Emerson Liebert InteleCool 2 Manual de usuario descargar pdf (Pagina 6)

In tro duc tion

Precision environment control may be defined as the

simultaneous control of air temperature, humidity,

distribution and cleanliness on a continual, around-the-clock

basis.

Conventional building or ‘comfort’ systems, as they are

called, are not designed for this 24-hour, year-round usage,

they lack the ability to provide the precision and reliability or

‘close control’ that is so critical to many applications.

Manufacture

All Liebert InteleCool EX units are built in accordance with

European directives 98/37/CE (89/392/CEE; 91/368/CEE;

93/68/CEE), 89/336/CEE; 73/23/CEE. The Liebert Air

Conditioning Quality System is approved by LRQA in

accordance with the standards UNI EN ISO 9001: 1994.

Each unit is supplied complete with a Test Certificate and

Declaration of Conformity.

All units carry the “ CE ” mark and fully comply with

European Directives concerning mechanical, electrical and

electromagnetic safety including:

• EN 50081-1, Emission (”Generic Emission Standard, Part

1: Residential, Commercial and Light Industry”, January

1992).

• EN 50082-2, Immunity (”Generic Immunity Standard,

Part 2: Industrial Environment”, March 1995).

In addition, Radio Frequency Electromagnetic Field

Immunity tests have been performed in the frequency range

27 MHz to 1000 MHz at 10 V/m to cover the requirements of

EN 50082-2 and EN 50082-1.

The above mentioned standards refer to: Radiated Emissions

(Enclosure); Conducted Emissions (AC Mains); Radiated

E/M Field (Enclosure); Electrostatic Discharges (Enclosure);

Fast Transients (AC and DC Mains, Signal Lines); Conducted

Disturbances induced by RF Fields (AC and DC Mains,

Signal Lines).

Accessibility

Access to the air filters, compressor, fans, and the electrical

panel is available from the outdoor front of the unit in models

LEX04E, LEX05E and LEX06E.

Access to the compressor and condenser fan is available from

the sides of the unit in models LEX08E, LEX10E and

LEX14E. Access to the electrical panel and evaporator fan is

from the outdoor front of the units.

All electrical connections are made from the rear of the units.

Applications

The InteleCool EX unit is ideally suited for precision close

control for many different applications where internal

floorspace is unavailable. Typical applications would be:

• Telecommunications Base Stations

• Computer Rooms

• Telephone Exchanges

• Network Controllers (LAN)

• Telecom Installations

• Laboratories

System type

The InteleCool EX is a single packaged unit comprising of

three distinct sections:

• Direct Expansion Evaporator Section

• Condenser Section

• Fresh Air Free Cooling Section

The evaporator section consists an evaporator coil, high

efficiency compressor, two direct driven fans, refrigeration

components and EU3 filter.

The condenser section consists of a condenser coil, a direct

driven axial fan, and a refrigerant condensing pressure

controller.

The fresh air freecooling section consists of a modulated

damper.

Models LEX04E, LEX05E and LEX06E are designed for

operation at 230V/1ph/50Hz. Models LEX08E, LEX10E and

LEX14E are designed for operation at 400V/3ph/50Hz.

As an option units can operate from an emergency supply of

24V or 48V DC, (evaporator fan, controls and freecooling

damper only), to maintain emergency cooling during periods

of mains power loss.

2 SLE ICX TDM E.2 (06/99)

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