BLD2021-1704_Manufacturer_Specifications_and_Installation_Instructions_12.15.2021_6.25.20_PM_2575974R innai.
■ FLEXIBLE VENTING OPTIONS
• Concentric or Schedule 40 PVC/CPVC
• Direct Vent (Concentric and Twin Pipe)
• Non -Direct Vent (Room Air)
• Common Vent (Direct Vent and Room Air)
Vent lengths up to 150 ft with eight Tankless Water Heater
units.
• Maximum Equivalent Vent Lengths:
Twin Pipe
Vent Sizes
2 in. (51 mm)
3 in. (76 mm)
Vent Lengths
65 ft (20 m)
150 ft (46 m)
Concentric
Vent Sizes
2 in. X 4 in.
3 in. X 5 in.
Vent Lengths
65 ft (20 m)
150 ft (46 m)
■ EASE OF INSTALLATION AND
SERVICEABILITY
• Compact Design to Save Space
• Wi-Fi Technology for Remote Monitoring and Management
• Sliding Mounting Bracket for Easy Installation
• Simple Gas Conversion
■ OPTIONAL ACCESSORIES
Room Air Screen, Condensate Neutralizer, ScaleCutter, Drain
Down Kit, Additional Controllers, Recess Box, Recirculation
Pump, DPS/MIS Switch, EZConnectT" Cables, Cascade Cables,
control•rT" Wi-Fi Module, Wireless Accessories, and many
more. Visit rinnai.us for a complete list of accessories.
COMMERCIAL
SUPER -HIGH -EFFICIENCY (CONDENSING)
TANKLESS WATER HEATER
Installation Type Internal (Indoor) Commercial Applications
Model Numbers CU199i (REU-N3237FFC-US)
CU160i(REU-N2530FFC-US)
Approved Gas Types Natural and Propane
UEF up to 0.93
Thermal Efficiency: Up
Efficiency Ratings not certified to 97%
by AHRI EF: 0.96 (CU199i)
0.95 (CU160i)
High Altitude Approved Up to 10,200 ft (3,109 m)
Water Flow Control Water Flow Sensor, Electronic Water
Control and Bypass Control
Controller Standard: Integrated Controller
Optional: MC-91-2US
Certifications AHRI, ANSI Z21.10.3, CSA 4.3, and ENERGY
STAR®
Warranty
• Heat Exchanger: 8 years or 12,000 operation hours, whichever occurs
first
• All Other Parts and Components: 5 Years
• Reasonable Labor: 1 Year
Safety Devices
Flame Failure - Flame Rod, Boiling Protection, Combustion Fan RPM
Check, Over Current - Glass Fuse, Remaining Flame (OHS) and Automatic
Frost Protection
Included with Purchase
Tankless Water Heater, Wall Mounting Bracket, Pressure Relief Valve and
Adapter, Isolation Valve Kit, Vent Screens (x2), Vent Screen
Screws (x2), and Self -Tapping Screws (x2)
Additional Features
• Complies with South • Ultra Low NOx
Coast Air Quality e Tankless Rack System— Compatible
Management District • 1 2 in. 13 mm Gas Line Compatible
14 ng/J or 20 ppm / ( ) p
NOx Emission Levels
COMMERCIAL APPLICATIONS
Commercial Tankless
Rack Systems
Demand Duolm
Commercial Hybrid System
CIPSA°CUS IRRIMM MT.,
LOW Eno SANITATION "
CONTENT
CERTIFIED TO ANSI Z21.10.3 - CSA 4.3
RINNALUS . 1-800-621-9419
ITm TECHNICAL
SPECIFICATIONSSENSE
SPECIFICATION
CU199i
CU160i
Dimensions - w, h, d
18.5 in. x 26.4 in. x 11.4 in. (470 mm x 670 mm x 290 mm)
Minimum Gas
15,000
Consumption Btu/h
Maximum Gas
Consumption Btu/h
199,000
160,000
Flow Rate'
0.26 - 9.8 GPM
0.26 - 8.0 GPM
(Min - Max)
(1.0- 37 L/min)
(1.0- 30 L/min)
Max Flow Rate with
11 GPM
9 GPM
Parameter Adjustment
(42 L/min)
(34 L/min)
Weight
64 Ib (29 kg)
62 lb (28 kg)
Sound Level
49 dB
48 dB
Normal
84 W
52 W
Standby
1.3 W
Freeze Protection
148 W
ai
�u
Max Current
4 Amps
Fuse
10 Amps
• Minimum: 98' F (37' C) Default
Temperature
• Maximum: 140° F (60` C) Default
185' F (85' C) With Parameter Adjustment
By -Pass Flow Control
Electronic
Gas Supply Pressure
• Natural: 3.5 in. w.c. - 10.5 in. w.c.
• Propane: 8.0 in. w.c. - 13.5 in. w.c.
Ignition System
Direct Electronic Ignition
Electronic Connections
• Appliance: AC 120 Volts, 60Hz.
• Temperature Controller: DC 12 Volts (Digital)
Water Supply Pressure
• Minimum: 50 PSI (Recommended 60-80 PSI for max performance)
• Maximum: 150 PSI
Controller Cable
Non -Polarized Two Core Cable (Minimum 22 AWG)
• Gas Supply: 3/4 in. (19 mm) NPT
Service Connections
• Cold Water Inlet: 3/4 in. (19 mm) NPT
• Hot Water Outlet: 3/4 in. (19 mm) NPT
• Condensate Drain: 1/2 in. (13 mm) NPT
• Top: 2 in. (51 mm)* • Back: 0 in.
Clearances
• Bottom/Ground: 12 in. (305 mm) • Sides: 2 in. (51 mm)***
• Front: 0 in.** • Vent: 0 in.
* 0 in. from vent components
** Clearance for servicing is 24 in. (610 mm) in front of water heater
*** Add 0.25 in. (6.35 mm) for recess box
Minimum flow may vary slightly depending on the temperature setting and the inlet water temperature.
Minimum activation flow is 0.4 GPM (1.5 L/min).
Z The maximum gas supply pressure must not exceed the value specified by the manufacturer.
Flow curves apply only to incoming water temperatures of 70° F (21° C) or less.
For incoming water temperatures greater than 70° F (21' C), please contact Rinnai.
12
Fl,...,
9
8
f 7
a
S6
05
LL
v4
3 3
2
1
0
in. (mm)I
FRONT
5.90
(150)
o�
v
�M co Co
o
0,
N r, M n
18.5
(47070)
SIDE
6.08
(154)4 Vent Connection:
2 in. (51 mm)
nominal PVC/
Polypropylene or
3 in./5 in.
Concentric.
'oZZ,
od N
N
�1 1.45
(290)
18.5
(47070)
SIDE
6.08
(154)4 Vent Connection:
2 in. (51 mm)
nominal PVC/
Polypropylene or
3 in./5 in.
Concentric.
'oZZ,
od N
N
�1 1.45
(290)
A
7.60
193
0 25 50 75 100 125 150
Delta T - Temperature Rise (°F)
I
I