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• Areadily a ccessible manual shut o ffvalve inthegassupply
line serving t hewater h eater, and
• A drip leg(sediment
trap) a head o fthegas control valve t ohelp
prevent dirt and foreign materials
from entering
the gas control valve.
• Aflexible g asconnector oraground j ointunion between the
shut o ffvalve and control valve t opermit servicing oftheunit.
Besuretocheck a llthegaspiping f orleaks before l ighting t he
water heater. U se a soapy w ater s olution, not a match o ropen
flame. R inse o ffsoapy s olution a nd wipe dry.
Theminimum inletgaspressure shown o ntherating plate is
that w hich will p ermit firing attherated input.
Breathing
Hazard - Carbon
Monoxide
Gas
High
altitude
orifice
must
be installed
for operations above 2,000 ft. (610 m).
Contact a qualified installer or service
agency.
Breathing carbon monoxide can cause brain damage or
death. Always read and understand instruction manual.
If a standard
model
is installed
above
2,000
feet (610 m) the
input rating
should
be reduced
at the rate of 4 percent
for each
1,000 feet (305 m ) above sea level which
requires
replacement
of the burner
orifice
in accordance
with National
Fuel Gas Code
ANSI
Z223.1/NFPA
54. Contact
your
local
Sears
Service
Center
or local
gas supplier
for further
information.
Failure
to replace
the
standard
orifice
with
a high
altitude
orifice
when
installed
at elevations
above
2,000
feet (610
m)
could
result
in improper
and
inefficient
operation
of the
appliance,
producing
carbon
monoxide
gas in excess
of safe
limits,
which
could
result
in serious
injury
or death.
Contact
your
local
Sears
Service
Center
or local
gas supplier
for any
specific
changes
which
may
be required
in your
area.
Fire
and
Explosion
Hazard
• Use joint compound
or tape
com patible with propane.
• Leak
test
before
operating
heater.
• Disconnect
gas
piping
and
shut-off
valve
before
pressure
testing system.
The appliance
and its gas connection
must be leak tested
before
placing
the appliance
in operation.
The appliance
and its individual shut-off valve shall be disconnected
from the gas supply
piping system
during
any pressure
testing
of
that system
at test pressures
in excess
of 1/2 pound
per square
inch (3.5 kPa). It shall be isolated from the gas supply piping system
by closing its individual
manual shut-off
valve during any pressure
testing
of the gas supply
piping system
at test pressures
equal to
or less than 1/2 pound
per square
inch (3.5 kPa).
Connecting
the gas piping to the gas control
valve
of the water
heater can be accomplished
by either of the two methods
shown
in Figures
20 and 21.
Sediment
Traps
Fire and Explosion
Hazard
Contaminants
in gas
lines
can
cause fire or explosion.
Clean
all
gas
piping
before
installation.
° Install drip leg in accordance
with
NFPA54.
Contaminants
in the gas lines may cause
improper
operation
of
the gas control valve
that may result in fire or explosion.
Before
attaching
the gas line be sure that all gas pipe is clean on the
inside. To trap any dirt or foreign
material
in the gas supply
line, a
drip leg (sometimes
called a sediment
trap) must be incorporated
in the piping.
The drip leg must be readily
accessible.
Install
in
accordance
with
the Gas Piping
section.
Refer
to the current
edition
of the National
Fuel Gas Code, ANSI Z223.1/NFPA
54.
A sediment
trap shall be installed as close to the inlet of the water
heater
as practical
at the time of water
heater
installation.
The
sediment
trap shall be either a tee fitting with a capped nipple in the
bottom outlet or other device
recognized
as an effective sediment
trap. If a tee fitting is used, it shall be installed in conformance
with
one of the methods
of installation,
shown in Figures 20 and 21.
GROuUN_JNOINT
GAS CONTROL
(OPTIONAL)
CAP
FIGURE 20. GAS PIPING WITH FLEXIBLE CONNECTOR.
17
GROUND
JOINT
UNION
BLACK
PiPE
(OPTIONAL)
GAS
CONTROL
VALVE
3" MIN_)_
(76,2 m
CAP
FIGURE
21. GAS PiPiNG WITH ALL
BLACK
IRON PmPE TO GAS CONTROL.
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