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NBC 170 HP - www.regulus.eu
4 - Operation
The tank is designed for operation in pressure circuits. Hot water is heated in the tank via the integrated heat
exchanger (heating coil) from e.g. a heat pump.
Hot water temperature should be set to 55-60 °C. This temperature guarantees the best operation and at the
same time, it prevents formation of Legionella bacteria.
5 - Examples of Assigning Connection Points
Table of limit values for total dissolved solids in hot water
Description
pH
Total dissolved
solids (TDS)
Ca
Chlorides
Mg
Na
Fe
Max. value
6.5 - 9.5
600 mg/l
40 mg/l
100 mg/l
20 mg/l
200 mg/l
0.2 mg/l
NBC 170 HP
CH HW Circ CW
