Mini-Split Wiring Guide - What You Should Know About Mini Although they are easier to install than central air conditioning, they are not “plug ‘n play” like window units. Mini split systems require a dedicated electrical line into the building’s electrical panel. Here’s what you should know about mini split wiring in order to ensure a worry-free system for years to come: Electrical Service Installing a Mini Split Air Conditioner | Wiring A Mini Looking for instructions on wiring a mini split air conditioner? When wiring a mini split its important you follow the manufactures instructions as well as your local laws. In most cases you will be running power out to your compressor and installing a safety disconnect box Electrical Specs for Installing Ductless Mini-Splits But even professionals have to learn the ropes, and so if you are an electrician who simply has not undertaken a mini split installation project before, this post is for you. Here, we offer a step-by-step guide to everything you need to know about the electrical specifications for installing ductless mini splits.