NIBE ground source heat pump

NIBE S1255

Ground source heat pump
  • Product information
  • Advantages

NIBE S1255 is an intelligent, inverter-controlled ground source heat pump with integrated water heater. NIBE S1255 provides optimum savings since the heat pump always performs efficiently and automatically adapts to your home’s heating demand all year round. NIBE is a leading player in the field of inverter technology, with many years’ experience of variable output ground source heat pumps and one of the widest product ranges on the market.NIBE S1255 has a high seasonal performance factor, resulting in minimal operating costs. The heat pump is available in three different output sizes: 1.5–6 kW, 3–12 kW and 4–16 kW, and is suitable for both small and large properties.With integrated wifi, the S Series is a natural part of your connected home. Smart technology adjusts the indoor climate automatically while you’re in complete control from your phone or tablet. Giving maximum comfort and minimum energy consumption, while doing nature a favour at the same time

High customization

Three output sizes and leading inverter technology for optimum customization.

Top performing

Optimal seasonal performance factor and minimal operating costs.

Maximal comfort

User-friendly touch control and integrated wireless connectivity with energy saving smart technology for maximum comfort.

  • Functions
  • Accessories
  • Technical data
  • Document
NIBE S1255-6
NIBE S1255-12
NIBE S1255-16

Extended functions

NIBE Smart Price Adaption

With Smart Price Adaption, the heat pump receives information about the electricity prices for the next 24 hours and then adapts the operation to these. The function is based on information about the hourly prices of the coming day from the electricity exchange NordPool Spot. The prices in combination with expected heating and hot water needs then automatically control the heat pump. This is in order to reduce energy costs and which in the long run contributes to a smaller environmental impact.

NIBE RMU S40

The NIBE RMU S40 is a room unit with 2,8” touch display with built in temperature and humidity sensors. It is used to control and monitor your NIBE S series heat pump/indoor module from another room in the house than the room where the heat pump is placed. The NIBE S Series is a natural part of your connected home. Smart technology adjusts the indoor climate automatically while you’re in complete control from your phone or tablet. Giving maximum comfort and minimum energy consumption, while doing nature a favour at the same time.

NIBE PVT

NIBE PVT 40 makes it possible for your heat pump to use NIBE PVT panels as a heat source. The heat pump regulates the temperature of incoming brine in the summer, and closes the shunt valve in the winter when the temperature reaches the set value.

NIBE ECS 40

ECS 40 is used when heat pump is installed in houses with up to four different climate systems that require different flow line temperatures, for example, in cases where the house has both a radiator system and an under floor heating system.

NIBE AXC 40

Accessory card. AXC 40 is used to enable connection and control of Mixing valve controlled additional heat, Pump for hot water circulation, Groundwater pump

NIBE ACS 45

Active/Passive cooling (4-pipe). ACS 45 combined with a heat pump is a climate control system for heating and cooling houses and apartment buildings.

NIBE ECS 41

Extra heating circuit (recommended 80-250 m2 floor heating). ECS 41 is used when heat pump is installed in houses with up to four different climate systems that require different flow line temperatures, for example, in cases where the house has both a radiator system and an under floor heating system.

NIBE EF 45

Extension frame.

NIBE HR 10

Auxiliary relay HR 10 is a connection box housing a contactor and a rotary selector switch. It is used to control external 1 to 3-phase loads such as oil burners, immersion heaters and pumps.

NIBE HTS 40

HTS 40 is an accessory that records humidity and temperature.

NIBE KB 25

Combination valve for filling up the brine. Including insulation. For heat pumps max. 12 kW.

NIBE HPAC S40

Combine with your NIBE S Series heat pump for passive or active cooling. It will keep you cool even while your system is continually heating hot water.

NIBE PCM S40

The NIBE PCM ground source accessory makes it possible to obtain passive cooling from rock, groundwater or surface soil collectors. Combine with your S Series heat pump for a flexible system. Even while your system is continually heating hot water it will cool your home. NIBE PCM is controlled via the heat pump’s touch control, where both settings and monitoring are handled with an easy swipe. The NIBE S Series is a natural part of your connected home. Smart technology adjusts the indoor climate automatically while you’re in complete control from your phone or tablet. Giving maximum comfort and minimum energy consumption, while doing nature a favour at the same time.

NIBE PCM S42

The NIBE PCM ground source accessory makes it possible to obtain passive cooling from rock, groundwater or surface soil collectors. Combine with your S Series heat pump for a flexible system. Even while your system is continually heating hot water it will cool your home. NIBE PCM is controlled via the heat pump’s touch control, where both settings and monitoring are handled with an easy swipe. The NIBE S Series is a natural part of your connected home. Smart technology adjusts the indoor climate automatically while you’re in complete control from your phone or tablet. Giving maximum comfort and minimum energy consumption, while doing nature a favour at the same time.

NIBE NV 10

Level monitor of brine collector circuit.

NIBE PCS 44

Passive cooling. PCS 44 is used when heat pump is installed in an installation with passive cooling.

NIBE PLEX 310-20

Tap water exchanger.PLEX is a plate heat exchanger with plates manufactured from acid-resistant steel (SS 23 43). PLEX is available in seven different models. Insulation, consisting of two 30 mm-thick, moulded halves of polyurethane foam, corresponding to approx. 70 mm mineral wool, is included. The surface is covered by ABS plastic.

NIBE PLEX 310-40

Tap water exchanger.PLEX is a plate heat exchanger with plates manufactured from acid-resistant steel (SS 23 43). PLEX is available in seven different models. Insulation, consisting of two 30 mm-thick, moulded halves of polyurethane foam, corresponding to approx. 70 mm mineral wool, is included. The surface is covered by ABS plastic.

NIBE KB 32

Combination valve for filling up the brine. Including insulation.

NIBE POOL 40

An accessory that allows pool heating using heat pump. Max 17 kW. The heat pump controls the reversing valve, pool circulation pumpand any heating circuit circulation pumps via POOL 40.

NIBE FLM S45

The NIBE FLM S45 is an exhaust air module with built-in fan, specially designed for combining recycling of mechanical exhaust air with a NIBE ground source heat pump, providing an integrated solution for ventilation, hot water and heating. The NIBE FLM S45 has a high fan capacity and low noise level. Energy is recovered from the ventilation air; even when the heat pump is not in operation, energy is stored in the ground or soil collector and exhaust air energy is thus put to maximum use.

This accessory is used for the wall mounting of NIBE's compatible products SAM 40, SAM 41, FLM, F135 and Split installation of F730/F750

NIBE BAU 10

This accessory is used for the wall mounting of: SAM 40, SAM 41, FLM, F135

NIBE EME 20

Communication and control. EME 20 is used to enable communication and control between the inverter for solarcells and heat pump/indoor module/control module.

NIBE ERS S10-400

The NIBE ERS S10-400 is a heat recovery ventilation unit with high temperature efficiency up to 92% and low energy consumption. The heat recovery ventilation unit is used in houses with areas up to approx. 300 m2.The NIBE ERS S10-400 is designed for installation with a NIBE ground source heat pump or a NIBE air/water heat pump for a complete heating and ventilation system. The heat recovery ventilation unit is easily controlled by the heat pump. The NIBE S Series is a natural part of your connected home. Smart technology adjusts the indoor climate automatically while you’re in complete control from your phone or tablet. Giving maximum comfort and minimum energy consumption, while doing nature a favour at the same time.

NIBE ERS S40-350

The NIBE ERS S40-350 is a heat recovery ventilation unit with low energy consumption, a level of efficiency up to 85%, a built-in humidity sensor and a reheater. Thanks to the rotating heat exchanger, the moisture in the exhaust air is also recycled. The moisture in the air is recycled. The heat recovery ventilation unit is used in houses up to 250 m2 and can even be placed in cold spaces. NIBE ERS S40-350 is delivered in left-hand version with regard to duct connection, but can also be converted to right-hand version.

NIBE ERS 30-400

The NIBE ERS 30-400 is a heat recovery ventilation unit with high temperature efficiency up to 94% and low energy consumption. The heat recovery ventilation unit is used in houses with areas up to approx. 350 m2. The NIBE ERS 30-400 is designed for installation with a NIBE ground source heat pump or a NIBE air/water heat pump for a complete heating and ventilation system. The heat recovery ventilation unit is easily controlled by the heat pump. Thanks to smart technology, the product gives you control over your energy consumption and will be a key part of your connected lifestyle. The efficient control system automatically adjusts the indoor climate for maximum comfort, and you do nature a favour at the same time.

NIBE Top cabinet 245 mm

Top cabinet

NIBE Top cabinet 345 mm

Top cabinet

NIBE Top Cabinet 395-635 mm

Top cabinet

Height (mm)

1800

Depth (mm)

620

Net weight (kg)

220

Product efficiency class room heating, 55 °C

A+++

Refrigerant amount, CO2 equivalent (ton)

2,06

User manual
Installer manual
Product leaflet
Product catalogue NIBE S Series heat pumps
Product catalogue Ground source heat pumps
Energy Labels NIBE S1255-16
Energy Labels NIBE S1255-12
Energy Labels NIBE S1255-6
Consumer information leaflet Smart home accessories for the NIBE S-series
Consumer information leaflet NIBE F1255
Wiring diagram