JAC S1 - Page 32

Airconditioner(evaporatorand
blowerunit)
Airconditionerisinsideoftheevap鄄
orator,whichisbackoftheglove
box.Thisunitcanreduceforeignma鄄
terialsthatcomeintovehicleandfil鄄
terwithair.
Mainpointsforoperation院
音 Whenyougetintothevehicle,
andthetemperatureishigh,youcan
openthewindowtodischargewarm
air.
音 Whenusingtheairconditioner,
closeallthewindowstoblockthe
heatoutsideofthevehicle.
音 Whendrivingonjammedregion
slowly,youshouldshifttolowgear.
Thiscanincreasetheenginespeed
andthespeedofairconditioner
compressor.
音 Whendrivingonsteeproad,you
shouldturnofftheairconditionerto
avoidengineoverheat.
音 Inwinterorintheseasonwhenair
conditionerisnotoftenused,theair
conditionermustbeoperatedoncea
month.Thatwillhelplubricantcircu鄄
lationandkeepthenormaloperation
ofthesystem.
Stereounit
Howtooperateaudioofauto鄄
mobile?
indoorair
outdoorair
filter
indoorair
blowerfan
evaporatorcore
heatercore
Caution院
音 Theairfiltershouldbere鄄
placed every year or each
20,000km (12,000miles).Ifthe
vehiclerunsonbadroad,such
asdustyorcraggedroad,the
airfiltershouldbecheckeda鄄
gainandagain,anditshouldbe
replacedwhennecessary.
音 Iftheventilatingairreduces
suddenly,youmustasktheau鄄
thorizedJACdealertocheck.
FMreceivingstation
Ionosphere
CharacteristicsofJACvehicle
52
AMandFMsignalsaresentfrom
transmittingstationsaroundthecity.
Aftertheantennaoftheradiore鄄
ceivesthesignal,thesoundwillbe
sentoutfrommicrophone.Ifhighsig鄄
naltouchesyourvehicle,theradio
canoperateexactly.Ifthesignalis
loworunclear,itmayberelatedto
the distance, and related to the
building,bridgeandotherstructures
thatblockoffsignal.
AMreceivingstationgenerallyhas
betterreceivingeffectthanFM,be鄄
causeAMwaveistransmittedatlow
frequency. These low frequency
wavescanfollowtheionosphereof
earthcurvature.
Inaddition,theycangetroundbarri鄄
ertoprovidebettersignal.Thus,in
widerange,AMsignalscanbebet鄄
terreceivedthanFMradiosignals.
FMradioreceiveshighfrequency
signalsthatcannotbendwiththe
earthcurvature.So,FMradiocanon鄄
lyreceivesignalwhichisnearto
servicestation.Inthesameway,FM
signalwillbeinfluencedbyhigh
building,highmountingorotherbar鄄
rier.Thesereasonsmayleadtoun鄄
clearsound.Thefollowingphenome鄄
naarenormal;donotregardthemas
radio'smalfunction.
音 Sometimesthesoundisstrong,
sometimesthesoundisweak--
whenyourvehicleisfarfromservice
station,thesignalwillbecomeweak
Ionosphere
AMreceivingstation
FMradiostation
highmountain
highbuilding
regionwithbarrier
regionwithout
barrier
steelbridge
53