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The Nefit Bosch Compress 3400i split air-to-water heat pumps offer high-quality technology at the price of an entry-level model. There are both fully gas-free and hybrid variants with power outputs ranging from 4 to 14 kW. The compact hybrid indoor unit allows integration with an existing high-efficiency boiler and central heating system. In this hybrid solution, hot water is supplied via the boiler.
With the Compress 3400i AWS, you can control your heating easily and efficiently. The device’s display allows for simple adjustment of all settings. Additionally, the Bosch HomeCom Easy App enables convenient room temperature control via your smartphone or tablet.
The new Compress 3400i AWS offers maximum comfort and ensures highly efficient heating, cooling, and hot water supply. With this smart heat pump, you invest in future-proof technology for a comfortable indoor climate. This heat pump qualifies for subsidies—check the subsidy guide for the latest available grants.
| Feature | Value |
|---|---|
| Brand | Bosch |
| Supplier Code | 8732952515 |
| EAN Code | 4062321567835 |
| Discount Group | 055 |
| Model | Indoor Unit |
| Control Type | Weather-dependent control |
| Indoor Unit Width | 246 mm |
| Indoor Unit Height | 758 mm |
| Indoor Unit Depth | 350 mm |
| Indoor Unit Weight | 20 kg |
| Solar Integration | No |
| Remote Control Available | Yes |
| Operating Voltage | 230 V |
| Max. Heating Flow Temperature | 75 °C |
| Data Transfer via USB | No |
| Pipe Diameter for Tap Water | 22 mm |
| Suitable for Auxiliary Heating (CH System) | Yes |
| Boiler Control | Yes |
| Buffer Tank Control | Yes |
| Adjustable Electric Heating Power | No |
| External Control Required | No |
| External Pressure of System Pump at Nominal Flow | 3 bar |
| Data Transfer via Bus Connection | No |
| Pump Type (System Pump) | Energy-saving |
| Pump Voltage (System Pump) | AC |
| Pump Speed Control | Built-in |
| Pump Speed Regulation Type | Automatically regulated on ΔT |
| Soft Starter Built-in | No |
| Max. Electrical Power Consumption Limitation | 16 A |
| Suitable for Active Cooling | No |
| Indoor Unit Sound Power Level (EN 12102 at 0/35 °C) | 41 dB(A) |
| Indoor Unit Sound Pressure Level (EN 12102 at 0/35 °C, 1m distance) | 41 dB |
| Global Warming Potential (GWP) | 675 |
| Energy Efficiency Class (Space Heating 811/2013/EU) | A+++ |
| PED Category (2014/68/EU Compliance) | 1 |
| Nominal Suction Pipe Diameter | 5/8" |
| Swimming Pool Control | No |
| Nominal Diameter for Central Heating | 22 mm |
| Max. Tap Water Pressure | 3 bar |
| Suitable for Domestic Hot Water Production | Yes |
| Room Temperature Control | Yes |
| Suitable for Swimming Pool Heating | No |
| Includes Electric Heating Element | No |
| Refrigerant Type | R32 |
| Fuse (Slow-blow) | 16 A |
| Nominal Liquid Line Diameter | 1/4" |
| Max. Pipe Length | 30 m |
| Cooling Function Integrated | No |
| Nominal Flow Rate of Heat Emission System | 0.13 l/s |
| Max. Operating Pressure of Heat Emission System | 3 bar |
| External Pipe Diameter for Heat Emission System | 22 mm |
| Internet Data Transfer | Yes |
| Control of Multiple Heat Distribution Systems Possible | Yes |
| Optimization Type | Room Thermostat |
| Modulating Compressor | Yes |
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