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Rinnai REU-V2426WB User Manual

Rinnai REU-V2426WB
65 pages
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INFINITY 16 REU-V1616W
V1200 REU-V1620W
INFINITY 18 REU-V2018W
INFINITY 20 REU-V2020W
Rinnai High Capacity Continuous Flow Gas Hot Water System
NOTE: This manual does not apply to models: REU-V1620WG, REU-V1620WB, REU-V2024WG, REU-V2024WE,
REU-V2426WB, REU-V2626WG, REU-VM2630WD, REU-VM2630WC, REU-V2632FFUG, REU-VM2632FFUC
SERVICE MANUAL
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Rinnai REU-V2426WB Specifications

General IconGeneral
Model NumberREU-V2426WB
CategoryGas Heater
Fuel TypeNatural Gas
Ignition TypeElectronic Ignition
VentingDirect Vent
TypeTankless
Gas Consumption (Max)199, 000 BTU/hr
Energy Efficiency0.82
Dimensions9.8 inches
Warranty5 years

Summary

Rinnai Service Manual

Specifications

Sensors and Safety Devices

Operational Flow Chart

Operation Principles

Ignition Process

Details the ignition sequence, from water flow detection to burner ignition.

Temperature and Flow Control

Describes how the PCB controls temperature and flow rate for optimal performance.

Main Components

Printed Circuit Board (PCB)

Describes the PCB's role in controlling all operational functions.

Time Charts

Wiring Diagram

Dip Switch Settings

Fault Finding Guide

Fault Finding Table Overview

Introduces the fault finding table and related diagnostic resources.

Component Circuit Value Table

Component and Circuit Checks

Combustion Fan Circuit Checks

Procedures for checking the combustion fan motor and rotation sensor.

Solenoid Valve Circuit Checks

Details checks for main, small, and large solenoid valve circuits.

Flame Rod Circuit Checks

Instructions for checking the flame rod's function and connections.

Overheat Switch & Water Flow Sensor Checks

Procedures for testing overheat switches and water flow sensors.

Thermal Fuse & Surge Protector Checks

Guidance on checking thermal fuses, surge protectors, and electrical fuses.

Maintenance Monitor and Error History

Gas Conversion Procedure

Dismantling for Service

Front Panel and PCB Removal

Instructions for removing the front panel and the PCB unit.

Water Flow Sensor & Sparker Removal

Procedures for removing the water flow sensor, servo, and sparker.

Exploded Diagram

Parts List

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