{"id":5995,"date":"2026-04-28T20:58:10","date_gmt":"2026-04-28T12:58:10","guid":{"rendered":"https:\/\/www.china-heatpump.com\/?p=5995"},"modified":"2026-05-04T17:00:23","modified_gmt":"2026-05-04T09:00:23","slug":"how-does-the-evi-heat-pump-unit-achieve-better-performance-in-cold-weather","status":"publish","type":"post","link":"https:\/\/www.china-heatpump.com\/fr\/how-does-the-evi-heat-pump-unit-achieve-better-performance-in-cold-weather\/","title":{"rendered":"Comment la pompe \u00e0 chaleur EVI est-elle plus performante par temps froid ?"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"5995\" class=\"elementor elementor-5995\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-9887b53 e-flex e-con-boxed e-con e-parent\" data-id=\"9887b53\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-f13ee22 elementor-widget elementor-widget-text-editor\" data-id=\"f13ee22\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div>Answer: Kolant EVI (Enhanced Vapor Injection) heat pumps realize outstanding low-temperature performance via optimized refrigeration cycle and special structural upgrades.<\/div><div>\u00a0<\/div><div>Premi\u00e8rement, elle adopte une <strong>EVI enhanced vapor injection compressor<\/strong> with an economizer. Different from ordinary single-stage compression, it injects intermediate low-temperature refrigerant vapor into the compressor\u2019s compression chamber. This achieves a quasi two-stage compression effect, effectively reducing the compression ratio and avoiding compressor overheating and power attenuation in frigid conditions.<\/div><div>\u00a0<\/div><div>Second, the vapor injection technology increases the overall enthalpy of the system. It supplements heating capacity, greatly weakening the performance drop that conventional heat pumps suffer in cold weather. The unit can maintain stable and strong heating output even at -25\u00b0C to -30\u00b0C.<\/div><div>\u00a0<\/div><div>In addition, it is equipped with low-temperature resistant core components, enhanced cold-resistant lubrication system and optimized heat exchange structure. These designs ensure smooth refrigerant circulation and reliable unit operation under extreme low ambient temperature.<\/div><div>\u00a0<\/div><div>Gr\u00e2ce aux am\u00e9liorations susmentionn\u00e9es, les pompes \u00e0 chaleur EVI conservent un COP \u00e9lev\u00e9 et une efficacit\u00e9 de chauffage stable dans les climats froids, ce qui r\u00e9sout parfaitement le probl\u00e8me de la mauvaise r\u00e9sistance au froid des pompes \u00e0 chaleur ordinaires.<\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Answer: Kolant EVI (Enhanced Vapor Injection) heat pumps realize outstanding low-temperature performance via optimized refrigeration cycle and special structural upgrades.\u00a0First, [&hellip;]<\/p>","protected":false},"author":2,"featured_media":6152,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center 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