Tel: +86 189 2882 8773
Email: sales@tongyiheatpump.com
Product details of the residential heat pump water heater
Product Information
The production of TONGYI residential heat pump water heater adopts the high standard of workmanship. To ensure the optimum quality and durability, the product is examined on various parameters at every level of production. residential heat pump water heater is produced by superior material and advanced technology.
Product Description
The 400L Split Heat Pump Water Heater is designed for large households of 7‑9 persons and high‑demand residential applications, delivering extra‑large capacity hot water for daily bathing, kitchen, laundry, and cleaning needs. The 400‑liter tank ensures generous hot water supply even under heavy simultaneous usage – ideal for homes with multiple bathrooms or high hot water consumption. Advanced DC inverter technology provides exceptional efficiency with COP up to 5.15, reducing energy consumption by up to 70% compared to traditional electric or gas systems. The split design enables flexible installation, with the tank placed indoors and the heat pump unit installed outside. R32 refrigerant offers a lower environmental footprint. Built‑in IoT connectivity enables remote monitoring, scheduling, and fault detection via smartphone. With its extra‑large capacity, superior efficiency, and intelligent features, this model is the perfect choice for large families and homes with high hot water demands seeking sustainable, cost‑effective solutions.
A+++
Efficiency (COP 4.62)
48 dB
Quiet Operation
75°C
Max Outlet
Products Advantages
Discover the core advantages that make Tongyi residential split heat pumps stand out – from exceptional energy efficiency and intelligent controls to reliable year‑round performance.
Twin‑rotor DC Inverter Compressor
Consumes 30% less power than traditional scroll compressors, with wider frequency range for precise control and lower noise.
R32 Eco Refrigerant
Non‑toxic, stable, with low GWP and excellent heating performance. Complies with EU F‑Gas phase‑down requirements.
Built‑in Pump
Extremely low running noise and greatly reduced installation difficulty – plug‑and‑play convenience.
Enamel Water Tank
High resistance and great pressure bearing. Enamel lining isolates water from stainless steel weld lines, prolonging working life.
Up to 75°C Outlet Temperature
Higher outlet water temperature meets most demands for residential sanitary hot water.
Ultra‑Quiet Operation
Noise reduced by 8‑10 dB(A) compared to scroll compressor models – as low as 48 dB(A).
Wide Power Supply
Adapts to ±20% voltage fluctuation and 50/60Hz power supply specifications.
IoT Smart Control
Remote monitoring and control via IoT. OTA (over‑air) updates enable remote software upgrades.
Smart Defrost
Accurately judges defrost timing based on running time, suction/exhaust pressure and ambient temperature. Shortens defrosting to 3‑5 minutes.
PV Direct Connect
Direct connection to photovoltaic equipment via MPPT board – reduces running cost by around 50%.
Modbus Protocol Support
Flexible and stable control. Optionally supports BACnet and BMS.
Multiple Protections
High temperature protection, compressor overload & overheat protection, power phase sequence & over/under voltage protection.
Multi-Scene Heat Pump Solutions
Our residential split heat pumps deliver efficient hot water for diverse home applications:
Villas & Detached Homes
Year‑round sanitary hot water with ultra‑quiet operation that doesn't disturb daily life.
Apartments & Multi‑family Buildings
Compact split design with flexible tank capacity (200–500 L) fits various floor plans.
Retrofit & Renovation
Replace traditional gas/electric water heaters. Built‑in pump simplifies installation, short payback.
PV‑Coupled Systems
Connect directly to photovoltaic panels via MPPT to maximise solar self‑consumption and further reduce costs.
Energy & Cost Savings
Up to 77% energy savings – Under the same conditions (daily hot water demand 1000L, heating from 15°C to 55°C), Tongyi heat pump achieves a COP of 4.45–4.62, generating 4.45–4.62 kWh of heat per 1 kWh of electricity consumed.
| Heating Method | Tongyi Heat Pump | Electric Water Heater | Liquid Gas Water Heater |
| Efficiency | 380% | 95% | 80% |
| Daily Energy Demand | 12.2 kWh | 49.5 kWh | 5.8 m³ |
| Daily Fuel Cost | $1.82 | $7.32 | $6.28 |
| Annual Running Cost | $606.8 | $2667.2 | $2294.3 |
| Based on 1000L daily hot water demand, heating from 15°C to 55°C. Prices are market references at the time. Actual data may vary – please refer to local conditions. | |||
Product Specifications
Our specification table gives you a clear overview of the main technical data, helping you compare models with ease
| Parameter | KX35 EPA‑V | KX55 EPA‑V | KX95 EPA‑V | KX120 EPA‑V |
| Rated Heating Capacity | 3.5 kW | 5.5 kW | 9.5 kW | 12 kW |
| COP | 4.45 | 4.51 | 4.62 | 4.53 |
| Max Input Power | 1.3 kW | 2.2 kW | 3.1 kW | 4.6 kW |
| Max Input Current | 6 A | 9 A | 14 A | 21 A |
| Operating Ambient Temp | ‑15~43°C | ‑15~43°C | ‑15~43°C | ‑15~45°C |
| Max Outlet Water Temp | 60°C | 60°C | 60°C | 60°C |
| Noise Level | 48 dB | 50 dB | 53dB | 55 dB |
| Water Tank Volume | 200 L | 300 L | 400 L | 500 L |
| Insulation Thickness | 50 mm | 50 mm | 50 mm | 50 mm |
| Net Weight (Heat Pump Unit) | 40 kg | 52 kg | 72 kg | 85 kg |
| Net Weight (Tank) | 78 kg | 89 kg | 105 kg | 128 kg |
| Dimensions (Tank) | Φ520×1657 mm | Φ580×1850 mm | Φ710×1540 mm | Φ710×1890mm |
| Data measured under standard conditions. Specifications are subject to change without prior notice. Please refer to the product nameplate and manual for updated information. | ||||
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 luxury hotels to large-scale infrastructure projects, from offices to stadiums - Tongyi heat pumps have demonstrated reliable performance in thousands of projects across over 40 countries. Wherever comfort meets sustainability, our solutions are at work.
Environmental Impact
Join the green revolution with Tongyi Heat Pump Technology – Your partner in achieving carbon neutrality!
For over two decades, we've been at the forefront of the fight against climate change by conserving energy and reducing CO₂ emissions:
750,000 tons of coal consumption reduced
3 billion kilograms of CO₂ emissions prevented
12.5 million kilograms of SO₂ emissions saved
3.2 million kilograms of NOx emissions reduced
Our efforts are equivalent to planting 100 million trees since 1999. Choose Tongyi Heat Pump Technology and experience the benefits of eco‑friendly commercial operations.
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 Inverter Residential Split Heat Pump?
Noise can be reduced by 8‑10 dB(A) compared with scroll compressor models – as low as 48 dB(A) for the KX35 model, ensuring a peaceful home environment.
2
Is it difficult to install in an existing home?
No. The built‑in water pump greatly reduces installation difficulty, making it suitable for both new builds and retrofit projects with minimal disruption.
3
Can it handle cold winter conditions?
Yes. The unit operates reliably in ambient temperatures as low as ‑15°C (‑45°C for KX120), with smart defrost ensuring uninterrupted hot water supply.
4
How does IoT connectivity benefit homeowners?
It enables remote monitoring, scheduling, and real‑time performance tracking. Homeowners can adjust settings and receive alerts from anywhere, optimising energy use.
5
What kind of energy savings can I expect?
DC inverter technology adjusts compressor speed based on actual load. Compared to traditional electric or gas water heaters, it can reduce annual running costs by up to 74‑77%.
6
What is the maximum outlet water temperature?
The unit can deliver up to 75°C outlet water temperature, meeting most demands for residential sanitary hot water.
Company Advantage
• TONGYI provides professional and thoughtful after-sales service to better meet the needs of customers.
• Since the beginning in our company has been focusing on the production and research of with rich experience.
• TONGYI's gain a relatively large market share in China. They are also exported to Africa, Southeast Asia, and other countries and regions.
• Traffic convenience including easy and open highway access and the great geographic location is conducive to the transportation of br /> Friends from all walks of life are warmly welcomed to inquire and negotiate cooperation!
{{item.score}} Stars
{{item.pre}}%
{{item.nickname ? (item.nickname.slice(0, 2) + '*****') : item.source === 1 ? 'mall buyer' : '--'}}
{{item.comment_time}}
Review in the {{item.country}}
{{itemAttr.params_key}}: {{itemAttr.params_value}}
Contact us
we welcome custom designs and ideas and is able to cater to the specific requirements. for more information, please visit the website or contact us directly with questions or inquiries.
TONGYI Heat Pump, recognized as a national high-tech enterprise, is committed to advancing air water heat pump technology.
Shortcut links
Products
Contact Us
Tel: +86 189 2882 8773
Email: sales@tongyiheatpump.com
Copyright © 2026 Tongyi www.tongyiheatpump.net | Sitemap Privacy Policy