Rate and give feedback:
Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document.
Note: Even the most advanced machine translation cannot match the quality of professional translators.
Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Connecting the Chilled Water Inlet and Outlet Pipe
Context
- Connect the water inlet and outlet pipes from the inside to the outside and from the top to the bottom.
- Water inlet and outlet pipes are connected using thread connectors.
- Tools: 70# open-end wrench, 36# open-end wrench, 18# pipe wrench, sealant (used for pasting thermal insulation foam), thread sealant
Before installing the pipe, release all nitrogen from the pipe to avoid personal injury.
- The chilled water pipes should be closely wrapped with thermal insulation foam (the thickness is less than 20 mm) along the route. Ensure that the foam is in close contact with the pipes.
- After pipes are routed for the unit, seal the gaps between the pipes and the pipe holes.
- Connect pipes routed from the top onsite. Do not remove the side pipe plug.
To minimize the noise due to vibration of the unit, perform the following operations:![]()
- When the routing direction of the chilled water pipe is changed, add a fastener at the position that is 1000 mm away from the changing point.
- When the chilled water pipe is straight, add a fastener every 2500 mm.
Onsite personnel prepare the required materials and install the fasteners.
Figure 4-18 Fastener layout (unit: mm)
![]( "Click to enlarge")
Table 4-3 Chilled water pipe port diameter
Model |
Chilled Water Inlet Pipe Outer Port Diameter |
Chilled Water Outlet Pipe Outer Port Diameter |
|---|---|---|
FusionCol8000-C |
G 2-in, thread connection |
G 2-in, thread connection |
Procedure
- Remove the top hole cover.
- Knock off the knock-out holes for the chilled water inlet and outlet pipes.
- Connect water pipes.
- Use a 70# open-end wrench and 18# pipe wrench to connect the water pipe.Figure 4-19 Connecting the water inlet or outlet pipes
It is recommended that sealing tape be used for connection onsite. If thread adhesive is used, apply the adhesive three circles at the rear end and prevent the adhesive and impurities from falling into the pipe.
- Use a 70# open-end wrench and 18# pipe wrench to connect the water pipe.
- Secure the U-shaped pipe clamp (provided by the customer) using two M5x10 tapping screws to fix the chilled water inlet pipe at the sheet metal.
The size of the U-shaped pipe clamp must match the DN54 water pipe.
Figure 4-20 Securing the chilled water inlet pipe - Attach thermal insulation foam to the pipes and ensure that the foam is in close contact with the pipe.
- After pipes are connected, reinstall the top hole cover.
