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Rinnai RL94e REU-VC2837WD-US User Manual

Rinnai RL94e REU-VC2837WD-US
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DirectVentTanklessWaterHeater
InstallaƟonandOperaƟonManual
Donotstoreorusegasolineorotherammablevaporsandliquidsinthevicinityofthisoranyother
appliance.
WHATTODOIFYOUSMELLGAS
x Donottrytolightanyappliance.
x Donottouchanyelectricalswitch;donotuseanyphoneinyourbuilding.
x Immediatelycallyourgassupplierfromaneighbor’sphone.Followthegassupplier’sinstrucƟons.
x Ifyoucannotreachyourgassupplier,calltheredepartment.
InstallaƟonandservicemustbeperformedbyalicensedprofessional.
ThisenƟremanualmustbeleŌfortheconsumer.Theconsumermustreadand
refertothismanualforproperoperaƟonandtomaintainthewaterheater.
IftheinformaƟonintheseinstrucƟonsisnotfollowedexactly,areorexplosion
mayresultcausingpropertydamage,personalinjuryordeath.
WARNING
READALLOFTHEINSTRUCTIONSTHOROUGHLYBEFOREINSTALLINGOROPERATINGTHISWATERHEATER.
ThismanualprovidesinformaƟonontheinstallaƟon,operaƟon,andmaintenanceofthewaterheater.Forproper
operaƟonandsafety,itisimportanttofollowtheinstrucƟonsandadheretothesafetyprecauƟons.
Alicensedprofessionalmustinstallthewaterheater accordingtotheexact
instrucƟonsonpages4Ͳ30.
TheconsumermustreadtheenƟremanualtoproperlyoperatethewaterheaterandtohaveregularmaintenance
performed.
ANSZ21.10.3භCSA4.3
FORINDOORAPPLICATIONSONLY
RL75i.....................REUͲVC2528FFUDͲUS
REUͲVC2528FFUD(A)ͲUS
RL94i.....................REUͲVC2837FFUDͲUS
FOROUTDOORAPPLICATIONSONLY
RL75e....................REUͲVC2528WDͲUS
REUͲVC2528WD(A)ͲUS
RL94e....................REUͲVC2837WDͲUS

Table of Contents

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Rinnai RL94e REU-VC2837WD-US Specifications

General IconGeneral
TypeTankless
InstallationIndoor
Energy SourceNatural Gas or Propane
Flow Rate9.4 GPM
Energy Factor0.82
Gas TypeNatural Gas or Propane
Minimum Flow Rate0.4 GPM
Voltage120V
Ignition TypeElectronic
Maximum BTU199, 000 BTU
Temperature Range98°F to 140°F
Minimum BTU Input15, 000 BTU/hr
Warranty12 years heat exchanger, 5 years parts, 1 year labor

Summary

Safety Behaviors and Practices for the Consumer and Installer

Important Safety Warnings

Critical safety warnings regarding gas, fire, explosion, and proper handling.

Burn Hazard Precautions

Warning about hot exhaust, vent, and hot water outlet pipes causing burns.

Installation Instructions

Installer Qualifications

Skills required for licensed professionals to install the appliance correctly.

General Installation Guidelines

Key DO NOT and MUST DO instructions for proper installation.

Determine Installation Location

Vent Termination Clearances

Unit Clearances

Maximum Vent Length (Indoor Models)

Freeze Protection

Measures to protect the water heater and lines from freezing damage.

Installation of Venting (Indoor Models)

Venting Guidelines

DO NOT and MUST DO instructions for vent system installation.

Flue Installation Details

Condensate Management

Installation of Plumbing

Pressure Relief Valve Requirements

Requirements for installing the pressure relief valve.

Isolation Valves and Pressure Relief Valve

Connect Water Heater to Water Supply

Installation of Gas Supply

Critical warnings and steps for safely connecting the gas supply.

Gas Pipe Sizing

Connect Electricity

Installation of Temperature Controller

Final Installation Checklist

Operation Instructions

Important Facts and Safety

Essential information and safety precautions before operating the water heater.

Consumer Operation Guidelines

Safe Operation Steps

Step-by-step guide for safe operation and what to do if gas is smelled.

Using the Temperature Controller

How to Set the Temperature

Temperature Options Without Controller

Diagnostic Codes

Explains how to display diagnostic codes and what data they represent.

Diagnostic Codes and Remedies

Code Definitions and Remedies

List of diagnostic codes, their definitions, and recommended remedies.

Diagnostic Codes and Remedies (Continued)

Further Diagnostic Codes

Further diagnostic codes, definitions, and remedies for operational issues.

Required Maintenance

Routine Cleaning and Inspection

Steps for cleaning components, inspecting vents, and managing scale/snow.

Valve and Flame Inspection

Winterizing Procedures

Recommendations for protecting the unit and its plumbing during freezing weather.

Flushing the Heat Exchanger

Heat Exchanger Cleaning Procedure

Step-by-step guide for flushing the heat exchanger to remove lime build-up.

Manual Draining and Winterizing

Limited Warranty Details

Warranty Exclusions

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