Huawei NetCol5000-A User Manual page 213

NetCol5000-A(025, 035) In-row Air Cooled Smart
Cooling Product
User Manual (600 mm)
Step 10 Install the air filters and close the rear door if no problem is found.
Step 11 Choose Maint > Performance Maint on the main menu, and clear the accumulated running
time of the humidifier.
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6.5.7 Replacing Electric Heater
Prerequisites
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Before replacing the electric heater, make sure that the electric heaters are not hot to touch
after powering off, in order to avoid burns.
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Procedure
Step 1 Open the rear door. Remove the filters, and switch off the general power input breaker QF1
and electric heater circuit breaker QF4.
Step 2 Open the front door. Remove the protective net cover of the electric heater and sensing bulbs
of two temperature switches.
Step 3 Disconnect the cables from the electric heater.
Step 4 Remove screws that fasten the electric heater and drag the electric heater out.
Step 5 Install a new electric heater in an inverse order.
Step 6 Power on the unit and tap Maint > Diagnostic Mode > Enter to open the electric heater.
Make sure they work properly. Exit the Diagnostic Mode.
Step 7 Tap Maint > Performance Maint to clear the electric heater total runtime.
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Issue 13 (2019-01-15)
Recommended materials: Phillips screwdriver, new electric heater.
Preparations: Switch off the outside main power input.
Prevent screws from falling into the fan when you loosen the screws on the electric heater
rack.
When removing the electric heater, avoid hard bends on the capillary tube of the
temperature switch.
The electric heater rack is inside the NetCol5000-A. Exercise caution during maintenance
to prevent internal components from scratches or damage.
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6 System Operation and Maintenance
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