A.O. Smith ATX-199 Instruction Manual page 24

Table 11. DIP Switch Settings: Four-Inch Single-Vent Pipe
5 to 50 ft
(1.5 to 15.2m)
(DEFAULT)
ON 1 2 3 4 5 6 7 8 9 10
OFF
STAINLESS STEEL VENT INSTALLATIONS
•
•
•
•
•
hangers.
STAINLESS STEEL ELBOW/LENGTH REQUIREMENTS
Table 12. Maximum Elbows for Vent Length
Max. No.
Diameter
of Elbows
4 in.
5
Table 13. Maximum Length Per Number of Elbows
Max. Vertical
No. of
Elbows
Vent Length
0
1
2
51 to 100 ft
(15.3 to 30.5 m)
ON 1 2 3 4 5 6 7 8 9 10
OFF
(Total) Vent Length*
No. of Max. Vertical or
Elbows
3
4
5
HOW TO INSTALL A STAINLESS STEEL DIRECT VENT
Installing a Four-Inch Stainless-Steel Direct Vent Connection
1.
heater.
2.
4" (102 mm)
stainless steel vent
straight pipe
Intake vent collar
(Female)
Figure 24. Four-Inch Stainless Steel Direct Vent Connection
Table 14. DIP Switch Settings for Two-Pipe Direct Vent Installations
5 to 50 ft
(1.5 to 15.2m)
(DEFAULT)
ON 1 2 3 4 5 6 7 8
OFF
WARNING
•
•
•
Breathing carbon monoxide can cause brain damage
or death. Always read and understand the instruction
manual.
Installing a Stainless-Steel Single Vent Connection
1.
2.
3.
24
4" (102 mm)
stainless steel vent
straight pipe
Exhaust vent
collar of the
Indoor models
51 to 100 ft
(15.3 to 30.5 m)
ON 1 2 3 4 5 6 7 8
OFF