FusionModule800 Smart Small Data Center
Installation Guide (Six Fans)
Copyright © Huawei Technologies Co., Ltd.
If the pressure gauge cannot display 60 Pa (absolute pressure), perform vacuum pumping so that the
pressure gauge stays at the smallest scale and preserve the pressure for 1 hour. Then, check whether the
pressure displayed on the gauge has an obvious increase.
Step 6 After making sure that the pressure gauge has no obvious increase, open the stop valves for
the gas pipe and liquid pipe of the outdoor unit.
After the outdoor unit stop valve is opened, the refrigerant in the outdoor unit flows to the
engineering pipe and indoor unit pipe. When performing other operations, be careful to
prevent refrigerant from spraying out.
After the vacuumization and before removing the rubber hose, ensure that there is positive
pressure inside the refrigerant pipe of the indoor unit.
Step 7 Remove the hose, pressure gauge, and vacuum pump.
Step 8 Install needle valve nut and rear cover nut of indoor unit and outdoor unit.
Step 9 Wrap the gas pipe stop valve with stop valve sponge.
Figure 3-82 Wrapping the gas pipe stop valve
(3) Liquid pipe stop
valve
Step 10 Wrap the gas liquid stop valve with stop valve sponge by referring to Step 9.
----End
3.8 Installing Batteries
If batteries are configured, perform the following steps to install them.
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