HVAC- heating, ventilation, and air conditioning- It is a system that provides different types of heating and cooling services to residential and commercial buildings. Its function is to provide thermal comfort, humidity control and acceptable indoor air quality.
The majority of home and smaller commercial air conditioning systems circulate a compressed gas refrigerant in a closed “split” system to cool and condition inside air. The refrigerant has to be re-cooled and condensed, and outside air is the medium most often used to accomplish this. The term “split” simply means that components are divided into inside and outside portions as opposed to being located together in a “package” unit. The refrigerants, widely recognized by the trademark “freon” (which is a registered trademark of the DuPont company for refrigerants), helps cool and dehumidify the inside air. In a “forced air” system, an internal blower circulates the conditioned air through ducts to the rooms where the cooler air is needed. The air ducts generally run either below the ceiling and inside the rooms (conditioned air) or in the attic (unconditioned air). An outside fan pulls air across the external parts of the system to cool and condense the refrigerant.
Most systems have a lifetime of 10 to 15 years, with gas furnaces lasting 20-25 years. As your equipment gets older, its efficiency can decrease dramatically. You may notice that it gets noisier and needs repairs more often. If you live near bodies of water or the ocean, your system’s life expectancy may be drastically shortened due to the harsh environment. If your system is over 10 years old, you should have your system checked for maintenance or replacement.
BTU stands for British Thermal Unit, this unit of measure is used to measure cooling or heating capacity; 1 BTU is the amount of heat required to raise (or lower) the temperature of 1 pound of water 1 degree Fahrenheit. There are 12,000 BTU’s in 1 Ton of Cooling.
SEER stands for Seasonal Energy Efficiency Ratio. It measures air conditioning and heat pump cooling efficiency, which is calculated by the cooling output for a typical cooling season divided by the total electric energy input during the same time frame. A higher SEER rating means greater energy efficiency.
Two-stage heating means the furnace has two levels of heat output: high for cold winter days and low for milder days. Since the low setting is adequate to meet household heating demands 80% of the time, a two-stage unit runs for longer periods and provides more even heat distribution.
You may not find the filter in your home or business to be very important, but you should! There are actually 3 ways air can get filtered-1) through your AC filter, 2) it will get filtered through the AC coil and 3) it will get filtered again through YOURS and YOUR FAMILY’S lungs! Furnace manufacturers put inexpensive fiberglass filters into their furnaces to remove airborne particles that might damage the fan and the heating coil. Particle buildup can also decrease the efficiency of your furnace, as the furnace has to work harder to pull air through the return. More expensive filters can also improve the air quality in your house by removing pollen, bacteria and mold spores from the air. Don’t let YOUR lungs be the filter for your air conditioner! Use the maximum efficiency filter designed for your system.This is especially important if you or someone in your family suffers from allergies or respiratory illnesses. If you do not know which filter that may be, then just ask us, we will be glad to point you in the right direction!
It is a temperature-sensitive device that controls and regulates the temperature in a space for systems such as a furnace, air conditioner, or both. When the indoor temperature drops below or rises above the thermostat setting, the device initiates or terminates either the heat or cooling modes, depending upon the thermostat setting and temperature set point. When initiated your furnace or air conditioner runs to warm or cool the house air to the setting you selected for your family’s comfort.
UV light can be harmful just as the sun’s UV light can be when someone is exposed for too long a time. One should neither look at or touch a UV light bulb while it is on for any length of time. Fortunately, when the UV light system is installed in your HVAC system, there is no direct or harmful exposure to you or your family. Remember to power off your purifier before replacing the lamps and do not look directly at a lamp that is powered on.
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