VIAIR 28021 User manual

Brand: VIAIR

Model: 28021

Category: Air compressors

Type: User manual

IMPORTANT:

It is essential that you and any other operator of this

product read and understand the contents of this manual

before installing and using this product.

SAVE THIS MANUAL FOR FUTURE REFERENCE

USER MANUAL

PART NO. 28021

280C AIR COMPRESSOR KIT

IMPORTANT SAFETY INSTRUCTIONS

CAUTION - To reduce risk of electrical shock or electrocution:

- Donotdisassemble.Donotattemptrepairsormodications.Refertoqualiedservice

 agenciesforallserviceandrepairs.

- Donotusethisproductinanareawhereitcanfallorbepulledintowaterorotherliquid.

- Donotreachforthisproductifithasfallenintoliquid.

- Usethiscompressorwith12-voltDCsystemsonly.

- Thisproductshouldneverbeleftunattendedduringuse.

WARNING - To prevent injury:

- Neverallowchildrentooperatethiscompressor.Closesupervisionisnecessarywhenthis

compressor is being used near children.

- Thiscompressorwillbecomeveryhotduringandimmediatelyafteruse.Donottouchanypartof

this compressor with bare hands during and immediately after use.

- Donotusethisproductnearamesorexplosivematerialsorwhereaerosolproductsarebeingused.

- Donotoperatethisproductwhereoxygenisbeingadministered.

- Do not pump anything other than atmospheric air.

- Neverusethisproductwhilesleepyordrowsy.

- Donotuseanytoolsorattachmentswithoutrstdeterminingmaximumairpressureforthat

tool or attachment.

- Neverpointanyairnozzleorairsprayertowardanotherpersonoranypartofthebody.

- ThisaircompressorisequippedwithAutomaticResetThermalProtector,andcanautomatically

 restartafterthethermalprotectorresets.Alwayscutoffpowersourcewhenthermalprotector

 becomesactivated.

- Wear safety glasses or goggles when operating this product.

- Useonlyinwellventilatedareas.

INSTALLATION

Pleasereadandfollowtheinstallationinstructionscarefullytoavoidinjuryordamagetothe

compressorandyourvehicle.Eachofouraircompressorsandpartshavebeencarefullyproduced

andpackaged.Beforeyoubegininstallation,pleasefamiliarizeyourselfwithInstallationPartsList

(Fig. 1) of this manual.

Guidelines for Selecting Mounting Location:

The selection of proper mounting location for your air compressor will help ensure a long and

troublefreecompressorservicelife.Pleasepay close attention to the following guidelines:

1. Select a FLAT,UPRIGHTANDSECURE location where the compressor can be mounted.

2.Tomaximizeaircompressorperformance,locatecompressorasCLOSETOTHEBATTERY

 aspossiblesothatlengthofpositiveleadwirerequiredisataminimum.

3.ChoosemountinglocationthatisascoolaspossibleandAWAYFROMHEATSOURCES.

 Thecoolertheambienttemperaturethelesschancethecompressorwilloverheat.

4.Thiscompressorismoisture&splashresistant,butNOTWATERPROOF. Do not mount

compressor in locations where the unit is likely to come in contact with water.

5. Select compressor mounting location where air line can be routed from compressor air inlet

 toremoteinletairlter.MakesureRemoteInletAirFilterislocatedinadrylocation,away

from water splashes.

6.Youwillalsowanttoselectcompressor’smountinglocationwheretheleaderhosebracket

can be mounted to secure the 1.5 ft. leader hose.

7.Ifitisnecessarytomounttheaircompressorfartherawayfromthebattery,suchas

 insideyourvehicleorinthebedofyourpickup,useaminimum16AWGpositiveleadwire

for remote installation.

8.Donotmountcompressornearareaswhereammableliquidsarestored.

9.Usethreadsealantforproperttinginstallation.Teontapeisnotrecommended.

 Properlysealed,recommendedtorqueis12to15ft.lbs

USER MANUAL

280C Air Compressor Kit

USER MANUAL

MOUNTING AND WIRING

1. Disconnectgroundcablefromvehicle’sbattery.

2. Temporarily position the air compressor in the location where it will be mounted.

3. Routegroundwiretothenegativepostofthebatteryortoanappropriategroundingpointand

cut ground wire to length as needed.

4. Mountaircompressorwiththefoursetsof13/64”(5mm)bolts,nuts,washers,andlocking

 washersprovided.(SeeFig.2forMountingInstructions)Useofthreadsealantisrecommended.

5. NOTE:ForRemoteInletAirFilterInstallation,refertoRemoteInletAirFilterInstallation

 InstructionsincludedintheRemoteInletAirFilterPack.

6. Thisaircompressorcomeswith1.5ft.heavydutyheatresistantleaderhose.

 Thisleaderhoseisdesignedtoprolongthelifeofyourairline.Donotremovethisleaderhose

from air compressor.

7. IMPORTANT:Pleasenote,theleaderhosethatcomeswithyourcompressormayhaveabuilt-in

 inlinecheckValve.DONOTremoveinlinecheckvalvefromleaderhose.

8. Selectproperlocationtomountleaderhosewithhosebracketprovided.Avoidlocationswhere

leader hose may become tangled with wires and other hoses.

9. Tomounthosebracket,drillholewith3/16”drillbitandpushself–anchoringhosebracketpin

 intohole.Routeleaderhosethroughhosebracketandsecurehosebypressingbracketclamp

into locked position.

10.Toremovehosefromthehosebracket,simplypressdownonthehoseclampreleasetabto

release bracket clamp. (Fig. 3)

11.Connectcompressorpositiveleadwiretooneoftheleadsofyourpressureswitch.

12.Makesurethatyourcompressorsetupisproperlyfused.Forappropriatefusesize,referto

 ampdrawofcompressorintheSpecicationssectionofthismanual.

13.Alwayslocatefuseascloseaspossibletopowersource.

14.Beforeconnectingtopowersource,re-checktomakesurethatallconnectionsare

properly connected.

15.Connectandtestcompressorsystembyrunningthecompressorforashorttimetobuildup

pressure in your air tank.

16.Onceairpressurereachespresetcutoutpressureofyourpressureswitch,thecompressor

will shut off. Inspect all air line connections for leaks with soap and water solution.

 Ifaleakisdetected,theairlinemaynotbecutsquarelyorpushedallthewayin.

Tighten connections if needed.

(Fig. 1) Standard 280C Air Compressor Kit Installation Parts List:

A.HoseBracket(1pc)

B.MountingBolts(4pcs)

C.FlatWashers(8pcs)

D.LockingWashers(4pcs)

E.Nuts(4pcs)

F.RemoteInletAirFilterwithFilterElement(1pc)

G.Screws(2pcs)

REDUCER

A B

D E

(Fig. 2) Compressor

Mounting Hardware

B.MountingBolt

C.FlatWasher

D.LockingWasher

E.Nut

H.VibrationIsolator

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

 Application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)

USER MANUAL

280C Air Compressor Kit

RELAY WIRING SCHEMATIC

Pressure Switch

Fused

12-Volt

To Ground

Compressor

(+) Lead

(Fig. 3) Leader Hose Bracket

I.HoseClamp

J.ClampReleaseTab

K.SelfAnchoringPin

REDUCER

SPECIFICATIONS

280CAIRCOMPRESSORPARTNUMBERS:

•PartNo.28021/280CAirCompressor(CESpec.)

MotorVoltage: 12volts

Max.CurrentConsumption: 20amps

MotorType: Perm.Magnetic

HorsePower: 1/4

Max.WorkingPressure: 150PSI

Max.DutyCycle(@72ºF&100PSI): 30%

MinutesOn/Off(@72ºF&100PSI): 13On/30Off

Max.RestartPressure: 200PSI

Max.AmbientTemperature: 158ºF

Min.AmbientTemperature: -40ºF

Auto.ResetThermalProtection: Yes

Dimensions: 7.8”Lx3.95”Wx6.35”H

NetWeight: 6.95Lbs.

USER MANUAL

280C Air Compressor Kit

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

COMPRESSOR APPLICATION GUIDE

Toensurethatyougetthehighestlevelofsatisfactionfromyourcompressorperformance,referto

information below:

VIAIR COMPRESSOR REFERENCE CHART

COMPRESSORSERIES DUTYCYCLE MAX.WORKINGPRESSURE

   (100PSI@72°F)

090SERIES  9%  120PSI

092SERIES  9%  120PSI

095SERIES  9%  120PSI

097SERIES  10%  130PSI

098SERIES  10%  130PSI

100SERIES  15%  130PSI

250IGSERIES  100%  150PSI

275SERIES  25%  150PSI

280SERIES  30%  150PSI

325SERIES  33%  150PSI

330IGSERIES  100%  150PSI

350SERIES  100%  150PSI

380SERIES  100%  200PSI

   *55%

400SERIES  33%  150PSI

420SERIES  33%  150PSI

444SERIES  100%  200PSI

   *50%

450SERIES  100%  150PSI

450IGSERIES  100%  150PSI

460SERIES  100%  150PSI

480SERIES  100%  200PSI

   *50%

*Duty Cycle at 200 PSI and 72°F.

ABOUT COMPRESSOR DUTY CYCLE:

Dutycyclereferstotheamountoftimeacompressorcanbeoperatedinagiventimeperiodat100

PSI,andastandardambienttemperatureof72°F.Itiscommonlyexpressedinpercentageformat:

Compressorontime÷(ontime+offtime)=DutyCycle%.

ONE-HOUR DUTY CYCLE MINUTES ON /

(100PSI@72°F) MINUTES OFF

9%    5Min.On/55Min.Off

10%    6Min.On/54Min.Off

15%    9Min.On/51Min.Off

20%    12Min.On/48Min.Off

25%    15Min.On/45Min.Off

30%    18Min.On/42Min.Off

33%    19Min.On/41Min.Off

50%    30Min.On/30Min.Off

100%    1HourRunTime

NOTE:Allcompressors,regardlessofrateddutycycle,requiresufcientresttimeinbetweencycles

toallowforpartialorcompleteheatdissipation.Heatdissipationratesmayvarydependingon

ambient temperatures and operating conditions.

ABOUT RATED WORKING PRESSURE:

Toensuretroublefreeservicelifeofyourcompressor,alwaysoperatecompressorwithinrated

workingpressureofthecompressor.Neveruseapressureswitchwithahighercut-offpressurethan

compressor’sratedworkingpressure.

TROUBLESHOOTING GUIDE:

Tank pressure drops when

compressor(s) shut off

1.Loosedraincock

2.Checkvalveleaking

3.Looseconnections

1. Tighten drain cock

2.Replacecheckvalveor

compressor

3.Checkallconnectionswith

soap and water solution

and tighten

Compressorruns

continuouslyandairow

lower than normal

1.Excessiveairusage

2.Looseconnections

3. Worn piston ring or inlet

valve.

4.Cloggedairlterelement

1. Decrease air usage

2.Checkallconnectionswith

soap and water solution

and tighten.

3.Replacecompressor

4.Replaceairlterelement

Compressorruns

continuously causing

safetyvalve(ifequipped)

to open

1. Faulty pressure switch

2.Defectivesafetyvalve

1.Replacepressureswitch

2.Replacesafetyvalve

Excessivemoisturein

discharge

1.Excessivewaterinairtank

2.Highhumidity

1.Draintank,tilttanktodrain.

Draintankmorefrequently

2.Movecompressortoarea

withlesshumidity,oruse

water separator

Compressorwillnotrun 1.Nopower,orpowerswitch

inOFFposition

2. Blown fuse

3.Motoroverheats

4. Faulty pressure switch

(if hooked up to a

pressure switch).

1.Makesurecompressor

switchisON

2. Disconnect compressor

frompowersource,replace

fuse.(RefertoSpecications

section for correct

fuse amperage)

3.Letcompressorscoolofffor

about 30 minutes to allow

thermaloverloadswitchtoreset.

4.Replacepressureswitch

Thermaloverload

protector cuts out

repeatedly

1.Lackofproperventilationor

ambient temperature is too high

2.Compressorvalvesfailed

1.Movecompressortowell

ventilatedarea,orareawith

lower ambient temperature

2.Replacecompressor

Excessiveknocking

or rattling

1.Loosemountingbolts

2. Worn bearing on eccentric or

motor shaft

3.Cylinderorpistonringisworn

1. Tighten bolts

2.Replacebearingor

piston assembly

3.Replacepistonorcompressor

CAUTION: NEVER DISASSEMBLE COMPRESSOR WHILE

COMPRESSOR IS PRESSURIZED.

USER MANUAL

280C Air Compressor Kit

PROBLEM: POSSIBLECAUSE(S) CORRECTIVEACTION

280C Air Compressor Kit

LIMITED WARRANTY:

VIAIRCorporationwarrantsthisproduct,whenproperlyinstalledandundernormalconditionsof

use,tobefreefromdefectsinworkmanshipandmaterialsforaperiodofoneyearfromitsoriginal

dateofpurchase.Toreceivewarrantyserviceorrepair,pleasecontactVIAIRCorporation.

Returnsshouldbemadewithinoneyearofthedateofpurchase,afteraReturnGoodsAuthorization

(RGA)numberhasbeenassignedbyVIAIRCorporation.ToobtainRGA,faxacopyofyourreceipt

to(949)585-0188.Forcompletewarrantydetails,pleasevisit:www.viaircorp.com/warranty

PLEASE NOTE:

THISWARRANTYCOVERSPRODUCTDEFECTSONLY;ITDOESNOTCOVERINCIDENTAL

ORCONSEQUENTIALDAMAGESASRESULTOFMISUSEORABUSE.

AMERICAN WIRE GAUGE GUIDE 12-VOLT:

15EDELMAN•IRVINE,CA92618

TEL:(949)585-0011•FAX:(949)585-0188

www.viaircorp.com

Wiring Diagram:

(Fuse Not Included)

SINGLE “C” MODEL

COMPRESSOR WIRING DIAGRAM

15 Edelman

Irvine, CA 92618

949-585-0011

www.viaircorp.com

Battery

To Keyed

Power Source

12V 40A

Relay

Fuse

Pressure

Switch

Rev.1

USER MANUAL

AmpDraw

Lengthofwirefrombatteryto

compressor (in feet)

5 10 15 20

5 16 16 16 14

10 16 14 12 10

15 16 12 10 10

20 14 10 10 8

25 14 10 8 6

30 12 10 8 6

40 12 8 6 6

50 10 6 6 4

60 10 6 4 4

VIAIR 28021 User manual

Brand: VIAIR

Model: 28021

Category: Air compressors

Type: User manual

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VIAIR 28021 User manual

VIAIR 28021 User manual

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