Air Conditioning Installation

Central Air Conditioning System Installation for Your Home

Donovan & Jorgenson’s NATE Certified technicians can install any of the air conditioning systems we carry in Southeastern Wisconsin.  If you’re not exactly sure what you need, or whether you need a more powerful system than what you have now, we’ll go over all your options—including financing options from GreenSky.

Before we sell you any air conditioning system, we’ll send a technician to determine the heat gain your home is subject to—which will let us know what size of air conditioning unit you’ll need for your home.

Sizing an Air Conditioning System to Your Home

It’s important to size the unit to your home because an undersized AC system won’t be able to adequately cool your home on hot days and will run up your energy bill because you’ll need to run it longer to cool your house.

An oversized unit will also cost more to run because it uses more electricity.  Another problem with an oversized compressor is that it will cool the air so quickly it will shut off before it can circulate enough air past the coils to extract moisture. Your rooms will feel humid and not nearly as cool as the temperature readout on the thermostat.

Choosing an Efficient AC System

The efficiency of an air conditioner has a significant impact on your energy costs. Efficiency is expressed by a SEER rating (Seasonal Energy-Efficiency Rating), a measurement of how many BTUs an air conditioner will remove for each watt of electricity consumed. A higher SEER rating equates to lower operating costs.

All new AC units are required by Federal law to have at least a SEER rating of 13. As you can imagine, the higher the SEER rating is, the more expensive the AC system will be. However, besides saving money on your utility bill, high efficiency units have better safety features, are quieter, and have lower voltage requirements.

Can central air conditioning be installed in a home without ductwork?

In almost every case, the answer is “yes.” If you’re looking to upgrade to a central air system and don’t have ductwork in your home, you’re probably concerned about where all the ducts will go. We’ll have to see your house to determine how the duct work can be routed, and if it’s acceptable to you. In most cases, ductwork can be hidden behind walls, in the backs of closets and run through the attic with a fairly minimal amount of drywall cutting.

Rooftop Unit (RTU) Installations for Businesses

If you’re getting by with an older commercial rooftop unit air conditioning system, you’re likely wasting anywhere from $900 to $3,700 per year in energy costs—and it’s probably not very comfortable in your building over the summer months. Replacing or retrofitting an older, inefficient RTU can keep your energy bill from going through the roof in hot weather while also keeping your building cooler inside.

Donovan & Jorgenson installs rooftop air conditioning units for single or multi-zone cooling and ventilation. We’ve chosen what we consider the best systems, based on their Energy-efficiency Ratio (EER), Seasonal energy-efficiency ratio (SEER) and Integrated energy-efficiency ratio (IEER). All the systems we sell and install meet the Federal minimum standards for commercial rooftop units.

In addition to replacing packaged units, there are a number of options for retrofit control devices which can improve energy efficiency of RTUs. By converting single-speed RTUs to variable-speed units, these controllers can reduce energy costs by as much as 70%. Many offer additional features such as fault detection and diagnostics, remote monitoring and variable-speed condenser fan and compressor control.

Contact Donovan & Jorgenson online for information on air conditioning system installation.
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