Rinnai RSC160iN Super High Efficiency Plus Residential Natural Gas Tankless Water Heater Instruction Manual

Rinnai 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:

1. During the first seven days, the system learns the hot water usage patterns based on your regular demand periods.
2. After the learning period, hot water will be ready according to your previous usage schedule.
3. 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.
4. 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 configuration examples for different installation options.

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

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-Circ™ Intelligent Recirculation™
• New more powerful multi-speed DC Pump
• Simplified recirculation operation no longer requiring an internal bypass and recirculation plug/filter
• And so much more!

Intelligent Recirculation

With Smart-Circ™, installation just got easier. External controllers are no longer required to set-up recirculation for your customers. Smart-Circ™ “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.

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.

THE ADVANTAGES

What about usage changes?

• Smart-Circ™ 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•r™ Wi-Fi module or MC-195T controllers are required (sold separately). Additional controllers will override Smart-Circ™ Intelligent Recirculation™.

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

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. 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. **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

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

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

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

9. NEW
   Intelligent Recirculation™
   “learns” users’ hot water patterns to schedule recirculation
   Recirculation controllers available separately either MC-195T or control•r WiFi

10. NEW
    Multi-Speed DC Pump
    Improved more efficient performance
    Higher flow rate
    Better head pressure and for more flexible operation

11. Primary and Secondary
    **Stainless Steel Heat Exchangers***
    Resists the corrosive nature of the condensate, which occurs earlier in the high-efficiency combustion process

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

Most Flexible Venting in the Industry

The Rinnai SENSEI™ 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*

Now Including 2″ Venting Options

CONCENTRIC

DIAMETER| EQUIVALENT LENGTH| TERMINATION
2″ X 4″| 65’ (20 M)| VERTICAL OR HORIZONTAL
3” X 5”| 150’ (46 m)| 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| EQUIVALENT LENGTH| TERMINATION
2”| PP, PVC, CPVC| 65’ (20 m)| VERTICAL OR HORIZONTAL
3”| PP, PVC, CPVC| 150’ (46 M) VERTICAL OR HORIZONTAL

Example Vent Configurations

CONCENTRIC

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.

Convenient
Isolation Valves + PRV
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.

Easy
Parameter Adjustments

MODEL CHART AND SPECIFICATIONS

SUPER-HIGH-EFFICIENCY (CONDENSING) TANKLESS WATER HEATERS

MODEL

|

RSC199i (replaces RUR199i)

|

RSC199e (replaces RUR199e)

|

RSC160i (replaces RUR160i)

|

RSC160e (replaces RUR160e)

|

RU199i

|

RU199e

|

RU180i

|

RU180e

---|---|---|---|---|---|---|---|---
BUILT-IN PUMP| YES| YES| YES| YES| NO| NO| NO| NO
 |

YES

|

YES

|

YES

|

YES

|

YES (REQUIRES EXTERNAL PUMP)

|

YES (REQUIRES EXTERNAL PUMP)

|

YES (REQUIRES EXTERNAL PUMP)

|

YES (REQUIRES EXTERNAL PUMP)

PRODUCT DIMENSIONS W, H, D INCHES (MM)| 18.5 X 31.3 X 11.45

(470 X 670 X 291)

| 18.5 x 29.2 x 11.45

(470 x 742 x 291)

| 18.5 X 31.3 X 11.45

(470 X 670 X 291)

| 18.5 x 29.2 x 11.45

(470 x 742 x 291)

| 18.5 X 31.3 X 11.45

(470 X 670 X 291)

| 18.5 x 29.2 x 11.45

(470 x 742 x 291)

| 18.5 X 31.3 X 11.45

(470 X 670 X 291)

| 18.5 x 29.2 x 11.45

(470 x 742 x 291))

PRODUCT WEIGHT (LBS / KG)|

68 / 31

|

68 / 31

|

66 / 30

|

66 / 30

|

64 / 29

|

62 / 28

|

64 / 29

|

62 / 28

INSTALLATION TYPE| INDOOR| OUTDOOR| INDOOR| OUTDOOR| INDOOR| OUTDOOR| INDOOR| OUTDOOR
MIN./MAX. BTU| 15,000/199,000| 15,000/199,000| 15,000/160,000| 15,000/160,000| 15,000/199,000| 15,000/199,000| 15,000/180,000| 15,000/180,000
TEMP. RANGE RESIDENTIAL|

98° F – 140° F / 37° C – 60° C

|

98° F – 140° F / 37° C – 60° C

|

98° F – 140° F / 37° C – 60° C

|

98° F – 140° F / 37° C – 60° C

|

98° F – 140° F / 37° C – 60° C*

|

98° F – 140° F / 37° C – 60° C*

|

98° F – 140° F / 37° C – 60° C*

|

98° F – 140° F / 37° C – 60° C*

TEMP. RANGE COMMERCIAL*|

98° F – 140° F / 37° C – 60° C

|

98° F – 140° F / 37° C – 60° C

|

98° F – 140° F / 37° C – 60° C

|

98° F – 140° F / 37° C – 60° C

|

98° F – 185° F / 37° C – 85° C*

|

98° F – 185° F / 37° C – 85° C*

|

98° F – 185° F / 37° C – 85° C*

|

98° F – 185° F / 37° C – 85° C*

MINIMUM ACTIVATION RATE|

0.4 GPM (1.5 L/MIN)

|

0.4 GPM (1.5 L/MIN)

|

0.4 GPM (1.5 L/MIN)

|

0.4 GPM (1.5 L/MIN)

|

0.4 GPM (1.5 L/MIN)

|

0.4 GPM (1.5 L/MIN)

|

0.4 GPM (1.5 L/MIN)

|

0.4 GPM (1.5 L/MIN)

FLOW RATE

(70°/50° TEMP. RISE)

|

5.4 / 7.6

|

5.4 / 7.6

|

4.3 / 6.1

|

4.3 / 6.1

|

5.4 / 7.6

|

5.4 / 7.6

|

4.9 /6.9

|

4.9 / 6.9

HOT WATER FLOW RATE RANGE| 0.26 – 9.8 GPM (1.0 – 37 L/MIN)| 0.26 – 9.8 GPM (1.0 – 37 L/MIN)| 0.26 – 8.0 GPM (1.0 – 30 L/MIN)| 0.26 – 8.0 GPM (1.0 – 30 L/MIN)| 0.26 – 9.8 GPM (1.0 – 37 L/MIN)| 0.26 – 9.8 GPM (1.0 – 37 L/MIN)| 0.26 – 9.0 GPM (1.0 – 34 L/MIN)| 0.26 – 9.0 GPM (1.0 – 34 L/MIN)
CONTROLLER (STANDARD)|

INTEGRATED

|

INTEGRATED

CONTROLLERS (OPTIONAL)|

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

|

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

CERTIFICATIONS| AHRI, CSA, ENERGY STAR®| AHRI, CSA, ENERGY STAR®
WARRANTY (RESIDENTIAL)**| 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 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).

WARRANTY (COMMERCIAL)**| 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).

| 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).

MOBILE HOME CERTIFIED|

YES

|

YES

|

YES

|

YES

|

YES

|

YES

|

YES

|

YES

VALVES SHIPPED IN BOX|

YES

|

YES

|

YES

|

YES

|

YES

|

YES

|

YES

|

YES

THERMAL BYPASS CROSS VALVE IN BOX|

YES

|

YES

|

YES

|

YES

|

N/A

|

N/A

|

N/A

|

N/A

HIGH ALTITUDE APPROVED|

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

|

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

VENTING OPTIONS

|

CONCENTRIC OR PVC/CPVC/PP

|

N/A

|

CONCENTRIC OR PVC/CPVC/PP

|

N/A

|

CONCENTRIC OR PVC/CPVC/PP

|

N/A

|

CONCENTRIC OR PVC/CPVC/PP

|

N/A

ULTRA LOW NOX

|

YES

|

YES

|

YES

|

YES

|

YES

|

YES

|

YES

|

YES

TANKLESS RACK SYSTEM™ (TRS/TRW) COMPATIBLE|

YES

|

YES

|

YES

|

YES

|

YES

|

YES

|

YES

|

YES

1/2″ GAS LINE COMPATIBLE†|

YES

|

YES

|

YES

|

YES

|

YES

|

YES

|

YES

|

YES

WI-FI READY| YES| YES| YES| YES| YES| YES| YES| YES

*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.

MODEL

|

RU160i

|

RU160e

|

RU130i

|

RU130e

|

CU199i

|

CU199e

|

CU160i

|

CU160e

BUILT-IN PUMP| NO| NO| NO| NO| NO| NO| NO| NO
 |

YES (REQUIRES EXTERNAL PUMP)

|

YES (REQUIRES EXTERNAL PUMP)

|

YES (REQUIRES EXTERNAL PUMP)

|

YES (REQUIRES EXTERNAL PUMP)

|

YES (REQUIRES EXTERNAL PUMP)

|

YES (REQUIRES EXTERNAL PUMP)

|

YES (REQUIRES EXTERNAL PUMP)

|

YES (REQUIRES EXTERNAL PUMP)

PRODUCT DIMENSIONS W, H, D INCHES (MM)| 18.5 X 31.3 X 11.45

(470 X 670 X 291)

| 18.5 x 29.2 x 11.45

(470 x 742 x 291))

| 18.5 X 31.3 X 11.45

(470 X 670 X 291)

| 18.5 x 29.2 x 11.45

(470 x 742 x 291))

| 18.5 X 31.3 X 11.45

(470 X 670 X 291)

| 18.5 x 29.2 x 11.45

(470 x 742 x 291))

| 18.5 X 31.3 X 11.45

(470 X 670 X 291)

| 18.5 x 29.2 x 11.45

(470 x 742 x 291))

PRODUCT WEIGHT (LBS / KG)|

64 / 29

|

62 / 28

|

64 / 29

|

62 / 28

|

64 / 29

|

64 / 29

|

62 / 28

|

62 / 28

INSTALLATION TYPE| INDOOR| OUTDOOR| INDOOR| OUTDOOR| INDOOR| OUTDOOR| INDOOR| OUTDOOR
MIN./MAX. BTU| 15,000/160,000| 15,000/160,000| 15,000/130,000| 15,000/130,000| 15,000/199,000| 15,000/199,000| 15,000/160,000| 15,000/160,000
**TEMP. RANGE RESIDENTIAL***|

98° F – 140° F / 37° C – 60° C

|

98° F – 140° F / 37° C – 60° C

|

98° F – 140° F / 37° C – 60° C

|

98° F – 140° F / 37° C – 60° C

|

N/A

|

N/A

|

N/A

|

N/A

TEMP. RANGE *COMMERCIAL†**|

98° F – 185° F / 37° C – 85° C

|

98° F – 185° F / 37° C – 85° C

|

98° F – 185° F / 37° C – 85° C

|

98° F – 185° F / 37° C – 85° C

|

98° F – 185° F / 37° C – 85° C

|

98° F – 185° F / 37° C – 85° C

|

98° F – 185° F / 37° C – 85° C

|

98° F – 185° F / 37° C – 85° C

MIN. ACTIVATION RATE| 0.4 GPM (1.5 L/MIN)| 0.4 GPM (1.5 L/MIN)| 0.4 GPM (1.5 L/MIN)| 0.4 GPM (1.5 L/MIN)| 0.4 GPM (1.5 L/MIN)| 0.4 GPM (1.5 L/MIN)| 0.4 GPM (1.5 L/MIN)| 0.4 GPM (1.5 L/MIN)
FLOW RATE

(70°/50° TEMP. RISE)

|

4.3 / 6.1

|

4.3 / 6.1

|

3.5 / 4.9

|

3.5 / 4.9

|

5.4 / 7.6

|

5.4 / 7.6

|

4.3 / 6.1

|

4.3 / 6.1

HOT WATER FLOW RATE RANGE| 0.26 – 8.0 GPM (1.0 – 30 L/MIN)| 0.26 – 8.0 GPM (1.0 – 30 L/MIN)| 0.26 – 6.6 GPM (1.0 – 24 L/MIN)| 0.26 – 6.6 GPM (1.0 – 24 L/MIN)| 0.26 – 9.8 GPM (1.0 – 37 L/MIN)| 0.26 – 9.8 GPM (1.0 – 37 L/MIN)| 0.26 – 8.0 GPM (1.0 – 30 L/MIN)| 0.26 – 8.0 GPM (1.0 – 30 L/MIN)
CONTROLLER (STANDARD)|

INTEGRATED

|

INTEGRATED

CONTROLLERS (OPTIONAL)|

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

|

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

CERTIFICATIONS| AHRI, CSA, ENERGY STAR®| AHRI, CSA, ENERGY STAR®
WARRANTY (RESIDENTIAL)**| 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).

|

COMMERCIAL ONLY

WARRANTY (COMMERCIAL)**| 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).

| 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).

MOBILE HOME CERTIFIED|

YES

|

YES

|

YES

|

YES

|

NO

|

NO

|

NO

|

NO

VALVES SHIPPED IN BOX|

YES

|

YES

|

YES

|

YES

|

YES

|

YES

|

YES

|

YES

HIGH ALTITUDE APPROVED|

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

|

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

|

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

|

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

|

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

|

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

|

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

|

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

VENTING OPTIONS| CONCENTRIC OR PVC/CPVC/PP| N/A| CONCENTRIC OR PVC/CPVC/PP| N/A| CONCENTRIC OR PVC/CPVC/PP| N/A| CONCENTRIC OR PVC/CPVC/PP| N/A
ULTRA LOW NOX| YES| YES| YES| YES| YES| YES| YES| YES
TANKLESS RACK SYSTEM™ (TRS/TRW) COMPATIBLE|

YES

|

YES

|

YES

|

YES

|

YES

|

YES

|

YES

|

YES

1/2″ GAS LINE COMPATIBLE††|

YES

|

YES

|

YES

|

YES

|

YES

|

YES

|

YES

|

YES

WI-FI READY| YES| YES| YES| YES| YES| YES| YES| YES

*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.

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• Series™ 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®.

Ever y. Detail. Matters.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.

rinnai.us

Rinnai America Corporation
103 International Drive | Peachtree City, GA 30269 1-800-621-9419 | rinnai.us

PROUD SPONSOR

2021195
Copyright 2022 Rinnai America Corporation. Rinna® 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•Series™’, control-™, and Smart-Circ™ and Intelligent Recirculation’ are the trademarks of Rinnai America Corporation.
Rinnai America Corporation continually updates materials, and as such, content is subject to change without notice.
04/9029

References

• #1 Selling Tankless Water Heater in the US | Rinnai

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