Bosch GWH 715 ES User Manual page 18

Installation instructions
3.3.3 Vent connections
B Attach the flue gas exhaust accessory (8 705 504
151) to the top of the unit (position 1) using the 4
screws and gasket provided. Fully insert stainless
steel vent pipe 1.5" minimum into the accessory and
tighten the clamp (position 2).
NOTE: Vent pipe must be completely
i
vertical when inserting or gasket inside
exhaust accessory
displaced. Exhaust accessory can be
removed with vent pipe attached to check
gasket position.
Fig. 21
B Attach the combustion air inlet accessory (8 705
504 154) to the top of the unit (position 3) using the
3 screws and gasket provided, and install air intake
pipe over the accessory. NOTE: The appliance has
the option to mount the combustion air inlet acces-
sory on the top right or on the top left side of the
heater. The combustion air inlet that is not used must
be kept sealed.
Fig. 22
B Ensure that exhaust vent pipe is fully inserted in collar
to enable proper connection.
18
can become
Exhaust venting must be 3" or 4" sealed
i
single wall stainless steel (AL29-4C) vent
pipe.
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