Takagi T-H3J-DV / 240H Installation Manual And Owner's Manual page 14

Set DIP switches shown in the table below depending on the vent length.
T-H3J-DV / 240H
T-H3S-DV / 340H
ON 1 2 3 4 5 6 7 8 9 10
OFF
No. 6 : ON
No. 7 : OFF
ON 1 2 3 4 5 6 7 8 9 10
OFF
No. 6 : OFF
No. 7 : OFF
ON 1 2 3 4 5 6 7 8 9 10
OFF
No. 6 : ON
No. 7 : ON
T-H3J-DV / 240H
T-H3S-DV / 340H
ON 1 2 3 4 5 6 7 8 9 10
OFF
No. 6 : ON
No. 7 : OFF
ON 1 2 3 4 5 6 7 8 9 10
OFF
No. 6 : OFF
No. 7 : OFF
These models can be vented with a plastic vent which is made of PVC, CPVC, or polypropylene
(temperature rated up to 149 °F). In Canada, plastic venting must be certified to ULC S636 standards.
Exhaust pipe and
Fittings
Pipe Cement/Primer
-DIP switch settings for Vent length-
76 mm (3") venting
T-H3-DV / 540H
(Upper bank of DIP switches)
OFF
OFF
OFF
102 mm (4") venting
T-H3-DV / 540H
(Upper bank of DIP switches)
-Exhaust vent (Plastic vent)-
Item Material
Schedule 40 PVC
Schedule 40/80 CPVC
Polypropylene
PVC
CPVC
NOTE: Do NOT Use Cellular Foam Core Pipe
14
ON 1 2 3 4 5 6 7 8
No. 3 : ON
No. 4 : OFF
ON 1 2 3 4 5 6 7 8
No. 3 : OFF
No. 4 : OFF
ON 1 2 3 4 5 6 7 8
12.5 to 21.3 m
No. 3 : ON
No. 4 : ON
ON 1 2 3 4 5 6 7 8
OFF
No. 3 : ON
No. 4 : OFF
ON 1 2 3 4 5 6 7 8
OFF
No. 3 : OFF
No. 4 : OFF
Canada
ULC S636 Certified
Materials Only
Page
Installation Manual
Installation
Vent length
1.5 to 6.1 m
(5 to 20 ft.)
(DEFAULT)
6.4 to 12.2 m
(21 to 40 ft.)
(41 to 70 ft.)
Vent length
1.5 to 15.2 m
(5 to 50 ft.)
(DEFAULT)
15.5 to 30.5 m
(51 to 100 ft.)