Rinnai RSC199e External Condensing Tankless Water Heater User Guide
- June 15, 2024
- Rinnai
Table of Contents
RSC199e External Condensing
Tankless Water Heater
User Guide
RSC199e External Condensing Tankless Water Heater
RSC199e, RSC160e
EXTERNAL (OUTDOOR) CONDENSING TAN KLESS WATER HEATER
CIRC-LOGIC RECIRCULATION TECHNOLOGY
Rinnai Circa-Logic recirculation technology allows users to set recirculation patterns that coincide with their hot water usage patterns. Hot water is available when needed, without the expense of circulating it during times of inactivity. Two recirculation modes are available:
- Dedicated Mode – With a dedicated return line, the integrated pump recirculates water from the tankless water heater through the return line and back to the heater.
- Crossover Mode – In applications where a dedicated return line is not available or is difficult to install, Circa-Logic technology allows for the simple installation of a Thermal Bypass Valve (included with purchase) at the fixture farthest away from the water heater.
Smart-Circa™
Intelligent Recirculation
- Intelligent Recirculation “learns” users’ hot water patterns to schedule recirculation.
EASE OF INSTALLATION AND SERVICEABILITY
- Compact Design to Save Space
- Wi-Fi Technology for Remote Monitoring and Management
- Simple Gas Conversion
(WITH INTEGRATED RECIRCULATION PUMP)
SUPER-HIGH-EFFICIENCY (CONDENSING)
TANKLESS WATER HEATER
| Installation Type | External (Outdoor) Applications |
|---|---|
| Model Numbers | RSC199e (REU-NP3237W-US(A)) |
RSC160e (REU-NP2530W-US(A))
Approved Gas Types| Natural and Propane
Efficiency| | UEF: 0.95
Ratings not certified by AHRI| EF: 0.96
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: MC-91-2US
Required for scheduled Recirculation: MC-195T-US or control.rTM• Wi-H Module
Certifications| AHRI, ANSI Z21.10.3, CSA 4.3, and ENERGY STARS
Warranty
- Heat Exchanger: 15 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, Thermal Bypass Valve, Pressure Relief Valve and
Adapter, Isolation Valve Kit, Integrated Controller
Additional Features
- Complies with South Coast Air Quality Management District 14 ng/J or 20 ppm NOx Emission Levels
- Ultra Low NOx
- Tankless Rack System™ Compatible
- 1/2 in. (13 mm) Gas Line Compatible
OPTIONAL ACCESSORIES
Room Air Screen, Condensate Neutralizer, Scale Cutter, Drain Down Kit, Additional Controllers, Pipe Cover, Recirculation Pump, DPS/MIS Switch, EZConnect™ Cables, Wireless Accessories, and many more. Visit rinnai.us for a complete list of accessories.
SENSEI TM TECHNICAL SPECIFICATIONS
| SPECIFICATION | RSC199e | I RSC160e |
|---|---|---|
| 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 Consumption Btu/h| 15,000
Maximum Gas Consumption Btu/h| 199,000| 160,000
Flow Rate’ (Min – Max)| 0.26 – 9.8 GPM
(1.0 – 37 L/min)| 0.26 – 8.0 GPM
(1.0 – 30 L/min)
Max Flow Rate with Parameter Adjustment| 11 GPM
(42 L/min)| 9 GPM
(34 L/min)
Weight| 68 lb (31 kg)| 66 lb (30 kg)
Sound Level| 53 dB| 52 dB
Electrical| Normal| 78 W| 55 W
Standby| 2 3 W
Freeze Protection| 172 W
Max Current| 4 Amps
Fuse| 10 Amps
Temperature| •Minimum: 98° F (37° C) Default
120° F (49° C) Crossover Mode
•Maximum: 120° F (49° C) Default 140° F (60° C) With Parameter Adjustment
By-Pass Flow Control| Electronic
Gas Supply Pressure2| •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)
Service Connections| •Gas Supply: 3/4 in. (19 mm) NPT
•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
Clearances| •Top: 2 in. (51 mm)* • Back: 0 in.
•Bottom/Ground: 12 in. (305 mm) • Sides: 2 in. (51 mm)*
•Front: 0 in. • Front Exhaust: 24 in. (610 mm)
- 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
1 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).
2 The maximum gas supply pressure must not exceed the value specified by the manufacturer.
SENSEI™ WATER FLOW CURVE
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. 
SENSEI ™ PUMP PERFORMANCE AND PUMP + TANKLESS PERFORMANCE CURVE
Recirculation Pump Control| • Smart-Circa™ “learns” users’ hot water patterns
to activate recirculation.
• Manual schedule selection is available with Accessory controllers (MC-195T
or
controller™ Wi-Fi module)
---|---
Internal Multi-Speed DC Pump| Integrated pump allows for recirculation through
a dedicated return line or crossover
with thermal bypass valve.
Maximum Recirculation Pipe Lengths| • 400 equivalent feet for 3/4 in. pipe
diameter
• 100 equivalent feet for 1/2 in. pipe diameter
Take equivalent elbow lengths into consideration when calculating pipe length.
For dedicated return lines: Total length includes both hot water supply and
dedicated return lines.
Cross-over mode: Total length includes both hot water supply and cold water
piping length from the tankless water heater to the thermal bypass valve.
Cross-over mode requires the use of a thermal bypass valve (included).
Rinnai America Corporation • 103 International Drive, Peachtree City, GA 30269
• 1-800-621-9419 • rinnai.us
©2022 Rinnai America Corporation. Rinnai America Corporation continually
updates materials, and as such, content is subject to change without notice.
Local, state, provincial, federal and national fuel gas
codes must be adhered to prior to and upon installation.
05/2023 RSCe-SP-2
SENSEI™ with Pump Outdoor Spec Sheet
RINNAI.US ● 1 -800-621-9419
References
Read User Manual Online (PDF format)
Read User Manual Online (PDF format) >>