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Venting - Bosch Greentherm 9800 SE 160/199 Manual

Indoor residential and comme rcial tankless water heaters
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Fig. 8
Leveling wall mounting bracket
Fig. 9
Mounting the heater
CAUTION: Personal injury and property
▶ Appliance must be installed vertically.
Greentherm 9800 SE 160/199 | SEC 199


▶ Do not reduce the exhaust or
combustion air vent pipe sizes.
▶ Do not common vent with any other
vented appliance or stove.
▶ Do not use Type-B vent as the actual
exhaust vent system for the appliance.
DANGER: Flue gas poisoning!
▶ Failure to vent the exhaust gases to the
outside (see table 5 for proper material)
may result in dangerous flue gases filling
the structure in which it is installed.
▶ Installations resulting in negative
pressure/back draft require sealed
combustion (twin pipe / concentric).
Damage caused from back draft, ie.
freezing, is not covered by warranty.
NOTICE: Appliance malfunction!
▶ Protect the exhaust and inlet from
leaves and debris by installing a screen
on the end of the termination. ¼ " mesh
minimum opening is recommended on
To prevent the risk of flue material overheat,
when the appliance is used for domestic hot
water use only the appliance's flue
temperature sensor will limit flue gas
temperature to 149 °F.
When recirculation mode is activated on this
appliance, the appliance's flue temperature
sensor will limit flue gas temperature to
194 °F.
Installation instructions | 15
6 720 816 815 (2016/10)



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