Monthly Maintenance - Huawei NetCol8000-E220 User Manual

NetCol8000-E220 Modular Indirect Evaporative Cooling
System
User Manual
Table 6-1 Final resistance value
Filter Efficiency
G2 (initial efficiency)
G3 (initial efficiency)
G4 (initial efficiency)
F7-F8 (medium and high efficiency)

6.2.1 Monthly Maintenance

Table 6-2 Monthly maintenance checklist
Task
Air filter
Y-shaped
strainer
Water tank
Compressor
Issue 02 (2019-10-10)
the resistance reaches the specified value. The following table lists the recommended
final resistance values.
Baseline Requirement
The air filter is clean and not
blocked.
The air filter is not damaged or
distorted.
The Y-shaped strainer is not
blocked.
The float has no scale.
The water tank filter is not
blocked.
The compressor is secured.
The compressor service valve has
no oil stains.
The operating compressor
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6 System Operation and Maintenance
Recommended Final Resistance (Pa)
50–100
100–200
150–250
300–400
Troubleshooting
 Clean the fresh air filter once every
two months. Remove the air filter in
shutdown mode, and rinse the air
filter with high pressure water. If the
air filter surface has oil stains, soak
the air filter in the clear water for 30
minutes, then rinse it with high
pressure water, and then dry the air
filter.

The return air filter cannot be
cleaned with water. It is
recommended that the air filter be
replaced every six months.
Replace the air filter.
Remove the air filter of the Y-shaped
strainer in shutdown mode, exhaust
water from pipes and clean the air filter.
Clean up the scale from the float.
Remove the air filter from the water
tank in the shutdown state, clean it with
water, and reinstall it.
Tighten screws if the compressor is not
secured.
Clean the oil stains.
Replace the compressor.
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