Kampmann Katherm HK Series, Assembly And Installation Instructions Manual

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5
Katherm HK 1.43
Ready-to-install trench heaters with EC tangential fan
Assembly and installation instructions
1.2 Limits of operation and use
Limits of operation
Min./max. water temperature
°C 5-120
Min./max. air intake temperature °C 15-40
Min./max. air humidity % 15-75
Max. operating pressure bar 10
Min./max. glycol percentage % 25-50
Water quality
pH
*1 8-9
Conductivity *1 µS/cm < 700
Oxygen content (O
2
) mg/l < 0.1
Hardness °dH 4-8.5
Sulphur ions (S)
not measur-
able
Sodium ions (Na
+
) mg/l < 100
Iron ions (Fe
2+
,Fe
3+
) mg/l < 0.1
Manganese ions (Mn
2+
) mg/l <0.05
Ammonia ions (NH
4+
) mg/l < 0.1
Chlorine ions (CI) mg/l < 100
CO
2
ppm < 50
Sulfate ions (SO
4
2-
) mg/l < 50
Nitrite ion (NO
2
-
) mg/l < 50
Nitrate ion (NO
3
-
) mg/l < 50
We would refer to VDI-2035 Sheets 1 & 2, DIN EN 14336 and DIN EN 14868 with regard to the
properties of the medium used to protect the equipment. The following values provide further guidance.
The water used should be free of contamination, such as suspended substances and reactive substances.