Emerson 250-400kVA Battery Operation, Environmental Conditions, Environmental specifications

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SPECIFICATIONS

4.0SPECIFICATIONS

4.1Battery Operation

The separate battery manufacturer’s manual, available on the manufacturer’s Web site, provides the necessary information for the installation, operation and maintenance of the battery. Use the battery manual in conjunction with this manual.

The float charge voltage for a battery is equal to the number of cells in series making up the battery multiplied by the charge voltage for each cell.

Because the charging voltage level is critical to proper battery operation, refer to your battery man- ual, available on the manufacturer’s Web site, for information about your system.

For models with nominal 240-cell battery, the DC bus nominal float voltage range is 527 to 561VDC. Maximum equalize voltage is 585VDC. Battery voltage at end of discharge is 386VDC at the UPS ter- minals (389VDC at the battery). The number of battery cells required will range from 236 to 244, depending on the application.

4.2Environmental Conditions

Table 5 Environmental specifications

Parameter

Specification

 

 

Enclosure

The UPS is housed in a NEMA-1 enclosure. The enclosure is designed for indoor

use only and is not to be subjected to falling objects or precipitation.

 

Recommended Operating

77 (25) ambient

Temperature, °F (°C)

 

Maximum Operating

104 (40) ambient (design temperature) without derating; (see Notes 2 and 3).

Temperature, °F (°C)

 

Minimum Operating

0°C

Temperature, °F (°C)

 

Storage Temperature, °F (°C)

-13 to 158 (-25 to 70)

 

 

Typical Battery

Average annual temperature must not exceed 80°F (27°C). Peak temperature

Temperature Requirements

must not exceed 109°F (43°C). See battery manufacturer’s recommendations.

Relative Humidity

0 to 95% without condensation

 

 

Operating Elevation

Sea level to 4900 ft. (1500m) without derating

 

 

Storage Elevation

Sea level to 50,000 ft. (15,240m)

 

 

Audible Noise,

68 dBA typical

5 Feet (1.5m) from Unit

 

 

 

Notes on Environmental Specifications

1.This category of electronic equipment is agency rated for use in an atmosphere free of conductive particles. Some industrial facilities may require a room air filtration system to keep the UPS free of excess moisture and contaminants.

2.The UPS system is designed to operate continuously at 104°F (40°C). However, design equipment life expectancy will be extended with lower temperatures (25°C is recommended).

3.Ambient temperature is the maximum ambient temperature during any 24-hour period. For operation at higher temperatures, consult your Liebert sales representative or call Liebert Services at 1-800-LIEBERT.

4.Exercise care during installation to ensure unimpeded airflow through the UPS.

5.For operation at higher elevations, consult your Liebert sales representative or call Liebert Services at 1-800-LIEBERT.

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Contents Liebert NXL Contacting Liebert for Support Battery Cabinet PrecautionsTable of Contents Specifications Figures Page Important Safety Instructions Normal Mode General DescriptionModes of Operation Battery Mode Bypass ModeMaintenance Bypass OptionsIntroduction Main component locations FeaturesMimic display Monitor/mimic display example Utility fail Monitor/mimic display example Normal power flowMonitor/mimic display example Load on bypass, UPS On Menu tree Touchscreen Navigation Main Display ScreenRating Parameters Configurations Menu RatingSystem Settings parameters User SettingsAdjustable setpoints parameters Adjustable SetpointsCell Count Adjustment Event Management Status Reports MenuStartup Menu Shutdown menu Shutdown MenuTransfer Menu Transfer/retransfer commandsTime remaining display Battery Management MenuDisplay summary see Figure Metering ResetHelp SilenceLoad on bypass, UPS available OK to TransferInput power fail, load on battery Input Power Failure-Load on BatteryEmergency Module Off Off BatteryRemote Emergency Power Off Manual ProceduresStartup Procedure Startup commands Transfer Procedure Load Transfer ProceduresRe-Transfer Procedure Maintenance Bypass Load TransfersMaintenance Bypass Load Transfers-If Load is on UPS Bypass UPS Shutdown Procedure Shutdown ProceduresSystem Shutdown Procedure Automatic OperationsCurrent-versus-time curves of overload capacity Automatic Transfers to Bypass Overload ConditionAutomatic Retransfers to UPS Automatic Transfers to Bypass, UPS System FaultsSafety Precautions Routine Maintenance Liebert ServicesAir Filters Record LogUPS component service life Battery MaintenanceLimited Life Components Component Expected Life ReplaceBattery Safety Precautions Matching Battery Cabinets-Optional Battery voltage, nominal and floatBattery retorque values Detecting Trouble Torque specifications, unless otherwise labeledRack-Mounted Batteries Torque RequirementsReporting a Problem Upstream Feeder Circuit Breaker Setting InspectionsCorrective Actions Environmental specifications Battery OperationParameter Specification Environmental ConditionsBattery & DC Parameters Electrical specificationsLiebert NXL Model Size 250 Input ParametersLiebert NXL Model Size System ParameterPhysical Parameters & Standards, in mm Specifications Event Message Event Definition Recommended Action Liebert NXL alarm and status messagesObserve the One-Line Display. If the input line is Observe the One-Line Display. To identify which Do not Attempt to Close CB3 Until Reset Displayed on the Module Output Meter. If UPS controls monitor the DC Bus positive Resolve the issue that precipitated the EPO Check the One-Line Display for system status UPS, to transfer back to Inverter If this alarm occurs on an operational unit, it Attempt to manually close the disconnect by Module Output Meter. If the load is less than Output Power Factor. If the displayed power factor Until a service visit has been made and action taken When manual transfers are enabled Under normal conditions, no user action is required Observe the One-Line Display and the Active Event If the command to terminate Regeneration Mode If the alarm cannot be reset, or if the alarm condition UPS Alarm and Status Messages UPS Alarm and Status Messages Page Iti Ne tTi n That
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