Schneider Electric ACRC500 - Manual

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 sho...

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 equip...

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. WARNING ELECTRICAL HAZARD • Electrical service must conform to local and national electri...

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

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 th...

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.  Warning Alarm LED (yellow) When lit, a warning alarm condition exists. Failure to correct ...

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 t...

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...

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 ...

InRow RC Operation and Maintenance Manual 12 Stop the cooling unit 1. To 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 key...

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 &...

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 ...

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 au...

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. N...

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...

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 differ...

19 InRow RC Operation and Maintenance Manual Tune the PID loop Tune 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 runn...

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:...

21 InRow RC Operation and Maintenance Manual Display Settings Set display interface settings, including time and date, units, passwords, and time-out. You can also adjust the contrast, key click, beeper volume, and beep on alarm settings. Password & timeout Path: Main > Set Password NOTE: The...

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.

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...

InRow RC Operation and Maintenance Manual 24 View 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 un...

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 b...

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...

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, i...

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. Overvi...

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 Web browser when finished option enabled, you can use Schneider Electric for both the user name and password to access...

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 atte...

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 Vendor Specific In...

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 Telnet 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 ...

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) • Telnet or...

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 t...

InRow RC Operation and Maintenance Manual 38 Recover From a Lost Password You 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 tha...

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: __________...

InRow RC Operation and Maintenance Manual 40 Mechanical  Check the fans. All components should be moving freely with no signs of binding or damages.  Verify that the condensate line is flowing freely. Electrical  Inspect the electrical panel for tight connections and for overheated connections fr...

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: ...

Troubleshooting 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 • Tempora...

Worldwide 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 ...