{"id":7934,"date":"2026-09-21T14:52:08","date_gmt":"2026-09-21T06:52:08","guid":{"rendered":"https:\/\/www.china-heatpump.com\/?post_type=heatpump_faqs&p=7934"},"modified":"2026-09-21T15:00:57","modified_gmt":"2026-09-21T07:00:57","slug":"faq-of-r290-air-source-heat-pump","status":"publish","type":"heatpump_faqs","link":"https:\/\/www.china-heatpump.com\/it\/heatpump_faqs\/faq-of-r290-air-source-heat-pump\/","title":{"rendered":"FAQ of Kolant R290 air source heat pump"},"content":{"rendered":"
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More details about R290 products, please press here->,\u00a0\u00a0<\/span><\/a>\u00a0ultra high 40KW,<\/span> please press here-><\/a><\/span><\/p>\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

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Q1: What is R290 refrigerant? Why select R290 for EU market?<\/strong><\/p>

A: R290 is natural propane refrigerant with ultra-low GWP=3, no ozone depletion potential. It fully complies with EU F-Gas phase-down rules and future-proofs your European distribution business against HFC restrictions.<\/p>

Q2: Are KOLANT R290 heat pumps compliant with EU F-Gas?<\/strong><\/p>

A: Yes. Our R290 series meets EN14511, EN14825, EN378 safety standards and ERP A+++ energy label. CE, RoHS and CB certificates are available. Marking, manuals and refrigerant charge calculation follow EU A3 flammable refrigerant requirements.<\/p>

Q3: Can KOLANT R290 heat pumps be sold to USA & Canada?<\/strong><\/p>

A: R290 is not yet the mandatory transition refrigerant for North America. Current UL standards impose strict charge-limit constraints for A3 propane refrigerant, so R290 large-capacity models are not UL-certified for the North American market at present. For US\/Canada projects, we recommend our R32 series, which is ready for North American compliance.<\/p>

Q4: What is the difference between KOLANT R290 and R32 heat pumps?<\/strong><\/p>

A: R290 (GWP=3, A3 flammable) supports up to 75\u2103 hot water and long-term EU F-Gas compliance. R32 (GWP=675, A2L mildly flammable) is the mature option for North America and other markets. Both can reach ERP A+++. KOLANT supplies both lines for different regional strategies.<\/p>

2. Performance & Operating Conditions<\/h2>

Q5: What is the minimum ambient temperature for KOLANT R290 EVI inverter heat pump?<\/strong><\/p>

A: KOLANT R290 EVI monoblock runs stably down to -35\u2103 with vapor injection technology. It delivers heating, cooling and domestic hot water in one unit, with non-stop defrosting to avoid heating interruption in heavy frost.<\/p>

Q6: What are SCOP and SEER values for KOLANT R290 air-to-water heat pump?<\/strong><\/p>

A: SCOP @35\u2103 water outlet up to 4.75; SCOP @55\u2103 water outlet up to 4.12; SEER up to 4.72, achieving ERP A+++ energy class.<\/p>

Q7: Can R290 produce high-temperature domestic hot water? What is the max water outlet temperature?<\/strong><\/p>

A: Yes. KOLANT R290 heat pump can reach 75\u2103 outlet water temperature, suitable for floor heating, radiators and multi-point domestic hot water supply.<\/p>

Q8: Does KOLANT R290 support PV direct connection and Modbus?<\/strong><\/p>

A: Yes. Hardware supports solar PV direct connection. Built-in Modbus RTU protocol allows simple integration with BMS, home energy management and European smart home platforms.<\/p>

Q9: What is the maximum capacity of KOLANT R290 heat pump?<\/strong><\/p>

A: KOLANT offers industry-leading large-size R290 heat pump up to 40kW<\/strong>, which is much higher than most competitors\u2019 R290 models. It serves light commercial and large residential projects. Our full portfolio covers small residential units from 5kW up to the 40kW commercial model.<\/p>

3. R290 Safety Design<\/h2>

Q10: R290 is A3 flammable refrigerant. Is KOLANT R290 heat pump safe?<\/strong><\/p>

A: KOLANT designs strictly per EU813 for A3 refrigerant. Monoblock models keep the full refrigerant circuit outdoors; only water pipes enter the building. It has hermetic sealed loop, controlled refrigerant charge, leak detection, alarm and auto power-off protection. Safety labels, installation space and ventilation guidance are included in manuals.<\/p>

Important: R290 units must be installed and serviced by certified HVAC technicians following local codes.<\/p><\/blockquote>

Q11: What safety documents can you provide for R290 units?<\/strong><\/p>

A: Multi-language user & service manuals, refrigerant charge safety calculation sheet, minimum installation space guidance, risk assessment document and CE test reports for customs and installer training.<\/p>

4. Product Range & Applications<\/h2>

Q12: What R290 heat pump models does KOLANT supply?<\/strong><\/p>

A: Full range including: R290 EVI inverter heating & cooling monoblock\/split air-to-water heat pump (5kW ~ 40kW); R290 residential & commercial pool heat pumps; R290 high-temperature heat recovery heat pumps. OEM & ODM customization available.<\/p>

Q13: What projects suit KOLANT R290 heat pumps?<\/strong><\/p>

A: Single-family villas, apartment blocks, factories, greenhouses, schools, hospitals, hotels, public buildings, swimming pools and other light commercial projects. Our 40kW R290 model is ideal for large-space heating above 1000\u33a1.<\/p>

5. OEM \/ ODM, Lead Time & Warranty<\/h2>

Q14: Does KOLANT support OEM \/ ODM for European distributors?<\/strong><\/p>

A: Yes. Custom brand logo, casing colour, software parameters, multi-language UI, manuals and packaging are available for OEM. ODM development is acceptable based on your technical specifications.<\/p>

Q15: What is your warranty for R290 heat pumps?<\/strong><\/p>

A: Standard 2-year full unit warranty from delivery date. Free spare parts for quality failures under normal operation. Lifelong technical support is provided. Extended warranty can be negotiated for large-volume distributors.<\/p>

Q16: What is the production lead time for R290 orders?<\/strong> A: Standard bulk orders: 30\u201345 working days. OEM\/ODM customized orders: 45\u201360 working days, depending on quantity and customization scope. Partial shipment is available for urgent projects.<\/p>

Q17: Can I get sample units for local lab testing?<\/strong><\/p>

A: Yes. Sample cost and freight are on buyer\u2019s side; sample cost can be partially deducted in subsequent bulk orders.<\/p>

6. Installation & Technical Support<\/h2>

Q18: Can KOLANT provide installer training materials for R290?<\/strong><\/p>

A: Yes. We supply technical manuals, troubleshooting guides, installation videos and PPT training files. Online technical training sessions for your engineering team are available.<\/p>

Q19: Does monoblock R290 require indoor refrigerant piping modification?<\/strong><\/p>

A: No. All refrigerant components stay in the outdoor unit. Only water pipes run indoors. Follow manual safety distance and ventilation rules and connect to your existing heating circuit.<\/p>

7. Manufacturer Background<\/h2>

Q20: What is KOLANT\u2019s heat pump manufacturing & export background?<\/strong><\/p>

A: Guangzhou Kolant Heat Tech inherits refrigeration know-how dating back to 1988, with technical heritage from Hualing and Mitsubishi refrigeration development. The factory holds ISO9001, ISO14001, ISO45001. Products are exported to over 40 countries.<\/p>

Q21: Do you accept third-party factory audit?<\/strong><\/p>

A: Yes. We welcome factory visits, TUV\/SGS pre-shipment inspection (PSI) and vendor qualification audits.<\/p>\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},"featured_media":0,"template":"","meta":{"site-sidebar-layout":"no-sidebar","site-content-layout":"","ast-site-content-layout":"full-width-container","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":"disabled","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 center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}}},"categories":[],"faqcat":[397],"class_list":["post-7934","heatpump_faqs","type-heatpump_faqs","status-publish","hentry","faqcat-heat-pump-faqs"],"_links":{"self":[{"href":"https:\/\/www.china-heatpump.com\/it\/wp-json\/wp\/v2\/heatpump_faqs\/7934","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.china-heatpump.com\/it\/wp-json\/wp\/v2\/heatpump_faqs"}],"about":[{"href":"https:\/\/www.china-heatpump.com\/it\/wp-json\/wp\/v2\/types\/heatpump_faqs"}],"version-history":[{"count":13,"href":"https:\/\/www.china-heatpump.com\/it\/wp-json\/wp\/v2\/heatpump_faqs\/7934\/revisions"}],"predecessor-version":[{"id":7949,"href":"https:\/\/www.china-heatpump.com\/it\/wp-json\/wp\/v2\/heatpump_faqs\/7934\/revisions\/7949"}],"wp:attachment":[{"href":"https:\/\/www.china-heatpump.com\/it\/wp-json\/wp\/v2\/media?parent=7934"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.china-heatpump.com\/it\/wp-json\/wp\/v2\/categories?post=7934"},{"taxonomy":"faqcat","embeddable":true,"href":"https:\/\/www.china-heatpump.com\/it\/wp-json\/wp\/v2\/faqcat?post=7934"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}