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Rinnai REU-KBD3237FFUDC-US User Manual

Rinnai REU-KBD3237FFUDC-US
86 pages
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1 5/4/2018
© 2016 Rinnai America Corporation
PROPRIETARY and CONFIDENTIAL
Enhancing Lives By Changing The Way Water Is Heated
Rinnai Condensing Tankless
Water Heater Training Program
Level III
Service Fundamentals

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Rinnai REU-KBD3237FFUDC-US Specifications

General IconGeneral
BrandRinnai
ModelREU-KBD3237FFUDC-US
CategoryWater Heater
LanguageEnglish

Summary

Rinnai Service and Support

Technical Support Department

Support for technical issues, function, and repair of products.

Engineering / Applications Department

Assistance with product use, applications, and sizing.

Water Heater Disassembly & Reassembly

Front Panel Removal

Step-by-step guide to removing the front cover of the unit.

Heat Exchanger Assembly Removal

Instructions for disconnecting wiring and removing the heat exchanger.

Burner Assembly Removal

Steps to remove the burner assembly for service or replacement.

Gas Valve Assembly Removal

Steps to remove the gas valve assembly from the unit.

Overheat Protection and Safeties

Thermistor Functions

Explains the role of outgoing and outlet water thermistors.

Bi-metal Switches

Details on overheat bi-metal switches and their shut-down functions.

Thermal Fuse Operation

Explanation of the thermal fuse and its role in overheat protection.

Safety Line of Defense

Overview of multiple layers of technology ensuring safe operation.

Electrical Diagnostics

Key Points for Electrical Testing

Essential tips for conducting electrical tests and obtaining accurate readings.

Multimeter Settings

Proper multimeter settings for various electrical measurements.

Gas Solenoid Valve Resistance

Measuring resistance of gas solenoid valves for diagnostics.

Troubleshooting and Maintenance

Maintenance: Fault Codes

Table of error codes, faults, and their remedies.

Troubleshooting Water Flow Issues

Common problems and solutions related to water flow.

Troubleshooting Gas Issues

Common problems and solutions related to insufficient gas supply.

Setting Manifold Gas Pressures

Procedures for checking and adjusting manifold gas pressures.

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