Stop Mold Growth in Your Business HVAC System

Due to condensation, HVAC systems can be prime locations for mold growth, and these systems can distribute mold throughout the building. Visible mold always signals a potential problem in terms of health-related complications and damage to building structures. Stopping mold growth is imperative for sustaining good indoor air quality (IAQ).

HVAC Maintenance for Mold Prevention

It’s important to schedule regular cleaning and maintenance of your HVAC system. Make sure your contractor or technician checks the following for a thorough inspection.

Coils and Drain Pans

Air is dehumidified through cooling coils, and the condensate water drips into the drain pan before exiting through a deep seal trap. When the drain pan isn’t properly designed and maintained, standing water can accumulate, which creates a microbial habitat. In addition to proper sloping, cleaning the drain pan regularly is an important component of healthy IAQ.

Humidification and Dehumidification Equipment

Wet surfaces should be drained and periodically treated in order to prevent microbial growth. Your technician should also prevent duct linings from becoming moist from sprayed water.

Outdoor Air Dampers

Screens and grilles can become obstructed from mold growth that has developed from dust and debris. The technician should clean these surfaces regularly in order to remove dust build-up.

Air Filters

The air filters should be replaced regularly, either on a scheduled basis or because of the air filter’s pressure drop. Fans should also be shut off when changing the filter, in order to prevent air contamination. Your technician may recommend getting a higher-efficiency filter in order to improve your indoor air quality. Purchasing a compatible high-efficiency filter can also minimize energy use.


While it’s normal to have some dust on duct surfaces, it’s important not to have dust on areas with restricted airflow, areas subject to condensation or moisture, and duct lining, as these locations are susceptible to contamination. The technician should fix any overly wet areas, such as the internal lining which can become chronically damp.

Return-Air Plenum

The space over the ceiling tiles is often used as a return-air plenum. Materials and supplies shouldn’t be in the plenum, as the area can become contaminated and disrupt airflow. All exhaust systems that pass through the plenum should be properly maintained in order to prevent leaks, as well as to prevent exhaust from entering the plenum. The technician should also check for condensation in the plenum areas and on pipes.

Cooling Towers

The chemical treatment and water quality should be periodically monitored to prevent microbial growth. It might also be necessary to physically clean the cooling towers in order to prevent the accumulation of sediment, and to install drift eliminators.

Air Intakes

The HVAC technician should check the areas where the outdoor air enters your HVAC system. He or she should also inspect any organic material that has accumulated in or near the HVAC intakes. Airborne fungal spores can become elevated when the intakes are near dumpsters, boxes, garbage cans, standing rainwater, paper, lagoons, ponds, and earth and vegetation that has been freshly disturbed.

Contact Anderson Air Corps for a thorough investigation of mold growth and to prevent mold from accumulating in the future. Doing so can protect your business as well as its occupants, and regular maintenance is the best way to keep mold at bay.

DIY Air Conditioner Maintenance

Taking care of your air conditioner unit is important to keep your family comfortable. Summer temperatures can reach triple digits in some places making it very important that your air conditioning system is ready to face those high temperatures. When you have performed regular maintenance on your air conditioner, it can perform as you need it to.

While we here at Anderson will gladly perform your annual maintenance, there are a few simple DIY air conditioner maintenance tasks you can do at home to help your air conditioning unit perform as it should. These simple steps can help make a difference in whether you’re home stays cool or you have problems this summer.

Change Filters

One of the simplest and most forgotten steps of DIY air conditioner maintenance is to change out the air filters on a regular basis. This simple step helps your system run more efficiently and helps you breathe easier.

This is your first line of defense against pollution in your indoor air. By changing out the filter on a regular basis you can prevent the allergens from floating around your home. It also helps your air conditioner system run easier as when the filters are blocked the system has to work harder to cool your home.

Clean Condenser

When you’re working outside make sure to clean out around your unit. Check your outdoor unit and clean out debris, dirt, sticks and leaves from around the unit. When these items surround the unit it is hard to get the necessary air it needs to cool your home. This makes the unit work harder than it should have to. This DIY air conditioner maintenance task does not need any technology and can be part of your gardening tasks.

Rinse Off Unit

You can easily rinse off the condenser unit and the condenser coils by turning off the unit and spraying it down. Be sure you take that step to turn off the power to the unit so you are safe during this clean up. Again this This DIY air conditioner maintenance is simple to do.

Supply Grills

Don’t forget to check around the supply grills in your home. This is where your air conditioning system sends your cold air into the home. You want to make sure they are cleaned off and not blocked by rugs or anything similar. You need to clean around them if there’s any dust or debris on the ceiling or the grills themselves. This will help to keep the dust and dirt blown around your home down to a minimum.

This DIY air conditioner maintenance task is also simple to undertake, but may need a few tools. All the tools such as brushes or air blowers are all available in any hardware shop.

HVAC Maintenance

While there are plenty of DIY air conditioner maintenance steps you can do at your home to make sure your system runs smoothly, calling in a professional for air conditioning maintenance is also advised. Our team here at Anderson can assist you with more detailed inspections and cleaning of the unit on items such as the evaporator coils, and testing the lines. This is important to have done annually to make sure your air conditioning system is at its peak efficiency at all times.

As you can see there are several This DIY air conditioner maintenance tasks you can do at home that are simple steps in keeping your air conditioner system running smoothly. These steps may not seem like much at first but they can mean the difference in a comfortable home and one that the system is struggling to keep up. Debris and dirt can wreak havoc on the system when it’s causing it to work harder than it should have to.

Keep the areas around the outside unit clean and free of debris. Always remember to change out the air filters to give your system a fresh start each month. Keep an eye on the supply grates to make sure they are not blocked by items in your home or that they are not dirty and dusty.

Why is Air Conditioner Capacity Measured in Tons?

Our team at Anderson Air Corps Heating & Cooling handles a variety of HVAC Service options including repair service, maintenance and installations. From air conditioner systems to heating units, we can handle it all. Each of our technicians are commonly asked questions on a variety of subjects, especially air conditioning. Home owners have a common interest in how the air conditioner units work, one of which is why an AC system has a capacity that is measured in tons. This is an interesting questions that dates back to the early history of the unit type.

Terminology used to describe AC technology is based on the origination of the unit type. The term ‘ton’ was originally the form of measurement based on pounds of winter ice that were harvested from lakes and rivers. The term was then transferred to the measure of heat that is extracted from the indoor space to create a cool home.

Before air conditioning, home owners would use ice that was harvested from bodies of water to create a cool home as well as for refrigeration purposes. Ice was a natural resource and could be used to extract heat from the air. Connecting the ice harvesting to modern air conditioning can be done. The measurement is based on the amount of energy that is required to melt one ton of ice in a twenty four hour time frame. This is 286,000 British thermal units or a rate of 12,000 BTUs each hour.

The BTU calculation is still used today to determine the rate needed for cooling the home. An air conditioner with a measurement of 1 ton will have a heat extraction rate of 12,000 BTUs each hour. A unit that has a measurement of 3 tons would take away 36,000 BTUs each hour.

By understanding the BTU calculations, our team can provide you with the correct HVAC air conditioning system in your home. The unit chosen will provide you with an excellent source of cooling that will be energy efficient for your home. You will use less energy and be better able to afford the cooling comfort in the home.

Manual J Calculations

In today’s industry, we use the Manual J Calculations to configure the unit load and sizing for your home. This method is recommended by state and federal government agencies which includes the United States Department of Energy. The calculation method will measure the amount of cooling needed in the home. Software programs have been created to easily input data to come up with the unit type needed for the home. Several factors play a role in cooling calculations including:

  • Average temperature and humidity locally
  • Orientation between the sun and home
  • Size of windows and how many are in the home
  • Air leakage rate
  • Insulation amount and quality
  • Occupants in the home as well as energy usage and scheduling
  • Coexistent systems

Each variable is then used to determine how much cooling is needed in the home on a room by room basis. The basis of cooling does not rely solely on the total square footage inside your home. The way to configure cooling loads in the home is quite interesting and helps you understand just home the comfort is tallied for each area of your home.

This is just one way our company can help you be comfortable during the summer season. Allow us to evaluate your home for proper cooling measurements or to provide you with repair and maintenance service when you need it most. Our team is ready to service you home cooling units at a moment’s notice. Contact us today to learn more about the many services we can provide your home!