{"id":22153,"date":"2026-05-13T15:44:21","date_gmt":"2026-05-13T13:44:21","guid":{"rendered":"https:\/\/roder.it\/controles\/pression-air-gaz-et-combustion\/instruments-pour-la-refrigeration-hvac-r\/"},"modified":"2026-09-26T21:34:46","modified_gmt":"2026-09-26T19:34:46","slug":"instruments-pour-la-refrigeration-hvac-r","status":"publish","type":"page","link":"https:\/\/roder.it\/fr\/controles\/pression-air-gaz-et-combustion\/instruments-pour-la-refrigeration-hvac-r\/","title":{"rendered":"Instruments pour la r\u00e9frig\u00e9ration HVAC\/R"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Les instruments pour la r\u00e9frig\u00e9ration et le CVC sont des dispositifs sp\u00e9cialis\u00e9s pour le service, la maintenance et le contr\u00f4le qualit\u00e9 des installations de froid industriel et commercial, de climatisation et de pompes \u00e0 chaleur. Ils comprennent des groupes manom\u00e9triques (manifolds) pour la mesure de la haute et de la basse pression des circuits frigorifiques, des vacuom\u00e8tres de haute sensibilit\u00e9 pour la v\u00e9rification du vide avant charge, des manom\u00e8tres \u00e9lectroniques avec base de donn\u00e9es de fluides frigorig\u00e8nes, des thermohygrom\u00e8tres pour le contr\u00f4le des conditions ambiantes et des balances pour le dosage du fluide frigorig\u00e8ne. Ils sont utilis\u00e9s par les frigoristes, les techniciens de maintenance CVC, les installateurs de pompes \u00e0 chaleur, les services techniques et les contr\u00f4leurs d&rsquo;efficacit\u00e9 \u00e9nerg\u00e9tique.  <\/p>\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<div class=\"wp-block-cover is-light popmake-11245\" style=\"border-width:1px;border-top-left-radius:10px;border-top-right-radius:10px;border-bottom-left-radius:10px;border-bottom-right-radius:10px;min-height:250px;aspect-ratio:unset;\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"213\" class=\"wp-block-cover__image-background wp-image-14896 size-large\" alt=\"banner aiuto nella scelta dello strumento oppure della tecnologia\" src=\"https:\/\/roder.it\/wp-content\/uploads\/2026\/06\/banner_technical_support_choose_products-1024x213.png\" data-object-fit=\"cover\" srcset=\"https:\/\/roder.it\/wp-content\/uploads\/2026\/06\/banner_technical_support_choose_products-1024x213.png 1024w, https:\/\/roder.it\/wp-content\/uploads\/2026\/06\/banner_technical_support_choose_products-300x63.png 300w, https:\/\/roder.it\/wp-content\/uploads\/2026\/06\/banner_technical_support_choose_products-768x160.png 768w, https:\/\/roder.it\/wp-content\/uploads\/2026\/06\/banner_technical_support_choose_products.png 1200w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><span aria-hidden=\"true\" class=\"wp-block-cover__background has-background-dim\" style=\"background-color:#d3d6dc\"><\/span><div class=\"wp-block-cover__inner-container is-layout-constrained wp-container-core-cover-is-layout-a304f9a9 wp-block-cover-is-layout-constrained\">\n<p class=\"has-text-align-right has-ti-fg-color has-text-color has-link-color wp-elements-1 wp-block-paragraph\" style=\"font-size:clamp(21.536px, 1.346rem + ((1vw - 3.2px) * 1.726), 35px);\"><strong>Souhaitez-vous \u00eatre aid\u00e9 dans le choix du produit ?<\/strong><\/p>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-right is-layout-flex wp-container-core-buttons-is-layout-b507c051 wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/roder.it\/contatti-roder-mail-indirizzo-stabilimento-oglianico-automazione-misure-controlli-industriali\/\">Cliquez ici !<\/a><\/div>\n<\/div>\n<\/div><\/div>\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<h2 class=\"wp-block-heading\">Groupes manom\u00e9triques (manifolds)<\/h2><p class=\"wp-block-paragraph\">Le manifold traditionnel est un ensemble de deux manom\u00e8tres (haute et basse pression) mont\u00e9s sur un bloc \u00e0 trois vannes pour le contr\u00f4le des flux de fluide frigorig\u00e8ne lors des op\u00e9rations de charge, de r\u00e9cup\u00e9ration, de tirage au vide et de contr\u00f4le. Les manifolds num\u00e9riques int\u00e8grent des capteurs \u00e9lectroniques de pression et des thermocouples avec un afficheur tr\u00e8s lisible, des bases de donn\u00e9es de fluides frigorig\u00e8nes (R134a, R410A, R32, R1234yf, R290, R600a, R744 et autres), le calcul automatique de la temp\u00e9rature de saturation correspondant \u00e0 la pression, la surchauffe et le sous-refroidissement (param\u00e8tres cl\u00e9s de l&rsquo;analyse du circuit), ainsi que des connexions Bluetooth vers une application mobile pour l&rsquo;archivage et le diagnostic. Ils constituent l&rsquo;outil de travail principal du frigoriste moderne.  <\/p><h2 class=\"wp-block-heading\">Vacuom\u00e8tres<\/h2><p class=\"wp-block-paragraph\">Les vacuom\u00e8tres pour la r\u00e9frig\u00e9ration sont des instruments de haute sensibilit\u00e9 destin\u00e9s \u00e0 mesurer le niveau de vide atteint dans le circuit avant la charge en fluide frigorig\u00e8ne. Un vide pouss\u00e9 (typiquement sous 500 microns = 0,067 mbar) est essentiel pour \u00e9liminer l&rsquo;humidit\u00e9 r\u00e9siduelle et les gaz incondensables qui, s&rsquo;ils sont pr\u00e9sents, compromettraient les performances du circuit et la dur\u00e9e de vie du compresseur. Les vacuom\u00e8tres utilisent des capteurs \u00e0 thermocouple (\u00e9tendue standard 0-25 000 microns, exactitude \u00b110 % P.E.), des capteurs capacitifs (\u00e9tendue \u00e9largie, haute exactitude) et des capteurs Pirani (pour les \u00e9tendues tr\u00e8s basses). Des afficheurs num\u00e9riques tr\u00e8s lisibles et des fonctions d&rsquo;alarme \u00e0 l&rsquo;atteinte du seuil sont des caract\u00e9ristiques standard.   <\/p><h2 class=\"wp-block-heading\">Balances pour fluides frigorig\u00e8nes<\/h2><p class=\"wp-block-paragraph\">La charge des circuits frigorifiques exige un dosage pr\u00e9cis du fluide frigorig\u00e8ne, g\u00e9n\u00e9ralement exprim\u00e9 en grammes ou en kilogrammes selon les sp\u00e9cifications du constructeur de l&rsquo;installation. Des balances \u00e9lectroniques d\u00e9di\u00e9es (\u00e9tendue typique 50 kg avec une r\u00e9solution de 5 g) sont utilis\u00e9es pour peser les bouteilles de fluide frigorig\u00e8ne avant et pendant la charge, en contr\u00f4lant la quantit\u00e9 introduite dans l&rsquo;installation. Les mod\u00e8les \u00e0 commande sans fil et \u00e0 arr\u00eat automatique \u00e0 l&rsquo;atteinte du poids cible simplifient le travail du technicien. Pour les installations \u00e0 tr\u00e8s faible charge (splits r\u00e9sidentiels de 0,5-1 kg), on utilise des balances \u00e0 haute r\u00e9solution (1 g).   <\/p><h2 class=\"wp-block-heading\">Applications de service CVC et froid<\/h2><p class=\"wp-block-paragraph\">Les op\u00e9rations typiques r\u00e9alis\u00e9es avec ces instruments sont : la mise en service d&rsquo;installations neuves (tirage au vide, charge, contr\u00f4le) ; la maintenance p\u00e9riodique (v\u00e9rification des pressions, des temp\u00e9ratures, de la pr\u00e9sence d&rsquo;incondensables) ; le diagnostic de pannes (analyse de la surchauffe et du sous-refroidissement pour identifier des probl\u00e8mes de charge, de d\u00e9tente, de condensation ou d&rsquo;\u00e9vaporation) ; les contr\u00f4les d&rsquo;efficacit\u00e9 (v\u00e9rification du COP \/ EER de l&rsquo;installation par rapport aux valeurs de conception) ; les inspections F-Gas (r\u00e8glement UE 517\/2014 relatif au contr\u00f4le des gaz \u00e0 effet de serre fluor\u00e9s, avec des v\u00e9rifications p\u00e9riodiques obligatoires pour les installations au-dessus de certains seuils) ; la mise en service de pompes \u00e0 chaleur r\u00e9sidentielles et commerciales.<\/p><h2 class=\"wp-block-heading\">R\u00e8glement F-Gas<\/h2><p class=\"wp-block-paragraph\">Le r\u00e8glement europ\u00e9en F-Gas (517\/2014) impose des contr\u00f4les d&rsquo;\u00e9tanch\u00e9it\u00e9 p\u00e9riodiques sur les circuits frigorifiques contenant des gaz \u00e0 effet de serre fluor\u00e9s (HFC, PFC, SF6). La fr\u00e9quence d\u00e9pend de la teneur en \u00e9quivalent CO2 : tous les 12 mois pour \u2265 5 t \u00e9q. CO2, tous les 6 mois pour \u2265 50 t \u00e9q. CO2, tous les 3 mois pour \u2265 500 t \u00e9q. CO2. Les techniciens doivent \u00eatre certifi\u00e9s F-Gas (en Italie, une attestation pour la personne physique et une pour l&rsquo;entreprise) et utiliser une instrumentation certifi\u00e9e. Les inspections comprennent un examen visuel, un contr\u00f4le \u00e9lectronique des fuites (d\u00e9tecteurs \u00e0 reniflage), des essais de pression et, le cas \u00e9ch\u00e9ant, des essais sous vide sur les circuits vidang\u00e9s.   <\/p><h2 class=\"wp-block-heading\">Crit\u00e8res de choix<\/h2><p class=\"wp-block-paragraph\">Le choix des instruments CVC et froid d\u00e9pend de : la gamme de fluides frigorig\u00e8nes commerciaux \u00e0 traiter (les fluides plus r\u00e9cents comme le R32 et le R1234yf exigent une compatibilit\u00e9 sp\u00e9cifique) ; les \u00e9tendues de pression et de temp\u00e9rature ; la portabilit\u00e9 pour les interventions sur site ; l&rsquo;int\u00e9gration avec une application mobile et un archivage cloud pour la gestion d&rsquo;un portefeuille de clients ; la conformit\u00e9 \u00e0 la r\u00e9glementation F-Gas ; la fourniture de kits complets avec flexibles de service, raccords standard et accessoires de s\u00e9curit\u00e9 ; et le service apr\u00e8s-vente et les \u00e9talonnages p\u00e9riodiques.<\/p>","protected":false},"excerpt":{"rendered":"<p>Groupes manom\u00e9triques, vacuom\u00e8tres, manifolds et thermohygrom\u00e8tres pour installations de climatisation et de r\u00e9frig\u00e9ration.<\/p>\n","protected":false},"author":157040980,"featured_media":0,"parent":19493,"menu_order":5,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_yoast_wpseo_focuskw":"","_yoast_wpseo_title":"","_yoast_wpseo_metadesc":"","_coblocks_attr":"","_coblocks_dimensions":"","_coblocks_responsive_height":"","_coblocks_accordion_ie_support":"","_wpcom_ai_launchpad_about_page":false,"_wpcom_ai_launchpad_gallery_page":false,"_wpcom_ai_launchpad_contact_page":false,"_wpcom_ai_launchpad_events_page":false,"_wpcom_ai_launchpad_video_page":false,"_wpcom_ai_launchpad_portfolio_piece":false,"footnotes":""},"class_list":["post-22153","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin 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