Liebert UPS User Manual

ANUAL

English

UPStation GXT™

6 & 10 kVA

208V & 240V

USER M

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.

1. SAVE THESE INSTRUCTIONS. THIS MANUAL CONTAINS IMPORTANT SAFETY INSTRUCTIONS. Read all safety, installation, and operating instructions before installing and operating the Uninterruptible Power System (UPS). Adhere to all warnings on the unit and in this manual. Follow all operating and user instructions. Individuals without previous training can operate this equipment.

2. This product is designed for Commercial/Industrial use only. It is not intended for use with life support and other designated “critical” devices. Maximum load must not exceed that shown on the UPS rating label. The UPS is designed for data processing equipment. If uncertain, consult your dealer. See Limited Warranty.

3. This UPS is designed for use on a properly grounded (earthed), 208-240 VAC, 50Hz or 60Hz supply, for installation by qualified personnel. A qualified electrician must review and approve customer supplied wiring, circuit breakers, intended loads, and verify correct input, output and ground connections to ensure compliance with technical standards and local electrical codes of practice. Installation instructions and warning notices only for use by qualified personnel are located after the UPS operator instructions in this manual.

4. ELECTROMAGNETIC COMPATIBILITY - The GXT 6 & 10 kVA complies with the limits for a Class A digital device, pursuant to Part 15 of FCC rules. These limits provide reasonable protection against harmful interference in a commercial environment. This device generates, uses, and radiates radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operating this device in a residential area is likely to cause harmful interference, which the user must correct at his own expense.

5. Operate the UPS in an indoor environment only in an ambient temperature range of 0°C to +40°C (32°F to +104°F). Install it in a clean environment, free from moisture, flammable liquids, gasses, or corrosive substances.

6. This UPS contains no user serviceable parts. The UPS ON/OFF pushbuttons do not electrically isolate internal parts. Under no circumstances attempt to gain access internally, due to the risk of electric shock or burn. Do not continue to use the UPS if the front panel indications are not in accordance with these operating instructions, or the UPS performance alters in use. Refer all faults to your dealer.

7. Only trained engineers authorized by Liebert should perform troubleshooting. To replace batteries, refer all servicing to qualified service personnel. PROPER DISPOSAL OF BATTERIES IS REQUIRED. REFER TO YOUR LOCAL LAWS AND REGULATIONS FOR DISPOSAL REQUIREMENTS.

8. Never block or insert any object into the ventilation holes or other openings.

9. DO NOT CONNECT equipment that could overload the UPS or demand DC current from the UPS, for example: electric drills, vacuum cleaners, laser printers, hairdryers or any appliance using half wave rectification.

10. Storing magnetic media on top of the UPS may result in data loss or corruption.

11. 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.

GLOSSARY OF SYMBOLS

Indicates AC Input

Indicates AC Output

Indicates Caution: Note the accompanying instruction

Indicates the position of a fuse

Requests the user to consult the manual for additional information

Indicates that the unit contains a valve regulated lead acid battery

INTRODUCTION

Congratulations on your choice of the UPStation GXT™ 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, which may interrupt computer operations, cause data loss, or even damage equipment. The UPStation GXT protects equipment from these disturbances.

The UPStation GXT is an “on-line” UPS that continuously conditions and regulates its output voltage, whether the utility power is present or not. It supplies connected equipment with clean sinewave power. Sensitive electronic equipment operates best from sinewave power. The GXT 6000/10000T-208X, and 240X models have an additional output isolation transformer.

For ease of use, the UPStation GXT contains a light emitting diode (LED) display to indicate either “load percentage” or “battery capacity” depending upon the mode of operation. It also provides self-diagnostics, a combination On/Alarm Silence/Manual Battery Test button, a combination Off/Bypass button, and two levels of alarms when the unit is operating on battery.

The UPStation GXT has an interface port for communications between the UPS and a LAN server or other computer system. This port provides detailed operating information including voltages, currents, and alarm status to the host system when used in conjunction with the SiteNet® 2 software. SiteNet® 2 software can also remotely control UPS operation.

Static Bypass

EMI/RFI

Output Transformer

INPUT

EMI/RFI

Filter

MAJOR COMPONENTS

Rectifier/PFC

Inverter

Filter

GXT 208X, 230X, & 240X models only

OUTPUT

Battery

Charger

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 (PFC) CIRCUIT

In normal operation, the rectifier/power factor correction (PFC) circuit converts utility AC power to regulated DC power for use by the inverter, while ensuring that the wave shape of the input current used by the UPS is near ideal. Extracting this sinewave input current achieves two objectives: the utility power is used as efficiently as possible by the UPS, and the amount of distortion reflected on the utility is reduced. This results in cleaner power being available to other devices in the building not being protected by the UPStation GXT.

INVERTER

In normal operation, the inverter utilizes the DC output of the power factor correction circuit and “inverts” it into precise, regulated sinewave AC power. Upon a utility power failure, the inverter receives its required energy from the battery through the Rectifier / PFC. In both modes of the operation, the UPS inverter is on-line and continuously generating clean, precise, regulated AC output power.

BATTERY CHARGER

The battery charger utilizes energy from the Rectifier / PFC and precisely regulates it to continuously “float” charge the battery system. The battery system charges whenever the UPStation GXT is connected to utility power.

BATTERY

The UPStation GXT employs valve regulated, nonspillable, lead acid batteries. At a typical room temperature (70° F) and with the UPS float charging, the battery system will last many years. Optional external battery cabinets are available to provide extended run times.

STATIC BYPASS

The UPStation GXT provides an alternate path for utility power to the connected load, in the unlikely event of a UPS malfunction. Should the UPS have an overload, over temperature, or UPS failure condition, the UPS automatically transfers the connected load to BYPASS providing the bypass voltage is within specification. BYPASS operation is indicated by an alarm and an illuminated BYPASS LED (other LED’s may be illuminated to indicate any diagnosed problem). The load may also be transferred to BYPASS using the control panel. NOTE: The BYPASS power path does NOT protect the connected equipment from disturbances on the utility supply and its range of operation is limited to +/17% of the nominal input supply voltage.

AUTO RE-START

Upon restoration of the utility AC power after a utility power outage and complete battery discharge, the UPS will automatically restart and supply power to the critical load and the battery charger will automatically recharge the battery.

INSTALLATION

These instructions are for use by competent personnel only.

INSTALLATION CONSIDERATIONS

Detailed instructions to help you install the UPS are provided in the following pages; however, you should give some consideration to the proposed environment in which the UPS is to be installed, and carry out some preparatory work.

UNPACKING AND INSPECTION

Follow unloading instructions printed on the carton. Do not discard any packaging until installation is complete, check that you have removed to a safe place the user manual, stabilizing brackets, and any other items shipped with the unit to be used in its installation.

CAUTION: GXT6000 UPS weighs up to 173kg (381lbs) and the GXT10000 UPS weighs up to 287kg (633lbs). Use adequate handling aids when moving or installing the UPS. The UPS is fitted with castor wheels for easy movement. Take care when the UPS is removed from its packing and being wheeled across an uneven floor without the stabilizers fitted, that it does not tip over.

Before you install the UPS, give it a thorough visual examination to ensure it has not been subjected to shipping damage. If it is not in perfect condition, you should advise both the shipper and the supplier immediately. DO NOT ATTEMPT TO INSTALL A DAMAGED UPS.

IMPORTANT - Check the UPS rating plate that the UPS is suitable for operation on your UTILITY voltage and load voltage requirements before installing.

LOCATION

Locate the UPStation GXT indoors in a controlled environment, where it cannot be accidentally disconnected. Locate it in an area with unrestricted airflow, away from water, flammable liquids, gases, corrosives, or conductive contaminants.

Air vents are located at the front and the rear of the UPS. Do not position the UPS in an enclosed space where airflow is restricted. Allow at least 150mm (6 inches) free space around the UPS, with a minimum of 300mm (12 inches) at the back to enable easy operator access to the rear panel mounted input/output/battery circuit breakers.

Electrical maintenance/servicing requires access to all four sides of the UPS, provide the necessary free space or use a flexible wiring system to allow the UPS to be pulled forward.

Maintain an ambient temperature range of 0 - +40° centigrade (32-104° F) NOTE- UPS operation in temperatures above 25°C (77°F) reduces battery life.

Model AIRFLOW DISSIPATION*

OUTPUT

RATING**

# Cfm m3h Watts K Btu/hr VA Watts GXT6000T 130 221 504 1.7 6000 4200 GXT10000T 270 459 840 2.8 10000 7000

* Increase dissipation 25% for 208X, and 240X transformer models. ** Decrease output rating 10% for 208 and 208X model.

ELECTRICAL INSTALLATION CONSIDERATIONS

This UPS must be installed by competent electrical personnel and wired in accordance with local/national electrical codes.

The following information is provided for your guidance. On start-up, the UPS will take a half cycle inrush current of up to 3 times the

rated current. This must be taken into account when selecting the overload protection device at the input Utility supply distribution point. To avoid random tripping on start-up, we recommend that the input Utility supply be protected with an MCB capable of withstanding this initial inrush.

The utility input supply cable must be connected to the UPS via a wall mounted double pole circuit breaker, rated to carry the input current and be capable of breaking the maximum prospective short circuit current of this branch circuit. The breaker is to be mounted within six feet of the UPS and be readily accessible to the operator.

ELECTRICAL CONNECTIONS

The UPS is supplied with an input/output/battery terminal block assembly on the rear of the UPS within a cable box. (see outline drawing) The cable box (gland plate) can be removed to enable knockouts to be removed, or new holes drilled, to secure the cables.

The cable sizes and distribution methods used during installation are subject to local/national electrical codes of practice, and therefore are not detailed here. The following tables detail the standard current ratings. The UPS rating plate gives details of the current ratings for alternative output voltages.

The terminals will accept wire sizes up to the values below: GXT6000 = 8 AWG Recommended for all GXT6000 wiring.

GXT10000 = 6 AWG Recommended for all GXT10000 wiring.

(75°C copper wire) Terminal tightening torque is 35 in-lb.

Connecting the UPS Power cables

Power cables connect to screw terminals on a terminal block that is located behind the rear mounted cable box (see figure). Permanent wiring must be routed to the cable box using appropriate materials as required by local codes.

Connection of optional remote battery cabinets

Full installation instructions are provided with these cabinets. Safety/EMC certification limits the use of these terminals to Liebert supplied options.

Properly grounded (earthed) equipment provide multiple benefits

High quality ground (earth) connections are required for the equipment ground conductors (protective earth) and grounding electrode conductor (power system earth connection) to reduce electrical noise and provide for safe operation of the UPS and connected loads. Conduit used alone without a grounding conductor wire is not an acceptable connection. Size ground (protective earth) conductors equal to circuit conductors.

GXT6000T / 10000T - 208 UPS ONLY

NOTE 5

NOTE 6

208

Models whose part number ends with a “208” are NOT fitted with an isolating output transformer and are NOT separately derived sources under the NEC. The output L1 terminal is connected to the input L1 terminal and must not be connected to ground at the UPS (see NEC 250-5d, 250-26, 250.91, 250.92).

GXT6000T-208 CONNECTIONS

CONNECTION

INPUT 28 AMPS 8 AWG (10 mm²) 40 AMPS

OUTPUT 26 AMPS 8 AWG (10 mm²)

BATTERY 23 AMPS 8 AWG (10 mm²)

SIZE GROUNDING (PROTECTIVE EARTH) CONDUCTORS EQUAL TO CIRCUIT CONDUCTORS

CURRENT

RATING

GXT10000T-208 CONNECTIONS

CONNECTION

INPUT 45 AMPS 6AWG (16 mm²) 60 AMPS

OUTPUT 43 AMPS 6AWG (16 mm²)

BATTERY 37 AMPS 6AWG (16 mm²)

SIZE GROUNDING (PROTECTIVE EARTH) CONDUCTORS EQUAL TO CIRCUIT CONDUCTORS

CURRENT

RATING

INPUT

UTILITY

L1 L2

NOTE 4

INPUT TO UPS

NOTE 1

Recommended

Wire Size

Recommended

Wire Size

OUTPUT

L1 L2 + -

OUTPUT TO LOAD

NOTE 2

Recommended External Overcurrent Protection

Recommended External

Overcurrent Protection

OPTIONAL

BATTERY

OPTIONAL

BATTERIES

NOTE 3

NOTES FOR GXT6000T / 10000T - 208 UPS ONLY

1. The installer must provide circuit breaker protection according to local codes. The UTILITY disconnect must be within sight of the UPS. Maintain service space around the UPS or use flexible conduit.

2. The installer must provide output distribution panels and circuit breaker protection according to local codes. Output circuits must not share a common conduit with input circuits or any other wiring.

3. Refer to the manual provided with any optional battery cabinets.

4. This unit does NOT contain an isolating transformer. It is NOT a separately derived source. System grounding is provided at the UTILITY. Do not connect any output circuit conductor to ground at the UPS.

5. The UTILITY may be derived from a single-phase or three-phase source. The line to ground voltages are dependant upon the grounding of the UTILITY. Do not use a floating AC source.

6. Output L1 is connected directly to the Input L1. The line-ground voltages will match the input line-ground voltages.

GXT6000T / 10000T - 208X UPS ONLY

208

120

240

NOTE 5

NOTE 6

208

Models whose part number ends with a “208X” are fitted with a single-phase isolating output transformer and are separately derived sources. The output neutral is already bonded to ground on the output terminals with a Bonding Jumper (see NEC 250-5d, 250-26, 250.91, 250.92). The output L1 and L2 terminals are not connected to the input L1 and L2.

GXT6000T-208X CONNECTIONS

CONNECTION

INPUT 28 AMPS 8 AWG (10 mm²) 40 AMPS OUTPUT @ 208V 26 AMPS 8 AWG (10 mm²) OUTPUT @ 120V 45 AMPS 8 AWG (10 mm²)

BATTERY 33 AMPS 8 AWG (10 mm²)

SIZE GROUNDING (PROTECTIVE EARTH) CONDUCTORS EQUAL TO CIRCUIT CONDUCTORS

CURRENT

RATING

GXT10000T-208X CONNECTIONS

CONNECTION

INPUT 45 AMPS 6AWG (16 mm²) 60 AMPS OUTPUT @ 208V 43 AMPS 6AWG (16 mm²) OUTPUT @ 120V 75 AMPS 6AWG (16 mm²)

BATTERY 39 AMPS 6AWG (16 mm²)

SIZE GROUNDING (PROTECTIVE EARTH) CONDUCTORS EQUAL TO CIRCUIT CONDUCTORS

CURRENT

RATING

INPUT

UTILITY

L1 L2

NOTE 4

INPUT TO UPS

NOTE 1

Recommended

Wire Size

Recommended

Wire Size

OUTPUT

N L1 L2 L

OUTPUT TO LOAD

NOTE 2

Recommended External

Overcurrent Protection

Recommended External

Overcurrent Protection

OPTIONAL

BATTERY

+ -

OPTIONAL

BATTERIES

NOTE 3

Grounding Electrode System

or Protective Earth System

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