Huawei NetCol5000-A020 User Manual page 81

NetCol5000-A020 Air Cooled In-row Precision Air
Conditioner
User Manual
Item
Pipes
Table 5-2 Quarterly maintenance items
Item
Air filters
Condensate
water pan
Issue 01 (2014-06-30)
Operations
insulation foams on the
steam pipes are not
damaged.
Check that solenoid
valves of the water inlet
and drainpipe to the
electrode humidifier
function properly.
Check the water scale in
the humidifier cylinder.
Check the humidifier run
overtime alarm is not
reported.
After the humidifier
starts, the current of each
phase is less than 1.2 A.
Check that the thermal
insulation foams on the
refrigerant pipe are not
damaged or corroded.
Check that the refrigerant
pipe support is intact and
securely installed.
Operations
Check that the filters are
tidiness and not blocked.
Check that no foreign
matter exists on the
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5 System Operation and Maintenance
Troubleshooting
foams.
Replace the solenoid valves.
Remove the humidifier cylinder,
clean and brush the water scale
inside the humidifier cylinder with
20% acetic acid or replace the
humidifier cylinder by referring to
5.6.4 Replacing the Humidifier
Cylinder.
Remove the humidifier cylinder,
clean and brush the water scale
inside the humidifier cylinder with
20% acetic acid or replace the
humidifier cylinder by referring to
5.6.4 Replacing the Humidifier
Cylinder.
Remove the humidifier cylinder,
clean and brush the water scale
inside the humidifier cylinder with
20% acetic acid or replace the
humidifier cylinder by referring to
5.6.4 Replacing the Humidifier
Cylinder.
Evacuating the refrigerant, and
repair the leak on the pipe. Wrap
the thermal insulation foams.
Replace the pipe support and
tighten it.
Troubleshooting
Clean or replace the air filters by
referring to 5.6.1 Replacing Air
Filters.
Clean the condensate water pan,
water tank, and remove foreign
Result
Result
74