What Size Wire For Mitsubishi Mini Split

I go over how to connect the power wires from the discon.

What size wire for mitsubishi mini split.

Since these systems need to be hardwired into the electrical service panel be sure the breaker panel is properly sized and can handle the additional voltage. What size system do i need. I asked the builder of the house to prewire for the minisplit. If you are still not sure give us a call at 877 770 3548.

In this installation video i show how to wire in a mini split air conditioner and heat pump system. Use a 15a breaker with 14awg wire 3 w g unless you don t need a service outlet at the disconnect the rule for an air conditioner is that you need to use wire that s fat enough to handle the unit s maximum operating current as given by the minimum circuit ampacity and you cannot use a breaker larger than the maximum overcurrent protection device max. Ductless mini split air conditioner help how to size my system. Using highly advanced technology mitsubishi electric cooling and heating makes some of the best ductless air conditioning systems on the market.

The wire gauge needed will be in the instructions with common sizes for mini split units being 10 12 gauge. If you re considering a ductless split system installation you probably have some questions. While most units will be 10 12 gauge be sure to read the specifications to get the correct size wire. The sizing chart below is useful to help you determine your approximate central ductless mini split air conditioner size requirements.

Wiring a disconnect box to mini split disconnect boxes are simple to wire up with power coming in and going out. Some small 9k 12k btu systems may require a 110 volt service but most will require 220 volts or more. I am installing an 18000 btu mitsubishi mini split in the room above my garage. In order to size your mini split correctly you will need to know the square footage of the room and check it against our table.

Each indoor unit will be capable of providing a set number of btu s of cooling and heating power. Currently i have a 220v 30 amp breaker with 10 awg romex. Now that the house and the bonus room are complete i checked and the builder only ran a 12 2 wire 2 insulated wires and a bare ground. 6 000btu 5 ton 12 000btu 1ton.

Depending on the size and model mini splits have specific power requirements. To size your mini split air conditioner the most important thing you need to know is the square footage of the room you re looking to cool and or heat.