DualLite LSN - 300.2 Routine System Maintenance; 300.3 Changing Air Filters

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300.2 Routine System Maintenance
TheLSNinvertersystemunitisdesignedtoprovideyearsoftrouble-freeoperation.Itsself-testing/self-diagnostic
microprocessor will check the batteries and inverter regularly to ensure proper operation.
Theunitdoesrequiresomeroutineattentiontoassurepeakperformance.Dual-LiterecommendsaPreventative
Maintenancecheckbeperformedbyaqualiedservicetechnicianatleasteverysixmonths.Thetechnicianmust
observeimportantsafetyprecautionswhileperformingthefollowingrecommendedtasks:
• Inspect and clean the unit interiors;
• Inspect and record any Alarm and Inverter Logs;
• Inspect all batteries for leaks, case swelling or terminal corrosion;
• Check the AC and DC meter functions and recalibrate if necessary;
• Perform an emergency operation test to check operation of all critical connected loads;
• Check the values of metered parameters and system logs,
• Change air lters (see below).
NOTE: If the LSN unit is installed in an area where audible alarm signals may not be
heard, a weekly visual check is advised.
300.3 Changing Air Filters
CAUTION
ThisproceduremustbedonebyaqualiedservicepersonONLY!
Basedontheinstallationenvironment,LSNinvertersystemairltersshouldbechangedatleasteverysixmonthsto
assuresufcientairowtopreventoverheatingofunitelectronics.
Tochangeunitairlters,followthesesteps:
1. Follow the steps in Section 207.1 to safely shut down the unit. Remember to leave the system door closed for at
least veminutestoallowcapacitorstodischarge.
2. Afterveminuteperiod,openthesystemdoor.
2. Removeoldlterswhichareheldinplacebydouble-sidedadhesivetape.
3. Clean off any tape adhesive residue from back of door.
4. ReplaceltersusingDual-LiteFilterKit
5. Close the system door.
6. Follow the “System Startup Procedure” outlined in Section 109. Be sure to complete all of the steps to assure the
unit will operate properly.