MPORTANT AFETY NSTRUCTIONS SAVE THESE INSTRUCTIONS This manual contains important instructions that should be closely followed during installation and maintenance of this UPS unit and during the installation and replacement of Power and Battery Modules. This product is designed for Commercial/Industrial use only. This product is not intended for use with life support and other U.S.
LOSSARY OF YMBOLS Risk of electrical shock Indicates caution followed by important instructions AC input AC output Requests the user to consult the manual Indicates the unit contains a valve-regulated lead acid battery Recycle DC voltage Equipment grounding conductor Bonded to ground AC voltage Standby No telecommunication connection...
1.1.1 System Description The Liebert Nfinity Power System is a modular UPS available in 8 & 12 bay frames. It is intended for use with workstations, servers, network, telecom and other sensitive electronic equipment. It pro- vides continuous, high-quality AC power to your equipment, protecting it from any power disturbance due to blackouts, brownouts, surges or noise interference.
Figure 1 Front and back views (12 bay model shown) User Interface Power Module Bays Battery Module Bays Manual Bypass Switch (SW1) Intake Cooling Fans FRONT VIEW with bezels removed Refer to the table below for size and fully populated weight considerations. Table 1 Model 8 bay...
Modes of Operation INPUT FILTER INTERFACE Normal Mode The Power Module rectifiers derive power from a utility AC source and supply regulated DC power to the inverter. The module’s inverter regenerates precise AC power to supply the connected equipment. The battery charger is in the Power Module and maintains a float-charge on the batteries. Backup Mode When AC utility fails, the connected equipment is supplied power by the inverter, which obtains energy from the Battery Modules.
Major Components The following is a general description of each compo- nent and its functions. Please review this section carefully, as it will give you a better understanding as to how the Nfinity operates. 1.3.1 Unit Frame The front of the Nfinity consists of a series of plastic bezels.
1.3.4 Power Module Each power module is an independent 4 kVA, 2.8kW unit, consisting of a power factor corrected recti- fier, battery charger and inverter, with associated monitoring and control circuitry. The modules are paralleled to provide greater capacity and/or redundancy. Modules may be added or replaced on-line with no interruption or danger to the connected equipment.
NSTALLATION Inspection Upon receiving the UPS, examine the packaging for any signs of mishandling or damage. If any dam- age is noted, call your local dealer or Liebert representative and/or notify your carrier. 2.1.1 Environment NOTE Operating in temperatures above 77°F (25°C) will reduce battery life. The UPS environment must be free of conductive contaminants and excessive moisture (water and condensation), flammable vapors, chemical fumes, corrosive gases and liquids.
Unloading 2.2.1 Unloading the UPS CAUTION This UPS is very heavy (see weight in Table 1). At least two people should assist in unloading it from the pallet. 1. Use a ratchet or wrench, 1/2" (13mm), to remove the four mounting bolts from the front and rear pallet brackets.
5. Once the UPS is in the desired location, adjust the leveling feet to secure its position. 2.2.2 Stationary Mounting Additional stability can be added by bolting the mounting brackets (used in shipping) to the floor, as shown below left. Shipping Brackets Used for Stationary Mounting For greater stability, use a higher-grade bolt.
Cable Installation 2.3.1 Wiring Preparation WARNING Please read this section thoroughly before attempting to install wiring to this unit. This UPS should be installed by a qualified / certified electrician. Removing the Cover Plates On the back Remove Cover Plates of the UPS, cover plates are over the...
Input Wiring (TB1) To connect the input wiring, follow these steps: 1. Locate the input wiring access, remove the knockout and pull the three input wires through it, allowing some slack for installation. 2. Secure the conduit to the rear panel of the UPS. 3.
2.3.2 Connecting to External Panel Boards The following instructions are also shipped attached to the rear of the unit. INPUT CABLING AND PROTECTION Table Below Applies to 4-16kVA Scalable Systems: Stand-alone UPS or UPS equipped with a Maintenance Bypass Cabinet Max.
UPS Output Terminal Block (TB3) If connected equipment operates at 210VAC only, use a single-phase panel board connected to the UPS as follows. Setup 1 - 210 VAC Max output current = 76A Grounding Electrode Conductor (Field connection must be made) Connected Equipment Ground If connected equipment operates at 210VAC only or 105VAC only or is a combination of both, use a single-phase...
2.3.3 REPO Connection The Nfinity is equipped with a Remote Emergency Power Off (REPO) connection. NOTE A jumper is factory installed between pins 1 & 2 to disable the Control Switch (SW2). This will prevent the unit from being started during installation. This jumper must be removed in order to start the unit.
COM1 - Relay Contacts Relay contacts are available through a DB-9F communications connector. Contact closure provides the following: These contacts are rated 48 VDC, 1 amp maximum and are compatible with Liebert MultiLink™ software. COM2 - Serial Nfinity is able to communicate via Liebert proprietary protocol. This communication port can be used for serial communication with Liebert MultiLink software.
PERATING NSTRUCTIONS Controls and Indicators 3.1.1 Display Controls The User Interface Module informs you of the status of the UPS and lets you configure the UPS to your own needs or preferences. The module consists of a series of Status LEDs, an LCD display window (four lines of 20 characters each), and buttons for navigation, as displayed below.
Status LED Modes UPS is Off or Initializing UPS is On, Utility is Good and Output is Off UPS is On, Utility is Good and Output is On (Normal Operation) UPS is On, Utility is Bad and Output is On (On Battery Operation) UPS is On, Utility is Bad and Output is Off...
Operating Procedures 3.4.1 Start-Up and Initialization Follow these steps to start up the UPS. 1. Ensure the manual bypass switch is in UPS position. Close Input Circuit Breaker (CB1) and close the Control Enable Switch (SW2). You should see the following on the LCD display window: UPS Initializing Please wait...
Main Menu After initialization, the status of the UPS, review the event log and active alarms, configure your UPS and even receive instructions on replacing modules. The Main Menu is divided into eight sub-menus as shown below: UPS Status UPS Status Present Load Redundant Status Battery Status...
3.5.1 UPS Status Screen From the Main Menu the user may select UPS Status and press the user may access any information on the present condition of the UPS. Note the chart below when reviewing the UPS. Present Load On Mains/Utility Output: kVA xx.x Output: kW xx.x Output: pf xx.x...
Remote Shutdown External Battery Bypass Alarm Mode Intelli-Battery Ca. Air Filter Reminder Guarantee Shutdown Review Settings menu options Service Contact Service Contact Liebert Corp. www.liebert.com Auto Restart Auto Restart Mode: Disable Batt % Delay UPS Shutdown Delay UPS Shutdown Delay...
Page 27
Nfinity. It can be up to seven characters in length. Once set, the password will be required to change the configuration. Set Password xxxxxxx NOTE If the password is lost, call Liebert Technical Support. Operating Instructions...
Page 28
Auto Battery Test: Configure when and how often the Nfinity’s automatic battery test will run. This test is designed to ensure battery system integrity and provide early warning of problems. Auto Battery Test Interval Start Day Start Time Interval Batt Test Interval 1 week * 2 weeks 3 weeks...
Page 29
Service Contact: Set a contact for the user to reach if problems occur. Service Contact >Company Name Company Phone Company Name Company/Name LIEBERT CORP. Phone Number Phone Number WWW.LIEBERT.COM Remote Shutdown: Enables / Disables the Remote Communications Shutdown. If you are using MultiLink™ software, this parameter...
Page 30
Bypass Alarm Mode: Allows the user to enable/dis- able alarm, indicating that the bypass is not quali- fied. Bypass Alarm Mode > Enable Disable Intelli-Battery Ca.: Allows the user to enter the quantity of intelligent battery cabinets installed. Enter Intelli- Battery cabinet count Air Filter Reminder: Allows the user to set a warn-...
UPS Configuration Screen - Service Mode Menu Service Mode contains site identification information about the UPS system. The data is entered by Liebert Global Services (LGS). To view the data, go to the Main Menu, select UPS Configuration and press .
See 4.1 - Active Alarms for a list of events and alarms and possible solutions. If you are unsure of the corrective action to take, contact a Liebert representative at the number listed on the back of this manual.
3.5.7 Module Replacement The user interface also supplies instructions for removing and replacing modules. From the Main Menu, access the module replacement screen and select the type of module. Refer to the screens below: Control Module w/ Redundant Cntl Mod Replacement 1.
3.5.8 Service Tools for Liebert Global Services Engineers The Service Tools option is intended for use by Liebert Global Services engineers or Liebert-trained engineers to carry out certain tests and clear failures. These are advanced menus, entering changes may adversely affect UPS operation. From the Main Menu, shown below left, select Service Tools and...
(amplitude and frequency). Verify that the configuration voltage and frequency settings are properly selected. Transfer Nfinity to manual bypass and call Liebert service for assistance. Reduce the UPS’s load or add battery capacity. If external non-modular battery cabinet(s) are added, verify that the UPS’s configuration is set to match the external battery...
Page 36
• Add a redundant System Control Module so that the load is not dropped. Transfer UPS to manual bypass and contact Liebert Global Services. Verify that the UPS’s bypass source is qualified (amplitude and frequency). Verify that the configuration voltage and frequency settings are properly selected.
Module LED Indication Every Battery, Power and Control Module features two LEDs to help inform the user of the module status, as shown below left. Refer to Table 2 for details. Control Module Power Module Battery Module Table 2 Green Status LED Status Yellow Fault LED (Green)
Module Replacement Follow the instructions below when replacing or adding a Control, Battery or Power Module to the system. To order additional modules, contact your Liebert representative or call 1-800-LIEBERT. 4.3.1 Removing Modules 1. Remove bezel cover of appropriate module.
4.3.2 Adding or Replacing Modules NOTE Power Modules must be installed in the top half of the Nfinity frame. Battery Modules can be installed in any bay of the UPS frame. 1. Lift module to appropriate bay, resting end of module on bay shelf.
5.1.1 Proper Care Keeping your Liebert Nfinity UPS operating properly is imperative to optimal performance and life of the unit. It is recommended that a certified technician perform preventive and corrective mainte- nance. Liebert Global Services (LGS) is dedicated to ensuring the highest level of performance and unmatched support for your Nfinity UPS.
Product Warranty Registration To register for warranty protection: • Visit the Quick Links section of our Web site at: http://www.liebert.com • Click on Product Warranty Registration and fill in the form. If you have any questions, please contact us at:...
™ Power System The Company Behind the Products With over a million installations around the globe, Liebert is the world leader in computer protection systems. Since its founding in 1965, Liebert has developed a complete range of support and protection systems for sensitive electronics: •...
Need help?
Do you have a question about the NfinityTM and is the answer not in the manual?
Questions and answers