{"id":14818,"date":"2023-05-09T16:09:21","date_gmt":"2023-05-09T08:09:21","guid":{"rendered":"https:\/\/aircondlounge.com\/?p=14818"},"modified":"2024-03-26T12:04:34","modified_gmt":"2024-03-26T04:04:34","slug":"how-ceiling-cassette-mini-splits-work","status":"publish","type":"post","link":"https:\/\/aircondlounge.com\/how-ceiling-cassette-mini-splits-work\/","title":{"rendered":"How Ceiling Cassette Mini Splits Work"},"content":{"rendered":"\n

Ceiling cassette mini splits are one of the different types of mini splits. They work differently from other types of mini splits. Some people are considering a ceiling cassette mini split but they want to know how it works. So, I’ll explain.<\/p>\n\n\n\n

Ceiling cassette mini splits work by supplying air in multiple directions for uniform air distribution. The air is then returned via the center return grille where a washable filter can be found. A fresh air duct can be connected to the ceiling cassette mini splits to introduce clean fresh air into the space.<\/strong><\/p>\n\n\n\n

Ceiling cassette mini splits offer much more functionalities than wall-mounted mini splits. Understanding how ceiling cassette mini splits work can help you make an informed decision.<\/p>\n\n\n\n

How Mini Splits Work<\/h2>\n\n\n\n

A mini split consists of two separate units known as the indoor unit and the outdoor unit.<\/p>\n\n\n\n

The indoor unit is also known as the evaporator or the air handler while the outdoor unit is also known as the condenser or the compressor.<\/p>\n\n\n\n

Most mini splits today can heat and cool, regardless of their types.<\/p>\n\n\n\n

In cooling mode, the indoor unit is responsible for heat absorption and the outdoor unit is responsible for heat rejection. In heating mode, their responsibility reversed.<\/p>\n\n\n\n

The mini split system transfers heat between the indoor unit and the outdoor unit via the refrigerant line.<\/p>\n\n\n\n

You can choose from a few types of indoor units based on your preferences and applications. The 5 types of mini split indoor units are wall mounted, ceiling cassette, ceiling ducted, floor standing and floor mounted.<\/p>\n\n\n\n

Each type of mini split indoor unit has its own unique features and applications. To find out more, kindly read my other blog post titled: 5 Types of Mini Split Indoor Units (How to Choose)<\/a>.<\/p>\n\n\n\n

In this blog post, we’ll dive deeper into the ceiling cassette type of mini split indoor unit.<\/p>\n\n\n\n

How Ceiling Cassettes Work<\/h2>\n\n\n\n

A ceiling cassette unit mainly consists of a front panel, a cooling\/heating coil and a blower fan.<\/p>\n\n\n\n

The front panel of a ceiling cassette unit typically has 4 supply air vents shown as A, B, C & D in the below photo:<\/p>\n\n\n

\n
\"\"
Ceiling Cassette Front Panel<\/figcaption><\/figure><\/div>\n\n\n

In addition, some ceiling cassette units have additional supply vents at locations E, F, G & H (the corners). Then, the center of the front panel is an openable return grille for return air. Within the return grille, a washable filter can be found.<\/p>\n\n\n\n

By removing the front panel, the drain pan can be seen at the back as shown in the below photo:<\/p>\n\n\n

\n
\"ceiling
Ceiling Cassette Drain Pan<\/figcaption><\/figure><\/div>\n\n\n

The drain pan channels the condensate water to a corner where a condensate pump will suck the water out of the drain pan and discharge it through the external drain pipe.<\/p>\n\n\n\n

Inside the ceiling cassette body is a fan blower and a large cooling\/heating coil as shown in the below photo:<\/p>\n\n\n

\n
\"ceiling
Ceiling Cassette Blower & Coil<\/figcaption><\/figure><\/div>\n\n\n

As the fan blower spins, the air is drawn through the center return grille and forces through the cooling\/heating coil. You can see from the above photo that the inner part of the coil is dirty.<\/p>\n\n\n\n

After the air is forced through the coil, it is channeled by the casing of the ceiling cassette unit to the individual supply vents and discharged through the front panel as shown in the earlier photo.<\/p>\n\n\n\n

At the corner of the body of the ceiling cassette unit, there is an opening for a fresh air connection. A fresh air duct can be attached to the ceiling cassette unit to bring in the outside air as shown below:<\/p>\n\n\n\n

\n
\n
\"\"
Ceiling Cassette Fresh Air Opening<\/figcaption><\/figure><\/div><\/div>\n\n\n\n
\n
\"\"
Ceiling Cassette Fresh Air Diagram<\/figcaption><\/figure><\/div><\/div>\n<\/div>\n\n\n\n

These photos are taken when I was handling a project that involves more than 50 numbers of ceiling cassette units at once. We need to remove the front panel to access the cooling coil for cleaning purposes.<\/p>\n\n\n\n

By the way, if you want to learn more about mini split especially how to design it for your house, consider my Mini Split (eBook)<\/a>. You’ll learn what is Mini Split, how to choose and more importantly, spark more design ideas to improve the energy efficient of your house. But, if you need a second opinion or want someone to help you design, then you can consider my consultation service.<\/p>\n\n\n

\n
\n

Consultation Service<\/p><\/div>\n

\n

Ask me for HVAC advice such as brand selection, best model, benefits, features, placement, duct size, grille size, how to design, design check, verification and other HVAC related queries.<\/p><\/div>\n

\n \n

Consult Now<\/p><\/a><\/div><\/div>\n\n\n

Ceiling Cassette Mini Split vs Wall-Mounted Mini Split<\/h2>\n\n\n\n

Ceiling cassette and wall mounted are two different types of mini split indoor units. While I’ve dealt with many ceiling cassette units, I’ve done more with wall-mounted units. Following are the differences between a ceiling cassette mini split and a wall-mounted mini split:<\/p>\n\n\n\n