If the untreated water used in the heat transfer circuit complies with the following guidelines, it can normally be used without special treatment.

NOTE!

To protect the system, it is recommended that these values be maintained and checked regularly.

Guideline values

Hydrological data

Temperature range

Approximate value

Unit

PH-value

-

7,5−9

-

Conductivity

≤110 °C

<150

mS/m

110−180 °C

<50

>180 °C

<3

Total hardness

≤140 °C

<2,7

mol/m3

<15

°dH

>140 °C

<0,02

mol/m3

<0,11

°dH

Carbonate hardness


≤140 °C

<2,7

mol/m3

<15

°dH

>140 °C

<0,02

mol/m3

<0,11

°dH

Chloride ions CI -

≤110 °C

<50

mg/L

110−180 °C 

<30

>180 °C

<5

Sulfate SO 4 2-

-

<150

mg/L

Ammonium NH4 +

-

<1

mg/L

Eisen Fe

-

<0,2

mg/L

Manganese Mn

-

<0,1

mg/L

Particle size

-

<200

µm

Water treatment

NOTE!

  • If the guidelines are not met, professional water treatment is required. It is recommended that the water treatment be carried out by a specialized company.

ATTENTION!

For correct handling, the following must be observed:

  • The treatment agent must be able to be used up to the maximum working temperature of the temperature control unit.
  • To protect the unit, no aggressive treatment agent may be used that can destroy the material of the unit (materials used, see here... )
  • Overdosing or underdosing the treatment agent can cause damage. The quality of the treatment agent must be regularly checked.
  • If treatment agent are mixed with other additives and agents, this must be coordinated with the manufacturers.
  • The trade and use of treatment agent are subject to country-specific regulations. In certain countries, clarifications with the relevant waste water authority are required.

Further Information: