TacoSol Load Exa L

Connection-ready storage loading station for efficiently transferring heat from solar energy to large installations


  • The ready-to-connect TacoSol Load Exa L is both a solar energy station and a loading module combined in a single unit. It has been designed to load one or two storage tanks via a solar heating energy system according to the flow temperature on a zone-specific basis. The solar energy gained is transferred via a high-efficiency stainless steel plate heat exchanger to the storage tank(s).
  • The storage loading station is suitable for collector surfaces of up to 240 m².



  • Equipped with all the necessary valves and components, ideally complements the TacoTherm Fresh Exa C fresh 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 solar energy is transferred to the storage tank(s) by means of a highly efficient stainless steel plate heat exchanger
  • The preset, user-friendly controller uses rotational speed regulation to adjust the primary and secondary pump for ensuring optimum temperature differentials for loading the storage tank(s)
  • The controller regulates the three-way switching valve to operate either storage inflow 1 or 2, thereby enabling optimal dual-zone supply in the storage unit

Technical Data


  • TSL EXA L Controller
  • Weight (empty): 135 kg
  • Overall dimensions (overall dimensions of hood): W 1176 mm × H 746 mm × D 316 mm

Primary side

  • Operating temperature TO max: 110 °C
  • Operating pressure PO max: 8 bar
  • DN25 safety valve (intrinsic safety) with 8 bar discharge pressure
  • Primary pump: Wilo Stratos Para 30/1-12 (0-10 V)
  • Ventilator group with integrated shutoff, filling, purging and drainage facility

Secondary side

  • Operating temperature TO max: 110 °C
  • Operating pressure PO max: 3 bar
  • Temperature and flow rate sensor integrated in the return line, measurement range: 10 to 200 l/min
  • DN25 safety valve (intrinsic safety) with 3 bar discharge pressure
  • Wilo Stratos Para 30/1-12 (0-10 V)
  • Switching valve DN 32 (optional)
  • TacoSetter Bypass (optional)

Power consumption

  • Circulating pump (primary): 16 - 310 W

Electrical connection data

  • Mains voltage: 230 VAC ± 10 %
  • Mains frequency: 50...60 Hz
  • Protection type: IP 40


  • Design hood made from galvanized sheet metal, powder-coated
  • Pumps: Cast iron
  • Valve housing: Brass
  • Pipes: Stainless steel 1.4404
  • Plate heat exchanger: Stainless steel
  • Plates and connector pieces: Stainless steel 1.4401
  • Solder: 99.99 % copper
  • Seals: AFM 34

Flow Media

  • Heating water (VDI 2035; SWKI BT 102-01; ÖNORM H 5195–1)
  • Cooling water (DIN 1988-7)
  • Water and proprietary additives used against corrosion and freezing (see document «Correction curves»)

Building categories

  • Apartment blocks, multiple dwelling units
  • Residential care facilities and hospitals
  • Administration and service buildings
  • Hotels and restaurants, industrial kitchens
  • School buildings and sports facilities
  • Industrial buildings and systems

Type Overview

TacoSol Load Exa L (TacoSol Load 240)

Ready-to-connect storage unit loading station For large systems for the stratified loading of one or two storage units by means of a solar thermal energy system
Order no. Description
275.5561.000 Standard version
275.5561.382 Standard version thermally insulated