Preparing For The Cooling System Power-On Commissioning - Huawei FusionModule1000A 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.
If a low-temperature component is installed in the outdoor unit compartment: Check the
temperature labels after the equipment is delivered to the site. If the 65° label has turned black,
the outdoor temperature exceeds 65° during transportation, and the safety valve may operate
and refrigerant may leak. If the smart cooling product generates a refrigerant leakage alarm,
add refrigerant according to the user manual of the smart cooling product. If the 70° label has
turned black, the outdoor temperature exceeds 70° during transportation, the safety valve has
operated and refrigerant has leaked. Add refrigerant according to the user manual of the smart
cooling product.
Preparations
Tools: multimeter, phillips screwdriver
Documents: cooling device layout diagram, smart 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 smart cooling product teamwork relationship by referring to the smart 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
Issue 02 (2019-12-20)
For the diagrams and tables, see the initial configuration parameter manual for the solution in use.
a
)
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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
Table 4-4.
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