Initial
Operation
34
│
Page
•
Check
the
GAS
and
WATER
CONNECTIONS
for
leaks
before
firing
unit
for
the
first
time.
•
Open
the
main
gas
supply
valve
to
the
unit
using
only
your
hand
to
avoid
any
spark.
Never
use
tools.
If
the
knob
will
not
turn
by
hand,
do
not
try
to
force
it;
call
a
qualified
service
technician.
Forced
repair
may
result
in
a
fire
or
explosion
due
to
gas
leaks.
•
Be
sure
to
check
for
the
presence
of
leaking
gas
toward
the
bottom
of
the
unit
because
some
gases
are
heavier
than
air
and
may
settle
towards
the
floor.
•
Check
the
GAS
PRESSURE.
Refer
to
p.
17.
•
Do
not
try
to
light
the
burner
manually.
It
is
equipped
with
an
electronic
ignition
device
which
automatically
lights
the
burner.
•
Check
for
PROPER
VENTING
and
COMBUSTIBLE
AIR
to
the
T
‐
H2
‐
DV/T
‐
H2
‐
OS.
•
Purge
the
GAS
and
WATER
LINES
to
remove
any
air
pockets.
•
Do
not
use
this
water
heater
if
any
part
has
been
submersed
under
water.
Immediately
call
a
qualified
service
technician
to
inspect
the
water
heater
and
to
replace
any
damaged
parts.
INITIAL
OPERATION
1.
Once
the
above
checks
have
been
completed,
please
clean
filter
of
any
debris.
Refer
to
p.
40
for
instructions.
2.
Fully
open
the
manual
water
control
valve
on
the
water
supply
line.
3.
Open
a
hot
water
tap
to
verify
that
water
is
flowing
to
that
tap.
Then
close
the
hot
water
tap.
4.
Fully
open
the
manual
gas
control
valve
installed.
5.
Turn
on
the
120
volt
60
Hz
power
supply
to
the
T
‐
H2
‐
DV/T
‐
H2
‐
OS
water
heater.
6.
Now
you
are
ready
to
enjoy
hours
of
endless
hot
water.
FOR
YOUR
SAFETY,
READ
BEFORE
OPERATING
IF
YOU
SMELL
GAS:
•
Do
not
try
to
start
the
T
‐
H2
‐
DV/T
‐
H2
‐
OS.
•
Do
not
touch
any
electric
switches;
do
not
use
any
phone
in
your
building.
•
Immediately
call
your
gas
supplier
from
a
neighbor’s
phone.
Follow
the
gas
supplier’s
instructions.
•
If
you
cannot
reach
your
gas
supplier,
call
the
fire
department.
CAUTION
