Wall-mounted air conditioners, often referred to as mini-split systems, are an excellent choice for residential cooling. They offer efficient cooling, are relatively easy to install compared to central air conditioning systems, and can be a great option for homes without existing ductwork.
These ductless units are much simpler and quicker to install, and you can even do it yourself if you have the right tools. To install a wall-mounted air conditioner, you need to set up the cooling unit inside your home and the condenser and compressor unit outside. Once these units are in place, you connect them with piping and power cables, and your AC system is ready to use.
If you’re unsure about installing a wall-mounted air conditioner, keep reading. This Blog will guide you through the step-by-step process. With this guide, you can install your system quickly and safely, minimizing risks. Stay with us until the end for a comprehensive understanding of the installation process.
Step-by-Step Installation Process
Site Inspection And Preparation
Before starting the installation, a thorough site inspection is essential. This involves selecting the optimal location for both the indoor and outdoor units. For the indoor unit, choose a spot that allows for even air distribution, typically high on the wall, away from direct sunlight and other heat sources.
For the outdoor unit, ensure it is placed in a well-ventilated area on a solid base to minimize vibrations and noise.
Select The Indoor Installation Area
Choosing the right spot for the indoor unit is crucial for optimal performance. The ideal height for a wall-mounted AC unit is about 2.1 meters above the ground. Ensure there is about 6-12 inches of space on each side of the unit for proper airflow.
The location should also allow easy access for drilling a hole to connect the pipes from the indoor unit to the outdoor unit.
Install The Mounting Plate
Once the location is selected, the next step is to install the mounting plate. Hold the mounting plate against the wall and use a level to ensure it is perfectly horizontal. Mark the positions for the screw holes with a pencil, then drill the holes and insert plastic anchors. Secure the mounting plate to the wall with screws, ensuring it is firmly attached.
Drill An Outlet Hole
The next step is to drill an outlet hole for the pipes and cables. Choose a spot where there are no electrical wires or pipes inside or behind the wall. Using a drill or keyhole saw, create a 7-8 cm hole. The hole should slope slightly downward to facilitate adequate drainage.
Check Indoor Electrical Connections
Open the front panel of the indoor unit and remove the cover to check the electrical connections. Ensure that the wires are connected to the screw terminals in the correct sequence. This step is crucial to make sure all communication wires are secure and properly connected.
Connect Pipes And Cables to the Indoor Unit
Run all the cables and pipes through the outlet hole. Secure the copper pipes, cables, and drainage pipes using tape. Place the drainage pipe at the bottom to ensure free water flow. Each line is pre-insulated, so there is no need to add extra insulation. Minimize the bending of cables and pipes to maintain cooling efficiency and avoid systematic issues.
Mount The Indoor Unit
Lift the indoor unit, preferably with the help of another individual, and align the connections on the back of the unit with those on the mounting plate. Press firmly to make a secure connection. Tilt the unit 2 to 3 degrees backward to ensure smooth water flow out of the drain pipe.
Also Read: Different Sizes And Capacities Of Wall-Mountable ACs
Choose A Suitable Place For The Outdoor Unit
Find a suitable place for the outdoor unit that is away from direct sunlight, heat, and dust. The location should be within 50 feet of the drilled hole to ensure the piping and cables can be easily attached. Avoid placing the unit near radio or TV antennas to prevent interference.
Lay a Concrete Pad Or Fix The Brackets On The Exterior Wall
Decide whether to place the outdoor unit on a concrete pad or mount it on the wall using brackets. If using brackets, drill the holes and ensure the bracket is horizontally aligned before securing it. If using a concrete pad, ensure the surface is flat and even.
Avoid placing the unit on the grass to prevent shifting due to its weight.
Mount The Outdoor Unit
When mounting on the wall, ensure the air conditioner aligns with the screw holes on the bracket. The unit can be heavy, so it is advisable to lift it with assistance. For securing the unit on a concrete pad, place a rubber cushion underneath to minimize vibrations and use anchor bolts to secure it firmly.
Connect The Wires And Piping
Open the cover of the electrical ports on the outdoor unit and make the necessary wire connections, referring to the connection diagram. Use flare nuts to connect the copper pipes, linking the indoor unit to the outdoor unit. Finally, connect the power supply to the designated outlet.
Final Adjustments And Maintenance Tips
After completing the installation, bleed the air from the refrigerant circuit, fix the piping with clamps, and seal the hole in the wall with polyurethane foam. Regular maintenance is essential to keep your wall-mounted AC running efficiently.
Clean or replace air filters regularly, inspect both indoor and outdoor units for wear or damage, and schedule annual professional maintenance to ensure optimal performance.
About Pro West Heating And Air Conditioning
At Pro West Heating and Air Conditioning, we pride ourselves on providing top-notch HVAC services to keep your home comfortable throughout the year. With years of experience and a team of certified technicians, we offer comprehensive maintenance, repair, and installation services tailored to meet your specific needs.
Whether you’re preparing your air conditioner for extreme weather or need emergency repairs, we’re here to help. Trust us to keep your HVAC system running smoothly, efficiently, and reliably. Contact us today for more information.