Author: Kevin

The Role of Air Filters in Enhancing Indoor Air Quality

Written by Kevin on June 15, 2024. Posted in Indoor Air Quality.

The quality of the air that we breathe in our Hanover, MD, homes is incredibly important. Since many of us spend so much time indoors, it makes sense that we should be prioritizing air filtration. Unfortunately, a house can experience contamination from several types of particulates and pathogens. This often results in headaches, more allergy symptoms, irritated nasal passageways, and inflammation. Luckily, there is room for improvement using air filters and air filtration technology. Let’s discuss your options.

What Contaminants Need to Concern You?

Before we talk about the different types of filters that are available, it’s important that you know what contaminants you may need to deal with. Your specific indoor air situation will determine what kind of filtration you need. These are some common indoor air quality issues you need to be aware of.

Pollen

In the spring and summer months, Hanover can experience high levels of pollen in the air. Even if you’re keeping your windows and doors closed, no home has a tight enough envelope that nothing will make its way inside. As you’re exposed to pollen, you may experience sneezing, itchy eyes, a scratchy throat, or a cough. If you also deal with asthma, seasonal allergens can increase your risk of attacks.

Volatile Organic Compounds

Volatile organic compounds (VOCs) come from a variety of products. These chemicals occur in cleaning products, beauty products, and building materials like countertops, cupboards, and furniture. You can also find them in air fresheners and scented candles. You can make some changes to the products you buy to ensure you’re using more natural items, but some VOCs can’t be completely avoided.

Pet Dander

Pets are a wonderful addition to a household, but they release dander that circulates throughout your home. If you are allergic, pet dander can make you sneeze, itch, and cough.

Dust

Even the cleanest homes have dust particles circulating in the air. If you’re using optimal filtration, it can cut back on dust particles. This not only keeps your home cleaner but also improves your indoor air quality.

The Importance of Air Filters

Air filters can trap and remove particulates from your indoor air as they move through your HVAC system. Filters often last 30 to 90 days, depending on the type of filter you’re using. How often you’ll need to change them will depend on how frequently your HVAC system is running, how often you open your windows and doors, whether you have pets, and other factors. Not only do filters help improve your indoor air quality, but they also protect your HVAC system.

Filters come with a MERV rating, which stands for minimum efficiency reporting value. The higher the MERV rating, the fewer particulates that can pass through that filter. While you may think it’s best to go right out and purchase the filter with the highest MERV rating, this isn’t the case. Filters with a high MERV rating must work with an HVAC system that is capable of passing air through the filter with ease. Otherwise, they will place strain on your system that may result in the need for more repairs.

HEPA Filters

High-efficiency particulate air (HEPA) filters can remove as much as 99.97% of the particles that are in your indoor air. This includes things like pet dander, pollen, dust, mold spores, and more. Typically made from plastic or fiberglass layers, HEPA filters often come in an air purification device that has been installed in your HVAC system. HEPA filtration is optimal because it can also reduce the number of viruses and bacteria that are in your home. It’s ideal in cold and flu season.

Fiberglass Filters

Fiberglass filters are very affordable, and they are the most frequently used filters in HVAC systems. Made from strands of fiberglass, these filters generally have a very low MERV rating. In many cases, they have a MERV rating as low as 2 or 3. They are effective along with some other types of air filtration, especially with regular filter changes.

Pleated Air Filters

With a fan-like design, pleated air filters come in a range of efficiencies. Most will last for 30 to 90 days. They are usually made from paper, fiberglass, or cloth. The MERV rating of a pleated air filter can range from 3 or 4 up to 13. To choose the right filter, you need to take into consideration the type of HVAC system that you have. If you don’t have an HVAC system that can handle a high MERV filter, you may need to consider an upgrade. Adding a whole-home purification unit to your setup can also be beneficial if you’re not able to trap enough contaminants with your filter alone.

Electrostatic Filters

By using electricity to capture particles, electrostatic filters can remove particles that are as small as 0.1 microns in size. The filter is charged, while particulates are charged oppositely. This allows for particle removal before air circulates through the home. This is an affordable filter option, as many units utilize electronically charged plates over a replaceable filter. You simply clean the plates and place them back in the unit.

Washable Filters

For homeowners who are looking to reduce their carbon footprint and save some money, there are reusable filters to consider. They look like a disposable filter option, but you remove the filter, rinse it off, and replace it once it has dried. You’ll likely want to have a couple of these filters on hand so that you can still run your HVAC system while one filter is drying. Placing a filter back into your system before it is completely dry and ready can result in mold growth. Some people question if a washable filter ever really gets completely clean. While they can be quite effective, you might prefer a disposable option if you suffer from severe allergies.

Filter-Free Options

In addition to utilizing a filter in your HVAC system, there are other options that work in tandem with your filter setup. This will enhance filtration, so you will experience even better indoor air quality. UV-light technology is available. As things like mold spores, bacteria, and pathogens pass over the light, which is on the UV-C spectrum, they will be broken down. Cleaner and healthier air will pass back into your home through your HVAC system. Another option is using a dehumidifier. When you remove excessive moisture from your indoor air, fewer particles will be present. This also inhibits the growth of mold spores and increases overall comfort in your home.

If you would like to learn more about the different filters that are available for your Hanover home, reach out to the team at Beltway Air Conditioning and Heating. We are ready to help you achieve and maintain a healthy indoor air quality level. We can also help with the installation, repair, and maintenance of your heating and cooling equipment. We offer whole-home dehumidifiers and humidifiers, plumbing services, and thermostat installation, too.

Contact Beltway Air Conditioning and Heating today to schedule an appointment!

The Meaning Behind HVAC Efficiency Ratings

Written by Kevin on June 10, 2024. Posted in HVAC.

HVAC efficiency ratings are an invaluable tool for homeowners purchasing a new system. This information informs you how environmentally friendly a system is and how much it will cost to run over its lifespan. Use that information to compare any system to another and make a better buying decision. With this in mind, let’s explore the different rating systems you may encounter.

BTU

The British thermal unit (BTU) is a measure of energy and heat in particular. While it isn’t a measure of energy efficiency, it’s an important concept in the HVAC space. Many of the energy efficiency ratings we’ll discuss here use BTUs in their equations or as a criterion.

One BTU represents the amount of energy required to raise the temperature of one pound of water by one degree Fahrenheit. A BTU is equal to about 1,055 joules. As a general rule when sizing an air conditioner, you need 20 BTUs per square foot. Most central ACs and mini-split systems in the U.S. are 45,000 BTU units. Most furnaces are within the 80,000 to 100,000 BTU range.

SEER

The seasonal energy efficiency ratio (SEER) measures cooling efficiency over an entire theoretical cooling season. Manufacturers test their ACs and heat pumps in a laboratory setting. They then divide the BTUs of heat removed from the air by the total energy in watt-hours required.

What the consumer should know is that the higher the SEER, the cheaper the AC or heat pump is to run. It’s also important to know that the Department of Energy (DOE) sets minimums on a regional basis. There are three regions in the U.S. for the purposes of energy efficiency ratings: North, South and Southeast. As of 2023, the minimum SEER is 14 in the North, and 15 in the South and Southeast.

There are systems with SEER ratings well above the minimums. When the new minimums went into effect in 2023, there were central ACs with SEER ratings in the 20s. There were also mini-splits with SEER ratings in the 30s. Whether a higher SEER is worthwhile is a matter of comparing the added initial cost to the long-term savings.

SEER 10 was the minimum when the DOE introduced the concept of energy efficiency minimums in 1992. If you currently have a SEER 10 AC and upgrade to a SEER 14 AC, you would reduce your electricity consumption by 28%.

HSPF

Heating seasonal performance factor (HSPF) is similar conceptually to SEER. The fundamental difference is that it measures heating efficiency rather than cooling efficiency. HSPF is relevant specifically to heat pumps. Heat pumps are similar to ACs but have a reversing valve that lets them provide heating too. Furnaces generate heat directly. Heat pumps transfer heat energy.

The minimum HSPF set by the DOE as of 2023 is 8.8, which is quite a bit less than the minimum SEER. Current air-source heat pump technologies are less efficient heating than they are cooling. This is because they use heat energy in the ambient air. In the summer, heat energy is abundant. In the winter, it’s not. Ground-source or geothermal heat pumps offer HSPF ratings comparable to their SEER ratings. This is because the earth is abundant with heat energy even in the winter.

SEER2 and HSPF2

In 2023, the DOE introduced SEER2 and HSPF2 as new versions of the SEER and HSPF rating systems. The main difference is that they now factor in the static air pressure of the air handler. This provides consumers a more accurate energy efficiency rating for ducted systems, such as central ACs. The minimum SEER2 is 13.4 in the North and 14.3 elsewhere. The minimum HSPF2 is 7.5.

Starting in 2023, all new ACs and heat pumps must have a SEER2 and HSPF2 rating available to consumers. This is in addition to the required SEER and HSPF ratings. Note that you cannot compare SEER to SEER2 and HSPF to HSPF2. At a currently undetermined time in the future, the DOE will deprecate the old rating system.

AFUE

Annual fuel utilization efficiency (AFUE) measures the energy consumption efficiency of furnaces and boilers. An 80 AFUE furnace converts 80% of the fuel it burns into heat. It wastes the other 20% as a byproduct. The minimum AFUE as of 2023 for all three regions is 81. You also have the option of a high-efficiency furnace or boiler. These are also known as condensing furnaces and boilers. They reclaim heat energy from their exhaust. This allows for an AFUE of at least 90% and as high as 98.5%.

Electric furnaces have an AFUE of 100%, but this is a bit misleading. It’s true that they’re more efficient in that they lose no energy in the production of heat. That said, it’s an apples to oranges comparison. Electric furnaces are much more expensive to run.

EER and CEER

Energy efficiency ratio (EER) measures cooling efficiency. The difference between EER and SEER is that EER measures peak efficiency at 95 degrees Fahrenheit. SEER is much more informative to the average consumer choosing a central AC or heat pump. It just doesn’t stay hot enough long enough in the U.S. for EER to be relevant to consumers. That isn’t the case when it comes to window ACs and other room-based ACs. In those cases, EER is a good measure of your long-term costs.

The DOE introduced combined energy efficiency ratio (CEER) in 2014. It measures the cooling efficiency of window and other room-based ACs. The difference between CEER and EER is that CEER also accounts for the efficiency of the unit in standby mode. That means that CEER is more valuable to the average consumer than EER.

COP and SCOP

Coefficient of performance (COP) is measure of cooling and heating performance. It applies to ACs and heat pumps. The higher the COP, the better the efficiency and the lower the cooling costs. COP is similar to EER. Seasonal coefficient of performance (SCOP) is similar to SEER and HSPF. It accounts for efficiency over a season rather than at a peak. These ratings are not commonly used in the U.S. The DOE does maintain COP and SCOP data because many other countries do use them.

ENERGY STAR

ENERGY STAR is a program run by the DOE and Environmental Protection Agency (EPA). The EPA awards ENERGY STAR certification to appliances that meet certain energy consumption criteria. If a heating or cooling system has the ENERGY STAR label, you know that it’s a high performer in this regard. It can also make you eligible for federal tax credits and rebates and local and private rebates.

Your Local HVAC Experts in Maryland

If you’d like to learn more about HVAC efficiency ratings, Beltway Air Conditioning and Heating in Hanover is here to help. Our HVAC technicians install, maintain and repair all types of heating and cooling systems. That includes gas and electric furnaces, central air conditioners, heat pumps and ductless mini-splits. We also specialize in thermostats, air purifiers, humidifiers, carbon monoxide detectors and ductwork, including duct cleaning.

Our company has a plumbing team as well. We install and service well systems, sump pumps, tank and tankless water heaters and water filtration and conditioning systems. Call us today or contact us online to schedule an appointment or with any questions about these services.

Bright Solutions: 10 Benefits of UV Lights in Air Purification

Written by Kevin on June 1, 2024. Posted in Indoor Air Quality.

As homeowners and business owners look for better ways to clean and purify indoor air, the role of ultraviolet light (UV light) has come into play. These powerful lights are not only wonderful for illuminating spaces, but they can also help eliminate harmful pollutants and bacteria from the air we breathe. At Beltway Air Conditioning and Heating in Hanover, MD, we are committed to helping our clients improve their IAQ with unique, custom solutions, and we love incorporating UV lights because of their myriad benefits. Let us look at the top 10 benefits of UV light in air purification to improve indoor air quality.

1. Bacteria and Virus Elimination

UV lights eliminate bacteria and viruses by disrupting their DNA, making it impossible for them to replicate or cause infection. When the air contains bacteria or viruses and passes through a UV purification system, the ultraviolet rays deactivate the ability of the cells to reproduce, meaning that all the air circulating indoors is sanitized. UV systems can limit the risk of illnesses moving through the air and keep everyone in your home healthier.

2. Mold Prevention

UV lights play an important role in preventing mold by inhibiting the growth of mold spores. When UV lights are installed in HVAC systems or air purifiers, the UV light can target tiny airborne mold particulates and neutralize them. Neutralizing these tiny particles keeps them from landing on surfaces and multiplying. UV radiation prevents mold spores from reproducing and sanitizes the air, which helps people who suffer from allergies, respiratory problems, fungal infections, and general colds.

3. Allergen Reduction

UV lights can help reduce allergens by targeting common allergens such as dust mites, pet dander, pollen, and other contaminants. When we install UV lights in air purification systems, the UV lights can break down the DNA of these allergens and make them inactive so they cannot trigger homeowner’s allergic reactions. Eliminating air allergens means you will have a cleaner and healthier indoor environment. This is particularly important for allergy sufferers more prone to sneezing, congestion, coughing, and skin irritation. Improving your indoor air quality will improve the well-being of everyone living in your household, with or without allergies.

4. Odor Control

Say goodbye to gross odors and hello to fresh, clean air with UV lights. When added to your HVAC system, UV lights can help control funky smells that linger throughout your house. Whether it is a musty smell from the basement or leftover cooking smells in the kitchen, UV lights can neutralize those odors and keep your space fresh and clean. UV lights are particularly effective at neutralizing odors because they tackle the problem at the source — the air. Freshly cleaned air will give your home a clean, comfortable feeling that you will enjoy.

5. Improved Respiratory Health

UV lights protect your respiratory health by removing harmful viruses, bacteria, and allergens. UV lights will create a cleaner and healthier environment for you and your loved ones to breathe in. You can forget about sneezing fits, itchy eyes, stuffy noses, itchy skin, and other breathing problems when you add UV lights to your home’s HVAC system. We will walk you through how UV lights can protect your respiratory health and the custom installation options available.

6. HVAC Efficiency Improved

HVAC systems see a marked improvement in efficiency when UV lights are added. These little lights enhance efficiency by eliminating nasty bacteria and allergens that can gunk up your system and force it to work harder. With cleaner coils and air ducts, your HVAC system will run smoother, last longer, and save you money on energy bills. At Beltway Air Conditioning and Heating, we offer custom HVAC solutions that maximize the impact of UV lights for your home.

7. Cost Savings

UV light systems keep your air clean and help you save some cash along the way. UV lights reduce the need for expensive filters and frequent maintenance by zapping away airborne germs and allergens. Plus, they are energy-efficient, so you will see your electricity bills fall. With UV lights in your house, you can breathe easier knowing that you are not only getting cleaner, fresher air but also protecting your wallet.

8. Eco-Friendly

UV lights are like little environmental warriors that battle airborne bacteria and pollutants without releasing any harmful chemicals or byproducts. That means you can breathe easy, knowing you are not harming the planet while you clean your indoor air. The lower carbon footprint leads to decreased greenhouse gas emissions. Plus, UV lights have a long lifespan, so you will not need to worry about replacing them and adding to landfills constantly. They are a sustainable choice for keeping your home healthy and green. You will also find that you need to use fewer chemicals in your house to clean because you will have fewer harmful microorganisms present. This makes it possible to focus on a greener cleaning approach using more natural cleaners without harsh chemicals.

9. Long-Term Health Benefits

UV lights in air purification systems are like superheroes for your health. They work tirelessly to zap away all the nasty bacteria, viruses, mold, and allergens floating around in your indoor air. By doing this, they help keep you and your loved ones safe from respiratory infections, asthma flare-ups, and allergies. Over time, having UV lights in your air purifier can make a big difference in your overall health and well-being. It is like having an extra layer of protection against everything that can make you sick. Investing in UV air purification is not just about cleaning your air; it is also about investing in a healthier future for yourself and your family.

10. Peace of Mind and Stress Reduction

Knowing that everyone you love is safe when they visit your home provides peace of mind and reduces stress. UV lights in air purification systems add an extra layer of protection against indoor air pollutants and harmful bacteria. You will feel an added sense of security, especially during flu season, when UV lights work to zap allergens and harmful pollutants from your home. Minimizing your risk of exposure to harmful microorganisms, UV lights will help you to feel more comfortable and relaxed in your surroundings, which will also lead to a healthier and happier living or working environment.

Contact Us Today

The benefits of UV lights in air purification are undeniable, offering numerous solutions to indoor air quality problems. From eliminating harmful bacteria and allergens to preventing mold growth and neutralizing gross odors, UV purification systems can provide high-quality air treatment for homes and offices or any indoor spaces. UV purification systems can enhance HVAC system efficiency, boost respiratory health, improve sleep quality, and help homeowners save money.

Ready to add UV lights to your home or business? Contact us today, and we can set up a consultation to provide you with a custom UV lighting solution for your space. Our team can also assist with heating and cooling repairs, installation, and maintenance in Hanover.

10 Signs Your Air Ducts Need Immediate Attention

Written by Kevin on May 20, 2024. Posted in Indoor Air Quality.

Your home’s air ducts play a critical role in circulating air throughout your home and are an important part of your home’s indoor air quality as well as the efficiency of your HVAC system. From visible mold growth and unpleasant odors to uneven heating and cooling, understanding the top signs that your air ducts need immediate attention will help you take care of both your HVAC unit and your health.

If you notice any of the following top 10 signs, we recommend addressing the problem quickly with a professional HVAC team. Restoring your HVAC unit and fixing any problems will improve indoor air quality and the efficiency of your HVAC system and benefit everyone who lives in your home.

Sign #1: Visible Mold Growth

If you see visible mold growth in your air ducts, it’s a sign that your HVAC unit requires immediate attention. Mold spores can circulate throughout your home via the HVAC system, potentially causing respiratory issues and other health problems. Addressing mold growth quickly is critical to prevent the spread and potential health risks for you and your family. A professional HVAC inspection and remediation are necessary to remove the mold from your air ducts.

Sign #2: Musty or Moldy Smells Coming From The Vents

If you notice musty or moldy smells coming from your vents, you may have a mold or mildew growth problem. Even if you cannot see any mold, the musty smell is a telltale sign of moisture buildup and condensation. Where there is moisture accumulation, there is the potential for mold. Ignoring these odors can lead to poor indoor air quality and create potential health risks for everyone who lives in your home. These health risks can be particularly damaging if you suffer from respiratory issues or allergies.

Sign #3: Dust Everywhere

Excessive dust accumulation throughout your home can be a sign of issues with your HVAC system or with your air ducts. Dust particles can circulate through the ductwork and settle on surfaces, requiring extra cleaning in order to keep spaces dust-free. Too much dust can also decrease indoor air quality. To fix the excess dust issue, it’s important to have an HVAC technician address the root cause of the problem. Too much dust could be a result of dirty air filters, poor ventilation and filtration, leaky ducts, or various other reasons. A thorough cleaning of the air ducts, as well as looking for the underlying issue to repair, is the recommended next step for homeowners who notice too much dust in their homes.

Sign #4: Rising Energy Bills

Higher energy bills could mean that there are issues with your HVAC system or your air ducts. If your system has leaks in the ductwork or a malfunctioning thermostat then the system might have to work harder in order to reach your desired temperature. Working harder can lead to higher energy costs and can put a strain on your finances. The best way to resolve both your higher energy bills and your malfunctioning HVAC unit is to repair the unit.

Sign #5: Pests, Pests, and More Pests

Are you seeing signs of a possible pest infestation around your home? If you see signs of pests around your home or around your HVAC unit, then you may have a pest infestation in your unit. Pests like rodents, insects, or even small animals sometimes use ductwork as a pathway to move around homes. As these pests move through your ductwork, they tend to create tears and leave droppings, as well as dander, behind. Pests can damage your HVAC system and negatively affect your indoor air quality. It is important to bring out pest control professionals to eradicate the infestation and HVAC technicians to fix any damaged ductwork.

Sign #6: Bad Allergy Symptoms and Respiratory Problems

Experiencing ongoing allergy symptoms and respiratory issues might mean that you have poor indoor air quality, which could be due to your ductwork. Dust, pet dander, bacteria, mold, mildew, and other airborne allergens can move through ductwork and exacerbate allergies and respiratory conditions. If you’re experiencing symptoms such as sneezing, coughing, congestion, and wheezing, and these symptoms are increasing, your indoor air quality might be poor. Bringing HVAC technicians to your home can fix your indoor air quality by cleaning and repairing the air ducts.

Sign #7: Strange Noises Coming From the Ducts

Do you hear strange noises such as banging, rattling, whistling, or popping sounds coming from your HVAC system? If so, then you may have damage to your system. Investigating and addressing the source of the noises in your HVAC system can prevent additional damage and repair the existing damage. Contacting an HVAC professional to diagnose and repair the issue will restore peace and quiet to your home as well.

Sign #8: Dents, Holes, or Disconnected Ductwork

Dents, holes, and disconnected sections in your ductwork can significantly impact the efficiency of your HVAC system. These issues can lead to a whole host of problems, including air leaks, causing heated or cooled air to escape into unused spaces and leading to energy wastage. They can also allow contaminants such as dust, pests, debris, and allergens to enter the ductwork and ruin your indoor air quality. Regular inspection and maintenance of ductwork can help prevent these issues from occurring and maintain a healthy indoor environment.

Sign #9: Insulation Damage

Insulation damage within your HVAC system should be rectified immediately. Damage leads to energy loss and will allow heated and cooled air to escape. Compromised insulation can also lead to condensation buildup, which promotes mold and mildew growth. HVAC technicians can address insulation damage by repairing and replacing the affected sections of your system.

Sign #10: Limited Airflow From Your HVAC System

Limited airflow from your HVAC system can be a result of several issues, all of which require prompt attention. Limited airflow places a greater strain on your system and can burn out mechanical parts if not fixed quickly. The limited airflow can typically be fixed with regular maintenance, including filter changes and duct cleaning. HVAC technicians will search your unit for the root causes of the limited airflow and fix those issues during their inspection.

Contact Us Today

Notice any of these 10 signs in your home with your HVAC air ducts? Whether it is visible mold growth, strange odors, or airflow issues, each warning sign provides valuable information about the condition of your air ducts. By being proactive and addressing any issues promptly, you can prevent potential health hazards, prolong the lifespan of your system, and improve overall energy efficiency.

At Beltway Air Conditioning and Heating, we can help you clean your ducts and make any necessary repairs. We also provide ductwork installation and a full range of heating, cooling, and indoor air quality services. Contact us today, and we will help you restore your air ducts to pristine condition and perform a thorough inspection of your HVAC unit.

The Science Behind Indoor Air Quality

Written by Kevin on May 17, 2024. Posted in HVAC.

The Science Advisory Board of the EPA ranks indoor air pollution as a top-five environmental risk to public health. Americans spend about 90% of their time indoors, and indoor pollutant and contaminant levels are rising. Let’s explore what you should know about indoor pollution and how you can achieve healthier indoor air quality (IAQ).

Ventilation

Ventilation in homes is a key reason poor IAQ is becoming a bigger problem. Modern construction techniques allow for houses that are significantly more energy efficient. The downside to that approach is little to no natural ventilation. Most homes rely entirely on passive ventilation. Pollutants get in, but the system doesn’t vent them out at the same rate, which causes concentration levels to rise.

Large Particulate Matter

Large particulate matter (PM) consists of particles that are bigger than 2.5 microns in size and smaller than 10 microns. Often abbreviated PM10, these are the particles you associate with allergies and asthma. This includes pollen, pet dander, dust, mold spores, dust mites, and so forth. PM10 may not have direct long-term health risks, but high levels will make you feel worse in the short term.

Fine Particulate Matter

Fine particulate matter or PM2.5 is a long-term health concern. This is the aspect of air pollution that modern science links to many cardiovascular and respiratory diseases and possibly certain cancers. Most PM2.5 in your home gets there due to outdoor air pollution sources. Monitor the air quality index (AQI) for your area. On days when the AQI is at an unhealthy level, avoid natural ventilation such as open windows.

Gases and Chemicals

There are potentially many gases and airborne chemicals in your home that can affect your health. If you have fuel-burning appliances, then carbon monoxide (CO) is the most notable. Radon is the second leading cause of cancer in the U.S. only behind smoking. It can seep into your home over time. The EPA recommends testing for it every two years or after any major home renovation. Other top concerns include formaldehyde and volatile organic compounds (VOCs).

Bacteria and Viruses

The presence of some pathogens in your home is unavoidable. That said, poor IAQ can foster an environment in which the levels of bacteria and viruses are higher. In addition, poor IAQ can make you more prone to the development of infection from those viruses and bacteria.

Humidity

Humidity is the amount of water vapor in the air. Relative humidity (RH) is a measure of humidity within the context of temperature. RH plays a role in IAQ in a number of ways. If RH is too high or too low, it’s more difficult to breath, and you’re more prone to irritation. Additionally, when the RH is higher, there are more pollutants in the air due to the higher level of water molecules.

How to Maintain Healthy IAQ

The good news is that there are many solutions available to help you improve IAQ and maintain it. Here are some of the strategies that our IAQ experts recommend as the most important.

Source Control

Dust is by far the top issue when it comes to poor IAQ. It’s more than just PM10. Dust is effectively a sponge that absorbs gases and chemicals, extends their effective life spans, and emits them over time. For this reason, the EPA recommends a deep dusting of your home at least once a week.

You should also be careful not to introduce pollutants and contaminants into the home. Avoid household cleaners that contain toxic substances. Store potentially harmful substances outside the home. Avoid furniture and other items that off-gas VOCs.

Air Quality Testing

The first step we recommend is scheduling an IAQ test with us. We’ll perform comprehensive IAQ testing, including for radon, and provide you with a breakdown. Armed with this information, you’ll understand your IAQ challenges and how best to use your home improvement budget.

Seasonal HVAC Maintenance

Schedule us for a cooling tune-up in spring and a heating tune-up in fall. Doing so will save you money over the long term. It will also help you maintain good IAQ because we’ll clean all of your equipment. An HVAC system coupled with high dust levels is a main contributor to poor IAQ.

Air Filtration

Air filtration is a powerful tool in the battle against PM. If you have a central HVAC system, you have integrated filtration via your HVAC filter. The minimum efficiency reporting value (MERV) rating measures filter efficiency. The EPA recommends choosing an HVAC filter rated MERV 13. Most modern HVAC systems can support this value, and it will help trap most PM10 and PM2.5.

You can also add more mechanical filtration via a high-efficiency particulate air (HEPA) filter. HEPA filters restrict airflow too much to be on the supply side of your HVAC system. You can benefit from them through portable and room air purifiers and a duct-installed HEPA filtration system.

Duct Cleaning

At least every several years, you should schedule us for duct cleaning alongside a seasonal tune-up. No matter how much you dust, some of it will accumulate in your ducts where it’s impossible for the homeowner to reach. Our team has the equipment to extract all that dust and remove it from your home.

Air Purification

Our IAQ team also installs indoor air purifications systems. Supply-side air purifiers have activated carbon that neutralizes odors, VOCs, and many other gases and chemicals. You can also opt for an air purifier with a UV stage or UV lamps in your ducts. UV neutralizes bacteria, viruses, and more.

Humidifiers and Dehumidifiers

Whole-home humidification and dehumidification systems let you control your residence’s RH. A humidifier is most helpful in winter when the air is drier. A dehumidifier is most helpful in summer when the air is moist. This is also when your home is most prone to mold and dust mites. Both humidifiers and dehumidifiers can help to improve energy efficiency of your HVAC system as well.

Carbon Monoxide Monitors

If you have any fuel-burning appliances, it’s imperative to protect your family with one or more CO detectors. The coverage you need depends on the number and scope of appliances.

Whole-House Fans

If your home does not have enough ventilation, a whole-house fan is the solution. Such fans can introduce fresh air. Heat and energy recovery ventilators (HRV, ERV) are an option as well. These are more advanced whole-house fans that can improve energy efficiency. An ERV may also offset the need for a humidifier.

Your Local IAQ Experts Serving Greater Columbia

At Beltway Air Conditioning and Heating, we have locations in Hanover, Columbia, Arbutus, Pasadena, and Severn. Our IAQ experts clean ductwork and install and service air purifiers, dehumidifiers, humidifiers, and carbon monoxide detectors. The HVAC technicians on our team also install, maintain, and repair gas and electric furnaces, air conditioners, heat pumps, and ductless mini-splits. In addition, we have plumbers available to serve you. They repipe water and gas lines, repair sewer lines, and perform conversions and appliance hookups. They also install toilets and other fixtures, water filtration and softening systems, sump pumps, garbage disposals, and water heaters. Call us today to learn more about these services or to schedule an appointment anywhere in the Greater Hanover and Columbia area.

The Importance of Seasonal HVAC Maintenance

Written by Kevin on May 10, 2024. Posted in Uncategorized.

Your HVAC system is a vital part of your home. It provides comfort and protection from extreme outdoor temperatures, especially in the summer and winter. Unfortunately, too many people neglect regular maintenance of their heating and air conditioning systems until something goes wrong. This piece will explore the importance of seasonal HVAC maintenance and the benefits that come with it.

Improved Home Comfort

If an HVAC system isn’t maintained regularly, it can decrease its ability to warm or cool your home, especially in the months with the most extreme weather. If your refrigerant level is low, this can significantly reduce your AC’s ability to keep you cool in the summer. If your ducts or blower vents are clogged up, it will affect airflow, which can result in unwanted warm or cold spots in parts of your home.

HVAC Life Span Extension

With seasonal maintenance, a technician will be able to find minor problems before they get worse and become major issues. Because minor problems are caught and remedied early, less strain is put on components, and it greatly increases the life span of your HVAC system. Lubrication can be added to moving parts to reduce the wear and tear of friction. Electrical wiring can be checked to ensure there aren’t any issues.

Operational Safety

When HVAC maintenance is neglected, there are safety hazards that can occur. When a technician is performing maintenance on your HVAC system, they can identify and fix electrical issues that are a fire hazard. Water leaks can cause structural damage to your home, especially if they aren’t noticed for some time. If you have a split HVAC system that burns natural gas in the heating process, a technician can check for natural gas or carbon monoxide leaks.

Lower Energy Bills

One of the best reasons that it’s good to invest in seasonal maintenance of your HVAC system is that it can actually save you money. When your HVAC gets regular cleaning and maintenance, your system runs much more efficiently. This can dramatically lower your energy bills when compared to an HVAC system where homeowners have neglected the required maintenance. During a particularly hot summer or cold winter when your HVAC system is working harder, the savings due to improved efficiency can be even more noticeable.

Air Quality Improvement

You should be regularly replacing or cleaning your air filters. However, when a technician comes for seasonal maintenance, they can do that for you and a lot more. Over time, your system begins to accumulate contaminants like:

Pollen
Dust
Mold spores

When blown into the home, these pollutants can be irritating to breathe, especially to people who regularly have respiratory issues like asthma or seasonal allergies. Professional cleaning can remove all these contaminants from your ductwork, vents, blowers, and other areas of your HVAC system if it is a serious issue.

Noise Reduction

An HVAC system can get noisy when it isn’t maintained properly. This can be for several reasons. The system may have to work harder to make up for the lack of efficiency. It can also be due to damaged components or debris making its way into the system. Depending on how noisy your HVAC gets when it isn’t maintained regularly, it can prevent your home from feeling like a peaceful environment. Additionally, occupants in bedrooms near a clunky outdoor unit may have trouble sleeping. When a technician performs seasonal maintenance, they can tighten components that have come loose or properly lubricate moving parts to fix the noise issue.

Humidity Level Management

Excess moisture in the air during the summer months can make the temperature feel hotter than it actually is. The humidity can also cause your skin to get uncomfortably clammy. To make up for the humidity, most homeowners turn their cool air up even higher, increasing their energy bill and putting stress on the HVAC system. Seasonal maintenance can result in reduced humidity in your home. Technicians can ensure your HVAC system is working optimally to remove excess moisture from the interior of your home.

Costly Repair Prevention

Getting seasonal maintenance keeps your system running smoothly and reduces the amount of stress that is put on components. By reducing this system stress, you are ensuring repairs aren’t needed as frequently. Additionally, if an issue is found on a system that gets seasonal maintenance, it is more likely to be minor, reducing the cost to fix it.

Protect Property Value

Whether you are looking to put your house up for sale on the market or you want to refinance the mortgage on your home, protecting the value of your home is essential. Since your HVAC system is such a vital part of your home, taking care of it with regular maintenance helps preserve your home’s property value. If potential buyers see that the HVAC is poorly maintained, they may decide that they need to replace it, and that expected cost will be reflected in a lower offer. Some potential buyers might choose to purchase another house altogether simply because they don’t want to deal with the issue.

Good for the Environment

Due to the better energy efficiency that comes with a well-maintained HVAC system, you’re also lowering your home’s carbon footprint and helping the environment. Additionally, many old HVAC units use Freon as a refrigerant. Freon is slowly being phased out and replaced by other refrigerants because it is harmful. If your HVAC system starts to leak Freon due to neglected maintenance, this harmful gas is directly polluting your local environment.

Comply With Warranty Conditions

If your HVAC system is still under warranty, there are likely terms and conditions that state the required maintenance of your system for the warranty to remain valid. If you ignore regular maintenance, your warranty claim may be denied. The same can be said about your homeowner’s insurance. If something happens to your HVAC system that causes damage to your home, an insurance company can decide that they won’t cover the damages because it was due to negligence of your HVAC system maintenance.

Peace of Mind

Lastly, taking care of regular HVAC maintenance gives you peace of mind. You don’t have to worry about the stress that comes with your unit breaking down or the anxiety that you may feel from higher energy bills.

Clearly, scheduling seasonal HVAC maintenance is essential for a variety of reasons. Efficiency, safety, comfort, and more are all affected by the state of your HVAC system. Schedule your next seasonal maintenance soon so you can enjoy all of the benefits that come with it.

Do you need seasonal HVAC maintenance? If you live in Hanover, Columbia, Ellicott City, or any other town in the area, Beltway Air Conditioning and Heating can help. We offer maintenance, repair, and installation services for heating and cooling systems. We also offer various plumbing services. If you’d like more information about any of our services or you want to schedule seasonal maintenance for your HVAC system, contact Beltway Air Conditioning and Heating today.

Why Your Air Conditioner Fan Isn’t Working

Written by Kevin on April 18, 2024. Posted in HVAC.

Air conditioners (ACs) come with two fans, which include one on the inside of your home and one on the outside. The indoor AC fan is responsible for circulating air over your refrigerant coils. It cools the air before it’s sent through your ventilation ducts. As for the outdoor AC fan, it blows air over warmer refrigerant, removing heat so your system can keep your home cool. When either of these fans fails to work, it will affect the AC’s ability to cool your home. Knowing how to detect a fan problem and troubleshooting methods can help resolve the issue more efficiently. Here are nine common reasons your air conditioner fan might not work.

1. Malfunctioning Capacitor

The air conditioner’s capacitor is essential for providing the initial jolt of electricity to start the fan motor. When the capacitor malfunctions, the fan may not start at all or may struggle to start. You could be having problems with the capacitor if you hear a humming sound from the outdoor unit without the fan turning or the fan makes a clicking noise but won’t spin.

To diagnose a malfunctioning capacitor, technicians usually use a multimeter to test its capacitance. If the capacitor is indeed faulty, they will remove and replace it. Besides, it is important to remedy this issue quickly so that the fan motor doesn’t sustain damage, requiring a more costly repair.

2. Thermostat Issues

The thermostat is the control center for your air conditioning system. It turns the cooling system on and off to maintain the temperature you’ve set. If the thermostat isn’t working properly, it may fail to signal the air conditioner to turn on. This especially happens if the malfunction isn’t in the wiring but in the operational components, like the temperature sensor or another electronic component.

Some common issues your thermostat might have include a misconfigured or outdated thermostat, dead batteries or faulty wiring. Sometimes, a recalibration process is all you will need to get things back on track, and other times, replacing the battery handles things perfectly. But when your thermostat is beyond these simple solutions, you must call a professional to replace your system.

3. Circuit Breaker Is Tripped

This may sound basic, but a tripped circuit breaker can shut the whole system down. Your air conditioner’s fan needs that electrical current to keep it spinning. Circuit breakers are designed to trip when they detect electrical overloads or short circuits, which protects your home’s electrical system from damage.

When this happens, first locate your home’s electrical panel and check for tripped breakers. If you find one, reset it by switching it off and back on. If the breaker continues to trip repeatedly, it is a sign of a serious electrical problem. Shut the system off and call a professional HVAC technician from Beltway Air Conditioning and Heating to help you.

4. Frozen Evaporator Coil

If the evaporator coil in your air conditioner freezes, it can prevent the fan from blowing air effectively. A number of issues can cause the evaporator coil to freeze, including restricted airflow, low refrigerant levels or a dirty coil. Fixing an evaporator coil that has iced over will require you to turn off your air conditioner and let the ice thaw. Once the ice has completely thawed, our HVAC technicians can inspect your air conditioning system. Whether it requires cleaning the coils properly, adding refrigerant to the proper level or repairing leaks in the system, they will determine the cause and fix it.

5. Contactor Problems

The contactor in an air conditioner is a small device that is responsible for controlling the flow of electricity in your system. When you set the temperature on your thermostat, contactors conduct and restrict electrical currents that tell your air conditioner whether or not it should operate.

But how do these parts burn out? Well, like any part of any system, contactors wear out with age. Another way contactors get burnt out is when your AC system overheats. When this happens, the electrical flow of your system is interrupted and the adjacent AC components will not receive the electricity that they require and, therefore, will not operate. Besides, there are times when contactors can get stuck in the “up” or “down” position. If they get stuck in the “up” position, they won’t stop the electrical flow. In contrast, if it’s in the “down” position, the contactor will continue to run electricity to the components even if the cooling cycle has finished or, in some cases, is not supposed to be running at that time.

Therefore, if your AC fan is not working, it might be because the contactors controlling electricity to your AC fan are stuck in the “up” position or have burnt out. For this reason, Beltway Air Conditioning and Heating recommends always ensuring that you perform general maintenance on your system so you can prolong its life. However, if you think you might be having AC system issues related to a bad contactor, it’s never too late to call a technician from Beltway Air Conditioning and Heating since just a simple repair now might save a full replacement of AC parts later.

6. Air Filter Is Blocked

A dirty air filter is another common and easy-to-fix situation that sometimes results in your air conditioner fan not working. The air filter protects the system’s internal coils and the blower fan from dust, dirt and other airborne particulates. This keeps the coils cleaner and indoor air fresher. A clogged air filter restricts airflow so much that it might feel like your indoor fan isn’t properly circulating air. In many cases, restricted airflow shuts the entire system down. Luckily, simply cleaning or replacing the air filter should get the fan blowing again.

7. Broken Fan Blade

If your system suddenly starts making unusual sounds or vibrating, it could be that a fan blade in the outdoor unit is broken. A broken fan blade may be out of balance and strike other components in the compressor unit. To troubleshoot, you must first turn off your system, go to the outdoor unit and look through the top to see if the fan blades are intact. If a blade is broken or damaged, don’t try to restart your system; instead, call a professional to help with the repair.

8. Dirty Bearings

The fan motor spins thanks to the bearings in the motor. Those bearings can become dirty or dry out and create friction, which can cause the fan to produce some noise or stop working. Lubricating old bearings or replacing them can fix this issue and get your fan back working.

9. Wiring Problems

Faulty or loose wiring can prevent the fan from getting power to the fan motor. This can be due to poor installation, rodents chewing through the wires or simple wear and tear that occurs over time. Electrical problems can be dangerous, so it’s best to have a professional diagnose and repair a wiring problem.

When to Call the Professionals

Do you have an AC fan that isn’t working? Beltway Air Conditioning and Heating can find the problem and make sure it’s handled quickly. We handle repairs on every type of air conditioner, no matter the brand. In addition to AC and heating repairs, we also offer indoor air quality, duct cleaning and plumbing services. If you reside in Columbia, Hanover and the surrounding areas, contact us today at Beltway Air Conditioning and Heating to book an appointment.

Troubleshooting an AC compressor that won't turn on in Hanover MD.

Signs Of An AC Freon Leak You Shouldn’t Ignore

Written by Kevin on April 10, 2024. Posted in Cooling, HVAC.

Taking an air conditioner system for granted is normal for many people. When it’s properly working, you probably don’t think about it much. You enjoy the cool air in your home when it’s hot outside. However, it can become all you can think about when your AC stops working or has a severe problem.

Freon is a refrigerant, a chemical essential for your air conditioning unit to function properly. This gas repeatedly goes through an evaporation process inside your AC system. The constant evaporation cycle produces cool air that blows into your home. Under normal conditions, Freon is part of a closed system. When Freon leaks, your AC unit begins working poorly.

Catching a Freon leak early and contacting an HVAC technician to repair your AC is vital to your home’s comfort. Additionally, when you ignore a potential Freon leak, further damage can occur to your AC unit, leading to a more costly repair or replacement later. In this piece, we’ll cover 10 signs that your air conditioning system may have a Freon leak.

10 Common Signs of an Active AC Freon Leak

1. Hissing Noises or Bubbling Noises

One common sign that an air conditioning system is suffering from an active Freon leak is when you hear bubbling or hissing noises emanating from the indoor or outdoor cabinet. Because the refrigerant in your system is sealed under intense pressure, any structural puncture will force the gas to escape. The specific sound you hear depends entirely on the location of the breach, the line pressure, and the physical size of the hole. Smaller pinholes in the evaporator coil typically produce a persistent hissing sound, while leaks in liquid lines often result in a distinct bubbling noise.

2. Spikes in Your Monthly Electric Bill

The underlying symptoms of a refrigerant leak are not always immediately obvious. More noticeable system failures may not occur until the leak worsens over time. However, one early indicator you should always monitor is your monthly electricity bill. As Freon leaks out, the system’s cooling capacity drops. This forces the unit to run significantly longer cycles to reach the temperature set on your thermostat, wasting electricity. If you notice a drastic increase in your electrical costs without an increase in outdoor temperatures, a leak is highly likely.

3. Water Leakage Around the Unit

When an AC unit suffers from a refrigerant leak, it alters the pressure balance inside the system, causing the indoor evaporator coil to drop below freezing. As warm, humid indoor air passes over this freezing coil, the natural condensation freezes solid. When the system cycles off, this accumulated ice melts rapidly, overflowing the primary condensate drain pan. If you notice puddles forming around your indoor furnace closet or water actively dripping from your ceiling vents, you are witnessing the aftermath of a frozen system.

4. Insufficient Cooling

Capacity

While there are a handful of reasons an air conditioner might fail to lower your indoor temperatures, an unresolved Freon leak is one of the most common. When the physical volume of refrigerant inside your system diminishes, the heat-absorption process suffers. If you find yourself turning the thermostat down incredibly low, yet the air pushing out of your supply registers feels stagnant, and room temperatures refuse to budge, your system is likely starving for refrigerant. After a Freon leak is fixed, any necessary Freon that was lost from the system will need to be replaced.

5. Warm Air

Since Freon’s primary purpose is to absorb heat from your indoor air, a drop in your system’s Freon levels leaves that indoor heat trapped inside the loop. Instead of returning crisp, conditioned air to your living spaces, your system begins venting warm air back into your home. Note that if you just turned your system on, it may blow warm air for a minute or two as the lines pressurize, which is normal. However, persistent warm air means it is time to call a professional.

6. Rapid On-and-Off Cycling (Short-Cycling)

Modern air conditioning systems utilize built-in safety controls, such as low-pressure cutout switches, to protect internal machinery. When an active leak drops system pressure below safe operating parameters, the safety switch triggers, abruptly shutting the system down. As pressures briefly stabilize, the system attempts to restart, creating a rapid, repeating loop of on-and-off cycling. This behavior places immense mechanical stress on your system controls and can lead to electrical failure.

7. Evaporator Coil Ice Build-Up

When a system lacks proper refrigerant pressure, the internal temperature of the evaporator coil drops well below the standard $32^\circ\text{F}$ Fahrenheit freezing point. Ambient moisture from your home’s air freezes instantly upon contact with the metal fins, eventually encasing the entire coil in a thick block of ice. In extreme scenarios where the indoor air handler is positioned close to primary duct pathways, pieces of this ice can break away, shooting directly out of your home’s supply vents.

8. Unusual, Sweet Chemical Smells

Pure Freon refrigerant is naturally heavier than ambient air, causing it to sink quickly toward floor level when a leak occurs. While generally odorless in trace amounts, a significant structural leak can produce a distinct, slightly sweet, oil-like chemical smell. If you notice this unusual aroma lingering directly next to your outdoor condenser, near your indoor closet vents, or pooling along the floor around your equipment, your system requires immediate professional testing.

9. Health Problems & Symptoms

Inhaling concentrated refrigerant vapors can cause a variety of acute physical health issues. Prolonged exposure to leaking Freon gases within an enclosed household can cause respiratory irritation, sudden nausea, dizziness, and severe headaches. If anyone in your Hanover household regularly suffers from these specific symptoms exclusively when the cooling unit is operating, turn the system off immediately, open your windows, and seek professional medical guidance.

10. Complete System Failure

If an air conditioner is forced to overwork for months to compensate for a lack of refrigerant, the extreme operating temperatures will eventually cause complete system failure. When internal machinery is pushed past its structural limits, primary electrical relays fail, controls short out, or the system compressor locks up entirely. Catching a leak early prevents a standard line repair from turning into an expensive emergency system replacement.

Don’t ignore any signs that your AC system may be leaking Freon. If you experience anything mentioned in this article and you live in the Hanover area, Beltway Air Conditioning and Heating is here to help. We offer reliable heating, cooling, and plumbing services you can trust. To learn more, contact us today!

What To Do When Your AC Compressor Won’t Turn On

The outdoor compressor is the absolute heart of your air conditioning system, responsible for pressurizing and circulating refrigerant through your cooling lines. If your indoor blower fan is running but you notice your outdoor unit is completely silent and venting warm air, your compressor has failed to kick on.

If you find yourself facing this common cooling crisis, follow this troubleshooting sequence immediately:

Step 1: Verify the Thermostat Parameters: Double-check that your thermostat is set to “Cool” mode and that the target temperature is placed at least $3^\circ\text{F}$ below your current room temperature. If the thermostat display is completely blank, replace the batteries immediately.
Step 2: Inspect Your Electrical Panel: Go to your home’s main electrical breaker panel and check the dedicated, high-voltage dual-pole breaker labeled for the outdoor AC unit. If the breaker has tripped into the middle position, flip it completely to “Off” before resetting it back to “On.”
Step 3: Check the Outdoor Disconnect Box: Open the metal weatherproofing box mounted on the wall next to your outdoor unit. Ensure the high-voltage pull-out fuse block is firmly pushed into the “On” position. If your disconnect uses a traditional switch, verify it has not been accidentally flipped off.
Step 4: Clean a Clogged Air Filter: A heavily clogged, dirty air filter blocks all ambient airflow across your indoor evaporator coil, causing the system to freeze up completely. This triggers the low-pressure safety switches, shutting off power to the outdoor compressor to prevent liquid slugging. Replace your filter and let the system thaw for 4 to 6 hours.
Step 5: Listen for Humming Noises: Walk outside to your silent outdoor unit. If you hear a distinct, quiet humming sound coming from the cabinet but the fan and compressor refuse to spin, your system’s run capacitor has likely failed and will need to be replaced by an expert.

Dealing with an indoor system freeze that has triggered a water leak around your furnace or utility room floor? Don’t risk property water damage. Reach out to our certified team for professional sump pump repair in Hanover, MD, to safely clear the line overflow before it compromises your home’s foundation.

A Crucial Safety Warning Regarding Refrigerant Top-Offs

If your compressor won’t turn on due to a low-pressure safety lockout caused by a Freon leak, do not attempt to buy DIY refrigerant recharge kits. Adding refrigerant to a leaking system without finding and fixing the physical leak is illegal under EPA regulations and will cause severe, irreversible hydraulic damage to your compressor’s internal valves.

If you have completed basic electrical checks and your outdoor unit still refuses to run, turn the system off at the thermostat immediately to prevent internal motor burnout.

Schedule Certified Local Support

Don’t let an unresolved refrigerant leak or a failed outdoor compressor compromise your home’s safety and comfort. If you notice any of the warning signs outlined in this guide, our certified local HVAC technicians are here to help.

We utilize advanced electronic leak detectors and digital manifold gauges to locate system breaches accurately, patch lines safely, and restore your system’s factory parameters cleanly. Reach out to our customer service team today to book your comprehensive cooling system diagnostics or emergency repair visit!

How To Fix Cold And Hot Spots With HVAC Air Balancing

Written by Kevin on March 22, 2024. Posted in HVAC.

Is your home plagued by uncomfortable hot and cold spots? Do some rooms feel like saunas while others are downright chilly, even with the thermostat set to the same temperature? This temperature imbalance is likely due to poor HVAC air balancing.

Proper air balancing ensures your heating and cooling system distributes air evenly throughout your home, so there are no hot or cold zones. Air balancing techniques like adjusting duct dampers, adding booster fans, and sealing ductwork can help optimize airflow and create consistent, comfortable temperatures in every room.

Our licensed technicians at Beltway Air Conditioning and Heating can accurately identify and fix the causes of unpleasant temperature variations using advanced air balancing techniques.

Adjusting Duct Dampers to Redirect Airflow

One effective method for fixing hot and cold spots in a home is adjusting the duct dampers. Duct dampers are movable plates inside the ductwork that control the airflow to each room.

By adjusting these dampers, more air can be redirected away from rooms that get too hot and toward rooms that are too cold. The goal is to find the ideal balance point for each damper so that air is distributed evenly without cutting off any room completely.

Getting the precise damper adjustments right requires specialized tools to analyze the home’s ductwork layout and airflow. It also takes training and HVAC expertise to determine the proper positioning for optimum temperature balance, making it all the more important to hire a licensed HVAC technician to do the job.

Adding Booster Fans to Enhance Airflow

For rooms located far from the central air handler, the long duct runs can make it difficult to deliver enough air. This can create persistently cold spots. Adding small in-line booster fans within the ductwork leading to these rooms is an effective solution.

The in-line duct fans provide an extra boost to the air, helping to ensure that adequate air volume makes it down the long ducts to reach remote areas. The fans increase airflow to only where it’s needed without impacting the rest of the HVAC system.

Our technicians will inspect your home’s duct layout to determine the optimal locations to install in-line booster fans. Strategic placement and proper sizing of these compact duct fans can remedy cold spots caused by insufficient airflow to distant rooms. With the fans installed, we’ll balance and optimize the airflow to maintain comfortable temperatures throughout the home.

Sealing Ductwork to Improve Efficiency

Leaks in your ductwork can contribute to air balancing issues and hot or cold zones by allowing conditioned air to escape before reaching rooms. Sealing ducts helps optimize airflow efficiency so that more air makes it to intended locations instead of leaking out along the way.

Our technicians use advanced diagnostic tools to detect duct leaks. We’ll seal any leaky joints, disconnected spots, or punctures with durable metal tape and mastic sealant specially designed for HVAC systems. Sealing your ducts prevents wasted energy from leaks so that your system can maintain comfort and efficiency.

Effective sealing paired with proper air balancing ensures each room gets just the right amount of conditioned air for the hottest days and the coldest nights.

Adjusting Supply Registers to Control Airflow

Supply registers are the vents in your walls, ceilings, or floors that allow conditioned air to enter each room. The size and direction of these vents impacts how much air blows into the room. Adjusting your supply registers can help fix cold and hot spots.

If some rooms are too warm during winter, for example, try closing their supply vents partially to restrict airflow. For chilly rooms, make sure their supply registers are fully open, and divert any directional vents to point the air into the room. Opening or closing specific registers allows you to control the air volume room by room.

Keeping registers dust-free also enables proper airflow. Wiping down or vacuuming the registers can help keep them free of dust and other debris that restricts airflow, but investing in duct cleaning may also be a good idea. Our technicians have equipment and the knowhow to perform a thorough cleaning that most homeowners cannot. Let us inspect your registers and make any adjustments needed to help properly balance and condition each room.

Upgrading to Zoned HVAC Systems

For homes where simple register adjustments don’t completely resolve hot and cold spots, upgrading to a zoned HVAC system may be the answer. Some zoned systems have separate air handlers and thermostats for different areas of the home, where others rely on automatic dampers to route air where you specify.

This allows you to customize the temperature in specific zones like a master suite or living room without impacting other areas. The zoned system only conditions the air in rooms being used, which saves energy. Plus, zoning enables precise temperature control in any room that tends to deviate. Our team can install and integrate a new zoned HVAC system to help fix stubborn hot or cold spots for good.

Monitoring Static Pressure

Maintaining proper static pressure is crucial for balanced airflow throughout a home’s ductwork. Static pressure is the force moving air through the ducts. Too-high or -low pressure can create hot and cold spots throughout the home.

As we make air balancing adjustments, our technicians will monitor static pressure using specialized tools. Ensuring pressure stays in the ideal range for your HVAC system prevents overworking the blower motor while still allowing sufficient airflow.

Getting static pressure just right as part of the balancing process enables air to move efficiently throughout the ductwork. This allows each room to get the right amount of cooling and heating without any area being deprived of conditioned air, leading to better overall comfort.

Checking Insulation Levels

Insufficient insulation can lead to some rooms heating up or cooling down faster than others. Rooms above garages or with lots of windows often have less insulation. Upgrading insulation in hot and cold rooms can help them retain temperatures better.

Our team can inspect the insulation levels throughout your home to identify problem areas. We can add insulation to walls, attics, basements, and crawl spaces using fiberglass batts, spray foam or blown-in cellulose. Beefing up insulation regulates temperatures so that rooms stay comfortable longer after your system cycles off.

Adjusting the HVAC System Blower Speed

The speed of your HVAC system’s blower fan can impact air balancing and cause temperature inconsistencies. A blower speed that is too high can short-cycle air through the system before rooms get sufficiently heated or cooled.

Our technicians can adjust the blower speed as needed as part of a comprehensive air balancing plan. Lowering an excessively high fan speed allows more time for air to be conditioned properly as it circulates. This prevents some rooms from getting an uneven share of heated or cooled air.

Schedule Air Balancing Service From the Experts

For even, comfortable temperatures throughout your home, the key is proper HVAC system air balancing. Our technicians at Beltway Air Conditioning and Heating have the expertise to analyze your home’s airflow issues and implement customized solutions. We also can provide all heating and cooling services your home needs.

Contact us today in Hanover, MD, to schedule comprehensive air balancing services. We’ll tailor a plan to your home’s needs so you can finally say goodbye to uncomfortable temperature imbalances. Our expert technicians deliver customized solutions to create the ideal airflow for consistent comfort in every room.

What To Do When Your AC Compressor Won’t Turn On

Written by Kevin on March 8, 2024. Posted in HVAC.

Having a troubleshooting guide for an AC compressor that won’t turn on helps homeowners diagnose the issue quickly and accurately, allowing for timely repairs. A comprehensive troubleshooting guide ensures that individuals can identify potential safety hazards associated with electrical or mechanical failures. If your AC compressor won’t turn on, use this guide to pinpoint the cause. Then, contact an HVAC technician right away to confirm the cause and implement the right solution.

What Does an AC Compressor Do?

An AC compressor, a crucial component of any HVAC system, is responsible for increasing the pressure of the refrigerant and distributing it throughout the cooling system. Its principal use is to raise the temperature and pressure of refrigerant gas by compression. The next step is for the high-pressure gas to pass past the condenser coil, which helps the refrigerant condense into a liquid by releasing heat into the surrounding air. After that, the liquid refrigerant makes its way to the evaporator coil, where it cools the air inside by absorbing its heat. The compressor is the key component in the air conditioner’s heat exchange mechanism.

Maryland’s Environmental Factors That Affect AC Compressors

Hanover, Maryland’s diverse climate presents various environmental factors that impact AC compressors. The state experiences hot and humid summers, with temperatures often exceeding 90°F. High humidity levels can strain compressors by requiring them to work harder to remove moisture from the air. Additionally, Maryland’s winters bring cold temperatures, occasionally dropping below freezing. Cold weather can cause issues like refrigerant leaks and compressor damage. Furthermore, Maryland’s coastal location exposes AC units to salty air, increasing the risk of corrosion.

What It Means When the AC Compressor Won’t Turn On

If the AC compressor won’t turn on, the entire unit won’t work. This can lead to major inconveniences in your daily life since the system won’t be able to cool your home. There are many reasons why the AC compressor might not come on. Knowing the exact cause is vital to fixing the issue correctly.

Faulty Thermostat

A faulty thermostat can cause the AC compressor not to come on for several reasons. It could be a simple issue like dead batteries, incorrect settings or a malfunctioning sensor. Additionally, wiring problems, dust accumulation or even a thermostat placed in the wrong location can lead to compressor issues. Addressing thermostat issues promptly is crucial for restoring proper functionality to the AC system and ensuring optimal cooling performance.

Tripped Breaker

A tripped circuit breaker can stem from various causes, such as electrical overloads, short circuits and faulty wiring. When the circuit breaker trips, it disrupts the power supply to the AC compressor, preventing it from turning on. This could result in the compressor not receiving the necessary electrical power to operate effectively. Identifying and addressing the underlying cause of the tripped circuit breaker is necessary to restore power to the entire cooling system.

Blocked Condensate Drain

Air conditioning systems have a condensate drain line that can easily clog due to debris accumulation, algae blooms or mineral deposits. When this happens, it makes it impossible for the unit’s condensate water to drain properly. As a result, water begins to accumulate in the system, activating a safety feature that turns off the compressor’s power to prevent water damage. Deactivating this safety feature and powering back on the compressor depends on removing the clog from the condensate drain.

Faulty Contactor

Corrosion, electrical issues and regular wear and tear can lead to the failure of the AC unit’s contactors. When the contactor fails to engage properly, it disrupts the electrical circuit that powers the compressor. Consequently, the compressor does not receive the necessary power to start up, causing the air conditioner to cease functioning. To rectify the issue and restore operation, an HVAC technician must replace the broken contactor with a new one. This ensures the compressor resumes normal operation, allowing the AC unit to function efficiently once again.

Faulty Capacitor

A malfunctioning capacitor in an AC unit can hinder the compressor from starting up in several ways. Degradation of the capacitor may lead to issues such as electrical shorts or electrolyte leakage. When the capacitor fails, it may not provide sufficient electricity to start the compressor motor at all. To restore proper operation, it’s crucial to have an expert replace the defective capacitor with a new one.

Compressor Overload

The compressor’s overload safety system will activate if the internal temperature or pressure reaches dangerous levels, causing the machine to shut down. Possible causes of this problem include refrigerant leakage, blocked coils, and inadequate airflow. Preventing compressor overload requires resolving the underlying problem, such as dirty condenser coils, a broken fan motor, or electrical issues.

Refrigerant Leak

If there isn’t enough refrigerant in the system, the compressor won’t get enough pressure to work properly, and it won’t start. These leaks reduce the cooling capacity and efficiency of the system, which may cause the compressor to overheat. To avoid compressor failure and make sure the air conditioner is working properly, it is critical to find leaks quickly and fix them.

Faulty Control Board

A faulty control board in an AC system can prevent the compressor from starting due to various reasons. Issues such as electrical malfunctions, component failure, or damage to circuitry can disrupt the signal transmission necessary for compressor activation. Additionally, a malfunctioning control board may fail to communicate with other system components, leading to compressor inactivity. Fixing this problem will require the assistance of a licensed HVAC expert.

Faulty Pressure Switch

Problems such as sensor malfunctions, damaged wiring, or inaccurate pressure readings can hinder a pressure switch’s ability to signal the compressor effectively. Additionally, if the switch port becomes blocked or clogged, it may provide erroneous pressure readings. These issues can disrupt the proper functioning of the pressure switch, preventing the compressor from receiving the necessary signals to start. The only way to fix this is to have an HVAC technician replace the faulty pressure switch.

What to Do

Homeowners can take many preventative measures to avoid issues with their air conditioning compressors. To keep the compressor from overworking, it’s important to change the air filters regularly. Keeping the outside unit clean and clear of dirt, landscaping, vegetation, and pets is important for keeping it running at its best. Preventing compressor damage also requires checking refrigerant levels and making sure there are no leaks. Verifying the integrity of electrical connections and parts regularly guarantees their proper operation. The best way to stay on top of these upkeep requirements is to schedule annual professional maintenance. If you’re already experiencing problems with an AC compressor, contacting an HVAC technician can prevent further problems. Ignoring compressor problems will lead to significant issues and costly repairs down the line.

With warmer weather right around the corner, there’s never been a better time to schedule AC maintenance. Beltway Air Conditioning and Heating works on heaters and air conditioners. We also provide indoor air quality and duct cleaning services. If you’re experiencing issues with your AC compressor, call us right away to schedule an AC repair.