Rinnai RXP199i, RXP160i Condensing Tankless Water Heater Owner’s Manual

Rinnai RXP199i, RXP160i Condensing Tankless Water Heater

Product Usage Instructions

Installation

1. Choose the appropriate venting option and size based on your installation type.
2. Ensure proper clearances as specified in the manual for safe installation.
3. Connect the gas supply following the recommended pressure ranges for natural gas or propane.
4. Mount the water heater securely using the provided wall mounting bracket.

Maintenance

1. Regularly check for any buildup or blockages in the venting system.
2. Inspect the water flow control components for any signs of wear or damage.
3. Monitor the efficiency of the heater and adjust settings as needed for optimal performance.

Troubleshooting

1. If you encounter any error codes or issues, refer to the user manual for troubleshooting steps.
2. Contact customer support if problems persist or if professional assistance is required.

FAQ

• Q: What should I do if the heater displays an error code?
• A: Error codes indicate specific issues with the unit. Refer to the manual for error code meanings and troubleshooting steps.
• Q: Can I install the water heater outdoors?
• A: Yes, the product is suitable for outdoor installation with the appropriate vent cap.
• Q: How often should I schedule maintenance for the water heater?
• A: Regular maintenance checks are recommended at least once a year to ensure optimal performance and longevity of the unit.

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)
• Maximum Equivalent Vent Lengths:

Twin Pipe (PVC/CPVC and PP)

Concentric

EASE OF INSTALLATION AND SERVICEABILITY

• Smart-Sense: Adaptive gas valve technology – No gas conversion kit required.
• Versa-Vent: Outdoor vent cap adapts to any SENSEITM RX Series model for outdoor installation.
• Smart Connect: Allows you to connect your phone or tablet to SENSEITM RX Series Via Bluetooth® using Rinnai CentralTM app.
• Quick-Flush: Provides an efficient flushing procedure to make periodic preventive maintenance a simple task to perform.

Warranty

• Heat Exchanger: 15 years or 12,000 operation hours, whichever occurs first
• All Other Parts and Components: 5 years
• Reasonable Labor: 5 years Requires product to be registered within 90 days of installation or labor warranty defaults to 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, Vent Screens (x2), Screws (x2), Self-Tapping Screws (x4) and Thermal Bypass Valve

Additional Features

• Mobile Home Certified
• Ultra Low NOx
• Tankless Rack System Compatible
• 1/2 in. (13 mm) Gas Line Compatible
• Complies with South Coast Air Quality Management District 14 ng/J or 20 ppm NOx Emission Levels
• EZConnect—1 RXP and 1 RX as System

OPTIONAL ACCESSORIES

Description| Part Number| Description| Part Number| Description| Part Number
---|---|---|---|---|---
Isolation Valves and PRV| MIVK-T-LW| Pipe Cover| PCD11-SHS| Controllers| MC-601-BK/W, MC-195T-US
Outdoor Vent Cap| RXOVC| Recess Box for SENSEITM RX Series| RGBCTWHRX| Condensate Neutralizer| 804000074
Dedicated Return with Isolation Valves and PRV| 107000639| Bottom Plate for Pipe Cover| 109001364| Scale Cutter| 103000038
Retrofit Door for RX in RGB-CTWH-4| 104000335| Wireless Module| RWM200| Scale Cutter Refill| 103000039
Retrofit Door for RX in RGB-CTWH-3, 2, 1| 104000336| Recirculation Push Button| RPB200| OPU Switch| REU-OPU3
Gas Conversion Kit (Labels Only)| 104000330| EZConnect Cable| REU-EZC-3| Leak Detection Kit| RXLeakKit

New—for SENSEITM RX/CX Series Water Heaters

TECHNICAL SPECIFICATIONS

SENSEITM RXP TECHNICAL SPECIFICATIONS

SPECIFICATION| RXP199i| RXP160i
Dimensions – w, h, d| 18.5 in. x 25.8 in. x 11.4 in. (470 mm x 654 mm x 290 mm)
Minimum Gas Consumption Btu/h| 15,000
Maximum Gas Consumption Btu/h| 199,000| 160,000
Flow Rate1 (Min-Max)| 0.13 – 11.0 GPM (0.5 – 42 L/min)| 0.13 – 9.0 GPM (0.5 – 34 L/min)
Weight| 58 lb (26 kg)| 57 lb (26 kg)
Sound Level| 49 dB| 48 dB
Electrical| Normal| 98 W| 73 W
Normal with

Pump Operation

| 170 W| 149 W
Standby| 1.3 W
Freeze

Protection

| 174 W
Max Current| 4 Amps
Fuse| 10 Amps

Temperature

| ·   Minimum:  98° F (37° C) Default (Crossover Mode: 120°F (49°C))

·   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: 15 PSI (Recommended 50 PSI for max performance)

·   Maximum: 150 PSI

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.**                                         · Vent: 0 in.

• 0 in. from vent components.
• Clearance for servicing is 24 in. (610 mm) in front of the water heater.
• Add 0.25 in. (6.35 mm) for the recess box.

1. Activation flow rate may vary slightly depending on the temperature setting and the inlet water temperature.
2. The maximum gas supply pressure must not exceed the value specified by the manufacturer.

Rinnai products are continually being updated and improved; therefore, specifications are subject to change without prior notice.

SENSEITM RXP 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.

NOTE: Maximum flow rates may vary based on set temperature, Delta T and altitude.

DIMENSIONS

SENSEITM RXP DIMENSIONS

FRONT

SIDE

Vent Connection

• 2 in. (51 mm) nominal PVC/CPVC/PP or 3 in./5 in. Concentric.

BOTTOM

SENSEIRXP PUMP PERFORMANCE AND PUMP + TANKLESS PERFORMANCE CURVE

Recirculation Pump Control

• Smart-Circ.™ “learns” users’ hot water patterns to activate recirculation.
• Manual schedule selection is available with Accessory controllers (MC-195T or Wi-Fi module.

Internal Multi-Speed DC Pump

• The integrated pump allows for recirculation through a dedicated return line or crossover with a 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).

CONTACT

• Rinnai America Corporation
• 103 International Drive, Peachtree City, GA 30269
• 1-800-621-9419
• rinnai.us
• ©2024 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 before and upon installation.

References

• Leading Tankless Water Heater in the US | Rinnai

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