QD-ENG-40 REV.3 - 3 -INTRODUCTION:Ice Qube’s Thermal Management System, TMS, is designed to cool, dehumidify or heat the internalenvironment of modern electrical enclosures. Ice Qube offers efficient and aesthetically appealingpackages that can be mounted on top or on the side of your enclosure. Our closed-loop circulationdesign protects your equipment from air-borne dust and contaminants which may hinder equipmentoperations, causing unnecessary down time. Ice Qube is able to provide cooling capacities from1,000 to 27,000 BTU per hour - a wide range of cooling systems to satisfy many of your conditioningneeds.BASIC OPERATION:The Ice Qube’s Thermal Management System, TMS, is actually a combination of three independentsystems which function simultaneously to maintain environmentally friendly conditions for varioustypes of electronic equipment enclosures. These three thermal related systems are: the closed-loopcool air system; the warm air system; and the vapor-compression refrigeration system. Please referto Figure 1.The closed-loop cool air system circulates cold air from the Ice Qube TMS to the electronicsenclosure. This air returns to the Ice Qube system bringing with it unwanted heat and humidity frominside the enclosure. Heat and humidity is then removed by a heat exchanger located within the IceQube TMS. This heat exchanger is part of the vapor-compression refrigeration system.At the heart of the vapor-compression refrigeration’s system is a quiet, energy efficient rotarycompressor which circulates environmentally friendly NON-CFC refrigerant. The main purpose of thiscompressor is to transfer heat laden refrigerant from the evaporator, located within the closed-loopcool air system, to a condenser, located in the warm air system. In the warm air system, air iscirculated from the ambient surrounding the enclosure, through a filter, and across the warm airsystem heat exchanger. Here, heat from the enclosure is transferred from the warm air heatexchanger into the warm air stream and dissipated to the ambient.Figure 1: Flow DiagramUNPACKING INSPECTION: