Installation - Takagi T-H2-DV Installation Manual And Owner's Manual

INSTALLATION

All gas water heaters require careful and correct installation to ensure safe and efficient operation. This
manual must be followed exactly. Read the "Safety Guidelines" section at the beginning of this manual.
x
x
WARNING
PLEASE READ THIS MANUAL CAREFULLY AND FOLLOW ALL DIRECTIONS.
x
The warranty will not cover damage caused by water quality.
x
x
CAUTION
x
x
x
Although the T H2 DV/T H2 OS is designed to operate with minimal sound,
TAKAGI 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.
x
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. Takagi 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.
WARNING
x
T H2 DV/T H2 OS are high efficiency products that create condensation. A
condensation drain tube must be installed with the T H2 DV/T H2 OS to
discharge condensate into a drain outlet. For more information, refer to p. 20.
x
TAKAGI does not recommend installing the T H2 DV in an attic due to safety
issues. If you install your T H2 DV in an attic:
x
x
x
x
Installation and service must be performed by a qualified installer (for
example, a licensed plumber or gas fitter), otherwise the warranty by Takagi
will be void.
The installer (licensed professional) is responsible for the correct installation
of your T H2 DV/T H2 OS Water Heater and for compliance with all national,
state/provincial, and local codes.
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.
Make sure your unit will have enough combustion air and proper
ventilation.
Keep the area around your T H2 DV clean. When dust collects on the flame
sensor, the water heater will shut down on errors.
Locate 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.
5
Page
Installation