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DISCONTINUED
PRODUCT
AC Power Systems
For Business-Critical Continuity™
® ™
Liebert GXT2U
User Manual - 208V, 2700VA
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DISCONTINUED PRODUCT
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TABLE OF CONTENTS IMPORTANT SAFETY INSTRUCTIONS. . . . . . . . . . . . . . . . . . . . . 1 GLOSSARY OF SYMBOLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 MAJOR COMPONENTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Transient Voltage Surge Suppression and EMI/RFI Filters . . . 5 Rectifier/Power Factor Correction (PFC) Circuit . . . . . . . . . . . . 5 Inverter. . . . . . . . .
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OPERATING INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Normal Mode Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Bypass Mode Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Battery Mode Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Battery Recharge Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 COMMUNICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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IMPORTANT SAFETY INSTRUCTIONS WARNING ! Opening or removing the cover may expose you to lethal voltages within this unit even when it is apparently not operating and the input wiring is disconnected from the electrical source. Observe all cautions and warnings in this manual. Failure to do so MAY result in serious injury or death. Refer all UPS and battery service to qualified service personnel. Do not attempt to service this product yourself. Never work alone. SAVE THESE INSTRUCTIONS This
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DO NOT CONNECT equipment that could overload the UPS or demand half- wave rectification from the UPS, for example: electric drills, vacuum cleaners, laser printers or hairdryers. Storing magnetic media on top of the UPS may result in data loss or corruption. Turn the UPS off and isolate the UPS before cleaning; use only a soft cloth, never liquid or aerosol cleaners. Keep the front and rear vents free of dust accumulation that could restrict airflow. When replacing batteries, replace with th
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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 ON Standby DISCONTINUED 3 PRODUCT
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INTRODUCTION Congratulations on your choice of the Liebert GXT2U™ Uninterruptible Power System (UPS). It provides conditioned power to microcomputers and other sensitive electronic equipment. Upon generation, AC power is clean and stable. However, during transmission and distribution it may be subject to voltage sags, spikes, or complete power failure that may interrupt computer operations, cause data loss, or even damage equipment. The Liebert GXT2U protects equipment from these disturban
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MAJOR COMPONENTS Input Output Dynamic Bypass TVSS & Rectifier L1 EMI/RFI Inverter L1 /PFC Filters DC to DC Converter Battery Battery Charger L2 L2 G G Transient Voltage Surge Suppression and EMI/RFI Filters These UPS components provide surge protection and filter both electromagnetic interference (EMI) and radio frequency interference (RFI). They minimize any surges or interference present in the utility line and keep the sensitive equipment protected. Rectifier/Power Factor Correction (P
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DC-to-DC Converter The DC-to-DC converter utilizes energy from the battery system and raises the DC voltage to the optimum operating voltage for the inverter. This allows the inverter to operate continuously at its optimum efficiency and voltage, thus increasing reliability. Battery The Liebert GXT2U utilizes valve-regulated, nonspillable lead acid batteries. To maintain battery design life, operate the UPS in an ambient temperature of 68°F to 77°F (20°C to 25°C). Optional external battery
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Liebert GXT2U—Rear View Liebert ® IntelliSlot DB-9 Port Communications Port Cooling Fans AC Input (L6-20) Input Circuit External Breaker Battery (20 amp) Connector Output Receptacle (L6-20R) Support Base Output Receptacles (L6-15R) DISCONTINUED 7 PRODUCT
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INSTALLATION Preparation 1. Visually inspect the UPS for freight damage. Report damage to the carrier and your local dealer or Liebert representative. CAUTION ! The UPS is heavy (see Specifications section). Take proper precautions when lifting or moving it. 2. Decide where to place the Liebert GXT2U. Install the UPS indoors in a con- trolled environment, where it cannot be accidentally turned off. Place it in an area of unrestricted airflow around the unit, away from water, flamma- ble liqui
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UPStation GXT –+ AC INPUT BATTERY UPS ON BYPASS Rack-Mount UPS Conversion and Installation NOTE When rack mounted, the UPS must be supported by a shelf, brackets or slide rails on each side. The rack mount handles WILL NOT support the weight of the UPS. They are used to move the UPS into and out of the rack. 1. For slide rail installations, first remove the top/side fin. Slide the top/side fin forward, then lift it up to remove. If desired, install the optional rack mount handles that were s
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Install rear member of each M5 screws bracket assembly into rack enclo- Front rack sure with two (2) M5 screws pro- mounting rails vided in this kit. (See figure at right.) Return flanges on bracket assembly fit to the inside of rack mounting rails. Insert screws loosely (finger-tight) into top and bottom holes of return flange on rear member. Extend bracket assembly by sliding front mem- Rear rack ber forward until it touches the mounting front rack mounting rail. Insert rails two
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6. Open grease packet provided Apply in this kit. Apply a 1" long grease bead of grease four (4) places UPS or inside the bottom, curved battery tracks of front members as cabinet shown at right. The grease will allow the equipment to slide into the bracket assem- blies more easily. Apply grease (inside) CAUTION ! Lifting equipment into rack may be a two-person job, depending on weight of equipment. See equipment’s user manual. 7. Insert the equipment, with inner members attached f
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9. To orient the display for horizontal Vertical Horizontal viewing, remove the front plastic overlay overlay bezel by pulling forward evenly on for both sides. The unit has two front tower panel overlays. Remove the outer UPS overlay (used for tower installation). This reveals a horizontally oriented front panel overlay for rack mount- ing. Snap the front bezel back into place. 10.Once the UPS is installed in the rack, the load may be connected. Ensure the load equipment is turned of
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4. Use the enclosed support bases for the tower option to prevent tip-over. One additional set of support base extensions ships with each external battery cabinet. 5. Connect the supplied external battery cabi- net cable to the rear of the external battery cabinet, then to the rear of the UPS. 6. Turn ON the battery breaker on the rear of the external battery cabinet. 7. The UPS is now equipped with additional backup battery run time. For approximate battery run times, refer to the Batter
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CONTROLS AND INDICATORS All LEDs illuminated for illustrative purposes only. ON/Alarm Silence/Manual Battery Test Button This button controls output power to connected load(s) and has three functions: • ON • Alarm Silence • Manual Battery Test ON - Pressing this button will start up the UPS in order to provide conditioned and protected power. Alarm Silence - To silence alarms, press this button for at least one second. After the alarm is silenced, the Liebert GXT2U will reactivate the alarm
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Standby/Manual Bypass Button This button controls output power to connected load(s) and has dual functions: Standby and Manual Bypass. CAUTION ! While the UPS is in Normal Mode operation, pressing the Standby/ Manual Bypass button once will put the UPS into Bypass Mode. Once the UPS is in Bypass Mode operation, press the Standby/ Manual Bypass button two distinct times (for about one second each time) to turn off the UPS. Perform all necessary shutdown procedures on connected loads before t
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Output Voltage Selection The Output Voltage is user configurable and is designed to allow selecting or changing the desired output voltage to match the utility via the Liebert GXT2U Configuration Program provided with the UPS. The settings to choose from are 200, 208, 220, 230, and 240 VAC output. The factory default setting is 208 VAC. CAUTION ! Never change the voltage settings while the UPS is ON and powering connected loads. NOTE Setting output voltage to 200 VAC will cause the UPS unit
