HVAC (Heating, ventilating and air conditioning systems)
HVAC (heating and ventilation systems) play a vital role in homes, large buildings like schools and hospitals, and data centers.
An HVAC system consists of six basic parts. Students can learn how these parts work together as well as how they diagnose, troubleshoot and fix them in an HVAC program at a trade college.
Air Conditioning
HVAC systems help keep your home cool and dry by exchanging warm moist indoor air for cooler, drier air outside. This helps to prevent mold growth which could otherwise cause health issues and structural damage.
The cooling and heating systems of air conditioning systems are divided into two distinct components. The cooling system is located outdoors and uses fans to distribute cooled, filtered air through your ductwork.
HVAC systems are typically heated by your furnace, while the thermostat controls when the system switches between heating and cooling. Regular maintenance of an HVAC system is crucial to ensure that it functions well.
Furnace
Furnaces create heat by burning fuels like propane or natural gases, and then dispersing that heat throughout your home via vents, fan motors, and ductwork. They can be either gas or electric or dual fuel furnaces which combine both.
Air conditioners keep your home comfortable by absorbing heat, transporting it, and then discharging it. They are therefore an essential component of any HVAC system. These air conditioners are operated by a combination of a fan motor and an evaporator.
Thermostat
A thermostat is a device which monitors and controls temperature in physical systems. It detects temperature variations and takes measures to maintain the environment at its preset limit. Most thermostats also allow for programming.
Many models come with a small switch, or cycle button, to set your air conditioner cooling. You can move it or press the button until a number on the display corresponds to the temperature in your house.
Programmable thermostats are equipped with a number of settings, such as "sleep" times and temperature settings. This allows you to save energy and money by sleeping at night. Other settings let you schedule when and what temperatures you'll be away on weekdays, so your system will not run while you're gone.
Evaporator Coil
The cooling system of any air conditioner relies on the evaporator coils. These copper coils, located inside the air handler or cooling units, are connected directly to the cold refrigerant that flows from its source. This allows them to maintain the temperature at just the right levels.
The blower fans draws warm household air across an evaporator, which absorbs and cools refrigerant. Water vapor condenses on these coils when it passes by, reducing humidity levels in your house.
When your evaporator is kept clean, it will work most efficiently. The heat transfer is reduced if dust and gunk are accumulated on the coil. Your system will have to use more power to reach thermostat settings. You and your HVAC company should set up a plan for regular maintenance.
Ductwork
Ductwork is a network or tubes that are used to distribute air throughout the home from the furnace and air conditioner. When properly designed and implemented, ductwork offers energy efficiency for an affordable price and comfort to its residents. However, when poorly designed or installed, ductwork could damage HVAC equipment, reduce the quality of indoor air, increase energy costs, or lead to expensive repair bills.
Ductwork is a term that refers to vents which are installed into walls, floors, and ceilings to bring air-conditioning into living areas. Most ductwork uses rigid sheet metal in order to limit airflow restrictions, maintain an ideal temperature and prevent air leakage. It is important to regularly inspect ductwork for cracks and holes that may rob conditioned conditioned of its benefits. It is important to clean ductwork periodically because holes or cracks can lead to a loss of conditioned conditioned air. Other types of ductwork include takeoffs that divert a small portion of main duct flow into branch ducts, turning vanes to minimize resistance, and volume control dampers which can be either manually or automatic controlled for optimal temperature regulation.
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HVAC (heating and ventilation systems) play a vital role in homes, large buildings like schools and hospitals, and data centers. An HVAC system consists of six basic parts. Students can learn how these parts work together as well as how they diagnose, troubleshoot and fix them in an HVAC program at a trade college. Air…