If you are anything like me, the idea of installing an air conditioner yourself is very daunting and something you should probably hire a professional to do. But if you are also anything like me, you would LOVE to know how to install a mini split yourself and save tons of money in the process.
Well – now having done it myself 5 or 6 times – I’ve got good news for you. When it comes to installing mini-splits, it’s actually not as hard as it seems. Unlike conventional units, mini splits ship to you pre-charged with freon, so there’s no need to worry about any of that. As long as you have the equipment and tools you need (which is also not that expensive), you CAN do this on your own. And hopefully my comprehensive guide will give you the confidence you need to tackle this moderate-difficulty DIY project.
How to Install a Mini Split:
Tools and Equipment needed:
- Crescent wrench
- Channel lock pliers
- Phillips and flat screwdriver
- Hammer
- Stud Finder
- Screw Gun
- Drill
- 2.5-in hole saw
- Allen Wrench set
- Vacuum Pump
- Pressure Gauge
- Mini split adapter for pressure gauge connection
Notes on Tools & Equipment:
Stud Finder – This is for finding a wall stud to hang your mini split’s indoor unit on. You could just use a hammer and finish nail if you don’t want to buy this tool.
Hole saw – a 2.5 in or 3 in will work. Your house’s outdoor walls will determine the type of hole saw(s) you need. If you are drilling through masonry, cement board or metal, make sure to get the saw that’s appropriate.
Vacuum Pump and pressure gauge – AC tech guys have special equipment for doing this kind of work, but all you really need is the kind you can buy at any tool or auto-parts store. The ones I use here are from Harbor Freight.
Mini Split Adapter – This little gem is absolutely essential for mini split work. It adapts the standard gauges to the unique size on the mini-split’s service port.
Materials needed:
- Mini Split
You can buy these anywhere nowadays. The one I am installing in this guide is a two-room unit I purchased on Amazon. I have also purchased directly from manufacturers websites before. - Finish nail
To help with finding your wall stud - Screws
- Pavers or cinder blocks / Pea Gravel
These are only needed if you do not already have a suitable location to place your outdoor unit. - Dish soap
- Masking Tape
I’ve broken this guide on How to Install a Mini Split down into three articles, so you can take the process one step at a time. In the following pages you will learn:
- Installing the indoor unit
- Setting the outdoor unit and making the connections
- Vacuuming the lines and charging with freon
Let’s get started!
How to Install a Mini Split – Our Step-by-Step Guide
Mini Split Install – Vacuuming and Charging
Mini Split – Outdoor Unit & Making the Connections
Mini Split – Installing the Indoor Unit
