Direct Intake Vent System - Takagi T-M50 ASME Installation Manual And Owner's Manual

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.
Upper bank of
dipswitches
7-Seg LED
Lower bank of
dipswitches
TM-DV50 Direct Vent
Conversion Kit
TM-DV50 DIRECT VENT
CONVERSION KIT

DIRECT INTAKE VENT SYSTEM

Make sure power to the unit is
turned OFF before changing
the dipswitch settings.
O
N
INTAKE
LOUVER COVER PLATES
- 11 -
The dark square is the direction
the dipswitch should be set to.
1 2 3 4 5 6
Lower Bank of Dipswitches
EXHAUST
7 8