When the temperature starts to rise, a portable air conditioner can provide the cooling relief we need. Unlike traditional AC units that require permanent installation, a portable model like the DREO AC515S is easy to set up, move around, and store when not in use - offering both flexibility and convenience. But if you've never installed one before, you might be wondering: How do I set this up properly? Will it fit my window? What if I don't seal it properly?
No worries - we've got you covered. In this guide, we'll walk you through the installation steps. Whether you have a hung window or a sliding window, this process is straightforward and ensures optimal cooling efficiency. Let's dive in.
Step-by-Step Guide to Installing the DREO AC515S and AC516S
Preparing the Window Panel
1. Measure your window opening
Check the dimensions of your window opening. The AC515S and AC516S fit standard windows with openings between 18" and 53" (45 cm - 134.6 cm), including both hung and sliding windows.
Tip: Measure the width (for hung windows) and the height (for sliding windows) between the frames of the opened window.
2. Select the Window Panel to use
The unit includes four extension panels to accommodate various window opening sizes.
Below is a chart to help you choose the correct panel based on your window dimensions:
| Window Opening Size | Panels to Use | |||
| Window Extension Panels |  |
 |
 |
 |
| 18" | Window Panel A | Extension Panel B | Extension Panel C | Extension Panel D |
| 18.1" - 24.8" | ✅ | |||
| 24.8" - 33" | ✅ | ✅ | ✅ | |
| 33" - 46.5" | ✅ | ✅ | ✅ | |
| 46.5" - 53" | ✅ | ✅ | ✅ | ✅ |
Tips:
For windows smaller than 18", cut Panel A to fit.
For windows larger than 53", contact DREO customer support.
3. Assemble the panels
Align the back side slot with the panel's butterfly bolt.
Tips: The butterfly bolt must be inserted into the backside slot before installing the panel on the window.
Installing the Window Panel and the Air Conditioner
1. Install the Adhesive Foam Seals
Cut the adhesive foam seals to proper lengths, peel the back side, and attach them to the window frame and sash as shown.
Tips: It is recommended to use non-adhesive foam for the bottom seals.
2. Install the window panel
Place the panel on the window and adjust the extension according to the opening length.
Tips:
- Make sure both panels are facing the front.
- You can add adhesive foam around the panel for a more secure fit into the window.
- Make sure that the exhaust hole is not obstructed by foam or other objects.
3. Secure the panels
Secure the panels by tightening the butterfly bolt and closing the window.
4. Install Non-Adhesive Foam Seals
Cut a non-adhesive foam seal to the proper size and seal gaps to prevent air and insects from getting into the room.
5. Attaching the Hose to the Air Conditioner
Align the hose inlet with the slots over the air exhaust housing outlet to assemble.
6. Attaching the Hose to the Window
Attach the vent hose to the cutout on the window panel. Use the included screws to secure it.
Tips:
- Place the air conditioner at least 20" (50cm) away from walls or other objects
- To ensure optimum performance, DO NOT overextend or bend the hose.
7. Final Check Before Use
Once everything is set, plug in your AC515S, power it on, and choose your cooling mode. Check for gaps and ensure the exhaust hose is secure. Now, enjoy instant cooling!
Final Takeaway
Portable means easy mobility and flexibility - no permanent installation required. With the AC515, you're not tied down - you get quick, efficient, hassle-free cooling that adapts to your space. Experience the ultimate in flexible comfort and beat the heat on your own terms with the DREO portable air conditioner collection.
