Top Plenum Rack to the DCR Rack with the four bolts removed in Step 4 NOTE When attaching additional plenums on top of the DCR Racks be sure to align each of the racks with each other The sections must form a straight line or they cannot be bolted together 10 Punch holes through the gasket on the face of the DCR Top Plenum Rack for the 10 screws that will connect it to the adjacent DCR To
63. p Plenum Rack 11 Insert 10 screws through the holes and into the captive nuts in the adjacent DCR Top Plenum Rack Do not tighten the screws until the DCR Top Plenum Rack assembly 1s fully installed 12 Repeat Steps 5 through 11 for each of the remaining DCR Top Plenums Rack There is one DCR Top Plenum Rack for each DCR Rack 4 9 Installing and Wiring Sensors DCR Return Temperature Thermostat Activates Backup Fans Supply Air Temperature Sensor For supply air temperature control 2T Sensor Sense temperature of each rack for load balancing Smoke Detector Senses combustion products in the return air to activate the fire suppression See Table 9 for Liebert DCR wiring bundle guidelines Liebert DCR 20 Installation 4 9 1 Install DCR Return Temperature Thermostat and the L5 20 Receptacle for the Backup Fans The DCR Return Temperature Thermostat is factory installed in the DCR Top Plenum Challenger The L5 20 receptacle which supplies power for the Backup Fans 1s factory installed on the exterior of the DCR Top Plenum Challenger Wiring for the DCR Return Temperature Thermostat and supply power for the Backup Fans receptacle must be connected for them to function The wiring harness consists of five wires Two for the DCR Top Plenum Thermostat Wiring Bundle 3 Three for the input power for the Backup fans Wiring Bundle 2 The wiring harness is located in the control panel It must be fed through the grommet in
64. pplying it and when setting the Liebert Challenger 3000 on the DCR Base Plenum Challenger If the gasket is damaged the cooling unit must be removed and the gasket replaced A damaged gasket will permit cooling air to escape which will reduce cooling efficiency increase energy use and adversely affect fire suppression system operation Figure8 Apply gasket on the DCR Base Plenum Challenger Apply gasket Part 1144472 along the longer side and apply gasket Part 1143971 along the shorter side DCR Control Panel and Fire Suppression System will sit Attach gasket around the L here opening in the DCR Base Plenum Challenger This is ke EOE where the Liebert 7 m a z Challenger 3000 will sit o e e E Add edge guard to the bottom edges 2 Use pallet jacks or similar lifting device to place the Liebert Challenger 3000 on the DCR Base Plenum Challenger see Figure 2 The Liebert Challenger 3000 must be aligned with the back of the base plenum that will support it the Liebert Challenger 3000 also should be flush with the side of the DCR Base Plenum Challenger A WARNING Risk of handling heavy unit Can cause equipment damage injury or death The Liebert Challenger 3000 weighs more than 5551b 252kg If a lifting device is used to move the Liebert Challenger 3000 ensure that 1t is rated to handle 1ts weight If personnel will move the unit manually ensure that an adequate number of properly tra
65. rature threshold is 80 F The user may reset this threshold once the temperature drops 4 F below the setpoint This threshold operates only off the return air temperature sensor Prevent False High Humidity Alarms Delaying the humidity alarm will prevent false high humidity alarms during a rotation of cooling units The humidity sensor in the standby Liebert Challenger 3000 will report a false high humidity reading because it 1s briefly not 1n an active airstream To delay the alarm make this setting change in Service Menu gt Set Alarms gt 241 High humidity 120 second The default delay 1s 30 seconds The maximum 1s 9 999 seconds 35 Liebert DCR 6 5 6 5 1 Liebert COMP Controls Setup Additional Settings for High Capacity Liebert DCR Systems N Cooling These settings apply to a Liebert DCR that has two Liebert Challenger 3000 s operating at a time The system s cooling capacity 1s 36kW Before making these changes complete the adjustments in 6 2 Liebert ICOM Setup for all Liebert DCR Types Ensure Even Airflow to all Racks During Low Heat Load The compressor in the secondary Liebert Challenger 3000 may shut off if the heat load is low The intent of the setting is to avoid overcooling and undesired dehumidification but it can lead to hot spots in the Liebert DCR This change rotates the designation of primary cooling unit between the cooling units to help balance compressor run hours Additionally these se
66. ression System and secure it with six factory supplied 1 4 20x3 4 bolts NOTE Q Take care not to damage the gasket when applying it and when setting the DCR Top Plenum Challenger on the top of the Liebert Challenger 3000 and DCR Control Panel and Fire Suppression System If the gasket is damaged the cooling unit must be removed and the gasket replaced A damaged gasket will permit cooling air to escape which will reduce cooling efficiency increase energy use and adversely affect fire suppression system operation 3 Tighten the bolts securing the plenum assembly to the racks and to each other There are 14 bolts to tighten in each DCR Top Plenum Rack four bolts in each corner and 10 screws in the face of each plenum section 4 Make sure that all of the DCR Top Plenums Rack are aligned with the front and rear of the racks 5 Make sure that the DCR Top Plenums Challengers are aligned with the sides or ends of rows Liebert DCR 18 Installation 48 Mounting DCR Top Plenum Rack 1 Apply factory supplied gasket material 1 x 1 4 to the side of the DCR Top Plenum Challenger that will face the DCR Racks see Figure 15 The gaskets are cut to the correct length at the factory They must be applied so that they form a good seal that will prevent the cooling air from escaping Leaving gaps in the gasket will reduce cooling efficiency increase energy use and adversely affect fire suppression system operation 2 Use a tool to cut hole
67. rvice representative will conduct final fire suppression system commissioning and arming Before the service representative arrives for commissioning the following must be completed The permanent 120VAC power must be available and On to the DCR Control Panel and Fire Suppression System The building fire alarm must be tied in Alarm Trouble and Supervisory The Liebert Challenger 3000 EPO emergency power off shutdown must be tied in The Liebert DCR must be fully installed and operational including remote emergency power off tie in and timers 37 Lieber DCR DCR Control Panel and Fire Suppression System Overview 7 2 DCR Control Panel and Fire Suppression System Component Locations Figure 27 DCR Control Panel and Fire Suppression System exterior features tud Ano Say ta e tur ci ud aa ag tir at 888888 OO Liebert DCR Horn and Strobe Controls clockwise from top Power Available Green Fire Suppression System Abort Yellow Emergency Power Off Red cover not shown for clarity Manual Fire Suppression c9 A Release Red key operated gt y enlarged view at right CONTROL POWER AVAILABLE FIRE SUPPRESSION FIRE SUPPRESSION Window to view fi re MANUAL RELEASE SYSTEM ABORT system status LED s Der EMERGENCY POWER OFF DCR Control Panel and Fire Suppression System Controls 38 DCR Control Panel and Fire Suppression System Overview Figure 28 DCR Contro
68. s in the bottom plenum Emerson recommends running all rack PDU cables through the top plenum Vary the amount that each Air Flow Adjustment Damper is opened with smaller openings closer to the Liebert Challenger 3000 and progressively larger openings toward the end of the row of DCR Racks After the Liebert DCR is operational the temperature in each DCR Rack must be rechecked with the racks doors closed Failing to check the rack temperature with the doors closed will result in inaccurate readings that may adversely affect cooling Reposition the Air Flow Adjustment Dampers to equalize the cooling in each rack Close the racks doors and recheck the cooling levels this can be done with the 2T sensors that will be connected to the CANbus port on the Liebert iCOM The Liebert ICOM will accommodate up to 10 2T sensors 4 11 Install Backup Fan Assemblies l a Install all Backup Fan assemblies on the DCR Top Plenums Rack refer to Figure 25 Lay the top cover plates in the top of the Top Plenum Rack The plates are sized to permit positioning the fan assemblies to avoid interfering with sprinklers and other structural features Set the Backup Fan assemblies onto the cover plates and bolt each into place with self tapping sheet metal screws 5 16 heads Use the factory supplied self tapping screws to attach the spacer plates to the DCR Top Plenums Rack 2 Repeat Step 1 for each remaining DCR rack Plug the remaining Ba
69. s in the gasket for bolts Finding the holes is easier from inside the plenum Figure 15 Gasket applied to face of DCR Top Plenum Challenger or DCR Top Plenum Rack Two pieces of long gasket attach to face on top and bottom Part 1143930 Gasket must be applied to all four sides of the plenum face Peel a corner of facing off the gasket and stick it to the plenum surface Orient the rest of the gasket and apply it in one piece Peel the Two pieces of short facing off as required gasket attach to face one on each end Part Z 1143931 3 Install edge guard Part 8507k15 on the bottom half of the two openings in the DCR Top Plenum Challenger see Figure 6 4 Remove four bolts from the top of each DCR rack there is one bolt in each corner Retain the bolts for attaching the DCR Top Plenums Rack to the top of the racks Figure 16 Remove bolts from DCR Rack top The gasket should be applied to top aluminum frame piece use Part 1103 542 for the side A extrusions lt The gasket should be applied 4 to top aluminum frame piece nm use Part 1103 543 for the front and rear frame pieces Remove bolts from each corner of each DCR Rack They will be used to secure the DCR Top Plenums Rack to the cabinets 5 Apply factory supplied gasket 1 wide by 5 8 thick around the perimeter of the top aluminum frame piece of each rack see Figure 16 The gasket must be cut to the correct length to f
70. tem See Note 1 Fire Control Panel 15A 120V Field Supplied Field Supplied Field Supplied Technical Installation Illustrations Liebert DCR Control Interface TB1 Control Power 1 Source A 3 gt Source B Optional TB2 System EPO 13 2 i Remote EPO Contact 1 O ps O 2e UPS A Shut Down Remove jumper if used 1 Liebert DCR Control Panel Load Center 3 PH 5 Wire 208 120VAC 225A 30 Pole 2 Refer to Wiring Section of the Liebert DCR user manual for additional component installations DCRELECBD 3 Must be wired in accordance with national and local wiring codes and regulations ENP Supplied and Installed Wiring Field Supplied Powe r Wiring 57 Rev 2 Lieber DCR Technical Installation Illustrations Figure 40 Liebert DCR with rack mounted UPS systems Utility Feed H A Liebert DCR Control Panel and Fire Suppression System See Note 1 Liebert DCR Control Interface TB1 Control Power Fire Control 7 O 2 Panel O 3 4 O gt Source B Optional Optional Field Supplied TB2 System EPO Rack 1 O gt Remote EPO Contact UPS 1 6 Op Optional Field Supplied Op Rack o 27 DB gt UPS B Shut Down UPS 2 28 ESE us NI o id gt UPS C Shut Down Field S lied e A Optional ICI pps O 30 Rack 9 po UPS FX Ro Y Remove jumper if used See Note 2 3 5 E UPS A Shut Down Notes 1 Liebert DCR
71. th all applicable national state and local fire codes An emergency power off EPO switch 1s provided as one means of meeting regulations Additional field supplied connections to the system may be required depending on the applicable regulations the equipment configuration and the user s operational preference The DCR Control Panel and Fire Suppression System has been fully tested and certified at the factory The DCR Control Panel and Fire Suppression System 1s designed to meet all national codes however local fire officials may impose additional requirements Contact your local fire official for further information The DCR Control Panel and Fire Suppression System is shipped with wiring that if required by local fire code must be field connected to the shutdown circuits of the Liebert Challenger 3000 and any connected UPS systems Under NFPA regulations systems protected by a clean fire suppression agent can be left with the UPS and HVAC systems operational at the discretion of the owner and local fire officials The DCR Control Panel and Fire Suppression System should be field connected as a separate zone to the building fire detection and alarm system If the Liebert DCR is installed in a dedicated room an additional strobe and horn may be installed at the entrance to the room Contact your local authorized service representative 1f required DCR Control Panel and Fire Suppression System Commissioning A local qualified se
72. the top of the DCR Control Panel and Fire Suppression System and into the DCR Top Plenum Challenger as shown in Figure 18 Connect wires according to the corresponding terminals on TB3 see Figure 18 NOTE The DCR Return Temperature Thermostat is used to activate the Backup Fans in the event of a high return air temperature 98 F 37 C Figure 18 Wiring DCR Top Plenum Challenger p Grommet Connector Cable Wiring Harness thagy at Wiring Bundle 3 21 Lieber DCR 4 9 2 Connecting the Smoke Detector Installation The Smoke Detector is located in the Top Plenum Challenger It senses combustion products in the return air to activate the fire suppression system The connector cable shown in Figure 18 is shipped in the DCR Control Panel and Fire Suppression System It must be fed through a grommet and into the Top Plenum Challenger Connect the connector cable as shown in Figure 20 Figure 20 Smoke Detector connections Primary Smoke Detector Connector for smoke detector in the non redundant DCR Top Plenum Challenger N Smoke pu ei gt gt Detector Pa el a 3 a 4 to CONNECTION KF T i FOR CONTROL PANEL n Jis A3 ne 1 x Fe E a t Redundant Smoke Detector Connector for smoke detector in the redundant DCR Top Plenum Challenger 4 9 3 Install Supply Air Temperature Sensor e Ez 9 S i Power supply to the L5 20 1 that feed E x the Backup
73. this rack for installation here m Liebert Challenger 3000 Liebert Challenger 3000 DCR Rack DCR Rack DCR Rack DCR Rack Gaskets applied around perimeter of each base plenum section Each E DCR Rack plenum section requires four a Liebert DCR 16 Installation Figure 13 Top gasket location on top of base plenum sections Apply gasket strips around the outer edge of the Liebert Challenger 3000 Apply gasket along the side edges of each plenum edge Four pieces are used for each rack uu M DCR DCR DCR Bottom Bottom Bottom Plenum Plenum Rack Rack TOP VIEW DCR Bottom Plenum Assembly Apply a gasket strip between Air supply openings not shown the Liebert Challenger 3000 and the DCR Control Panel and Fire Suppression System 1 Apply the factory supplied gaskets 1 x 1 4 along the perimeter of the top of the DCR Base Plenum Challenger The base plenum section requires four gaskets as shown in Figure 13 Do not leave any gaps in the gasket Gaps in the gasket will reduce cooling efficiency increase energy use and adversely affect fire suppression system operation 2 Apply gaskets to the top of the DCR Base Plenum Rack adjacent to the Liebert Challenger 3000 The base plenum section requires four gaskets as shown in Figure 13 Do not leave any gaps in the gasket Gaps in the gasket will reduce cooling efficiency increase energy use and adversely affect fire suppression system operati
74. tion to occur at a time the person in charge of the Liebert DCR operation is present S515 Cascade Units Cooling 516 Cascaded Units Delay 3 min S517 Cascaded Units Quick Start 0 min S518 Cascaded Units Control Delay blank 520 Cascaded Units Min Run 5 minutes Liebert DCR 34 Liebert COMP Controls Setup 6 4 1 6 4 2 Prevent High Temperature Threshold from Starting All Liebert Challenger 3000 s The high temperature threshold when enabled will prompt the Liebert iCOM to start all cooling units The function is intended to prevent high temperatures in the Liebert DCR However when the second Liebert Challenger 3000 1s activated by this parameter the cooling unit will remain On until the user manually acknowledges it s activation by pressing the horn button on the Liebert iCOM or over remote monitoring To prevent the high temperature threshold from starting the second Liebert Challenger 3000 go to the Service Menu gt Standby Lead Lag gt 513 Start all Standby units by HT Change the setting to NO NOTE q While this setting is disabled the combination of Teamwork Mode and Cascade settings will achieve the same result see 6 4 Additional Settings for 20RW Liebert DCR Systems N 1 Cooling During thermal overload scenarios the redundant Liebert Challenger 3000 will be activated to provide supplemental cooling and automatically reset when no longer needed NOTE The default high tempe
75. ttings ensure that the temperature readings from all racks are factored into the cooling capacity calculation To rotate the primary and secondary rotation 1 Enter these changes in the Liebert iCOM Service Menu gt System Network Setup S803 Teamwork Mode 1 S804 Teamwork is based on Maximum NOTE The controlling temperature sensor S102 must be properly selected see 6 2 Liebert COM Setup for all Liebert DCR Types prior to setting the Teamwork Mode followed by setting Standby and Cascade modes 2 Enter these changes in the Liebert COM Service Menu gt Standby Settings Lead Lag S502 Number of Standby Units 0 the fans in both Liebert Challenger 3000 s are always running S503 Rotation Frequency Every WED schedule at a convenient time see Note 504 Rotate at 09 00 schedule at a convenient time see Note S505 Rotate by 1 S515 Cascade Units No Teamwork Mode 1 will allow the cooling capacity to Cascade while keeping the fans On constantly Enabling Cascade would force the fans to turn Off which would prevent even distribution of cooling air NOTE Emerson recommends scheduling the cooling system rotation to occur at a time the person in charge of the Liebert DCR operation is present Liebert DCR 36 DCR Control Panel and Fire Suppression System Overview 7 0 DCR CONTROL PANEL AND FIRE SUPPRESSION SYSTEM OVERVIEW 7 1 The Liebert DCR must be installed in compliance wi
76. uppression Assembly 1s a matter of connecting the plenums and cabinets then making electrical and piping connections The Liebert DCR is available in three basic configurations 20kW N 20kW N 1 Redundant Challenger 36kW N High Capacity Dual Challenger Each configuration has different requirements and recommendations for setup and operation Those requirements integral to effective operation of a Liebert DCR The Liebert DCR must be installed in an indoor climate controlled environment The unit will not protect electronic equipment if it 1s installed in an environment subject to extreme temperatures or humidity This manual is to be used in conjunction with existing Liebert product manuals for each component and site specific documentation and drawings User and installation manuals ship with the equipment and are also available at Liebert s Web site www liebert com The Liebert DCR is available as 3 6 rack system capable of removing up to 20kW of heat single Liebert Challenger 3000 8 6 rack system capable of removing up to 20kW of heat redundant Liebert Challenger 3000 5 10 rack system capable of removing up to 36kW of heat dual Liebert Challenger 3000 s Operational Overview The Liebert DCR is an enclosed system to house and cool electronic equipment The DCR racks house the critical IT equipment optional rack power strips and optional rack mounted UPS units Cooling air 1s supplied by an integral
77. ured as stated in this section for the Liebert DCR to operate properly These instructions are applicable Liebert DCR s with single or dual Liebert Challenger 3000 s configured for N or N 1 redundancy and all cooling system types air cooled water glycol and chilled water These configurations must be made on each cooling unit even 1f the units are networked because not all settings are shared Prerequisites System fully assembled according to this document Remote 2T rack temperature sensors installed on the front cold side of each rack and the supply alr temperature sensor s properly located in base plenum f the Liebert DCR has two Liebert Challenger 3000 cooling units verify that they are connected and communicating to each other via an Ethernet switch Liebert iCOM Setup for all Liebert DCR Types Changing settings in the Liebert COM requires entering the controls service password 5010 Make these settings in the Liebert iCOM Service Menu gt Setpoints 102 Temperature Control Sensor Remote Sensor S103 Temperature Setpoint Act Set 65 F this can be adjusted per customer preference S104 Temperature Control Type PI S106 Temp Proportional Integral 25 F 5min NOTE After the rack equipment is loaded and operational if the Liebert DCR system is responding too slowly to heat load changes decrease the Integral time which dampens Liebert iCOM s rate of change Emerson recommends adjusting the
78. y affect fire suppression system operation 16 Move the sampling tube for the Smoke Detector to the opposite side of the top plenum of the second Liebert Challenger 3000 The sampling tube must be in the entrance of the return air to the Liebert Challenger 3000 17 Route the two wires from the DCR Return Temperature Thermostat located in the redundant DCR Top Plenum Challenger through the DCR Top Plenum Racks back over to the primary DCR Top Plenum Challenger Run wires through the grommet located on top of the DCR Control Panel and Fire Suppression panel These wires must be connected to TB2 on Pins 9 and 10 see Figures 18 and 38 18 A 20 foot 6m cable 1s shipped inside the DCR Top Plenum Challenger for the Smoke Detector One end is factory connected to a four pin connector in the Redundant DCR Top Plenum Challenger The other end must be connected to the bottom four pin male connector in the primary DCR Top Plenum Challenger see Figure 18 19 Cut the wire ties for the Supply Air Temperature Sensor and route the wiring down and out the bottom base plate of the redundant Liebert Challenger 3000 and over into the second DCR Base Plenum Rack from the Liebert Challenger 3000 Liebert DCR 28 5 0 5 1 5 2 5 2 1 Power Connections POWER CONNECTIONS Power Connections to Liebert Challenger 3000 Provide input power to the Liebert Challenger 3000 on 1ts own dedicated circuit based on the specific Liebert Challenger 3000 c

Liebert DCR Installation Manual

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