Split system air conditioners are a popular choice for cooling and heating homes. They are efficient, effective, and economical, with reverse-cycle technology providing both heating during winter and cooling in summer.
So, you’ve done your research, compared the benefits of ducted vs split systems, and decided that a split system is the right option for your home’s unique needs.
But before you jump into a DIY installation, it’s important to be aware of the potential risks and complications you might face!
For example, incorrect wiring could lead to electrical shocks or even fires, and mishandling refrigerants can cause serious health risks and environmental damage. These are just a few examples of the hazards that come with DIY installation.
While it might seem like a cost-saving project, there are key factors that make hiring a professional a much safer and smarter option in the long run.
In this article, we’ll look at some of the prep work you may be able to handle yourself, and more importantly, tasks where you will need a licensed professional. Safety and efficiency are paramount, so if something feels beyond your expertise, it likely is!
What are the steps to install a split system air conditioner?
The process can generally be split into two:
- Tasks you might be able to manage yourself, and
- Those that should always be left to licensed professionals
We’ll guide you through both, so read on to first learn about the basic prep work you can handle with the right tools, and the more technical and safety-critical steps that require professional expertise.
Understanding the division between these tasks is key to ensuring a safe, efficient, and compliant installation.
What you might be able to do yourself when installing a split system
Warning! While some parts of the installation process can be DIY-friendly, such as preparing the site and mounting components, anything involving electrical connections or refrigerants should be left to the experts.
Choosing the right air conditioning unit
- Measure the space to determine the appropriately sized unit.
- A unit too small won’t heat or cool effectively, while an oversized unit wastes energy.
- Research and select an air conditioner brand / unit with the desired features, such as remote control, timers, or air purification.
- TIP: Look at energy efficiency ratings to save on running costs.
Selecting an ideal location
- Decide on the best location for the indoor and outdoor units.
- The indoor unit should be on a sturdy wall away from direct sunlight and heat sources to work efficiently.
- Ensure the outdoor unit has proper clearance for airflow and maintenance access.
- The outdoor unit should be placed away from plants and other obstructions.
Mounting the bracket for the indoor unit
- Securely mount the bracket on the wall where the indoor unit will be installed.
- Use a level to ensure it’s straight and anchor it firmly to support the unit’s weight.
Drilling holes
- Drill a hole through the wall for the refrigerant piping, drain pipe, and electrical wiring.
- Ensure the hole is slightly slanted downward toward the outside to prevent water from entering.
Placing the outdoor unit
- Position the outdoor unit on a solid base, such as a concrete slab, to maintain stability.
- The base should elevate the unit to avoid water accumulation and provide proper drainage.
- Ensure the outdoor unit has proper clearance around it for airflow. This prevents overheating and ensures efficient operation.
Connecting drain hoses
- Connect the drain hoses for both the indoor and outdoor units. Ensure they are appropriately routed to allow for efficient water drainage.
- Secure the hoses to prevent leaks and blockages. Direct the hoses away from any pathways to avoid water damage or hazards.
By handling these preparation steps yourself, you may make the installation smoother.
But remember, the technical parts of the job are best left to licensed professionals for optimal safety and performance!
Installation steps that require a licensed professional
While you can handle some parts of the process, the following tasks must be completed by qualified experts to ensure safety and compliance.
Electrical wiring
- A licensed electrician must connect the electrical components to ensure compliance with safety standards.
Refrigerant piping and handling
- A licensed HVAC technician or refrigeration mechanic is required to connect and charge the refrigerant piping.
- They will handle refrigerants safely and in accordance with legal requirements.
Testing and commissioning
- A professional should perform the initial system tests to check for leaks, verify electrical connections, and ensure the system operates correctly.
By taking care of the prep work yourself, you may be able to reduce costs. Leave the critical, technical aspects to licensed professionals to ensure your installation is completed safely and legally.
Why hiring a professional is always the safer and optimal option
While the steps above provide a basic outline for installing a split system air conditioner, with some you could do yourself, there are several critical reasons to consider professional installation:
Safety concerns
Electrical hazards
It’s crucial to note that incorrectly wiring your air conditioner can lead to serious electrical shocks or even fires, posing a significant risk to your safety and property.
Refrigerant handling
Mishandling refrigerants can cause health issues and environmental damage.
Structural risks
Improper installation can damage your walls or create structural issues.
Insurance issues
Void warranties
DIY installation often voids the manufacturer’s warranty, leaving you unprotected if something goes wrong.
Home insurance
Improper installation can void your home insurance policy, leaving you liable for any damages or accidents.
Expertise and efficiency
Qualified electricians and HVAC contractors
These professionals have the necessary training and experience to install the system safely and efficiently, giving you confidence that the job is done right.
Regulatory compliance
Certified installers ensure the system complies with local building codes and regulations.
Time and effort
Professional installers can complete the job quicker and with less hassle, allowing you to enjoy your cosy home sooner.
Additional considerations for a safe and efficient installation
Environmental impact
Professional installers can handle and dispose of refrigerants properly, minimising environmental harm. They also ensure your system is running efficiently, which can reduce your overall energy consumption and carbon footprint.
Long-term maintenance
A professionally installed system is likely to have fewer issues over its lifespan. Experts can also guide you on maintaining the unit, scheduling regular check-ups, and identifying potential problems before they become major repairs, providing long-term reassurance for your investment.
Cost implications
While DIY installation might save you money upfront, it’s important to consider the potential long-term costs. Installation mistakes can lead to higher energy bills and costly repairs. Additionally, the potential for voided warranties and insurance complications can lead to significant financial risk.
So, should I try installing my own split system air conditioning?
While installing your own split system air conditioning might seem like a way to save money, the potential risks and complications often outweigh the benefits.
By choosing a qualified air conditioning specialist, you ensure your system is installed correctly and safely and gain peace of mind. You know that your investment is protected, you’re avoiding potential risks, and you’re benefiting from the expertise and efficiency of professionals.
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