American Water Heater BBCN375T754NV 100 Series, Installation, Operation, Service, Maintenance, Limited Warranty

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installed in a carpeted alcove or closet, the entire floor shall be covered
by the panel. Also, see the drain requirements.
THIS HEATER SHALL BE LOCATED OR PROTECTED SO IT IS
NOT SUBJECT TO PHYSICAL DAMAGE BY A MOVING VEHICLE.
WARNING
FLAMMABLE ITEMS , PRESSURIZED CONTAINERS OR ANY
OTHER POTENTIAL FIRE HAZARDOUS ARTICLES MUST
NEVER BE PLACED ON OR ADJACENT TO THE HEATER. OPEN
CONTAINERS OF FLAMMABLE MATERIAL SHOULD NOT BE
STORED OR USED IN THE SAME ROOM WITH THE HEATER.
When installing the heater, consideration must be given to proper
location. Location selected should be as close to the stack or
chimney as practicable, with adequate air supply and as centralized
with the piping system as possible.
THE HEATER MUST NOT BE LOCATED IN AN AREA WHERE IT
WILL BE SUBJECT TO FREEZING.
THE HEATER SHOULD BE LOCATED IN AN AREA WHERE
LEAKAGE FROM THE HEATER OR CONNECTIONS WILL NOT
RESULT IN DAMAGE TO THE ADJACENT AREA OR TO LOWER
FLOORS OF THE STRUCTURE.
WHEN SUCH LOCATIONS CANNOT BE AVOIDED, A SUITABLE
DRAIN PAN SHOULD BE INSTALLED UNDER THE HEATER. Such
pans should be fabricated with sides at least 2" (5cm) deep, with
length and width at least 2" (5cm) greater than the diameter of the
heater and must be piped to an adequate drain. The pan must not
restrict combustion air flow.
Drain pans suitable for these heaters are available from from the
manufacturer, authorized service agencies or distributors.
CLEARANCES
These heaters are approved for installation on combustible flooring
in a closet having a ceiling 12" (30.5cm) above top cover and with
clearances to combustible construction of 6" (15.2cm) from flue or
vent connector, 0" (0cm) at the sides and rear and 5" (10.2cm) to
front to prevent a possible fire hazard condition. A minimum of 4"
(10.2cm) shall be allowed for installation of serviceable parts.
HARD WATER
Where hard water conditions exist, water softening or the threshold
type of water treatment is recommended. This will protect
the dishwashers, coffee urns, water heaters, water piping and
other equipment.
See MAINTENANCE section for details of tank cleanout procedure.
AIR REQUIREMENTS
REFER TO CURRENT EDITION OF THE "NATIONAL FUEL GAS
CODE ANSI Z223.1/NFPA 54. FOR CANADA CONSULT CAN/
CSA-B149.1.
KEEP APPLIANCE AREA CLEAR AND FREE OF COMBUSTIBLE
MATERIALS, GASOLINE AND OTHER FLAMMABLES, VAPORS
AND LIQUIDS.
DO NOT OBSTRUCT THE FLOW OF THE COMBUSTION OR
VENTILATING AIR.
WARNING
ATTIC AND/OR EXHAUST FANS OPERATING ON THE PREMISES
WITH A WATER HEATER CAN RESULT IN CARBON MONOXIDE
POISONING AND DEATH.
OPERATION OF THESE FANS CAN PRODUCE A NEGATIVE DRAFT IN
THE AREA OF THE WATER HEATER PREVENTING THE PRODUCTS
OF COMBUSTION FROM EXHAUSTING THROUGH THE CHIMNEY
OR VENT PIPE.
The venting of the water heater should be inspected by a qualified service
technician at the time of installation and periodically thereafter to ensure
a down-draft condition does not exist.
WARNING
FOR SAFE OPERATION PROVIDE ADEQUATE AIR FOR COMBUSTION
AND VENTILATION. AN INSUFFICIENT SUPPLY OF AIR WILL CAUSE
RECIRCULATION OF COMBUSTION PRODUCTS RESULTING IN
AIR CONTAMINATION THAT MAY BE HAZARDOUS TO LIFE. SUCH
A CONDITION OFTEN WILL RESULT IN A YELLOW, LUMINOUS
BURNER FLAME, CAUSING CARBONING OR SOOTING OF THE
COMBUSTION CHAMBER, BURNERS AND FLUE TUBES AND
CREATES A RISK OF ASPHYXIATION.
Where an exhaust fan is supplied in the same room with a heater,
sufficient openings for air must be provided in the walls. UNDERSIZED
OPENINGS WILL CAUSE AIR TO BE DRAWN INTO THE ROOM
THROUGH THE CHIMNEY, CAUSING POOR COMBUSTION.
SOOTING MAY RESULT IN SERIOUS DAMAGE TO THE HEATER
AND RISK OF FIRE OR EXPLOSION.
DO NOT OBSTRUCT THE FLOW OF COMBUSTION AND VENTILATING
AIR. ADEQUATE AIR FOR COMBUSTION AND VENTILATION MUST
BE PROVIDED FOR SAFE OPERATION.
UNCONFINED SPACE
In buildings of conventional frame, brick, or stone construction,
unconfined spaces may provide adequate air for combustion, ventilation
and draft hood dilution.
If the unconfined space is within a building of tight construction (buildings
using the following construction: weather stripping, heavy insulation,
caulking, vapor barrier, etc.), air for combustion, ventilation and draft hood
dilution must be obtained from outdoors. The installation instructions
for confined spaces in tightly constructed buildings must be followed to
ensure adequate air supply.
CONFINED SPACE
When drawing combustion and dilution air from inside a conventionally
constructed building to a confined space, such a space shall be provided
with two permanent openings, ONE IN OR WITHIN 12 INCHES (30.5cm)
OF THE ENCLOSURE TOP AND ONE IN OR WITHIN 12 INCHES
(30.5cm) OF THE ENCLOSURE BOTTOM. Each opening shall have
a free area of at least one square inch per 1000 Btuh (2,225mm
2
/Kw) of
the total input of all appliances in the enclosure, but not less than 100
square inches (645 square cm).
If the confined space is within a building of tight construction, air for
combustion, ventilation, and draft hood dilution must be obtained
from outdoors. When directly communicating with the outdoors or
communicating with the outdoors through vertical ducts, two permanent
openings, located in the above manner, shall be provided. Each opening
shall have a free area of not less than one square inch per 4000 Btuh
(8,900mm
2
/Kw) of the total input of all appliances in the enclosure. If
horizontal ducts are used, each opening shall have a free area of not
less than one square inch per 2000 Btuh (4,450mm
2
/Kw) of the total input
of all appliances in the enclosure. For Canadian installations consult
CAN/CSA-B149.1.