Uninterruptible Power Supplies Online UPS 2K User Manual download pdf (Page 5)

2.5 Maintenance, servicing and faults

The UPS system operates with hazardous voltages. Repairs may be carried out only by

qualified maintenance personnel.

Caution - risk of electric shock. Even after the unit is disconnected from the mains power

supply (building wiring socket outlet), components inside the UPS system are still connected

to the battery and are still electrically live and dangerous.

Before carrying out any kind of servicing and/or maintenance, disconnect the batteries and

verify that no current is present and no hazardous voltage exist in the terminals of high

capability capacitor such as BUS-capacitors.

Only persons adequately familiar with batteries and with the required precautionary

measures may replace batteries and supervise operations. Unauthorised persons must be

kept well away from the batteries.

Caution - risk of electric shock. The battery circuit is not isolated from the input voltage.

Hazardous voltages may occur between the battery terminals and the ground. Before

touching, please verify that no voltage is present!

Batteries may cause electric shock and have a high short-circuit current. Please take the

precautionary measures specified below and any other measures necessary when working

with batteries:

- remove wristwatches, rings and other metal objects

- use only tools with insulated grips and handles.

When changing batteries, install the same number and same type of batteries.

Do not attempt to dispose of batteries by burning them. This could cause battery explosion.

Do not open or destroy batteries. Escaping electrolyte can cause injury to the skin and eyes.

It may be toxic.

Please replace the fuse only by a fuse of the same type and of the same amperage in order

to avoid fire hazards.

Do not dismantle the UPS system.

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8. Battery Replacement

1KVA: 19” Rack –mount UPS

Take out terminals and screw(B),then it is okay to pull out battery case to replace battery.

(1) Take out screw(A) first.

(2) Push the case out towards the direction as arrow shows to take off front panel.

(3)

(4)

Please make sure all wires are connected correctly upon replacing batteries.

After batteries are replaced and all wires are correctly connected,please check

if voltage value is correct.

1KVA:Voltage value should be 36 VDC for each battery set(12V/7AH*3pcs).

(5) Put termainals and drive screws back in order..

(A)

(3)

(2)

(B)

(3)

(A)

(1)

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Uninterruptible Power Supplies Online UPS 2K User Manual Page 5

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