Gone are the days when HVAC was the term used by only industry professionals, and the wealthy people were aware of it that possesses the affordability for HVAC. Now it is a generic term for air conditioner. But what exactly is the HVAC? What are the HVAC basics? And how is it different from AC? The further part of this article will give you the answers to all these questions.
What is HVAC?
HVAC is the abbreviation for heating, ventilation, and air conditioning. It is a system consisting of technology that works for heating, cooling, and ventilating a residential or commercial building. The main task of an HVAC system is to satisfy the thermal comfort of the occupants by using fresh air from outdoor to maintain high indoor air quality. HVAC system and its mechanism are primarily designed to take control of the environmental conditions inside the building. The HVAC system keeps the inner space of your building warm and cozy during winter and makes you feel calm and fresh during summer.
Difference between HVAC and AC
The terms HVAC and AC are synonymously used, but they are different. HVAC stands for heating, ventilation, and air conditioning, whereas AC stands for air conditioning, generally referred to as a system designed to cool the air in your space. There are two types of air conditioning system: windows unit and central AC. HVAC include the heat pump and gas furnace along with the AC unit. Hence HVAC deals with heating and cooling the indoor space.
What are HVAC basics?
An HVAC system can be used for residential as well as commercial buildings. Its purpose is not limited to warming or cooling the space; it improves indoor air quality. There are several different kinds of HVAC, but the aim is the same-
In the olden days, the houses are so constructed to get natural ventilation by fresh air through many doors, windows, and vents. But these days, the construction is different, making the homes tightly sealed and making ventilation an essential component in the HVAC system. The HVAC system draws the air in and passes it to the air handling unit. Here the air passes through filters to remove dirt, dust, and other impurities.
Further, the air is either sent to get heated or cooled. Also, the excess humidity of the air gets removed. Once the air gets filtered and reaches a comfortable temperature, it is directed into the home.
There are nine parts of an HVAC system. They are as follows-
- Furnace
- Heat exchanger
- Evaporator coil
- Condensing unit
- Refrigerant tube
- Thermostat
- Ductwork
- Vents
- Heat pump
Types of HVAC systems
An HVAC system ranges from a residential furnace and air conditioning unit suitable for small spaces to a large and complex computer-driven system ideal for commercial buildings. There are mainly four types of HVAC systems for commercial buildings as well as for residential buildings. One can choose by considering the coverage area, the climatic conditions, and the purpose.
The single split system is the most common and economical type of HVAC system commonly used in residential buildings or small commercial buildings. It allows individual control on heating and cooling for each space. Hence it is ideal for offices with several rooms.
This HVAC system typically performs refrigeration and air conditioning control using air conditioners that pass the air through refrigeration lines and furnaces in a single system that circulates the air through ducts to the available spaces. Though the drawback is that you need an outdoor unit for each separate room, this consumes precious space.
Multi-split system – They are similar to single split systems in operation but serve better energy efficiency. It consumes less outdoor space as it facilitates the connection of nine indoor units to one outdoor unit. Sensors used in the HVAC system ensure airflow and pressure measurement throughout the system. The HVAC sensor controls the airflow, heating, and cooling of each room and minimizes energy consumption.
The heat pump in the multi-split system is designed to move air in the natural flow. It passes warm air in the cool space, making it an efficient system. However, the system consumes more time for installation; hence the installation cost is higher.
Variable refrigeration flow (VRF) or variable refrigeration volume (VRM) systems are convenient for large commercial buildings. These include an HVAC pressure sensor to operate efficiently and correctly. These systems use a refrigerant as their heating and cooling factor. It is the best system for heating, refrigeration and cooling a medium or large commercial space as a single condenser operated for multiple evaporators. After going through the above article, you must have gathered enough information about the HVAC system. If you still wonder which kind of HVAC system is suitable for your space, then you must google for ‘HVAC supply near me. You can find the best HVAC Company in Mumbai to get a suggestion for the best suitable HVAC for your space. They will supply and install the HVAC system and serve other relevant services.