LS Aircon Servicing Singapore

window aircon in a horizontal sliding window

How to Install a Window Aircon in a Horizontal Sliding Window

Installing a window aircon in a horizontal sliding window can seem challenging due to its unique design, but it’s a manageable task with the right tools and guidance. A window aircon provides an affordable and efficient way to cool your home and makes it an excellent choice for areas like Singapore, where hot weather is common.

This guide will walk you through the steps to effectively install a window air conditioner in a horizontal sliding window.

Tools and Materials Needed for Aircon Installation on a Horizontal Sliding Window

LS Aircon Servicing Singapore, an expert in aircon installation, aircon repair, and aircon relocation, suggests you should have the following tools and materials to install air conditioner on a horizontal sliding window:

  • Window air conditioner unit designed for horizontal windows
  • Measuring tape
  • Screwdriver or drill
  • Foam weatherstripping or insulation
  • Brackets and mounting hardware
  • Filler panel for the open window section
  • Scissors

Benefits of Installing a Window Air Conditioner

Here are some of the most common benefits of installing an aircon in a horizontal sliding window.

  1. Window air conditioners are more affordable than central cooling systems.
  2. Modern window units are energy-efficient and help you save on utility bills.
  3. They don’t take up floor space, so they are ideal for compact homes.
  4. Perfect for cooling specific rooms instead of the entire house.

How to Install Window Aircon in a Horizontal Sliding Window?

This section contains the step-by-step process to install AC in a horizontal sliding window. Let’s go through the steps.

1. Measure Your Window and Unit

First, measure the width and height of the window opening to ensure it accommodates the air conditioner. Then, compare these dimensions with your air conditioner’s specifications to confirm compatibility. If the size is mismatched, you will need to adjust the window size or decide to install the aircon on another window.

2. Prepare the Window Area

Open the sliding window fully. Clean the tracks and surrounding areas to clean the area properly.  This is essential for a seamless installation process.

3. Install the Brackets

Most window air conditioners have brackets for added support. Follow the manufacturer’s instructions to install the brackets onto the window sill or frame. These brackets will help hold the unit in place and prevent it from falling outward.

4. Position the Aircon

Carefully lift the air conditioner and place it onto the brackets. The back of the unit should extend outside the window. The front side of the aircon will remain inside the room. Ensure the unit is level or slightly tilted outward to optimize condensation.

5. Secure the Aircon

Use the provided screws or mounting hardware to secure the unit to the window frame. This step is crucial for safety and stability. This is especially crucial in areas affected by strong winds or heavy rain.

6. Seal the Open Window Space

You must note that horizontal sliding windows don’t close perfectly around an aircon. Therefore, you’ll need to seal the remaining gap. Cut a filler panel to fit the open space above the unit.

Use foam insulation to seal any small gaps. This step ensures proper installation and better cooling performance in the room.

7. Check the Power Supply When You Install a Window Aircon in a Horizontal Sliding Window

Ensure that your window aircon is plugged into a properly grounded electrical outlet. Avoid using extension cords because they are not safe to use.

8. Test the Unit

Turn on the aircon to test its functionality. Check for air leaks around the unit and ensure it operates without excessive noise or vibrations. Adjust the installation as needed for optimal performance.

Conclusion

To summarize, Installing a window aircon in a horizontal sliding window may require a few extra steps compared to standard windows, but the results are worth it.

Following the above steps, you can ensure a safe, stable, and efficient installation that keeps your home cool and comfortable in Singapore’s warm climate.

Frequently Asked Questions

Window aircon is mostly installed in the window space such that the outer part remains outside for condensation and the fan opens inside the room. You can easily install a window aircon in a horizontal sliding window using the right technique. However, you need to take the unit and window measurements before the installation.
Portable Air Conditioners are versatile and can be used with sliding windows using a window kit. The kit typically includes a hose that is vented out the window. This option provides easy installation and mobility.
Portable units are inherently less efficient. This is because much of the heat they remove from the room comes back in as it escapes from the poorly insulated exhaust hose before it goes outside. Window ACs don't have this problem since the hot air is released directly outside. Therefore, window ACs are generally more efficient than portable air conditioners.