The NIBE S2125 is an intelligent, inverter-controlled air/water heat pump. In combination with the indoor units, it automatically regulates the power requirement throughout the year and forms an efficient climate system. Thanks to the natural refrigerant R290, it is particularly environmentally friendly.
Type | 10035 | 10070 | 10105 | 10140 | |
|---|---|---|---|---|---|
Power range min. / max. at A2/W35 | kW | 10 - 35 | 10 - 70 | 10 - 105 | 10 - 140 |
Heating capacity / COP at A-7/W35 full load | kW / COP | 32.49 / 2.88 | 64.98 / 2.88 | 97.47 / 2.88 | 129.96 / 2.88 |
Heating capacity / COP at A2/W35 Nominal | kW / COP | 18.40 / 4.58 | 38.00 / 4.58 | 58.40 / 4.58 | 79.00 / 4.58 |
Cooling capacity / EER according to EN 14511 at A35/W18 | kW / COP | 30.13 / 4.63 | 60.2 / 4.62 | 90.27 / 4.62 | 120.33 / 4.62 |
SCOP according to EN14825 at 35°C / 55°C | 5.82 / 4.36 | 5.81 / 4.35 | 5.80 / 4.34 | 5.80 / 4.34 | |
Energy efficiency according to EU 811/2013 35°C / 55°C | A+++ / A+++ | A+++ / A+++ | A+++ / A+++ | A+++ / A+++ | |
Sound power according to ERP EN 12102 at A7/W35 | db (A) | 49 | 52 | 54 | 55 |
Sound power at A2/W35 | db (A) | 59 | 62 | 64 | 65 |
Refrigerant / Contents | / kg | R290 / 3.75 | R290 / 2x3.75 | R290 / 3x3.75 | R290 / 4x3.75 |
Dimensions H x W x D | mm | 1575 x 1575 x 960 | 3375 x 1683 x 960 | 5000 x 1683 x 960 | 6625 x 1683 x 690 |
Weight | kg | 482 | 1102 | 1630 | 2080 |
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The heat pump extracts thermal energy from the ambient air. The refrigerant absorbs this heat in the heat exchanger (evaporator) and is then compressed in the compressor. The heat generated in this process is used for heating and hot water production via another heat exchanger. In summer, the cycle can also be used for cooling by reversing the process.
The heat pump extracts thermal energy from the ground using a geothermal probe or groundwater. The refrigerant absorbs this heat in the heat exchanger (evaporator) and is then compressed in the compressor. The heat generated in this process is used for heating and hot water production via another heat exchanger. In summer, the cycle can also be used for cooling by reversing the process.
Heat pumps are suitable for both and can therefore be used in new buildings and old buildings undergoing renovation. With the latest generation of heat pumps, flow temperatures of up to 70° can be achieved.
However, it may be worth replacing or adding new radiators with a larger heating surface area in order to increase the efficiency of the heat pump. Seek advice from a specialist. In general, energy-saving measures should be considered for the building envelope in order to directly reduce the heat demand and thus reduce the flow temperatures and increase the efficiency of the heat pump.
Yes, because all our heat pump systems are designed for the design temperature. However, there are some differences between the various heat pump systems that need to be taken into account:
Air/water heat pumps:
Air/water heat pumps have a lower operating limit (approx. -25°C). For heating systems, this means that the heat output is guaranteed up to the design temperature (in the Swiss Plateau, for example, at -7°C). If the outside temperature falls below this design temperature, the auxiliary heating can switch on automatically. Statistically speaking, however, this is extremely rare.
Brine/water heat pumps:
With brine/water heat pumps, it is important to dimension the geothermal probes correctly. The geothermal energy at depth is constant and changes only minimally, even if the top layer of soil is frozen.
A heat pump with a COP of 5 requires 1/5 of the total energy produced in the form of electrical energy, while 4/5 of the energy is obtained from the environment (ambient air, geothermal probe, etc.).
The COP is highly dependent on the source temperature and the flow temperature. The higher the source temperature and the lower the flow temperature, the higher the COP and the energy efficiency.
In combination with a PV system, the amount of electricity consumed can be increased and energy costs reduced.
The sound insulation of heat pumps can be improved through structural measures. The most important measure is to physically decouple the heat pump from the house. Pipes must also be physically decoupled using suitable mounting systems. Sound insulation hoods or sound insulation walls can also significantly reduce noise levels.
Heat pumps are generally very low-maintenance. However, a heat pump should not be neglected. Contamination on the outdoor unit or in the heating circuit, incorrect settings, incorrect heating curves, etc. can damage the heat pump or reduce its efficiency. Periodic maintenance is therefore always beneficial and extends the service life.
The NIBE S2125 has a high seasonal coefficient of performance (SCOP)*, which results in low operating costs for heating and warm water. The operating range allows a supply temperature of up to 75°C. At an outside temperature of down to -25°C, it still delivers up to 65°C, while the noise level remains extremely low. The standard active cooling ensures greater comfort in summer temperatures. The NIBE S2125 is available
in two output sizes. Together with the indoor units of the NIBE S series with integrated WiFi connection, the NIBE S2125 becomes a central component
of your networked home. The intelligent technology automatically regulates the indoor climate, while you have full control of your heat pump via your smartphone or tablet.
R290 (propane) is a natural refrigerant with a GWP (global warming potential) of 3. R290 is therefore very environmentally friendly because it does not damage the ozone layer or contribute to the greenhouse effect.
The NIBE S2125 is reversible and can therefore also be used for cooling. This is a pleasant bonus, especially in summer temperatures.
We strive to maximize the capacity of every single NIBE product while considering the system as a whole to create a complete comfort system. That is why we offer a wide range of intelligent, highly efficient products for cooling, heating, and supplying hot water to your home. By harnessing the power of nature, you can create a perfect indoor climate with minimal impact on the environment.
