A.O. Smith 185874-001 Water Heater User Manual


 
8
Also, the water heater must be located and/or protected so it is not
subject to physical damage by a moving vehicle.
This water heater must not be installed directly on carpeting.
Carpeting must be protected by metal or wood panel beneath the
appliance extending beyond the full width and depth of the appliance
by at least 3 inches (76.2 mm) in any direction, or if the appliance is
installed in an alcove or closet, the entire oor must be covered by
the panel. Failure to heed this warning may result in a re hazard.
FIGURE 3.
Minimum clearances between the water heater and combustible and
noncombustible construction are 0” at the sides and rear, 4” at the
front, and 6” from the vent pipe. Clearance from the top of the draft
hood is 12”. Refer to the label on the water heater located adjacent
to the gas control valve for all clearances.
A gas water heater cannot operate properly without the correct
amount of air for combustion. Do not install in a conned area
such as a closet, unless you provide air as shown in the Typical
Installations, see Figure 2 page 6. Never obstruct the ow of
ventilation air. If you have any doubts or questions at all, call your
gas supplier. Failure to provide the proper amount of combustion
air can result in a re or explosion and cause death, serious bodily
injury, or property damage.
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 combustion and ventilation air be taken from
outside these areas.
Propellants of aerosol sprays and volatile compounds, (cleaners,
chlorine based chemicals, refrigerants, etc.) in addition to being
highly ammable in many cases, will also change to corrosive
hydrochloric acid when exposed to the combustion products of
the water heater. The results can be hazardous, and also cause
product failure.
INSULATION BLANKETS
Insulation blankets are available to the general public for external
use on gas water heaters but are not necessary with these products.
The purpose of an insulation blanket is to reduce the standby heat
loss encountered with storage tank heaters. Your water heater
meets or exceeds the National Appliance Energy Conservation Act
standards with respect to insulation and standby loss requirements,
making an insulation blanket unnecessary.
Should you choose to apply an insulation blanket to this heater, you
should follow these instructions (For identication of components
mentioned below, see Figure 1). Failure to follow these instructions
can restrict the air ow required for proper combustion, potentially
resulting in re, 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 hood.
Do not cover the outer door, thermostat or temperature & pressure
relief valve.
Do not allow insulation to come within 2” (50.8 mm) of the oor to
prevent blockage of combustion air ow to the burner
.
Do not cover the instruction manual. Keep it on the side of the
water heater or nearby for future reference.
Do obtain new warning and instruction labels from the manufacturer
for placement on the blanket directly over the existing labels.
Do inspect the insulation blanket frequently to make certain it
does not sag, thereby obstructing combustion air ow
.