Rheem RTG2-53(PVN)(PVP)(XN)(XP) warranty You can find them on a label on the appliance, Injury

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Safety Information

Safety Precautions. . . . . . . 3–6 LP Gas Models . . . . . . . . . . . 5

Installation Instructions

Location, Outdoor. . . . . . . . . . 7

Location, Indoor . . . . . . . . . 8, 9

Venting . . . . . . . . . . . . . . 10-15

Water Connections. . . . . 16-18

Gas Supply. . . . . . . . . . . . . . 19

High Altitude . . . . . . . . . . . . 19

Remote Control . . . . . . . 20, 21

Electrical Connection . . . . . . 22

Typical Installation . . . . . . . . 23

Pipe Insulation . . . . . . . . . . . 24

Installation Checklist . . . . . . 25

Operating Instructions

Lighting Instructions . . . . . . 26 Water Temperature. . . . . 27, 28

Care and Cleaning

Maintenance. . . . . . . . . . . . . 29

Housekeeping . . . . . . . . 29, 30

Vent Inspection . . . . . . . . . . . 30

Burner Inspection . . . . . . . . 30

Extended Shut-Down . . . . . . 30

Draining . . . . . . . . . . . . . . . . 31

Freeze Protection . . . . . . . . . 31

Troubleshooting Tips

Before You Call

For Service. . . . . . . . . . . 32, 33

FOR YOUR RECORDS

Write the model and serial numbers here:

#

#

You can find them on a label on the appliance.

Staple sales slip or cancelled check here.

Proof of the original purchase date is needed to obtain service under the warranty.

READ THIS MANUAL

Inside you will find many helpful hints on how to use and maintain your water heater properly. A little preventive care on your part can save you time and money over the life of your water heater.

You’ll find many answers to common problems in the Troubleshooting Guide. If you review the chart of Troubleshooting Tips first, you may not need to call for service.

READ THE SAFETY INFORMATION

Your safety and the safety of others are very important. There are many important safety messages in this manual and on your appliance. Always read and obey all safety messages.

This is the safety alert symbol. Recognize this symbol

!as an indication of Important Safety Information! This symbol alerts you to potential hazards that can kill or hurt you and others.

All safety messages will follow the safety alert symbol and either the word “DANGER”, “WARNING”, “CAUTION” or “NOTICE”.

These words mean:

 

! DANGER

An imminently hazardous situation

 

that will result in death or serious

 

injury.

Customer Service

Parts List. . . . . . . . . . . . . . . . 34 If You Need Service. . . . . . . 36

Qualified Installers Only!

Dip Switch Adjustment . . . 35

2

!WARNING

!CAUTION

Notice:

A potentially hazardous situation that could result in death or serious injury and/or damage to property.

A potentially hazardous situation that may result in minor or moderate injury.

Attention is called to observe a specified procedure or maintain a specific condition.

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Contents Tankless Water Heater Injury You can find them on a label on the applianceThat will result in death or serious Install and Properly Vent the Water HEATER… N G E R Natural GAS and Liquefied Petroleum Models Read and Follow this Safety Information Carefully Installing the Outdoor water heater Location of the Outdoor water heaterInstalling the Indoor water heater Location of Indoor Water HeaterInspect Shipment Combustion and Ventilation Air Indoor Water Heater OnlyCorrosive Atmospheres Maximum Vent Length VentingVenting Lengths Minimum Vent Length The ventingDraining the Condensate Venting Through Closed SpacesAppliance Vent Adapter Installing the water heater Horizontal Vent Terminal LocationAdditional Considerations Outdoor Water HeaterIndoor Water Heater Vent Horizontal Wall Thimble Installation Vertical Vent Installation Vertical Vent Termination LocationWater Supply Connections Mounting the Water HeaterThermal Expansion Water Filter Clean Water Inlet Check Valve Nipple Relief Valve Gas Supply Leak TestingPressure Testing the Gas Supply System High AltitudeModel Remote Control InstallationControl Description Range NumberRemote Control ExtensionWall CablePenetration Suitable Indoor or Outdoor water heaters Electrical ConnectionIndoor water heaters only Indoor Models Outdoor ModelsInsulation Blankets Hot and Cold Pipe Insulation InstallationDuring Installation of this water heater… Do’sInstallation Check List Lighting the water heater To Turn OFF GAS to ApplianceTime/Temperature Relationship in Scalds Safety PrecautionsWater Temperature Setting Operating the water heaterWater Temperature Setting… Drain heater. See Draining Water Heater section on Routine Preventative MaintenanceHousekeeping Vacation and Extended Shut-Down Venting System InspectionBurner Inspection Condensate Trap InspectionDraining the Water Heater Freeze ProtectionBefore You Call For Service… Indoor Water Heater Only Outdoor Water Heater OnlyReplacement Parts Instructions For Placing a Parts OrderTemperature Setting DIP Switch Adjustment If YOU Need Service