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Manual Schneider Electric ACRC501

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  • Schneider Electric ACRC501 - page 1

    Operation and Maintenance Manual InRow ® Chilled W ater Cooling Units InRow ® RC ACRC500, ACRC501, ACRC502 990-3237B-001 Publication Date: November 2014 ...

  • Schneider Electric ACRC501 - page 2

    Schneider Electric IT Corporation Legal Disclaimer The information presented in this manual is not warranted by the Schneider Electric IT Corporation to be authoritative, error free, or complete. This publication is not meant to be a substitute for a detailed operational and site specific development plan. Therefore, Schneider Electric IT Corporati ...

  • Schneider Electric ACRC501 - page 3

    T able of Contents InRow RC Operation and Maintenance Manual i General Information ........................................................... 1 Important Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Safety Notices During Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Commissioning ...

  • Schneider Electric ACRC501 - page 4

    ii InRow RC Operation and Maintenance Manual Control the Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 How the Cool mode works . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Setpoints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 PID settings . . . . . . . . . . ...

  • Schneider Electric ACRC501 - page 5

    iii InRow RC Operation and Maintenance Manual Access a Configured Network Management Card . . . . . . . . . . . . . . . . 35 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 Web interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 Telnet and SSH . . . . . . . . . . . . . ...

  • Schneider Electric ACRC501 - page 6

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  • Schneider Electric ACRC501 - page 7

    1 InRow RC Operation and Maintenance Manual General Information Important Safety Information Read the instructions carefully to become familiar with the equipment before trying to install, operate, service, or maintain it. The following special messages may appear throughout this manual or on the equipment to warn of potential hazards or to call at ...

  • Schneider Electric ACRC501 - page 8

    InRow RC Operation and Maintenance Manual 2 Safety Notices During Operation Read and adhere to the following important safety considerations when working with this equipment. Follow all local and national regulations when handling refrigerants. Service to the components in the refrigeration loop should be performed only by a certified HV AC technic ...

  • Schneider Electric ACRC501 - page 9

    3 InRow RC Operation and Maintenance Manual NOTICE ST A TIC ELECTRICITY HAZARD Circuit boards contained within this unit are sensitive to static electricity . Use one or more electrostatic-discharge device while handling the boards. Failure to follow these instructions can result in equipment damage. ...

  • Schneider Electric ACRC501 - page 10

    InRow RC Operation and Maintenance Manual 4 Commissioning After installation, complete the following checklists to verify that all components are working properly and that the equipment is ready to begin operation. Checklists Initial inspection checklist The initial inspection ensures that the equipment has been properly installed, the location of ...

  • Schneider Electric ACRC501 - page 11

    5 InRow RC Operation and Maintenance Manual Electrical inspection checklist The electrical inspection verifies that all electrical connections are secure and correct and that the equipment is properly grounded. W ARNING ELECTRICAL HAZARD • Electrical service must conform to local and national electrical codes and regulations. • The equipment mu ...

  • Schneider Electric ACRC501 - page 12

    InRow RC Operation and Maintenance Manual 6 Mechanical inspection checklist The mechanical inspection verifies that all mechanical components and connections are secure. CAUTION PIPING INST ALLA TION Failure to properly install piping may result in improper cooling unit operation or possible damage to the cooling unit or surrounding equipment. Fail ...

  • Schneider Electric ACRC501 - page 13

    7 InRow RC Operation and Maintenance Manual User interface inspection checklist The user interface inspection verifies that the sensors and internal communication links are installed properly . Check that the outdoor heat exchanger is connected to the cooling unit and to the other cooling units in the room if you are using cooling group controls. S ...

  • Schneider Electric ACRC501 - page 14

    InRow RC Operation and Maintenance Manual 8 Operation Display Interface Item Description Function  Critical Alarm LED (red) When lit, a critical alarm condition exists and requires your immediate attention.  W arning Alarm LED (yellow) When lit, a warning alarm condition exists. Failure to correct this condition could cause a critical alarm. ...

  • Schneider Electric ACRC501 - page 15

    9 InRow RC Operation and Maintenance Manual Using the Display Every time you apply power to the cooling unit, the display interface initializes, causing the LEDs to cycle and the alarm-tone to activate. Scrolling status screens After start-up, the interface displays the firmware revision number of the display interface. The display interface then s ...

  • Schneider Electric ACRC501 - page 16

    InRow RC Operation and Maintenance Manual 10 Continue arrows: Continue arrows  indicate that additional options or settings are available on a menu or status screen. Press the up or down arrow key to view the additional items. Navigating sub-menus Selecting a option displays the sub-menu screen for that option. In this example, the selector arro ...

  • Schneider Electric ACRC501 - page 17

    11 InRow RC Operation and Maintenance Manual Password entry The cooling unit has two levels of password protection: • Device password allows Device Users to change basic and environmental settings. • Admin password allows all privileges granted for Device Users, and also allows the Administrator to modify settings that control the components in ...

  • Schneider Electric ACRC501 - page 18

    InRow RC Operation and Maintenance Manual 12 Stop the cooling unit 1. T o stop the cooling unit, press the ENTER key until the cursor is on the Operation > On/Standby menu item. 2. Press the ENTER key again to show the toggle state arrow to the right of Operation . 3. Use the up and down arrow keys to change from On to Standby . See “Path: Mai ...

  • Schneider Electric ACRC501 - page 19

    13 InRow RC Operation and Maintenance Manual General Configuration The configuration options are set during the commissioning of the cooling units in the cooling group. NOTE: All changes to settings must be performed by qualified personnel. Cooling unit configuration Path: Main > Configure Unit > General Capacity: Set the cooling capacity of ...

  • Schneider Electric ACRC501 - page 20

    InRow RC Operation and Maintenance Manual 14 Contacts View the state of input and output contacts Path: Main > Configure Unit > Discrete I/O Each cooling unit supports a user-defined input contact and a user-defined output contact. Each contact monitors a sensor and responds to changes in the state of the sensor (open or closed). Input State: ...

  • Schneider Electric ACRC501 - page 21

    15 InRow RC Operation and Maintenance Manual Cooling Group Configuration Use the configuration settings to add cooling units to the group and to define group operation. The system automatically assigns the state of Backup to units in the group. A unit whose Role Override setting is set to ON will automatically be set as a Primary cooling unit. A un ...

  • Schneider Electric ACRC501 - page 22

    InRow RC Operation and Maintenance Manual 16 Identify the cooling unit Path: Main > Set Identification The Set Identification menu contains settings that identify the name and location of the cooling unit. Unit Id: Assign a unique identification number to this cooling unit. Range: 1 through 12. Name: Assign a Name, up to 40 alpha-numeric charact ...

  • Schneider Electric ACRC501 - page 23

    17 InRow RC Operation and Maintenance Manual Control the Environment The primary function of the cooling unit is to cool air from the hot aisle and deliver it to the cold aisle at the temperature setpoint. The control strategies employed by the cooling unit depend upon the deployment strategy of the cooling group. In an in-row environment, the cool ...

  • Schneider Electric ACRC501 - page 24

    InRow RC Operation and Maintenance Manual 18 NOTE: If the Supply Air setpoint is greater than the Cool setpoint, the cooling unit triggers an alarm and resets the Supply Air setpoint to equal the Cool setpoint. • Fan Spd: Set the fan speed preference that will give you the desired temperature difference (DT). Each fan speed provides an approximat ...

  • Schneider Electric ACRC501 - page 25

    19 InRow RC Operation and Maintenance Manual T une the PID loop T une the PID loop to optimize the performance of the cooling group. NOTE: This procedure is to be performed by Schneider Electric authorized personnel only . The PID loop must be tuned after the equipment in the room is installed and running. The loop should be tuned periodically to a ...

  • Schneider Electric ACRC501 - page 26

    InRow RC Operation and Maintenance Manual 20 Run hours The cooling unit records the number of hours each of its components has operated. When a component is replaced, use the Reset Run Hours option to reset the run hours for the displayed component to zero. Path: Main > View Run Hours Components: • Air Filter – Reset Run Hours NOTE: Replace ...

  • Schneider Electric ACRC501 - page 27

    21 InRow RC Operation and Maintenance Manual Display Settings Set display interface settings, including time and date, units, passwords, and time-out. Y ou can also adjust the contrast, key click, beeper volume, and beep on alarm settings. Password & timeout Path: Main > Set Password NOTE: The default user password is apc (lowercase). See ? ...

  • Schneider Electric ACRC501 - page 28

    InRow RC Operation and Maintenance Manual 22 Display units Path: Main Menu > Set Display Units Set the units of measure for the cooling unit to either US or Metric. ...

  • Schneider Electric ACRC501 - page 29

    23 InRow RC Operation and Maintenance Manual Network Configuration The cooling unit is shipped with a Network Management Card (NMC) that enables you to manage the cooling unit over your network. Configure the network settings for the Network Management Card from the display interface. The management card allows remote control and configuration of t ...

  • Schneider Electric ACRC501 - page 30

    InRow RC Operation and Maintenance Manual 24 V iew Status Readings The display interface has several options for viewing the status of the cooling unit, the cooling group to which the cooling unit belongs, and the environment being controlled. The status readings for the cooling unit are available under the View Unit Status option in the main menu, ...

  • Schneider Electric ACRC501 - page 31

    25 InRow RC Operation and Maintenance Manual Cooling group status Path: Main > View Group Status View information about the cooling group. Max Rack (Maximum): The highest rack temperature reported by any cooling unit in the cooling group. Min Rack (Minimum): The lowest rack temperature reported by any cooling unit in the cooling group. Air Flow: ...

  • Schneider Electric ACRC501 - page 32

    InRow RC Operation and Maintenance Manual 26 Event Log The event log saves status information and a message each time a change in the cooling group is detected. Alarms and events are recorded in the log and displayed on the active alarms screen. Status events (informational) and system configuration changes are only displayed in the event log. View ...

  • Schneider Electric ACRC501 - page 33

    27 InRow RC Operation and Maintenance Manual Respond to Alarms When an alarm is triggered, the cooling unit alerts you through the display by the following methods: • Active alarm screen entry on scrolling status screens • LEDs on the front panel display • An optional audible alarm every 30 seconds, if enabled View active alarms Path: Main &g ...

  • Schneider Electric ACRC501 - page 34

    InRow RC Operation and Maintenance Manual 28 External Communication Fault Critical • A hardware failure exists. • For assistance, contact Customer Support. Fan #n Fault W arning • A hardware failure exists. • For assistance, contact Customer Support. Fan #n Run Hours Violation W arning • At the display interface, reset the Fans run hours ...

  • Schneider Electric ACRC501 - page 35

    29 InRow RC Operation and Maintenance Manual Supply Air High T emperature Violation W arning • Make sure the temperature sensor is connected properly . • Make sure the Supply Air threshold is set correctly in the Set Unit Threshlds screen. • If the problem persists, contact Customer Support. Supply Air Sensor Fault (upper or lower) Critical ? ...

  • Schneider Electric ACRC501 - page 36

    InRow RC Operation and Maintenance Manual 30 Network Management Card Quick Configuration The cooling unit is shipped with a Network Management Card that enables the cooling unit to be managed over a network. Configure the Network Management Card to control this cooling unit through a network. Overview Y ou must configure the following TCP/IP settin ...

  • Schneider Electric ACRC501 - page 37

    31 InRow RC Operation and Maintenance Manual 4. When the Wizard discovers the unconfigured Network Management Card, follow the on-screen instructions. NOTE: If you leave the Start a W eb browser when finished option enabled, you can use Schneider Electric for both the user name and password to access the Network Management Card through your browser ...

  • Schneider Electric ACRC501 - page 38

    InRow RC Operation and Maintenance Manual 32 BOOTP & DHCP configuration The default TCP/IP configuration setting, BOOTP & DHCP , assumes that a properly configured BOOTP or DHCP server is available to provide TCP/IP settings to Network Management Cards. The Network Management Card first attempts to discover a properly configured BOOTP serve ...

  • Schneider Electric ACRC501 - page 39

    33 InRow RC Operation and Maintenance Manual Option 43 = 01 04 31 41 50 43 where – the first byte ( 01 ) is the code – the second byte ( 04 ) is the length – the remaining bytes ( 31 41 50 43 ) are the Schneider Electric cookie See your DHCP server documentation to add code to the V endor Specific Information option. T o change the control co ...

  • Schneider Electric ACRC501 - page 40

    InRow RC Operation and Maintenance Manual 34 – Windows command format: ping 156.205.14.141 -l 113 – LINUX command format: ping 156.205.14.141 -s 113 3. Use T elnet to access the Network Management Card at its newly assigned IP address. For example: telnet 156.205.14.141 4. Use apc for both user name and password. See “Control console” on pa ...

  • Schneider Electric ACRC501 - page 41

    35 InRow RC Operation and Maintenance Manual Access a Configured Network Management Card Overview After the Network Management Card is running on your network, you can access the configured Network Management Card through the following interfaces: • Web interface (HTTP or HTTPS protocol) • T elnet or Secure SHell (SSH) • SNMP • FTP or Secur ...

  • Schneider Electric ACRC501 - page 42

    InRow RC Operation and Maintenance Manual 36 As address , use the IP address of the Network Management Card or DNS name (if configured). 2. Enter the user name and password (by default, apc and apc for an Administrator , or device and apc for a Device User). SSH for high-security access: If you use the high security of SSL for the Web interface, us ...

  • Schneider Electric ACRC501 - page 43

    37 InRow RC Operation and Maintenance Manual T o access the Modbus register map, go to the Schneider Electric Web site, www .schneider- electric.com . ...

  • Schneider Electric ACRC501 - page 44

    InRow RC Operation and Maintenance Manual 38 Recover From a Lost Password Y ou can use a local computer (a computer that connects to the Network Management Card through the serial port) to access the control console. 1. Select a serial port at the local computer , and disable any service that uses that port. 2. Connect the provided RS-232 configura ...

  • Schneider Electric ACRC501 - page 45

    39 InRow RC Operation and Maintenance Manual Maintenance Monthly Preventive Maintenance Photocopy the following pages and use them during the maintenance procedures. After they have been completed, save them for future reference. Prepared By: ________________________________ Model Number: ______________________________ Serial Number: ______________ ...

  • Schneider Electric ACRC501 - page 46

    InRow RC Operation and Maintenance Manual 40 Mechanical  Check the fans. All components should be moving freely with no signs of binding or damages.  V erify that the condensate line is flowing freely . Electrical  Inspect the electrical panel for tight connections and for overheated connections from loose contact terminals.  Confirm th ...

  • Schneider Electric ACRC501 - page 47

    41 InRow RC Operation and Maintenance Manual Quarterly Preventive Maintenance * Perform all the Monthly Preventive Maintenance items and the items below . Prepared By: _________________________________ Model Number: _______________________________ Serial Number: _______________________________ Date: ______________________________________ Mechanical ...

  • Schneider Electric ACRC501 - page 48

    T roubleshooting Problem Possible Cause Corrective Action Controls erratic or inoperative • Inlet temperature to cooling unit is higher than rated maximum temperature • Reduce the load or add additional cooling equipment. Fans fail to start • Cooling unit shutdown due to an external command • T emporarily remove the input contact cable, if ...

  • Schneider Electric ACRC501 - page 49

    43 InRow RC Operation and Maintenance Manual Alarms do not show up on monitoring equipment (Customer Output Contact) • External monitoring equipment is not receiving power or is not functioning properly • Confirm that power , if required, is being supplied to the external equipment. • If the cooling unit (+12 V or +24 V) is providing power to ...

  • Schneider Electric ACRC501 - page 50

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  • Schneider Electric ACRC501 - page 52

    W orldwide Customer Support Customer support for this or any other product is available at no charge in any of the following ways: • Visit the Schneider Electric Web site to access documents in the Schneider Electric Knowledge Base and to submit customer support requests. – www .schneider-electric.com (Corporate Headquarters) Connect to localiz ...

Manufacturer Schneider Electric Category Water Dispenser

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