Bosch GWH 2700 ES LP User Manual page 14

Installation instructions
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)*
* Warning: for 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.
3" stainless steel pipe
Fig. 14 Horizontal venting installation (concentric
penetration)
14
4"
6720608542-02.2AL
12"
Min. 3 Feet
6720608782-11.1Av
Fig. 15 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.
10' MIN.
2' MIN.
3' MIN.
FIRESTOP SUPPORT
FIRESTOP SUPPORT
HOSE
CLAMP
ELBOW
CONDENSATE
DRAIN
APPLIANCE
Fig. 16 Vertical venting installation (single pipe pene-
tration)*
* Warning: for non-freezing climates only!
6720608542-05.2AL
RAIN CAP
STORM COLLAR
FLASHING
4" MIN.
AIR SPACE
6720608158-91.2Av
6 720 608 542