System Application Drawings

I-Series Combi Boiler
with Closely Spaced
Tee and Air Handler
Dedicated Return
Hydronic Furnace
Thermostat
Outdoor Reset
Optional LWCO
Domestic
Hot Water
Supply
Cold Water
Supply Line
Optional
Building
Return Line
Pump 1
DHW
Recirc
Pump
Timer
(Optional)
Pump 1
Thermostat
LWCO (as needed)
Outdoor Reset
DHW
Recirc
Pump
PC Board Wiring
for this
application example
24V AC for external Output
T
C NO NC
TIMER with Isolated Contact
Isolated
Contact
Timer drives isolated contact
Timer
0
D
C
B
A
A
B
C
D
1
2
3
4
5
6
7
8
8
7
6
5
4
3
2
1
LAST REVISION COMMENTS
TOLERANCES:
Sheet Metal X.XX =
0.030
X.XXX = 0.010
Fraction = 1/32
Angle = 1.0
MACHINED X.XXX = 0.005
Angle = 0.010
INTERPRET GEOMETRIC
TOLERANCING PER:
MATERIAL
FINISH
DRAWN
CHECKED
ENG APPR.
MFG APPR.
Q.A.
COMMENTS:
DATE NAME
TITLE:
SIZE
B
DWG. NO.
REV
SCALE: NTS
UNLESS OTHERWISE SPECIFIED:
05.29.2019
SHEET 1 OF 1
1I-C-1A-PS
DO NOT SCALE DRAWING
Rinnai America Corporation
103 International Drive
Peachtree City, GA 30269
1-800-621-9419
RINNAI AMERICA CORPORATION
103 INTERNATIONAL DRIVE
PEACHTREE CITY, GA 30269
1-800-621-9419
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
PROHIBITED.
THIRD ANGLE PROJECTION
PROPRIETARY AND CONFIDENTIAL
PP
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.
Notes:
Condensate piping shall be CPVC or PVC material and
shall not be smaller than the drain connection on the
appliance.
Condensate must be disposed of according to local
codes.
Air eliminator should be located at least 12 inches away
from the first bend on the supply.
Reference the boiler installation manual for
recommended glycol brands and mixed ratio.
Reference vent section of the installation manual
regarding venting.
System pump(s) must be sized based on heat loss and
head loss through the system.
Refer to the installation manual for dip switch settings
based on your application.
If an NC terminal on the timer is present, it does not
need to be connected to the PC Board.
Do not connect the timer to any of the 120V terminals
on the PC Board or to any other 120V components.
A 24 V AC timer can be powered by the boiler auxiliary
contact (Max current 0.7A).The timer needs to control
an isolated normally open circuit connected to T/T2
terminals to active recirculation.
No power should be provided to T/T2 contacts.
RS
05.29.2019
Page 15