{"id":1283,"date":"2022-05-27T13:19:32","date_gmt":"2022-05-27T08:49:32","guid":{"rendered":"https:\/\/yektatadbirco.ir\/%da%86%db%8c%d9%84%d8%b1-%d8%af%d9%88%d8%b1-%d9%85%d8%aa%d8%ba%db%8c%d8%b1-%da%a9%d9%86%d8%aa%d8%b1%d9%84-%d8%a8%d8%a7-picv\/"},"modified":"2022-05-27T15:01:22","modified_gmt":"2022-05-27T10:31:22","slug":"variable-speed-chiller-picv-control","status":"publish","type":"post","link":"https:\/\/yektatadbirco.ir\/en\/variable-speed-chiller-picv-control\/","title":{"rendered":"VARIABLE SPEED CHILLER &#8211; PICV CONTROL"},"content":{"rendered":"<div class=\"wpb-content-wrapper\"><p>[vc_row][vc_column width=&#8221;7\/12&#8243;][vc_column_text woodmart_inline=&#8221;no&#8221; text_larger=&#8221;no&#8221;]<img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-1094 size-full\" src=\"https:\/\/yektatadbirco.ir\/wp-content\/uploads\/2022\/02\/Variable-Speed-Chiller-PICV-Control.jpg\" alt=\"\" width=\"1000\" height=\"722\" srcset=\"https:\/\/yektatadbirco.ir\/wp-content\/uploads\/2022\/02\/Variable-Speed-Chiller-PICV-Control.jpg 1000w, https:\/\/yektatadbirco.ir\/wp-content\/uploads\/2022\/02\/Variable-Speed-Chiller-PICV-Control-150x108.jpg 150w, https:\/\/yektatadbirco.ir\/wp-content\/uploads\/2022\/02\/Variable-Speed-Chiller-PICV-Control-600x433.jpg 600w, https:\/\/yektatadbirco.ir\/wp-content\/uploads\/2022\/02\/Variable-Speed-Chiller-PICV-Control-300x217.jpg 300w, https:\/\/yektatadbirco.ir\/wp-content\/uploads\/2022\/02\/Variable-Speed-Chiller-PICV-Control-768x554.jpg 768w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/>[\/vc_column_text][\/vc_column][vc_column width=&#8221;5\/12&#8243;][vc_column_text woodmart_inline=&#8221;no&#8221; text_larger=&#8221;no&#8221;]Variable Speed Chiller &#8211; Plant Room<\/p>\n<p>with PICV control<\/p>\n<p>Function<\/p>\n<p>The variable speed chillers are connected to the controller, which controls the flow through each chiller by the PICV.<\/p>\n<p>The controller measures the inlet and outlet temperatures to maximize Delta T and regulate the variable speed pump to maintain the required pump pressure.<\/p>\n<p>For optimal chiller efficiency, the use of multiple chillers at lower capacity or cascade control at part load shall be selected, depending on the chiller design and control philosophy.<\/p>\n<p>Benefits<\/p>\n<ul>\n<li>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0The PICV ensures balancing of the flow and eliminates the use of both static balancing valves and differential pressure control valves.<\/li>\n<li>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Simple installation as only the PICV is required with no need for additional pressure or flow balancing valves.<\/li>\n<li>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Low total pressure loss in the system due to simple design.<\/li>\n<li>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0The flow can be set directly on the PICV without the need of a manometer or a commissioning unit.<\/li>\n<li>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0The differential pressure only needs to be checked at the PICV to set the required flow.<\/li>\n<\/ul>\n<p>Considerations<\/p>\n<ul>\n<li>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0A metering station can be placed on main line if additional flow verification is required by the witnessing authority.<\/li>\n<li>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0A minimum bypass flow can be required by the chiller to secure instant cooling or circulation of chemicals in the system. This should be placed at the most appropriate place in the system.<\/li>\n<\/ul>\n<p>[\/vc_column_text][\/vc_column][\/vc_row]<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>[vc_row][vc_column width=&#8221;7\/12&#8243;][vc_column_text woodmart_inline=&#8221;no&#8221; text_larger=&#8221;no&#8221;][\/vc_column_text][\/vc_column][vc_column width=&#8221;5\/12&#8243;][vc_column_text woodmart_inline=&#8221;no&#8221; text_larger=&#8221;no&#8221;]Variable Speed Chiller &#8211; Plant Room with PICV control Function The variable speed chillers<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[81],"tags":[],"class_list":["post-1283","post","type-post","status-publish","format-standard","hentry","category-applications"],"_links":{"self":[{"href":"https:\/\/yektatadbirco.ir\/en\/wp-json\/wp\/v2\/posts\/1283","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/yektatadbirco.ir\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/yektatadbirco.ir\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/yektatadbirco.ir\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/yektatadbirco.ir\/en\/wp-json\/wp\/v2\/comments?post=1283"}],"version-history":[{"count":4,"href":"https:\/\/yektatadbirco.ir\/en\/wp-json\/wp\/v2\/posts\/1283\/revisions"}],"predecessor-version":[{"id":1352,"href":"https:\/\/yektatadbirco.ir\/en\/wp-json\/wp\/v2\/posts\/1283\/revisions\/1352"}],"wp:attachment":[{"href":"https:\/\/yektatadbirco.ir\/en\/wp-json\/wp\/v2\/media?parent=1283"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/yektatadbirco.ir\/en\/wp-json\/wp\/v2\/categories?post=1283"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/yektatadbirco.ir\/en\/wp-json\/wp\/v2\/tags?post=1283"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}