Installation Operation Maintenance

MaintenanceNote: Do not attempt to cleandisposable filters. Permanent filterscan be cleaned by washing with amild detergent and water. Ensurethat the filters are thoroughly drybefore reinstalling them in the unit(or duct system).Note: Replace permanent filtersannually if washing fails to cleanthem, or they show signs ofdeterioration. Be sure to use thesame type and size as wereoriginally installed.Condenser coilUnfiltered air circulates through theunit's condenser coil and can causethe coil's surface to becomeclogged with dust, dirt, etc. To cleanthe coil, brush the coil surface in thedirection of the fins with a softbristled brush.Keep all vegetation away from thecondenser coil area.Hot water coil (option)Stop the unit. Do not disconnect themain supply to the unit. This willpermit the anti-frost protection tocontinue to operate, and avoidwater to freeze-up in the coil.Service technicianmaintenanceBefore the cooling season, yourservice technician may examine thefollowing areas of your unit:• Filters, for cleaning orreplacement• Motors and drives systemcomponents• Economizer gaskets, forreplacement if necessary• Condenser coils, for cleaning• Safety controls, for mechanicalcleaning• Electrical components andwiring, for replacement andtightening of connections asnecessary• Condensate drain, for cleaning• Unit duct connections, to ensurethey are physically sound andsealed to the unit casing• Unit mounting support, toensure that it is sound• The unit, to ensure there is noobvious deteriorationBefore the heating season, yourservice technician may examine thefollowing areas of your unit:• The unit, to ensure that thecondenser coil can receive therequired airflow (that thecondenser fan grille is notobstructed)• The control panel wiring, toverify that all electricalconnections are tight, and thatwire insulation is intact• Clean burner area, verify the gasheat system operates properly.RT-SVX20B-E461