What Does The Air Handler Do For My HVAC System?

491836769There are myriad components that go into your HVAC that sometimes it can get confusing to understand the function of each component. Nonetheless, every component plays a very significant role in ensuring that your home maintains a premium comfort levels. Air handler is a crucial part of this network of components.

What’s Air Handler?

By definition, an air handling unit (AHU) or simply air handler is a device in your HVAC that is used to circulate and regulate air. An air handler is usually placed in a bigger metal box containing filter chambers, dampers, sound attenuators, blower, and heating and cooling elements. Small air handles, mostly for domestic use, only include coil, air filter and a blower.  They are sometimes referred to as terminal units, fan coil units, or blower coil. Large air handlers designed to condition 100 percent outside air (no recirculated air) are called makeup air unit, rooftop units (RTU) or packaged unit (PU), and are usually placed on roofs.  An air handler is usually connected to the duct ventilation system which distributes the conditioned air through your home/ building and redirects it to the AHU. In some cases, AHU is designed to discharge (Supply) then admit (return) air to and from the space without duct work.

Function of an Air Handler

Basically, an air handler does exactly what it sounds like it can do—it handles/manages air in your heating and ventilation system. It is the indoor part or component of your heat pump or split-system air conditioner. It has an evaporator coil that removes the heat from the air which is in turn blown through a series of ducts attached to it.

Because the air handler often has strip that provide your HVAC with additional heating power, some people mistakenly refer to it as an electric furnace. However, this is not true: the heat strips in your air handler are designed to provide sufficient heat when it is little colder outside but not cold to a level that warrants having a furnace.

Bottom Line

An air handle is a very vital component of your HVAC system. Follow us for more articles that will keep your heating and cooling systems running efficiently.

Steps To Take To Become An HVAC Technician

Have you always enjoyed fixing broken things in your home? Do you get a kick out of experimenting with complicated wiring? Do your neighbors call on you for minor repairs on their air conditioning units, refrigerators and other systems? Having a career as an HVAC technician could be perfect for you.

What exactly is an HVAC technician and what does the job entail?

An HVAC technician is a skilled tradesman who is responsible for installing and repairing heating, ventilation and air conditioning equipment in residential and commercial buildings. As a skilled technician, your job involves reading blueprints and using a wide range of specialized tools such as metal cutters, current meters and flow sensors. When you are called to repair a system in your customer’s home or office, you need to make sure that all motors, fans, compressors, pumps, switches and thermostats are functioning properly.

What are the steps that you need to take to become an HVAC technician?

Step 1: Complete your high school studies

You need to graduate from high school or receive a general equivalency diploma. Experts recommend that while you are still in high school you need to immerse yourself in relevant courses like physics, computer science and chemistry. In addition to that, you also need to take additional vocational training and shop classes to further enhance your skills and knowledge.

Step 2: Enroll in an accredited HVAC training program.

After completing your high school studies, you need to enroll in an accredited HVAC training program. Here you will be exposed to more HVAC specific courses like blueprint reading, temperature control, construction and equipment design. These training programs typically take about six months to two years to complete. If you choose the shorter programs, you will receive a certificate. If you choose to complete the two-year program you will graduate with a diploma.

Step 3: Participate in an apprenticeship program.

Most states in the country require would-be HVAC technicians to complete a 3 to 5 year apprenticeship period. During this time, you are going to train with professional HVAC technicians and you are going to be exposed to a combination of theoretical classroom learning as well as practical application. The apprenticeship program is a paid on-the-job-training and is available through various local chapters of HVAC industry contractor associations. Some of the courses that you will take during the apprenticeship period are blueprint reading, safety practices, ventilation and air conditioning systems design and care of tools.

Step 4: Successfully pass the licensing examination and obtain your HVAC license.

Licensing requirements in different states vary but as a rule, you need to pass the licensing exam and either complete a training program or accumulate 2 to 5 years of work experience in the HVAC industry. During the exam you will be expected to exhibit in-depth knowledge of a wide range of HVAC installation and repair concepts and principles. You will also be tested on your knowledge of electrical codes. If you aim to work with refrigerants as well, you will need to take additional certification for the particular type of appliance or equipment that you will service.

Global Warming Now Affecting The U.S. Says Report

The latest federal climate assessment says the United States is now experiencing global warming impacts. The report released by the U.S. government says higher temperatures are causing more flooding in flood prone areas while other parts of the country have to deal with water scarcity.
The planet’s climate changes constantly but the current warming is now happening faster than before.

According to climate experts, greenhouse gas emissions have contributed to warmer summers in the U.S. and other parts of the world.
Scientists believe that gaseous substances released by industries and agricultural areas are the culprit. Experts say these gases are then added to the Earth’s natural greenhouse effect and as a result, more energy is trapped in the atmosphere.

The Evidence For Warming
Since the year 1979, satellite data have shown a rapid decline of Arctic sea-ice — the decline totaling to a dramatic 4% per year. Temperature records from the latter part of the 19th Century show an increase in the Earth’s temperature making global warming an “alarming” problem.

Scale Of Impacts
The latest federal climate change report says that there is now an increased possibility of more severe weather changes across the United States but ensured that the situation is “actionable”.

While climate experts often mention extreme weather conditions as one of the impacts of the climate problem, the scale of impending impacts is uncertain. Changes in the atmosphere could lead to water shortages and bring drastic predicaments for food supply.

Increased precipitation and flooding are also perceived by experts as another effect of global warming. In early 2014, the United Kingdom experienced extreme flooding while in the Philippines dealt with devastation after typhoon Haiyan made landfall the year before.

While experts forecast more precipitation in the years to come, the U.S. report and the UN’s climate panel also say that global warming has increased the risk of droughts. Scientists say however that there are regional variations.

The ocean will also suffer from global warming impacts say experts due to the increased CO2 in our seas. This higher CO2 uptake leads to acidification which, according to scientists, poses as a big problem for marine life.

Human Adaptation
The World Health Organization warned that tropical nations will suffer from the effects of higher temperatures and that millions of people are likely to be affected by water-borne diseases.

Extinction of certain flora and fauna are also predicted by experts. These changes are already impacting societies of the world. In the warmer regions of the United States, it experts advise homeowners to contact a professional hvac technician to improve the ventilation in their homes.



Carrier® WeatherExpert™ Rises to Department of Energy Challenge Reaching 20.8 IEER Rating

SYRACUSE, N.Y., May 21, 2013 — The new Carrier® WeatherExpert™ 10-ton unit exceeds the parameters of the recent Department of Energy (DOE) Rooftop Unit (RTU) Challenge, providing an Integrated Energy Efficiency Ratio (IEER) of 20.8 – more than 15 percent more efficient than the required minimum of 18.0 IEER. Carrier, the world’s leader in high technology heating, air-conditioning and refrigeration solutions, is a part of UTC Climate, Controls & Security, a unit of United Technologies Corp. (NYSE: UTX).

In an effort to spur the market introduction of cost-effective, high-performance commercial rooftop air conditioners the DOE created the RTU Challenge, enlisting manufacturers to develop a 10-ton unit that meets the18.0 IEER-specifications by April 1, 2013. The DOE focused on rooftop units which are used in nearly half of all commercial cooling systems in the U.S. If all the 10-ton units currently sold nationwide were built using this new 18.0 IEER criteria, businesses would reduce energy use by half compared to current equipment, saving about $40 million annually in energy costs.

As an innovator and market leader, Carrier embraced the RTU Challenge and committed to the energy savings initiative more broadly with its entire line of WeatherExpert models. According to data from the U.S. Department of Energyanging from 3- to 23-ton units reaching a high-IEER rating of 21.0, making the WeatherExpert one of the most efficient packaged rooftop units available.

“When the DOE announced its RTU Challenge, we accepted immediately and enthusiastically,” stated Greg Alcorn, vice president, commercial sales and marketing, Carrier. “Carrier is committed to developing energy efficient solutions, so this challenge aligned perfectly with our priorities and market position. The DOE has taken a big step forward in improving the efficiency of the commercial cooling industry with the RTU Challenge, and Carrier is proud to be at the forefront of that movement.”

To learn more about Carrier’s energy management solutions, visit www.commercial.carrier.com. Follow Carrier on Twitter: @carriergreen.


Carrier is the world’s leader in high technology heating, air-conditioning and refrigeration solutions. Carrier experts provide sustainable solutions, integrating energy-efficient products, building controls, and energy services for residential, commercial, retail, transport and foodservice customers. Founded by the inventor of modern air conditioning, Carrier improves the world around us through engineered innovation and environmental stewardship. Carrier is a part of UTC Climate, Controls & Security, a unit of United Technologies Corp., a leading provider to the aerospace and building systems industries worldwide. Visit www.carrier.com for more information.

For additional information on how you can make your home more energy-efficient cost-effect, contact Cardinal at 425.296.2097.

How To Maximize Cooling Savings This Summer

Keeping cool and your wallet full may be easier than you think. There are many energy saving tips that you can put into place to help you keep the savings while staying cool and comfortable in your home this summer. You will find that there are many great ways to keep the air inside your home and have a great time. Check out these tips for maximizing your savings this year.

Seal Drafts

Be sure that you go around your windows and doors checking for drafts. While you might think about this during the winter, it can also cause problems of lost air during the summer. By fixing those leaks you are sure to keep the air inside your home and not sharing it with the neighborhood. Be sure to seal off any leaks you find.

Steady Temperature

Be sure to set your temperature to as high as you can handle it. While you want to be cool and comfortable, setting your temperature to a higher setting can help you save money. The higher your temperature settings the less work your unit is doing. Try setting a few degrees higher to see how much you can save on your electric bill. You can be comfortable without your home feeling like an icebox.

Maintenance Checks

Set up an appointment for a routine inspection on your cooling unit. This can help you prevent any huge repairs that are waiting to happen and make sure your unit is ready to go. When the technician comes out he can check belts and filters and also lubricate bearings. All these small items can make a big difference in your cooling bills.

Proper Unit Size

Do you know if the unit you have is the right size for your home? If you are not sure you need to have this checked out. Some homes have units that are way to small to heat and cool their home size. In this case your unit works double time trying to keep it the temperature you have it set to. Have a technician check this out for you and if it’s too small, replace it.

Change Air Filters Once A Month

This easy to do routine step will make a huge difference in how hard your unit works. By changing filters out regularly you are giving the machine an easier way to filter the air. When your filter is clogged it makes the unit work even harder. This means your bills are going up. The more it has to work the more money you are paying out of pocket.

Energy Efficient Units

There are some low draw units you can consider as well. These will help you to get the maximum benefits for less usage. Check into these units to discover how easy it is to upgrade and save money. All these tips can help you save and keep the money in your wallet during the hot summer months. Stay cool and enjoy your time off while resting easy about your unit. Keep these tips in mind for every summer to be a happy and cool one.

Help your HVAC Technician understand your AC needs

When installing a new air conditioning system in your home, it is important to understand exactly what you need. When a licensed technician arrives at your home, it is best to be able to let them know exactly what you need so they can help you accomplish your goal. Below are a few tips on what you should tell your HVAC technician before installing a new air conditioning unit.

First decide on your plans for your air conditioning installation. Figure out if you want to replace a broken part with a new part or if you want to install a completely new system. Once you understand your needs, it will make it easier for your technician knows exactly what you need. An example of this would be if you are going to replace a part of your system. You need to let your technician know that you want the same type of part that exists in your system.

Also it is a good idea to let the technician know your current problem. Are you needed a new installation because your current one is simply broken or do you need a new installation because your home was not being properly cooled? This information will help the technician give you the best possible service. Allow your service technician to give you an estimate of a new installation, you may find that the cost difference between your repair and a new installation are not that great. Or you may find that a new installation will benefit your greater than a repair.

It is also important to discuss how much power you will need with your service technician. A professional will be able to look at your home and tell you exactly how much power you need. It could turn out that the system you are currently using is not powerful enough to cool your home.

It is also important to consider energy efficiency. An older unit is not going to be as efficient as a new air conditioning system. An older system will have decreased in efficiency over the years and a newer unit will make a big difference. You will see a cooler home as well as lower utility bills which will save you money in the long run.

Take the time to discuss each of these options with your HVAC technician. Your technician will understand your needs and get ready to install a new system or make the repairs you need in a quick and efficient manner.

4 Reasons Why Solar Power Dominates Diesel Generators

Solar powers cost is actually becoming affordable. However, it comes down to location, installation and the kind of solar power. This technology in Africa is cheaper then kerosene! The Renewable Energy News says that solar is actually cheaper then diesel generators in India. Solar direct which is French has a bid to supply the solar power at a cheaper rate then diesel. There are many reasons why solar power dominates diesel power. Here are 4 reasons:

Cost Effective

The solar photovoltaic panel can be expensive but it gives it all back in time. It will reduce the amount of electricity used and save you money. The payback time is shorter every day. In some areas the electricity from the sun is less per kilowatt hour then producing it from fossil fuel. We all realize that coal, gas oil and nuclear prices will rise and solar energy is cost effective. Its efficiency is recognized when it breaks even and cuts your monthly payments.

Global Warming

We are all concerned about global warming into the future. With solar energy there is no carbon dioxide, methane or emissions into the air. The only small amount comes from the manufacturing, transporting and installation. However, it is minimal.


With people losing their jobs everywhere it is nice to know that solar power is creating jobs. In Germany it has born several hundred thousand jobs! It is a growth industry. The politicians love solar power and want to expand incentives to increase sales.

Solar powered generators are safe

They are cleaner then petroleum units which can smell horrible. With the smaller generators you can limit to plug ins with less power. With diesel powered tanks you have to fill them up every couple of hours. With solar power you can use a freezer or washer just by wiring to the appliance and bypassing the company’s meter. Solar generators can be used anywhere even a shop or barn.

If you have a cabin you can have electricity from the sun. Solar powered generators cannot power a whole home but will work on smaller jobs. They will give you a backup power source in case you need it. If you have a shop, barn or workshop outside then a solar powered generator will give you all the power you need and more. We all need power at one time or another and solar power definitely wins out over diesel power in some instances.