Skip to main content

How Does An HVAC System Work?

How Does An HVAC System Work?

ThermostatYour commercial HVAC system controls the movement, quality, and temperature of the air within your building.  The system you have will behave in a repetitive cycle to maintain the quality of the environment you want.  Here are some basic HVAC components that allow that to happen.

Air Intake – This part of the system brings outside air into your building using a fan, thus providing fresh air to the system.

Air Handling Unit – This part of the system is responsible for filtering and adjusting the temperature of the fresh air that is taken in.

Supply Ducts – Your supply ducts take the filtered and cooled or heated air to the locations around your building.  You will find these on the floor or on the walls of your building.

Return Ducts – Your return ducts act in a contradictory way to your supply ducts.  Their job is to take the old air out of a room and recycle it in your Air Handling Unit.

Exhaust Ducts – This part of your system takes any excess air and removes it from the system.  You will find your exhaust ducts at the end of your HVAC system between the return ducts and Air Handling Unit.

Your commercial HVAC system is a very complicated unit.  These are just the basics of how a standard unit functions.  Please consider always using a professionally trained HVAC company for all of your HVAC related service, parts, and maintenance.

If you are in need of commercial HVAC service near St. Charles, the team at American Services can help.  We employ only the best HVAC technicians and always stand behind the quality of our work.  Give us a call today!  We would be proud to serve you!


Energy Efficient Integrated HVAC System

Energy Efficient Integrated HVAC System

commercial HVAC Service in MOAmerican Services HVAC installation service in Missouri knows that new trends for sustainability in Commercial buildings are becoming more and more popular.

High Performance buildings are one of the most recent concepts in sustainable energy for commercial buildings.  There are certain criteria that define high performance buildings including properties that improve efficiency and decrease water consumption.

Of course HVAC systems are one of the largest energy consumers in commercial spaces, the focus has always been on improving the HVAC system itself.  But today the attention is more on all of the systems in the building which interconnect instead of just the HVAC system.

Monitoring and control of building systems allow for more control of the overall energy use.

According to Robert Wilkins, VP of Public Affairs states; “While the energy efficiency of individual components and HVAC equipment has risen sharply over recent decades, the trend now is toward considering the overall energy performance of integrated subsystems and integrated building systems.”

High Performance buildings are very efficient and less expensive to operate and they provide a high level of comfort while reducing overall energy and water consumption.

According to Kevin C. McNamara, VP of Commercial Air Conditioning Division, LG Electronics;: “Today’s high-performance buildings take sustainability to the next level with a holistic approach that considers the building’s total environmental impact as well as occupant comfort.” He also referred to the high performance of buildings as a “cradle-to-grave approach to sustainability.”

As more commercial building owners seek high performance building components, the need for communication between HVAC technicians and building owners has increased.

Integrated design is a common trend in the industry of building construction today and project teams composed of architects, engineers, and contractors will work together in order to design a high performance commercial building.

Proper maintenance will keep the building running at a high level after installation of new systems are complete.

To learn more about high performance energy saving systems, contact us today at American Services in MO.


HVAC Upgrades

HVAC Upgrades

HVAC Services in MOAmerican Services commercial HVAC installation in Saint Louis knows that it’s feasibly possible to replace one particular component of an HVAC system and not have to repair or replace any other for the ten year life of an HVAC system. However it’s highly unlikely, Certified HVAC technicians at American Services will verify this thru vast experience. If upgrading one component is a consideration, you may want to take a look at the whole picture.

“You wouldn’t want to replace one piece and not consider the other pieces,” says a certified tech for a large west coast HVAC installer “If you have a chiller that’s reaching the end of its useful life, you have to consider the condition of the cooling tower. It’s a mistake to replace the component of a system that has an obvious problem and not have the foresight to take a holistic look at it and say, ‘the chiller’s 30 years old and it has a problem, what else is that old?'”

One of the first and most important places to start inspecting when looking for other areas that might be affected by an upgrade is the control system. If you are operating with a legacy control system, you’re running the risk of either limiting your upgrade options or not getting the most out of them. These old outdated control systems will keep your system running inefficiently even with an HVAC upgrade.

“I wouldn’t limit myself with an old BAS or energy management system and have that tail wag the dog, if you will,” another HVAC contractor says. “I wouldn’t say, ‘since the controls can’t handle certain types of equipment, let’s not go down that road.’ I would start with the main equipment and then work from there.” If you’re going to be there five years or longer, then I would be looking at upgrading,” he says. Stretching a system’s lifespan while repairing when needed becomes a more attractive option.

Commercial Heating Efficiency Options

Commercial Heating Efficiency Options

heating service in MissouriIn order to maintain a comfortable climate, most commercial buildings must pay out a significant amount in energy expenses each year. Reducing those expenses can be challenging for most commercial businesses, although the use of solar heating systems can offset some of this energy expense. There are some methods available for “reducing” the energy used by this system, helping recovery of some energy costs.

Air Filters Need Regular changing
the number one way to keep heating and air systems operating at peak.  A monthly changing of the air filters is recommended particularly during winter and summer months. These filters effectively prevent dust and other materials from building up throughout the duct system.

Give your commercial heating system a tune up annually. Professionals recommend that both commercial and residential structures have a certified HVAC technician such as American Services HVAC maintenance in Florissant give your heating system a complete physical tune up. This should include ductwork. These annual physical checkups by professional HVAC technicians will insure that commercial systems run smoothly and efficiently. These complete heating system evaluations will also help identify any potential hazards, or mechanical breakdowns, resulting in prevention of major repair costs down road.
Seal Ducting-Seal the furnace and cooling ducts in your building, this will prevent the treated air from escaping. Ducts move the warm air throughout your building; if cracks, holes, or deterioration are present warm air will escape leaving cold spots throughout your building. Sealing and insulating your ductwork can save as much as 20 percent of your monthly energy costs.
Install a programmable thermostat-controlling the temperature in your building on a consistent basis, even when no one is present is accomplished by the use of a programmable thermostat. In commercial settings keep the building cooler at night and warmer during the day.

In summary; your commercial heating and air systems need a regularly planned maintenance plan. Systems over 10 years of age should be evaluated for upgrades or installation of newer models. Your American Services technician can provide information and guidance in these maintenance matters. Remember newer models or system upgrades operate much more efficiently than systems built 10 years ago.