{"id":360,"date":"2026-04-02T04:04:10","date_gmt":"2026-04-02T04:04:10","guid":{"rendered":"http:\/\/30606.nhandh.vinawebsite.vn\/linh-vuc-hoat-dong-6\/"},"modified":"2026-04-03T03:47:07","modified_gmt":"2026-04-03T03:47:07","slug":"air-conditioning-system","status":"publish","type":"post","link":"https:\/\/trivietme.vn\/en\/air-conditioning-system\/","title":{"rendered":"Air conditioning System"},"content":{"rendered":"<p><span style=\"font-size: 17px;\">Have you heard a lot about the phrase HVAC? So what is HVAC?<\/span><\/p>\n<p><span style=\"font-size: 17px;\"><strong>1. HVAC system definition<\/strong><\/span><br \/>\n<span style=\"font-size: 17px;\">HVAC stands for heating, ventilating, and air conditioning collectively referred to as air conditioning system.<\/span><\/p>\n<p><span style=\"font-size: 17px;\"><img loading=\"lazy\" decoding=\"async\" class=\" wp-image-1341 aligncenter\" src=\"https:\/\/trivietme.vn\/wp-content\/uploads\/2021\/03\/hvac-la-gi--300x200.jpg\" sizes=\"auto, (max-width: 380px) 100vw, 380px\" srcset=\"https:\/\/trivietme.vn\/wp-content\/uploads\/2021\/03\/hvac-la-gi--300x200.jpg 300w, https:\/\/trivietme.vn\/wp-content\/uploads\/2021\/03\/hvac-la-gi--768x512.jpg 768w, https:\/\/trivietme.vn\/wp-content\/uploads\/2021\/03\/hvac-la-gi-.jpg 900w\" alt=\"\" width=\"380\" height=\"253\" \/><\/span><\/p>\n<p><span style=\"font-size: 17px;\"><strong>2. Purpose of the HVAC system<\/strong><\/span><\/p>\n<ul>\n<li><span style=\"font-size: 17px;\">Adjust the temperature of the room<\/span><\/li>\n<li><span style=\"font-size: 17px;\">Provide cool air in the room<\/span><\/li>\n<li><span style=\"font-size: 17px;\">Remove contaminants from the air by using filters at different stages<\/span><\/li>\n<li><span style=\"font-size: 17px;\">Efficient raw material operation<\/span><\/li>\n<\/ul>\n<p><span style=\"font-size: 17px;\"><strong>3. Application of HVAC system<\/strong><\/span><br \/>\n<span style=\"font-size: 17px;\">HVAC is applied in many areas of our daily life such as air conditioning and ventilation systems in high-rise buildings, shopping centers, villas, apartments as well as townhouses.<\/span><\/p>\n<p><span style=\"font-size: 17px;\">In addition, HVAC is also used in heavy industries such as power plants, aircraft, spacecraft &#8230;<\/span><\/p>\n<p><span style=\"font-size: 17px;\"><strong>4. Structure of HVAC<\/strong><\/span><\/p>\n<p><span style=\"font-size: 17px;\"><img loading=\"lazy\" decoding=\"async\" class=\" wp-image-1436 aligncenter\" src=\"https:\/\/trivietme.vn\/wp-content\/uploads\/2021\/03\/hvac-300x200.jpg\" sizes=\"auto, (max-width: 556px) 100vw, 556px\" srcset=\"https:\/\/trivietme.vn\/wp-content\/uploads\/2021\/03\/hvac-300x200.jpg 300w, https:\/\/trivietme.vn\/wp-content\/uploads\/2021\/03\/hvac.jpg 678w\" alt=\"\" width=\"556\" height=\"370\" \/><\/span><\/p>\n<p><span style=\"font-size: 17px;\"><strong>4.1. Heating<\/strong><\/span><br \/>\n<span style=\"font-size: 17px;\">Used to generate heat (warmth) in buildings or commercial centers, this is usually done by a central heating system.<\/span><\/p>\n<p><span style=\"font-size: 17px;\">The general structure of the heating system includes:<\/span><\/p>\n<ul>\n<li><span style=\"font-size: 17px;\">Boilers<\/span><\/li>\n<li><span style=\"font-size: 17px;\">Fireplace or heat pump: Used to heat water, steam or possibly air in a central location such as: a fireplace room in a house, a mechanical room in a large building. The hot steam can be transferred by convection, heat conduction or radiation.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-size: 17px;\">Or you can use the basic pneumatic system and heat exchange cycle as follows:<\/span><\/p>\n<ul>\n<li><span style=\"font-size: 17px;\">When it detects that your house is too cold, the system sends a signal to the activity controlled heater to bring warm air back to all rooms using a heater or direct blown air conditioner. or air duct.<\/span><\/li>\n<li><span style=\"font-size: 17px;\">Hot supply when it&#8217;s cold and cool when it&#8217;s hot. That is the simple principle of the HVAC air-conditioning system. There is a simple everyday requirement that someone regulate the ambient temperature. But sometimes, the air conditioner is not running or your heating system is not working. Let&#8217;s look at how to solve some of those problems and delve into the different systems to see how they work to better understand the HVAC system and avoid these problems from occurring.<\/span><\/li>\n<li><span style=\"font-size: 17px;\">Forced air HVAC systems are the most common type of home. The most basic of the basics is that your HVAC system is designed to suck air from the intake valve, heat the air and then push it through the duct and out into the vents. If you are seeing spikes of dust jumping from the vents, change your filters and vacuum the inlet valve to stop them. If dust is still coming out, you need to clean your pipes.<\/span><\/li>\n<li><span style=\"font-size: 17px;\">Your forced gas system will be either gas or electrical. If you have gas, you will need the warning light to be constantly lit. The flame will appear blue. If you can&#8217;t see the warning light, nothing heats the air to blow through your vents. With electricity, if your home has electricity, heat and air will run into your home. If not, check breakers, breakers.<\/span><\/li>\n<li><span style=\"font-size: 17px;\">Principle: Each heat pump has an outdoor condenser unit and an indoor evaporative coil unit. Heat is transferred from one unit to another. When this liquid is compressed, it is a high-pressure, high-temperature liquid. If it is allowed to expand (depressurize) it turns into a low-temperature, low-pressure gas. 3-phase process: liquid -&gt; High pressure gas -&gt; Low pressure gas. The gas then absorbs heat. The heat pump cools from the outdoor air and delivers it during winter. Cold air contains a lot of heat, although this sounds counterintuitive and weird. They do the opposite in winter. There is still a fan, like in a forced air system, that blows hot or cool air into the ducts.<\/span><\/li>\n<li><span style=\"font-size: 17px;\">Geothermal heat pumps perform the same functions as a conventional pump, but they use the natural temperature of the earth for cooling and warming rather than gas or electricity. The tube is run in the ground and this same coolant is heated by the earth&#8217;s temperature and then delivered to the home. This process is more environmental because it uses less energy and has no fossil fuels.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-size: 17px;\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-970 aligncenter\" src=\"https:\/\/trivietme.vn\/wp-content\/uploads\/2021\/03\/9-300x218.png\" sizes=\"auto, (max-width: 547px) 100vw, 547px\" srcset=\"https:\/\/trivietme.vn\/wp-content\/uploads\/2021\/03\/9-300x218.png 300w, https:\/\/trivietme.vn\/wp-content\/uploads\/2021\/03\/9.png 630w\" alt=\"\" width=\"547\" height=\"397\" \/><\/span><\/p>\n<p><span style=\"font-size: 17px;\"><strong>4.2. The ventilation system (ventilation)<\/strong><\/span><\/p>\n<p><span style=\"font-size: 17px;\">The job of this system will be to alter or replace the airflow in any space for temperature control or to remove any combination of humidity, odor, smoke, heat, dust, or bacteria inside the air either CO2 and oxygen supplementation.<\/span><\/p>\n<p><span style=\"font-size: 17px;\">In many cases, ventilation also involves exchanging the airflow with the outside as well as circulating the airflow in the building.<\/span><\/p>\n<p><span style=\"font-size: 17px;\">The ventilation system is considered one of the very important factors in maintaining the quality of the air inside each area in buildings.<\/span><\/p>\n<p><span style=\"font-size: 17px;\"><strong>How many ventilation methods are available?<\/strong><\/span><\/p>\n<p><span style=\"font-size: 17px;\">Currently, there are 2 main ventilation methods: compulsory ventilation (ventilation fan) and natural ventilation.<\/span><\/p>\n<p><span style=\"font-size: 17px;\">Air enters some space, then it recirculates through the inlet and returns to the air handling unit.<\/span><\/p>\n<p><span style=\"font-size: 17px;\">Some of the returned air will be consumed and replaced by 10 to 20% fresh outside.<\/span><\/p>\n<p><span style=\"font-size: 17px;\">\u00a0\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0<img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-1343\" src=\"https:\/\/trivietme.vn\/wp-content\/uploads\/2021\/03\/Clean_Air_Systems-300x225.jpg\" sizes=\"auto, (max-width: 498px) 100vw, 498px\" srcset=\"https:\/\/trivietme.vn\/wp-content\/uploads\/2021\/03\/Clean_Air_Systems-300x225.jpg 300w, https:\/\/trivietme.vn\/wp-content\/uploads\/2021\/03\/Clean_Air_Systems-1024x768.jpg 1024w, https:\/\/trivietme.vn\/wp-content\/uploads\/2021\/03\/Clean_Air_Systems-768x576.jpg 768w, https:\/\/trivietme.vn\/wp-content\/uploads\/2021\/03\/Clean_Air_Systems-1536x1152.jpg 1536w, https:\/\/trivietme.vn\/wp-content\/uploads\/2021\/03\/Clean_Air_Systems.jpg 2048w\" alt=\"\" width=\"498\" height=\"374\" \/>\u00a0<img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-1345\" src=\"https:\/\/trivietme.vn\/wp-content\/uploads\/2021\/03\/image0022-300x225.jpg\" sizes=\"auto, (max-width: 496px) 100vw, 496px\" srcset=\"https:\/\/trivietme.vn\/wp-content\/uploads\/2021\/03\/image0022-300x225.jpg 300w, https:\/\/trivietme.vn\/wp-content\/uploads\/2021\/03\/image0022.jpg 600w\" alt=\"\" width=\"496\" height=\"373\" \/><\/span><\/p>\n<p><span style=\"font-size: 17px;\"><strong>4.3. Air conditioning<\/strong><\/span><br \/>\n<span style=\"font-size: 17px;\">Mission: Provide required airflow and humidity for all or part of the building. Normally, buildings with air conditioning installed often have closed doors, opening windows will reduce the cooling efficiency from the air conditioning system.<\/span><\/p>\n<p><span style=\"font-size: 17px;\">Air conditioning and refrigeration are usually created by removing heat from within the system. The temperature of the air can be removed by radiation, convection or by transmission through a chiller. Some mediums that help transmit cold such as water, air, ice, chemicals or collectively known as refrigerants. These refrigerants are used in heat pump systems, in which the compressor is used to control the thermodynamic cooling cycle, or in a refrigeration system by using pumps to drive the cooling cycle. transfer a refrigerant (usually water or a glycol mixture).<\/span><\/p>\n<p><span style=\"font-size: 17px;\"><strong>Provide cool air in summer<\/strong><\/span><\/p>\n<p><span style=\"font-size: 17px;\">The thermostat detects when the inside of the house heats up, and signals the air conditioning system to provide cool air throughout the home.<\/span><\/p>\n<p><span style=\"font-size: 17px;\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-1347 alignnone\" src=\"https:\/\/trivietme.vn\/wp-content\/uploads\/2021\/03\/14170_i-300x161.jpg\" sizes=\"auto, (max-width: 354px) 100vw, 354px\" srcset=\"https:\/\/trivietme.vn\/wp-content\/uploads\/2021\/03\/14170_i-300x161.jpg 300w, https:\/\/trivietme.vn\/wp-content\/uploads\/2021\/03\/14170_i-768x411.jpg 768w, https:\/\/trivietme.vn\/wp-content\/uploads\/2021\/03\/14170_i.jpg 800w\" alt=\"\" width=\"354\" height=\"190\" \/>\u00a0\u00a0<img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-962\" src=\"https:\/\/trivietme.vn\/wp-content\/uploads\/2021\/03\/7-300x74.jpg\" sizes=\"auto, (max-width: 763px) 100vw, 763px\" srcset=\"https:\/\/trivietme.vn\/wp-content\/uploads\/2021\/03\/7-300x74.jpg 300w, https:\/\/trivietme.vn\/wp-content\/uploads\/2021\/03\/7.jpg 555w\" alt=\"\" width=\"763\" height=\"188\" \/><\/span><\/p>\n<p><span style=\"font-size: 17px;\"><strong>5. Cycle of HVAC system<\/strong><\/span><\/p>\n<ul>\n<li><span style=\"font-size: 17px;\">Supply Air: The supply of air, which includes cold air and hot air.<\/span><\/li>\n<li><span style=\"font-size: 17px;\">Return Air: Bring the air back.<\/span><\/li>\n<li><span style=\"font-size: 17px;\">Exhaust Air: Exhaust air that is not clean, usually exhausted in restrooms.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-size: 17px;\"><strong>6. Signs of HVAC system.<\/strong><\/span><br \/>\n<span style=\"font-size: 17px;\">The most noticeable sign when having the <strong>HVAC system<\/strong> is the pipes running throughout the building. Currently, pipes serving HVAC usually have 3 different shapes: Square (Rect), Round (Round) and Oval.<\/span><\/p>\n<p><span style=\"font-size: 17px;\">However, for easy fabrication and construction, people often use two types of pipes: square and round.<\/span><\/p>\n<p><span style=\"font-size: 17px;\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-562 alignleft\" src=\"https:\/\/trivietme.vn\/wp-content\/uploads\/2021\/03\/lvhd-6-300x168.jpg\" sizes=\"auto, (max-width: 425px) 100vw, 425px\" srcset=\"https:\/\/trivietme.vn\/wp-content\/uploads\/2021\/03\/lvhd-6-300x168.jpg 300w, https:\/\/trivietme.vn\/wp-content\/uploads\/2021\/03\/lvhd-6.jpg 560w\" alt=\"\" width=\"425\" height=\"238\" \/><\/span><\/p>\n<p><span style=\"font-size: 17px;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-1349\" src=\"https:\/\/trivietme.vn\/wp-content\/uploads\/2021\/03\/thiet-ke-he-thong-hvac-cho-phong-sach-300x211.png\" sizes=\"auto, (max-width: 355px) 100vw, 355px\" srcset=\"https:\/\/trivietme.vn\/wp-content\/uploads\/2021\/03\/thiet-ke-he-thong-hvac-cho-phong-sach-300x211.png 300w, https:\/\/trivietme.vn\/wp-content\/uploads\/2021\/03\/thiet-ke-he-thong-hvac-cho-phong-sach.png 500w\" alt=\"\" width=\"355\" height=\"250\" \/>\u00a0<img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-1351\" src=\"https:\/\/trivietme.vn\/wp-content\/uploads\/2021\/03\/unnamed-13-300x224.jpg\" sizes=\"auto, (max-width: 333px) 100vw, 333px\" srcset=\"https:\/\/trivietme.vn\/wp-content\/uploads\/2021\/03\/unnamed-13-300x224.jpg 300w, https:\/\/trivietme.vn\/wp-content\/uploads\/2021\/03\/unnamed-13.jpg 512w\" alt=\"\" width=\"333\" height=\"249\" \/><\/span><\/p>\n<ul>\n<li><span style=\"font-size: 17px;\"><em><strong>For further information please contact:<\/strong><\/em><\/span><\/li>\n<li><span style=\"font-size: 17px;\"><em>Tri Viet Mechanical Electrical Trading Co.,Ltd<\/em><\/span><\/li>\n<li><span style=\"font-size: 17px;\"><em>Address: 89\/1\/79 Street 8, Tang Nhon Phu Ward, HCM City, Vietnam<\/em><\/span><\/li>\n<li><span style=\"font-size: 17px;\"><em>Phone: 028.2250.8485<\/em><\/span><\/li>\n<li><span style=\"font-size: 17px;\"><em>Email: info@trivietme.vn \u2013 Website: www.trivietme.vn<\/em><\/span><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Supply of air conditioners, copper pipes, and refrigerant gas &#8211; Installation of air conditioning systems, AHUs, and ventilation systems.<\/p>\n","protected":false},"author":1,"featured_media":563,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[20,19],"tags":[],"class_list":["post-360","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-business-lines","category-scope-of-work"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - 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