APC ACRA100 Installation Manual download pdf (Page 29)

21Pumped Refrigerant System Operation and Maintenance

CM Configuration

Path: Main > Cooling Modules > Select CM > Configuration > Parameters

Startup Dly. Enter a value for the delay. The startup delay begins when the unit is started and initialized.

The CM cannot begin operation until this delay expires. Use the startup delay to restart equipment

sequentially after a scheduled downtime or a power outage.

Power Source. The CM has two AC inputs. One input is redundant. When Dual Feed is selected, an

alarm will initiate if either of the AC inputs fails. If only one feed is used, select Single Feed.

Disp On Off. Enables/Disables the On/Off control on the local display of the CM.

Stop Cool Fail. If enabled, the unit will shut down if a Cool Fail condition is detected. Cool Fail is a

condition where the difference between the supply air temperature of the CMs and 90°F integrated over

time exceeds 300 seconds, given that the difference is positive and the power output of the CMs is less

than 4 kW.

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APC ACRA100 Installation Manual Page 29