Cold Climate Model Heat Pump
Cold Climate Model Heat Pump – powerful heating for regions with harsh winters. EVI technology delivers stable performance down to -25°C. DC inverter ensures exceptional efficiency year‑round. Ultra‑quiet operation and IoT connectivity enable smart control. Ideal for Nordic countries, mountainous regions, and other cold‑climate markets.
5.0
design customization
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Please fill out the form below to request a quote or to request more information about us. please be as detailed as possible in your message, and we will get back to you as soon as possible with a response. we're ready to start working on your new project, contact us now to get started.
Product Description
The Cold Climate Model Heat Pump is engineered specifically for regions with prolonged, severe winters. Featuring Enhanced Vapor Injection (EVI) technology, it delivers exceptional heating performance even at ambient temperatures as low as -25°C – ensuring reliable comfort through the harshest winter conditions. The DC inverter compressor adjusts capacity in real time to maintain stable output while minimizing energy consumption. Ultra‑quiet operation ensures peaceful indoor environments. Built‑in IoT connectivity enables remote monitoring and smart control, allowing users to manage the system from anywhere. With reliable defrost control and a wide operating range, this model is the ideal choice for Nordic countries, mountainous regions, and other cold‑climate applications.
A+++
Energy Class
44 dB
Quiet Operation
8
Units Cascade
Products Advantages
Discover the core advantages that make our heat pumps stand out – from exceptional energy efficiency and intelligent controls to reliable winter performance. Each benefit is explored in detail on the following pages.
EVI High‑Output Core
DC inverter EVI technology boosts low‑temperature heating capacity and efficiency, ensuring reliable warmth in harsh winters.
R32 Eco Refrigerant
Lower GWP, complies with EU F‑Gas phase‑down. High‑quality stainless steel components ensure durability and corrosion resistance.
IoT Smart Control
Integrated WiFi color touchscreen and intelligent temperature control, with remote monitoring, data analytics, and climate‑adaptive curves.
A+++ Ultra Efficiency
Top EU energy class, twin‑rotor compressor boosts overall efficiency by 30%, with quieter operation and longer lifespan.
Smart Defrost Logic
Optimized defrost control increases effective heat output by 10% compared to conventional systems, ensuring uninterrupted comfort.
Ultra‑Quiet Operation
Noise level as low as 40 dB in silent mode, creating a peaceful living and working environment.
SG Ready Smart Grid
SG Ready certified, responds to grid signals to automatically optimize electricity usage periods, lowering electricity bills.
EU Subsidy Eligible
CE certified and listed in major subsidy programs including BAFA (Germany), ISDE (Netherlands), and ZUM (Poland), significantly reducing initial investment.
Multi-Scene Heat Pump Solutions
Years of iteration, one reliable system. Our heat pumps deliver efficient heating and cooling for diverse applications – now available worldwide.
Residential Heating & Cooling
Villas, apartments, and self‑built homes – year‑round comfort with ultra‑low temperature capability for harsh northern climates.
Commercial Buildings
Offices, hotels, schools, hospitals – central heating/cooling with quiet operation (40 dB) that doesn’t disturb work or daily life.
Retrofit & Renovation
Replace traditional gas/oil boilers or electric heaters. Can be directly connected to existing radiators or underfloor heating – simple installation, short payback.
PV‑Coupled Systems
Integrate with photovoltaic systems to convert surplus solar energy into heat, maximizing self‑consumption and further reducing operational costs.
Energy & Cost Savings
R32 EVI DC Inverter Series – premium heating and cooling solutions for diverse climate zones. Powered by R32 refrigerant with low GWP, the series combines advanced DC inverter technology with Enhanced Vapor Injection (EVI) , delivering stable heating performance even at -25°C. Ultra‑quiet operation (as low as 46 dB(A)), IoT connectivity, and high seasonal efficiency make this series the ideal choice for residential and light commercial applications across all climate conditions – from freezing winters to scorching summers.
Product Specifications
Our specification table gives you a clear overview of the main technical data, helping you compare models with ease
| Parameter | V5 | V5 | V5 |
| Heating Rated Capacity (A7/W35) | 5.10 kW | 7.10 kW | 9.13 kW |
| Heating Capacity Range | 3.00 – 6.43 kW | 3.00 – 9.00 kW | 4.00 – 12.66 kW |
| Heating Input Power Range | 0.60 – 1.54 kW | 0.60 – 2.15 kW | 0.90 – 3.15 kW |
| Energy Class (Heating, 35°C) | A+++ | A+++ | A+++ |
| ErP Energy Class (55°C) | A++ | A++ | A++ |
| Power Supply | 220V / 1Ph / 50Hz | 220V / 1Ph / 50Hz | 220V / 1Ph / 50Hz |
| Max. Input Power | 2.20 kW | 3.00 kW | 4.00 kW |
| Max. Input Current | 10.00 A | 13.50 A | 18.00 A |
| Sound Pressure Level (1m) | 44 dB(A) | 46 dB(A) | 48 dB(A) |
| Ambient Temperature Range (Heating) | –25 ~ +46 °C | –25 ~ +46 °C | –25 ~ +46 °C |
| Refrigerant (Type / GWP) | R32 / 675 | R32 / 675 | R32 / 675 |
WHY CHOOSE US?
Tongyi has been advancing heat pump technology since 1999, with proven global experience across 40+ countries and certifications that meet the most rigorous international standards.
26 Years of Expertise-Founded in 1999, we entered Europe in 2003 — a pioneer with two decades of global track record.
Fully Certified-CE, ETL, CB, 3C, TÜV Rheinland — all the credentials that matter for European and American markets.
Trusted by Global Brands-From airports and stadiums to Shangri‑La, Sofitel, and Hilton — world‑class landmarks rely on Tongyi.
Our Cases - what we finished
From homes to hotels, from offices to stadiums — Tongyi heat pumps have delivered reliable performance in thousands of projects across 40+ countries. Wherever comfort meets sustainability, our solutions are at work.
FAQ
Tell us about your project requirements and we will figure out a solution that will meet your budget and design expectations.
1
How quiet is the Office Comfort Heat Pump?
As low as 46 dB(A) – quieter than a typical office conversation. This ensures a productive, distraction‑free workspace even during full‑load operation.
2
Is it difficult to install in an existing office building?
No. The unit offers flexible capacity options and simplified piping connections, making it suitable for both new builds and retrofit projects with minimal disruption.
3
Can it handle extreme winter conditions?
Yes. EVI‑equipped models deliver stable heating performance down to -25°C, ensuring reliable comfort even in cold climates.
4
How does IoT connectivity benefit facility managers?
It enables remote monitoring, scheduling, and real‑time performance tracking. Facility managers can adjust settings and receive alerts from anywhere, optimizing energy use and reducing maintenance costs.
5
What kind of energy savings can I expect?
DC inverter technology adjusts compressor speed based on actual load, delivering exceptional seasonal efficiency. Compared to traditional HVAC systems, it can reduce annual operating costs by up to 30‑40%.
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As a distinguished national high-tech enterprise, Tongyi Heat Pump is dedicated to the research, development, and manufacturing of air-to-water heat pumps, providing residential and commercial renewable energy-saving solutions to thousands of clients worldwide.
Committed to Quality, Safety & Sustainability
ISO 9001, ISO 14001, and ISO 45001 certified — ensuring excellence, environmental care, and workplace safety in everything we do.
TONGYI Heat Pump, recognized as a national high-tech enterprise, is committed to advancing air water heat pump technology.
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