{"id":15757,"date":"2021-01-28T11:26:36","date_gmt":"2021-01-28T17:26:36","guid":{"rendered":"https:\/\/www.kele.com\/content\/?p=15757"},"modified":"2025-01-31T10:22:39","modified_gmt":"2025-01-31T16:22:39","slug":"understanding-hvac-sensors","status":"publish","type":"post","link":"https:\/\/www.kele.com\/content\/blog\/understanding-hvac-sensors","title":{"rendered":"Understanding HVAC Sensors"},"content":{"rendered":"<p>[et_pb_section fb_built=&#8221;1&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_row _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<h3>Contributed by Belimo<\/h3>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_image src=&#8221;https:\/\/assets.kele.com\/content\/wp-content\/uploads\/2021\/01\/Belimo-Blog-Hero.jpg&#8221; title_text=&#8221;Belimo-Blog-Hero&#8221; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_image][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=&#8221;2_5,3_5&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;2_5&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<p>HVAC systems&#8217; operation is a critical requirement for reopening and maintaining safe indoor air quality (IAQ). An HVAC system has so many vital components \u2013 one being sensors. Sensors verify operation and accuracy to improve system performance and ensure occupant health, safety, comfort, and productivity.<\/p>\n<p>Sensors that are faulty or out of calibration can affect the ability to control temperature, humidity, air quality, and building pressure. With the new ASHRAE Epidemic Task Force guidelines, indoor air quality has become more critical.<\/p>\n<p>[\/et_pb_text][\/et_pb_column][et_pb_column type=&#8221;3_5&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<p><iframe loading=\"lazy\" src=\"https:\/\/www.youtube.com\/embed\/oL8VthM0wIY\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; hover_enabled=&#8221;0&#8243; global_colors_info=&#8221;{}&#8221; sticky_enabled=&#8221;0&#8243;]<\/p>\n<p>Facility managers need to ensure sensors are running efficiently and smoothly to improve and maintain IAQ to slow the transmission of viruses through the HVAC system.<\/p>\n<p>Some of the most critical sensors used in HVAC systems are:<\/p>\n<p><strong>Pressure Sensors<\/strong><\/p>\n<p>Pressure sensors monitor pressure levels within specific zones, and measure the pressure drop across filters and other devices, effectively alerting the system when maintenance and filter replacement is required. Accurate pressure measurement is vital for optimal HVAC system performance. Pressure sensors can measure extremely high and low pressures in air and water applications, offering precise measurement of pressure, differential pressure, and velocity for reliable monitoring. Applications include VAV (variable air volume) control, static duct pressure, clogged HVAC filter detection, HVAC transmitters, and IAQ monitoring systems.\u00a0Pressure sensors\u00a0from Belimo offer eight field-selectable pressure ranges in one unit. They have excellent zero-point stability and high accuracy with an auto-zero function that manually calibrates itself every ten minutes.<\/p>\n<p><strong>Temperature Sensors\u00a0<\/strong><\/p>\n<p>Temperature sensors measure air and water temperature and adjust the heating and air conditioning to raise or lower the air temperature based on the programmed setpoint, preventing wasted energy. You can also use the sensors&#8217; data to learn about a room&#8217;s airflow and air quality. Using temperature sensors prevents the system from running harder than the building requires. Accurate and reliable temperature readings are essential for optimal building comfort and energy efficiency. Belimo\u2019s outdoor air,\u00a0duct,\u00a0pipe,\u00a0and\u00a0room\u00a0temperature sensors are designed for easy installation and are compatible with all BAS.<\/p>\n<p><strong>Humidity Sensors<\/strong><\/p>\n<p>Controlling humidity in buildings is critical for occupant comfort, and safety, and protecting building infrastructure, production processes, stored goods, and museum artwork. Combined temperature and humidity sensors provide a flexible and cost-effective solution. Humidity control typically adds clean steam to the airstream to raise space humidity. If using resistive-type humidity and dew point sensors, consider changing to capacitive technology (CMOS) sensors, which are more accurate and not susceptible to drift. The updated <a href=\"https:\/\/www.ashrae.org\/technical-resources\/bookstore\/standards-62-1-62-2\">ASHRAE 62.1 standard<\/a> also requires systems to limit the indoor humidity to a maximum dew point of 60\u00b0F (15\u00b0C) during both occupied and unoccupied hours whenever the outdoor air dew point is above 60\u00b0F (15\u00b0C). Belimo\u2019s range of durable\u00a0duct,\u00a0outdoor air, and\u00a0room sensors\u00a0is manufactured using the highest quality materials to ensure superior reliability, accuracy, and repeatability. Belimo\u2019s combined temperature and humidity sensors include field-selectable ranges and outputs, including relative humidity, absolute humidity, enthalpy, and dew point, helping buildings meet\u00a0<a href=\"https:\/\/www.ashrae.org\/technical-resources\/bookstore\/standards-62-1-62-2\">ASHRAE 62.1 standard<\/a>. Combined sensors provide a flexible and cost-effective solution.<\/p>\n<p><strong>Indoor Air Quality Sensors<\/strong><\/p>\n<p>Sensors that measure IAQ are becoming increasingly important to slow the transmission of viruses via the HVAC system. With the new ASHRAE guidance codes, HVAC systems&#8217; operation is critical for maintaining adequate and safe IAQ in reopening buildings. Strategies such as increased ventilation, improved filtration, and air cleaning aim to enhance occupant safety, comfort, and productivity. Air quality sensors provide occupant comfort and safety while helping to maximize efficiency. Belimo offers a wide range of combined\u00a0multi-sensors\u00a0for CO2, humidity, temperature, and VOCs designed to ensure air quality and maximize energy savings over the building&#8217;s life cycle.<\/p>\n<p><strong>Occupancy Sensors<\/strong><\/p>\n<p>Indoor occupancy sensors measure motion and light in spaces to optimize energy efficiency. Seamless integration to the building management system (BMS) allows energy savings by controlling the space temperature to an unoccupied setpoint. Occupancy sensors can detect ambient brightness levels, enabling the BMS to control powered light levels in the space. These sensors are typically in high-traffic or isolated areas, such as the building entrance, hallways, lavatories, floor, office rooms, etc. Belimo\u2019s occupancy sensors\u00a0are designed to be discreet. The ceiling-mounted 360\u00b0 passive infrared occupancy sensor with relay output seamlessly integrates to the BMS, allowing energy savings by controlling the space temperature to the unoccupied setpoint.<\/p>\n<p><strong>Room Sensors<\/strong><\/p>\n<p>Room Sensors monitor motion and share data on occupancy activity patterns and environmental changes in temperature, humidity, and CO2. This data is invaluable in running an environmentally friendly office, ensuring occupant comfort and safety with increased production. Belimo room sensors in a surface-mounted, streamlined design measure temperature, humidity, and CO2, providing high accuracy with a fast response rate. Integrated with Near Field Communication (NFC), room sensors allow easy data access, device configuration, commissioning, and troubleshooting when using the Belimo Assistant App installed on a smartphone.<\/p>\n<p>Kele offers a <a href=\"https:\/\/www.kele.com\/search?keywords=belimo%20sensors\">wide range of Belimo sensors<\/a> you need to get your next project done. Shop now or find out more on how Kele can help you with all of your sensor needs. Call or Chat Live with us today!<\/p>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Contributed by Belimo HVAC systems&#8217; operation&#8230;<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[258],"tags":[],"class_list":["post-15757","post","type-post","status-publish","format-standard","hentry","category-sensors"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\r\n<title>Understanding HVAC Sensors - kele.com<\/title>\r\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\r\n<link rel=\"canonical\" href=\"https:\/\/www.kele.com\/content\/blog\/understanding-hvac-sensors\" \/>\r\n<meta property=\"og:locale\" content=\"en_US\" \/>\r\n<meta property=\"og:type\" content=\"article\" \/>\r\n<meta property=\"og:title\" content=\"Understanding HVAC Sensors - kele.com\" \/>\r\n<meta property=\"og:description\" content=\"Contributed by Belimo HVAC systems&#8217; operation...\" \/>\r\n<meta property=\"og:url\" content=\"https:\/\/www.kele.com\/content\/blog\/understanding-hvac-sensors\" \/>\r\n<meta property=\"og:site_name\" content=\"kele.com\" \/>\r\n<meta property=\"article:published_time\" content=\"2021-01-28T17:26:36+00:00\" \/>\r\n<meta property=\"article:modified_time\" content=\"2025-01-31T16:22:39+00:00\" \/>\r\n<meta name=\"author\" content=\"Kele Inc\" \/>\r\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\r\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Kele Inc\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minutes\" \/>\r\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.kele.com\\\/content\\\/blog\\\/understanding-hvac-sensors#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.kele.com\\\/content\\\/blog\\\/understanding-hvac-sensors\"},\"author\":{\"name\":\"Kele Inc\",\"@id\":\"https:\\\/\\\/www.kele.com\\\/content\\\/#\\\/schema\\\/person\\\/759cbd0e294ee37f0c4cd2630505e0cd\"},\"headline\":\"Understanding HVAC Sensors\",\"datePublished\":\"2021-01-28T17:26:36+00:00\",\"dateModified\":\"2025-01-31T16:22:39+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.kele.com\\\/content\\\/blog\\\/understanding-hvac-sensors\"},\"wordCount\":1078,\"commentCount\":0,\"articleSection\":[\"Sensors\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.kele.com\\\/content\\\/blog\\\/understanding-hvac-sensors#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.kele.com\\\/content\\\/blog\\\/understanding-hvac-sensors\",\"url\":\"https:\\\/\\\/www.kele.com\\\/content\\\/blog\\\/understanding-hvac-sensors\",\"name\":\"Understanding HVAC Sensors - kele.com\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.kele.com\\\/content\\\/#website\"},\"datePublished\":\"2021-01-28T17:26:36+00:00\",\"dateModified\":\"2025-01-31T16:22:39+00:00\",\"author\":{\"@id\":\"https:\\\/\\\/www.kele.com\\\/content\\\/#\\\/schema\\\/person\\\/759cbd0e294ee37f0c4cd2630505e0cd\"},\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.kele.com\\\/content\\\/blog\\\/understanding-hvac-sensors#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.kele.com\\\/content\\\/blog\\\/understanding-hvac-sensors\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.kele.com\\\/content\\\/blog\\\/understanding-hvac-sensors#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.kele.com\\\/content\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Understanding HVAC Sensors\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.kele.com\\\/content\\\/#website\",\"url\":\"https:\\\/\\\/www.kele.com\\\/content\\\/\",\"name\":\"kele.com\",\"description\":\"Kele is a single source supplier with a huge inventory for all your building automation requirements. 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