Section 3: Operation
Setup Standby Unit Options
Press 9 from the Main Menu to display the Set Standby Unit Options
screen:
RAC2-8 MAIN MENU
** SET STANDBY UNIT OPTIONS **
1. Auto Sequencing = ON
2. Standby Testing = OFF
3. Day Interval = 89
4. At Time = 07:00
<ESC> TO EXIT
Auto Sequencing = (ENTER 1 for ON, 0 for OFF) >OFF
** SET STANDBY UNIT OPTIONS **
1. Auto Sequencing = OFF
2. Standby Testing = OFF
3. Day Interval = 89
4. At Time = 07:00
<ESC> TO EXIT
Two options are available for controlling Standby units (in addition to
Autochangeover). The RAC2-8 will operate with both of these options
turned OFF, or with one of them turned ON. Select the option (or
neither) required for your installation. The interval (in days) and time of
day are user selected.
Auto Sequencing balances the run time of units by changing the status
of a Standby unit to Running, and changing the Running unit to
Standby.
Standby Testing tests the operating condition of a Standby unit by
turning it ON for a period of time equal to the Hold Delay plus the
Alarm Delay. The Running unit is turned OFF during this period if it is
programmed to shutdown on an alarm.
Liebert RAC2-8 • 25