Operating Instructions and Installation Instructions

ST 1500 / 2000 / 2500 / 3000
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1 Technical specifications
1.1 Floor load
1.2 Water composition
1.3 Working clearance
Allow for the storage tank's weight and the maximum floor load; refer to the table (1.4
"General specifications").
The storage tank is intended for heating drinking water. The drinking water must comply with
the regulations governing drinking water for human consumption. The table gives an
overview of the specifications.
Water specifications
Water composition
Hardness
(alkaline earth ions)
> 1,00 mmol/l:
• German hardness > 5,6 °dH
• French hardness > 10,0 °fH
• English hardness > 7,0 °eH
• > 100 mg/l CaCO
3
Conductivity > 125 µS/cm
Acidity (pH value) 7,0 < pH value < 9,5
Note
If the water specifications deviate from those stated in the table, then the tank protection
cannot be guaranteed (4"Warranty").
For access to the storage tank, it is recommended that the following clearances are
observed:
• around the anode connection: 100 cm.
• around the storage tank: 50 cm.
• top of the storage tank: 50 cm
1.4 General
specifications
Unit ST 1500 ST 2000 ST 2500 ST 3000
Contents litres 1550 1880 2500 2820
Empty weight kg 325 350 485 520
Maximum floor load kg 1875 2230 2985 3340
Maximum operating pressure kPa (bar) 800 (8) 800 (8) 800 (8) 800 (8)
Maximum water temperature ºC 95 95 95 95
Anodes - 3 3 3 3