Rinnai Rsc160in Super High Efficiency Plus Residential Natural Gas Tankless Water Heater Instruction Manual (+ PDF)

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1 RSC160iN Super High Efficiency Plus Residential Natural Gas Tankless Water Heater

2 Product Information

3 Product Usage Instructions

4 Documents / Resources

4.1 References

RSC160iN Super High Efficiency Plus Residential Natural Gas Tankless Water Heater

Product Information

The product is a tankless water heater with Smart-CircTM
technology, designed to provide major time and energy savings. It
offers easy installation, high performance, and serviceability. The
product has vertically integrated components paired with advanced
recirculation technology, delivering superior performance. It
features stainless steel heat exchangers and a multi-speed DC pump
for more flexible operation. The product also includes a low flow
activation logic and a zero governor gas valve for efficient
operation. The venting options are highly flexible, with both
concentric and twin pipe configurations available.

Product Usage Instructions

To install the tankless water heater, use the provided mounting
bracket for easy vent alignment. The product is designed for quick
and easy gas conversion if needed.

For Smart-CircTM usage, follow these steps:

During the first seven days, the system learns the hot water
usage patterns based on your regular demand periods.
After the learning period, hot water will be ready according to
your previous usage schedule.
If there are any changes in usage patterns, such as additional
activity or guests, the system will adjust accordingly for the next
seven days before returning to normal.
Note that hot water usage must be greater than 20 seconds to be
added to Smart-Circ’s memory to avoid unwanted recirculation.

For venting installation, follow these guidelines:

For concentric venting, use a diameter of 2 x 4 or 3 x 5. The
equivalent length should not exceed 65′ (20 m) or 150′ (46 m)
depending on the diameter. Termination can be either vertical or
horizontal.
For twin pipe and room air venting, use a diameter of 2 or 3.
The equivalent length should not exceed 65′ (20 m) or 150′ (46 m).
Termination can be either vertical or horizontal.
Refer to the provided vent configurations examples for
different installation options.

For more information and detailed instructions, visit rinnai.us.

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Major Time and Energy Savings

Introducing the new and improved Sensei. Rinnai is delivering the same superior quality that is now even EASIER FOR THE PRO TO INSTALL. New features include: · Smart-CircTM Intelligent RecirculationTM · New more powerful multi-speed DC Pump · Simplified recirculation operation no longer requiring an internal bypass and
recirculation plug/filter · And so much more!

THE ADVANTAGES
EASY INSTALLATION

PERFORMANCE

SERVICEABILITY

Day 1 Morning Showers

6:00 am

8:00 am

Hot water use

Laundry Dishes Baths

5:00 7:00 8:30

pm pm

With Smart-CircTM, installation just got easier. External controllers are no longer required to set-up recirculation for your customers. SmartCircTM “learns” users’ hot water patterns over a seven-day period, then schedules pump and tankless recirculation patterns accordingly. Users enjoy hot water during regular demand periods, while saving energy and money.

Days 2-7

6:00 am

8:00 am

Hot water ready

5:00 7:00 8:30

pm pm

You’re all set!
Hot water will be ready for you based on your previous usage schedule. As hot water events are added throughout the week, scheduled recirculation adjusts accordingly.

What about usage changes?

Smart-CircTM does not distinguish between weekday and weekend patterns.

Additional activity, like when users have guests. This will set a usage pattern that continues for 7 days before returning to normal.

To achieve scheduled recirculation or on-demand operation, control·rTM Wi-Fi module or MC-195T controllers are required (sold separately). Additional controllers will override Smart-CircTM Intelligent RecirculationTM.

Hot water usage must be greater than 20 seconds to be added to Smart-Circ’s memory. This minimizes unwanted recirculation.

Learn more at rinnai.us

Look Inside
Vertically integrated components paired with the most advanced recirculation technology delivering superior product performance.

1 Concentric Vent or 2-Inch Exhaust* · Allows for easy use of concentric 2″/4″ or 3″/5″ direct vent or exhaust in 2-pipe or room-air configurations
2 2-Inch Intake Vent Connections · Allows for maximum flexibility with the use of 2″ PVC/CPVC/PP on vent runs up to 65 feet
3 Fiber Mesh Premix Burner* · Provides even flame distribution for optimal performance for any demand
4 Integrated Check Valve · Located between the turbo fan and combustion chamber · Prevents cold air from entering the venting system and backflow of exhaust in common vent applications

5 4

12 NEW
Simplified Recirculation Operation
· New system logic simplifies installation by eliminating the need for the internal bypass and recirculation plug/filter

11 Primary and Secondary

Stainless Steel Heat

Exchangers*

· Resists the corrosive

nature of the condensate,

which occurs earlier in the

high-efficiency combustion

process

10 NEW

Multi-Speed DC Pump

· Improved more efficient performance

· Higher flow rate

· Better head pressure and for

more flexible operation

9 NEW

12
5 Turbo Fan* · Enables longer vent runs and flexible vent options · Up to 65 feet vent runs with 2″/4″ concentric and 2″ PVC/CPVC/PP · Up to 150 feet vent runs with 3″/5″ concentric and 3″ PVC/CPVC/PP

10
6 Switching Venturi* · Provides consistent mixture of air and gas to burner for low turn-down ratios · Self-compensates in areas with low or fluctuating gas pressures

· Intelligent RecirculationTM “learns” users’ hot water patterns to schedule recirculation

· Recirculation controllers

available separately

either MC-195T or

control·r WiFi

8 NEW
Low Flow Activation Logic
· Improved performance in high temperature climates with low flow rates

7 Zero Governor Gas Valve*
· Optimal combustion by delivering the right mixture of air and gas for hot water demand

*Manufactured by Rinnai

Learn more at rinnai.us

Most Flexible Venting in the Industry
The Rinnai SENSEITM can go in an existing condensing vent system for replacement if needed, but new installs can use smaller, lighter, less expensive concentric venting.
· 14 possible vent configurations · 9 compatible vent manufacturers*

*Includes 40 PVC

2″ adaptor ring and cap allow for 3″x 5″ concentric venting or 2″ twin pipe venting

Now Including 2″ Venting Options

CONCENTRIC
DIAMETER 2″ X 4″ 3″ X 5″

EQUIVALENT LENGTH 65′ (20 M) 150′ (46 m)

TERMINATION VERTICAL OR HORIZONTAL VERTICAL OR HORIZONTAL

· Unit requires only a single penetration through the wall, reducing install time and costs · Simple positive-fit components offer a secure connection · Joint seals expand and contract with weather to prevent damage · Assembly and adjustment are easy

TWIN PIPE AND ROOM AIR

DIAMETER

MATERIAL

2″

PP, PVC, CPVC

3″

PP, PVC, CPVC

EQUIVALENT LENGTH 65′ (20 m) 150′ (46 M)

TERMINATION VERTICAL OR HORIZONTAL VERTICAL OR HORIZONTAL

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Example Vent Configurations
CONCENTRIC

2″ x 4″ horizontal wall termination configuration

TWIN PIPE

ROOM AIR

3″ x 5″ horizontal wall termination configuration

2″ x 4″ or 3″x 5″ vertical roof termination configuration

FLEX PP VENT

ELBOWS OR TEES

Vertical termination direct vent configuration

Vertical termination
room air configuration

Flex vent terminates directly
to the Tankless Water Heater

Elbow or tee side wall termination direct vent configuration

Elbow or tee side wall termination room air
configuration

Learn more at rinnai.us

Easy Installation and Serviceability
Mounting Bracket
A versatile design enables side to side movement for easy vent alignment, intended to improve single contractor installation.

Quick & Easy Gas Conversion
An inexpensive conversion kit requires just three simple steps.

1
Remove 3 screws

2
Change the orifice and parameter

3
Apply new data plate

Convenient Isolation Valves + PRV

Pressure Relief Valve Union Fitting
Gasket
Union Nut

The pressure relief valve assembly can rotate 360o to accommodate the installation of isolation valves in any application.

RSC models include isolation and PRV valves adding value compared to similar models in the industry.

Rinnai offers a (optional accessory) dedicated return valve kit that includes required check valves and purge points.

Purge valve & drain

Learn more at rinnai.us

Pressure Relief Valve Assembly
The Pressure Relief Valve Assembly can rotate 360° to accommodate the application.
Integrated check valve

Easy Parameter Adjustments
· Installation is more efficient with easily accessible control panel · Controls are integrated on internal and external models · A parameter adjustment can be made for greater hot water flow (up to 11 GPM) in areas
with warm groundwater applications · Simply use the buttons on the built-in control panels to select a temperature setting
Learn more at rinnai.us

MODEL CHART AND SPECIFICATIONS SUPER-HIGH-EFFICIENCY (CONDENSING) TANKLESS WATER HEATERS

MODEL
BUILT-IN PUMP
PRODUCT DIMENSIONS W, H, D INCHES (MM)
PRODUCT WEIGHT (LBS / KG)
INSTALLATION TYPE
MIN./MAX. BTU
TEMP. RANGE RESIDENTIAL
TEMP. RANGE COMMERCIAL*
MINIMUM ACTIVATION RATE
FLOW RATE (70°/50° TEMP. RISE)
HOT WATER FLOW RATE RANGE
CONTROLLER (STANDARD)
CONTROLLERS (OPTIONAL)
CERTIFICATIONS
WARRANTY (RESIDENTIAL)**
WARRANTY (COMMERCIAL)**
MOBILE HOME CERTIFIED
VALVES SHIPPED IN BOX
THERMAL BYPASS CROSS VALVE IN BOX
HIGH ALTITUDE APPROVED
VENTING OPTIONS
ULTRA LOW NOX
TANKLESS RACK SYSTEMTM (TRS/TRW) COMPATIBLE
1/2″ GAS LINE COMPATIBLE
WI-FI READY

RSC199i (replaces RUR199i) YES YES
18.5 X 31.3 X 11.45 (470 X 670 X 291)
68 / 31 INDOOR 15,000/199,000 98° F 140° F / 37° C 60° C 98° F 140° F / 37° C 60° C 0.4 GPM (1.5 L/MIN)
5.4 / 7.6 0.26 – 9.8 GPM (1.0 – 37 L/MIN)
YES YES YES
CONCENTRIC OR PVC/CPVC/PP YES YES YES YES

RSC199e (replaces RUR199e) YES YES
18.5 x 29.2 x 11.45 (470 x 742 x 291)
68 / 31 OUTDOOR 15,000/199,000 98° F 140° F / 37° C 60° C

RSC160i (replaces RUR160i) YES YES
18.5 X 31.3 X 11.45 (470 X 670 X 291)
66 / 30 INDOOR 15,000/160,000 98° F 140° F / 37° C 60° C

98° F 140° F / 37° C 60° C

0.4 GPM (1.5 L/MIN)

5.4 / 7.6
0.26 – 9.8 GPM (1.0 – 37 L/MIN)

INTEGRATED

4.3 / 6.1
0.26 – 8.0 GPM (1.0 – 30 L/MIN)

MC-601; for scheduled recirculation use MC-195T-US or control-rTM WiFi Module

AHRI, CSA, ENERGY STAR®
Limited 15-year on heat exchanger, 5-year on parts, 1-year on labor Register within 90 days and receive an additional 4 years of labor coverage for free ($250 value).
Limited 8-year on heat exchanger, 5-year on parts, 1-year on labor Register within 90 days and receive an additional 1 year of labor coverage for free ($250 value).

YES

UP TO 10,200 FT. (3,109 M)

N/A

CONCENTRIC OR PVC/CPVC/PP

YES

RSC160e (replaces RUR160e) YES YES
18.5 x 29.2 x 11.45 (470 x 742 x 291)
66 / 30 OUTDOOR 15,000/160,000 98° F 140° F / 37° C 60° C 98° F 140° F / 37° C 60° C 0.4 GPM (1.5 L/MIN)
4.3 / 6.1 0.26 – 8.0 GPM (1.0 – 30 L/MIN)
YES YES YES
N/A YES YES YES YES

Learn more at rinnai.us

*To achieve temperatures over 140° F (60° C), consult the Operation and Installation Manual. **For complete information and details regarding Rinnai’s warranty, visit rinnai.us. For complete information on gas sizing for Rinnai Tankless Water Heaters, consult the Operation and Installation Manual.

RU199i NO
YES (REQUIRES EXTERNAL PUMP) 18.5 X 31.3 X 11.45 (470 X 670 X 291) 64 / 29 INDOOR 15,000/199,000
98° F 140° F / 37° C 60° C* 98° F 185° F / 37° C 85° C*
0.4 GPM (1.5 L/MIN) 5.4 / 7.6
0.26 – 9.8 GPM (1.0 – 37 L/MIN)
YES YES N/A
CONCENTRIC OR PVC/CPVC/PP YES YES YES YES

RU199e NO
YES (REQUIRES EXTERNAL PUMP) 18.5 x 29.2 x 11.45 (470 x 742 x 291) 62 / 28 OUTDOOR 15,000/199,000
98° F 140° F / 37° C 60° C*

RU180i NO
YES (REQUIRES EXTERNAL PUMP) 18.5 X 31.3 X 11.45 (470 X 670 X 291) 64 / 29 INDOOR 15,000/180,000
98° F 140° F / 37° C 60° C*

98° F 185° F / 37° C 85° C*

0.4 GPM (1.5 L/MIN)

5.4 / 7.6
0.26 9.8 GPM (1.0 37 L/MIN)

INTEGRATED

4.9 /6.9
0.26 – 9.0 GPM (1.0 – 34 L/MIN)

MC-601; for scheduled recirculation use MC-195T-US or control-rTM WiFi Module

YES

N/A

UP TO 10,200 FT. (3,109 M)

N/A

CONCENTRIC OR PVC/CPVC/PP

YES

RU180e NO
YES (REQUIRES EXTERNAL PUMP) 18.5 x 29.2 x 11.45 (470 x 742 x 291)) 62 / 28 OUTDOOR 15,000/180,000
98° F 140° F / 37° C 60° C* 98° F 185° F / 37° C 85° C*
0.4 GPM (1.5 L/MIN) 4.9 / 6.9
0.26 – 9.0 GPM (1.0 – 34 L/MIN)
YES YES N/A
N/A YES YES YES YES
Learn more at rinnai.us

MODEL CHART AND SPECIFICATIONS SUPER-HIGH-EFFICIENCY (CONDENSING) TANKLESS WATER HEATERS
SE+ SERIES

COMMERCIAL SERIES

MODEL
BUILT-IN PUMP
PRODUCT DIMENSIONS W, H, D INCHES (MM)
PRODUCT WEIGHT (LBS / KG)
INSTALLATION TYPE
MIN./MAX. BTU
TEMP. RANGE RESIDENTIAL*
TEMP. RANGE COMMERCIAL*
MIN. ACTIVATION RATE
FLOW RATE (70°/50° TEMP. RISE)
HOT WATER FLOW RATE RANGE
CONTROLLER (STANDARD)
CONTROLLERS (OPTIONAL)
CERTIFICATIONS
WARRANTY (RESIDENTIAL)**
WARRANTY (COMMERCIAL)**
MOBILE HOME CERTIFIED
VALVES SHIPPED IN BOX
HIGH ALTITUDE APPROVED
VENTING OPTIONS
ULTRA LOW NOX
TANKLESS RACK SYSTEMTM (TRS/TRW) COMPATIBLE
1/2″ GAS LINE COMPATIBLE
WI-FI READY

RU160i NO
YES (REQUIRES EXTERNAL PUMP) 18.5 X 31.3 X 11.45 (470 X 670 X 291) 64 / 29 INDOOR 15,000/160,000
98° F 140° F / 37° C 60° C

RU160e NO
YES (REQUIRES EXTERNAL PUMP) 18.5 x 29.2 x 11.45 (470 x 742 x 291)) 62 / 28 OUTDOOR 15,000/160,000
98° F 140° F / 37° C 60° C

RU130i NO
YES (REQUIRES EXTERNAL PUMP) 18.5 X 31.3 X 11.45 (470 X 670 X 291) 64 / 29 INDOOR 15,000/130,000
98° F 140° F / 37° C 60° C

RU130e NO
YES (REQUIRES EXTERNAL PUMP) 18.5 x 29.2 x 11.45 (470 x 742 x 291)) 62 / 28 OUTDOOR 15,000/130,000
98° F 140° F / 37° C 60° C

98° F 185° F / 37° C 85° C
0.4 GPM (1.5 L/MIN)
4.3 / 6.1
0.26 – 8.0 GPM (1.0 – 30 L/MIN)

98° F 185° F / 37° C 85° C

0.4 GPM (1.5 L/MIN)

4.3 / 6.1

3.5 / 4.9

0.26 – 8.0 GPM (1.0 – 30 L/MIN)

0.26 – 6.6 GPM (1.0 – 24 L/MIN)

INTEGRATED

98° F 185° F / 37° C 85° C
0.4 GPM (1.5 L/MIN)
3.5 / 4.9
0.26 – 6.6 GPM (1.0 – 24 L/MIN)

MC-601; for scheduled recirculation use MC-195T-US or control-rTM WiFi Module

AHRI, CSA, ENERGY STAR®
LIMITED 15-YEAR ON HEAT EXCHANGER, 5-YEAR ON PARTS, 1-YEAR ON LABOR REGISTER WITHIN 90 DAYS AND RECEIVE AN ADDITIONAL 4 YEARS OF LABOR COVERAGE FOR FREE ($250 VALUE).
LIMITED 8-YEAR ON HEAT EXCHANGER, 5-YEAR ON PARTS, 1-YEAR ON LABOR REGISTER WITHIN 90 DAYS AND RECEIVE AN ADDITIONAL 1 YEAR OF LABOR COVERAGE FOR FREE ($250 VALUE).

YES

UP TO 10,200 FT. (3,109 M) CONCENTRIC OR PVC/CPVC/PP
YES

UP TO 10,200 FT. (3,109 M) N/A YES

UP TO 10,200 FT. (3,109 M) CONCENTRIC OR PVC/CPVC/PP
YES

UP TO 10,200 FT. (3,109 M) N/A YES

YES

CU199i NO
YES (REQUIRES EXTERNAL PUMP) 18.5 X 31.3 X 11.45 (470 X 670 X 291) 64 / 29 INDOOR 15,000/199,000 N/A
98° F 185° F / 37° C 85° C 0.4 GPM (1.5 L/MIN) 5.4 / 7.6 0.26 9.8 GPM (1.0 37 L/MIN)
NO YES UP TO 10,200 FT. (3,109 M) CONCENTRIC OR PVC/CPVC/PP YES YES YES YES

CU199e NO
YES (REQUIRES EXTERNAL PUMP) 18.5 x 29.2 x 11.45 (470 x 742 x 291)) 64 / 29 OUTDOOR 15,000/199,000 N/A

CU160i NO
YES (REQUIRES EXTERNAL PUMP) 18.5 X 31.3 X 11.45 (470 X 670 X 291) 62 / 28 INDOOR 15,000/160,000 N/A

CU160e NO
YES (REQUIRES EXTERNAL PUMP) 18.5 x 29.2 x 11.45 (470 x 742 x 291)) 62 / 28 OUTDOOR 15,000/160,000 N/A

98° F 185° F / 37° C 85° C
0.4 GPM (1.5 L/MIN)
5.4 / 7.6
0.26 9.8 GPM (1.0 37 L/MIN)

98° F 185° F / 37° C 85° C 0.4 GPM (1.5 L/MIN) 4.3 / 6.1 0.26 8.0 GPM (1.0 30 L/MIN)
INTEGRATED

98° F 185° F / 37° C 85° C
0.4 GPM (1.5 L/MIN)
4.3 / 6.1
0.26 8.0 GPM (1.0 30 L/MIN)

MC-601, MCC-601; for scheduled recirculation use MC-195T-US or control-rTM WiFi Module

AHRI, CSA, ENERGY STAR®

COMMERCIAL ONLY

LIMITED 8-YEAR ON HEAT EXCHANGER, 5-YEAR ON PARTS, 1-YEAR ON LABOR REGISTER WITHIN 90 DAYS AND RECEIVE AN ADDITIONAL 1 YEAR OF LABOR COVERAGE FOR FREE ($250 VALUE).

YES

UP TO 10,200 FT. (3,109 M) N/A YES

UP TO 10,200 FT. (3,109 M) CONCENTRIC OR PVC/CPVC/PP
YES

UP TO 10,200 FT. (3,109 M) N/A YES

YES

Learn more at rinnai.us

*To achieve temperatures over 140° F (60° C), consult the Operation and Installation Manual. To achieve temperatures up to 185° F (85° C), consult the Operation and Installation Manual.

**For complete information and details regarding Rinnai’s warranty, visit rinnai.us. For complete information on gas sizing for Rinnai Tankless Water Heaters, consult the Operation and Installation Manual.

Learn more at rinnai.us

Rinnai Manufacturing Griffin, Georgia, USA

First Major Tankless Brand to Manufacture in the USA
Rinnai established its US operations in 1974 and introduced Tankless Water Heating to the North American Market in 1999. In 2018 Rinnai manufactured its first tankless water heater in the United States in Griffin, Georgia. Our new manufacturing facility was completed in 2021 with production of the new RE· SeriesTM tankless water heaters beginning in 2022. Rinnai continues to make significant investments in expanding its operations and product portfolio, focusing on its brand promise of Creating a healthier way of living®.

Water Heating Solutions

Home Heating Solutions

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E v e r y . D e t a i l . M a t t e r s .SM
You don’t become a market leader without thinking through every single detail. Then overthinking it. Then rethinking it. Every small detail matters. A lot. From flexible venting to customizable solutions and maximum ROI, we’ve thought through all the possible barriers and potential problems before they exist. Simply put, we’re not just in the business of tankless water heaters.
We’re in the business of solving problems. That means we won’t relax. Ever. We just can’t. We’ll keep rethinking every single tiny detail, innovating, and improving our products, services, and programs.

Learn more about Rinnai high-performance Tankless Water Heaters, Hybrid Water Heating Systems, Boilers, Vent-Free Fan Convectors, EnergySaver® Direct Vent Wall Furnaces, Hydronic Air Handlers and Infrared Radiant Heaters.
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CopyrigLheta2r0n2m2oRriennaatirAinmnaeri.iucsa Corporation. Rinnai® and Creating a healthier way of living® are registered trademarks of Rinnai Corporation used under license by Rinnai America Corporation. Every. Detail. Matters.SM , RE·SeriesTM , control·rTM , and Smart-CircTM and Intelligent RecirculationTM are the trademarks of Rinnai America Corporation.
Rinnai America Corporation continually updates materials, and as such, content is subject to change without notice.

04/2022