Takagi Flash Water Heater T-KD20, Installation Manual And Owner'S Manual

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Thank you for purchasing this water
heater. Properly installed and maintained,
it should give you years of trouble free
service. Read this installation manual
before system install to applications
whether with or without experience.
For Your Safety
PLEASE READ THIS MANUAL CAREFULLY AND
FOLLOW IT EXACTLY FOR YOUR SAFETY.
1. Follow all local codes, or in the absence of
local codes, follow the most recent edition of
the National Fuel Gas Code, ANSI
Z223.1/NFPA 54 in USA or the CGA standard,
CAN/CGA B149.1 or .2 Installation Codes for
Gas Burning Appliances in Canada.
2. Properly ground the unit in accordance with all
local codes, or in the absence of local codes,
with the National Electrical Codes, ANSI/NFPA
70 in the USA or CSA standard C22.1 Canada
Electrical Code Part 1 in Canada.
3. Carefully plan where to install your Flash
Water Heater. Insure that your heater will have
enough combustible air, proper ventilation, and
locate your heater where water leakage will not
do damage to surrounding areas. If there is a
possibility of water damage, install a suitable
drain pan under the unit, which will not restrict
combustible airflow.
4. Check the rating plate for the correct gas type,
gas pressure, water pressure, and electrical
rating. Do not install this unit if these
requirements can’t be met.
5. If a problem should occur, turn off all hot water
taps and turn off the gas. Call a trained
technician, the Gas Company, or the
manufacturer.
6. WARNING : Do not disconnect the electrical
supply if the temperatures will be near
freezing. The Freeze Prevention Device will
only work if the unit has proper electrical
power. The Freeze Prevention Device is rated
for temperatures down to 5º F (-15º C) in a
wind free environment. The wind chill factor will
cause the Flash Water Heater to freeze and be
damaged at temperatures even above 5º F (-
15º C) ambient temperature. Refer to the
sections on Winterizing and the Freeze
Prevention Device for more information.
7. WARNING : Before bathing or showering
always check the water temperature. Do not
leave children or the infirm unsupervised in the
shower or bath. The water temperature is set
at 120º F (50º C) from the factory to maximize
the amount of hot water you can use. Water
temperature over 125º F can cause severe
burns instantly or death from scalds.
8. WARNING : Do not use this appliance if any
part has been underwater. Immediately call a
certified and trained technician to inspect and
service the unit if necessary.
9. WARNING : Do not store or use gasoline or
other flammable vapors or liquids in the vicinity
of this or any other appliance.
10. WARNING : Do not reverse the water and gas
connections, this will damage your heater and
can cause severe injury or death from scalds.
Follow the diagram below when installing your
Flash water heater.
Terms
Direct Vent: Also known as Sealed Combustion.
Systems are all air for combustion is derived
directly from the outside atmosphere and all flue
gases are discharged to the outside atmosphere.
All Takagi products flue gas vents are pressurized,
requiring careful sealing of all joints.
Category III Vent: A system that operates with a
positive vent static pressure and with a vent gas
temperature. All Takagi products flue gas vents
are positive pressure, it requires perfect seal of all
vent pipe joints.