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FusionCol8000-E400 Modular Indirect Evaporative
Cooling System
User Manual
Compone
nt
Figure 8-1 Water pump drain valve and exhaust plug
(1) Drain valve
8.3 Troubleshooting
Issue 04 (2022-06-30)
Item (on the Basis of
Quarterly Maintenance)
If the outdoor temperature is
lower than 3°C, close the
water inlet valve and
manually open the drain valve
as shown by (1) in
Figure 8-1
to drain water. Open the
water pump drain port using a
17# wrench as shown by (3)
in
Figure 8-1
to drain water.
When the water pump runs
for the first time every year,
open the water inlet valve.
When water filling is complete
and the water pump works,
manually open the exhaust
plug of the water pump as
shown by (2) in
Figure 8-1
exhaust air.
NOTE
You are advised to replace the
water pump after the pump has
been running for 20,000 hours.
(2) Exhaust plug
Copyright © Huawei Technologies Co., Ltd.
8 System Operation and Maintenance
Troubleshooting
If the air is not completely
exhausted, air blockage may occur
and the water pump cannot spray
normally. In this case, you need to
manually exhaust the air. When
the water pump is running, loosen
the exhaust plug of the water
pump. When water flows out of
the exhaust hole, reinstall and
tighten the exhaust plug.
to
(3) Water pump drain port
115
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