Bosch 940 ES Installation Manual page 15

3.3.3 Venting configuration examples
Below are approved examples of horizontal
venting installations.
HORIZONTAL RUN
1/4" PER FOOT
DOWN TO
TERMINATOR.
CONDENSATE
DRAIN
Fig. 13 Horizontal side wall venting installation (single
pipe penetration)
HORIZONTAL RUN
DOWN TO
TERMINATOR.
NOTE:
MINIMUM 1FT OF
STRAIGHT VENT PIPE
REQUIRED
Fig. 14 Horizontal venting installation (combustion air
piping not shown)
Warning: Single pipe penetration should be used in
non-freezing climates only!
Important:
Note: Pitch horizontal runs down toward the heater,
except horizontal run between last elbow and termina-
tion which must slope down to termination 1/4" per
foot.
Note: For horizontal terminations, venting must
terminate once it penetrates to the outside of the
structure. There must be no sections of vent pipe
exposed to the outdoors.
6 720 644 930
4"
6720608542-02.2AL
4"
SIDE
OF
WATER
HEATER
6720608542-10.1V
Fig. 15 Horizontal venting installation (concentric
penetration)
Fig. 16 Horizontal twin pipe penetration
Below are approved examples of vertical venting
installations.
Important:
Note: Pitch horizontal runs down toward the heater,
1/4" per foot.
Installation instructions
12"
6720608782-11.2V
6720608542-05.3V
15