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What Do All These A/C Efficiency Ratings Mean to Atlanta and the surrounding homeowners?

Tuesday, December 16, 2014

When it’s hot and humid outside, it can be sticky and uncomfortable inside your Atlanta home, especially when your old A/C is having a difficult time keeping up with heat gain. If you’re shopping for a new A/C, pay close attention to A/C efficiency ratings so you are sure to select the right system.

Making Sense of EER and SEER

With all the talk about A/C efficiency ratings, you may be wondering what all those numbers and acronyms mean. A/C systems are rated for efficiency using two methods.

  • Energy efficiency ratio (EER) – The EER rating is a ratio of cooling output to energy input (electricity). EER is a steady-state test performed with controlled outdoor and indoor temperatures and humidity for a set period of time.
  • Seasonal energy efficiency ratio (SEER) - The SEER rating, like EER, is a ratio of cooling output to energy input (electricity). However, SEER isn’t a steady-state test, as the seasonal indicates. Systems are tested for a simulated season with temperature, humidity and usage changes. Seasonal was added to the EER test because some A/C systems reach peak performance faster than others, giving them an advantage in a timed and limited test. SEER testing levels the playing field. Like EER, the higher the efficiency number (e.g. 17 SEER versus 20 SEER), the greater energy efficiency the system offers.

How to Use A/C Efficiency Ratings

A/C efficiency ratings can be used similarly to the MPG ratings of automobiles when comparing models. For instance, if you’re deciding between two different vehicles, and one vehicle gets 25 percent better gas mileage, you’ll have a good idea how much money you are going to save in gasoline, based on your average usage, for the life of the higher-efficiency vehicle.

EER and SEER can help you determine which A/C system is best for your home and budget. Here’s how:

  • Lifetime cost – The lifetime cost of a new A/C is the sum of the purchase price, installation expenses, estimated electricity consumption, and the projected maintenance and repairs from day one through the estimated lifetime of the A/C. If you’re undecided about which A/C to choose, ask your HVAC contractor to conduct a lifetime cost analysis of the systems. In this way, you can see the true investment, from day one, of the systems you are considering.
  • Long-term gains – High-efficiency A/C systems with better A/C efficiency ratings than a standard or mid-efficiency unit deliver two big advantages to homeowners. High-efficiency systems deliver better performance for cooling and dehumidification, and high-efficiency systems use less energy to operate. Using the figures from the lifetime cost analysis, your HVAC professional can determine the return on investment (ROI) for a higher-efficiency A/C. The ROI is the point at which a higher-efficiency unit recoups its higher purchase price in energy savings. This is an important point, because from here on out, energy savings above and beyond lesser-efficient models is money in your pocket.
  • Energy Star - The Energy Star program uses efficiency ratings to qualify A/C systems (and many other products) to bear the blue Energy Star logo. Central A/C systems must receive minimum 14.5 SEER and 12 EER to become Energy Star qualified. A/C systems must also offer advanced features not available on less efficient models of the same category to earn the Star. Moreover, the ROI must be attainable in a reasonable amount of time. If you want an efficient A/C for your South Houston home, start with Energy Star qualified systems.
  • Performance features – The analogy between A/C efficiency ratings and vehicle MPG averages stop when it comes to system output and performance. Yes, a well-designed 4-cylinder motor is going to get higher MPG than a high-performance 8-cylinder work truck, but it won’t have the horsepower and performance. With HVAC systems, however, the opposite is true. In order for a compressor and coils of to be more efficient, they must perform better — better cooling and better dehumidification — while using the same or less amount of electricity. That’s a formula you can work with.

Prepare for Installation

Your new A/C is going to work hard in our Atlanta climate, and its performance and efficiency are only going to be as good as the efficiency of your home, air ducts and advanced features. Ask your HVAC professional to do a thorough check for air leaks in the home shell and air ducts, and ask about devices that drive performance and efficiency. For more information about A/C efficiency ratings, please contact Advance Pro Refrigeration/AC Electrical.

AC Troubleshooting Tips You Need to Know

Tuesday, November 25, 2014

A malfunction in your air conditioning system during the summer can be a serious problem, especially during the hottest part of the season. While air conditioner repair may be an urgent need, there are some instances that only require a little bit of troubleshooting to resolve. It’s important to evaluate the symptoms and do some preliminary investigation to determine whether the issue is really a minor problem you can handle without professional service. Following are some common problems and troubleshooting steps to help.

Your Air Conditioner Won’t Operate

You may be facing the complete replacement of a system that won’t operate, but there are some simple situations that may also cause a unit’s failure to turn on. Check the following before you do anything else:

  • Thermostat – Are your settings correct? Be sure that your control is set for cooling and that the programmed temperature is lower than the current temperature in your home or office. If this doesn’t resolve the issue, verify that your batteries are good by testing them or trying fresh batteries in the unit. A bad thermostat could also be the problem, requiring professional testing.
  • Check electrical connections and the fuse box – A tripped fuse or pulled plug can be remedied easily.
  • Air filter – A filter caked with dirt may lead to a variety of problems such as failure of the system to operate. Make a change if necessary.

If these checks don’t resolve the issue, contact your AC service for assistance.

Poor Airflow

There are several possible explanations for low air pressure from your vents. Check your air filter first, changing as needed. You should start the cooling season with a new filter, and you should check its condition at least once per month to ensure that a needed change is made promptly. Additionally, take note of whether the poor air pressure is restricted to just one or two rooms or whether the problem is consistent in all rooms.

A consistent lack of air pressure throughout the house may be traced to dirty indoor coils or a malfunctioning blower, and AC maintenance may be sufficient for correcting the problem. Inconsistent air pressures in different areas may reflect problems with your ducts, requiring a duct inspection and potential repairs or sealing services.

Air Not Cold Enough

Your thermostat settings may be an issue if your system is blowing hot air. Make sure that your control hasn’t been accidentally set for heating. Inadequate maintenance can also cause a gradual decline in cooling ability, resulting in an air supply that isn’t very cold. Dirt on your indoor coils may be the issue, requiring a maintenance appointment. The issue may also be related to an inadequate refrigerant charge, a problem that can be identified during routine maintenance.

Frozen Coils

Low refrigerant and restricted airflow can lead to freezing at the coils. You can turn your system off to allow time for defrosting. Pay attention when you turn your equipment back on as air conditioner repair may be needed if ice forms again.

Inconsistent Performance

If you have some rooms that are perfectly conditioned and others that seem too hot or too cold, you may need to consider specialized equipment to better manage household comfort control. System zoning may help as it allows cooling energy to be directed toward areas with the greatest need.

Expert Air Conditioner Repair

If your troubleshooting doesn’t resolve the problem you are experiencing, then the experts at ADVANCE PRO REFRIGERATION A/C & ELECTRICAL are ready to provide the support needed. Whether you need electrical or maintenance, repairs or a complete HVAC system replacement, our team is prepared to act promptly, providing excellent workmanship and friendly service. Contact our customer care representatives in Atlanta ga, and the surrounding counties for an appointment today!