Bosch QV Series Installation, Operation And Maintenance Manual page 24

24 | Water Quality Considerations
POTENTIAL
PROBLEM
SCALING
CORROSION
IRON FOULING
EROSION
* No "rotten egg" smell present at < 0.5 ppm H
** Equivalent to 30 mesh strainer
Table 5 Water Quality
8733829041 (2021/07)
Water Quality
Water Characteristic
pH (Acidity/Alkalinity)
Hardness (CaCO , MgCO
3 3
Ryznar Stability Index
Langelier Saturation Index
Hydrogen Sulfide (H S)
2
Sulfates
Chlorine
Chlorides
Carbon Dioxide
Ammonia
Ammonia Chloride
Ammonia Nitrate
Ammonia Hydroxide
Ammonia Sulfate
Dissolved Solids
Iron (Fe + Iron Bacteria
2
Potential)
Iron Oxide
Suspended Solids
Maximum Water Velocity
S.
2
Subject to change without prior notice
Acceptable Value
Copper
7–9
)
< 350 ppm
6.0–7.5
-0.5 – +0.5
< 0.5 ppm*
< 125 ppm
< 0.5 ppm
< 20 ppm
< 50 ppm
< 2 ppm
< 0.5 ppm
< 0.5 ppm
< 0.5 ppm
< 0.5 ppm
< 1,000 ppm
< 0.2 ppm
< 1 ppm
< 10 ppm, < 600 µm size**
6 ft/sec
QV Series Heat Pumps
Cupro-Nickel
7–9
< 350 ppm
6.0–7.5
-0.5 – +0.5
10–50 ppm
< 125 ppm
< 0.5 ppm
< 150 ppm
< 50 ppm
< 2 ppm
< 0.5 ppm
< 0.5 ppm
< 0.5 ppm
< 0.5 ppm
< 1,500 ppm
< 0.2 ppm
< 1 ppm
< 10 ppm, < 600 µm size**
6 ft/sec
QV Series Heat Pumps