White Rodgers SST1400 Owner's Manual

Also see for Comfort Plus SST1000: Owner's manual Owner's manual Owner's manual

Contents

11TECHNICAL REPAIR GUIDETECHNICAL REPAIR GUIDETECHNICAL REPAIR GUIDETECHNICAL REPAIR GUIDETECHNICAL REPAIR GUIDEThe solid-state power supply is notdesigned for individual component partreplacement and must be replaced asa complete "snap-in" unit.Input voltage: 120 VAC 60 Hz.Output to light: 1.5 to 2.5 VDCH.V. Output: 6450 VDC (nom)Collecting CellSpecificationsPower SupplySpecifications1000 cfm - 1.0 Ma @ 6450VDC1400 cfm - 1.2 Ma @ 6450 VDC1600 cfm - 1.5 Ma @ 6450 VDC2000 cfm - 1.7 Ma @ 6450 VDCFigure 22WARNING!Do not attempt repair of this unit unless you areDo not attempt repair of this unit unless you areDo not attempt repair of this unit unless you areDo not attempt repair of this unit unless you areDo not attempt repair of this unit unless you arefamiliar with the necessary tools, equipment,familiar with the necessary tools, equipment,familiar with the necessary tools, equipment,familiar with the necessary tools, equipment,familiar with the necessary tools, equipment,utility connections and potential hazards.utility connections and potential hazards.utility connections and potential hazards.utility connections and potential hazards.utility connections and potential hazards.Repair should be performed only by a qualifiedRepair should be performed only by a qualifiedRepair should be performed only by a qualifiedRepair should be performed only by a qualifiedRepair should be performed only by a qualifiedservice provider.service provider.service provider.service provider.service provider.Failure to do so could result in reduced perfor-Failure to do so could result in reduced perfor-Failure to do so could result in reduced perfor-Failure to do so could result in reduced perfor-Failure to do so could result in reduced perfor-mance of the unit, serious personal injury ormance of the unit, serious personal injury ormance of the unit, serious personal injury ormance of the unit, serious personal injury ormance of the unit, serious personal injury ordeath.death.death.death.death.This guide contains service checks to assist servicepersonnel in locating and correcting any malfunction thatmight occur to render the air cleaner ineffective or inop-erative. The air cleaner has been designed with replace-able components, such as the high-voltage power supplyand air flow switch. This allows the serviceman to replacea faulty component rather than attempt repairs of suchcomponents in the field.All voltage measurements indicated can be made with ahigh voltage D.C. probe and a general purpose volt ohmmeter. For example: Simpson 260 or equivalent.For test purposes, the air flow switch may be “wired out”of the system. This will eliminate the need for air flowacross the sensing thermistor to energize the powersupply (see Fig 23).NOTE: All tests to be performed with the Ozone Reduc-tion Jumper intact.NOTE: When servicing the power pack components, allwiring must be routed to factory specifications.120 VACConnectorL1 L2OperatingLightON/OFFSwitchPower PackAssemblyCover Assembly(If Required)Airflow SwitchCell Contact& InsulatorWhtBluWht/Brn/Air FlowBlkPowerSupplyGndRedBlkWhtBlkWht/BrnWhtWhtBlkBlu