Installation
12
│
Page
Improper
venting
of
this
appliance
can
result
in
excessive
levels
of
carbon
monoxide
which
can
result
in
severe
personal
injury
or
death.
Improper
installation
can
cause
nausea
or
asphyxiation,
severe
injury
or
death
from
carbon
monoxide
and
flue
gases
poisoning.
Improper
installation
will
void
product
warranty.
When
installing
the
vent
system,
all
applicable
national
and
local
codes
must
be
followed.
If
you
install
thimbles,
fire
stops
or
other
protective
devices
and
they
penetrate
any
combustible
or
noncombustible
construction,
be
sure
to
follow
all
applicable
national
and
local
codes.
VENTING
INSTRUCTIONS
‐
General
‐
The
water
heater
must
be
vented
in
accordance
with
the
section
“Venting
of
Equipment"
of
the
latest
edition
of
the
National
Fuel
Gas
Code:
ANSI
Z223.1/NFPA
54
in
the
United
States
and/or
Section
7
of
the
CAN/CSA
B149.1
Natural
Gas
and
Propane
Installation
Code
in
Canada,
as
well
as
applicable
local
building
codes.
Hydro
‐
Smart
recommends
the
“T
‐
Vent”
line
manufactured
by
TAKAGI
(Refer
to
“T
‐
Vent”
brochure
for
details).
However,
the
following
are
also
UL
listed
manufacturers:
ProTech
Systems
Inc.
(FasNSeal),
Flex
‐
L
Inc.,
Z
‐
Flex
Inc.
(Z
‐
Vent
III),
Metal
‐
Fab
Inc.,
and
Heat
‐
Fab
Inc.
(Saf
‐
T
Vent).
General
rules
for
venting
water
heaters
are:
Place
the
water
heater
as
close
as
possible
to
the
vent
terminator.
The
vent
collar
of
the
water
heater
must
be
fastened
directly
to
an
unobstructed
vent
pipe.
Do
not
weld
the
vent
pipe
to
the
water
heater’s
vent
collar.
Do
not
cut
the
vent
collar
of
the
unit.
The
vent
must
be
easily
removable
from
the
top
of
the
water
heater
for
normal
service
and
inspection
of
the
unit.
The
water
heater
vent
must
not
be
connected
to
any
other
gas
appliance
or
vent
stack.
Avoid
using
an
oversized
vent
pipe
or
using
extremely
long
runs
of
the
pipe.
For
rooftop
venting,
a
rain
cap
or
other
form
of
termination
that
prevents
rain
water
from
entering
into
the
water
heater
must
be
installed.
Do
not
common
vent
or
connect
any
vent
from
other
appliances
to
the
water
heater
vent.
General
rules
for
vent
terminations:
Avoid
locating
the
water
heater
vent
terminator
near
any
air
intake
devices
.
These
fans
can
pick
up
the
exhaust
flue
products
from
the
water
heater
and
return
them
to
the
building.
This
can
create
a
health
hazard.
Locate
the
vent
terminator
so
that
it
cannot
be
blocked
by
any
debris,
at
any
time.
Most
codes
require
that
the
terminator
be
at
least
12
inches
above
grade,
but
the
installer
may
determine
if
it
should
be
higher
depending
on
the
job
site
condition
and
applicable
codes.
A
proper
sidewall
terminator
is
recommended
when
the
water
heater
is
vented
through
a
sidewall.
Regarding
the
clearances
from
the
exhaust
terminator
to
the
air
inlet
or
opening,
refer
to
the
next
few
pages.
CAUTION
DANGER
