Hotjet ONE2 Heat Pump
- Type: Air-to-water
- Output: 15–40 kW
- Installation: Outdoor or indoor
- Regulation: On/off (no inverter)
- Operation: Heating, cooling, DHW
- Control: SIEMENS
HOTJET ONE2 – high output for large buildings
When you need more than 15 kW, the ONE2 delivers. On/off control (no inverter) – simple, proven technology for larger heating systems. Variants from 20 to 45 kW, cascade up to 16 units combined.
The ONE2 installs outdoors or indoors. Monoblock design – no split, no field refrigerant piping.
Why ONE2
- 20–45 kW – from large family houses to apartment buildings and commercial properties
- On/off control – simple, reliable, field-proven
- Cascade up to 16 units – hundreds of kW from a single system
- EVI injection – higher output even at low ambient temperatures
- Outdoor or indoor installation – depending on building layout
Power Variants
| Model | Heat loss | Heating output A7/W35 |
|---|---|---|
| ONE2-20 | up to 20 kW | 18.8 kW (COP 4.5) |
| ONE2-25 | up to 30 kW | 30 kW (COP 4.3) |
| ONE2-35 | up to 35 kW | 33.6 kW (COP 4.58) |
| ONE2-45 | up to 40 kW | 40.2 kW (COP 4.42) |
Who is it for
Apartment buildings, schools, office buildings, production halls – anywhere you need reliable output and straightforward maintenance. By cascading units, you can cover buildings with heat losses over 100 kW.
| Type | Air-to-water |
|---|---|
| Output | 15–40 kW |
| Installation | Outdoor or indoor |
| Regulation | On/off (no inverter) |
| Operation | Heating, cooling, DHW |
| Control | SIEMENS |
| ONE2 | ONE2 20 | ONE2 25 | ONE2 35 | ONE2 45 |
|---|---|---|---|---|
| Compressor | Scroll on/off | |||
| Models | ONE2 20 / ONE2 25 / ONE2 35 / ONE2 45 | |||
| Suitable for heat losses | up to 20 kW | up to 30 kW | up to 35 kW | up to 40 kW |
| Heating output / COP A7/W35 | 18.8 kW / 4.5 | 30 kW / 4.3 | 33.6 kW / 4.58 | 40.2 kW / 4.42 |
| Heating output / COP A2/W35 | 15.6 kW / 3.7 | 22.2 kW / 3.4 | 28 kW / 3.8 | 33.6 kW / 3.7 |
| Heating output / COP A-7/W55 | 12.3 kW / 2.2 | 22 kW / 2.1 | 24 kW / 2.2 | 29.2 kW / 2.14 |
| EVI injection | YES | |||
| Cascade connection | Max. 16 heat pumps | |||
| Fan (electronically controlled) | 630 mm | 800 mm | 900 mm | 900 mm |
| Sound power LWA A7/W35 | 67 dB | 71.5 dB | 73.5 dB | 76.5 dB |
| Sound pressure LpA at 5m | 48 dB | 52.5 dB | 54.5 dB | 57.5 dB |
| Energy class 35°C / 55°C | A++/A+ | A++/A++ | A++/A+ | A++/A+ |
| Weight | 205 kg | 250 kg | 350 kg | 370 kg |
| Dimensions (w × d × h) | 1270×500×1210 | 1620×600×1480 | 1720×700×1680 | 1720×700×1680 mm |
| SVT code for subsidies | 20: SVT6168 | 25: SVT6169 | |||
