OIL-FREE ROTARY SCREW AIR COMPRESSORS

1 H-SERIES Variable Frequency DriveWATER-COOLED* TWO-STAGE Dimensions and Specifications Typical, do not use for construction. (Drawings are provided with order acknowledgement.) Air** *For air-cooled requirements, refer to Bulletin KNWA/H VFD**Capacity at 125 PSIGKNW/H VFD (0412)Printed in InCompressorAir OutWater OutWater InLHAutomaticDrainsOIL-FREE ROTARY SCREWAIR COMPRESSORSP ackaged AssemblynAir-cooled or water coolednIntegral air -cooled or water-cooled aftercooler withmoisture separator andautomatic drainnCabinet ventilating fannEasy access for maintenancenRemovable doorsnLow installation costnFew connections required forinstallation compressed air ,condensate drains, electricaland water (when required)nWye Delta motor starter(460 volt standard)

2 NCSA certified panelAdvanced DesignnSuper Rotor delivers more cfmper horsepowernPatent numbers 4583927& 4671749 Efficient ControlnLoad/unload electro-pneumaticnLow unload horsepowerVibration FreenNo vibration generated inrotary designnNo special foundation requirednVariable frequency drive availablenEnergy saving heat of compressiondr yer availableStandard and optionalequipment subject to changewithout Equipment and Safety DevicesControls andInstrumentationService IndicatorsnAir inlet filter conditionindicatornOil filter condition indicatornOil level gaugenRoutine maintenancePressure IndicatorsnFirst stage air dischargepressurenSecond stage air dischargepressurenOil pressureTemperature IndicatorsnFirst stage air dischargenSecond stage air inletnSecond stage air dischargenLube oilnCompressor dischargetemperatureAdditional IndicatorsnStand-by mode lightnOil pump run lightnFan run lightnCompressor run lightnCompressor laod lightnAlarm lightnHour meter running timenHour meter loaded

3 TimenManual unload light andswitchnPre alarmsSafety DevicesAll safety shutdowns, indicated bymessage on display and alarm lightnCompressor motor overloadshutdown lightnOil pump motor overloadshutdown lightnFan motor overload shutdownlightnHigh first stage air dischargetemperature shutdown and lightnHigh second stage suctiontemperature shutdown and lightnHigh second stage air dischargetemperature shutdown and lightnHigh oil temperature shutdownand lightnLow oil pressure shutdown andlightnHigh cabinet temperatureshutdown and lightnStarter failure lightnTemperature

4 Pre-shutdownalarmsnCompressor dischargetemperature shutdown andalarmAdditional DevicesnStart/stop push buttonsnLamp testnAudible alarmnAcknowledge switchnReset switchnCommon alarm contacts forremote indicationnEvent alarm lognInternet optionsnColor monitor optionsAdditional Features14650 SW 72nd Av enuePortland, Oregon Box 230429 Portland, Oregon 97281-0429 Phone (503) 639-0808 Fax (503) 639-0111E-mail: BY.