{"id":1784,"date":"2025-10-12T16:50:20","date_gmt":"2025-10-12T16:50:20","guid":{"rendered":"https:\/\/www.dioda.ro\/blog\/?p=1784"},"modified":"2025-10-13T08:13:03","modified_gmt":"2025-10-13T08:13:03","slug":"centrala-termica-baraie-de-zici-ca-e-motor-si-presiunea-fluctueaza","status":"publish","type":"post","link":"https:\/\/www.dioda.ro\/blog\/centrale-termice\/centrala-termica-baraie-de-zici-ca-e-motor-si-presiunea-fluctueaza\/","title":{"rendered":"Centrala termica \u201cbaraie\u201d (de zici ca e motor) si presiunea fluctueaza ?"},"content":{"rendered":"\n<p><span style=\"font-weight: 400;\">Asa cum apare in exemplul din video \u0219i urmatoarele simptome:<\/span><\/p>\n<p><span class=\"embed-youtube\" style=\"text-align:center; display: block;\"><iframe loading=\"lazy\" class=\"youtube-player\" width=\"1200\" height=\"675\" src=\"https:\/\/www.youtube.com\/embed\/BnNCcTSB-VI?version=3&#038;rel=1&#038;showsearch=0&#038;showinfo=1&#038;iv_load_policy=1&#038;fs=1&#038;hl=en-US&#038;autohide=2&#038;wmode=transparent\" allowfullscreen=\"true\" style=\"border:0;\" sandbox=\"allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox\"><\/iframe><\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Auzi \u201cmotoras\u201d intermitent = cel mai probabil pompa de circula\u021bie porne\u0219te\/opre\u0219te des sau caviteaz\u0103.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Manometrul oscileaz\u0103 \u00eentre ~1 \u0219i ~2 bar \u00een timp ce se aude pompa, apoi dup\u0103 oprire r\u0103m\u00e2ne pe ~1.5\u20132 bar.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Cauze probabile (ordonate de la cele mai comune):<\/span><\/p>\n<ol>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Aer \u00een instala\u021bie \/ microbule \u00een pomp\u0103 sau radiatoare<\/span>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">Provoac\u0103 oscila\u021bii de presiune \u0219i sunet de \u201cm\u00e2r\u00e2it\u201d\/v\u00e2j\u00e2it la pomp\u0103.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">Se manifest\u0103 mai ales dup\u0103 completare cu ap\u0103 sau dup\u0103 oprirea\/relansarea sezonului de \u00eenc\u0103lzire.<\/span><\/li>\n<\/ul>\n<\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Vas de expansiune dezumflat sau diafragm\u0103 sl\u0103bit\u0103<\/span>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">Dac\u0103 presiunea \u201csalt\u0103\u201d c\u00e2nd pompa se opre\u0219te \u0219i variaz\u0103 vizibil la mers\/stop, vasul poate s\u0103 nu mai absoarb\u0103 dilatarea corect.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">Semn clasic: diferen\u021be mari de presiune rece\/cald, cre\u0219tere spre 2\u20132.5 bar, uneori supapa de siguran\u021b\u0103 picur\u0103.<\/span><\/li>\n<\/ul>\n<\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Filtru de retur\/prefiltru colmatat sau robine\u021bi par\u021bial \u00eenchi\u0219i<\/span>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">Creeaz\u0103 pierderi de sarcin\u0103, pompa munce\u0219te \u0219i bate \u00een presiune, zgomot intermitent.<\/span><\/li>\n<\/ul>\n<\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Hidrator dispozitiv de Auto-umplere (dac\u0103 exist\u0103) care \u201cpescuie\u0219te\u201d intermitent<\/span>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">Poate introduce mici impulsuri de presiune \u0219i zgomote c\u00e2nd completeaz\u0103 ap\u0103. De regul\u0103 vezi cre\u0219teri lente de presiune \u00een timp.<\/span><\/li>\n<\/ul>\n<\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Debit insuficient sau aer \u00een schimb\u0103tor\/pl\u0103ci, bypass diferen\u021bial defect sau setat prea sus<\/span>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">Produce oscila\u021bii: pompa \u00eempinge contra unei rezisten\u021be variabile, releul reac\u021bioneaz\u0103.<\/span><\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<p>\u00a0<\/p>\n<p><span style=\"font-weight: 400;\">Ce po\u021bi face singur (\u00een siguran\u021b\u0103):<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Aerisire:<\/span>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">Opre\u0219te centrala, las-o 10\u201315 min s\u0103 se lini\u0219teasc\u0103.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">Aerise\u0219te radiatoarele \u00eencep\u00e2nd de la cel mai apropiat de central\u0103 c\u0103tre cel mai \u00eendep\u0103rtat. \u021aine un recipient, completeaz\u0103 presiunea pe manometru la rece spre ~1.2\u20131.5 bar.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">Dac\u0103 pompa are \u0219urub de aerisire central , cu centrala oprit\u0103 \u0219i rece, sl\u0103be\u0219te-l u\u0219or p\u00e2n\u0103 iese aer, apoi str\u00e2nge.<\/span><\/li>\n<\/ul>\n<\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Verific\u0103 robine\u021bii instala\u021biei:<\/span>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">S\u0103 fie complet deschi\u0219i pe tur\/retur la central\u0103 \u0219i la radiatoare.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">Cur\u0103\u021b\u0103 filtrul de retur (Y-filter) dac\u0103 ai acces \u0219i \u0219tii s\u0103-l desfaci: \u00eenchizi robine\u021bii, deschizi capacul filtrului, cure\u021bi sita, reasamblezi.<\/span><\/li>\n<\/ul>\n<\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Observ\u0103 presiunea la rece vs. \u00een func\u021bionare:<\/span>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">La rece: ~1.2\u20131.5 bar. \u00cen func\u021bionare ar trebui s\u0103 urce moderat (0.2\u20130.5 bar). Dac\u0103 sare mult (spre 2.2\u20132.5 bar), suspect vasul de expansiune.<\/span><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">C\u00e2nd s\u0103 chemi un tehnician:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Dac\u0103 dup\u0103 aerisire\/filtru\/robine\u021bi problema persist\u0103 sau revine rapid.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Pentru verificarea\/\u00eenc\u0103rcarea vasului de expansiune: se face cu instala\u021bia golit\u0103 pe partea de \u00eenc\u0103lzire, presiune azot\/air tipic 0.8\u20131.0 bar (depinde de instala\u021bie). Dac\u0103 membrana e fisurat\u0103, vasul trebuie \u00eenlocuit.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Dac\u0103 pompa de circula\u021bie are rulmen\u021bi\/hidrulic\u0103 uza\u021bi sau caviteaz\u0103 constant, poate necesita cur\u0103\u021bare sau \u00eenlocuire.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Dac\u0103 exist\u0103 auto-fill care completeaz\u0103 des, trebuie reglat sau verificat schimb\u0103torul\/robinetul de umplere care poate \u201ctranspira\u201d.<\/span><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Asa cum apare in exemplul din video \u0219i urmatoarele simptome: Auzi \u201cmotoras\u201d intermitent = cel mai probabil pompa de circula\u021bie porne\u0219te\/opre\u0219te des sau caviteaz\u0103. Manometrul oscileaz\u0103 \u00eentre ~1 \u0219i ~2 bar \u00een timp ce se aude pompa, apoi dup\u0103 oprire r\u0103m\u00e2ne pe ~1.5\u20132 bar. Cauze probabile (ordonate de la cele mai comune): Aer \u00een instala\u021bie &#8230; <a title=\"Centrala termica \u201cbaraie\u201d (de zici ca e motor) si presiunea fluctueaza ?\" class=\"read-more\" href=\"https:\/\/www.dioda.ro\/blog\/centrale-termice\/centrala-termica-baraie-de-zici-ca-e-motor-si-presiunea-fluctueaza\/\" aria-label=\"Read more about Centrala termica \u201cbaraie\u201d (de zici ca e motor) si presiunea fluctueaza ?\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":1785,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[76],"tags":[],"class_list":["post-1784","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-centrale-termice"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/www.dioda.ro\/blog\/wp-content\/uploads\/2025\/10\/Screenshot-2025-10-12-194347.png","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p8WdYv-sM","jetpack_likes_enabled":true,"_links":{"self":[{"href":"https:\/\/www.dioda.ro\/blog\/wp-json\/wp\/v2\/posts\/1784","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.dioda.ro\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.dioda.ro\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.dioda.ro\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.dioda.ro\/blog\/wp-json\/wp\/v2\/comments?post=1784"}],"version-history":[{"count":2,"href":"https:\/\/www.dioda.ro\/blog\/wp-json\/wp\/v2\/posts\/1784\/revisions"}],"predecessor-version":[{"id":1790,"href":"https:\/\/www.dioda.ro\/blog\/wp-json\/wp\/v2\/posts\/1784\/revisions\/1790"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.dioda.ro\/blog\/wp-json\/wp\/v2\/media\/1785"}],"wp:attachment":[{"href":"https:\/\/www.dioda.ro\/blog\/wp-json\/wp\/v2\/media?parent=1784"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.dioda.ro\/blog\/wp-json\/wp\/v2\/categories?post=1784"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.dioda.ro\/blog\/wp-json\/wp\/v2\/tags?post=1784"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}