Rheem Residential Indoor Gas Tankless Water Heater Water Temperature Setting

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IMPORTANT SAFETY INFORMATION. READ ALL INSTRUCTIONS BEFORE USING.

DANGER!

WATER TEMPERATURE SETTING

Safety and energy conservation are factors to be considered when selecting the water temperature setting . Water temperatures above 125oF can cause severe burns or death from scalding. Be sure to read and follow the warnings outlined on the label pictured below.

Water temperature over 125￿F can cause severe burns instantly or death from scalds.

Children, disabled and elderly are at highest risk of being scalded.

See instruction manual before setting temperature at water heater.

Feel water before bathing or showering.

Temperature limiting valves are available, see manual.

Output Temp

F

Set Temp

 

Error Code

 

Time/Temperature Relationship in Scalds

Water Temperature

Time To Produce a Serious Burn

120oF

More than 5 minutes

125oF

1 1/ 2 to 2 minutes

130oF

About 30 seconds

135oF

About 10 seconds

 

 

140oF

Less than 5 seconds

 

 

145oF

Less than 3 seconds

150oF

About 1 1/ 2 seconds

155oF

About 1 second

Table courtesy of Shriners Burn Institute

The chart shown above may be used as a guide

in determining the proper water temperature for your home.

DANGER: Households with small children, disabled, or elderly persons may require a 120oF. Or lower temperature setting to prevent contact with HOT water.

Maximum water temperature occurs while burner is on. To find water temperature being delivered, turn on a hot water faucet and place a thermometer in the water stream and read the thermometer.

The temperature of the water at the outlet of the water heater can be regulated by setting the temperature on control panel . The control panel was set at 110oF before it was shipped from the factory.

The illustration to the bottom left illustrates the control panel and how to adjust the water temperature.

Notice: When this water heater is supplying general purpose hot water requirements for use by individuals, a thermostatically controlled mixing valve for reducing point of use water temperature is recommended to reduce the risk of scald injury. Contact a licensed plumber or the local plumbing authority for further information.

Notice: The factory setting allows operating temperatures between 90oF and 140oF.

DOWNUP ON/OFF

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Contents Tankless Water Heater Safety Information Installation InstructionsCare and Cleaning Troubleshooting TipsInstall and Properly Vent the Water Heater Water Temperature Setting Natural GAS and Liquefied Petroleum Models Read and Follow this Safety Information Carefully Installing the water heater LocationCombustion and Ventilation Air Corrosive AtmospheresWater Supply Connections Mounting the Water HeaterWater pressure is not recommended Govern the installation of relief valves Relief ValveLeak Testing Pressure Testing the Gas Supply SystemGas Supply High AltitudeVenting Venting LengthsMaximum Vent Length Minimum Vent LengthVent Adapter Venting Through Closed SpacesDraining the Condensate Horizontal Vent Terminal Location Additional Considerations