12
5. Water
Volume 2.0
L/min
Temperature
20°C to 25°C
Pressure
200 kPa to 300 kPa (gage pressure)
We recommend tap water or pH controlled pore water circulating in a cooling water
circulator.
Specifications of primary piping connection (portions connected with the equipment)
Equipment connection (socket) Rp1/4 (Tool-less joint)
Recommended hose
Tetronic braided hose (prepared by a user)
Internal diameter 9 mm, Outer diameter 15 mm
Caution
Fix piping
Piping for cooling water should be secured with a
tool-less joint.
This is done to prevent water leakage.
Note
The Japan Refrigeration and Air Conditioning Industry Association’s
GL-02-1994 water quality standard
pH (25°C)
6.5 or more, 8.2 or less
Electric conductivity
800 µS/cm.25°C
Chloride ion
200 mg.Cl
-
/L
Sulfate ion
200 mg. SO
4
2-
/L
Acid consumption
100 mg.CaCO
3
/L
Total hardness
200 mg.CaCO
3
/L
Calcium hardness
150 mg.CaCO
3
/L
Ionic silica
50 mg.SiO
2
/L
