Setup Standby Unit Options | Liebert RAC2-8 manual

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

Image 30

Liebert RAC2-8 manual Setup Standby Unit Options

Contents

$XWRð&KDQJHRYHUý&RQWUROOHU Table of Contents Table of Figures RAC2-8 UnitPage Introduction Page Installation To start up the RAC2-8Operation Page Operation Glossary of Control Functions for more details Sequencing Status Screens cont’d Status Sub-menu Delay Units Status Sub-menu cont’d Set Options Sub-menuSet Options Sub-menu cont’d Function Delays TEMP/HUM Password Standby Alarm Sub-menu Time Set Clock Sub-menuDate DAY of Week Unit 01 Forced on Force OFF Restore Return Terminal LOG on Status Screen Number of ZONES/NUMBER of Units PER Zone Setup Zones/Units OptionsSetup Zones/Units Options cont’d Unit Status Unit Shutdown on Alarm Emergency Power Units 08 0 no Alarms Review and Alarms Clear Unit LabelsSet Clock Override a Unit Set Modem Options Setup Temp/Humid Options Setup Temp/Humid Options cont’dSet Modem Options cont’d Setup Standby Unit Options Display SS Alarm Block Set New Password Alarms List of Alarms Alarm Delay Alarm AnnunciationAlarm Communications Autochangeover Autosequencing Common Alarm-Output Clear AlarmsCommon Alarm-Inputs Key Emergency Power Operation DelayEmergency Power OFF EPO Hold Delay Inactive Unit Humidity AlarmsHumidity Lockout Interval Power Failure Mode Normal TemperaturePassword Override Standby Testing Restart DelayRestore Running Units Temperature Staging Temperature AlarmsTemperature Sensitivity Terminal Zones Installation TB2 RAC2-8 Dimensional Enclosure Diagram RAC2-8 Component Arrangement RAC2-8 Connection Diagram RAC2-8 Switch and Jumper Settings