How Does Your HVAC Ductwork Work? | Mistral Cleaningclean

How Does Your HVAC Ductwork Work?

What is HVAC ductwork and how it works? What comes to mind when you think about your air conditioning system in Dubai? Most people think of the indoor vents that transport air in and out of the different rooms in the home. While others may consider the large and more visible outdoor unit that powers the entire system.

Few people, however, stop to think about the many different components that connect this outdoor unit to the one outdoor. Both the indoor and outdoor components of the HVAC system are connected by a channel of vents called ductwork.

This article will present the essential role HVAC ductwork play in your air conditioning system. You will also discover the role of each part of your air duct work and how to ensure they keep supplying your home with cool air all year long in Dubai.

The Different Parts of Your HVAC Ductwork

Your air ductwork system is made up of several different parts depending on your building’s needs. Although HVAC systems differ from maker to maker, they come with several similar components. Some of these include:

HVAC Ductwork Diagram

What are air conditioning evaporator coils and what do they do?

The evaporator coil is the second temperature coil that makes up your air conditioning system. It is located inside the indoor unit of a split AC system close to where the blower fan is and is responsible for absorbing heat from indoor spaces (see image below).

evaporator coil

1. Condenser coil issues

The air conditioning process sucks air from the inside of the home, filters it, and passes it across to the compressor to be conditioned. This air passes through your pipes, ducts, and trunks which come together to make up a major part of your HVAC ductwork.

Ducts transport air from the central supply trunk to each room of your home. The trunk feeds directly to the main cooling unit. Pipes, ducts, and trunks come in many shapes and types but are most commonly made of steel. However, other rigid insulating materials such as plastic or fiberglass may be used.

2. Duct connections and transitions

Your pipes and ducts connect to the central trunk at different points using connectors and transitions. Connectors come in the form of take-off systems, cleats, and turning vanes that work together to create pathways in which cool air flows through your home. Air ductwork transitions come in different types and shapes, but they all work to minimize restriction and balance air flowing into your space. They branch off from the central trunk to supply the different rooms in your building.

3. Flues

These are often found in dual temperature HVAC systems or in air conditioning equipment that produces noxious fumes during the heating or cooling process. Flues are essentially air conduits to the outside through which the return plenum vents unrecycled air.

4. Refrigerant lines

Refrigerant lines are the two insulated copper lines that connect the outdoor air conditioning unit to the indoor evaporator coil. The smaller line carries liquid while the larger one carries the refrigerant into the compressors and is often called the suction line or vapor line. The refrigerant is what allows your HVAC system to cool your air.

5. Air handlers

This is a large metal box in the HVAC ductwork that contains the blower fan, filters, and sound dampers or attenuators. The blower fan propels air throughout the air ductwork system ensuring that it gets to where it’s supposed to go. Air handlers may also include the cooling coils and other cooling elements.

6. Drain pans and lines

Your air conditioner’s cooling process creates plenty of condensation which can build up within the AC unit. If left inside your system, condensation can cause metals to rust and encourage mold build up inside your home. This is where drain pans come in, they accumulate the condensation build-up and direct it out of the building through the drain line.

When Should I Repair or Replace My HVAC Ductwork?

Contact a professional air ductwork professional if you notice a drop in your air quality or supply. Your technician should be able to analyze your entire air ductwork to find out what the problem is and proffer solutions.

You should think twice before attempting to clean your air duct system yourself. Maintaining an air ductwork system requires some level of technical knowledge, tools, and expertise. Without these, you may end up doing your HVAC system more harm than good.

Mistral Cleaning Services provides exceptional AC ductwork cleaning, maintenance, repairs, and installation in Dubai. We can help you keep your HVAC system running optimally throughout its lifetime. Our mission is to maintain clean and healthy living spaces for our customers using efficient processes and high-quality equipment.

When Should I Call a Professional to Clean My Air Duct?

This depends on several factors such as the type of AC system, how you use it, and your location. Dubai’s summers are dusty, prone to sandstorms and extreme weather conditions that may affect your HVAC unit.

This makes having an air conditioner maintenance schedule necessary. Ideally, you should carry out a thorough maintenance check-up at least once every year. However, you should call a professional maintenance company if you notice any problems with your unit.

Scheduling a maintenance service when the climate is much better during winter will ensure that you receive prompt service. This may become more difficult during summers when it is more likely to be dusty. You may have a harder time getting service by then, as that’s when maintenance companies receive a high volume of calls.

dirty ac duct

What Are the Things to Check If Your Air Duct Need to Be Cleaned?

The air duct work system continually transports air in and out of your building. This makes it easy for fine dust and other particles to collect on the inner surfaces of your HVAC ducts, vents, coils, and motors.

Dead hair, skin, and other bio-matter is caught onto the dust and create an environment where bacteria, mold, and other allergens can thrive.
Regular AC duct cleaning is the best way to protect your home and family from these contaminants. Below are some common indicators that show when your HVAC ductwork needs to be cleaned.

1. Vent covers

This is a common problem in a dusty climate like Dubai where the frequent sandstorms can clog up your condenser coils. This can result in a less efficient cooling process and higher electric bills as your AC unit uses more power to cool your space.

AC diffuser removed during AC cleaning

2. Return air registers

Most of the air that is sucked out of your room pass through your return air registers. This means that they easily come in contact with indoor dust, dead hair, and skin. Check the surface of your return air registers for visible signs of dust buildup. The best way to get rid of dust coating is by removing the register and dusting it with a brush.

dusty AC grille that requires AC cleaning

3. Air filters

Air filters remove dust and other particles from your HVAC duct work. Over time, they can get clogged with dust particles that choke off can the flow of air in and out of your building. Ensure that the air filters are clean by pulling them out and changing them if they are clogged with dust.

AC Filters cleaned

4. Cooling compartment

Your cooling compartment contains the blower fan and motor, both of which should be free from dust. Check the cooling compartment regularly by opening it up examining the interior as well as the furnace controls for signs of dust. The presence of dust indicates a problem with your HVAC system.

5. AC evaporator coil

The air conditioning coil is where the refrigerant absorbs heat, which is essentially where the cold air comes from. A dusty coil can prevent your AC system from functioning properly. We can access your air conditioning coil by opening the housing panel to check if it has dust clinging to it or its housing walls.

evaporator coil cleaning

Call for Professional AC Maintenance

Your HVAC ductwork system is an essential part of your air conditioning unit. It is made up of several different parts that work together to keep you supplied with clean fresh air all year long. Hiring a professional HVAC duct maintenance technician is the best way to ensure that your ducts keep serving you for a long time to come.

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