Air Conditioning Systems Winnipeg

Posted on May 31, 2010 in: Uncategorized

An air conditioning system, or a standalone air conditioner, provides cooling, ventilation, and humidity control for all or part of a house or building. The refrigerant cycle consists of four essential elements to create a cooling effect. A compressor provides compression for the system. This compression causes the vaporized cooling medium to become more dense; a by-product of this process is added heat. The compressed vapor is then cooled by heat exchange with the outside air, so that the vapor condenses to a fluid, in the condenser coil. The fluid is then pumped to the inside of the building, where it enters an evaporator. In this evaporator, small spray nozzles spray the cooling fluid into a chamber, where the pressure drops and the fluid evaporates. Since the evaporation absorbs heat from the surroundings, the surroundings cool off, and thus the evaporator absorbs or adds heat to the system. The vapor is then returned to the compressor. A metering device (often called an “orifice”) acts as a restriction in the system at the evaporator to ensure that the refigerant flows into the evaporator at the proper rate; this keeps the refigerant from returning to the compressor in a liquid state, and also controls the rate of heat exchange in the evaporator.

Central, ‘all-air’ air conditioning systems are often installed in modern residences, offices, and public buildings, but are difficult to retrofit (install in a building that was not designed to receive it) because of the bulky air ducts required. A duct system must be carefully maintained to prevent the growth of pathogenic bacteria in the ducts. An alternative to large ducts to carry the needed air to heat or cool an area is the use of remote fan coils or split systems. These systems, although most often seen in residential applications, are gaining popularity in small commercial buildings. The evaporator coil is connected to a remote condenser unit using piping instead of ducts. Ductless air conditioners are the solution for retrofitting.

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