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\u0643\u0644\u0645\u0629 &quot;4-Pipe Mean&quot;\u061f<\/strong><br><br>\u064a\u0633\u062a\u062e\u062f\u0645 \u0646\u0638\u0627\u0645 \u0645\u0631\u0648\u062d\u0629 \u0645\u0644\u0641\u064a\u0629 \u0631\u0628\u0627\u0639\u064a \u0627\u0644\u0623\u0646\u0627\u0628\u064a\u0628 \u0623\u0631\u0628\u0639\u0629 \u0623\u0646\u0627\u0628\u064a\u0628 \u0645\u064a\u0627\u0647:<br><br>\u0623\u0646\u0628\u0648\u0628\u0627\u0646 \u0644\u0644\u0645\u064a\u0627\u0647 \u0627\u0644\u0645\u0628\u0631\u062f\u0629: \u0623\u0646\u0628\u0648\u0628 \u0625\u0645\u062f\u0627\u062f \u0627\u0644\u0645\u064a\u0627\u0647 \u0627\u0644\u0645\u0628\u0631\u062f\u0629 \u0648\u0623\u0646\u0628\u0648\u0628 \u0639\u0648\u062f\u0629 \u0627\u0644\u0645\u064a\u0627\u0647 \u0627\u0644\u0645\u0628\u0631\u062f\u0629.<br>\u0623\u0646\u0628\u0648\u0628\u0627\u0646 \u0644\u0644\u0645\u0627\u0621 \u0627\u0644\u0633\u0627\u062e\u0646: \u0623\u0646\u0628\u0648\u0628 \u0644\u062a\u0632\u0648\u064a\u062f \u0627\u0644\u0645\u0627\u0621 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\u0648\u0645\u0633\u0627\u062d\u0629 \u062a\u0631\u0643\u064a\u0628 \u0623\u0643\u0628\u0631\u060c \u0648\u062a\u0635\u0645\u064a\u0645 \u062a\u062d\u0643\u0645 \u0623\u0643\u062b\u0631 \u062a\u0637\u0648\u0631\u0627\u064b.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u0648\u062d\u062f\u0627\u062a \u0645\u0644\u0641\u0627\u062a \u0627\u0644\u0645\u0631\u0648\u062d\u0629 \u0630\u0627\u062a \u0627\u0644\u0623\u0646\u0628\u0648\u0628\u064a\u0646 \u0645\u0642\u0627\u0628\u0644 \u0648\u062d\u062f\u0627\u062a \u0645\u0644\u0641\u0627\u062a \u0627\u0644\u0645\u0631\u0648\u062d\u0629 \u0630\u0627\u062a \u0627\u0644\u0623\u0631\u0628\u0639\u0629 \u0623\u0646\u0627\u0628\u064a\u0628: \u0627\u0644\u0627\u062e\u062a\u0644\u0627\u0641\u0627\u062a \u0627\u0644\u0631\u0626\u064a\u0633\u064a\u0629<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0625\u0646 \u0627\u0644\u0627\u062e\u062a\u0644\u0627\u0641 \u0627\u0644\u0623\u0643\u0628\u0631 \u0644\u0627 \u064a\u0643\u0645\u0646 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\u0627\u0644\u062a\u062f\u0641\u0626\u0629.<br>\u064a\u062a\u0645\u064a\u0632 \u0646\u0638\u0627\u0645 \u0627\u0644\u0623\u0646\u0627\u0628\u064a\u0628 \u0627\u0644\u0623\u0631\u0628\u0639\u0629 \u0628\u0645\u0631\u0648\u0646\u0629 \u0623\u0643\u0628\u0631. \u0641\u0647\u0648 \u064a\u0641\u0635\u0644 \u0627\u0644\u0645\u0627\u0621 \u0627\u0644\u0645\u0628\u0631\u062f \u0639\u0646 \u0627\u0644\u0645\u0627\u0621 \u0627\u0644\u0633\u0627\u062e\u0646\u060c \u0645\u0645\u0627 \u064a\u0633\u0645\u062d \u0628\u062a\u0628\u0631\u064a\u062f \u0648\u062a\u062f\u0641\u0626\u0629 \u0645\u0646\u0627\u0637\u0642 \u0645\u062e\u062a\u0644\u0641\u0629 \u0645\u0646 \u0627\u0644\u0645\u0628\u0646\u0649 \u0641\u064a \u0646\u0641\u0633 \u0627\u0644\u0648\u0642\u062a.<br>\u0628\u0627\u0644\u0646\u0633\u0628\u0629 \u0644\u0644\u0645\u0634\u0627\u0631\u064a\u0639 \u0630\u0627\u062a \u0627\u0644\u0645\u064a\u0632\u0627\u0646\u064a\u0627\u062a \u0627\u0644\u0645\u062d\u062f\u0648\u062f\u0629 \u0648\u0627\u0644\u062a\u0634\u063a\u064a\u0644 \u0627\u0644\u0645\u0648\u0633\u0645\u064a \u0627\u0644\u0623\u0643\u062b\u0631 \u0642\u0627\u0628\u0644\u064a\u0629 \u0644\u0644\u062a\u0646\u0628\u0624\u060c \u0642\u062f \u064a\u0643\u0648\u0646 \u0646\u0638\u0627\u0645 \u0627\u0644\u0623\u0646\u0627\u0628\u064a\u0628 \u0627\u0644\u0645\u0632\u062f\u0648\u062c\u0629 \u0643\u0627\u0641\u064a\u0627\u064b.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0628\u0627\u0644\u0646\u0633\u0628\u0629 \u0644\u0644\u0645\u0628\u0627\u0646\u064a \u0627\u0644\u062a\u064a \u062a\u062a\u0637\u0644\u0628 \u062a\u062d\u0643\u0645\u064b\u0627 \u0623\u0641\u0636\u0644 \u0641\u064a \u0627\u0644\u0645\u0646\u0627\u0637\u0642\u060c \u0623\u0648 \u0631\u0627\u062d\u0629 \u0623\u0639\u0644\u0649\u060c \u0623\u0648 \u062a\u0628\u0631\u064a\u062f\u064b\u0627 \u0648\u062a\u062f\u0641\u0626\u0629 \u0645\u062a\u0632\u0627\u0645\u0646\u064a\u0646\u060c \u063a\u0627\u0644\u0628\u064b\u0627 \u0645\u0627 \u064a\u0643\u0648\u0646 \u0646\u0638\u0627\u0645 \u0627\u0644\u0623\u0646\u0627\u0628\u064a\u0628 \u0627\u0644\u0623\u0631\u0628\u0639\u0629 \u0647\u0648 \u0627\u0644\u062e\u064a\u0627\u0631 \u0627\u0644\u0623\u0641\u0636\u0644.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"863\" height=\"476\" src=\"https:\/\/derkhvac.com\/wp-content\/uploads\/2026\/06\/f789a90a378f428d2c3ec8fb01b6486401273af5.webp\" alt=\"\u0645\u062e\u0637\u0637 \u0645\u0642\u0627\u0631\u0646\u0629 \u062a\u062e\u0637\u064a\u0637\u064a \u0644\u062a\u0643\u0648\u064a\u0646\u0627\u062a \u0646\u0638\u0627\u0645 \u0627\u0644\u062a\u0643\u064a\u064a\u0641 \u0648\u0627\u0644\u062a\u0647\u0648\u064a\u0629 \u0628\u0648\u062d\u062f\u0629 \u0645\u0644\u0641 \u0645\u0631\u0648\u062d\u0629 \u062b\u0646\u0627\u0626\u064a\u0629 \u0627\u0644\u0623\u0646\u0627\u0628\u064a\u0628 \u0645\u0642\u0627\u0628\u0644 \u0648\u062d\u062f\u0629 \u0645\u0644\u0641 \u0645\u0631\u0648\u062d\u0629 \u0631\u0628\u0627\u0639\u064a\u0629 \u0627\u0644\u0623\u0646\u0627\u0628\u064a\u0628\" class=\"wp-image-1712\" srcset=\"https:\/\/derkhvac.com\/wp-content\/uploads\/2026\/06\/f789a90a378f428d2c3ec8fb01b6486401273af5.webp 863w, https:\/\/derkhvac.com\/wp-content\/uploads\/2026\/06\/f789a90a378f428d2c3ec8fb01b6486401273af5-300x165.webp 300w, https:\/\/derkhvac.com\/wp-content\/uploads\/2026\/06\/f789a90a378f428d2c3ec8fb01b6486401273af5-768x424.webp 768w, https:\/\/derkhvac.com\/wp-content\/uploads\/2026\/06\/f789a90a378f428d2c3ec8fb01b6486401273af5-600x331.webp 600w\" sizes=\"auto, (max-width: 863px) 100vw, 863px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u0623\u064a\u0646 \u062a\u064f\u0633\u062a\u062e\u062f\u0645 \u0623\u0646\u0638\u0645\u0629 \u0648\u062d\u062f\u0627\u062a \u0627\u0644\u062a\u0643\u064a\u064a\u0641 \u0630\u0627\u062a \u0627\u0644\u0623\u0646\u0628\u0648\u0628\u064a\u0646 \u0628\u0634\u0643\u0644 \u0634\u0627\u0626\u0639\u061f<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u062a\u064f\u0633\u062a\u062e\u062f\u0645 \u0623\u0646\u0638\u0645\u0629 \u0645\u0644\u0641\u0627\u062a \u0627\u0644\u0645\u0631\u0648\u062d\u0629 \u0630\u0627\u062a \u0627\u0644\u0623\u0646\u0628\u0648\u0628\u064a\u0646 \u063a\u0627\u0644\u0628\u064b\u0627 \u0641\u064a \u0627\u0644\u0645\u0628\u0627\u0646\u064a \u0627\u0644\u062a\u064a \u062a\u0643\u0648\u0646 \u0641\u064a\u0647\u0627 \u0627\u062d\u062a\u064a\u0627\u062c\u0627\u062a \u0627\u0644\u062a\u062f\u0641\u0626\u0629 \u0648\u0627\u0644\u062a\u0628\u0631\u064a\u062f \u0645\u0648\u0633\u0645\u064a\u0629 \u0648\u062b\u0627\u0628\u062a\u0629 \u0628\u0634\u0643\u0644 \u0623\u0643\u0628\u0631.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u064a\u0645\u0643\u0646 \u0623\u0646 \u062a\u0643\u0648\u0646 \u0647\u0630\u0647 \u0627\u0644\u0645\u0646\u062a\u062c\u0627\u062a \u0645\u0646\u0627\u0633\u0628\u0629 \u0644\u0628\u0639\u0636 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\u0623\u0646\u0648\u0627\u0639 \u0627\u0644\u0645\u0628\u0627\u0646\u064a \u0627\u0644\u0645\u062e\u062a\u0644\u0641\u0629\" class=\"wp-image-1711\" srcset=\"https:\/\/derkhvac.com\/wp-content\/uploads\/2026\/06\/de9c22fc3cb8fc6b7626f9c802c1a3bd426836fd.webp 864w, https:\/\/derkhvac.com\/wp-content\/uploads\/2026\/06\/de9c22fc3cb8fc6b7626f9c802c1a3bd426836fd-300x165.webp 300w, https:\/\/derkhvac.com\/wp-content\/uploads\/2026\/06\/de9c22fc3cb8fc6b7626f9c802c1a3bd426836fd-768x422.webp 768w, https:\/\/derkhvac.com\/wp-content\/uploads\/2026\/06\/de9c22fc3cb8fc6b7626f9c802c1a3bd426836fd-600x330.webp 600w\" sizes=\"auto, (max-width: 864px) 100vw, 864px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u0623\u064a\u0646 \u062a\u064f\u0633\u062a\u062e\u062f\u0645 \u0623\u0646\u0638\u0645\u0629 \u0648\u062d\u062f\u0627\u062a \u0627\u0644\u062a\u0643\u064a\u064a\u0641 \u0630\u0627\u062a \u0627\u0644\u0623\u0646\u0627\u0628\u064a\u0628 \u0627\u0644\u0623\u0631\u0628\u0639\u0629 \u0628\u0634\u0643\u0644 \u0634\u0627\u0626\u0639\u061f<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u062a\u064f\u0633\u062a\u062e\u062f\u0645 \u0623\u0646\u0638\u0645\u0629 \u0645\u0644\u0641\u0627\u062a \u0627\u0644\u0645\u0631\u0648\u062d\u0629 \u0630\u0627\u062a \u0627\u0644\u0623\u0646\u0627\u0628\u064a\u0628 \u0627\u0644\u0623\u0631\u0628\u0639\u0629 \u063a\u0627\u0644\u0628\u064b\u0627 \u0641\u064a \u0627\u0644\u0645\u0634\u0627\u0631\u064a\u0639 \u0627\u0644\u062a\u064a \u062a\u0643\u0648\u0646 \u0641\u064a\u0647\u0627 \u0645\u0631\u0648\u0646\u0629 \u0627\u0644\u0631\u0627\u062d\u0629 \u0623\u0643\u062b\u0631 \u0623\u0647\u0645\u064a\u0629.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0648\u0647\u064a \u0634\u0627\u0626\u0639\u0629 \u0641\u064a \u0627\u0644\u0641\u0646\u0627\u062f\u0642 \u0648\u0627\u0644\u0634\u0642\u0642 \u0627\u0644\u0641\u0627\u062e\u0631\u0629 \u0648\u0623\u0628\u0631\u0627\u062c \u0627\u0644\u0645\u0643\u0627\u062a\u0628 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class=\"wp-block-paragraph\"><strong>\u0647\u0644 \u0648\u062d\u062f\u0629 \u0627\u0644\u0645\u0631\u0648\u062d\u0629 \u0648\u0627\u0644\u0645\u0644\u0641 \u0647\u064a \u0645\u0643\u064a\u0641 \u0647\u0648\u0627\u0621\u061f<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0648\u062d\u062f\u0629 \u0645\u0644\u0641 \u0627\u0644\u0645\u0631\u0648\u062d\u0629 \u0647\u064a \u062c\u0632\u0621 \u0645\u0646 \u0646\u0638\u0627\u0645 \u062a\u0643\u064a\u064a\u0641 \u0627\u0644\u0647\u0648\u0627\u0621\u060c \u0644\u0643\u0646\u0647\u0627 \u0644\u064a\u0633\u062a \u0645\u062b\u0644 \u0645\u0643\u064a\u0641 \u0627\u0644\u0647\u0648\u0627\u0621 \u0627\u0644\u0645\u0633\u062a\u0642\u0644.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0644\u0627 \u064a\u0633\u062a\u062e\u062f\u0645 \u0647\u0630\u0627 \u0627\u0644\u0646\u0638\u0627\u0645 \u0639\u0627\u062f\u0629\u064b \u0645\u0643\u062b\u0641\u064b\u0627 \u062e\u0627\u0631\u062c\u064a\u064b\u0627 \u0643\u0645\u0627 \u0647\u0648 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\u064a\u062a\u0637\u0644\u0628 \u062a\u0635\u0645\u064a\u0645 \u0646\u0638\u0627\u0645 \u0623\u0643\u062b\u0631 \u062a\u0639\u0642\u064a\u062f\u064b\u0627.<br>\u0628\u0627\u0644\u0646\u0633\u0628\u0629 \u0644\u0644\u0641\u0646\u0627\u062f\u0642 \u0648\u0627\u0644\u0645\u0643\u0627\u062a\u0628 \u0648\u0627\u0644\u0634\u0642\u0642 \u0648\u0627\u0644\u0645\u062f\u0627\u0631\u0633 \u0648\u0627\u0644\u0645\u0628\u0627\u0646\u064a \u0645\u062a\u0639\u062f\u062f\u0629 \u0627\u0644\u0627\u0633\u062a\u062e\u062f\u0627\u0645\u0627\u062a \u0648\u0627\u0644\u0645\u0634\u0627\u0631\u064a\u0639 \u0627\u0644\u062a\u062c\u0627\u0631\u064a\u0629 \u0627\u0644\u0623\u062e\u0631\u0649\u060c \u0641\u0625\u0646 \u0641\u0647\u0645 \u0627\u0644\u0641\u0631\u0642 \u0628\u064a\u0646 \u0623\u0646\u0638\u0645\u0629 \u0645\u0644\u0641\u0627\u062a \u0627\u0644\u0645\u0631\u0648\u062d\u0629 \u0630\u0627\u062a \u0627\u0644\u0623\u0646\u0628\u0648\u0628\u064a\u0646 \u0648\u0623\u0646\u0638\u0645\u0629 \u0645\u0644\u0641\u0627\u062a \u0627\u0644\u0645\u0631\u0648\u062d\u0629 \u0630\u0627\u062a \u0627\u0644\u0623\u0631\u0628\u0639\u0629 \u0623\u0646\u0627\u0628\u064a\u0628 \u064a\u0645\u0643\u0646 \u0623\u0646 \u064a\u0633\u0627\u0639\u062f \u0623\u0635\u062d\u0627\u0628 \u0627\u0644\u0645\u0634\u0627\u0631\u064a\u0639 \u0648\u0627\u0644\u0627\u0633\u062a\u0634\u0627\u0631\u064a\u064a\u0646 \u0648\u0627\u0644\u0645\u0642\u0627\u0648\u0644\u064a\u0646 \u0639\u0644\u0649 \u0627\u062e\u062a\u064a\u0627\u0631 \u0627\u0644\u062d\u0644 \u0627\u0644\u0645\u0646\u0627\u0633\u0628 \u0644\u0644\u0631\u0627\u062d\u0629 \u0648\u0627\u0644\u0643\u0641\u0627\u0621\u0629 \u0648\u0627\u0644\u062a\u0634\u063a\u064a\u0644 \u0639\u0644\u0649 \u0627\u0644\u0645\u062f\u0649 \u0627\u0644\u0637\u0648\u064a\u0644.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u0645\u0642\u062a\u0637\u0641 \u0645\u0646 <a href=\"https:\/\/link.wtturl.cn\/?target=https%3A%2F%2Fwww.ejarn.com&amp;scene=im&amp;aid=582478&amp;lang=zh\" target=\"_blank\" rel=\"noreferrer noopener\">www.ejarn.com<\/a>.<\/h3>","protected":false},"excerpt":{"rendered":"<p>When people first hear the term fan coil unit, it can sound a little confusing. Is it an air conditioner? Is it a heater? Is it related to hot water? A fan coil unit, often called an FCU, is part of an HVAC system. In commercial hydronic HVAC systems, it is an indoor terminal unit [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":1779,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_seopress_titles_title":"","_seopress_titles_desc":"2-pipe vs 4-pipe fan coil units: what's the difference? Compare costs, cooling and heating flexibility, and choose the right FCU for your project.","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_robots_imageindex":"","_seopress_robots_snippet":"","_seopress_robots_primary_cat":"","_seopress_robots_breadcrumbs":"","_seopress_robots_freeze_modified_date":"","_seopress_robots_custom_modified_date":"","_seopress_robots_canonical":"","_seopress_social_fb_title":"","_seopress_social_fb_desc":"","_seopress_social_fb_img":"","_seopress_social_fb_img_attachment_id":0,"_seopress_social_fb_img_width":0,"_seopress_social_fb_img_height":0,"_seopress_social_twitter_title":"","_seopress_social_twitter_desc":"","_seopress_social_twitter_img":"","_seopress_social_twitter_img_attachment_id":0,"_seopress_social_twitter_img_width":0,"_seopress_social_twitter_img_height":0,"_seopress_redirections_value":"","_seopress_redirections_enabled":"","_seopress_redirections_enabled_regex":"","_seopress_redirections_logged_status":"","_seopress_redirections_param":"","_seopress_redirections_type":0,"_seopress_analysis_target_kw":"","footnotes":""},"categories":[50],"tags":[],"class_list":["post-1701","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"acf":[],"_links":{"self":[{"href":"https:\/\/derkhvac.com\/ar\/wp-json\/wp\/v2\/posts\/1701","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/derkhvac.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/derkhvac.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/derkhvac.com\/ar\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/derkhvac.com\/ar\/wp-json\/wp\/v2\/comments?post=1701"}],"version-history":[{"count":4,"href":"https:\/\/derkhvac.com\/ar\/wp-json\/wp\/v2\/posts\/1701\/revisions"}],"predecessor-version":[{"id":2895,"href":"https:\/\/derkhvac.com\/ar\/wp-json\/wp\/v2\/posts\/1701\/revisions\/2895"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/derkhvac.com\/ar\/wp-json\/wp\/v2\/media\/1779"}],"wp:attachment":[{"href":"https:\/\/derkhvac.com\/ar\/wp-json\/wp\/v2\/media?parent=1701"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/derkhvac.com\/ar\/wp-json\/wp\/v2\/categories?post=1701"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/derkhvac.com\/ar\/wp-json\/wp\/v2\/tags?post=1701"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}