NetCol5000-A020 Air Cooled In-row Precision Air
Conditioner
User Manual
2 Product Description
Issue 01 (2014-06-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
13
Item
Specifications
single-phase DC pulse and transient current pulse.
Note: If some conditions are not met, please contact Huawei technical support.
Table 2-4
Water quality requirements
Item
Requirement
Unit
Hydrogen ion
7–8.5
PH
Conductivity at 20°C
(σ
20
)
300–1250
μS/cm
Total dissolved solids
0.93 x σ
20
mg/l
Dry residue at180°C
0.65 x σ
20
mg/l
Total hardness
100–400
mg/l (CaCO
3
)
Temporary hardness
60–300
mg/l (CaCO
3
)
Iron+manganese
0–0.2
mg/l (Fe+Mn)
Chloridum
0–30
ppm (Cl)
Anhydrous silicate
0–20
mg/l (SiO
2
)
Residual chlorinum
0–0.2
mg/l (Cl)
Calcium sulfate
0–100
mg/l (CaSO
4
)
Metal matter
0
mg/l
Solvent, thinner, soap,
and lubricant
0
mg/l
Visible impurities
None
N/A
2.5 Technical Specifications
Table 2-5
and
Table 2-6
show the universal and optional parameters.
Table 2-5
Universal parameters
Item
Specifications
Cooling mode
Air cooled
Refrigerant
R410A
Air supply mode
Horizontal flow
