Getting Started Guide

Site requirements 14
IMPORTANT: The chilled water system piping and heat exchangers must be drained completely,
and then purged using compressed air when storing or transporting at or below freezing
temperatures.
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 40c G2.
Feature Specification
Facility input temperature to the HP POD
40c G2
12ºC to 24ºC (55ºF to 75ºF)
Working pressure
1,034 kPa (150 psi)
HP POD 40c G2 pressure drop
172.4 kPa (25 psi)
HP POD 40c G2 water flow rate
908.5 lpm (240 gpm)
Chilled water supply and return
connections
•
North America—Two 10.16 cm (4 in) ASME B16.5 class #150
flanges
•
International—Two DIN PN16 DN100 flanges