Lenovo NeXtScale n1200, Инструкция по установке и обслуживанию, Страница: 132 / 878

Step 17. Repeat steps 13-16 for all manifold sections until you can freely access the entire manifold to be
replaced.
Step 18. It is recommended to remove the entire manifold and lay it on the ground for the next steps.
Step 19. Place a pan under the section of the manifold to be removed.
41mm wrench
Figure 30. Manifold disassemble
Step 20. Disconnect manifold section to be replaced from the rest of the manifold by disconnecting the
couplings. Use 41mm wrench supplied with replacement manifold section kit.
Replacing the manifold
Use this information to replace the manifold.
Important: Make sure the water-cooled technology tray(s) are removed from the chassis (see “Removing a
water-cooled technology tray from a chassis” on page 139).
Attention: You must remove the power from the rack cabinet and all components before you connect or
disconnect the water supply lines and drain or fill the manifold.
Statement 5
CAUTION:
The power control button on the device and the power switch on the power supply do not turn off the
electrical current supplied to the device. The device also might have more than one power cord. To
remove all electrical current from the device, ensure that all power cords are disconnected from the
power source.
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Lenovo NeXtScale nx360 M5 water-cooled technology tray Lenovo NeXtScale n1200 Enclosure Installation and Service Guide