A.O. Smith T-H3-DV User Manual

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 p. 22
to 24.
• 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.
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.
Horizontal Installaon
Wall
Sidewall vent
terminaon
Hanger
Hanger
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A.O. Smith T-H3-DV Specifications

General

Brand	A.O. Smith
Model	T-H3-DV
Category	Water Heater
Language	English