How do Ceiling Cassettes work?

The HVAC Outlet is proud to offer ceiling cassette mini split systems. We are proud to offer the best pricing on these mini split systems. The available brands for these products are: Rheem and MrCool.


Ceiling cassettes are a type of air conditioning unit that is mounted in the ceiling of a room or space. They are commonly used for both residential and commercial applications. Here’s a basic overview of how ceiling cassettes work:

  1. Installation: Ceiling cassettes are installed in the ceiling, and only the decorative panel or grille is visible. The main body of the unit is hidden above the ceiling, providing a discreet and aesthetically pleasing appearance.
  2. Air Circulation: These units operate by drawing in warm air from the room through the bottom grille. The warm air is then passed over cooling coils within the unit.
  3. Cooling Process: The cooling coils contain a refrigerant that absorbs the heat from the incoming air, causing the air to cool down. The refrigerant, now in a gaseous state, is then pumped outside to release the absorbed heat.
  4. Air Distribution: The cooled air is then circulated back into the room through the four sides of the unit’s grille. This creates an even distribution of cooled air throughout the space.
  5. Control and Settings: Ceiling cassettes usually come with remote controls or wall-mounted control panels that allow users to adjust the temperature, fan speed, and other settings.
  6. Ventilation Options: Some ceiling cassettes also offer ventilation options, allowing fresh outdoor air to be mixed with the conditioned air for improved air quality.
  7. Heating Function (optional): Some ceiling cassettes are equipped with a reverse cycle, allowing them to provide both cooling and heating functions.

Ceiling cassettes are popular for their ability to provide efficient and even cooling or heating without occupying valuable floor or wall space. They are suitable for various room sizes and configurations, making them a versatile choice for climate control.

Is a CEILING CASSETTE best for your job

Whether you need a ceiling cassette air conditioning unit depends on various factors, including the specific requirements of your space, aesthetic preferences, and installation considerations. Here are some factors to consider:

  1. Space Configuration: Ceiling cassettes are often chosen for spaces where floor or wall space is limited. If you have a room with limited wall space or specific aesthetic preferences, a ceiling cassette might be a suitable choice.
  2. Ceiling Structure: The installation of a ceiling cassette requires sufficient space above the ceiling to accommodate the main body of the unit. Ensure that your ceiling structure can accommodate the unit and that there are no obstructions.
  3. Aesthetic Preferences: Ceiling cassettes provide a discreet and unobtrusive appearance as only the decorative panel or grille is visible. If aesthetics are important to you, a ceiling cassette might be a good fit.
  4. Cooling/Heating Requirements: Consider the cooling or heating capacity needed for your space. Ceiling cassettes come in different capacities, so choose one that matches the size of the room.
  5. Ventilation Needs: If you have specific ventilation requirements, some ceiling cassettes offer ventilation options to improve indoor air quality.
  6. Budget: Ceiling cassettes may have a higher upfront cost compared to other types of air conditioning units. Consider your budget and weigh it against the features and benefits provided by a ceiling cassette.
  7. Professional Installation: Installing a ceiling cassette requires professional expertise to ensure proper placement and connection. Consider the cost and availability of professional installation services.

It’s recommended to consult with HVAC professionals or technicians to assess your specific needs and determine the most suitable air conditioning solution for your space. They can provide guidance on the type of unit, capacity, and installation requirements that best match your requirements.

How to install a CEILING CASSETTE

Installing a ceiling cassette air conditioning unit requires technical expertise and should be done by a qualified HVAC (Heating, Ventilation, and Air Conditioning) professional. The installation process involves several steps, and it’s crucial to ensure proper placement, electrical connections, and refrigerant handling. Here’s a general overview of the steps involved in installing a ceiling cassette:

  1. Site Assessment:
    • Evaluate the space where the ceiling cassette will be installed.
    • Check the ceiling structure to ensure it can support the weight of the unit.
    • Ensure there is sufficient space above the ceiling for the unit’s main body.
  2. Unit Placement:
    • Choose the optimal location for the ceiling cassette, considering airflow distribution and aesthetic preferences.
    • Mount the main body of the unit above the ceiling, securing it properly.
  3. Cutting Ceiling Opening:
    • Cut an opening in the ceiling based on the dimensions specified in the unit’s installation manual.
    • Ensure precise measurements to accommodate the unit’s grille.
  4. Electrical Wiring:
    • Connect the electrical wiring according to the manufacturer’s specifications.
    • Ensure compliance with local electrical codes and regulations.
  5. Drainage Installation:
    • Install a condensate drain line to allow the removal of condensation produced during the cooling process.
    • Ensure proper drainage to prevent water damage.
  6. Refrigerant Lines:
    • Connect the refrigerant lines between the indoor and outdoor units.
    • Properly insulate the refrigerant lines to maintain efficiency.
  7. Air Duct Installation:
    • Install the air ducts that connect the main body of the unit to the grille in the ceiling.
    • Ensure proper sealing to prevent air leaks.
  8. Grille Installation:
    • Securely install the decorative grille or panel in the ceiling opening.
    • Ensure a snug fit to maintain the unit’s aesthetics.
  9. Testing and Commissioning:
    • Test the unit to ensure proper functioning of cooling, heating (if applicable), and ventilation features.
    • Check for any refrigerant leaks, and address them if necessary.
    • Verify that the unit is providing even airflow throughout the space.
  10. User Instructions:
    • Provide the user with instructions on operating the unit, including temperature control, fan speed adjustment, and any additional features.

It’s crucial to follow the specific guidelines outlined in the unit’s installation manual provided by the manufacturer. Improper installation can lead to reduced efficiency, operational issues, and potential safety hazards. Always consult with a licensed HVAC professional to ensure a safe and proper installation of a ceiling cassette air conditioning unit.

Where to purchase

The HVAC Outlet has these units in stock! Call us anytime! 859 209 1112.