Huawei FusionModule1000B V100R003C00 Commissioning Manual page 18

Water-cooled it solution
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FusionModule1000B Water-Cooled IT Solution
Commissioning Guide
Table 4-7 Water quality requirements
Item
pH value (at
25° C)
Conductivity (at
25° C)
-
Cl
SO
4
Acid
consumption
(with pH 4.8)
Total hardness
Calcium hardness
SiO
Fe
NH
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)
0
-5
-10
-15
Issue 02 (2017-01-10)
Allowed Value
6.5-8.0
< 800
< 200
-2
< 200
< 100
< 200
< 150
< 50
2
< 1.0
+
< 1.0
4
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
4 Preparations for Power-On Commissioning
Unit
-
mS/cm
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
Glycol Solution
Concentration
14%
22%
30%
35%
Power Density
Derating Coefficient
95.1%
92.9%
90.5%
88.9%
12

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