Setting Up The Common Vent System; Common Vent Termination Clearances - Navien NHB H Series Installation And Operation Manual

9.5 Setting up the Common Vent
System
WARNING
Electric Shock Hazard
To prevent serious injury or death:
ALWAYS disconnect power before servicing.
●
NEVER turn power on until the electrical wiring
●
installation is complete.
NEVER remove front cover unless power to
●
unit is turned off or disconnected.
Refer to the following figures when setting the
common vent type.
To view and configure the cascade settings, press
the Back button ( ) and the Menu button (
simultaneously for 3 seconds, and then select
"4. Cascade Status and Settings".
Rotate the Command dial (
the parameters or to increase/decrease setting
values. Press the Command dial (
Vent Type Setting".
For more information on the vent type
Note
settings, refer to "11.13.4 Configuring a
Cascade System" on page 114.
90 Installing a Common Vent System
)
) to switch between
) to select "8.
9.6 Common Vent Termination
Clearances
9.6.1 Direct Vent Application – Vertical
Installation
12"
(30 cm)
min.
End
Cap
9.6.2 Venting Intake and Exhaust to
Different Locations
End
Cap
36" (91cm) min.
Exhaust
12"
Intake
(30 cm)
min.
Exhaust
Intake