VIAIR 28021 - Operating Instructions and Safety; Thermal Overload Protector Operation; Recommended Relay Wiring

OPERATING INSTRUCTIONS
1. IMPORTANT:AlwaysoperatethecompressoratorbelowtheMAXIMUMPRESSURERATINGof
 thecompressor.PleaserefertoApplication&SpecicationsSectionsofthismanualfordetails.
2.AlwaysobservetheMAXIMUMDUTYCYCLEoftheaircompressor.RefertoCompressor
 ApplicationsandSpecicationsSectionsofthismanualfordetails.Operationexceeding
 maximumpressureratingsand/ordutycyclewillresultindamagetotheaircompressor.
3.YouraircompressorisequippedwithanAUTOMATICTHERMALOVERLOADPROTECTOR.
 Thisfeatureisdesignedtoprotecttheaircompressorfromoverheatingandcausingpermanent
 damagetoyouraircompressor.Thethermaloverloadprotectorwillautomaticallycutpowerto
 youraircompressorshouldtheinternaloperatingtemperatureoftheaircompressorriseabove
 safelevelsduringexcessiveuse.
4. Should at any time during use, your air compressor automatically shuts off; do not attempt to
restart the air compressor. Turn off power and allow unit to cool for about 30 minutes. This will
 allowtheThermalOverloadProtectortoresetsoyoucansafelyresumeuseoftheaircompressor.
5.Topreventdischargeofyourvehicle’sbattery,andenhanceperformance,keepthevehicle’s
engine running while using the compressor.
6.Onlyoperatecompressorinwellventilatedareas.
7. The use of a relay is strongly recommended for installation of this compressor, but is not included.
 (40-amprelayvalueorhigher).
MAINTENANCE & REPAIRS
1.Periodicallycheckallelectricalandttingconnections.Cleanandtightenasneeded.
2.Periodicallycheckallmountingscrews.Tightenasneeded.
3.Replaceairlterelementperiodically.Replacementfrequencydependsonoperatingfrequency
 andoperatingenvironment.Forfrequentuseindustyenvironments,werecommendthatyou
 replaceairlterelementatleastonceamonth.
4.Regularlycleandustanddirtfromcompressorcoolingnsandmotorhousing.
5.Youraircompressorisequippedwithpermanentlylubricated,maintenance-freemotor.
 Nevertrytolubricatecompressor.
6.AllrepairsshouldbeperformedbyManufacturerorManufacturer’sAuthorizedService
 Agenciesonly.
CAUTION:
Nevertouchtheaircompressororttingsconnectedtotheaircompressorwithbarehands
duringorimmediatelyafteruse.LeaderhoseandttingsconnectedtoLeaderHosewillbecome
veryhotduringandafteruse.Ifnecessary,wearheatresistantglovestohandlettings,airline,
and leader hose.
USER MANUAL
280C Air Compressor Kit
RELAY WIRING SCHEMATIC
Pressure Switch
86
Fused
12-Volt
30
To Ground
85
87
Compressor
(+) Lead