Bosch C 1210 ES Installation Manual page 17

INTAKE
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.
NOTE: Vent pipe must be completely
i
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.
6 720 644 887
EXHAUST
4" Min.
DRAIN TEE
6720608643-12.2V
1.
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
NOTE: The combustion air accessory can
i
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.
3.3.5 Connecting the condensate water drain
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.
Installation instructions
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17