Huawei NetCol5000-A035 - 5.2 Vacuumizing and Charging Refrigerant; 5.2.1 Refrigerant and Oil Calculation

5 Power-On Commissioning
5.1 Commissioning Tools
The following lists the tools for commissioning the NetCol5000-A. Add or delete
tools as required.
● Wrench: adjustable wrench.
● Vacuumization and charging tools: pressure gauge (scale ≥ 4.0 MPa), leather
hose (bearing pressure ≥ 4.5 MPa), and vacuum pump.
● Measuring tools: multimeter, clamp meter, and electric balance.
● Protective tools: insulation gloves, boots, and antifreeze gloves.
● Others: torch.
5.2 Vacuumizing and Charging in Refrigerant
CA UTION
Wear protective gloves when handling refrigerant to avoid injury from refrigerant
leakage.
5.2.1 Calculation about the Charged the Refrigerant and
Refrigerant Oil
Refrigerant
Calculate the total one-way length of pipes connecting the indoor unit and the
outdoor unit by referring to Table 3-12. L is short for the length.
The refrigerant is R410A. Table 5-1 and Table 5-2 show the refrigerant to be
charged.
NetCol5000-A(025, 035) In-row Air Cooled Smart
Cooling Product
User Manual (600 mm Width) 5 Power-On Commissioning
Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd. 136