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500L Split Heat Pump Water Heater

Name: 500L Split Heat Pump Water Heater
Uploaded: 2026-08-11T14:43:45+08:00
Description: 500L Split Heat Pump Water Heater – maximum capacity hot water for large homes and high‑demand applications. Ideal for 9+ person households or homes with multiple bathrooms. DC inverter technology delivers exceptional efficiency with up to 70% energy savings. Split design for flexible installation. Smart IoT controls for remote management.

500L Split Heat Pump Water Heater – maximum capacity hot water for large homes and high‑demand applications. Ideal for 9+ person households or homes with multiple bathrooms. DC inverter technology delivers exceptional efficiency with up to 70% energy savings. Split design for flexible installation. Smart IoT controls for remote management.

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Residential DC Inverter Water Heater (Split)

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Product Description

The 500L Split Heat Pump Water Heater is the flagship model of the series, engineered for large homes, multi‑bathroom residences, and high‑demand applications requiring maximum hot water capacity. With a 500‑liter tank, it provides abundant hot water for households of 9+ persons, ensuring uninterrupted supply even during peak usage across multiple bathrooms simultaneously. Advanced DC inverter technology delivers industry‑leading efficiency with COP up to 5.15, reducing energy consumption by up to 70% compared to conventional heating systems. The split design offers maximum installation flexibility – the tank can be placed indoors while the heat pump unit is installed outside, preserving valuable indoor space. R32 refrigerant ensures a lower environmental footprint. Built‑in IoT connectivity enables remote monitoring, scheduling, and performance tracking via smartphone. With its maximum capacity, superior efficiency, and intelligent features, this model is the ultimate choice for large families and high‑demand residential applications seeking the perfect balance of performance, sustainability, and cost savings.

A+++

Efficiency (COP 4.62)

48 dB

Quiet Operation

75°C

Max Outlet

Residential DC Inverter Water Heater (Split)

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.

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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.

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.

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.

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.

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.

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%.

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.

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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.

Certification

Committed to Quality, Safety & Sustainability

ISO 9001, ISO 14001, and ISO 45001 certified — ensuring excellence, environmental care, and workplace safety in everything we do.