GENERAL SAFETYTo meet commercial hot water use needs, the highlimit safety control on this water heater will shut off themain gas valve before the outlet temperature reaches210°F. However, water temperatures over 125°F cancause instant severe burns or death from scalds.When supplying general purpose hot water, the rec-ommended initial setting for the temperature control is125°F.Safety and energy conservation are factors to be con-sidered when setting the water temperature on thethermostat. The most energy-efficient operation willresult when the temperature setting is the lowest thatsatisfies the needs of the application.Water temperature over 125°F can cause instantsevere burns or death from scalds. Children, disabledand elderly are at highest risk of being scalded.• Feel water before bathing or showering.• Temperature limiting valves are available.Maximum water temperatures occur just after theheater’s burner has shut off. To determine the watertemperature being delivered, turn on a hot waterfaucet and place a thermometer in the hot waterstream and read the thermometer.This section applies to Hot Water Supply Boilers andHot Water Heaters ONLY. For sanitary rinse applica-tions where outlet temperatures of 180°F to 195°F arerequired, a boiler is recommended since the 210°Flimit on water heaters will NOT allow the heater tomaintain these desired sanitary rinse temperatures.Water temperature over 125°F cancause instant severe burns or deathfrom scalds.Children, disabled, and elderly areat highest risk of being scalded.See instruction manual before set-ting temperature at water heater.Feel water before bathing or show-ering.Temperature limiting valves areavailable, see manual.Time/TemperatureRelationships in ScaldsThe following chart details the relationship of watertemperature and time with regard to scald injury andmay be used as a guide in determining the safestwater temperature for your applications.WaterTemp.Time to Produce SeriousBurn120°F More than 5 minutes125°F 1-1/2 to 2 minutes130°F About 30 seconds135°F About 10 seconds140°F Less than 5 seconds145°F Less than 3 seconds150°F About 1-1/2 seconds155°F About 1 secondTable courtesy of The Shriners Burn InstituteTable B: Time to Produce Serious BurnNOTE: When this water heater is supplying generalpurpose hot water for use by individuals, athermostatically controlled mixing valve for reducingpoint of use water temperature is recommended toreduce the risk of scald injury. Contact a licensedplumber or the local plumbing authority for furtherinformation.California Hot Water Supply, Inc.(800) 249-72447