FusionModule1000B Water-Cooled IT Solution
Commissioning Guide
4 Preparations for Power-On Commissioning
Issue 02 (2017-01-10)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
12
Table 4-7
Water quality requirements
Item
Allowed Value
Unit
pH value (at
25°C)
6.5-8.0
-
Conductivity (at
25°C)
< 800
mS/cm
Cl
-
< 200
mg/L
SO
4
-2
< 200
mg/L
Acid
consumption
(with pH 4.8)
< 100
mg/L
Total hardness
< 200
mg/L
Calcium hardness < 150
mg/L
SiO
2
< 50
mg/L
Fe
< 1.0
mg/L
NH
4
+
< 1.0
mg/L
It is recommended that water quality be tested by local professionals.
If the water quality does not meet the requirements, add devices to process water or find
water sources that meet the requirements. Water that does not meet the requirements
influences the normal operating and service life of equipment.
Determine the glycol volume concentration based on the lowest temperature in record in
the area where the FusionModule1000 is used. After determining the concentration, mix
the qualified water and glycol by the required ratio. Alternatively, you can purchase glycol
solution with the required concentration.
Glycol solution is toxic. Never drink it and avoid contact with your skin, eyes, mouth, or
nose.
Table 4-8
Glycol concentration requirements at lowest temperatures
Local Lowest Temperature
Recorded (°C)
Glycol Solution
Concentration
Power Density
Derating Coefficient
0
14%
95.1%
-5
22%
92.9%
-10
30%
90.5%
-15
35%
88.9%
