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Central air conditioner or split machine? Choosing is important for air conditioning
As temperatures continue to rise, air conditioners have become a necessity in every home. Recently, many people who want to buy air conditioners find themselves torn between choosing central air conditioners or split systems. What are the differences between these two popular options, and how do you decide which one is right for your needs? Let’s explore this together.
When it comes to outfitting a three-bedroom, one-living-room setup, should you opt for multiple split air conditioners or go for a single central air system? If your living room spans 25 square meters, you might worry that a split system will only cool one part of the room effectively. On the other hand, while central air offers even cooling, concerns about high energy bills often arise. For smaller spaces where air conditioning is essential, should you consider a wall-mounted split system, or is central air the better choice? These questions weigh heavily on many consumers’ minds.
Let’s start by looking at the environment. Central air conditioners are discreetly installed within the ceiling, with only the indoor panel visible. In contrast, split systems require some space in the room, particularly with cabinet units, which can limit furniture placement and affect the aesthetic of the home. Many split models aren’t particularly stylish either. Central air, however, hides the main unit in the ceiling, making it less intrusive visually. Units like the TR series from US brands are incredibly compact—just 21cm thick and 45cm deep—enhancing interior design. Additionally, split systems necessitate closing doors and windows for optimal cooling, leading to stagnant indoor air over time. Central air systems, however, incorporate a “fresh air†feature, complete with both supply and return vents, improving air circulation.
Next, let’s examine energy consumption. Split air conditioners, with their outdoor unit linked to multiple indoor units, offer improved energy efficiency through independent operation. Most central air systems utilize DC inverters, such as those in TR series home units, which boast double the energy savings thanks to their dual-rotor technology. Precision-controlled split systems rely on the start-stop-start method of the outdoor unit, resulting in less accurate temperature regulation. Meanwhile, central air systems provide more precise temperature control and maintain a consistent climate throughout the house. For instance, a single central air unit with a total cooling capacity of 1160 kW can cool or heat all rooms evenly. To achieve the same effect with split systems, you’d need to purchase 100 units of 11.6 kW each.
Now, let’s consider usage. Split air conditioners typically place their indoor units near windows, making it challenging to integrate effective noise-reduction features. Central air units, however, allow for quieter designs, with some models like the TR series achieving ultra-low noise levels of just 24dB. The lifespan of split systems is approximately 10 years, requiring replacement after a decade. Central air systems, with their indoor units embedded in ceilings, experience fewer external factors affecting them, allowing for a service life of 15 to 20 years. Moreover, central air systems rarely encounter malfunctions, whether they involve the air handling unit, return air ducts, fan coils, or fresh air systems. Split systems, spread throughout the space, are more susceptible to damage from external elements and harder to fix when issues arise.
Finally, let’s talk about pricing. When purchasing just one or two air conditioners, split systems tend to be more cost-effective. However, if you need four or more units, the combined cost of multiple split systems can rival the price of a single home central air system. Installation costs also vary: split systems are simpler to install, keeping costs low, whereas central air requires more complex setups, increasing installation fees compared to traditional splits. While split systems may seem cheaper upfront, their shorter lifespans and reduced energy efficiency impact overall usage costs. Central air systems, despite higher initial prices and installation fees, offer longer lifespans and lower energy consumption, making them more economical in the long run.
Here are some tips for shopping for air conditioners:
First, consider your space. Small areas can benefit from split systems, while larger or multi-room spaces, along with a focus on aesthetics, make central air the better option.
Second, pay attention to the frequency conversion mode. AC frequency conversion systems are more affordable but less efficient, while DC frequency converters are pricier but offer better performance.
Third, determine the number of air conditioners needed based on the size of your space, orientation, and materials. In southern climates, 1 unit per 15 square meters is typical, with 1.5 horsepower covering 20 square meters, and 2 horsepower suited for 20-30 square meters.
Lastly, check the energy efficiency rating. Higher EER values indicate better technical performance and greater energy savings. National regulations categorize air conditioners into three levels, with Level 1 being the most energy-efficient and Level 3 the least.
By considering these factors, you can make a well-informed decision between central air and split systems, ensuring comfort and efficiency in your home.