Liebert XDH manual Internal Access, Fluorinated Greenhouse Gas Requirements

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Maintenance

9.0MAINTENANCE

Minimal maintenance is required to keep the Liebert XDH operating at optimal levels. The unit should be cleaned and checked for damage and worn parts. Suggested maintenance includes:

•Cooling fins—Clean any dust and debris from the cooling fins, taking care not to bend them

•Circulating fans—Clean any dust from the fans.

9.1Internal Access

WARNING

! Risk of electric shock. Can cause injury or death.

System contains hazardous electrical voltage. Disconnect both power cords from the electrical supply outlets or from the receptacles on the back of the Liebert XDH before working within.

• Turn off the two fan switches on the front of the Liebert XDH (see Figure 26).

The conditions required for sensitive electronic equipment should preclude the accumulation of appre- ciable amounts of dust in the Liebert XDH. Most of that small amount should be found on the coils, which are accessible by opening the rear door of the unit. The fans, on the front may be cleaned by removing the front grilles, which are secured with snap-on connections.

The rear door and the fan tray on the front of the Liebert XDH are easily removed for maintenance. (A wiring diagram is provided on the center shelf.)

9.2Fluorinated Greenhouse Gas Requirements

Stationary air conditioning, refrigeration, heat pump equipments and stationary fire protection sys- tems in the European Community market and operating with fluorinated greenhouse gases (f-gas), such as R407C, R134a, R410A, must comply with the F-Gas Regulation: (EC) No. 842/2006 (F-gas). The regulation prohibits, among other actions, venting fluorinated greenhouse gases to the atmo- sphere.

The F-Gas Regulation requires operators to use use all measures that are technically feasible and do not entail disproportionate cost to prevent leakage of these gases, to test for leakage regularly and to recover f-gas during equipment service and maintenance and before disposing of equipment.

Refer to the full regulation for additional details.

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Contents Liebert XDH Fluorinated Greenhouse Gas Requirements-European Union General Safety GuidelinesTable of Contents Specifications MaintenanceOperation Liebert XDH component locations Example XDH32BKParts Included With the Liebert XDH Pre-Installation ChecksProduct Description ReferencesRoom Preparation Installation ConsiderationsChecking and Unpacking Product/System DescriptionRecyclable Packaging Equipment InspectionUnpacking the Unit Unit HandlingPrepare ramp to remove the Liebert XDH from shipping pallet Taking the Unit off the PalletAttaching ramp, removing the Liebert XDH from pallet Installing the Liebert XDH Within the Enclosure Row Determining Placement in the Conditioned SpaceXDH Airflow DirectionChange airflow direction Install Air Diffusers for Best Airflow DirectionEuropean Union Fluorinated Greenhouse Gas Requirements System Connection ConfigurationTypical Liebert XDH piping-non-interlaced connection Indirect system configuration-hydraulic system schematic Connection Methods and Points Hard pipe connection diagramPiping Considerations-Hard-Piped Connections Venting the Holding Charge and Connecting to MainsRear of Liebert XDH Brazing Preparations Connecting Methods-One-Shot ConnectionsConnection Methods for Hard Pipe Recommended Piping SizeDegree Connection Header System Connecting Liebert XD Flex Pipes to Liebert XDH ModulesTools Required Liebert XD prefabricated piping assembly Tools Required Insulation Return Line Service Valve SupplyElectrical Connecting High Voltage WiringCondensate wiring entry points Connecting Low Voltage Wiring-OptionalCharging with Refrigerant and Starting the Liebert XD System Checklist for Proper InstallationOperation Start the Liebert XDHFluorinated Greenhouse Gas Requirements Internal AccessRemove fan tray Remove Fan TraySpecifications Liebert XD Flex Pipe assemblies, supply and return Page Ne t
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