Choosing the right AC system for your Phoenix investment property can be a daunting task! There's no (one) definitive answer to what type of system is best – it depends on a number of factors, including size and cost. But if you know what to look for, you can make an informed decision that will benefit both you and your tenants.

First off, consider energy efficiency. When it comes to air conditioning systems, the higher the SEER rating (Seasonal Energy Efficiency Ratio), the better. A SEER rating measures how much energy is used compared to how much cooling output is produced; so the higher this number, the less expensive it will be to run your air conditioner. You should also consider whether or not you want a unit with variable speed technology – this can potentially lower operating costs even more by automatically adjusting its output depending on current temperature requirements in your building!

Next up, think about noise levels. If you're installing an AC system in a rental property where tenants might be living nearby, then sound levels are important as well – nobody wants loud noises coming from their neighbor's unit! Look for models that offer low-noise operation; these are typically designed with special features such as insulated cabinets and quiet fan motors. It's also worth checking out any reviews or ratings online to get an idea of how loud each model actually is once installed and running.

Finally, remember there's more than just cost involved when selecting an AC system for your investment property in Phoenix: warranty coverage may also come into play here too! Many manufacturers offer extended warranties on their products which can provide peace of mind if something does go wrong down the line. Make sure you read through all terms and conditions carefully before deciding on a particular brand or model – after all, having reliable back-up support could save you time and money in future repairs.

All things considered, choosing the right AC system for your Phoenix investment property isn't easy but it doesn't have to be overwhelming either! By taking into account factors like energy efficiency, noise levels and warranties when making your selection, you'll be able to pick out a unit that suits both your budget and needs perfectly – allowing everyone involved in the process breathe easier knowing they're getting value for their money!