Rinnai RUR98i - Installation of PVC;CPVC Vent and Intake Air Piping; Required Parts For 3” PVC;CPVC Assembly Configuration; Required Parts For 4” PVC;CPVC Assembly Configuration

KBP Series Manual 25
Installaon of PVC/CPVC Vent and Intake Air Piping:

The RUR series units do not require addional parts to be used with standard 3” 3rd party solid core PVC/CPVC
pipes; refer to gure below for required parts for 3” PVC/CPVC assembly conguraon.

Conversely, the RUR series units require 2 addional (4”x 3” Flush – Schedule 40 PVC) bushing to be used with
4” PVC/CPVC assembly conguraon (refer to gure below).

Failure to correctly assemble the components according to these instrucons may result in property damage,
personal injury, or death.
3” standard - wall white
PVC/CPVC unthreaded pipe
(SCH 40 solid core)
3” SCH 40 PVC/CPVC Elbows
(female unthreaded socket ends)
Exhaust
Combuson Air
Exhaust Adapter Ring


Intake Cap


Components by others
(displayed as example),
not included with unit
Included with
Intake Cap


Exhaust Adapter Ring


3” standard - wall white
PVC/CPVC unthreaded pipe
(SCH 40 solid core)
4” SCH 40 PVC/CPVC Elbows
(female unthreaded socket ends)
Exhaust
Combuson Air
4”X 3” ush bushing
(SCH 40 PVC/CPVC) or any other
reducer type ng
Components by others
(displayed as example),
not included with unit
Included with

apply PVC glues, solvents, or cleaners to the water heaters intake or exhaust gasket connecons.