Fuse replacement procedures – Liebert Power Supply User Manual

Page 12

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POWERSURE™ INTERACTIVE TYPICAL

BATTERY DISCHARGE CURVES

(Discharge times are at 25° C ambient)

0

25

50

75

100

0

20

40

60

80

Percent Load

Run Time (Mins)

0

25

50

75

100

0

20

40

60

80

Percent Load

Run Time (Mins)

0

25

50

75

100

0

20

40

60

80

Percent Load

Run Time (Mins)

0

25

50

75

100

0

20

40

60

80

Percent Load

Run Time (Mins)

700 VA

1000 VA

1400 VA

2200 VA

AUDIBLE ALARM CONDITIONS

CONDITION

ALARM

Battery mode (mains

failure)

One short beep every ten seconds; more
than two minutes of run time remaining

Low battery

Two short beeps every five seconds; less than
two minutes of run time remaining

Battery replacement

Two second beep every minute

UPS output overload

One short beep every second

UPS fault

Continuous tone

FUSE REPLACEMENT PROCEDURES

FOR 700 VA

MODELS

CAUTION: Before changing the supply fuse, turn off the UPS, and unplug the input
cord from the AC input power supply and from the UPS.

1. Remove the fuse holder by inserting a flat blade screw driver into the slot and

pulling out as indicated in the figure above.

2. Remove the input fuse.

3. Remove the spare fuse from its position by using the screw driver to push it out.

4. Place spare fuse in the input fuse position, and replace the fuse holder. The fuse

holder will lock into position.

5. Reconnect the input power lead to the UPS, and the input power lead to the input

AC supply.

6. Restart the UPS. The UPS is ready for normal operation.

NOTE: For 1000, 1400, and 2200 VA units press the reset circuit protector button.

Insert flat blade screw

driver into slot and pull

fuse holder out to remove

AC Inlet

Fuse Holder

Input Fuse
Spare Fuse

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