NIBE S1256 - Ground to water heat pump
Verified by manufacturer 3 months ago
S1256-8
S1256-8
Quiet Mark Certification
Certificate type
High efficiency, intelligent and powerful inverter controlled ground source heat pump in two output sizes.
Application
Indoor ground source heat pump unit with integrated Dhw cylinder. Particularly suitable for residential properties up to 4 bedrooms.
Description
NIBE S1256 is an intelligent and powerful inverter controlled ground source heat pump in two sizes. It provides optimum savings as the heat pump performs efficiently and automatically adapts to the property’s output requirements all year round.
It has a high seasonal coefficient of performance and an operating range of 1.5-13kW. With just over 0.5 tonnes CO2 equivalent refrigerant volume. The modulating compressor provides efficient output regulation and high reliability, making the heat pump suitable for most properties even with larger heating requirements.
A 173 litre Dhw tank is integral to the heat pump and is capable of producing up to 275l of hot water @40 degrees as per EN 16147. This positions the heat pump perfectly for installing in properties with up to 4 bedrooms.
Thanks to smart technology and an intuitive touch screen controller, the heat pump gives the user full control over energy consumption and the Intelligent controller automatically adjusts the indoor climate for maximum comfort & efficiency.
The S1256-8 PC variant of this product comes with all passive cooling accessories pre-built into the heat pump unit.
Features and benefits:
- Output sizes: 8 and 13 kW.
- Compact footprint with Integrated 173l hot water cylinder
- Highly efficient inverter controlled ground source heat pump in two sizes.
- Efficient output regulation and high reliability for lower running costs.
- Smart technology with user-friendly control for easy remote control.
- myUplink Smart app control capability
- Integrated underfloor drying function.
- Clear and easy to use touch screen controller.
- A wide range of system solutions and accessories.
- 1950 mm required ceiling height.
- Constructed on a robust frame with durable panels and high quality soundproofing for the best possible comfort. All panels are easy to remove to facilitate installation and for any servicing.
General information
Color | Silver Grey White |
Finish | Powder-coated |
Material | Aluminium Steel Brass Copper Stainless steel |
Shape | Rectangle |
Length | 620 mm |
Width | 600 mm |
Height | 1800 mm |
Warranty description | Two year Seven year |
Uniclass | |
CAWS | T90/525 Ground heat exchangers |
SKU Code | S1256-8, S1256-13 |
Specification data - Ground source heat pumps
Collector material | Black PE 100 to BS EN 12201-1, BS EN 12201-2, BS EN 12201-3, BS EN 12201-4 and BS EN 12201-5. Grey/ white PE-Xa to BS EN ISO 15875-1, BS EN ISO 15875-2, BS EN ISO 15875-3 and BS EN ISO 15875-5. |
Loop depth | Manufacturer guidanceMinimum 1m. Insert Requirements. |
Pipe diameter | 22 mm and 28 mm. Guidance for specification option: 22 mm – hot/ cold water connection pipe and heating medium CU pipes. 28 mm – brine CU pipe. |
Borehole diameter | Manufacturer guidanceInsert requirements. |
Temperature | Return temperature up to 58 °C and outgoing temperature of 70 °C. Guidance for specification option: Outgoing temperature of 65 °C with only the compressor. |
Accessories: | Active/passive cooling in 4-pipe system ACS 45. Guidance for specification option: Part no 067 195. Active/pasive cooling HPAC S40. Guidance for specification option: The accessory HPAC S40 is a climate exchange module that is to be included in a system with S1256. Part no. 067 624. Docking Kit PTV 40. Guidance for specification option: PVT 40 enables S1256 to use PVT-panels as brine-source. Part no. 057 245. External electric additional heat ELK. Guidance for specification option: These accessories require accessories cardAXC40 (step controlled addition).
Extra shunt group ECS. Guidance for specification option: This accessory is used when S1256 is installed in houses with two or more different heating systems that require different supply temperatures.
|
Energy rating | A+++. |
HeatingCapacity | 1.5–8 kW. |
HeatOutput | 7.5 kW to EN 14825. |
CoefficientOfPerformance | Cold climate: 5.95 at 35°C, 4.44 at 55°C; Average climate: 5.67 at 35°C, 4.26 at 55°C. |
Overall sound power level | 36–43 dB(A). Manufacturer guidanceTo EN 12102 at 0/35. |
SoundPressure | 21–28 dB(A). Manufacturer guidanceTo EN ISO 11203 at 0/35 and 1m range. |
Weight | 231 kg. |
Power output | Brine pump 2 - 75 W, heating medium pump 2 – 63 W. |
Flowrate | 0.43 L/s. Manufacturer guidanceBrine in 0°C / water out 45°C. |
Ancillary components | Outdoor temperature sensor, room sensor, o-rings, lever vessel (CM2), expansion vessel domestic hot water with holder (packed separately)(CM4), armoured hose (expansion vessel), filling hose (WN1), tundish (WM3), safety valve (FL3) 0.3 MPa (3 bar), pressure relief valve (QN17), Cold water shut off and expansion |
RatedVoltage | 230 V – 50 Hz. |
Refrigerant | R454B. |
Operating pressure (maximum) | 0.6 MPa. Manufacturer guidanceOf tap water. |
Supply pressure | 1.6 MPa. Manufacturer guidanceOf water (maximum). |
Temperature limiter | 89 °C. |
Type: | Ground – water heat pump. |
Sustainability data
Country of product manufacture | Sweden |
Manufacturing plant location | |
Material | Aluminium Steel Brass Copper Stainless steel Rubber |
Recyclability | It is possible to recycle materials for all, or parts, of the product. The refrigerant contents of the product should always be recovered prior to processing. Recycling of the product can be done through fragmentation where the insulation material goes to energy recovery and metals for recycling. |
Expected Life | 20 year |
BIM objects
| Platform | Compatible | Version |
|---|---|---|
 Revit | - | 1 |
Product certifications
Quiet Mark Certification
S1256 Quiet Mark
Literature
NIBE S1256 - Installer Manual
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