Water Composition; Working Clearances - AO Smith DRE 52 Manuel D'installation, D'utilisation Et D'entretien

8.2.3
EN
n
8.2.4
36

Water composition

The water must comply with the regulations for drinking water for human consumption.
Water composition
Water hardness
Conductivity
Acidity (pH value)
Note
Water quality may adversely affect the efficiency, performance and lifetime of the water
heater, refer to Warranty (on page 3). If water specifications differ from the specifications
in the table a water treatment specialist should be consulted.

Working clearances

Make sure that there is sufficient clearance to access the water heater:
• 100 cm in front of the water heater (AA).
• 50 cm at the left and right side of the water heater (BB).
• 100 cm at the top of the water heater.
Fig. Working clearances
> 1.00 mmol/l:
- German hardness > 5.6° dH
- French hardness > 10.0° fH
- English hardness > 7.0° e
- CaCO > 100 ppm
3
> 125 µS/cm
7.0 - 9.5
Installation, Maintenance and Service part