Getting Optimal Supply Air Temperature in Mini-Split Systems

Are you experiencing discomfort and inefficiency in your mini-split system's airflow? One of the most significant factors that cause this is the supply air temperature. If the amount of air fed into the system is inadequate, it won't be able to perform at its best, causing higher energy bills and decreased comfort levels.

Making improvements might seem daunting, but it's achievable. In this blog post, we'll discuss getting optimal supply air temperature in mini-split systems.

Understand the Appropriate Supply Air Temperature

While ductless mini-splits improve your home's air quality, the ideal supply air temperature for mini split systems varies depending on the indoor and outdoor temperatures, the size of the room or building, and the cooling or heating load required. Generally, a supply air temperature of 65 to 68 degrees Fahrenheit is suitable for cooling while one between 90 to 105 degrees Fahrenheit is ideal for heating. However, you must also ensure that the temperature rise or drop value doesn’t exceed the manufacturer's recommended range.

Clean the Unit's Filters Regularly

Dirty filters mean that your mini-split system has to work harder to provide optimal airflow. The clogged air filters restrict airflow, causing the evaporator's coil to freeze and block air further. Regular maintenance, including cleaning or changing the filters, is essential for optimal supply air temperature. If possible, schedule a maintenance plan with a professional to avoid costly repairs in the future.

Check the Refrigerant Charge

The refrigerant charge is a crucial aspect to consider in mini-split systems. A low or high refrigerant charge can cause the system to operate inefficiently, leading to suboptimal supply air temperature. A professional HVAC technician can ensure the refrigerant charge is at the correct level. They'll also check for leakages and repair them to prevent future problems.

Place the Unit in an Ideal Location

The location of your mini-split system can impact the supply air temperature. This means installing the unit in areas with poor airflow or high heat sources will lead to inefficient cooling or heating. To avoid this, ensure that the air handler is in a location that permits unrestricted airflow. Also, don't place the unit near heat sources, direct sunlight, or in tight spaces that restrict the system's efficiency.

Consider Installing a Zoning System

Mini-split systems provide individual temperature control, but the addition of zoning systems provides even better control. Zoning systems enhance airflow efficiency in specific parts of the home or building, providing the optimal supply of air temperature throughout the space. They mitigate temperature variations in high or low-occupant areas and reduce energy consumption, leading to cost savings.

Maximize Your Energy Savings

An optimal supply air temperature in your mini-split system reduces energy demands and helps create a more comfortable living or working environment. Following the above tips will help ensure your mini split system performs at its best and avoids costly repairs. Remember—energy efficiency starts with you!