Takagi T-H3M-IN/OS - Manual (Page 14)

14
Page
Installation
Installation Manual
3 inch vent installation
1. Connect a 3" elbow directly on the
intake vent collar of the water heater
2. Connect a 3" coupling directly on the
exhaust vent collar of the water heater
Make sure the couplings engage
the o-rings installed in the intake
and exhaust vent collars
3. Connect a 3" straight pipe to
the coupling
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
Make sure the couplings engage
the o-rings installed in the intake
and exhaust vent collars
2. Connect 3" straight pipes to the
couplings
For details of the optional items, refer to the Installation manual for each optional item
Vent connections for two-pipe Vent connections for single pipe
3" coupling
3" straight pipe
Exhaust
vent collar
(Female)
* 3" elbow with
bird screen
Intake vent
collar
(Female)
*The water heater came with a metal screen
that will fit into a 3 inch elbow
For details of the optional items, refer to the Installation manual for each optional item
1. Connect 3"x4" increasers
directly on the exhaust and intake
vent collar of the water heater
Make sure the couplings engage
the o-rings installed in the intake
and exhaust vent collars
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
4" straight pipe
3"x4" increaser
Exhaust vent
collar (Female)
* 3" elbow with
bird screen
Intake vent
collar
(Female)
1. Connect a 3" elbow directly on the
intake vent collar of the water heater
2. Connect a 3"x4" increaser directly on
the exhaust vent collar of the water
heater
Make sure the couplings engage
the o-rings installed in the intake
and exhaust vent collars
3. Connect a 4" straight pipe to
the increaser
Vent connections for two-pipe Vent connections for single pipe
*The water heater came with a metal screen
that will fit into a 3 inch elbow
4 inch vent installation