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Owner’s Manual - Page 4

For 4031350.

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4
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3.5 Resettable Circuit Breaker
The12AMPthermalresponseresettablecircuitbreaker
protectstheunitanddevicesconnectedtoitsduplexGFCI
outlet.
The circuit breaker is designed to sense the total current
drawthroughthecircuit.Thecircuitbreaker“trips”when
morethan12ampsofelectricalcurrentaredrawnthrough
thedevice’spowercord.Shouldanover-currentcondition
occur, the GuardianR on-board circuit breaker prevents
nuisancevisitstoaremotepowerjunctionbox.
IMPORTANT: Total amperage of the GuardianR plus all
devices plugged into the receptacle must not exceed 12
amps. The circuit breaker will not allow for loads in excess
of 12 amps, although there is a time delay before the
overloaded circuit is broken.
IMPORTANT: When the Phoenix GuardianR is plugged into
a standard “powered” wall outlet the Phoenix GuardianR’s
duplex outlet is electrically “HOT” and AC voltage is present.
3.6 GFCI Protection and the On-Board Duplex
VAC Outlet
ThestandardACvoltageoutletGFCI(GroundFaultCircuit
Interrupter)protectionpromotesoperatorsafetyinwet
applications.GFCIdevicestripwhenafaulttoelectrical
“ground”issensed.
ItisrecommendedtochecktheGFCIprotectionpriorto
operation.Tocheck,pushthe“TEST”buttonlocatedonthe
GFCIduplexoutlet.Ifoperatingproperlythe“RESET”button
ontheGFCIoutletwillpopout.AtrippedGFCIisindicated
byasmallLED.Thedevicecanonlybe“RESET”whenthe
GuardianRisconnectedtoawalloutletprovidingstandard
voltage.ThisduplexACoutletallowstheinter-connection
ofotherACpowereddevices.Thesumtotalamperageof
alldevicespluggedintothereceptaclemustnotexceed10
amps.
3.7 Servicing
Before each use inspect for damage, blocked inlet or outlet.
InspecttheGFCItoensureitisnotina“tripped”condition.
Push“RESET”toresettheGFCI.
WhenthePhoenixGuardianRisrstturnedon,checkfor
excessivevibration.Iftheunitvibratesexcessivelyorif
impeller rubs on housing, turn off the unit immediately. Have
a service technician inspect the unit to locate the problem.
4 Maintenance
Use extreme caution when changing the HEPA filter as
hazardous material could be trapped in the media. Always
make sure to dispose of filters in the appropriate way. If you
are unsure of how to safely dispose of any filter-consult an
industrial hygienist to ensure that all hazardous materials
are contained and disposed of properly.
4.1 Air Filters
The standard Phoenix GuardianR HEPA System is equipped
withtwoltersthatprogressivelylteroutsmallerparticles.
Anoptionalactivatedcarbon/potassiumpermanganatelter
canbealsoadded.Theseltersmustbecheckedregularly.
Operatingtheunitwithdirtylterswillreducetheairow,but
willdonoharmtotheunit.Theunitcanberunindenitely
withdirtylters.
Thetwostandardltersusedarelistedbelow(asinstalledin
theunitfromtoptobottom):
A. 25to30%efcient(perASHRAE52.1-1992),MERV-7,
pleatedfabricpre-lter.
B. 99.97%DOPefcientHEPAlter.
4.2 Filter replacement
4.2A Whentheamber“lterchangelight”illuminates.Itmay
betimetoreplaceoneorbothlters.
Tocheckairowaccurately,anairowmeteroranemometer
mustbeused:
·Whenthelterchangelightilluminates;removeallducting
andrunonhighspeed.ifthelterlightremainslit;replace
thepre-lterandrunonhighagain.Ifthelightremains;
itistimetoreplacetheHEPAlterforfull500CFM
performance.
Airowonhighspeedwithalllterscleanandnoductingis
slightlyover500CFM.Theunitcanberunwithverydirty
ltersandvirtuallynoowwithoutharmingtheunit.The
operator’sdecisiontochangeltersshouldbebasedonlter
costvs.theunit’slteringeffectiveness.Ifairowis250CFM
vs.500CFM,theunitwilllterparticlesfromaspaceathalf
the rate. The operator must judge if that is acceptable.
Iftheoperatordeterminestheltersshouldbechangeddue
tolowairow,itismosteconomicaltochangetheminthe
followingorder:
Changethepre-lter(top)rst.Thisistheleastexpensive
lter.Rechecktheairow.Iftheairowisacceptable,no
otherltersneedtobechanged.
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