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Rinnai INFINITY 20 - User Manual

Rinnai INFINITY 20
40 pages
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To Suit Water Heater Models -
INFINITY 32
REU-VRM3237WG
INFINITY 26 REU- VRM2626WG
INFINITY 26i REU-VRM2632FFUG
INFINITY 20 REU-VRM2024WG
INFINITY 16 REU-VRM1620WG
INFINITY ENVIRO 32 REU-KM3237WD
INFINITY ENVIRO 26 REU-KM2635WD
B16 REU-VR1620WB
B20 REU-VR2024WB
B26 REU-VR2626WB
HD250e REU-VRM3237WC
HD200e REU-VRM2632WC
HD200i REU-VRM2632FFUC
HDC211e REU-KM3237WDC
HDC211i REU-KM3237FFUDC
Operation / Installation
Manual
Rinnai Continuous Flow Water Heaters
This appliance shall be installed in accordance with:
• Manufacturers Installation Instructions
• Current AS/NZS 3000, AS/NZS 3500 & AS/NZS 5601
• Local Regulations and Municipal Building Codes including local OH&S requirements
This appliance must be installed, maintained and removed by an Authorised Person.
For continued safety of this appliance it must be installed operated and maintained
in accordance with the manufacturers instructions.
This Appliance complies
with AS 3498:2009
SAI GLOBAL LIC. W208

Table of Contents

Other manuals for Rinnai INFINITY 20

Questions and Answers

  • W
    Wendy MitchellSep 14, 2025
    How to fix noticeable reduction in water flow in Rinnai Water Heater?
    • R
      Rebecca FaulknerSep 14, 2025
      If you notice a reduction in water flow in your Rinnai Water Heater, the inlet water filter may need cleaning. It is recommended to request a service call.
  • M
    Meghan GallagherAug 25, 2025
    What to do if my Rinnai Water Heater has no ignition or gas supply?
    • J
      Jacob MatthewsAug 25, 2025
      If your Rinnai Water Heater has no ignition or gas supply, check that the gas is turned on at both the water heater and the gas meter or cylinder.
  • M
    Mark LopezAug 25, 2025
    What to do if my Rinnai INFINITY 20 Water Heater starts then the water goes cold?
    • J
      James EdwardsAug 26, 2025
      If your Rinnai Water Heater starts but the water goes cold, verify that the power is still on. Additionally, try opening your hot water tap further.
  • D
    deborahallenAug 26, 2025
    Why does my Rinnai INFINITY 20 start and then the water goes cold?
    • M
      michael03Aug 27, 2025
      If your Rinnai Water Heater starts and then the water goes cold, verify that the power is still on. Also, try opening your hot water tap further.
  • A
    Alan AlvaradoSep 14, 2025
    What to do if Heat Exchanger Outlet Sensor is Faulty in Rinnai Water Heater?
    • I
      ithomasSep 15, 2025
      If the Heat Exchanger Outlet Sensor in your Rinnai Water Heater is faulty, it is recommended to request a service call.
  • F
    fostergwendolynSep 23, 2025
    How to check for condensate pipe blockage in Rinnai INFINITY 20?
    • B
      Benjamin LambSep 23, 2025
      If you suspect a condensate pipe blockage in your Rinnai Water Heater, check the condensate drain path for any obstructions.
  • J
    Jeremy PayneSep 7, 2025
    What to do if Rinnai INFINITY 20 has Over Temperature Warning?
    • B
      Barbara RiceSep 7, 2025
      If your Rinnai Water Heater is showing an Over Temperature Warning, it is recommended to request a service call.
  • B
    Bobby FieldsSep 8, 2025
    What to do if Outgoing Water Temperature Sensor is Faulty in Rinnai INFINITY 20 Water Heater?
    • S
      stephenstimothySep 8, 2025
      If the Outgoing Water Temperature Sensor in your Rinnai Water Heater is faulty, it is recommended to request a service call.
  • A
    Aaron BlackSep 23, 2025
    What to do if Rinnai INFINITY 20 Water Heater water will not flow on power reinstatement?
    • C
      cameron30Sep 23, 2025
      If you experience a power interruption while filling a bath and the water doesn't flow when power is restored to your Rinnai Water Heater, turn off all hot water taps and press the On/Off button twice.
  • T
    Tyler WarrenAug 31, 2025
    How to fix Rinnai INFINITY 20 Water Heater no ignition/no gas supply?
    • C
      cmartinezAug 31, 2025
      If your Rinnai Water Heater won't ignite due to a potential lack of gas supply, first, verify that the gas is turned on both at the water heater itself, and at the gas meter or cylinder.

Summary

REGULATORY INFORMATION

WARNING ABOUT HOT WATER

Essential safety information regarding the dangers of heated water and burn prevention measures.

FEATURES AND BENEFITS

IMPORTANT INFORMATION

General Safety and Operational Guidelines

Key safety warnings, operational tips, and warnings about hot water flow and flue outlet safety.

OPERATION WITHOUT CONTROLLERS

GENERAL WATER CONTROL INFORMATION

Maximum Delivery Temperatures and Model Specifications

Details on factory pre-set temperatures and whether they can be changed by an authorized person.

Controller Capabilities and Configuration Options

Explains temperature ranges for controllers and available combinations of Universal and Deluxe models.

UNIVERSAL WATER CONTROLLERS

Universal Controller Overview and Operation

Identifies components, turning on, and adjusting temperature for the MC-91Q controller.

Using Multiple Universal Controllers

Guidance on transferring priority and operating multiple controllers simultaneously.

DELUXE BATHROOM WATER CONTROLLERS

Deluxe Bathroom Controller Overview and Turn On

Overview of BC-100V features, indicators, and steps to turn it on.

Setting Sound Options and Clock

Procedures for adjusting audible settings and configuring the controller's clock.

Adjusting Temperature and Safety Checks

How to set water temperature and important safety checks before use.

Operating Shower Saver;Bath Fill Function

Detailed steps for using the automatic shower saver and bath fill features.

Stopping Fill Operations and Controller Combinations

Instructions for stopping fill functions and combining controller types.

DELUXE KITCHEN WATER CONTROLLERS

Deluxe Kitchen Controller Overview and Turn On

Identifies MC-100V components, functions, and steps for turning it on.

Setting Sound Options

Procedures for adjusting audible settings and configuring sound options for the kitchen controller.

Setting the Clock and Adjusting Temperature

Procedures for setting the clock and modifying the water temperature.

SMARTSTART PRE-HEAT OPERATION

Smartstart Preheat System Overview and Activation

Explains the Smartstart® system, its benefits, and how to activate the preheat function.

TROUBLESHOOTING

Error Codes, Remedies, and Controller-less Troubleshooting

Lists common error codes, their remedies, and troubleshooting steps for units without controllers.

INSTALLATION MANUAL

General Installation Instructions

Covers regulations, appliance location, flue clearances, water supply, and mounting.

Condensate Drain (REU-KM Models Only)

Details on condensate pipe materials, installation, length, and discharge requirements for specific models.

Water Controller Installation

Steps for installing water controllers, connecting cables, and fitting specific models.

Commissioning

Procedures for testing the unit, confirming delivery temperatures, setting gas pressure, and using a checklist.

ACCESSORIES

PRODUCT RECORDS

CONTACT INFORMATION

Rinnai INFINITY 20 Specifications

General IconGeneral
TypeTankless
Temperature ControlDigital
CategoryWater Heater
Maximum Flow Rate20 L/min
Minimum Flow Rate2.4 L/min
Energy Factor0.82
Ignition SystemElectronic
Flow Rate20 L/min
Energy EfficiencyHigh
InstallationIndoor
Gas TypeNatural Gas
Temperature Range37°C to 50°C
Ignition TypeDirect Electronic Ignition
Warranty12 years on heat exchanger, 3 years on parts and labour

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