Liebert RAC2-8 manual Unit

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Power Source	Aux Pwr Out	Terminal	Modem
120 VAC	24 VAC, 2A	Port	Port

SiteScan

Liebert

Temp/Humid

Module

(p/n THS28-xx)

Emergency

Power Oper.

Input

Emergency

Power Off

RAC2-8

EIA-232EIA-232

N.O.

C

N.C.

N.O.

C

N.C.

N.O.

C

N.C.

EIA-422

Twisted Pair

Common Alarm

Output

Humidity Lockout

Relay

Optional Lockout

Relay

Control Common

Input Alarm

Output

UNIT 1

Control Common

Input Alarm

Output

UNIT 2

Control Common

Input Alarm

Output

UNIT 8

Figure i. Typical System Configuration

Liebert RAC2-8 • iii

Image 4

Contents $XWRð&KDQJHRYHUý&RQWUROOHU Table of Contents Table of Figures RAC2-8 UnitPage Introduction Page To start up the RAC2-8 InstallationOperation Page Operation Glossary of Control Functions for more detailsSequencing Status Screens cont’d Status Sub-menuDelay UnitsSet Options Sub-menu Status Sub-menu cont’dSet Options Sub-menu cont’d Function Delays TEMP/HUM Password StandbyAlarm Sub-menu Set Clock Sub-menu DateTime DAY of WeekUnit 01 Forced on Force OFF Restore Return Terminal LOG onStatus Screen Setup Zones/Units Options Setup Zones/Units Options cont’dNumber of ZONES/NUMBER of Units PER Zone Unit StatusUnit Shutdown on Alarm Emergency Power Units08 0 no Unit Labels Alarms Review and Alarms ClearSet Clock Override a Unit Set Modem Options Setup Temp/Humid Options cont’d Setup Temp/Humid OptionsSet Modem Options cont’d Setup Standby Unit Options Display SS Alarm Block Set New PasswordAlarms List of AlarmsAlarm Annunciation Alarm CommunicationsAlarm Delay AutochangeoverAutosequencing Clear Alarms Common Alarm-InputsCommon Alarm-Output KeyDelay Emergency Power OFF EPOEmergency Power Operation Hold DelayHumidity Alarms Humidity LockoutInactive Unit IntervalNormal Temperature PasswordPower Failure Mode OverrideRestart Delay RestoreStandby Testing Running UnitsTemperature Alarms Temperature SensitivityTemperature Staging TerminalZones Installation TB2 RAC2-8 Dimensional Enclosure Diagram RAC2-8 Component Arrangement RAC2-8 Connection Diagram RAC2-8 Switch and Jumper Settings