Air Conditioning

The top of an air conditioner.

ACS Air Conditioning Services is your #1 HVAC contractor in Tucson, AZ, and the surrounding communities. We are the leading company for all of your air conditioning needs. If you need repairs, maintenance, or a brand new system installed, the technicians at ACS Air Conditioning Services are the qualified and professional crew for the job.

We provide the highest quality service for your air conditioner. We also aim to educate and inform our customers. Informed decisions are good decisions. We want you to feel confident we are qualified to perform the service for which you are hiring us.

Air Conditioning Basics

The four main components to your air conditioner are:

Condenser: The condenser is the outside metal unit and where the gas from the compressor is condensed into a liquid. The gas entering the condenser is very hot. The temperature is then lowered, so the gas can convert back to a liquid.

Compressor: The compressor is inside the condenser. It circulates the pressurized refrigerant, to concentrate the heat, and changes the low pressure gas to high pressure.

Evaporator: The evaporator is the part of the system inside the home. In simple language, it absorbs the heat from your home.

Expansion Valve: The expansion valve controls the amount of refrigerant in your system.

All of these pieces are connected by a copper tube that handles refrigerant, creating a closed loop. Heat is collected in the evaporator, sent outside to the condenser. The heat is removed, and the cool air is recirculated back into your home.

AC Facts

An Air Conditioner Doesn’t Create Cool Air.
What happens in the AC process is actually the removal of heat from the air. Your AC uses a chemical called refrigerant to remove heat and transfer it outside. The warm air runs through the lines and coils in your unit and goes from liquid to gas and back again. During this process, the refrigerant removes the heat and transfers it elsewhere so that when the air comes out the other side, it is cool.

Your AC Will Remove Humidity.
Lower humidity helps the overall comfort level in your home by making you feel cooler, even if the temperature is the same.

Your Air Filter Needs To Be Checked And Replaced Every Three To Six Months.
(depending on the manufacturer’s recommendations)
A dirty air filter restricts your air flow, which reduces efficiency, costing you money, and over time can put stress on your unit and could cause a costly repair.

Maintenance, Maintenance, Maintenance.
Your air conditioner needs regular checkups to keep it running in tip-top shape. Having regular annual preventative maintenance will bring your system longer life and fewer breakdowns over all.

The Seasonal Energy Efficiency Ratio (SEER) measures air conditioning and heat pump cooling efficiency, which is calculated by the cooling output for a typical cooling season divided by the total electric energy input during the same time frame. A higher SEER rating means greater energy efficiency.

At ACS Air Conditioning Services, we provide all the services you need to keep your AC running in top-notch shape. Call us at 520-230-5668 for repairs, maintenance, or new-system installation.

Need Air Conditioner Service?

Contact the experts at ACS Air Conditioning Services.

Call us at 520-230-5668!

Air Conditioner Installation in Oro Valley, AZ 85737

“Exceptionally pleasant. Technically proficient. Neat.” – Jennifer L.

Air Conditioner Repair in Oro Valley, AZ 85737


– Mark H.

Air Conditioner Maintenance in Other, AZ 85739-2014

“Oh Manny is the Best ACS Service Tech we have had. We trust him implicitly, without question. His thoroughness and standard of excellence are over the top. Manny answers questions succinctly and accurately, his explanations are understandable by a non technical person. Manny shows photos of what he was working on and explains what he did and where it fits into the HV/AC System. We admire him for his technical skill set, and his friendly approach to us. He has been doing our maintenance for several years. We always hope he will appear when we are scheduled for service or a problem.”

– Melinda R.

Air Conditioner Maintenance in Tucson, AZ 85718

“On time and a job well done.”

– Susan B.

Air Conditioner Maintenance in Tucson, AZ 85710

“On time and quick service.”

– Mark B.

Air Conditioner Maintenance in Oro Valley, AZ 85737

“Dave was friendly knowledgeable and accommodating with the activity in and around the house”

– Sal A.

Air Conditioner Repair in Marana, AZ 85653

“Travis came quickly, diagnosed and solved our problem right away. He explained everything clearly and helped us navigate our choices. He was thorough and got everything cooling again!
Thank you!”

– Jaime B.

Air Conditioner Repair in Tucson, AZ 85737

“Manny was professional, friendly and knowledgeable. Explained everything, answered questions and was clear. ACS responded quickly when no one else did. Would highly recommend them.”

– Laura B.

Air Conditioner Installation in Other, AZ 85739

“The installation team, consisting of William and Eddie, arrived at 6:20 a.m., as promised. They worked straight thorough until 7:20 p.m. installing my new 5 ton Daikin A/C system. Both men were very professional, starting to work immediately upon arrival. They did not rush the job, instead being very careful to do everything properly and to the highest standard. They were very courteous and easy to talk to. They answered all my questions (I only bothered them a lot!) and, when asked, explained what they were doing and the purpose. They were very careful and neat, and cleaned up the work areas perfectly when they finished, hauling away all debris and trash. This is the fourth A/C system I've had installed in my homes, the first by ACS. My entire experience with ACS has been by far the best, easiest, least stressful and most satisfying of all. Both William and Eddie, and Kevin and Ryan, were all excellent and responsive, and all were professional and a pleasure to work with. I would recommend ACS and these fellows to anyone considering purchasing a new A/C system. I would give them 10 stars, but five is the maximum! Ian F, a very satisfied SaddleBrooke homeowner.”

– Ian F.

Air Conditioner Maintenance in Tucson, AZ 85715

“Excellent friendly service.”

– Douglas V.

ACS Air Conditioning Services proudly provides HVAC service to Catalina Foothills, Continental Ranch, Dove Mountain, Green Valley, Marana, Mount Lemmon, Oro Valley, Picacho, Red Rock, Rillito, Sahuarita, Tucson, Vail, and the surrounding communities. Visit our service area page for more coverage details, call us at 520-230-5668, or request service online today.