Huawei NetCol5000-A050 Quick Manual page 26

When the compressor is 3000 rpm, the following table lists the proper system values.
Ambient Proper Discharge Pressure
Temperature Range (Running > Device
Details > Compressor)
< 15°C 1.5–2.5 MPa
15–35°C 1.5–3.1 MPa
35–45°C 2.5–3.8 MPa
> 45°C 3.1–4.15 MPa
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(Optional) Power-off
1. On the home page, tap Shutdown.
2. Turn off the QF1 and QF2. (You do not need to turn off the standby switch QF2 when there
is only one power supply.)
3. (Optional) If the smart cooling product needs to be maintained in power-off mode or long-
term power-off, switch off the smart cooling product circuit breaker on PDC.
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Checking After Commissioning
Check Item
No oil stain exists on the copper pipe thermal insulation foam or bottom
plate.
The needle valve plug is secured (torque of 0.45±0.05 N•m) , and valve
bonnet is tightened.
The foreign matter inside the water pan and bottom plate is cleaned up.
The air filter is correctly installed according to the airflow direction marked
on the frame.
Appendix A: Precautions Against Adding Glycol
Take antifreezing measures for cooling water pipes if the water cooling module is configured in low
temperature environments (4 ° C). To prevent glycol solution from corroding pipes, corrosion inhibitor
should be mixed into the glycol solution. For details about the mixing schemes, consult glycol experts.
Appendix B: Base
•
Shock absorption bars (EPDM rubber, 5 mm thick) are need to install between the ground
and the base.
•
The base should be at least 300 mm in height.
•
You are advised to use angle steel, square steel or channel steel. Width of 50 mm and
thickness of 3 mm to 5 mm is recommended.
•
When the width of angle steel is more than 50 mm, it is interfering with the cable routing holes.
Cut out the part on the angle steel to avoid interfering. If the width is less than or equal to 50
mm, skip this step.
• Control the welding process and avoid excessive error.
•
The M12 bolt used for securing the cabinet to its base must be at least 80 mm long.
•
The base bearing capacity must be at least 2 t.
•
Connect adjacent bases in parallel using bolts. Ensure that each base is secured to the
ground through at least four corners.
Proper Suction Pressure
Range (Running > Device
Details > Compressor)
0.7–1.2 MPa
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Proper Overheating
Degree (Running >
Device Details > EEV)
8–15°C
Result
□Passed □Failed
□Passed □Failed
□Passed □Failed
□Passed □Failed