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Chapter 8 : Maintenance & Cleaning
Periodically inspecting and cleaning this air handling device helps ensure optimal
operational status of the equipment.
Internal elements such as the fan and the coil need to be cleaned and inspected periodically.
This device contains replaceable elements that only qualified service staff may clean and
inspect.
8.1
Component Maintenance
1. Coil and door maintenance
The CoolDoor does not have a filter to filter the air. The system will first cool the air
through the coil and then send it out through the fan. Therefore, the coil can easily
become blocked by dust from the air in the IT room. It is recommended that you
maintain and clean it every season. If air quality is poor, it is recommended that you
increase cleaning frequency.
A. Check that the key can properly lock and unlock the door, and confirm whether the
door latch can open and close normally.
B. Check whether the door opens smoothly; confirm whether the soft tube causes
undue drag or friction.
C. Check whether there are water marks on the surface of the pipe, and confirm
whether there is leakage at the connection between the soft tube and the coil.
D. Use a soft brush or an air blower to clean the air inlet of the coil. Do not apply
excessive force, which may cause the coil fins to bend or the surface of the fins to
become damaged.
E. Open the exhaust valve, and appropriately use the soft tube connection to confirm
whether there is air accumulation on the inside. Ensure that the coil is effective. After
finished, confirm whether the upper and lower exhaust valve caps are on tight.
2. Fan and panel door maintenance
A. Before turning off the power, first confirm whether the lower LED light bar displays
correctly; Power Feed A is blue and Power Feed B is green. You can activate the
abnormality alarm of the air sensor by unplugging the quick connection of the air
sensor during standby; confirm that the light is red, and then restore it.
B. Check that the key can properly lock and unlock the door, and confirm whether the
door latch can open and close normally. Then confirm whether the panel door opens
smoothly.
C. Confirm that running fans are running at normal speeds; you can use the air speed
meter to measure the air volume of each fan.
D. Confirm whether the total operating current is within the maximum value on the
nameplate.
73
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