Huawei FusionModule1000A40 Maintenance Manual page 78

FusionModule1000A40 Prefabricated All-in-One
Data Center
Maintenance Guide
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5.
Step 11 Remove the water refill and drainage pipes from the smart cooling product indoor
unit, and cut off the refrigerant pipe.
Issue 04 (2021-02-10)
Figure 5-15 Reclaiming refrigerant
(1) Hose bound to sheet metal near the outdoor unit needle valve (supportive leg or
support)
NO TE
The hose should be bound at a position close to the hose outlet to a tension not
squeezing the hose.
Slowly open the valve on the pressure gauge to start discharging refrigerant.
NO TE
When discharging the refrigerant, verify that refrigerant oil does not flow out of the
hose. If a small amount of refrigerant oil continually flows out of the hose, place a
vessel or rag under the hose to catch the refrigerant oil.
Keep the pressure gauge valve open after the refrigerant draining slows down
after a period of time until no refrigerant is obviously flowing out.
Wear anti-freezing gloves and press the needle valves on the smart cooling
product indoor unit to check whether refrigerant flows out.
– If refrigerant flows out, perform
corresponding needle valve.
– If no refrigerant flows out, go to
Check whether water exists in the water pan, humidifier cylinder, humidifier
pipes, and drainpipe. If residual water exists, clean the water using a rag and
bucket to prevent water leakage.
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Step 10.1–Step 10.3
Step 10.5.
5 Parts Replacement
on the
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