Preparing For The Cooling System Power-On Commissioning - Huawei FusionModule1000A40 Commissioning Manual

FusionModule1000A40 Prefabricated All-in-One Data
Center
Commissioning Guide
4.5 Preparing for the Cooling System Power-On
Commissioning
Prerequisites
External cooling devices have been installed.
Preparations
Tools: multimeter, Phillips screwdriver
Documents: cooling device layout diagram, cooling product teamwork relationship diagram,
indoor/outdoor unit and T/H sensor wiring diagram, cooling device initial configuration table
Skill requirement: cooling engineer
Procedure
Step 1 Understand the layout of cooling devices by referring to the cooling device layout diagram.
Step 2 Understand the cooling product teamwork relationship by referring to the cooling product
teamwork relationship diagram.
Step 3 Understand the connections between the indoor unit, outdoor unit, and T/H sensors by
referring to the indoor/outdoor unit and T/H sensor wiring diagram.
Step 4 Understand the initial configurations of the cooling system by referring to the cooling device
initial configuration table.
Step 5 Verify that the water quality and pressure meet the requirements listed in
Table 4-4 Water quality and pressure requirements
Item
Hydrogen ion
Conductivity at 20ºC (σ
Inlet water hardness specifications
Water refill pressure
Water pipe diameter


Issue 04 (2020-01-17)
For the diagrams and tables, see the initial configuration parameter manual for the solution in use.
a
)
20
a: If σ is less than 300 μS/cm, it takes a longer time for the humidifier to generate
20
vapor for the first time. If σ
affected.
b: If the water hardness exceeds 100 mg/L (CaCO
installed.
Copyright © Huawei Technologies Co., Ltd.
4 Preparations for Power-On Commissioning
Allowed Value
pH: 7–8.5
125–1250 μS/cm
≤ 100 mg/L
b
0.1–0.7 MPa
DN25
is greater than 1250 μS/cm, the humidifier service life is
20
), a water softener should be
3
Table 4-4.
20