System Design Drawings
Reference Water Heater IO Manual for cascading instructions.
Cold Water Supply
Condensate Drain Line As Appropriate
Gas Supply
Rinnai Tankless
Pump
Demand
Fixture
Furthest
Two Unit Demand Circulation
Note:
Demand Circulator should be controlled by push button, motion
sensor, or door contacts.
Demand Circulator should be designed specifically for tankless
water heaters.
Ensure Demand Circulator is sized for desired flow rate and
pressure drop of circulation loop.
Contact Demand Circulator manufacturer for assistance with
circulator sizing.
Pump should be of bronze or stainless steel construction.
The use of Demand Circulators will maintain full warrantee of
Rinnai water heaters.
Applies to HE, HE+, SE, and Sensei Models
AB 11.16.2018
RS 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
officials before installation.
THIRD ANGLE PROJECTION
D
C
B
A
A
B
C
D
1
2
3
4
5
6
7
8
8
7
6 5
4
3
2
1
PROHIBITED.
WH-2-CD
MACHINED X.XXX =
SHEET 1 OF 1
0.005
RINNAI AMERICA CORPORATION
Systems Design Manual
103 INTERNATIONAL DRIVE
PEACHTREE CITY, GA 30269
12.15.2018
1-800-621-9419
SH
Angle =
UNLESS OTHERWISE SPECIFIED:
INTERPRET GEOMETRIC
SCALE: NTS
DO NOT SCALE DRAWING
WEIGHT:
0.010
TOLERANCING PER:
MATERIAL
FINISH
DRAWN
CHECKED
ENG APPR.
COMMENTS:
DATENAME
TITLE:
SIZE
B
DWG. NO.
REV
TOLERANCES:
Sheet Metal X.XX = 0.030
X.XXX = 0.010
Fraction = 1/32
Angle = 1.0
THE INFORMATION CONTAINED IN
THIS DRAWING IS THE SOLE
PROPERTY OF RINNAI AMERICA. ANY
REPRODUCTIONIN PART OR AS A
WHOLE WITHOUT THE WRITTEN
PERMISSION OF RINNAI AMERICA IS
PROPRIETARY AND CONFIDENTIAL