APC IN ROW RD ACRD101 - Manual (Page 24)

InRow RD 10 kW Air Cooled Operation and Maintenance 16
Stop the cooling unit
Path: Main > On/Standby
Press the E NTER
key to change the setting to Standby. The cooling unit enters the standby mode.
Electrical Hazard: The Standby option does not remove power from the cooling unit. You
must disconnect power at the mains to remove power from the cooling unit.
General Configuration
The cooling group configuration options are set during the commissioning of the cooling units in the
cooling group.
Caution: This procedure must be performed by APC authorized personnel only. Changing
the settings incorrectly can cause malfunctions to your cooling unit.
Cooling unit configuration
Path: Main > Configure Unit > General
Use the General menu to set the start-up delay, idle on leak, and refrigerant fill settings.
Start-up Dly (Start-up Delay). The delay begins when the cooling unit is started and initialized. The
cooling unit cannot begin operation until this delay expires. Use the start-up delay to restart equipment
sequentially after a scheduled downtime or a power outage.
Idle On Leak. When set to Yes, the cooling unit will enter idle mode if a Water Detection Fault
activates. Set to No to disable the cooling unit from entering idle mode if a leak is detected.
Note: The leak sensor (APC part number AP9325) is optional.
Note: There are three alarms that will cause the cooling unit to enter idle mode:
• Water Detection Fault (when Idle On Leak is set to Yes)
• Condensate Pump Fault
• Cooling Failure
See “Alarm messages and suggested actions” on page 29 for more information on alarms.
Refrig Fill. Set to Start to add refrigerant to the system. This setting turns on the compressor and sets
the fans to maximum speed until the compressor suction pressure drops below 50 psig for two minutes,
twenty minutes elapse, or the property setting is changed to Abort.
Caution: The Refrig Fill setting is intended only for charging the unit with refrigerant.