Emerson NXr Manuel d'utilisateur télécharger pdf (Page 12)

Installation

1.0 INSTALLATION

Liebert’s NX

™

Uninterruptible Power Supply system provides continuous, high-quality AC power to

your business-critical equipment, such as telecommunications and data processing equipment. The

NX UPS supplies power that is free of the disturbances and variations in voltage and frequency com-

mon to utility power, which is subject to brownouts, blackouts, surges and sags.

The NX utilizes the latest in high-frequency, double-conversion pulse width modulation (PWM) tech-

nology and fully digital controls to enhance its reliability and increase the ease of use.

This section describes the NX’s environmental requirements and mechanical considerations that

must be taken into account when planning the positioning and cabling of the UPS equipment.

Because every site is unique, this section presents a guide to general procedures and practices that

should be observed by the installing engineer, rather than step-by-step installation instructions.

1.1 External Inspections

1. While the UPS system is still on the truck, inspect the equipment and shipping container(s) for

any signs of damage or mishandling. Do not attempt to install the system if damage is apparent.

If any damage is noted, file a damage claim with the shipping agency within 24 hours and contact

Liebert Global Services at 1-800-LIEBERT to inform them of the damage claim and the condition

of the equipment.

2. Compare the contents of the shipment with the bill of lading. Report any missing items to the

carrier and your local Liebert representative immediately.

1.2 Internal Inspections

1. Remove any packaging material, then visually examine the UPS and battery equipment for

transit damage, both internally and externally. Report any such damage to the shipper and to

Liebert immediately.

2. Check the nameplate inside the cabinet door to verify that the model number and rating

correspond to the ones specified. Record the model number and serial number in the front of this

installation manual. This information is necessary should service be required.

3. Check for loose connections or unsecured components in the cabinet.

4. Check for shipping damage to internal components.

WARNING

Do not apply electrical power to the UPS equipment before the arrival of the commissioning

engineer.

WARNING

The UPS equipment should be installed by a qualified engineer in accordance with the

information contained in this section.

WARNING

Special care should be taken when working with the batteries associated with this equipment.

When connected together, the nominal battery voltage is 288VDC and is potentially lethal.

• Eye protection should be worn to prevent injury from accidental electrical arcs.

• Remove rings, watches and all metal objects.

• Only use tools with insulated handles.

• Wear rubber gloves.

If a battery leaks electrolyte or is otherwise physically damaged, it must be replaced, stored in

a container resistant to sulfuric acid and disposed of in accordance with local regulations.

If electrolyte comes into contact with skin, the affected area should be washed immediately

with large amounts of water.

NOTE

The NX UPS can be used in TN utility system.

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Emerson NXr Manuel d'utilisateur Page 12

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