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FusionCol8000-E400 Modular Indirect Evaporative
Cooling System
User Manual
Step 11 Perform a leakage test with nitrogen.
Step 12 After checking that there is no leakage, vacuumize the system and charge
refrigerant.
Step 13 Check that the phase sequences are correct before starting the smart cooling
product. Then choose Maint > Diagnostic > Enter to check the system pressure
and temperature and ensure the refrigerant is charged with an optimal status.
Ensure that the system is running normally without alarms.
Step 14 Close the No. 3 maintenance door.
Step 15 Power on the device, choose Maint > Performance Maint on the home screen of
the display module to access the performance maintenance screen, and clear the
runtime of the compressor.
----End
9.6.3 R410A Refrigerant
Do not use low-quality refrigerant. The supplier is not responsible for any device
damage caused by low-quality refrigerant.
Verify that the refrigerant is authentic in the following ways:
1.
2.
Figure 9-13 Refrigerant detection
Issue 04 (2022-06-30)
CA UTION
Dial the refrigerant vendor's hotline to confirm the refrigerant authenticity.
As shown in
Figure
9-13, place the refrigerant in an indoor place with
constant temperature and humidity for 24 hours. Then, use a thermometer to
measure the temperature of the refrigerant tank outer surface and connect a
pressure gauge to the pressure tank to measure the internal pressure. Find the
saturation pressure corresponding to the measured outer surface temperature
from
Table
9-1. If the deviation between the saturation pressure and the
measured internal pressure is greater than 0.2 MPa, the refrigerant does not
meet the requirements and needs to be replaced.
Copyright © Huawei Technologies Co., Ltd.
9 Parts Replacement
135
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