Water heater — 380V 3N~50Hz, power source Electric. The complete factory specification follows. Made by Qingdao Haier New Energy Electric Appliance Co., Ltd. (4 years on the platform, factory-assessed). For a binding price and lead time, send the volume you need and where it ships to.
Key Features of This Water Heater
- Model Number: KFXRS-43IIF7ASU1
- Power Source: Electric
- Power Supply: 380V 3N~50Hz
- Housing Material: Stainless Steel
- Refrigerant: R32
- Warranty: 2 Years
Technical Specifications
| Type | Air Source Heat Pump |
|---|---|
| Energy Efficiency Rating | Class A+++ |
| Application | Hotel, Commercial, Household |
| Refrigerant | R32 |
| Storage / Tankless | Storage |
| Installation | Freestanding |
| App-Controlled | Yes |
| Housing Material | Stainless Steel |
| Feature | Eco-Friendly, Easy Installation, Easy Operation, Energy-Saving, Safe, High Efficiency |
| Power Source | Electric |
| Warranty | 2 Years |
| After-Sales Service Provided | Free Spare Parts, Onsite Installation, Return and Replacement, Field Maintenance and Repair Service, Overseas Call Centers |
| Operating Language | English, German, French, Dutch, Spanish |
| Private Mold | Yes |
| Packaging Types | Corrugated Box, Color Box, Gift Box |
| Place Of Origin | Shandong, China |
| Brand | Haier Tianyu or OEM |
| Model Number | KFXRS-43IIF7ASU1 |
| Product Name | Air Source Full DC Inverter Commercial Heat Pump Water Heater |
| Keyword | Commercial Heat Pump Water Heaters |
| Compressor | Full DC Inverter Compressor |
| Power Supply | 380V 3N~50Hz |
| Operating Ambient Temperature Range | -20 ~ 50 |
| Maximum Outlet Water Temperature | 60℃ |
| Noise | 58dB(A) |
| Water Resistance Rating | IPX4 |
| Function | Commercial Hot Water |
| Selling Units | Single item |
| Single Package Size | 100X100X159 cm |
| Single Gross Weight | 265.0 kg |
Product Details
- 80% Energy Savings: Industry-leading 80% energy saving via refrigerant cycle, using free renewable energy for continuous comfortable hot water. Low power consumption, cost-effective.
- Full DC Inverter Technology: Synchronized compressor and fan control saves up to 80% energy versus traditional electric water heaters and beats Tier 1 standards by 6.6% — delivering eco-friendly, low-carbon performance that cuts costs and hassle.
- High-efficiency Heating: -20℃~50℃ working range. Eco-friendly R32 refrigerant ensures stable all-climate performance, no shutdown in frigid weather.
- Stable Up to 60°C Hot Water Output: Ample water capacity & top-layer priority hot water supply for multi-person bathing.
- 3rd-generation High-bridge Evaporator Fins: Double-sided multi-layer coating (lubricant, hydrophilic & anti-corrosion layers), dust & frost resistance for all-season efficient work.
- Smart Precision Defrost: Precise intelligent defrost, no extra energy waste.
- Anti-Ice Bottom Superheat: Optimized evaporator flow and layered throttling stop ice buildup for powerful, efficient heat exchange and worry-free hot water.
- Free Parallel Connection: Supports up to 16 units with advanced microcomputer central control — simple, worry-free management for large-scale hot water needs.
- Wi-Fi & 4G Dual Remote Connection: Remote ON/OFF, temp adjustment, mode shift, silent setting, auto water refill & zero cold water.
- Multi-Dimensional Noise Reduction: Six technologies — optimized fan, low-noise motor, triple-insulated compressor — for ultra-quiet operation. Quiet Mode cuts an extra 5–10 dB, delivering all-day silent comfort.
- Personal Protection: Leakage, safe grounding, current protection.
- Protection For All Components: Compressor, fan, sensor fault protection.
- System Protection: Anti-freeze, high/low pressure, backflow protection.
- Intelligent Control Protection: Memory chip, fault self-diagnosis protection.
- All-Scenario Ready: Designed to meet hot water needs across all scenarios, including hotels, hospitals, school/apartment dormitories, and swimming & fitness facilities.
- Top Blowing Air Discharge: Efficient heat distribution.


Model | KFXRS‑43IIF7ASU1 | |||||
Structural Form | Top-Blowing | |||||
Heating Capacity (A20/A7) | kW | 43/33 | ||||
Input Power (A20/A7) | kW | 9.15/8.46 | ||||
COP (A20/A7) | w/w | 4.7/3.9 | ||||
Water Output (A20/A7) | L/h | 926/618 | ||||
AHPF | kW·h | 4.2 | ||||
Energy Efficiency Rating | – | 1 | ||||
Power Supply | – | 380V 3N~50Hz | ||||
Max. Input Power | kW | 15 | ||||
Max. Input Current | A | 25 | ||||
Operating Ambient Temp. Range | ℃ | -20~50 | ||||
Max. Outlet Water Temp. | ℃ | 60 | ||||
Refrigerant | – | R32 | ||||
Heat Exchanger | Air-Side Heat Exchanger Type | – | Finned Heat Exchanger | |||
Water-Side Heat Exchanger Type | – | Tube‑in‑Tube Heat Exchanger | ||||
Water-Side Pressure Drop | kPa | 95 | ||||
Water Flow Rate | m³/h | 7.4 | ||||
Water Inlet/Outlet Connection | in | G1‑1/4" External Thread | ||||
Noise | dB(A) | 58 | ||||
Overall Dimensions | mm | 1000*1000*1590 | ||||
Net Weight / Gross Weight | kg | 218/229 | ||||
Floor Area | ㎡ | 1 | ||||
* Specifications subject to change without notice as products are continuously improved. Refer to the product manual for details. | ||||||




















































Ordering and Pricing
- Minimum order quantity: 20 piece
- Volume pricing:
- 20–49 piece: US $2950 / piece
- 50–99 piece: US $2900 / piece
- 100+ piece: US $2850 / piece
- Ships from: China
- Customization: OEM and ODM accepted on qualifying volumes.
Frequently Asked Questions
What is the minimum order quantity for this water heater?
The standard minimum order quantity is 20 piece. Trial orders can usually be arranged for buyers evaluating the product before a full production run.
What warranty is provided?
The manufacturer provides a 2 Years warranty. Spare parts and technical support remain available after the warranty period.
Can the water heater be supplied for my local voltage?
The standard configuration is 380V 3N~50Hz. Alternative voltage and frequency builds are available when specified at the time of order.
Do you accept OEM or custom branding?
Yes. Custom logo, colour, packaging and specification changes are accepted on qualifying order volumes. Send your artwork and technical requirements with your enquiry.
How long does production and delivery take?
In-stock configurations typically ship within 7–15 days. Customised or large-volume orders are usually produced in 25–35 days, confirmed on order.
About the Manufacturer
This product is produced by Qingdao Haier New Energy Electric Appliance Co., Ltd., based in China. The company 4 years as a verified Alibaba.com supplier, operates its own manufacturing, passed third-party supplier assessment. Browse the full Qingdao Haier New Energy Electric Appliance Co., Ltd. range on HVACR Nexus.
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