Chapter 7 Maintenance 89
SmartCabinet Series Solution Product for IDC or Computer Rooms User Manual
Figure 7-3 SmartCabinet networking topology diagram
AC System Maintenance
The AC system maintenance includes electric inspection, indoor unit maintenance, outdoor unit maintenance and
maintenance inspection checklist.
Note
Switch off the circuit breaker and cut off the unit power before maintenance unless the power is necessary for the commissioning
item.
1. Electric inspection
Visually inspect the control board, temperature sensor on a semi-annual basis for any loose electric connection and
circuit corrosion.
Inspect the boards one by one according to the procedures below:
1) Do unit electric insulation test to find failed contacts and deal with them.
2) Tighten all electric contacts.
3) Clean the electric and control components with a brush or compressed dry air.
Note
All circuit boards are not hot-pluggable. Big instant current will be produced when the board is plugged or unplugged with
powering on and it may lead to unrepairable damage to the circuit. The control board can only be maintained after the micro-
processing controller is powered off.
2. Indoor unit maintenance
1) Fan
Since the fan kit operates 24 hours every day continuously, any unusual airflow obstruction must be cleared in time to
avoid the damage to the cooling system and other system components caused by reduced air volume.
2) Drain pipe
Inspect water pan periodically for normal operation of the drain pipe. Ensure that no foreign matter or leakage exits in
the drain pipe.
3. Outdoor unit maintenance
1) Refrigeration system
