ductless mini splits Posts

Mini Split vs Central Air/Heat: Which is Right for You?

Mini Split vs Central Air/Heat: A Guide

Mini split systems and central HVAC systems often get mixed up, but there are a few big differences between the two. Understanding these differences will give you a better idea of which type of system to add to your home. And should you choose to go with a mini split system, you’ll want to study up on our free Multi Zone Mini Splits Buying Guide to find the perfect system for your needs.

Image of central air unit and mini split unit

What Are SEER & EER Ratings? An Energy Efficient AC Guide

What Are EER & SEER Ratings?

If you skim through any AC listing, you’ll notice something called a SEER rating or EER rating. Sometimes, you’ll notice both. These numbers can play a big role in the AC shopping process.

Image of energy efficient AC

But what are SEER ratings, exactly? What do they mean? What is an EER rating and how is it different? Both of these ratings are crucial to choosing an AC, but there are some key differences between them that are important to know before you purchase a new unit. We’ll talk about what these ratings mean and how to determine which air conditioning efficiency rating is right for your home.

Circuitry & Wiring Specifications for Installing Ductless Mini-Splits & HVAC Units

LG Ductless Mini-Split

LG LS120HEV1 12000 BTU Mega Series Single Zone System with Heat Pump

Ductless mini splits are one of the most popular AC choices for homeowners and businesses alike. We sell tons of mini split air conditioners each day on our website, and, on our blog, have previously written about all the benefits of and features to consider when purchasing a mini-split AC of your own.

Installing ductless mini splits requires a high level of electrical knowledge in order for the job to be done safely and without harm to yourself or the unit. For that reason, we do not recommend homeowners try to install the unit themselves. Unless you are an advanced DIYer with extensive experience in electrical work, we strongly advise you hire a professional to get the job done.

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.

NOTE: These instructions are in regards to electrical specifications only, and do not include line set installation or refrigerant set-up.

 

Step 1 – Mini-Split Shut-off box:

Run a 230/208 volt or 115 volt* dedicated line from the main break box to the area where the shut-off box will be installed next to the unit.

* Voltage depends on the system. The vast majority of mini-split units are 230/208V, but there are some that are 115V.

Step 2 – Mini-Split Wiring:

Mount the shut off box on the outside wall and connect the wires from the break box.

Electrical Shut off box

electrical shutoff box detail
208/230 Volt Shut Off Box

In order to meet code, you must have a shutoff box at the location of the unit. This makes system repairs safer and easier. Wire the two hot leads to the fused connections in the box and the ground to the provided connection. Then, reattach the faceplate and insert the on/off switch. It should be kept in the off position while you continue to work on the unit.

NEW: Ductless Mini-Split ACs from Panasonic

This has been a very exciting time for us behind the scenes at Total Home Supply. Our company has just become one of very few Internet retailers to be authorized to sell ductless mini-split systems by Panasonic! It is quite an honor, and so we would like to dedicate an entire post to letting our readers in on everything there is to know about these new additions to our website.

PANASONIC-CSME7QKUA-2

But first, a quick overview for our readers who may not be familiar with what ductless mini-split air conditioners are compared to other AC models. Mini-splits have become an increasingly popular choice for both commercial and residential spaces, particularly for spaces where a central AC system is not an option due to the infrastructure of the building or the cost of installation. Mini-splits are quiet, efficient, and compact enough to be installed with little to no disruption to the aesthetic of the space. As a bonus, many ductless mini-splits feature both heating and cooling capabilities, eliminating the need to purchase multiple units for different times of the year. All mini-split systems feature one outdoor condenser unit and a wall-mount indoor unit, which distributes the hot/cold air. Depending on how many rooms you would like to equip, mini-split air conditioners come in single- or multi-zone systems.

We at Total Home Supply have been a huge advocate of mini-split systems for years (in fact, we have one going in our office right now!), and Panasonic has equipped their products with a special set of features that only add to the convenience, efficiency, and overall operation of the mini-split system. Below are just a few of the highlights.