Bosch C 950 ES - Condensate Drain and Freeze Prevention

6 720 646 812
Installation instructions
17
Fig. 15 Horizontal venting system (single pipe pene-
tration)
*Warning: Single pipe penetration should be
used in non-freezing climates only!
3.3.4 Vent connections
Attaching the exhaust and air inlet connection
adaptors to the top of the heater
B Attach the flue gas exhaust accessory to the top of
the unit Fig. 16 (position 1) using the 4 screws and
gasket provided, and fully insert vent pipe into the
accessory. If using 4" venting, a 3" to 4" increaser
should be installed directly after this accessory.
Fig. 16 Exhaust connection
B Attach the combustion air inlet accessory to the top
of the unit Fig. 17 (position 2) using the 3 screws and
gasket provided, and install 3" air intake pipe over the
accessory.
Fig. 17 Inlet connection
3.3.5 Connecting the condensate water drain
i
NOTE: Vent pipe must be completely
vertical when inserting or blue gasket
inside exhaust accessory can become
displaced. Exhaust accessory can be
removed with vent pipe attached to check
gasket position.
6720608643-12.2V
3" (80mm)
INTAKE
EXHAUST
4” Min.
DRAIN TEE
i
NOTE: The combustion air accessory can
be installed 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.
Warning:
B Failure to properly install condensate
drain can damage the appliance and will
void the warranty.
Warning:
B Do not install condensate drain tubing in
areas where it may freeze.