APC SUA3000I 3000VA Smart-UPS User Manual

June 15, 2024
APC

APC SUA3000I 3000VA Smart-UPS

APC Smart-UPS

  • 2200/3000 VA
  • 100/120/230 VAC
  • Tower
  • Uninterruptible Power Supply
  • 990-1674C
  • 12/20005

Introduction

About this UPS

  • The APC Uninterruptible Power Supply (UPS) is designed to prevent utility power blackouts, brownouts, sags, and surges from reaching your electronic equipment. The uninterruptible power supply (UPS) filters small utility line fluctuations and isolates your electronic equipment from large disturbances by internally disconnecting from the utility line.
  • The UPS provides continuous power from the internal battery until utility power returns to safe levels or the battery is fully discharged.

Installation

Unpack

  • Read the Safety Guide before installing the UPS.
  • Inspect the UPS upon receipt. Notify the carrier and dealer if there is damage. The packaging is recyclable; save it for reuse or dispose of it properly. Check the package contents:

UPS:

  • EPO connector
  • UPS literature kit containing:
    • Product Documentation
    • Safety information
    • Warranty information

120/230 V models:

  • UPS literature kit additional contents:
    • Smart-UPS® User Manuals CD
    • PowerChute® CD
    • Serial and USB communication cables

230V models:

  • UPS literature kit additional contents:
    • Input power cord
    • Alternate input power cord (UK customers)
    • Utility connector plug
    • IEC jumper cables

Position the UPS in the Specified Environment

  • The UPS is heavy. Select a location sturdy enough to handle the weight.
  • Do not operate the UPS where there is excessive dust or the temperature or humidity are outside the specified limits:

APC-SUA3000I-3000VA-Smart-UPS \(1\)

Connect the Battery Module

Insert the battery connector into the battery jack and push firmly, twice. You will feel a snap as the connector partially engages the jack. Push firmly a second time. You will feel a second snap as the connector securely seats in the battery jack.

APC-SUA3000I-3000VA-Smart-UPS \(2\)

Start-Up

Connect Equipment and Power to the UPS

  1. The UPS features a transient voltage surge-suppression (TVSS) screw located on the rear panel, for connecting the ground lead on surge suppression devices such as telephone and network line protectors.
    Prior to connecting the grounding cable, ensure that the UPS is NOT connected to utility or battery power.

  2. Connect equipment to the UPS.

  3. Add optional accessories to the Smart-Slot.

  4. Plug the UPS into a two-pole, three-wire, grounded receptacle only. Avoid using extension cords.

    • 230 V models: The utility power cord is supplied in the UPS literature kit. Before connecting the utility power, connect the ground lead (optional) to the TVSS screw.
  5. 120 V models: Check the SITE WIRING FAULT LED located on the rear panel. It will be illuminated if the UPS is plugged into an improperly wired utility power outlet, (see Troubleshooting).

  6. Turn on all connected equipment. To use the UPS as a master on/off switch. Be sure all connected equipment is switched on.

Rear Panels
  • 100/120 VAC 2200 VA
  • 100/120 VAC 3000 VA
  • 230 VAC 2200/3000 VA

APC-SUA3000I-3000VA-Smart-UPS \(5\)

Start the UPS

  1. Press the button on the front panel to start the UPS.
    • The battery charges to 90% capacity during the first four hours of normal operation. Do not expect full battery run capability during this initial charge period.
    • Refer to the APC Web site, www.apc.com for battery runtimes.
  2. For optimal computer system security, install PowerChute Smart-UPS monitoring software.
Connect the UPS to the Network

(if Applicable)

Communication Ports

  • 120/230 V models: Use only the supplied cable to connect to the serial port. A standard serial interface cable is incompatible with the UPS.
  • 100 V models: Users may purchase software and cables as an accessory to the UPS. Refer to the APC website, www.apc.com for information on accessories.
  • Serial and USB ports cannot be used simultaneously.

Emergency Power Off

The emergency power off (EPO) feature is user-configurable. EPO provides immediate de-energizing of connected equipment from a remote location, without switching to battery operation.

  1. Use the EPO connector supplied with the UPS.
  2. Use a normally open contact to connect the +24 terminal to the IN terminal.
  3. Wire the four-pin connector to the EPO system.

EPO PORT

(located on the rear panel)

EPO Connector

The EPO interface is a Safety Extra Low Voltage (SELV) circuit. Connect it only to other SELV circuits. The EPO interface monitors circuits that have no determined voltage potential. Such closure circuits may be provided by a switch or relay properly isolated from the utility. To avoid damage to the UPS, do not connect the EPO interface to any circuit other than a closure-type circuit.

Use one of the following cable types to connect the UPS to the EPO switch.

  • CL2: Class 2 cable for general use.
  • CL2P: Plenum cable for use in ducts, plenums, and other spaces used for environmental air.
  • CL2R: Riser cable for use in a vertical run in a floor-to-floor shaft.
  • CLEX: Limited use cable for use in dwellings and for use in raceways.
  • For installation in Canada: Use only CSA certified, type ELC, (extra-low voltage control cable).
  • For installation in other countries: Use standard low-voltage cable per national and local regulations.

Operation

Display Panels

APC-SUA3000I-3000VA-Smart-UPS \(10\)

Display Panel Indicators and Function Buttons

Indicator LED| ****

Indicator Title

| ****

Description

---|---|---
| On-Line| The UPS is supplying utility power to the connected equipment, (see Troubleshooting ).
| AVR Trim| The UPS is compensating for a high utility voltage.
| AVR Boost| The UPS is compensating for a low utility voltage.
| On Battery| The UPS is supplying battery power to the connected equipment.
| Overload| The connected equipment is drawing more than the UPS power rating allows, (see Troubleshooting ).
| Replace Battery/Battery Disconnected| The battery is disconnected or must be replaced, (see Troubleshooting ).

__

__

Battery Charge

| Diagnostic Utility Voltage| The UPS has a diagnostic feature that indicates the utility voltage.

The UPS starts a self-test as part of this procedure. The self-test does not affect the voltage display.

Press and hold the button to view the utility voltage bar graph indicator.

After a few seconds, this five-LED Battery Charge indicator on the right of the display panel will show the utility input voltage.

Refer to the figure on the left for the voltage reading, (values are not listed on the UPS).

The indicator on the UPS shows the voltage is between the displayed value on the list and the next higher value, (see Troubleshooting ).

---|---|---

Feature Button| __

Feature Title

| __

Function

---|---|---
| Power On| Press this button to turn on the UPS. Continue reading for additional capabilities.
| Power Off| Press this button to turn off the UPS.
| Self-Test| Automatic : The UPS performs a self-test automatically when turned on, and every two weeks thereafter (by default). During the self- test, the UPS briefly operates the connected equipment on the battery.

Manual: Press and hold the    button for a few seconds to initiate the self-test.

__| Cold Start 120/230 V Models| When there is no utility power and the UPS is off, the cold start feature will switch the UPS and connected equipment onto battery power,

(see Troubleshooting ).

Function

| Factory Default| User Selectable Choices|

Description

---|---|---|---
Automatic Self-Test| Every 14 days

(336 hours)

| •  Every 7 days (168 hours)

•  On start-up only

•  No self-test

| Set the interval at which the UPS will execute a self-test.
UPS ID| UPS_IDEN| Up to eight characters (alphanumeric)| Uniquely identify the UPS, (i.e. server name or location) for network management purposes.
Date of Last Battery Replacement| Manufacture Date| mm/dd/yy| Reset this date when you replace the battery module.
Minimum Capacity Before Return from Shutdown| 0 per cent| • 0%               • 50%

• 15%             • 60%

• 30%             • 75%

• 45%             • 90%

| Specify the percentage to which batteries will be charged following a low battery shutdown before powering connected equipment.
Voltage Sensitivity

The UPS detects and reacts to line voltage distortions by transferring to battery operation to protect the connected equipment.

| High sensitivity

| Brightly illuminated: high sensitivity

Dimly illuminated: medium sensitivity

No illumination: low sensitivity

| Adjust by pressing the VOLTAGE SENSITIVITY

switch  (rear panel). Use a pointed object, (such as a pen) to do so.

Note: In situations of poor power quality, the UPS may frequently transfer to battery operation. If the connected equipment can operate normally under such conditions, reduce the sensitivity setting to conserve battery capacity and service life.

Alarm Delay Control| Enable| •  Enable

•  Mute

•  Disable

| Mute ongoing alarms or disable all alarms permanently.
Shutdown Delay| 90 seconds| • 0 s                • 360 s

• 90 s              • 450 s

• 180 s            • 540 s

• 270 s            • 630 s

| Set the interval between the time when the UPS receives a shutdown command and the actual shutdown.

Low Battery Warning| 2 minutes| Brightly illuminated:

low battery warning level of about 2 minutes

Dimly illuminated:

low battery warning level of about 5 minutes

No illumination:

low battery warning level is about 8 minutes

| The low-battery warning beeps are continuous when two minutes of run time remain.
---|---|---|---
| PowerChute software interface provides automatic, unattended shutdown when approximately two minutes of battery-operated run time remains.| To change the default interval setting, use a pointed object such as a pen to press the

VOLTAGE SENSITIVIY switch  (rear panel), while

pressing the button, (front display). Change the low battery warning interval setting to the time that the operating system or system

software requires to safely shut down.

Synchronized Turn-on Delay| 0 seconds| •  0 s

•  60 s

•  120 s

•  180 s

| •  240 s

•  300 s

•  360 s

•  420 s

| Specify the time the UPS will wait after the return of utility power before starting up, (to avoid branch circuit overload).
High Transfer Point| 100 V models:

108 VAC

120 V models:

127 VAC

| •  108 VAC

•  110 VAC

•  127 VAC

•  130 VAC

| •  112 VAC

•  114 VAC

•  133 VAC

•  136 VAC

| To avoid unnecessary use of the battery where utility voltage is chronically high, set the high transfer point higher if the connected equipment can tolerate this condition.
| 230 V models:

253 VAC

| •  253 VAC

•  257 VAC

| •  261 VAC

•  265 VAC

|
Low Transfer Point| 100 V models:

92 VAC

120 V models:

106 VAC

| •  86 VAC

•  88 VAC

•  97 VAC

•  100 VAC

| •  90 VAC

•  92 VAC

•  103 VAC

•  106 VAC

| To avoid unnecessary use of the battery where utility voltage is chronically low, set the low transfer point lower if the connected equipment can tolerate this condition.
| 230 V models:

208 VAC

| •  196 VAC

•  200 VAC

| •  204 VAC

•  208 VAC

|
Output Voltage 230 V models| 230 VAC| •  220 VAC| •  240 VAC| 230 V models only: Sets the output voltage of the UPS.

Storage, Maintenance, Transport, and Service

Storage
  • Store the UPS covered in a cool, dry location with the batteries fully charged.
  • At 5° to 86° F (–15° to 30° C), charge the UPS battery every six months.
  • At 86° to 113° F (30° to 45° C), charge the UPS battery every three months.

Replacing the Battery Module

  • This UPS has an easy-to-replace, hot-swappable battery module. Replacement is a safe procedure, isolated from electrical hazards. You may leave the UPS and connected equipment on during the replacement procedure.
  • Once the batteries are disconnected the connected equipment is not protected from power outages. Refer to the appropriate replacement battery user manual for battery module installation instructions. See your dealer or contact APC at www.apc.com/support for information on replacement battery modules.

Be sure to deliver the spent battery(s) to a recycling facility or ship it to APC in the replacement battery packing material.

Service

If the UPS requires service do not return it to the dealer. Follow these steps:

  1. Review the problems discussed in Troubleshooting to eliminate common problems.
  2. If the problem persists, contact APC Customer Service through the APC Web site, www.apc.com/support.
    • Note the model number of the UPS, the serial number, and the date purchased. If you call APC Customer Service, a technician will ask you to describe the problem and attempt to solve it over the phone. If this is not possible, the technician will issue a Returned Material Authorization Number (RMA#).
    • If the UPS is under warranty, repairs are free.
    • Procedures for servicing or returning products may vary internationally. Refer to the APC Web site for country-specific instructions.
  3. Pack the UPS in its original packaging. If this is not available, refer to www.apc.com/support for information about obtaining a new set.
    • Pack the UPS properly to avoid damage in transit. Never use Styrofoam beads for packaging. Damage sustained in transit is not covered under warranty.
    • Always DISCONNECT THE BATTERY before shipping in compliance with U.S. Department of Transportation (DOT) and IATA regulations. The battery may remain in the UPS.
  4. Mark the RMA# on the outside of the package.
  5. Return the UPS by the insured, prepaid carrier to the address given to you by Customer Service.

Troubleshooting

Use this chart to solve minor UPS installation and operation problems. Refer to www.apc.com for complex UPS problems.

Problem and/or Possible Cause Solution

UPS will not turn on
The battery is not connected properly.| Check that the battery connector is fully engaged.
button not pushed.| Press the button once to power up the UPS and connected equipment.
The UPS is not connected to the utility power supply.| Check that the power cable from the UPS to the utility power supply is securely connected at both ends.
Very low or no utility voltage| Check the utility power supply to the UPS by plugging in a table lamp. If the light is very dim, have the utility voltage checked.
UPS will not turn off
The UPS is experiencing an internal fault| Do not attempt to use the UPS. Unplug the UPS and have it serviced immediately.
UPS beeps occasionally
Normal UPS operation when running on battery.| None: The UPS is protecting the connected equipment. Press the button to silence this alarm.
UPS is not providing the expected backup time
The UPS battery(s) are weak due to a recent power outage or battery(s) are near the end of their service life.| Charge the battery(s). Batteries require recharging after extended outages. Batteries can wear faster when put into service often or when operated at elevated temperatures. If the battery(s) are near the end of their service life, consider replacing the battery(s) even if the replaced battery LED is not yet illuminated.
All LEDs are illuminated and the UPS emits a constant beeping
The UPS is experiencing an internal fault.| Do not attempt to use the UPS. Unplug the UPS and have it serviced immediately.
Front panel LEDs flash sequentially
The UPS has been shut down remotely through software or an optional accessory card.| None: The UPS will restart automatically when utility power returns.

Problem and/or Possible Cause Solution

All LEDs are off and the UPS is plugged into a wall outlet
The UPS is shut down or the battery is discharged from an extended outage.| None: The UPS will restart automatically when utility power is restored and the battery has a sufficient charge.
The Overload LED is illuminated and the UPS emits a sustained alarm tone
The UPS is overloaded.| The connected equipment exceeds the specified “maximum load” as defined in the Specifications on the APC website, www.apc.com.

The alarm remains on until the overload is removed. Disconnect nonessential equipment from the UPS to eliminate the overload condition.

The UPS continues to supply power as long as it is online and the circuit breaker does not trip; the UPS will not provide power from batteries in the event of a utility voltage interruption.

The Replace Battery/Battery Disconnected LED is illuminated
The Replace Battery/Battery Disconnected LED flashes and a short beep is emitted every two seconds to indicate the battery is disconnected.| Check that the battery connectors are fully engaged.
Weak battery| Allow the battery to recharge for 24 hours and perform a self- test. If the problem persists after recharging, replace the battery.
Failure of a battery self-test: Replace Battery/Battery Disconnected LED illuminates and the UPS emits short beeps for one minute. The UPS repeats the alarm every five hours.| Allow the battery to recharge for 24 hours. Perform the self-test procedure to confirm the replacement battery condition. The alarm stops and the LED clears if the battery passes the self-test.

If the battery fails again, it must be replaced. The connected equipment is unaffected.

The Site Wiring Fault LED on the rear panel is illuminated (120 V model only)
The UPS is plugged into an improperly wired utility power outlet.| Wiring faults detected include missing ground, hot-neutral polarity reversal, and an overloaded neutral circuit.

Contact a qualified electrician to correct the building wiring.

The input circuit breaker trips
The connected equipment exceeds the specified “maximum load” as defined in the Specifications on the APC website, www.apc.com.| Unplug all nonessential equipment from the UPS. Reset the circuit breaker.
The AVR Boost or AVR Trim LEDs are illuminated
The system is experiencing very high or low utility voltage.| Have a qualified service personnel check your facility for electrical problems. If the problem persists, contact the utility company for further assistance.

Problem and/or Possible Cause Solution

There is no utility power
There is no utility power and the UPS is off.| 120/230 V models: Use the cold start feature to supply power to the connected equipment in front of the UPS battery(s).

Press the button for one second and release. The UPS will beep briefly.

Press and hold the  button again for about three seconds. The unit will emit two beeps. Release the button during the second beep.

UPS operates on battery although line voltage exists
The UPS input circuit breaker trips.| Unplug all nonessential equipment from the UPS. Reset the circuit breaker.
Your system is experiencing very high, low or distorted line voltage.| Move the UPS to a different outlet on a different circuit: Inexpensive fuel-powered generators may distort the voltage. Test the input voltage with the utility voltage display, (see Operation ). If acceptable to the connected equipment, reduce the UPS sensitivity.
Battery Charge and Load LEDs flash simultaneously
The UPS has shut down.

The internal temperature of the UPS has exceeded the allowable threshold for safe operation.

| Check that the room temperature is within the specified limits for operation. Check that the UPS is properly installed, allowing for adequate ventilation.

Allow the UPS to cool down. Restart the UPS. If the problem persists, contact APC at www.apc.com.

Diagnostic utility voltage
All five LEDs are illuminated.| The line voltage is extremely high and should be checked by an electrician.
There is no LED illumination.| The line voltage is extremely high and should be checked by an electrician.
On-Line LED
There is no LED illumination.| The UPS is running on battery, or it must be turned on.
The LED is blinking.| The UPS is running an internal self-test.

Regulatory

Regulatory and Warranty Information

Regulatory Agency Approvals and Radio Frequency Warnings

FCC Compliance Notice

This equipment has been tested and found to comply with the limits for a Class A digital device, under part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy. If it is not installed and used by the instruction manual, it may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case users will be required to take whatever measures may be necessary to correct the interference at their own expense.

120 V models

100 V models

230 V models

EC Declaration of Conformity

Declaration of Conformity

We, the undersigned, declare under our sole responsibility that the equipment specified below conforms to the following standards and directives:

Standards to Which Conformity Declared:

  • EN62040-1-1
  • EN55022
  • EN55024
  • EN61000-3-2
  • EN61000-3-3
  • EN61000-4-2
  • EN61000-4-4
  • EN61000-4-5
  • EN61000-4-6
  • EN61000-4-8
  • EN61000-4-11
  • EN60950
  • IEC60950-1

Application of Council Directives:

  • 73/23/EEC
  • 93/68/EEC

Type of Equipment: Power Supply

Model Numbers:

  • SUA22001
  • SUA3000I

Manufacturer’s Name and Address:

American Power Conversion (A.P.C.)

  • Ballybritt Business Park, Galway, Ireland
  • 132 Fairgrounds Rd., West Kingston, RI 02892, USA
  • APC (Suzhou) UPS Co., Ltd 339 Suhong Zhong Lu, Suzhou Industrial Park, Suzhou Jiangsu 2215021, P. R. China
  • APC India Pvt, Ltd 187/3, 188/3, Jigani Industrial Area, Bangalore, 562106, Karnataka, India
  • American Power Conversion Lot 3, Block 14, Phase 3, PEZA, Rosario, Cavite, Philippines
  • American Power Conversion 2nd Street, PEZA, Cavite Economic Zone, Rosario, Cavite, Philippines
  • American Power Conversion Lot 10, Block 16, Phase 4, PEZA, Rosario, Cavite, Philippines
  • APC Brasil LTDA. Al. Xingu, 850, Barueri, Alphaville/Sao Paulo 06455-030, Brazil

Importer’s Name and Address:

American Power Conversion

  • Ballybritt Business Park, Galway, Ireland
  • Place: Galway, Ireland
  • Place: N. Billerica, MA, USA

Signatures:

  • Ray S. Ballard Managing Director, Europe Date: 5 Jan 04
  • Richard J. Everett Sr. Regulatory Compliance Engineer Date: 5 Jan 04

Limited Warranty

American Power Conversion (APC) warrants its products to be free from defects in materials and workmanship for two years from the date of purchase. Its obligation under this warranty is limited to repairing or replacing, at its sole option, any such defective products. To obtain service under warranty you must obtain a Returned

Material Authorization (RMA) number from customer support. Products must be returned with transportation charges prepaid and must be accompanied by a brief description of the problem encountered and proof of date and place of purchase. This warranty does not apply to equipment that has been damaged by accident, negligence, or misapplication or has been altered or modified in any way. This warranty applies only to the original purchaser who must have properly registered the product within 10 days of purchase.

EXCEPT AS PROVIDED HEREIN, AMERICAN POWER CONVERSION MAKES NO WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. Some states do not permit limitation or exclusion of implied warranties; therefore, the aforesaid limitation(s) or exclusion(s) may not apply to the purchaser.

EXCEPT AS PROVIDED ABOVE, IN NO EVENT WILL APC BE LIABLE FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OF THIS PRODUCT, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. Specifically, APC is not liable for any costs, such as lost profits or revenue, loss of equipment, loss of use of equipment, loss of software, loss of data, costs of substitutes, claims by third parties, or otherwise.

APC Worldwide Customer Support

Customer support for this or any other APC product is available at no charge in any of the following ways:

  • Refer to the APC website to access documents in the APC Knowledge Base and to submit customer support requests. www.apc.com (Corporate Headquarters)
  • Connect to localized APC Web sites for specific countries, each of which provides customer support information. www.apc.com/support/
  • Global support searching APC Knowledge Base and using e-support.
  • Contact an APC Customer Support center by telephone or e-mail. Local, country-specific centers: go to www.apc.com/support/contact for information.
  • Contact the APC representative or other distributor from whom you purchased your APC product for information on how to obtain local customer support.
  • Entire contents copyright 2005 American Power Conversion Corporation. All rights reserved. Reproduction in whole or in part without permission is prohibited.
  • APC, the APC logo, Smart-UPS, and PowerChute are trademarks of American Power Conversion Corporation All other trademarks, product names, and corporate names are the property of their respective owners and are used for informational purposes only.

Smart-UPS 2200/3000 VA 100/120/230 VAC Tower User Manual

Frequently Asked Questions

What is the APC SUA3000I Smart-UPS?

The APC SUA3000I Smart-UPS is a high-capacity uninterruptible power supply (UPS) designed to protect your electronic equipment from power outages, fluctuations, and disturbances.

What is the input voltage range for the APC SUA3000I Smart-UPS?

The APC SUA3000I Smart-UPS has an input voltage range of 100/120/230 VAC.

What form factor does the APC SUA3000I Smart-UPS have?

The APC SUA3000I Smart-UPS comes in a tower form factor, making it suitable for placement in various environments.

What is the capacity of the APC SUA3000I Smart-UPS in VA?

The APC SUA3000I Smart-UPS has a capacity of 3000 VA.

How does the APC SUA3000I UPS protect electronic equipment?

The UPS filters small utility line fluctuations and isolates electronic equipment from large disturbances by disconnecting from the utility line. It provides continuous power from the internal battery until utility power is restored or the battery is fully discharged.

What should I do before installing the APC SUA3000I UPS?

Before installing the UPS, you should read the Safety Guide, inspect the UPS for any damage, and ensure that the packaging is recyclable. You should also check if all the necessary components are included.

How do I connect the battery module to the APC SUA3000I UPS?

To connect the battery module, insert the battery connector into the battery jack and push it firmly twice. You should feel two snaps as the connector securely seats in the battery jack.

How do I start the APC SUA3000I UPS?

To start the UPS, press the button on the front panel. The battery charges to 90% capacity during the first four hours of normal operation.

Can I connect the APC SUA3000I UPS to my network?

Yes, you can connect the UPS to the network if applicable. It has communication ports, and you should refer to the provided documentation for details on connecting it to the network.

What is the purpose of the Emergency Power Off (EPO) feature IN APC SUA3000I UPS?

The EPO feature allows for immediate de-energizing of connected equipment from a remote location without switching to battery operation. It is a safety feature.

What is the warranty for the APC SUA3000I Smart-UPS?

APC offers a limited warranty of two years from the date of purchase for its products. To obtain warranty service, you should contact APC Customer Service and follow their instructions.

What is the purpose of the Site Wiring Fault LED on the rear panel of APC SUA3000I UPS, and how do I address it?

The Site Wiring Fault LED indicates potential wiring issues with the utility power outlet. If it's illuminated, it suggests problems like missing ground, hot-neutral polarity reversal, or an overloaded neutral circuit. You should contact a qualified electrician to correct these wiring faults.

Reference:APC SUA3000I 3000VA Smart-UPS User Manual- device.report

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