The Nefit 9700i is future-ready: internet-capable, prepared for hybrid systems, and designed for a mix of natural gas and hydrogen. The modern boiler can be combined with a room thermostat of your choice, such as the wireless internet thermostat CR20 RF with the Bosch HomeComfort app, or the smart Bosch EasyControl thermostat with the EasyControl app. This allows you to easily regulate the temperature in each individual room of your home.
New Low Energy-High Performance Pump
The 9700i is up to 75% more efficient thanks to its high modulation range. The high hydronic efficiency ensures maximum efficiency. Additionally, the intelligent speed control is based on both the unit’s power and the pressure difference, which results in optimal performance.
Details:
Technical Specifications
| Feature | Value |
|---|---|
| Brand | Nefit |
| Supplier Code | 7736702502 |
| EAN Code | 4062321878931 |
| Discount Group | 008 |
| Width | 520 mm |
| Height | 730 mm |
| Depth | 425 mm |
| Number of Phases | 3 |
| Energy Efficiency Class | A |
| Flow Connection | External Thread |
| Return Connection | External Thread |
| Frequency | 50 Hz |
| Connection Voltage | 230 - 230 V |
| Closed Design | Yes |
| Energy Efficiency of Water Heating (Nwh) | 98 % |
| Capacity Profile | XL |
| Max. Hydrogen Percentage in Gas Mixture | 20 % |
| Suitable for Low-Calorific Gas | Standard factory setting |
| Suitable for High-Calorific Gas | Manually adjustable |
| Suitable for Propane | With conversion kit, not included |
| Suitable for Butane | Not suitable |
| Suitable for Methane | Not suitable |
| Suitable for LPG | With conversion kit, not included |
| Suitable for Hydrogen | Manually adjustable |
| Heat Exchanger Material | Aluminum |
| Built-in Pump Switching | Yes |
| Nominal Load Upper Value | 23.3 kW |
| Min. Working Pressure | 0.8 bar |
| Min. Return Temperature | 7 °C |
| Max. Gas Supply Pressure | 30 mbar |
| Built-in Weather Dependent Controller | Yes |
| Built-in Expansion Vessel | Yes |
| Nominal Output at 80-60 °C | 23.6 kW |
| Max. Flow Temperature (Operating Temperature) | 82 °C |
| Max. Working Pressure | 3 bar |
| Built-in Fill/Drain Valve | No |
| Built-in Overpressure Valve | Yes |
| External Pipe Diameter Flow | 25 mm |
| External Pipe Diameter Return | 25 mm |
| Fuel Connection | External Thread |
| External Pipe Diameter Fuel | 15 mm |
| Air Supply Connection | Push-fit connection |
| Nominal Pipe Diameter Air Supply | 80 mm |
| Flue Gas Outlet Connection | Push-fit connection |
| Condensate Connection | Flexible |
| External Pipe Diameter Condensate | 30 mm |
| Min. Gas Supply Pressure | 20 mbar |
| Nominal Pipe Diameter Flue Gas Outlet | 80 mm |
| Burner Control High/Low | Yes |
| Modulating Burner Control | Yes |
| Built-in Manometer | No |
| Condensing | Yes |
| Efficiency | 109.6 % |
| Pilot Flame | No |
| Second Return Connection | No |
| On/Off Control Signal | Yes |
| High/Low Control Signal | No |
| 0-10V Control Signal | No |
| Open Therm Control Signal | No |
| Operation as Open Design (Air Supply) Possible | Yes |
| Nominal Output at 50-30 °C | 25 kW |
| Nominal Pipe Diameter Flow | 1" (25 mm) |
| Nominal Pipe Diameter Return | 1" (25 mm) |
| Nominal Pipe Diameter Fuel | 1/2" (15 mm) |
| Nominal Pipe Diameter Condensate | Other |
| CW Label | 4 |
| Gaskeur HR | Yes |
