TacoSol Load Tera L

Connection-ready storage loading station for efficient thermal transfer of solar energy with and without dual-zone loading of the storage tank


The TacoSol Load Tera L storage loading station performs the zone-based loading of one or two storage tanks via a thermal solar installation according to the available flow temperature.



  • Equipped with all the necessary valves and components, ideally complements the TacoTherm Fresh Tera C fresh hot water station


  • Intrinsic safety of the system thanks to an integrated safety subassembly


  • Station is fully preassembled and supplied with ready-to-connect wiring


  • Highly efficient system operation due to permanent air separation, use of high-efficiency pumps as well as maximum solar yield from the roof owing to the possible dual-zone loading of the storage tank.


  • The TacoSol Load Tera L is a compact, zone-based loading station equipped with EPP design insulation for loading one or two storage tanks by means of a solar system.
  • The solar energy recovered is transferred via a high-efficiency stainless steel plate heat exchanger to the storage tank(s). The innovative preset controller undertakes the task of ensuring optimal return supply to the storage tank(s) by regulating the speed of the primary pump.
  • The controller actuates the three-way switching valve, serving either storage return I or II. This ensures optimal zone loading within the storage tank.

Technical Data


  • Controller with display
  • Weight (empty): approx. 25 kg
  • Overall dimensions (incl. hood): W 656 mm × H 930 mm × D 197 mm

Primary side

  • Max. operating temperature TO max
    • flow: 110 °C
    • return: 95 °C
  • Max. operating pressure PO max: 6 bar
  • Primary pump: WILO Stratos Para 15/1-7
  • Ventilator group with integrated shutoff, filling, flushing and drainage facility
  • Safety valve 6 bar

Secondary side

  • Max. operating temp. TO max: 110 °C
  • Max. operating pressure PO max: 3 bar
  • Measuring range of temperature gauge and flow meter: 2 – 40 l/min
  • WILO Yonos Para 15/7.5 PWM
  • Zone switching valve DN 25

Electrical connection data

  • Mains voltage: 230 VAC ± 10 %
  • Mains frequency: 50...60 Hz
  • Power consumption: max. 180 W
  • Fuse 2 AT
  • Protection type: IP 40


  • Designer hood made from EPP with plastic surround
  • Pumps: Cast iron
  • Valve housing: Brass
  • Pipes: DN 20, stainless steel 1.4404
  • Plate heat exchanger: Stainless steel
  • Plates and connector pieces: Stainless steel 1.4401
  • Solder: 99.99 % copper
  • Seals: AFM 34, flat sealing

Flow Media

  • Heating water (VDI 2035; SWKI BT 102-01; ÖNORM H 5195–1)
  • Typical glycol mixtures up to 40%

Building categories

  • Single family homes, multiple dwelling units
  • Hotels and restaurants
  • School buildings and sports facilities
  • Commercial and industrial buildings, industrial facilities

Type Overview

TacoSol Load Tera L (TacoSol Load HE)

Storage tank loading station with high-efficiency pumps
Order no. Rp " Version Equipment
271.5522.000 1" IT L With dual-zone loading