John Wood Takagi - 240H-340H-540H - Manual (Page 8)

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INCLUDED ACCESSORIES
OPTIONAL ITEMS
• Installation and service must be performed 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 installation
of the water heater and for compliance with all national, state/provincial,
and local codes.
• The manufacturer does not recommend 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 airborne 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 recommend 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
ventilation.
• 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.
• Place the unit for easy access for service and maintenance.
• A drain pan, or other means of protection against water damage, is
required to be installed under the water heater in case of leaks.
WARNING
• 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 hardness leads to scale
formation and may affect / damage the water heater. Hard water scaling
must be avoided or controlled by proper water treatment.
• 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.
• Although the water heater is designed to operate with minimal sound, the
manufacturer does not recommend installing 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
leakage at some time in the life of the product 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.
CAUTION
Installation
Installation Manual