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How Do You Size a Marine Air Conditioner

A well-sized air conditioner is a crucial component when it comes to ensuring comfort on a marine vessel. Sizing a marine air conditioner involves more than guesswork; it requires a planned approach to match the cooling capacity with the specific requirements of the ship. Let’s dive into the steps and considerations involved in this process.

Steps to Follow

Before you install your marine AC unit, you must consider various factors to ensure everything will run smoothly and in the required space. Here are the steps:

1.Calculate the Space

The first step is determining the total cubic footage of the area you intend to cool. Measure the length, width, and height of the space. Once you have these measurements, multiply them to get the cubic footage. This fundamental value serves as the foundation for selecting an appropriate air conditioner.

2.Assess Insulation and Sun Exposure

Evaluate the insulation and sun exposure of the area. Well-insulated spaces will require less cooling capacity. Additionally, areas exposed to direct sunlight will need extra cooling. Adjust the calculated cubic footage based on these factors.

3.Consider Heat-Producing Equipment

Account for their heat output if your vessel contains heat-producing equipment like ovens or machinery. Add their heat load to the cooling requirement. Failing to consider these sources can result in an undersized air conditioner struggling to maintain the desired temperature.

4.Account for Occupancy

The number of occupants can significantly impact the cooling load. People emit body heat, increasing the overall heat load in the space. For spaces with frequent occupancy, select an air conditioner with a slightly higher capacity.


Marine AC Types

Depending on your boat, there are different types of air conditioning systems with unique features for your comfort and needs: 

Split System Air Conditioners 

These marine AC systems have two main components: an indoor unit that blows cool air and an outdoor unit that releases heat. Split systems are ideal when there’s limited space inside the vessel. They provide efficient cooling and can be installed in different areas.

Self-Contained Air Conditioners 

This type of system houses all components in a single unit. Self-contained air conditioners are relatively easy to install and require minimal ductwork. They are a suitable option for ships with limited installation space.

Chilled Water Air Conditioners 

Chilled water systems use a network of pipes to circulate cool water to various air handlers throughout the vessel. They are ideal for larger vessels where precise temperature control is necessary.

Choose The Best AC Unit with Cruise RO!

Properly sizing a marine air conditioner is not a mere afterthought but a calculated process that directly affects the comfort and efficiency of your ship. Following the above mentioned steps, you can accurately determine the required cooling capacity. Additionally, choosing the right type of marine air conditioner based on your vessel’s specifications ensures optimal performance.

Here at Cruise RO, we work hard to provide affordable, cruiser-tested solutions for various cruisers’ water makers, power generation, and marine refrigeration needs. Contact us today and get the best refrigeration systems for your ship.

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