Takagi T-K3 User Manual

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The dark square is the direction
the dipswitch should be set to.
DIRECT INTAKE VENT SYSTEM
This T-K3/T-K3-Pro water heater may be converted to a direct vent (sealed combustion)
appliance by installing an adapter (Part No. TK-TV10) which will bring all required combustible
air from outside the building. When installing the TK-TV10 conversion kit, please follow all
instructions included with the kit.
• The T-K3/T-K3-Pro must be installed in a location where the proper amount of
combustible air will be available to it at all times without obstructions.
• If used as a direct vent appliance, the T-K3/T-K3-Pro requires a 3” combustible air
supply pipe. The intake pipe must be sealed airtight.
• Air supply pipe can be made of ABS, PVC, galvanized steel, corrugated aluminum,
corrugated stainless steel or Category III stainless steel.
• Change the dipswitch settings to the direct vent system. (See diagram below)
• Sidewall venting is recommended for the direct vent system.
• Takagi recommends running the exhaust vent and the intake pipe parallel.
Make sure power to the unit is
turned OFF before changing
the dipswitch settings.
7-Seg LED
Right bank of
dipswitches
Left bank of
dipswitches
TK-TV10 Direct Vent
Conversion Kit
INLET
EXHAUST
T
K
-T
V
10
DIRECT VENT
CONVERSION KIT
Right Bank of Dipswitches

Takagi T-K3 Specifications

General

Type	Tankless
Installation Type	Indoor
Maximum BTU Input	199, 000 BTU/h
Gas Connection Size	3/4"
Vent Size	3"
Hot Water Flow Rate (at 35°C rise)	6.6 GPM
Maximum Input	199, 000 BTU/h