Installation Sheet

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The dark square is the direction
the dipswitch should be set to.
INTAKE
EXHAUST
LOUVER COVER PLATES
DIRECT INTAKE VENT SYSTEM
This T-M50 water heater may be converted to a direct vent (sealed combustion) appliance by
installing an adapter (Part No. TM-DV50) which will bring all required combustible air from
outside the building. When installing the TM-DV50 conversion kit, please follow all instructions
included with the kit.
• The T-M50 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-M50 requires a 5” 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.
TM-DV50 Direct Vent
Conversion Kit
Make sure power to the unit is
turned OFF before changing
the dipswitch settings.
O
N
TMP1 TMP2 TMP3 MODE DIRE OUT P-ALARM MST
1 2 3 4 5 6 7 8
Lower Bank of Dipswitches
7-Seg LED
Lower bank of
dipswitches
Upper bank of
dipswitches
TM-DV50 DIRECT VENT
CONVERSION KIT