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Rinnai Infinity N1600i - User Manual

Rinnai Infinity N1600i
60 pages
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Continuous Flow Water Heaters
Operation and Installation Manual
Indoor models:
Infinity N1600i (REU-N3237FFC-E)
Infinity N1300i (REU-N2635FFC-E)
Outdoor models:
Infinity N1600e (REU-N3237WC-E)
Infinity N1300e (REU-N2635WC-E)

Table of Contents

Questions and Answers

  • B
    Brandon SkinnerAug 17, 2025
    What to do if Rinnai Infinity N1600i Water Heater starts then shuts down?
    • B
      butlertanyaAug 17, 2025
      If your Rinnai unit starts and then immediately shuts down, try these steps: check the power supply, check the gas cock, and ensure you open the hot water faucets more.
  • K
    Kari JacksonAug 19, 2025
    Why does my Rinnai Infinity N1600i Water Heater start then go cold?
    • J
      Jacqueline JonesAug 19, 2025
      If your Rinnai water heater starts but the water then goes cold, verify the power supply and open the hot water faucets more.
  • D
    David CampbellAug 22, 2025
    How to troubleshoot Rinnai Infinity N1600i with no ignition?
    • D
      Douglas KnightAug 22, 2025
      If your Rinnai water heater fails to ignite, check that the gas is turned on at both the water heater and the gas meter or cylinder. It is recommended to schedule a service call.
  • C
    Casey BeckAug 26, 2025
    What does 'Service Soon' mean on Rinnai Water Heater?
    • T
      Tammy SmithAug 26, 2025
      If your Rinnai water heater displays 'Service Soon', it’s time for a service. The heat exchanger may need to be flushed to prevent damage. Refer to the flushing instruction in the manual.
  • D
    Daniel WilliamsAug 28, 2025
    How to fix Rinnai Infinity N1600i that won't start?
    • C
      cory44Aug 28, 2025
      If your Rinnai Water Heater isn't starting, you can try the following: check the power supply, clean the water filter, and inspect the water inlet on the appliance.
  • J
    james44Aug 30, 2025
    How to fix low water flow in Rinnai Infinity N1600i?
    • W
      wholtAug 30, 2025
      If you notice a reduction in water flow in your Rinnai water heater, the inlet water filter likely needs to be cleaned. It is recommended to schedule a service call.
  • C
    cathyallenSep 2, 2025
    What causes flame failure in Rinnai Infinity N1600i?
    • P
      Peter PerrySep 2, 2025
      If you are experiencing flame failure or low gas flow with your Rinnai water heater, check that the gas is turned on at the water heater and gas meter or cylinder. Also, check for any obstructions to the flue outlet. It is recommended to schedule a service call.
  • C
    Cassandra SanchezSep 5, 2025
    What to do if Rinnai Water Heater exhaust gas temperature is too high?
    • S
      Samantha ConnerSep 5, 2025
      If your Rinnai water heater shows a high exhaust gas temperature, ensure the condensate line is not blocked and confirm the inlet water temperature is not too high. It is recommended to schedule a service call.
  • J
    juliewilsonSep 7, 2025
    Why Rinnai Infinity N1600i doesn't respond when water flows?
    • D
      dixonlawrenceSep 8, 2025
      If nothing happens when water flow is activated on your Rinnai water heater, verify you have at least the minimum flow rate required to fire the unit. Clean the inlet water supply filter. On new installations, make sure the hot and cold water lines are not reversed.
  • N
    Nicole FletcherSep 10, 2025
    What to do if Rinnai Infinity N1600i stops during bath fill?
    • J
      James BaxterSep 12, 2025
      If there's a power interruption during a bath fill and water won't flow after power returns, turn off all hot water taps and press the On/Off button twice.

Summary

General Advice

Warranty Information

Warranty Period, Coverage, and Service

Details on warranty duration, what is covered, service requirements, and exclusions.

Users Instructions

Features and Benefits

Highlights key features and advantages of the Rinnai Infinity SENSEI Series water heater.

Important Safety Information

Crucial safety warnings, symbols, and precautions for using the water heater.

Operation

Guides on operating the water heater, including temperature selection and controls.

Selectable Temperatures

How to select and adjust water temperatures using control panels.

Standard Control Panel Operation

Operating the water heater using the standard control panel.

Multiple Control Panel Operation

Using multiple remote controls for enhanced temperature management.

Operational Safety Information

Safety guidelines and precautions during the operation of the water heater.

Trouble Shooting

Guidance on diagnosing and resolving common issues with the water heater.

Error Codes

Understanding and troubleshooting error codes displayed by the unit.

Maintenance Procedures

Routine maintenance tasks for optimal performance and longevity.

Installers Instructions

Installation Warnings

Critical warnings and safety precautions for installing the water heater.

Appliance Location

Guidelines for selecting an appropriate and safe location for the water heater.

Unpacking and Main Components

Instructions for unpacking and identifying main components of the water heater.

Dimensions and Schematics

Technical drawings showing dimensions and operational principles of the unit.

Installation Procedures

Step-by-step guides for installing various connections and systems.

Clearance Requirements

Minimum clearances needed around the appliance for installation and maintenance.

Water and Gas Connections

Procedures for correctly connecting water and gas supply lines.

Electrical Connection

Proper electrical connection guidelines, safety, and compliance.

Flue System Installation

Requirements and procedures for installing the flue system correctly.

Condensate Management

Guidelines and procedures for managing condensate drainage.

Condensate Guidelines

Best practices for managing condensate drainage to prevent damage.

Condensate Drain Pipe Connection

Step-by-step guide for connecting the condensate drain pipe.

Condensate Pump Wiring

Wiring instructions for the condensate pump safety switch.

Remote Controller Installation

Instructions for installing optional remote controllers for enhanced control.

General Information

Overview of remote controller capabilities and installation considerations.

Standard Controller Installation

Step-by-step guide for installing the standard remote controller.

Control Panel Programming

Procedures for programming control panels and setting temperatures.

Cascade Communication

Setup and operation for connecting multiple water heaters in cascade.

Connection with Cable Cascade

How to connect Rinnai Infinity SENSEI units in cascade using cables.

Programming Cascade Communication

Setting up cascade communication parameters for multiple units.

Recirculation Mode

Installation and operation of the recirculation mode for faster hot water.

Installation

Installing the recirculation pump and setting up the mode.

Sequence of Operation

Understanding the operational sequence for recirculation modes.

Commissioning

Steps and checks required for commissioning the installed water heater.

Benchmark Commissioning Sheet

Checklist for ensuring compliance with building regulations and manufacturer standards.

Maintenance Instructions

PCB Interface and Functions

Layout and operation of the Printed Circuit Board (PCB) interface and parameters.

PCB Interface Operation

How to navigate and operate the Printed Circuit Board (PCB) interface.

Parameter Settings

Guide to adjusting various operational parameters via the PCB.

Service Indicator

Understanding and resetting the service indicator for maintenance reminders.

Gas Conversion

Procedures for converting the appliance to different gas types.

Gas Orifice Replacement

Procedure for replacing gas orifices for different gas types.

PCB Setting Parameters for Gas

Adjusting PCB parameters for gas type conversion.

Air Intake Pipe Replacement

Replacing the air intake pipe for specific gas conversions.

Final Operation Check

Verifying correct operation after gas conversion and final checks.

PCB Data Transfer

How to transfer data between PCBs when replacing components.

Performance Data

Displaying and interpreting performance data from the control panel.

Water Flow Charts

Graphical representation of water flow rates under different conditions.

Operational Flow Chart

Visual guide to the appliance's operational logic and fault detection.

Wiring and Diagnostics

Information on electrical wiring diagrams and diagnostic points.

Wiring Diagram

Electrical schematic showing connections between components and the PCB.

Diagnostic Points

Identifying key measurement points and their expected values for troubleshooting.

General Maintenance

Covers cleaning, filter checks, flushing, and draining procedures.

Cleaning Procedures

Instructions for cleaning the appliance, vent system, motors, and controllers.

Air Filter Inspection and Cleaning

How to inspect and clean the air filter for optimal airflow.

Flushing the Heat Exchanger

Procedure for flushing the heat exchanger to prevent lime scale damage.

Manual Draining

Steps for manually draining the water heater for storage or freezing prevention.

Maintenance Indicator

How to use and reset the maintenance indicator code.

Service Record

Logbook for recording service intervals and engineer details.

Technical Data

Comprehensive technical specifications and performance data for the appliance.

Product Fiche

Summary of product specifications and energy efficiency information.

Rinnai Infinity N1600i Specifications

General IconGeneral
BrandRinnai
ModelInfinity N1600i
CategoryWater Heater
LanguageEnglish

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