Replacing the Battery

This UPS has an easy to replace hot-swappable battery.

Note: Please read the cautions in the APC Safety Guide.

Replacement Batteries

See your dealer or call the number in this manual for information on replacement battery kits. For 420 models, order RBC 2. For 620 models, order RBC 4.

Battery Replacement Procedure

Battery replacement is a safe procedure, isolated from electrical hazards. You may leave the UPS and loads on for the following procedure.

Note: Once the battery is disconnected, the loads are not protected from power outages.

1.Lay the UPS on its left side. Remove the two screws holding on the battery door and open the door.

Note: It may be necessary to pull the battery door slightly toward the front of the unit in order to open the door fully.

2. Gently pull out the battery by grasping the white tab.

Troubleshooting

3.Disconnect the two wires connecting the battery to the UPS. Loosen the wires by wiggling them while pulling straight back from the battery connector.

4.Connect the new battery in place of the old.

Note: Small sparks at the battery connections are

normal during connection.

5.Place the new battery in the UPS. Use care to avoid pinching the wires.

6.Close the battery compartment door and replace the screws.

7.Dispose of the old battery properly at an appropriate recycling facility or return it to the supplier in the packing material for the new battery. See the new battery instructions for more information.

Service

Problem

UPS will not turn on.

UPS will not turn on or off.

UPS operates on-battery even though normal line voltage is thought to exist.

UPS beeps occasionally.

UPS does not provide expected back up time.

On-line and overload indicators are flashing alternately.

All indicators are flashing.

Possible Cause

On/off/test button not pushed.

UPS input circuit breaker tripped.

Computer interface problem.

UPS’s input circuit breaker tripped.

Normal UPS operation.

The UPS’s battery is weak due to recent outage or is near the end of its service life.

The UPS was shutdown by PowerChute®plus software.

Internal UPS fault.

Solution

Press the on/off/test button to power the UPS and the loads.

Reduce the load on the UPS by unplugging equipment and reset the circuit breaker by pressing the plunger back in.

Disconnect the computer interface. If the UPS now works normally, check the interface cable and the attached computer.

Reduce the load on the UPS by unplugging equipment and reset the circuit breaker by pushing the plunger back in.

None. The UPS is protecting the load.

Charge the battery. The UPS’s batteries require recharging after an extended outage. Batteries age faster when put into service often and when operated at elevated temperatures. If the battery is near the end of its service life, consider replacing the battery even if the replace battery indicator is not yet lit.

None. The UPS will restart automatically when utility power returns.

Do not attempt to use the

If the UPS requires service do not return it to the dealer!

Follow these steps:

1.Use the Troubleshooting section to eliminate common problems.

2.Verify that no circuit breakers are tripped. A tripped circuit breaker is the most common UPS problem!

3.If the problem persists, call customer service or visit the APC Internet Website (www.apcc.com).

Note the model number of the UPS, the serial number, and the date purchased. A technician will ask you to describe the problem and try to solve it over the phone, if possible. If this is not possible the technician will issue a Return Merchandise Authorization Number (RMA#).

If the UPS is under warranty, repairs are free. If not, there is a repair charge.

4.Pack the UPS in its original packaging. If the original packing is not available, ask customer service 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.

Include a letter with your name, RMA#, address, copy of the sales receipt, description of the trouble, your daytime phone number, and a check (if

necessary).

5.Mark the RMA# on the outside of the package

6.Return the UPS by insured, prepaid carrier to the address below.

North & South America

Europe

APC

APC

132 Fairgrounds Road

Ballybritt Business Park

West Kingston, Rhode Island 02892 USA

Galway, Ireland 10800-702000

1-800-800-4APC/1-401-789-5735

353-91-702020

Internet

E-Mail

http://www.apcc.com

apctech@apcc.com

Specifications

The UPS operates normally, but the site wiring fault indicator is lit.

On-line and on-battery indicators only are flashing

All indicators are off and the UPS is not operating.

The replace battery light is

Building wiring error such as missing ground or hot to neutral wire reversal.

Internal UPS fault.

The UPS is shutdown and the battery is discharged from an extended power outage.

Weak batteries.

UPS. Turn the UPS off and have it serviced immediately.

Have a qualified electrician correct the building wiring.

Do not attempt to use the UPS. Turn the UPS off and have it serviced immediately.

None. The UPS will return to normal operation when the power is restored and the battery has a sufficient charge.

Allow the batteries to

Acceptable input voltage

Input voltage (on-line operation)*

Output voltage *

Input Over Current Protection

Frequency limits (on-line operation)

Transfer time

Maximum load

On-battery output voltage

On-battery frequency

On-battery waveshape

Output Over Current Protection

Battery type

Typical battery life

420 VA

620 VA

0 - 160 VAC

81-143 VAC

106-127 VAC

Resettable circuit breaker

47 - 63 Hz

4 ms typical, blackout response time

420 VA 260 W

620 VA 390 W

115 VAC

50 or 60 Hz, ±0.1 Hz; unless synchronized to

utility during brownout

Stepped sine-wave

Overcurrent and short-circuit protected,

latching shutdown on overload

Spill proof, maintenance free, sealed lead-acid

3 to 6 years, depending on number of

discharge cycles and ambient temperature

illuminated.

The overload light is illuminated or flashing

Replacement batteries not connected properly.

The UPS is overloaded.

recharge for at least 4 hours. If the problem persists after recharging, replace the batteries.

Confirm the battery connections.

Reduce the load on the UPS by unplugging equipment.

Typical recharge time

2 to 5 hours from total discharge

Operating temperature

0 to +40 °C (+32 to +104 °F)

Storage temperature

-15 to +45 °C (+5 to +113 °F)

Operating and storage relative humidity

0 to 95%, non-condensing

Operating elevation

0 to +3,000 m (0 to +10,000 ft)

Storage elevation

0 to +15,000 m (0 to +50,000 ft)

Audible noise at 1 m (3 ft)

 

<45 dBA

Size (H x W x D)

16.8 x 11.9 x 36.8 cm

 

(6.6 x 4.7 x 14.5 in)

Weight - net (shipping)

10.0 (10.9) kg

 

12.3 (13.2) kg

 

22.0 (24.0) lb.

 

27.0 (29.0) lb.

For Computer Interface Port Specifications, see the APC Website.

Safety and approvals

UL 1778, UL 497A, CSA 107.1, FCC part 68

EMC verification

FCC/DOC Class B certified

Electromagnetic immunity

IEC 801-4 level IV, 801-5 level III

* User-adjustable through PowerChute®plus (see software documentation).

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American Power Conversion 420/620 user manual Replacing the Battery, Troubleshooting, Service, Specifications