The air conditioner is a powerful machine capable of providing maximum cooling for every office and household. Since everyone swears by an air conditioner to keep them cool and comfortable all day, these units must always be kept in great condition, both internally and externally.
The air conditioning system relies on different parts in order to continue providing families and businesses with maximum cooling and ventilation for all seasons. But in a country like Singapore, where dry weather is prevalent all year, this is especially important as most Singaporeans turn to the machine to save them from the effects of intense heat and humidity. From compressors to filters to coils, each part counts in making sure that the air conditioning unit is able to perform at the best of its capacity. However, apart from these essential aircon parts, few are familiar with the function — and in most cases, the existence — of the aircon expansion valve.
As one of the most important and crucial parts in an air conditioner, expansion valves are devices used to control the refrigerant flow in a refrigeration system. In this article, we will discuss in detail the functions of an expansion valve, its different types, and how they all function to make the AC unit work.
To better understand how an aircon expansion valve works, you must first have the basic understanding of the direct relationship between temperature and pressure. When the refrigerant pressure increases, the temperature also rises. This results in the molecules of both elements packed more tightly together. The increase in both elements is what happens once the refrigerant makes its way through the compressor.
The relationship between pressure and temperature also works in the opposite direction. By a reduction in the pressure of the refrigerant, one can also cool the refrigerant off effectively. In simpler terms, as the refrigerant’s pressure gets reduced, the refrigerant can also be effectively cooled off. What the expansion valve does is to accomplish this process by inhibiting the refrigerant from flowing into the evaporator coil.
So without the expansion valve, there is the big possibility that the refrigerant would flow and rush into the evaporator coil without any reduction in its pressure. What the expansion valve does is to only permit a small amount of the refrigerant to pass by and go into the coil. As the refrigerant makes its way inside, it’s only able to spread itself out in the empty evaporator coil. This reaction of expansion causes its pressure drop, also taking the temperature down with it.
It is worth noting that like any component inside the AC system, the expansion valve isn’t immune to any repairs and damages. It can malfunction like any other air conditioner part, resulting in a unit that fails to give any cooling. That’s why understanding the way an aircon expansion valve works is important as it contributes to how your air conditioning unit operates and functions. The valve plays a key role in the overall system of an air conditioner and thus, deserves to be taken care of through proper maintenance and check-ups.
Apart from doing regular maintenance for your aircon valve, it pays to check for your overall aircon system occasionally to help you save from potentially bigger maintenance and repair costs in the long run.
For quality maintenance and repairs for every major air conditioning brand, contact us at Oasis Aircon Singapore. Our team of highly skilled air con technicians are here to assist you for all your aircon needs. With our honest pricing, we ensure that your home, office, or business will receive the best service, for the best price.