Many homeowners are curious about whether they should install a central air conditioning system in their homes, and what to consider when choosing and purchasing one. There are also several overlooked issues during the design and usage of air conditioning systems. This article in our series aims to provide answers to some common questions. Before buying a central air conditioner, it's always a good idea to do your research and understand the key factors involved.
First, Pay Attention to the Location in the Living Room
The placement of a central air conditioner depends on how the ceiling is designed, and the living room or dining area is typically the best spot. As shown in the image, it can be mounted in the hallway between the living and dining areas, which helps save ceiling space while creating a clear visual layering effect. Most systems use side air outlets with bottom return air. The indoor unit effectively covers the entire living area, and a double-louvered outlet allows for easy adjustment of airflow direction. It's important to consider where people usually sit, such as near the sofa.
Tip: Air outlets come in single-layer and double-layer types. Double-layer outlets offer better airflow distribution and a more even temperature, and they can be closed when not in use. Single-layer ones can also be closed but aren’t as effective. In terms of cost, double-layer outlets tend to be more expensive than single-layer ones.
Second, Adjust the Outlet to Achieve Balanced Temperature
The position of the air and return vents in a central air conditioning system is adjustable. Common configurations include side air supply with bottom return, or side air supply with side return. Even though the louvers on the air outlet are fixed, you can manually adjust them to direct the airflow where needed. There are generally two main scenarios:
A. The indoor unit is installed in a corner.
In this case, you can adjust the vertical louvers to the left so that the airflow reaches the most frequently used areas of the room.
B. The indoor unit is placed in the center of a large space.
Here, the louvers on both sides can be adjusted outward, allowing the airflow to cover the entire room evenly and improve comfort throughout the space.
3. What’s the Difference Between “One-to-One†and “One-to-Many†Systems?
The original concept of central air conditioning was based on large-scale water systems. Over time, it evolved into home-based systems, which can be either one-to-one or one-to-many. These two structures suit different types of spaces and user needs.
One-to-One System:
This setup consists of a single indoor unit paired with an outdoor unit, making it ideal for smaller homes. It’s more cost-effective compared to multiple connections. Since it operates independently, maintenance is easier. Also, the outdoor unit is compact and can be installed in a small space, freeing up the balcony for other uses.
One-to-Many System:
Also known as a multi-split system, this type is commonly used in villas or larger homes with limited space for air conditioning units. Multiple indoor units connect to a single outdoor unit, which powers the entire house. When rooms are not in use, the system doesn't consume unnecessary energy, helping to reduce operating costs significantly.
4. What Are “Horsepower,†“Inverter,†and “Fixed Frequency�
Compared to fixed-frequency systems, inverter air conditioners provide more stable temperature control. From a technical perspective, "constant temperature" refers to time, while "balanced temperature" relates to space. Typically, the thermostat measures the return air temperature. If it remains stable, an inverter system will maintain the temperature within a 0.5-degree range around the set point, while a fixed-frequency system may fluctuate by up to 1 degree. Therefore, inverter systems offer better temperature stability and comfort.
Tip:
When discussing air conditioning performance, the term "horsepower" often comes up. In technical terms, one horsepower equals 2,500 watts per hour. However, many companies use this term loosely, causing confusion. To avoid misunderstandings, always refer to the actual power rating on the product label. Choose an air conditioner that matches your home's size and layout for optimal performance.
5. What Types of Air Outlets Are Popular Today?
Common air outlets available in the market include those made from ABS plastic and aluminum alloy. Some people choose custom wooden outlets for aesthetic reasons, although these are more expensive.
Tip: ABS outlets are less likely to develop condensation, making them a practical choice. Aluminum alloy outlets have good thermal conductivity, which can cause condensation if the surface becomes too cold. Wooden outlets may crack or warp due to temperature changes between hot and cold air flows.
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