State PR6 40 NHDST2 - Manual (Page 3)

3
General Safety (cont’d)
WARNING
This water heater must not be installed directly on carpeting.
Carpeting must be protected by a metal or wood panel beneath
the appliance extending beyond the full width and depth of the
appliance by at least 3 inches (76.2mm) in any direction, or if
the appliance is installed in an alcove or closet, the entire floor
must be covered by the panel. Failure to heed this warning may
result in a fire hazard.
WARNING
A gas water heater cannot operate properly without the cor-
rect amount of air for combustion. Provide ventilation and
combustion air by means of floor openings as shown in the
drawings on page 7. Never obstruct the flow of ventilation air.
If you have any doubts or questions at all, call your gas compa-
ny. Failure to provide the proper amount of combustion air can
result in a fire or explosion and can cause DEATH, SERIOUS
BODILY INJURY, OR PROPERTY DAMAGE.
WARNING
If this water heater will be used in beauty shops, barber
shops, cleaning establishments, or self-service laundries
with dry cleaning equipment, it is imperative that the
water heater or water heaters be installed so that com-
bustion and ventilation air be taken from outside these
areas. Refer to the “Locating The New Water Heater” sec-
tion of this manual and also the latest edition of the
National Fuel Gas Code, ANSI Z223.1, also referred to as
NFPA 54 for specifics provided concerning air required.
WARNING
No vent damper installation is compatible with this sealed
combustion water heater design. No vent damper, whether it is
operated thermally or otherwise is to be installed on this
sealed combustion water heater. Alteration of any part of the
vent assembly could result in improper operation due to
restriction of flue gases, spillage of flue gases and may cause
carbon monoxide poisoning.
WARNING
1. The appliance and its individual shutoff valve must be
disconnected from the gas supply piping system dur-
ing any pressure testing of the gas system at test pres-
sures in excess of 1 ⁄
2
pound per square inch (3.5kPa).
2. The appliance must be isolated from the gas supply
piping system by closing its individual manual shutoff
valve during any pressure testing of the gas supply
piping system at test pressures equal or less than 1 ⁄
2
pound per square inch (3.5kPa).
WARNING
Soot build-up indicates a problem that requires correc-
tion before further use. Turn “OFF” gas to water heater
and leave “OFF” until repairs are made, because failure
to correct the cause of the sooting can result in a fire or
explosion causing DEATH, SERIOUS BODILY INJURY,
OR PROPERTY DAMAGE.
WARNING
The water heater with vent pipe installed must be prop-
erly vented to a roof jack which terminates outdoors.
Never operate the water heater unless it is vented to the
outdoors and has adequate air supply to avoid risks of
improper operation, explosion or asphyxiation.
WARNING
Obstructed or deteriorated vent systems may present a serious
health risk or asphyxiation.
WARNING
Chemical vapor corrosion of the flue and vent system may
occur if air for combustion contains certain chemical vapors.
Spray can propellants, cleaning solvents, refrigerator and air
conditioner refrigerants, swimming pool chemicals, calcium
and sodium chloride, waxes, bleach, and process chemicals are
typical compounds which are potentially corrosive.
WARNING
Minimum clearances between the water heater and com-
bustible and noncombustible construction are 0 ″″ from sides, 0″″
from back, 4
″″ from front of jacket to closet door and 27″″ from
top of jacket to combustible material. Minimum vent clear-
ance: 6
″″. Provide 24″″ front clearance for servicing and ade-
quate clearance between the jacket top & ceiling for servicing
the flue area.
WARNING
HYDROGEN GAS: Hydrogen gas can be produced in a hot
water system that has not been used for a long period of time
(generally two weeks or more). Hydrogen gas is extremely
flammable and explosive. To prevent the possibility of injury
under these conditions, we recommend the hot water faucet
be opened for several minutes at the kitchen sink before any
electrical appliances which are connected to the hot water
system are used (such as a dishwasher or washing machine).
If hydrogen gas is present, there will probably be an unusual
sound similar to air escaping through the pipe as the hot
water faucet is opened. There must be no smoking or open
flame near the faucet at the time it is open.
WARNING
INSULATING JACKETS: When installing an external water
heater insulation jacket on a gas water heater:
a. DO NOT cover the temperature-pressure relief valve.
b. DO NOT put insulation over any part of the top of the gas
water heater.
c. DO NOT put insulation over the gas control valve or gas con-
trol valve/burner cover, or any access areas to the burner.
d. DO NOT let insulation around the gas water heater to get
within 8 inches of the floor (air must get to the burner).
e. DO NOT cover or remove operating instructions, and safety
related warning labels and materials affixed to the water
heater.
Failure to heed this will result in the possibility of a fire
or explosion.
WARNING
Flood damage to a water heater may not be readily visible or
immediately detectible. However, over a period of time a flood-
ed water heater will create dangerous conditions which can
cause DEATH, SERIOUS BODILY INJURY OR PROPERTY DAM-
AGE. Call a qualified service technician or contractor to replace
a flooded water heater. Do not attempt to repair the unit! It
must be replaced!
CAUTION
WATER HEATERS EVENTUALLY LEAK: Installation of the water
heater must be accomplished in such a manner that if the tank
or any connections should leak, the flow of water will not cause
damage to the structure. When such locations cannot be avoid-
ed, a suitable drain pan should be installed under the water
heater. Drain pans are available at your local hardware store.
Such a drain pan must be not greater than 1 1 ⁄
2
inches deep, have
a minimum length and width of at least 2 inches greater than
the water heater dimensions and must be piped to an adequate
drain. The pan must not restrict combustion air flow. Under no
circumstances is the manufacturer to be held liable for any
water damage in connection with this water heater.