System Design Drawings

RS 12.15.2018
officials before installation.
12.15.2018
This is not an engineering drawing; it is intended only as a guide and not
as a replacement for professional engineering project drawings. This
drawing is not intended to describe a complete system. It is up to the
contractor or engineer to determine the necessary components and
configuration of the particular system to be installed. The drawing does
not imply compliance with local building code requirements. It is the
responsibility of the engineer or contractor to ensure that the installation is
in accordance with all local building codes. Confer with local building
11.13.2018
consistent hot water delivery.
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PERMISSION OF RINNAI AMERICA IS
X.XXX =
WHOLE WITHOUT THE WRITTEN
REPRODUCTIONIN PART OR AS A
PROPERTY OF RINNAI AMERICA. ANY
THIS DRAWING IS THE SOLE
0.010
THE INFORMATION CONTAINED IN
Fraction =
1.0
TOLERANCES:
1/32
Sheet Metal X.XX =
Angle =
0.030
0.010
TOLERANCING PER:
MATERIAL
FINISH
DRAWN
CHECKED
ENG APPR.
COMMENTS:
DATENAME
TITLE:
SIZE
B
DWG. NO.
UNLESS OTHERWISE SPECIFIED:
WEIGHT: SCALE: NTS
Systems Design Manual
SH
SHEET 1 OF 1
REV
TRWST-3-CO
DO NOT SCALE DRAWING
INTERPRET GEOMETRIC
Angle =
1-800-621-9419
PEACHTREE CITY, GA 30269
103 INTERNATIONAL DRIVE
RINNAI AMERICA CORPORATION
0.005MACHINED X.XXX =
PROHIBITED.
THIRD ANGLE PROJECTION
PROPRIETARY AND CONFIDENTIAL
Note:
Condensate piping shall be CPVC or PVC
material and shall not be smaller than the
drain connection on the appliance.
Components of the 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.
Reference the Common Vent Installation
Manual for common vent options.
Reference Water Heater IO Manual for
cascading instructions.
Ensure tankless heaters are installed in
parallel to maximize system output.
Contact Application Engineering Center of
Excellence if alternate piping arrangements
will be considered.
Balancing of hot water risers may be
necessary after installation to ensure
AB
Tankless Rack System
Three Unit RUR Crossover Circulation
Non-Circulation Unit
C
old Water Supply
Condensate Drain Line
Sensei
Gas Supply
Valve
Crossover
Fixture
Hot Water Supply
Furthest
Circulation Unit
Sensei
Non-Circulation Unit
Sensei
For this application:
Maximum Pipe Length (Hot Water
Supply and Return Lines)
3/4" - 400ft
1/2" - 100ft
Reference Rinnai Circ-Logic Guide for
Rinnai Circ-Logic description and
installation instructions.
PVA to remain at factory default setting.
Ensure Circulation Unit is connected as
primary water heater using an
EZConnect™ Cable.