Procedure
Step 1 Tap Shutdown on the home screen of the display module.
Step 2 Open the front door and turn off the general switch. For a device that has two
power inputs, turn off the active power switch QF1 and standby power switch
QF2.
Step 3 (For the upflow units) Remove the electric control box 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 (For the downflow units) At the terminal position in the upper left corner of the
unit, 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 5 Remove the chilled water valve actuator.
1. Pull out the actuator handle upwards, as shown by (1) in
.
Figure 6-26 Removing the chilled water valve actuator
2. Insert the hex key on the handle into the hole on the front of the actuator, as
shown by (2) in
.
3. Turn the handle in the direction shown by (3) in
screw and remove the actuator.
Step 6 Install a new water valve actuator.
1. (Optional) Use the actuator handle to remove the locating pin from the hole
in the mounting kit of the new actuator. See
.
NetCol8000-C(070, 130, 190) In-room Chilled Water
Smart Cooling Product
User Manual
6 Maintenance
Issue 07 (2021-12-30)
Copyright © Huawei Technologies Co., Ltd.
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