Rheem AP13731 You can find them on a label on the appliance, That will result in death or serious

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Safety Information

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

Installation Instructions

Location of Indoor. . . . . . . . . 7

Location of Outdoor. . . . . . . . 8

Water Connections. . . . . 10-11

Gas Supply. . . . . . . . . . . . . . 12

High Altitude . . . . . . . . . . . . 12

Venting . . . . . . . . . . . . . . 13-18

Remote Control. . . . . . . . 19-20

Electrical Connection. . . . . . 21

Typical Installation Indoor. . 22

Typical Installation Outdoor 23

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

Installation Checklist . . . 24-25

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

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.

Before You Call

 

For Service

32,33

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 Installand Properly Vent the Water HEATER… N G E R Natural GAS and Liquefied Petroleum Models Read and Follow this Safety Information Carefully Installing the Indoor water heater Location of Indoor Water HeaterInstalling the Outdoor water heater Location of the Outdoor water heaterCorrosive Atmospheres Installing the water heaterCombustion and Ventilation Air Indoor Water Heater Only Inspect ShipmentMounting the Water Heater Water Supply ConnectionsRelief Valve Lines.ReliefGas Supply Leak TestingPressure Testing the Gas Supply System High AltitudeMaximum Vent Length VentingVenting Lengths Minimum Vent LengthDraining the Condensate Venting Through Closed SpacesVent Adapter US Installations Horizontal Vent Terminal LocationIndoor Water Heater Additional ConsiderationsVent Horizontal Wall Thimble Installation Vertical Vent Installation Vertical Vent Termination LocationAvailability Remote Control InstallationRemote Control Model Number DescriptionInstalling the Main Remote Control Connecting the remote control to the water heaterPower Cord Indoor water heaters only Electrical ConnectionTypical Installation of Indoor Water Heater Not SuppliedInstalling the water heater Typical Installation of Outdoor Water HeaterInsulation 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 The Water Heater section on Routine Preventative MaintenanceHousekeeping Vacation and Extended Shut-Down Venting System InspectionBurner Inspection Draining 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