Please Read Before Proceeding; Special Instructions - A.O. Smith 400 - 2100 Installation & Operation Manual

Please read before proceeding

Special instructions

This is a gas appliance and should be installed
NOTICE
by a licensed electrician and/or certified gas
supplier. Service must be performed by a
qualified service installer, service agency or
the gas supplier.
WARNING If the information in these instructions is
not followed exactly, a fire or explosion may
result causing property damage, personal
injury, or death.
This appliance MUST NOT be installed in
any location where gasoline or flammable
vapors are likely to be present, unless the
installation is such to eliminate the probable
ignition of gasoline or flammable vapors.
Improper
WARNING
alteration, service or maintenance can
cause injury or property damage.
to this manual for assistance or additional
information, consult a qualified installer,
service agency or the gas supplier.
Checking equipment –
Upon receiving equipment, check for signs of shipping damage.
Pay particular attention to parts accompanying the appliances
which may show signs of being hit or otherwise being
mishandled. Verify total number of pieces shown on packing
slip with those actually received. In case there is damage or a
shortage, immediately notify the carrier.
Do not use this appliance if any part has
WARNING
been under water. The possible damage
to a flooded appliance can be extensive
and present numerous safety hazards. Any
appliance that has been under water must
be replaced.
The ceramic fiber material used in this
NOTICE
appliance is an irritant; when handling or
replacing the ceramic materials it is advisable
that the installer follow these safety guides.
REMOVAL OF COMBUSTION CHAMBER LINING OR
BASE PANELS:
 Avoid
breathing dust
and eyes.
• Use NIOSH certified
This type of respirator is based on the OSHA
requirements for cristobalite
document was written.
respirators may be needed depending on the job
site conditions. Current NIOSH recommendations
can be found on
h t t p : / / w w w . c d c . g o v / n i o s h / h o m e p a g e . h t m l .
NIOSH approved respirators, manufacturers, and
phone numbers are also listed on this website.
• Wear long-sleeved, loose fitting clothing, gloves,
and eye protection.
installation, adjustment,
Refer
and contact with skin
dust respirator (N95).
at the time this
Other types
the NIOSH website
Installation & Operation Manual
 Apply enough water to the combustion chamber
lining to prevent airborne dust.
 Remove the combustion chamber lining from the
appliance and place it in a plastic bag for disposal.
• NIOSH stated First Aid:
Eye: Irrigate immediately.
Breathing: Fresh air.
WARNING The combustion chamber insulation in this
appliance contains ceramic fiber material.
Ceramic fibers can be converted to cristobalite
in very high temperature applications.
The International Agency for Research on
Cancer (IARC) has concluded, "Crystalline
silica in the form of quartz or cristobalite
from occupational sources is carcinogenic
to humans (Group 1)." Normal operating
temperatures in this appliance are below the
level to convert ceramic fibers to cristobalite.
Abnormal operating conditions would have
to be created to convert the ceramic fibers in
this appliance to cristobalite.
The ceramic fiber material used in this
appliance is an irritant; when handling
or replacing the ceramic materials it is
advisable that the installer follow these safety
guidelines.
Warranty –
Factory warranty (in this manual) does not apply to units
improperly installed or improperly operated.
Experience has shown that improper installation or system
design, rather than faulty equipment, is the cause of most
operating problems.
1. Excessive water hardness causing a lime/scale build-up in
the copper tube is not the fault of the equipment and is
not covered under the manufacturer's warranty (see
Water Treatment and Water Chemistry).
2. Excessive pitting and erosion on the inside of the copper
tube may be caused by too much water velocity through
the tubes and is not covered by the manufacturer's
warranty (see Water Heater Flow Rates and Temperature
of
Rise for flow requirements).
at
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