APC ACRA100 Installation Manual

Operation andMaintenancePumped Refrigerant SystemRefrigeration Distribution Unit (RDU)and Cooling ModulesACDA901ACOA500ACOA501ACRA100ACRA101

Pumped Refrigerant System Operation and Maintenance2Safety Read and adhere to the following important safety considerations when working with this uni

3Pumped Refrigerant System Operation and MaintenanceCommissioningAfter installation, verify that all components are working properly and that the equi

Pumped Refrigerant System Operation and Maintenance4Electrical Inspection ChecklistThe electrical inspection verifies that all electrical connections

5Pumped Refrigerant System Operation and MaintenanceMechanical Inspection ChecklistThe mechanical inspection verifies that all mechanical components a

Pumped Refrigerant System Operation and Maintenance6User Interface Inspection ChecklistThe user interface inspection verifies that the sensors and int

7Pumped Refrigerant System Operation and MaintenanceStart-up Inspection ChecklistThe start-up inspection ensures that the equipment is operating prope

Pumped Refrigerant System Operation and Maintenance8OperationThe Pumped Refrigerant SystemSystem OperationThe primary function of the Pumped Refrigera

9Pumped Refrigerant System Operation and MaintenanceIn the absence of an IT load or when all the CMs are turned off, the RDU refrigerant pumps continu

Pumped Refrigerant System Operation and Maintenance10The example below shows two RDUs employed to control three groups of CMs. RDUID: 1CMUnit: 1RDU: 1

11Pumped Refrigerant System Operation and MaintenancePumped Refrigerant System Piping Diagram Item Description Item DescriptionSight glassORD val

This manual is available in English on the enclosed CD.Dieses Handbuch ist in Deutsch auf der beiliegenden CD-ROM verfügbar.Deze handleiding staat in

Pumped Refrigerant System Operation and Maintenance12OA Piping Diagram Item Description Item DescriptionSupply air temperature sensorsSolenoid valve

13Pumped Refrigerant System Operation and MaintenanceRA Piping Diagram Item Description Item DescriptionFanReturn air temperature sensorsMicro-c

Pumped Refrigerant System Operation and Maintenance14Display Interface The display interface in the RDU also displays information pertinent to itself

15Pumped Refrigerant System Operation and MaintenanceUsing the DisplayEvery time you apply power to the cooling unit, the display interface initialize

Pumped Refrigerant System Operation and Maintenance16Navigating the screensSelector arrow. Press the up or down arrow key to move the selector arrow 

17Pumped Refrigerant System Operation and MaintenanceUsing the Path statementSelect the main- and sub-menu options specified in the path statement to

Pumped Refrigerant System Operation and Maintenance18Start the RDUPath: Main > Operate > OperateTo start the RDU, Select On. The pumps will star

19Pumped Refrigerant System Operation and MaintenanceGeneral ConfigurationThe configuration options are set during the commissioning of the RDU(s) and

Pumped Refrigerant System Operation and Maintenance20Power Source. The RDU has two AC inputs. One input is redundant. When Dual Feed is selected, an a

21Pumped Refrigerant System Operation and MaintenanceCM ConfigurationPath: Main > Cooling Modules > Select CM > Configuration > Parameters

American Power Conversion Legal DisclaimerThe information presented in this manual is not warranted by the American Power Conversion Corporation to be

Pumped Refrigerant System Operation and Maintenance22Identify the cooling modulesPath: Main > CMs In Network > Unconfigured CMsTo add an unconfi

23Pumped Refrigerant System Operation and MaintenanceGroup ConfigurationGroup settings determine which modules are available in each group and how the

Pumped Refrigerant System Operation and Maintenance24Control the EnvironmentThe primary function of the Pumped Refrigerant System is to capture the he

25Pumped Refrigerant System Operation and MaintenanceAir Flow. Manual/Auto (RA only)Cfg Type. Select the cooling configuration from the following opti

Pumped Refrigerant System Operation and Maintenance26Group PIDsPath: Main > Groups > Select Group Set Cool PID. Tune the Rack Inlet Temperature

27Pumped Refrigerant System Operation and MaintenanceTune the PID loopTune the PID loop to optimize the performance of the cooling group. Note: The PI

Pumped Refrigerant System Operation and Maintenance28Further tune the PID loop in the following ways to account for changes in the room load:RDU (comp

29Pumped Refrigerant System Operation and MaintenanceService intervalsPath: Main >Cooling Modules > Select CM > Configuration > Service In

Pumped Refrigerant System Operation and Maintenance30Display SettingsSet display interface settings, including time and date, units of measure, passwo

31Pumped Refrigerant System Operation and MaintenanceAdjust displayPath: Main Menu > Configure Display Contrast. Adjust the visibility of the scree

Pumped Refrigerant System Operation and Maintenance32Network ConfigurationThe RDU is shipped with a Network Management Card that enables you to manage

33Pumped Refrigerant System Operation and MaintenanceView Status ReadingsThe display interface has several options for viewing the status of the RDU,

Pumped Refrigerant System Operation and Maintenance34Path: Main > RDU > Status > MeasurementsTemperatures. The temperature at each of the sen

35Pumped Refrigerant System Operation and MaintenancePath: Main > Cooling Modules > Select CM > Status > Overview Temperature. The tempera

Pumped Refrigerant System Operation and Maintenance36Cooling group statusPath: Main > View Group StatusView information about the group.Max Rack. T

37Pumped Refrigerant System Operation and MaintenanceEvent LogThe event log saves status information and a message each time a change in the group is

Pumped Refrigerant System Operation and Maintenance38Alarm messages and suggested actions Alarm Message Severity Action RequiredBypass Valve Actuator

39Pumped Refrigerant System Operation and MaintenancePersistent Receiver Pumped DryCritical • Verify that there is adequate refrigerant in the system.

Pumped Refrigerant System Operation and Maintenance40Unit is in Maintenance ModeCritical • Service Technician may be troubleshooting the unit. To retu

41Pumped Refrigerant System Operation and MaintenanceCM alarm messages Alarm Number Alarm Message Severity Action Required28 Air Filter Service Interv

ContentsPumped Refrigerant System Operation and MaintenanceiGeneral Information... 1Overview . .

Pumped Refrigerant System Operation and Maintenance4231 Primary Power Source OvervoltageCritical • The input voltage is higher than the unit’s rated v

43Pumped Refrigerant System Operation and Maintenance39 Lower Supply Temperature 1 Fault Critical • Make sure the sensor is connected properly. • If t

Pumped Refrigerant System Operation and Maintenance44Network Management CardQuick ConfigurationOverviewNote: Disregard the procedures described in thi

45Pumped Refrigerant System Operation and MaintenanceAPC Device IP Configuration WizardYou can use the APC Device IP Configuration Wizard at a compute

Pumped Refrigerant System Operation and Maintenance46DHCP. You can use an RFC2131/RFC2132-compliant DHCP server to configure the TCP/IP settings for t

47Pumped Refrigerant System Operation and MaintenanceNote: After the RDU has its IP address configured, you can use Telnet, without first using ARP an

Pumped Refrigerant System Operation and Maintenance48How to Recover from a Lost PasswordYou can use a local computer that connects to the RDU through

49Pumped Refrigerant System Operation and MaintenanceCM Display OA displayRA displayna3132aInRowOACoolingSystemSTATUSLIGHTSWARNINGCRITICALUNIT IDSUPPL

Pumped Refrigerant System Operation and Maintenance50Display OperationThe display scrolls automatically through the sensor readings and alarms from th

51Pumped Refrigerant System Operation and MaintenanceMaintenanceLeak DetectorCalibrationThe leak detection feature must be calibrated before it can be

Pumped Refrigerant System Operation and MaintenanceiiGroup Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Pumped Refrigerant System Operation and Maintenance52Monthly Preventive MaintenancePhotocopy the following pages and use them during the maintenance p

53Pumped Refrigerant System Operation and MaintenanceMechanicalq Which refrigerant pump is operating? __________________________– Pump 1 run hours: __

Pumped Refrigerant System Operation and Maintenance54Quarterly Preventive Maintenance* Perform all the Monthly Preventive Maintenance items and the it

55Pumped Refrigerant System Operation and MaintenanceTroubleshootingProblem Possible Cause Corrective ActionDisplay interface not operational, but equ

1/2012990-3421B-001APC Worldwide Customer SupportCustomer support for this or any other APC product is available at no charge in any of the following

Pumped Refrigerant System Operation and MaintenanceiiiNetwork Management Card ...44Quick Configuration . . . .

1Pumped Refrigerant System Operation and MaintenanceGeneral InformationOverviewThe pumped refrigerant system is composed of at least one 160 kW Refrig