Rinnai RUR98i Manuel D'installation Et D'utilisation page 45

Piping Diagram for Cross Over Installation
Cross Over Method Plumbing Diagram
Maximum Pipe Length*
(Hot and Cold Water Supply Lines)
Pipe Diameter
Short Loop
Long Loop
(*Take equivalent elbow lengths into
consideration when calculating pipe
length.)
Thermal Bypass Valve
(Supplied with unit)
The condensate drain pipe (along its entire length) must be at least the same diameter as the drain line, (1/2
inch NPT). Refer to the Condensate section in the venting instructions section of this manual.
3/4"" Ball Valve
Flow Check Valve
3/4" 1/2"
200ft 50ft
400ft 100ft
Hot Water Fixtures
Drain Valve
Pressure Relief Valve
KBP Series Manual
Flow through Cross
Over Valve must be
less than 0.8gpm.
Hot Water Supply Line
This is not an engineered drawing. It is intended only as a guide and not as
a replacement for professionally engineered project drawings. This drawing
is not intended to describe a complete system. It is up to the contractor/
engineer to determine the necessary components and configuration of the
particular system being installed. This drawing does not imply compliance
with local building code requirements. It is the responsibility of the
contractor/engineer to ensure installation is in accordance with all local
building codes. Confer with local building officials before installation.
Gas Supply
Cold Water Supply Line
Thermal expansion tank
45