6 Air Conditioning Installation Mistakes to Avoid

While investing in an air conditioning unit might seem like a simple decision, the installation process is complex. Mistakes during this process, often arising from misconceptions or oversights, can lead to inefficiencies, increased costs and reduced lifespan of your unit. In this guide, we'll explore six common mistakes during air conditioning installation that you should avoid.

1.   Choosing the Wrong Size Unit for Your Space

There is a common misconception that a larger unit will cool faster and a smaller unit will save on energy bills. Both assumptions can lead to costly mistakes. If the unit is too large, it can cause short cycling, which can wear out the system prematurely and fail to properly dehumidify your space.


Conversely, a smaller unit will have to work overtime, leading to increased wear and higher energy consumption. Ensuring you select the right size based on accurate calculations is important to your unit’s performance and longevity.

2.  Ignoring Proper Ventilation and Airflow

  • Airflow Obstruction: Reduced airflow can strain the system, leading to inefficiency and a reduced lifespan.
  • Dust and Debris: Without proper ventilation, dust can accumulate, impairing the system's efficiency and potentially harming indoor air quality.
  • Increased Energy Bills: Poor airflow can cause the unit to work harder, leading to higher electricity costs.
  • Impaired System Health: Components might wear out faster if airflow isn’t optimised.

3. Overlooking Maintenance Considerations

Maintenance is not just an afterthought; it's an ongoing commitment to the well-being of your air conditioning system. That’s why it’s important to have a clear understanding of a unit’s maintenance needs. Ignoring these requirements can lead to the accumulation of dust, clogged filters and accelerated wear and tear on its components.

4. Incorrect Placement of Indoor and Outdoor Units

  • Exposure to Sunlight: Units placed in direct sunlight can overheat, leading to inefficiency and shortened system life.
  • Limited Clearance: Units placed too close to walls or obstructions can restrict airflow, straining the system.
  • Elevation Issues: Especially for outdoor units, placement on uneven ground can lead to drainage problems and reduced efficiency.

5. Failing to Insulate and Seal Properly

A perfectly functioning air conditioning unit can still falter if the room or space it serves isn’t insulated or sealed correctly. Gaps, cracks and poor insulation can let the cool air out, forcing your AC to work harder than necessary. 

6. Not Consulting a Professional Installer

  • Informed Choices: The intricacies of AC installations go beyond just following a manual. From understanding airflow dynamics to optimal placement, there's a lot to consider.
  • Safety First: Incorrect installations can lead to electrical and structural hazards.
  • Long-term Efficiency: While DIY can be tempting, small mistakes can lead to long-term inefficiencies, necessitating future repairs or replacements.

Make the Right Choice with Davies Refrigeration & Air Conditioning

At Davies Refrigeration & Air Conditioning, we understand the unique challenges and opportunities when it comes to ensuring optimal cooling. From guiding you through the selection process to providing maintenance services, our commitment is to ensure that you avoid the mistakes discussed above. Reach out to us today for more information.

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