A.O. Smith 104 Series, Instruction Manual

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11
is to redu F e the standby heat loss en F ountered with storage
tank heaters The water heaters F overed by this manual meet
or ex F eed the Energy Poli F y A F t standards with respe F t to
insulation and standby heat loss requirements, making an
insulation blanket unne F essary
Should you F hoose to apply an insulation blanket to this
heater, you should follow these instru F tions See the
Features and Components se F tion of this manual for
identifi F ation of F omponents mentioned below Failure to
follow these instru F tions F an restri F t the air flow required for
proper F ombustion, potentially resulting in fire, asphyxiation,
serious personal injury or death
‡ DO NOT apply insulation to the top of the water heater, as
this will interfere with safe operation of the draft F ontrol
‡ DO NOT F over the gas F ontrol valve, thermostat or the
Temperature-Pressure Relief Valve
‡ DO NOT allow insulation to F ome within 2 ´ (5 F m) of the
burners, to prevent blo F kage of F ombustion air À ow to the
burners
‡ DO NOT F over the instru F tion manual Keep it on the side of
the water heater or nearby for future referen F e
‡ DO obtain new warning and instru F tion labels from the
manufa F turer for pla F ement on the blanket dire F tly over the
existing labels
‡ DO inspe F t the insulation blanket frequently to make F ertain
it does not sag, thereby obstru F ting F ombustion air À ow
HARD WATER
Where hard water F onditions exist, water softening or the
threshold type of water treatment is re F ommended This will
prote F t the dishwashers, F offee urns, water heaters, water piping
and other equipment
See the Maintenan F e Se F tion in this manual for sediment and
lime s F ale removal pro F edures
CIRCULATION PUMPS
A F ir F ulating pump is used when a system requires a F ir F ulating
loop or there is a storage tank used in F onjun F tion with the water
heater See Water Piping Diagrams in this manual for installation
lo F ation of F ir F ulating pumps
See the Cir F ulation Pump Wiring Diagrams in this manual for
ele F tri F al hookup information Install in a FF ordan F e with the
F urrent edition of the National Ele F tri F al Code, NFPA 70 or the
Canadian Ele F tri F al Code, CSA C22 1
All-bronze F ir F ulating pumps are re F ommended for used with
F ommer F ial water heaters
Some F ir F ulating pumps are manufa F tured with sealed bearings
and do not require further lubri F ation Some F ir F ulating pumps
must be periodi F ally oiled Refer to the pump manufa F turer ¶ s
instru F tions for lubri F ation requirements
FIGURE 7.
INSULATION BLANKET
Do not obstruct water heater air intake
with insulating blanket.
Gas and carbon monoxide detectors
are available.
Install water heater in accordance with
the instruction manual.
Breathing carbon monoxide can cause brain damage or
death. Always read and understand instruction manual.
Breathing Hazard - Carbon Monoxide Gas
Insulation blankets are available to the general publi F for
external use on gas water heaters but are not ne F essary
with these produ F ts The purpose of an insulation blanket