Vertiv Liebert Maintenance Bypass Cabinet Page 19 Installer/User Manual Download | Manualshive

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| Liebert® Maintenance Bypass Cabinet Installer/User Guide |

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Summary of Contents for Liebert Maintenance Bypass Cabinet

Page 1: ...Liebert Maintenance Bypass Cabinet Installer User Guide ...

Page 2: ...r any installation or operational issues with your product check the pertinent section of this manual to see if the issue can be resolved by following outlined procedures For additional assistance visit https www VertivCo com en us support ...

Page 3: ...ntenance Bypass Cabinet 17 6 2 Stationary Mounting 18 7 Cable Installation 21 7 1 Wiring Preparation 21 7 2 Preparing Internal Wiring 21 7 3 Dual Source Configuration 21 7 4 Removing the Cover Plates 23 7 5 REPO Connection 23 7 6 Input and Output Wiring 23 8 Operation 29 8 1 Start Up and Initialization 29 8 2 Shutting Down the UPS 29 8 3 Transferring the System from UPS to Maintenance Bypass Opera...

Page 4: ...Vertiv Liebert Maintenance Bypass Cabinet Installer User Guide 4 ...

Page 5: ...rrect input output and grounded earthed connections to ensure compliance with technical standards and national and local electrical codes Installation instructions and warning notices are located in the Installation section of this manual WARNING To reduce the risk of fire The NMB1x and NMB4x models must be connected to a circuit provided with 100 amperes maximum branch circuit overcurrent protect...

Page 6: ...SYMBOL DESCRIPTION Requests the user to consult the manual Equipment Grounding Conductor On Off Table 1 1 Glossary of Symbols con tinued Vertiv Liebert Maintenance Bypass Cabinet Installer User Guide 6 ...

Page 7: ...s servers network telecom or other sensitive electronic equipment The Maintenance Bypass Cabinet was designed to provide maximum system availability to business critical equipment The Maintenance Bypass Cabinet allows for transfer of connected loads to an alternate power path allowing full isolation of the UPS The UPS can then be turned OFF and removed from service with no interruption of power to...

Page 8: ...Figure 2 1 Front view Vertiv Liebert Maintenance Bypass Cabinet Installer User Guide 8 ...

Page 9: ...Figure 2 2 Rear view without transformer Vertiv Liebert Maintenance Bypass Cabinet Installer User Guide 9 ...

Page 10: ...Figure 2 3 Rear view with transformer Vertiv Liebert Maintenance Bypass Cabinet Installer User Guide 10 ...

Page 11: ...e it provides an alternate path for power to the connected equipment Should the UPS need to be taken out of service for limited maintenance or repair manual activation of the bypass will cause an immediate transfer of the equipment from the UPS inverter to the bypass source The amber lamp illuminated in the Maintenance Bypass Switch compartment indicates bypass is available In this mode of operati...

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Page 13: ... 240 L6 15R2 208 L14 20R 240 30A 120V 1 pole breaker w 1 2 3 4 knockouts L6 15R2 240 20A 120V 1 pole breaker w 1 2 3 4 knockouts 30A 208V 2 pole breaker w 1 2 3 4 knockouts 15A 120V 1 pole breaker w 1 2 3 4 knockouts 20A 208V 2 pole breaker w 1 2 3 4 knockouts 30A 240V 2 pole breaker w 1 2 3 4 knockouts 15A 208V 2 pole breaker w 1 2 3 4 knockouts 20A 240V 2 pole breaker w 1 2 3 4 knockouts 15A 240...

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Page 15: ...perly set up your Maintenance Bypass Cabinet pallet jack 1 2 13 mm wrench torque wrench flat head screwdriver 2 Phillips screwdriver 3 16 5 mm Allen wrench 5 4 Site Preparation When deciding where to locate your Maintenance Bypass Cabinet consider the weight and size of the unit Make sure that the structural integrity of the floor can withstand the weight Refer to the table below for dimensional c...

Page 16: ...Figure 5 1 Clearances Vertiv Liebert Maintenance Bypass Cabinet Installer User Guide 16 ...

Page 17: ... a 1 2 13mm wrench to remove the eight mounting bolts four per bracket from the pallet brackets Remove mounting brackets from the pallet and Maintenance Bypass Cabinet Keep brackets and bolts for future transportation of the cabinet or for securing the cabinet to the floor 3 Remove the metal ramp from the bottom of the pallet rotating it 180 Fit ramp onto opposite side of pallet in slot as shown b...

Page 18: ...added by bolting the mounting brackets used in shipping to the floor For greater stability use a higher grade bolt Refer to the dimensions below when drilling holes for stationary mounting Vertiv Liebert Maintenance Bypass Cabinet Installer User Guide 18 ...

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Page 21: ... Bypass Cabinet is factory configured for single source installations If your installation requires dual source capabilities the cabinet s wiring must be modified 7 3 Dual Source Configuration Modifying the wiring consists of removing the jumpers between TB1 and TB2 as described below 1 Remove cover plates 2 Identify TB1 and TB2 3 Using a 3 16 Allen wrench loosen terminal mounting jumpers between ...

Page 22: ...Figure 7 1 Jumper removal transformer models and non transformer models Figure 7 2 Maintenance Bypass Cabinet with transformer Vertiv Liebert Maintenance Bypass Cabinet Installer User Guide 22 ...

Page 23: ...the Installer User Guide for you Liebert UPS unit for information on connecting the REPO 7 6 Input and Output Wiring NOTE Input wiring must be installed using conduit 208 input voltage jumper if only the connections for 208VAC are made between the UPS and the Maintenance Bypass the 208 input voltage jumper must be installed for proper operation To install this jumper place the jumper wire provided...

Page 24: ... Then connect the wires to the block connections as shown at right Using a torque wrench turn the screws clockwise until tightened to the proper torque value 50 in lb NOTE The Liebert UPS and Maintenance Bypass Cabinet with transformer contain an isolation transformer that generates a neutral conductor for the connected equipment The UPS and Maintenance Bypass with transformer are a separately der...

Page 25: ...Figure 7 4 Electrical connections transformer model MBC Vertiv Liebert Maintenance Bypass Cabinet Installer User Guide 25 ...

Page 26: ...Figure 7 5 Electrical connections non transformer model MBC Vertiv Liebert Maintenance Bypass Cabinet Installer User Guide 26 ...

Page 27: ...L SOURCE FEED If feeding the Maintenance Bypass Cabinet from a dual source the UPS input supply connection must be made to TB1 and the bypass input supply connection must be made to TB2 The jumpers between TB1 and TB2 must be removed 3 If connected equipment is a combination of 208 VAC and 120 VAC use a three phase panel board connected to the output terminal TB6 Vertiv Liebert Maintenance Bypass ...

Page 28: ...UAL SOURCE FEED If feeding the Maintenance Bypass Cabinet from a dual source the UPS input supply connection must be made to TB1 and the bypass input supply connection must be made to TB2 The jumpers between TB1 and TB2 must be removed 3 If connected equipment is a combination of 208 VAC and 120 VAC use a three phase panel board connected to the output terminal TB5 Vertiv Liebert Maintenance Bypas...

Page 29: ... button Close the UPS output circuit breaker On Liebert APS UPS models Close the control enable switch After the UPS has initialized turn the UPS output on by pushing the ON OFF button then press the Enter F5 button to confirm action when prompted on the LCD display Close the UPS output circuit breaker 8 2 Shutting Down the UPS To power down the entire system including connected equipment 1 On Lie...

Page 30: ...hut down for service or was replaced 1 Close the UPS Source Switch SW2 on the Maintenance Bypass Cabinet 2 Close the UPS input circuit breaker 3 On Liebert GXT2 Liebert GXT3 UPS models Close the UPS output circuit breaker Press the ON OFF button On Liebert GXT4 UPS models Close the UPS output circuit breaker Press the UP or DOWN button then press Enter to confirm action On Liebert Nfinity UPS mode...

Page 31: ...nthly Check clean and replace filters Verify that airflow is not obstructed We recommend performing the following maintenance annually Verify all power connections Verify that all output distribution modules are operating properly 9 2 1 Replacing Fan Filters Transformer Models Only The Maintenance Bypass Cabinet intake fans contain filters that will need to be replaced or cleaned periodically depe...

Page 32: ...e reused To wash these filters place them under a running faucet with the dirty side down to remove dirt and dust Blot dry with a towel and allow to air dry before reusing it Vertiv Liebert Maintenance Bypass Cabinet Installer User Guide 32 ...

Page 33: ...9 transformerless model Environmental Operating Temperature max F C 32º 104º 0º 40º Relative Humidity 0 95 non condensing Maximum Operating Altitude Ft M 10 000 3000 Input Data Nominal Input Voltage VAC 208 or 240 Input Frequency nominal Hz 60 Input Frequency Range Hz 55 65 Output Data 208 240 240 208 Output Voltage VAC 120 120 208 240 120 120 240 120 120 208 Transfer Time msec 4 msec typical Outp...

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Page 36: ... logos referred to are trade names trademarks or registered trademarks of their respective owners While every precaution has been taken to ensure accuracyand completeness herein Vertiv Co assumes no responsibility and disclaims allliability for damages resulting from use of this information or for any errors or omissions Specifications are subject to change without notice SL 23960_REV8_11 17 590 1...

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