Download  Print this page

Bosch Greentherm T9900 SE 160 Installation And Operating Instructions Manual page 28

Indoor residential tankless water heaters, 160 000/199 000 btu- natural gas 160 000/199 000 btu - liquefied petroleum lp gas
Hide thumbs


Installation instructions
4.6.4 Recommended Vent Configuration Examples
Below are approved examples of vertical and horizontal venting
Using a single pipe vent in cold climates puts the water heater
at risk of freezing, as negative air pressure is common in
buildings during cold weather. This situation will pull cold air
through the heat exchanger and can lead to damage and a water
leak and is not covered by the product's warranty. In the event
of negative air pressure causing back drafting contact Bosch for
Fig. 12
Horizontal venting system (concentric vent)
[1] Exhaust
[2] Air intake
[3] Concentric Vent kit
[4] Exhaust pipe
[5] Air Intake pipe
[LA] Minimum 1"
Fig. 13
Vertical venting system
[1] Exhaust
[2] Intake
[A] 12 inches (305 mm) (18 in. for Canada) above maximum
snow level or at least 24 inches (610 mm), whichever is
[B] 12 inches (305 mm)
[C] 12 inches (305 mm) minimum above air intake opening
Fig. 14
Horizontal parallel venting system (twin pipe)
[A] 3ft minimum
Vent terminals are at the same height.
Greentherm T9900 SE/i – 6 720 813 635 (2019/03)



  Related Manuals for Bosch Greentherm T9900 SE 160

This manual is also suitable for:

Greentherm t9900 se 199Greentherm t9900 se/i 199