Water heat transfer medium

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

NOTE!

To protect the system, it is recommended that you maintain these values and check them 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
	≤140 °C	<15	°dH
	>140 °C	<0,02	mol/m3
	>140 °C	<0,11	°dH
carbonate hardness	≤140 °C	<2,7	mol/m3
	≤140 °C	<15	°dH
	>140 °C	<0,02	mol/m3
	>140 °C	<0,11	°dH
chloride ions CI -	≤110 °C	<50	mg/L
	110−180 °C	<30
	>180 °C	<5
Sulphate SO ₄ ^2-	-	<150	mg/L
Ammonium NH ₄ ⁺	-	<1	mg/L
Eisen Fe	-	<0,2	mg/L
manganese Mn	-	<0,1	mg/L
particle size	-	<200	µm

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 operating temperature of the temperature control unit.
To protect the unit, no aggressive treatment agent may be used, which can destroy the materials of the unit (materials used, see here... )
Overdosing or underdosing of the treatment agent can cause damage. The quality of the treatment agent must be checked regularly.
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 wastewater authority are required.

further Information: