36
Rinnai Commercial Hybrid System Installation and Operation Manual
Commercial Hybrid
Single Unit Circulation
Note:
Installation must conform to applicable code and
all requirements listed in the installation manual.
Balancing valves, equivalent piping, pressure
gauges, and temperature gauges are to be used
as necessary to ensure proper flow between
units.
Condensate piping shall be CPVC or PVC material
and shall not be smaller than the drain
connection on the appliance.
Components of condensate drainage shall be
CPVC or PVC material. All components shall be
selected for the pressure and temperature rating
of the installation.
Where the drain pipes from more than one unit
are manifolded together for condensate
drainage, the pipe or tubing shall be sized in
accordance with an approved method as
dictated by local codes.
Condensate must be disposed of
according to local codes.
Building Hot Water Supply Line
Condensate Drain Line
Pipe T&P to Open Drain
Building
Circulation
Pump
Gas Supply
Building Hot Water
Return Line
(Optional)
Cold Water Supply
Tank
T&P
Tankless
PRV
Piping Diagram for Basic Installations
