Important Considerations: Critical Areas Where NOT to Install a Mini Split

Where is the Best Location for a Mini Split?

Top Indoor Mini Split Placement Pitfalls

The indoor, wall-mounted unit should be centrally located in the space, ensuring it is at least one foot away from adjacent walls and obstacles. Ideally, it should be positioned at a height between 6 and 7 feet above the floor level. This strategic placement is crucial for enabling wide airflow distribution throughout the space, thereby avoiding the creation of uncomfortable drafts. Next, let's review 5 common mistakes to avoid when placing indoor units.

1. Blocking Airflow

Mini splits rely on optimized airflow to effectively circulate conditioned air throughout a space. However, disrupting this airflow can significantly impact the system's performance. Common examples of obstructions that impede airflow include placement behind curtains, doors, or bookshelves, areas with high foot traffic, corners crammed with furniture, and proximity to return air vents from adjoining spaces. To ensure optimal functioning, it's crucial to maintain at least 1 foot of clearance in front of and around all sides of the indoor unit. For ideal positioning, the unit should be centered on an interior wall and located away from windows, corners, and common walkways. This strategic placement facilitates maximum airflow and enhances overall comfort.

2. Exposure to Direct Sunlight

Direct sun exposure can have a significant impact on the efficiency of a mini split unit by falsely influencing the thermostat, leading to disrupted operation. The solar heat gain can cause the unit to cycle prematurely, increasing the risk of overworking the compressor. To prevent this, it is advisable to avoid placing units on southern walls that face prolonged sunlight. If options are limited, utilizing window treatments to block sun exposure can be an effective solution. Optimal locations for mini split units are on northern walls or in areas that experience minimal solar impact during peak daylight hours. This strategic placement ensures more efficient and reliable operation of the unit.

3. Mounting Too High or Low

Manufacturers typically recommend mounting indoor heads of mini-split systems at an elevation of 6-7 feet above floor level. This specific height is chosen because it enables wide airflow distribution, which is essential for effective heating and cooling. However, there are potential issues with mounting the units too high or too low. When mounted at positions exceeding 7 feet, the system struggles to push airflow down into the occupied areas, leading to uncomfortable drafts and the creation of stratified hot and cold spots. This can also result in inefficient cycling of the unit. On the other hand, mounting the unit lower than 5 feet can blast cold air too close to occupants, which is not only uncomfortable but also wastes energy. This is because hot air tends to accumulate along ceilings due to improper circulation. Therefore, it is crucial to verify that your room allows the unit to be mounted within the ideal 6 to 7 foot elevation before installation to ensure optimal performance and comfort.

4. Too Close to Electronics

Mini splits incorporate electromagnetic components that are susceptible to interference. When these units are mounted too close to antennas, transmitters, or other electronic devices, it can lead to the corruption of signals. This proximity can result in various issues such as disrupted TV, radio, WiFi, and cellular signals, increased equipment noise, and distorted picture quality. To prevent these problems, it is essential to maintain a clearance of at least 3-4 feet from electronic devices such as flat-screen TVs, radios, computers, medical devices, or security systems. This distance helps to minimize the risk of interference and ensures the smooth functioning of both the mini split system and the nearby electronic devices.

5. Unsupported Infrastructure

When mounting a mini-split unit on walls, it's crucial to ensure that the underlying structure meets engineering specifications to adequately support the unit's weight. This support should be distributed across multiple studs or solid blocking. Inadequate support can lead to several risks including loose mounting and misalignment, vibration noises, and potential falling hazards, which could be dangerous. It's not advisable to take chances with walls of questionable strength. Consulting a professional to assess the infrastructure prior to installation is essential for ensuring safety and proper operation of the unit. This step is key in preventing any structural or safety issues related to the installation of mini-split systems.