Nexus 5 - How to downgrade from Android 5.0 Lollipop to Android 4.4.4 KitKat.
The cost to replace Freon varies by the amount needed since it is charged by the pound. The typical charge starts with an $89 service call to visit the home and inspect your AC system. From there, the cost to add Freon is $68 for the first pound and $58 for each pound thereafter.
Installing a new central air conditioner can cost between $3,000 to $10,000 or more. In addition to the initial purchase price, you will have ongoing costs in terms of your monthly electric bill and maintenance costs.