Return Lift - Froling S1 Turbo Installation Instructions Manual

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2.4.6 Return lift

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water, exposing the connected system components to the risk of corrosion. These
systems offer no oxygen removal for the purposes of corrosion control as required by
VDI 2035 and in the interests of corrosion protection should not be used.
If the hot water return is below the minimum return temperature, some of the hot water
outfeed will be mixed in.
CAUTION
Risk of dropping below dew point/condensation formation if operated without re‐
turn temperature control.
Condensation water forms an aggressive condensate when combined with com‐
bustion residue, leading to damage to the boiler.
Take the following precautions:
❒ Regulations stipulate the use of a return temperature control.
➥ The minimum return temperature is 60 °C. We recommend fitting some
sort of control device (e.g. thermometer).
Froling GesmbH | A-4710 Grieskirchen, Industriestraße 12 | www.froeling.com
Safety
Design Information