Rinnai RUCS65i series Installation And Operation Manual page 14

Determining Vent Configuration
NOTICE

Prior to the installation of the vent system, the
unit must be properly adjusted for the venting
configuration selected for the application.

Any issues resulting from improper installation
will not be covered by warranty.

Ducted outside air is mandatory for all twin pipe
configurations.
Concentric Vent Configuration
(Same procedure to be used for Twin Pipe with
Centrotherm Adapter Configuration)
Removal of Exhaust Adapter Ring
1. Remove fastener from concentric flue
connection.
14
Exhaust Adapter
Ring to be removed
and discarded for
concentric vent
configuration
KCM Series Manual
2. Remove exhaust adapter ring.
3. Install the concentric vent. Ensure it is properly
seated.
4. Secure the vent pipe to the unit with a screw