Takagi T-H3-DV - Direct-Vent and Single Vent Illustrations

19 Page
-Direct-vent and single vent Illustraons-
<Howtoinstallstainlesssteelventwiththeindoormodels>
• Regardingtheclearancesfromtheexhaustterminaltotheairinletoropening,refertothe
next few pages.
• Follow all vent system manufacturer’s instructions and all local codes.
• Use4”CategoryIII/IVapprovedorSpecialBH,singleordoublewallstainlesssteelventpipe.
HorizontalInstallaon
Wall
Sidewall vent
terminaon
VercalInstallaon
Roof
Roofashing
Fire stop
Raincap
4"ventconneconfordirect-ventinstallaon
4”stainlesssteel
vent straight pipe
Exhaust vent collar
of the Indoor models
(Female)
Intake vent collar
(Female)
4”stainless
steel vent
straight pipe
Installaon
Installaon Manual
Typicalinstallaonsusingstainlesssteelvents
Exhaust vent collar
of the Indoor models
(Female)
4”stainlesssteel
vent straight pipe
Intake vent collar
(Female)
4” elbow with
bird screen
1. Connecta4"stainlesssteelvent
straight pipes directly on the
exhaust vent collar of the
water heater.
2. Connecta4"elbowdirectly
on the intake vent collar of the
water heater.
1. Connect4"stainlesssteelvent
straight pipes directly on the
exhaust/intake vent collar of the
water heater.
4"ventconneconforsingleventinstallaon
• The diagram above shows direct-vent installations. For single vent installation, connect a 4" elbow
directly on the intake vent collar instead of a straight pipe. See the instructions below for the detail.
• For details of the optional items, refer to the Installation manual for each Optional item.