Liebert Corporation

David A Dukes

Thomas Harvey

Stephen C Sillato

Steven M Madara

Daniel B Baer

Frank E DiPaolo

Karl M Criss

Steve Sillato

Thomas E Harvey

A method of preventing condensation on equipment inside a temperature-controlled enclosure comprises measuring the temperature in at least one location inside the enclosure. The temperature inside the enclosure is compared with a safe temperature, at which the risk of condensation is reduced. The temperature inside the enclosure is increased until the safe temperature is achieved. A user is then notified that it is safe to access the enclosure.

Condensation prevention system and methods of use

The disclosure provides an improved cooling system and associated cabinet for electronic equipment, and optionally, a backup ventilation system for cooling related failures. Generally, the disclosure includes a high capacity closed loop refrigeration system in a modified cabinet, while accommodating standard sized computer equipment. Further, the system provides directed heat removal by altering typical airflow paths within the cabinet. The backup ventilation system is powered by auxiliary power in the case of power failure and uses the same fan(s) for ventilation as is used for cooling. The disclosure provides a more efficient, higher capacity cooling cabinet in less space than otherwise known in the art. Further, the cooling system can anticipate heat loads and therefore operate in a predictive capacity by monitoring input power to the electronic equipment and adjusting the cooling for the expected increase or decrease in heat load generated based on the input power.

Electronic equipment cabinet with integrated, high capacity, cooling system, and backup ventilation

A redundant, dual circuit air conditioning apparatus is provided for communications enclosures which is wall mounted thereon. A conditioned air housing is provided having a blower chamber which contains two air circulation blowers thrusting air into the enclosure and having freely pivotal ducts which operate in mutual cooperation in response to pressure variations between the chamber and the enclosure. Internested evaporator coils of two discrete refrigeration circuits share common fin connections for efficiency and each includes a dual line input performing in conjunction with an expansion valve and a simple Y distribution fitting coupled to those lines which achieves requisite pressure drops at low cost. Compressor and condenser components are located within a condenser system housing in mutual isolation and perform in conjunction with discrete separate power inputs and controls such that servicing may take place safely upon one air conditioning entity while the other remains in operation to prevent down time during servicing.

Air conditioning for communications stations

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Columbus, OH, United States of America

David A Dukes