Takagi T-H3-DV - Two-Pipe Direct-Vent Illustrations

16 Page
-Two-pipe, direct-vent illustraons-
For details of the optional items, refer to the Installation manual for each optional item.
<Howtoinstallintakeandexhaustventing(two-pipe,direct-vent)withtheindoormodels>
3"ventconnecon
From3"to4"ventconnecon
Installaon
Installaon Manual
3”coupling
Exhaust vent collar
(Female)
3”straightpipe
3”coupling
Intake vent collar
(Female)
3”straightpipe
1. Connect3"couplingsdirectlyonthe
exhaust and intake vent collar
of the water heater.
2. Connect3”straightpipestothe
couplings.
1. Connect3"x4"increasers
directly on the exhaust and intake
vent collar of the water heater.
2. Connect4”straightpipesto
the increasers.
4”straightpipe
3"x4" increaser
Exhaust vent collar
(Female)
Intake vent collar
(Female)
4”straightpipe
3"x4" increaser
HorizontalInstallaon
VercalInstallaon
Roof
ashing
Roof
Fire stop
Wall
Connect between exhaust vent collar and piping.
Seetheinstruconsbelow.
Typicalinstallaonsusing PVC, ABS, or polypropylene vent