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Your HVAC System’s Role In Indoor Air Quality

Your HVAC System’s Role In Indoor Air Quality

maintenance repairman In the HVAC business, the characteristics that describe a comfortable home are defined together as your indoor air quality.  To achieve a maximum comfort level, there are three factors that must be accounted for.  These factors are temperature, humidity level, and cleanliness of the air.  In this two-part series, we will discuss the areas of humidity and indoor pollutants.  Giving details on what each are and how they work to create your most comfortable indoor air quality.

When measuring the amount of water vapor in the air, you will be given a percentage that is called your humidity level.  The percentage given is traditionally expresses as relative humidity and is a comparison of the actual water vapor in the air versus the total amount that the air can hold.  As you may know from experience, warmer air has a higher capacity to hold water when compared to colder air.  This is why the humidity levels are higher in the spring and summer months.

In your commercial building, there are a number of sources of water vapor.  A few of these include activities like cooking and people breathing.  On average, four individuals put out three gallons of water into the air each day, combined.

To keep the humidity levels at a satisfactory state within your building, you’ll need to consider the outdoor air temperature.  This is important for maximum comfort, as well as to prevent condensation from causing damage to wood materials within the structure.  The following chart displays recommended relative humidity levels based upon incremented outdoor air temperatures:

  • 40 F………..45%
  • 30 F………..40%
  • 20 F………..35%
  • 10 F………..30%

It is also important to remember that keeping the humidity levels above 50% can cause microbial growth such as mold.  Always take this into consideration, as mold can have adverse affects on your building and on the people whom inhabit it.  If you have problems with keeping any indoor area below the 50% level, the use of a dehumidifier will be required to obtain proper conditions.

Thank you for joining us for part one of this two part series today!  Next time we will discuss indoor pollutants and how to create an environment without them.  If you have more questions on either of these topics, feel free to contact the St. Peter’s area commercial HVAC service specialists at American Services!

Industrial Portable Cooling Systems

Industrial Portable Cooling Systems

industrial cooling systems in MOAmerican Services HVAC heating and  cooling installation  in St. Louis knows that with energy costs continuing to rise, now is the perfect time to start looking for alternative cooling methods to cool your plant this summer. Instead of relying solely industrial air conditioning systems which need to run constantly, you will find other types of cost effective solutions available, which can actually help lower your overall energy costs.

One option you can explore is installing industrial high pressure water systems, which use water vapor to providing a cooling effect. Some models can even lower surrounding air temperatures by as much as twenty degrees without the use of any other type of cooling.

The costs to operate different types of alternative industrial air conditioners can be lower than one might expect.  For instance, one option is a 24-inch fan has an operational cost of $0.055 per hour with a CFM of 6,920 and a 100 foot throw. There are certainly other energy efficient cooling products available as well, or you can have a custom system just for your facility.

Protect your employees, processes and equipment from their hottest environments with portable air conditioner solutions. Portable AC units help reduce the risk of heat exhaustion and increase your employee morale, leading to improved manufacturing quality and productivity. Spot cooling units prevent product defects by eliminating warping and condensation due to excess heat and humidity. Portable cooling units are known to reduce processing time by up to 94% for most heat related production processes.

According to one expert in the industry, “We have a very hot warehouse in the summertime and have a number of applications for the portable air conditioner system that has proven successful for us for the last two years and we are looking to add several more units to our warehouse facility.”

Contact us today at American Services heating and cooling installation service in St. Louis today for a quote on a new cost effective cooling system for your facility today.

Design Issues for Commercial Heating Systems

Design Issues for Commercial Heating Systems

commercial heating in MOAmerican Services Heating installation in Chesterfield MO knows that the latest advance in commercial heating installation is called condensing technology. This new technology helps bring significant cost savings by reducing your fuel consumption rate. One of the basic principles of this relatively new technology is acheived by capturing the energy which would otherwise be wasted through the flue in a conventional system.

Cost savings occurs by cooling hot flue gases in the heat exchanger, the water vapor is condensed releasing the latent heat and delivering a net calorific value (NCV) efficiency of up to 110%.  When you compare this to conventional gas-fired systems, savings of up to 15 percent can be realized, for oil systems the savings is up to 10 percent.

This condensation only occurs when the return temperature is below the dew point of the flue gases (about 56 degrees C), the benefits of the condensing boiler are developed from having the lowest possible return and flue temperatures.

The efficiency of the heat exchanger combined with low return temperature and modulating operation are the key factors in creating the most energy efficient and most economical heating system.

By keeping your boiler operating in the condensing mode for longer periods of time, there is a greater the fuel savings potential. The savings is achievable on new heating installations where the entire system is designed to maximize the benefits of condensing technology. Return temperature is in determining if the installation of a condensing boiler is an economical option, therefore new systems should be designed accordingly.

Existing systems should also be taken into consideration.  Simply replacing an old boiler with the new more efficient condensing model is not the answer.  In many cases the design parameters of an existing system are based around a constant 80/60 degree C. The newer condensing replacement unit cannot operate at this temperature.

Commercial heating system design is now more versatile than ever.  Commercial heating systems can be designed for virtually every commercial or industrial application.