{"id":11485,"date":"2024-06-16T22:20:49","date_gmt":"2024-06-16T22:20:49","guid":{"rendered":"https:\/\/topat10.com\/?p=11485"},"modified":"2024-06-16T22:20:49","modified_gmt":"2024-06-16T22:20:49","slug":"how-air-conditioner-blowers-work","status":"publish","type":"post","link":"https:\/\/topat10.com\/?p=11485","title":{"rendered":"How Air Conditioner Blowers Work"},"content":{"rendered":"<p> <br \/>\n<\/p>\n<div>\n<p>An air conditioner\u2019s blower or fan is one of the key components that is needed as part of the air conditioning system. The AC blower, also known as the fan, is responsible for circulating cooled air throughout your home. There are basically four types of fans that are commonly used in HVAC equipment. They are the\u00a0<strong>propeller fan<\/strong>,\u00a0<strong>centrifugal fan<\/strong>,\u00a0<strong>vane-axial fan<\/strong>, and\u00a0<strong>tube-axial fan<\/strong>.<\/p>\n<h2 class=\"wp-block-heading\">What Does an AC Blower Do?<\/h2>\n<p>The primary role of an AC and heat pump blower is to move cooled air from your air conditioner through your ductwork and into your home\u2019s living spaces. It works in conjunction with the evaporator coil (filled with refrigerant), which cools the air, and the condenser unit with the compressor, which releases heat outside. Without a properly functioning blower, your air conditioner will be unable to distribute cool air effectively.<\/p>\n<figure class=\"wp-block-image alignright size-full is-resized\"><img loading=\"lazy\" loading=\"lazy\" decoding=\"async\" width=\"200\" height=\"300\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"data:image\/svg+xml,%3Csvg%20xmlns=\" http:=\"\" alt=\"HVAC unit\" class=\"wp-image-38438 lazyload\" style=\"width:249px;height:auto\" data-lazy-data-sizes=\"auto\" data-srcset=\"https:\/\/d7fcfvvxwoz9e.cloudfront.net\/dom43635\/wp-content\/uploads\/2006\/10\/tips-dealing-hvac-pros-5.jpg 200w, https:\/\/d7fcfvvxwoz9e.cloudfront.net\/dom43635\/wp-content\/uploads\/2006\/10\/tips-dealing-hvac-pros-5-147x220.jpg 147w, https:\/\/d7fcfvvxwoz9e.cloudfront.net\/dom43635\/wp-content\/uploads\/2006\/10\/tips-dealing-hvac-pros-5-40x60.jpg 40w\" data-lazy-sizes=\"(max-width: 200px) 100vw, 200px\" data-lazy-src=\"https:\/\/d7fcfvvxwoz9e.cloudfront.net\/dom43635\/wp-content\/uploads\/2006\/10\/tips-dealing-hvac-pros-5.jpg\"\/><noscript><img loading=\"lazy\" loading=\"lazy\" decoding=\"async\" width=\"200\" height=\"300\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/d7fcfvvxwoz9e.cloudfront.net\/dom43635\/wp-content\/uploads\/2006\/10\/tips-dealing-hvac-pros-5.jpg\" alt=\"HVAC unit\" class=\"wp-image-38438 lazyload\" style=\"width:249px;height:auto\" data-sizes=\"auto\" data-srcset=\"https:\/\/d7fcfvvxwoz9e.cloudfront.net\/dom43635\/wp-content\/uploads\/2006\/10\/tips-dealing-hvac-pros-5.jpg 200w, https:\/\/d7fcfvvxwoz9e.cloudfront.net\/dom43635\/wp-content\/uploads\/2006\/10\/tips-dealing-hvac-pros-5-147x220.jpg 147w, https:\/\/d7fcfvvxwoz9e.cloudfront.net\/dom43635\/wp-content\/uploads\/2006\/10\/tips-dealing-hvac-pros-5-40x60.jpg 40w\" sizes=\"auto, (max-width: 200px) 100vw, 200px\"\/><\/noscript><figcaption class=\"wp-element-caption\">The Air Handler Houses the Blower <\/figcaption><\/figure>\n<h2 class=\"wp-block-heading\">Types of Air Conditioner Blowers and How They Work<\/h2>\n<p>As I mentioned earlier, there are four main types of AC blowers \u2013 propeller fans, centrifugal fans, vane-axial fans, and tube-axial fans. Each type has unique characteristics and is suited for different types of AC units. Let\u2019s take a closer look at each type:<\/p>\n<h3 class=\"wp-block-heading\">Propeller Fan<\/h3>\n<p>You will probably encounter this type of fan in your daily life. It has a disk-type wheel mounted on a plate with a direct drive or belt-driven motor connected to it. When it is operating, it is noisy and is only used in applications where noise is not a factor. Look out for its usage as an exhaust and condenser fan.\u00a0<\/p>\n<p>It is used in applications where low-pressure differentials but large volumes of air movement are required. It is also known as an axial fan, as the air flows parallel to the axis of rotation of the fan.<\/p>\n<h3 class=\"wp-block-heading\">Centrifugal Fan<\/h3>\n<p>This type of fan is also known as a radial fan, as the air flows perpendicularly to the axis of rotation of the fan. Here are the major types of centrifugal fans: <\/p>\n<h4 class=\"wp-block-heading\">Forward Curved<\/h4>\n<p>One category of the wheel design is the forward curved centrifugal fan, which is also known as a squirrel cage blower. It has a forward curved blade with a cut-off design that prevents the air from going around the fan housing.<\/p>\n<p>It is quieter than the propeller type and provides high differential pressure between the inlet and outlet. This type of fan is suitable to be used to move air in the ducts around the building.<\/p>\n<h4 class=\"wp-block-heading\">Backward Inclined<\/h4>\n<p><b>Backward inclined with a <\/b>flat and single-thickness metal blade is another design that is used for smaller unit applications.<\/p>\n<h4 class=\"wp-block-heading\">Backward Curved<\/h4>\n<p><strong>Backward curved<\/strong>\u00a0with curve and single thickness metal fan blade is used in medium and high static pressure applications.<\/p>\n<h4 class=\"wp-block-heading\">Airfoil<\/h4>\n<p><strong>Airfoil<\/strong>\u00a0with a curve and double-thickness metal blade design is sometimes used. Its aerodynamic design makes it a popular design in applications where efficiency and quietness are required.<\/p>\n<h3 class=\"wp-block-heading\">Vane-axial Fan<\/h3>\n<p>This design has a disk-type wheel, which is housed in a cylinder tube. Air guide vanes are built into the tube to guide the flow of the cold air properly.<\/p>\n<h3 class=\"wp-block-heading\">Tube-axial Fan<\/h3>\n<p>This design has a propeller inside the cylinder with a belt-driven or direct-drive motor connected to it.<\/p>\n<h3 class=\"wp-block-heading\">Permanent Split Capacitor (PSC) Motor<\/h3>\n<p>In air conditioner blowers where the motor capacity is 5 tons or below, a direct drive permanent split capacitor motor has been used due to its better reliability and fewer parts to maintain compared to the belt-driven type. The belt-driven type has pulleys and fan shaft bearings that will wear off over time; hence, regular servicing is required.<\/p>\n<p>The PSC motor has a RUN winding, START winding, and a RUN capacitor, which is active when the motor is running. It is quiet and starts slowly before running at a steady state speed. The fan turns at the same speed as the motor, and a multi-speed fan can be achieved.<\/p>\n<p>You can see many wires coming out of the windings of the motors for speed selection. Four fan speeds with speeds ranging from 800 rpm to 1500 rpm are commonly available. By using relays to select the windings to be connected to the AC power supply, the speed of the air conditioner blower can be controlled.<\/p>\n<p>Related: <a href=\"https:\/\/todayshomeowner.com\/hvac\/guides\/what-is-a-fan-speed-controller\/\">What is a Fan Speed Controller?<\/a><\/p>\n<h2 class=\"wp-block-heading\">Troubleshooting an AC Blower That\u2019s Not Working<\/h2>\n<p>If your cooling system\u2019s blower isn\u2019t working, there are several potential causes. Here are some common issues and how to address them:<\/p>\n<ul>\n<li>Check the thermostat settings to ensure the fan is set to \u201con\u201d or \u201cauto.\u201d<\/li>\n<li>Inspect the air filter and replace it if it\u2019s dirty or clogged.<\/li>\n<li>Verify that the blower motor is receiving power. If not, check the circuit breaker or fuses.<\/li>\n<li>Listen for unusual noises from the blower fan, which may indicate a need for repair or replacement.<\/li>\n<li>If the issue persists, contact a professional HVAC technician for further diagnosis and repair.<\/li>\n<\/ul>\n<h2 class=\"wp-block-heading\">Final Thoughts<\/h2>\n<p>Regular maintenance, such as replacing air filters and scheduling annual service with a professional HVAC technician, can help prolong the life of your AC blower and ensure the best performance. If you experience any problems with your blower, don\u2019t hesitate to contact a qualified HVAC technician for assistance.<\/p>\n<div id=\"hm-faq-block_ab82b2c959c8b3011ef0ac3705b90eac 1\" class=\"hm-faq hm-faq--two-column\">\n<h2 class=\"hm-faq__title \" data-toc-text=\"Frequently Asked Questions\">Frequently Asked Questions<\/h2>\n<div class=\"hm-faq__item\">\n<h3 class=\"faqQuestion accordion mb-0\">\n                        What is the difference between a single-speed and variable-speed AC blower?                    <\/h3>\n<div class=\"faqAnswer panel\">\n<p>Single-speed blowers operate at a constant speed, while variable-speed blowers can adjust their speed based on cooling demands, providing more efficient and even cooling from your HVAC system.<\/p>\n<\/p><\/div>\n<\/p><\/div>\n<hr class=\"my-2\"\/>\n<div class=\"hm-faq__item\">\n<h3 class=\"faqQuestion accordion mb-0\">\n                        Can a dirty air filter affect the AC blower&#8217;s performance?                    <\/h3>\n<div class=\"faqAnswer panel\">\n<p>Yes, a dirty air filter restricts airflow, causing the blower to work harder and potentially leading to overheating and premature wear.<\/p>\n<\/p><\/div>\n<\/p><\/div>\n<hr class=\"my-2\"\/>\n<div class=\"hm-faq__item\">\n<h3 class=\"faqQuestion accordion mb-0\">\n                        How often should I have my AC blower serviced?                    <\/h3>\n<div class=\"faqAnswer panel\">\n<p>I recommend having your AC system, including the blower, serviced annually by a professional HVAC technician to ensure optimal performance and longevity.<\/p>\n<\/p><\/div>\n<\/p><\/div>\n<hr class=\"my-2\"\/>\n                    <\/div>\n<div class=\"gb-container gb-container-582f500d\">\n<p>Article Update Log<\/p>\n<div class=\"gb-grid-wrapper gb-grid-wrapper-4ccf9a66\">\n<div class=\"gb-grid-column gb-grid-column-a62d97de\">\n<div class=\"gb-container gb-container-a62d97de\">\n<div class=\"gb-headline gb-headline-1a89dba4 gb-headline-text provider-box\">Reviewed for accuracy, cost data, industry best practices, and expert advice by <a href=\"https:\/\/todayshomeowner.com\/author\/jjachura\/\">Jonathon Jachura<\/a>.<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div><\/div>\n\n","protected":false},"excerpt":{"rendered":"<p>An air conditioner\u2019s blower or fan is one of the key components that is needed as part of the air conditioning system. The AC blower, also known as the fan, is responsible for circulating cooled air throughout your home. There are basically four types of fans that are commonly used in HVAC equipment. They are [&hellip;]<\/p>\n","protected":false},"author":222,"featured_media":11486,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[124],"tags":[],"class_list":["post-11485","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-home-improvement"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>How Air Conditioner Blowers Work | Unlock Informed Choices with Us<\/title>\n<meta name=\"description\" content=\"Air conditioner blower is also called air conditioner fan. 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The AC blower, also known as the fan, is responsible for circulating cooled air throughout your home. There are basically four types of fans that are commonly used in HVAC equipment. 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