HP Performance Optimized Data Center (POD) 20cp Setup and Install | Page 15
Water quality requirements 15
Water quality requirements
Water quality requirements and specifications
• Closed-loop water must not contain any lime scale deposits or loose debris.
• The chil ed water temperature to be supplied to the HP POD must be 12º to 24ºC (55º to 75ºF).
NOTE: Freezing water might cause a blockage and damage to the unit. In outside locations
subject to freezing temperatures, an additive such as glycol might be necessary to lower the
freezing point. However, since the heat transfer potential of water with glycol is lower, the HP
POD must be derated accordingly.
NOTE: The water cycle must be drained completely, and then purged using compressed air
when storing or transporting at or below freezing temperatures.
Acceptable water quality specifications
Water must be maintained per the fol owing acceptable water quality standards.
Parameter
Range
pH
8.0–10
Specific conductance at 25ºC
(77ºF)
0–2500 µmhos/cm
Alkalinity ("M" as CaCO3)
150–1000 ppm
Sulfur (SO4)
0–150 ppm
Chloride (Cl)
0–100 ppm
Hardness (CaCO3)
0–350 ppm
Calcium hardness (CaCO3)
0–200 ppm
Magnesium hardness (CaCO3)
0–150 ppm
Copper (Cu)
< 0.20 ppm
Iron (Fe)
< 3.0 ppm
Aluminum (Al)
< 0.50 ppm
Sodium (Na)
0–1000 ppm
Silica (SiO2)
0–150 ppm
Zinc (Zn)
< 1.0 ppm
Manganese (Mn)
< 0.1 ppm
Phosphate Ortho- (PO4)
< 3 ppm
Bacteria
< 1000 CFU/ml
Suspended solids
< 10 ppm
If your water is out of range, consult a water quality expert.
Also See for HP Performance Optimized Data Center (POD) 20cp
- HP Performance Optimized Data Center (POD) 20cp Getting Started Guide 38 pages
- HP Performance Optimized Data Center (POD) 20cp Reference Guide 37 pages
- HP Performance Optimized Data Center (POD) 20cp User's Manual 86 pages
- HP Performance Optimized Data Center (POD) 20cp Service and Maintain 81 pages