Huawei NetCol8000-A013 User Manual page 87

NetCol8000-A013 In-room Air Cooled Smart Cooling
Product
User Manual (600 mm Width)
2.
3.
Step 7 Commission the humidifier.
1.
Issue 04 (2022-11-25)
valve of gas pipe stop valve. Ensure that the refrigerant is charged in a small
amount or intermittently. The total amount of charged refrigerant must meet
the following requirements.
Table 4-6 Refrigerant to be charged
Total One-Way Pipe Length (L)
≤ 30 m
30 m < L ≤ 60 m
Figure 4-9 Charging refrigerant
(1) Electronic balance (2) Refrigerant
cylinder
After the compressor speed stabilizes at 3000 rmp for about 10 minutes,
choose Run > Device Run State to view the Suction Pressure, Discharge
Pressure, and Supercool. Check whether the suction pressure, discharge
pressure, and supercool degree are within their normal ranges.
Table 4-7 Running parameters
Outdoor Normal
Ambient Discharge
Temperature Pressure Range
Below 15°C 1.5–2.5 MPa
15–35°C 1.5–3.1 MPa
35–45°C 2.5–3.8 MPa
Above 45°C 3.1–4.15 MPa
On the diagnostic mode screen, change the compressor input to 0 rpm.
Confirm that the upstream inlet valve of the wet film humidifier is open.
Copyright © Huawei Digital Power Technologies Co., Ltd.
4 Power-On Commissioning
Refrigerant to Be Charged
No need to charge refrigerant
(L – 30) x 0.05
(3) Pressure gauge (4) Needle valve of
gas pipe stop valve
Normal Suction Normal
Pressure Range Supercool
Degree
0.7–1.2 MPa 3–5°C
80