Giant
Manual
27
Final
Checklist
□
The
water
heater
is
not
exposed
to
corrosive
compounds
in
the
air.
□
The
water
heater
loca on
complies
with
the
clearances.
□
The
water
supply
does
not
contain
chemicals
or
exceed
total
hardness
that
will
damage
the
heat
exchanger.
□
Ensure
the
water
heater
and
its
water
lines
are
protected
from
freezing.
Damage
due
to
freezing
is
not
covered
by
the
warranty.
□
Con
fi
rm
that
the
electricity
is
supplied
from
a
120
VAC,
60
Hz
power
source,
is
in
a
properly
grounded
circuit,
and
turned
on.
□
The
installa on
must
conform
with
local
codes
or,
in
the
absence
of
local
codes,
with
the
Na onal
Fuel Gas Code, ANSI Z223.1/NFPA 54
,
or
the
Natural Gas and Propane Installa on Code, CSA
B149.1
.
□
Verify
proper
clearances
around
the
vents
and
air
intakes.
□
Ensure
that
the
Combus on
Air
Requirements
are
followed
that
will
provide
su
ffi
cient
combus on
air
for
the
appliance.
□
Ensure
you
have
used
the
correct
ven ng
products
for
the
model
installed
and
that
you
have
completely
followed
the
ven ng
manufacturer’s
installa on
instruc ons
and
these
installa on
instruc ons.
□
The
water
heater
must
be
vented
ver cally
to
the
outside
of
the
building
or
structure.
□
Purge
the
water
line
of
all
debris.
Debris
will
damage
the
water
heater.
Use
a
bucket
or
hose
if
necessary.
□
Ensure
the
water
heater
is
vented
in
accordance
with
Na onal Fuel Gas Code, ANSI Z223.1/NFPA
54
‐
latest
edi on
and
the
requirements
of
state
or
local
codes.
□
Ensure
that
hot
and
cold
water
lines
are
not
crossed
to
the
unit
and
are
leak
free.
□
Clean
the
inlet
water
fi
lter
by
fi
rst
powering
OFF
the
water
heater.
Remove
the
lower
enclosure.
Drain
and
relieve
the
pressure
from
the
system.
Remove
and
clean
the
fi
lter
of
any
debris
that
may
reduce
water
fl
ow.
Once
clean,
replace
the
fi
lter.
Close
the
drain
valve
and
pressurize
the
system.
Power
the
unit
back
ON
and
set
desired
temperature.
For
more
informa on
on
cleaning
the
fi
lter
please
reference
page
39
sec on
C
.
□
Ensure
that
the
temperature/pressure
relief
valve
is
installed.
□
Check
for
proper
water
pressure
to
the
water
heater.
Minimum
water
pressure
is
20
psi.
A
water
pressure
of
30
‐
50
psi
is
recommended
for
maximum
performance.
□
A
manual
gas
control
valve
has
been
placed
in
the
gas
line
to
the
water
heater.
□
Check
the
gas
lines
and
connec ons
for
leaks.
□
Con
fi
rm
that
the
gas
inlet
pressure
is
within
limits.
□
Con
fi
rm
that
the
water
heater
is
rated
for
the
gas
type
supplied.
□
An
extension
cord
or
an
adapter
plug
has
not
been
used
with
the
water
heater.
□
Verify
the
system
is
func oning
correctly
by
connec ng
your
manometer
to
the
gas
pressure
test
port
on
the
water
heater.
Operate
all
gas
appliances
in
the
home
or
facility
at
high
fi
re.
The
inlet
gas
pressure
at
the
water
heater
must
not
drop
below
that
listed
on
the
ra ng
plate.
□
Ensure
the
lower
enclosure
is
installed.
□
Explain
to
the
customer
the
importance
of
not
blocking
the
vent
termina on
or
air
intake.
□
Explain
to
the
customer
the
opera on
of
the
water
heater,
safety
guidelines,
maintenance,
and
warranty.
□
Inform
the
consumer
of
the
importance
of
good
water
quality
and
its
e
ff
ects
on
the
warranty.
□
Leave
the
en re
manual
taped
to
the
water
heater,
or
give
the
en re
manual
directly
to
the
consumer.
