Replacing A Water Valve Actuator - Huawei NetCol5000-C Series User Manual

NetCol5000-C030 In-row Chilled Water Smart Cooling
Product
User Manual (Simple Configuration)

6.4.12 Replacing a Water Valve Actuator

Context
Recommended materials: a new actuator
Preparations: The devices can only be maintained from the rear door, and the power is shut
down.
Procedure
Step 1 Tap Shutdown on the LCD home screen and switch off the active input circuit breaker,
standby input circuit breaker, and the external power supply.
Step 2 Open the rear door and remove the air filter.
Step 3 Remove the circuit breaker cover, remove the cord end terminals 1, 2, 3, and 5 from the
actuator using a small-sized flat-head screwdriver, and cut off the cable ties of the actuator to
ensure that the actuator cables are separated from the unit.
Step 4 Manually set the chiller water valve opening to 100%.
1.
2.
3.
Issue 09 (2020-01-10)
Pull out the actuator handle upwards, as shown by (1) in
Figure 6-15 Removing the actuator of the chilled water valve
Insert the hex key on the handle into the hole in the front of the actuator, as shown by (2)
in Figure 6-15.
Turn the handle in the direction shown by (3) in
remove the actuator.
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6 System Operation and Maintenance
Figure 6-15.
Figure 6-15 to loosen the screw and
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