If you want to ensure that your central heating and cooling system works at all times, you need to understand how it operates ASAP!
Although parts of the same device, the central heat and air within a heating, ventilation, and air conditioning (HVAC) unit operate very differently. The major parts of a centralized heating and cooling system include a furnace, air conditioning, a thermostat, and ductwork. How these parts get used is dependent on whether you plan to use the heat or cool air.
To ensure that you know how to use a central heating and cooling system, we are going over details on how both systems operate.
Get ready to feel either hot or cold at all times!
Central Heating and Cooling System: Heating
Heating systems run on either gas, fuel, or a hybrid of both. The main part of a heating system is its furnace. Within a furnace, there are heat exchangers, burners, a blower, and a flue.
Within a centralized heating system, burners create combustion gases that go through a heat exchanger. Any air that goes across the heat exchanger gets warmed. This warm air then goes through air ducts so that it can be spread around a home.
Central Heating and Cooling System: Cooling
The most common centralized cooling system runs on a split system. Within this split system, there are components that function outdoors and components that function indoors.
The outdoor cooling system components include a condenser coil and a compressor. A cooling chemical called refrigerant pumps through the compressor in a cooling system.
The indoor cooling system component includes an evaporator coil. When warm air from inside a home blows across the evaporator coil, the heat energy goes to the evaporator coil’s refrigerant outside of the home. The refrigerant then cools this air and pumps it back into the compressor.
In the cooling system, this newly reformed cool air eventually goes through the same air ducts that the central heating system air goes through to spread around a home. Both the central heating and cooling systems are highly dependent on thermostats to monitor when the air temperature increases or decreases at a level to release the cool or warm air.
Different HVAC Air Systems
Whether it is in the form of a heating system or a cooling system, there are many different forms of HVAC air systems. These HVAC air systems include forced air systems, gravity air systems, and radiant air systems.
Forced Air Systems
In forced-air systems, warm or cool air gets pushed through metal ducts with a blower. Warm air gets pushed through some ducts and cool air gets pushed through other ducts.
Gravity Air Systems
Because cold air sinks and warm air rises, gravity air systems work with rising warm air from the basement of a house to heat a home. When cool air sinks, the gravity air system reheats the cool air and uses it as warm air as it rises again to spread heat in the home.
Radiant Air Systems
Radiant air systems heat up all parts of a room, from the ceilings to the floors. Because of its function, radiant air systems cannot work with air conditioning.
When Do You Plan on Using Your Heating and Cooling Systems?
Whether it is to keep things warm during the winter or cool during the summer, there is a time and place to use a central heating and cooling system. Central heating and cooling systems are usually used during seasons of extreme weather conditions, like the winter and summer.
To learn more about heating and cooling systems, check out our HVAC services page.