Electric Tankless Water Heater 18kW 3N – A3
Three-Phase Electric Tankless Water Heater for Whole-House Multi-Point
- True water-electricity separation heating for safety
- 3s instant heating & 98.4% high heat efficiency
- ±1℃ precise temperature & flow control system
- 4 modes one button switch – Fitness, children, elderly, intelligent
- High output continuous multi-point hot water supply
- 12 safety protections – overheating, dry heating, overpressure, leakage etc.
OEM/ODM Available
Experience reliable, Electric Tankless Water Heater with Piano’s patented heating technology.
A3 deliver 3s heating, 8s rise by 20℃, ultra-long life patented heating element, true water-electricity separation heating for safety, and 98.4% high heat efficiency by unique M-type heating tube, no water scale and any leakage. Adopt intelligent control system, make the temperature and water flow more accurate and stable ±1℃. Fast response in low inlet temperatures for cold climates. Unique anti-freezing design make machine performance more stable. Stylish and durable tempered glass panel. Each model has 12 safety protections. Compact save space and easy to install.
Technical Specifications
| Rated Power | 18kW |
| Rated Voltage | 380V 50/60Hz 3Phase |
| Rated Pressure | 0.02-0.6MPa |
| Rated Current | 31.8A |
| Water Flow (Min) | 2L/min (0.53Gpm) |
| Heating Element | Cast Aluminum |
| Housing Material | Tempered Glass Panel + High-Quality ABS |
| Control Mode | Touch Screen |
| Display Mode | LED Digital Temperature |
| Temperature Range | 25-55°C (77-131℉) |
| Waterproofing Grade | IPX4 |
| Wire Requirement | 5×4mm² (12AWG) |
| Pipe Section | G1/2″ |
| Circuit Breaker | 1×32A |
| Electricity Meter | 3×10(40)A |
| Product Net Weight | 8.3kg (18.3lb) |
| Product Size (L.W.D.) | 505×305×85 mm (19.9×12×3.3 in） |
| Mounting Type | Wall Mount (Vertical) |
| Color Options | Black / Gray |
Applications
- Residential bathrooms (apartments and villas)
- Hotels, resorts, and spas
- Fitness centers and gyms
- Office and staff dormitory showers
- Commercial kitchens and laundry facilities
OEM/ODM services
Piano provides full OEM/ODM support including design customization, heating core technology sharing, and flexible branding options. We welcome global distributors and project partners to build long-term cooperation.
