30
V
erti
cal
condensa
tion
drain**
Wall
Hanger
Hanger
Sidewall vent
Backfl
ow
preventer*
Fire stop
Backfl
ow
V
erti
cal
condensa
tion
drain**
preventer*
Rain cap
Hanger
Wall
Direct-vent
concentric
HS115 PLUS
Vent length
No. 6 : O N
No. 7 : OFF
No. 8 : OFF
0 to 20
ft.
(0 to
6.1
m)
No. 6 : OFF
No. 7 : OFF
No. 8 : OFF
No. 6 : O N
No. 7 : O N
21 to 40
ft.
(DEFAULT)
(6.2
to
12.2
m)
No. 8 : OFF
41 to 60
ft.
(12.3
to
18.3
m)
ON 1 2 3 4 5 6 7 8 9 10
OFF
ON 1 2 3 4 5 6 7 8 9 10
OFF
ON 1 2 3 4 5 6 7 8 9 10
OFF
DIP switch se
ttings
for direct vent installa
tion
*Backfl
ow preventer (Recommended for freezing weather
c
onditions:
36 °F (2 °C) and below).
**V
erti
cal condensa
tion
drain must be installed in accordance with
local codes. It is
required to be installed in the ven
ting
system when there
is more than 5
ft.
(1.5 m) of equivalent vent length, not including the sidewall
termina
tion.
90° elbow is equivalent to 5
ft.
(1.5 m) of vent length.
1
ft.
(305 mm)
min.
0.4
ft.
(130 mm)
min.
0.4
ft.
(130 mm)
min.
Exhaust
Intake
Exhaust
Intake
Summary of Contents for Smart 115 PLUS
Page 49: ...49 Boiler Notes ...
