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SKU ra/90.02.0070

Ratiotherm Fresh Water System FWS-4 Buffer PV Ready - 200lt & 400lt

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Made to Order - Contact us for lead time / price  01985 850 982

The Ratiotherm Fresh Water System FWS-4 Buffer PV Ready is a solar PVT ready buffer, designed for 200lt & 400lt systems. It is a reliable and efficient solution for storing and heating fresh water, helping you save on energy costs and reduce your environmental impact.

FWS-  combines the advantages of fresh water technology in terms of hygiene and comfort with the advantages of a larger buffer volume of the heating system, as the boiler has to start much less frequently and therefore less fuel is required.

The advantages of the fresh water system FWS-4/200 at a glance:

  • Compact unit pre-assembled and insulated for minimal losses
  • Additional buffer volume reduces the number of burner starts required, thus saving energy
  • Quickly and reliably heats exactly as much water as is needed
  • Extremely short reaction time with fresh water requirement
  • Constant power control even with fluctuating power outputs
  • For efficient, hygienic hot water preparation (boiler replacement)
  • In storage sizes 200 and 400 liters
  • For connecting a heat generator on both sides
  • With the option to retrofit an E-bar (e.g. ATON)

Consisting of

  • Efficiency buffer storage EPS with mounting socket
  • 1½” sleeve for optional E-rod, insulation class “A”
  • Storage insulation class “A”
  • Drinking water compact station 70 kW - without pre-control valve
  • Universal controller rUVR610 with display

Available in 2 capacities - Contact us for Price 

  • ra/90.02.0070 -  Fresh Water System 200 Lt / Frisch-Wasser-System FWS-4/200
  • ra/90.04.0070 -  Fresh Water System 400 Lt / Frisch-Wasser-System FWS-4/400

Optional accessories

  • ra/28.90.5701 -  Pre-control valve for TWK (calcification protection) / Vorregelventil für TWK (Verkalkungsgsschutz)

  • ra/32.90.6007 - ATON - control unit and modulating 3 kW heating element /   ATON - Steuergerät und modulierender 3 kW Heizstab

  • ra/32.90.5301-1 -  Drinking water circulation pump TWZP (as with Oskar-10 /  Trink-Wasser-Zirkulations-Pumpe TWZP (wie bei Oskar-10

 Technical Data

 Ratiotherm Fresh Water System FWS-4 Buffer PV Ready - 200lt & 400lt