heat pump storage tank

Type WPS


Produktbeschreibung

Maximum energy efficiency of heat pumps with stratified cylinder and fresh water station

Stratified cylinder suitable for heat pump use in detached houses and apartment buildings, optionally with electric heating via electric screw-in heating element. Hot water preparation is carried out with the separately available Sailer fresh water station FRIWASTA-Plus for maximum efficiency.

Advantages of the “WPS” heat pump storage tank:

  • Space-saving
  • Simple hydraulics
  • Less assembly and piping work
  • Shorter loading times
  • Hygienic hot water preparation via FRIWASTA-Plus fresh water stations
  • Lowest flow temperatures (spread 3 K) for DHW heating in conjunction with FRIWASTA-Plus fresh water stations
  • Energy saving

WPS” heat pump storage tank - for detached houses and apartment buildings


Standard scheme WPS


Further product information


Sailer heat pump cylinders make optimum use of temperature levels!

Sailer heat pump storage tanks are characterized by innovative technology that
efficient use of different temperature levels. The precise adaptation to the temperature ranges of the heat generator allows low-loss and efficient storage of the heat generated. This not only supports the optimum operation of the heat pump, but also promotes the integration of renewable energies.

Sailer heat pump storage tanks minimize operating costs

The intelligent design of the Sailer heat pump storage tank minimizes operating costs
and maximizes the overall efficiency of the heating system. This technological sophistication enables the sustainable and environmentally friendly use of thermal energy and the “WPS” heat pump storage tanks from Sailer offer an energy-efficient and space-saving solution for efficient heating systems. 

Hot water and heating operation

Thanks to the stratified charging technology, water can be stored in a “WPS” cylinder both via high-temperature charging for DHW heating and via low-temperature charging for heating operation.

Bivalent operation

The “WPS” heat pump storage tanks are designed for the simultaneous operation of several heat generators, for example a combination of peak load boiler and heat pump.

Preparation for electric heating cartridges

Every “WPS” heat pump storage tank has at least two connections for electric heating cartridges as standard. If required, all areas in the “WPS” can be heated electrically.


Technical data

Stratification charging device: For heat pump loading (HT/NT) 4 m³/h (from 1500 l 8 m³/h), RL FRIWASTA-Plus 4 m³/h* (from 1500 l 8 m³/h), return heating circuit (from 1500 l 8 m³/h). Max. Operating pressure 3 bar (XXL 2.5 bar). Max. Max. operating temperature 110 °C. Heating connections: 9 sockets 5/4“, 1 socket ½” for dial thermometer, 2 sockets 1½“ for electric cartridges (from 1500 l 3 sockets 1 ½”. 2 elbow pipes for full utilization of the storage tank volume. ½” sockets for venting and draining. Sensor terminal strip.

Scope of delivery

Ready-to-connect cylinder with three (four from 1500 l) Sailer stratified charging units and 2(3) connections for electric screw-in heaters. Storage tanks up to 1500 LiteR (except XXL) are supplied including a base plate for mounting the support set for FRIWASTA fresh water stations from 30 to 100 l/min.

Sailer Heat Pump Storage Tank (WPS)


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