APC ACRD101 User Manual

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InRow RD 10 kW Air Cooled Operation and Maintenance
22
Run hours
The cooling unit records the number of hours each of its components has operated. When a component is 
replaced, use the Reset Run Hours option to reset the run hours for the displayed component to zero.
Path: Main > View Run Hours 
•  
Air Filter 
– Reset Run Hours
Note: Replace air filters with APC part number 875-2013 only.
•   Fans
 
– Fan Number
• Reset Run Hours
•  Compressor
– Reset Run Hours
•  Condensate Pump
– Reset Run Hours
•  Fan Power Supplies
– Reset Run Hours
Thresholds
Set alarms to alert you to threshold violations.
Path: Main > Set Unit Thresholds
When the monitored input exceeds the unit threshold, an alarm occurs. Set high temperature thresholds 
for the following sensors:
•  Rack Inlet: The temperature of the air entering the rack at the rack inlet sensors
•  Supply Air: The average temperature of the air output from the cooling unit as measured between 
the upper and lower supply air temperature sensors.
•  Return Air: The temperature of the air entering the cooling unit at the temperature sensor
Service intervals
Path: Main > Service Intervals 
The air filters should be serviced regularly. The service interval depends on environmental cleanliness. 
•  Air Filter Interval: Set the number of weeks before service is required for the Air Filter 
Interval. The default is 18 weeks.
•  Alarm: The interval setting has an alarm (Enable or Disable). If enabled, an audible alarm 
activates when the interval has elapsed. The alarm is cleared by selecting Clear Alarms in the 
main menu. 
Note: The Air Filter interval alarm is enabled by default.