John Wood Takagi - 110-310-510 - Manual (Page 6)

6
WARNING
Installation and service must be per-
formed by a qualified installer (for
example, a licensed plumber or gas
fitter), otherwise the warranty will be
void.
The installer (licensed professional)
is responsible for the correct installa-
tion of the water heater and for com-
pliance with all national, state/provin-
cial, and local codes.
The manufacturer does not recom-
mend installing the water heater in a
pit or location where gas and water
can accumulate.
Do not have the vent terminal pointing
toward any operating window, door, or
opening into a building.
Do not install next to any source of air-
borne debris, such as a clothes dryer,
that can cause debris to be trapped
inside the combustion chamber, unless
the system is direct-vented.
The manufacturer does not recom-
mend installing the water heater in an
attic due to safety issues. If you install
the water heater in an attic:
Make sure the unit will have enough
combustion air and proper ventila-
tion.
Keep the area around the water
heater clean. When dust collects on
the flame sensor, the water heater
will shut down on an error code.
If the above conditions cannot be
met, use the direct vent conversion
kit TK-TV10.
Place the unit for easy access for
service and maintenance.
A drain pan, or other means of pro-
tection against water damage, is
required to be installed under the
water heater in case of leaks.
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CAUTION
The warranty will not cover damage
caused by water quality.
Only potable water or potable water/
glycol mixtures can be used with
this water heater. Do not introduce
pool or spa water, or any chemically
treated water into the water heater.
Water hardness levels must not
exceed 7 grains per gallon (120
ppm) for single family domestic
applications or more than 4 grains
per gallon (70 ppm) for all other
types of applications. Water hard-
ness leads to scale formation and
may affect/damage the water heater.
Hard water scaling must be avoided
or controlled by proper water treat-
ment.
Water pH levels must be between
6.5 and 8.5
Well water must be treated.
Do not install the unit where water,
debris, or flammable vapors may get into
the flue terminal.
The manufacturer recommends using
the direct vent kit when the water
heater is installed in a beauty salon.
Some chemicals used in a beauty salon
may affect the flame sensor. Water heat-
er may not work properly.
Although the water heater is designed to
operate with minimal sound, the manu-
facturer does not recommend install-
ing the unit on a wall adjacent to a
bedroom, or a room that is intended
for quiet study or meditation, etc.
Locate your heater close to a drain
where water leakage will not do damage
to surrounding areas. As with any water
heating appliance, the potential for leak-
age at some time in the life of the prod-
uct does exist. The manufacturer will not
be responsible for any water damage
that may occur. If you install a drain pan
under the unit, ensure that it will not
restrict the combustion air flow.
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