Mitsubishi ductless mini split air conditioner installation NYC

In some sectors, the maxim “larger is always better” holds true, but not in the HVAC industry.

Many HVAC professionals will warn homeowners against oversizing their HVAC system, since it can result in a variety of undesirable consequences.

However, do the same principles apply when it comes to mini-splits? This blog expounds on this topic, so keep reading to learn more!

Is It Possible to Oversize a Mini-Split air conditioner installation?

Before discussing the ‘why’ of this issue, let’s begin by providing an answer.

You may indeed enlarge a mini-split. There is a strong probability that you may have undesirable side effects, such as short cycling, if you significantly overload it. The majority of these units have variable capacity, meaning they can vary their speed to meet demand. Instead of operating the system at full capacity to lower the temperature by a few degrees, it only operates as much as is required. For flawless ductless air conditioning installation in Queens, reach out to the experts.

Why Oversize a Mini-Split air conditioner?

There are various instances in which it may be necessary to oversize a mini-split. For instance, you may determine the required size depending on the area of the space. In certain instances, the desired size may not be available due to the room’s size.

Or, maybe your computation includes more variables. For instance, maybe numerous individuals spend substantial time in the area you want to chill.

Or maybe it is in the kitchen, where several equipment produces heat.

In this situation, there is excess heat in the room, and you will need a bigger mini-split than the room’s square footage requires.

What Happens If a Mini-Split Is Oversized?

When a mini-split is oversized, many issues might arise. If the unit is grossly oversized, the system will short cycle because it cools too rapidly to operate in a normal cycle.

This is unacceptable since the unit’s quick cycles do not provide adequate time to dehumidify the air. So, you’ll wind up in a humid, damp atmosphere.

Or, if you enlarge a mini-split system and consistently use it at maximum capacity, you may get moisture and mold problems. The same premise applies once again.

The walls, furniture, and other objects in a room retain heat.

Consequently, when a space rapidly cools, residual heat remains in the walls. There may be humidity concerns due to the extra moisture in the room. This offers the ideal conditions for mold and mildew to flourish. Seek professional assistance for air conditioner installation New York City today!

How Much Should I Oversize a Mini-Split System?

Using Manual J and Manual S, if HDD/CDD is less than 2, you may oversize the mini split system by no more than 30%. Once the HDD / CDD ratio exceeds 2, the maximum mini-split size is Estimated Cooling Load plus 15000 BTU.

Utilizing the HDD (Heating Degree Days)/CDD (Cooling Degree Days) ratio is essential when selecting the proper large mini split system. Other sites that merely provide a broad oversized ratio may mislead you into selecting the incorrect unit size. Here, you may examine your HDD and CDD.