Installing Cables - Huawei NetCol5000-C065 Quick Manual

1. Rotate the chilled water valve to the
maximum (100%).
2. Check that the needle and exhaust valves
on the pipeline are closed.
3. Connect a reducing valve and a nitrogen
cylinder at the needle valve position shown
in the figure, charge 0.8 MPa of nitrogen
(when the pressure is stable), and leave
them for 24 hours.
4. Check for pressure change after 24 hours.
4.7
(Optional) Leakage Test with Water
If the leakage test has been done with nitrogen, skip the test with water.
Manually open the chilled water valve. Inject water to 0.8 MPa, and preserve the pressure for 24
hours. Then connect a pressure gauge to a needle valve on the pipeline to measure the pressure. If
the reading remains unchanged, the pipe is not leaking. You can perform the following operations.
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Installing Cables

5.1
Connecting the Equipotential Ground Cable and Power Cable
1. When routing the cables, wrap the section of all signal cables inside the smart cooling product
with the corrugated pipes and route them out of the corresponding cable holes so that the
strong- and weak-current cables are separated.
2. Route the power cable along the rear door post, and use cable ties to secure the cable to the
post every 150–200 mm.
4.6
Injecting Water to Expel Nitrogen
Clean the main pipe beforehand to avoid
blockage of the heat exchanger due to foreign
construction matter. Close the isolation valve on
the water inlet and outlet pipes before the
cleaning.
1. Open the general water supply valve.
2. Press the button on the side of the actuator and
manually rotate the valve handle to the maximum
in the specified direction. Check that the chilled
water valve is in the open state (100%).
3. Slowly open the exhaust valve to let out gas.
4. Adjust the gas releasing speed until no gas flows
out of the valve. Then close the exhaust valve.
5. Manually close the chilled water valve.
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