HP Performance Optimized Datacenter (POD) 20c Site Preparation and Requirements Guide - China

Site requirements 14
IMPORTANT: Operating the chilled water system at the higher end of the acceptable range
decreases the overall thermal capacity of the POD.
Acceptable water quality specifications
Water must be maintained per the following acceptable water quality standards.
Parameter Range
pH
8.0–10
Specific conductance at 25ºC (77ºF)
10–2500 µmhos
Alkalinity ("M" as CaCO
3
)
150–1000 ppm
Sulfur (SO
4
)
0–150 ppm
Chloride (Cl)
0–100 ppm
Hardness (CaCO
3
)
0–350 ppm
Calcium hardness (CaCO
3
)
0–200 ppm
Magnesium hardness (CaCO
3
)
0–150 ppm
Copper (Cu)
< 0.20 ppm
Iron (Fe)
< 3.0 ppm
Aluminum (Al)
< 0.50 ppm
Sodium (Na)
0–1000 ppm
Silica (SiO
2
)
0–150 ppm
Zinc (Zn)
< 1.0 ppm
Manganese (Mn)
< 0.1 ppm
Phosphate Ortho- (PO
4
)
< 3 ppm
Bacteria
< 1000 CFU/ml
Suspended solids
< 10 ppm
If your water is out of range, consult a water quality expert.
The following table describes the chilled water system specifications for the HP POD 20c.
Feature Specification
Facility input temperature to the HP POD
20c
12º to 24ºC (55º to 75ºF)
Working pressure
1,034 kPa (150 psi)
HP POD 20c pressure drop
172.4 kPa (25 psi)
HP POD 20c water flow rate
454 lpm (120 gpm)
Chilled water supply and return
connections
Two DIN PN16 DN80 flanges
Piping materials
Do not use the following interconnecting piping materials in a closed water system:
• Oxidizing biocides
• Aluminum components
• Brass components with high levels of zinc
• Non-stainless steel iron components