20
InstallatIon of vent sYsteM
Beforebeginninginstallationofpipingsystemthoroughlyread
the section of this manual VENT PIPE PREPARATION.
Ifyou are installing your system so that it vents through roof,
pleaserefer to section  titled INSTALLATION OF VERTICAL
VENT SYSTEM.
vent terMInal InstallatIon, sIdewall
1. Installtheventterminalbyusingthecoverplateasatemplate
tomarkthehole fortheventpipeto passthroughthewall.
BEWARE OF CONCEALED WIRING AND PIPING INSIDE
THE WALL.
2.If theVent Terminal isbeing installedon theoutside ofa
finishedwall,itmay beeasiertomark boththeinsideand
outsidewall.Alignthe holesbydrillinga holethroughthe
centerofthetemplatefromtheinsidethroughtotheoutside.
Thetemplatecannowbepositionedontheoutsidewallusing
thedrilledholeasacenteringpointforthetemplate.
3.A)MASONRYSIDEWALLS
 Chiselanopeningapproximatelyonehalfinch(1.3cm)larger
thanthemarkedcircle.
 B)WOODENSIDEWALLS
 Drillapilotholeapproximatelyonequarterinch(0.64cm)outside
ofthemarkedcircle.Thispilotholeisusedasastartingpoint
forasaws-all orsabre sawblade. Cutaroundthe marked
circlestayingapproximatelyonequarterinch(0.64cm)outside
oftheline. (Thiswill allowthe venttoeasily slidethrough
theopening. The resulting gap will be covered up by the
VentTerminalcoverplate.)Repeatthissteponinsidewallif
necessary.
SEQUENCE OF INSTALLATIONS, FIGURE 18A
CutalengthofPVCpipeabout3.5inches(8.9cm)l ongerth anthe
wallthicknessat theopening. Gluethe ventterminal tothis
sectionofpipe .Slidethewallplate overthepipetostopaga inst
theventterminal.Placeabeadofcaulking(notsupplied)around
thegapbetween thepipe andcover plate.Apply enoughto
fillsomeofthegapbetweenthepipe andwall.Placesomeof
thecaulkingonthebackoftheplatetoholditagainstthewall
afterinstallation.Iftheventpipeisinstalleduptothewall,with
acouplingonthe endagainstthewall opening,thepipe with
theventterminal canbe preparedfor gluingbeforeinserting
throughthe wall.  Slide the pipe through the wall and insert
intothecouplingontheothersideofthewall,makingsurethat
theventterminalends uppointedin thecorrectposition,see
Figure18A.
VENT TERMINATION - FIGURE 18A.
dIrect ventInG
Theairintakeprovidedontheunitcontainsameshscreentoprevent
largeparticlesfromenteringtheunit.
FIGURE 18B.
WHEN THE UNIT IS TO BE SETUP AS A DIRECT VENT, THE
MESH SCREEN MUST BE REMOVED. THE INLET VENT PIPE
MAYTHENBEGLUEDTOTHEAIRINTAKE(SeeFigure18B)
PROVIDED ON THE UNIT. THE SCREEN REMOVED FROM THE
INTAKENEEDSTOBEINSERTEDINTOTHE2”-22.5DEGREE
VENT TERMINAL SUPPLIED IN THE VENT TERMINAL KIT.
dIrect vent terMInal InstallatIon IMportant
THIS UNIT CONSISTS OF TWO VENT TERMINALS - AN INTAKE
VENT TERMINAL AND AN EXHAUST VENT TERMINAL. THE INTAKE
VENTTERMINALISA2”22.5°PVCELBOW(-)WITHAMESHWIRE
SCREENANDTHEEXHAUSTVENTTERMINALISA2”22.5°PVC
ELBOW WITH A MESH WIRE SCREEN.
NOTE: TO PREVENT EXHAUSTING PRODUCTS FROM
CIRCULATING TO THE AIR INTAKE IN WINDY/COLD AREAS,
THE MAXIMUM PRACTICAL DISTANCE BETWEEN THESE TWO
TERMINALS IS RECOMMENDED.
FIGURE 18C.
WHEN LOCATING THE TERMINALS ON A SIDEWALL, THE
FOLLOWING SPECIFICATIONS PERTAINING TO TERMINAL
LOCATION MUST BE FOLLOWED.
1.Theintakeairterminalandtheexhaustventterminalmustterminate
onthesame��� exteriorwallandmust beseparatedby aminimumof
24”(61cm)onverticalcenterline(seeFigure18C).Incolderclimates
increasingthe 24” (61cm) minimum will reduce possibility of frost
overfromsidewindsblowingexhaustvapors totheairintakeofthe
direct vent.
2.Thehorizontalcenterlineoftheintakeairterminalmaynotbelocated
lowerthanthehorizontalcenterlineoftheexhaustventterminal(see
Figure18C).