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POWER AVAILABILITY
Nfinity Power System
USER MANUAL
208/240V
60Hz
12 to 20 kVA
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TABLE OF CONTENTS IMPORTANT SAFETY INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 GLOSSARY OF SYMBOLS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 1.0 INTRODUCTION 1.1 General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.1.1 System Description. . . . . . . . . . . . . . . . . . . .
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3.5 Main Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 3.5.1 UPS Status Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 3.5.2 UPS Configuration Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 3.5.3 Display Date/Time . . . . . . . . . . . . . . . . . . . . . . .
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IMPORTANT SAFETY INSTRUCTIONS 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. FDA-designated critical devices. Maximum load must not exceed that shown on the UPS rating label. WARNING
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GLOSSARY OF SYMBOLS Risk of electrical shock Indicates caution followed by important instructions AC input AC output Requests the user to consult the manual i Indicates the unit contains a valve-regulated lead acid battery Recycle DC voltage Equipment grounding conductor Bonded to ground AC voltage OFF ON Standby No telecommunication connection Locked position Unlocked position Contact closure signals Serial communications 2
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Introduction 1.0 INTRODUCTION 1.1 General Description Congratulations on your purchase of Lieberts Nfinity Uninterruptible Power System. As with every other Liebert product, we stand behind our quality. If you have any questions concerning this UPS, please feel free to contact your local dealer or Liebert representative or call the appropriate Technical Support number listed on the back of this manual. To ensure proper installation and operation of this unit, please read this manual thorou
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Introduction Figure 1 Front and back views Control REPO Intellislot User Interface Switch (SW2) Connection Communications Ports ! ESC DB-9 Communication Ports Power Module Bays Battery Module Bays Output Power Terminal 208/240 Jumper Input Power Terminal Input Earth Manual Terminal Bypass Switch (SW1) Intake Cooling Fans External Battery Connection FRONT VIEW BACK VIEW with bezels with access removed plates removed Refer to the table below for size and fully populated weight consid
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Introduction 1.2 Modes of Operation INPUT OUTPUT MANUAL BYPASS OUTPUT & EMI POWER OUTPUT BYPASS FILTER MODULE(S) TRANSFORMER CONTACTOR BATTERY MODULE(S) SYSTEM USER CONTROL CONTROL INTERFACE INTERFACE MODULE(S) POWER COMMUNICATIONS CONTROL Normal Mode The Power Module rectifiers derive power from a utility AC source and supply regulated DC power to the inverter. The modules inverter regenerates precise AC power to supply the connected equipment. The battery charger is in the Power Module and
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Introduction 1.3 Major Components Nfinitys frame with bezels removed 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. By grasping these bezels from the left and right sides and pulling straight out, you can remove the bezel to reveal the Battery / Power Module bays. T
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Introduction 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. 1.3.5 Battery Module Each battery module contains 10 individual 12-volt, 9 amp hour, valve-regulated (VR
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Installation 2.0 INSTALLATION 2.1 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.
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Installation 2.2 Unloading 2.2.1 Unloading the UPS 2. Remove the metal ramp from the bottom of CAUTION ! the UPS. This UPS is very heavy (see weight in Table 1). At least two people should Pull ramp out from assist in unloading it from the pallet. under front of unit, then turn ramp over 3. Fit the ramp flange in the slot in the rear of the pallet (back of unit) as shown below. Fit ramp in rear of pallet 1. Use a ratchet or wrench, 1/2" (13mm), to 4. Using two people, slowly move the UPS
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Installation 5. Once the UPS is in the desired location, adjust the leveling feet to secure its position. 1/2" (13mm) 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 Optional Stationary for Stationary Mounting Mounting Dimensions 4.75" 4.75" (120mm) (120mm) 28" (711mm) 5/16" (7.94mm) diameter - in six places For greater stability, use a higher-grade bolt. Refer to the di
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Installation 2.3 Cable Installation 2.3.1 Wiring Preparation Customer-Provided Overcurrent Protection A branch rated overcurrent protection device (cir- WARNING cuit breaker or fused disconnect switch) must be ! Please read this section thoroughly installed for the AC input. before attempting to install wiring to If the start-up is on bypass, the UPS has a six- this unit. cycle inrush current that is up to 20 times the This UPS should be installed by a rated output current. This must be tak
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Installation 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. Input Power cables connect to screw terminals on the Input Terminal Block located to the right of the Bypass Voltage Terminal. Connect the wires to the block connections as shown below. Using a torque wrench, turn the scr
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Installation 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 12-20kVA Scalable Systems: Stand-alone UPS or UPS equipped with a Maintenance Bypass Cabinet (Without Transformer) Input Voltage 208VAC Input Voltage 240VAC Recommended Recommended Max. Current Max. Current Max. System Input Protection Input Protection in UPS mode in UPS mode Load Rating Circuit Breaker Circui
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Installation OUTPUT CABLING UPS Output Terminal Block (TB3) Connection to External Panel Boards 208 VAC If connected equipment operates at 208VAC only, use a single-phase panel board connected to the UPS as follows. Setup 1 - 208 VAC Panel Board Input UPS Output TB3 Max output current = 96A 1 1 2 L 2 L 208 208 3 L 3 L 4 4 5 GEC 5 GEC Grounding Electrode Conductor Grounding Electrode Conductor (Field connection must be made) (Field connection must be made) G C Connected Equipment onnected Equipm
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Installation 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. Figure 2 REPO switch connections Hanger for cable-tie to strain relief REPO wiring REPO switch on rear of unit REPO jumper REPO connections REPO connections connected f
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Installation 2.4 Communications 2.4.1 COM Ports Pin Assignment Nfinity is able to communicate through multiple communication ports simultaneously. Use only Liebert-provided communication 54 3 2 1 cards. Connect only Signal Edge Low Voltage (SELV)/Class 2 cir- cuits when connecting to any communication port. There are two DB-9 COM ports available on the rear of the Nfinity. 9 8 7 6 COM1 - Relay Contacts Relay contacts are available through a DB-9F communications connector. Contact closure prov
