Vacuumizing And Precharging Refrigerant; Refrigerant Charge Amount Requirements; Vacuumizing - Huawei FusionCol8000-E240 User Manual

FusionCol8000-E240 Modular Indirect Evaporative
Cooling System
User Manual
Step 2 Open the pressure gauges and reducing valve. Inject 3.0 MPa nitrogen and
preserve the pressure for 24 hours. The system pressure should stay constant
under unchanging ambient temperature conditions. If there is considerable
temperature change, perform the test again.
The outlet pressure of the reducing valve should be within 3.0 MPa; otherwise,
components may be damaged.
Step 3 If the pressure decreases, apply soapy water or use a halogen leak detector to
check for any leakage. If the pressure is stable, expel the nitrogen.
----End

8.4.13.4 Vacuumizing and Precharging Refrigerant

During the commissioning of the smart cooling product, ensure that no
combustion-supporting materials (such as air or additive) enter the smart cooling
product system. Huawei is not liable for any risks and losses caused due to
violation.

8.4.13.4.1 Refrigerant Charge Amount Requirements

Table 8-7 Charge amount of refrigerant
Charge Amount of Refrigerant
Standard amount (kg)

8.4.13.4.2 Vacuumizing

Prerequisites
● Before vacuumizing, check that the refrigerant pipe system has passed the air
tightness test and does not leak.
● Before vacuumizing, ensure that all connectors on the device are tightened.
● System high pressure may occur if the system is not vacummized or is not
thoroughly vacummized. Therefore, ensure that the system is thoroughly
vacummized.
Issue 01 (2021-01-30)
NO TICE
CA UTION
NO TICE
Copyright © Huawei Technologies Co., Ltd.
FusionCol8000-E240H4
18.5
8 System Maintenance
164