Ruud AP13370-2 installation instructions Water Temperature Setting

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 of a water heater’s gas control. Water temperatures above 125°F (52°C) can cause severe burns or death from scalding. Be sure to read and follow the warnings outlined on the label pictured below. This label is also located on the water heater.

!D A N G E R

HOT

BURN

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.

Notice: Mixing valves are available for reducing point of use water temperature by mixing hot and cold water in branch water lines. Contact a licensed plumber or the local plumbing authority for further information.

Time/Temperature Relationship in Scalds

Water Temperature	Time To Produce a Serious Burn
120°F (49°C)	More than 5 minutes
125°F (52°C)	11/2 to 2 minutes
130°F (54°C)	About 30 seconds
135°F (57°C)	About 10 seconds
140°F (60°C)	Less than 5 seconds
145°F (63°C)	Less than 3 seconds
150°F (66°C)	About 11/2 seconds
155°F (68°C)	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 120°F (49°C) or lower gas control (thermostat) setting to prevent contact with “HOT” water.

Maximum water temperatures occur just after the burner has shut off. To find water temperature being delivered, turn on a hot water faucet and place a thermometer in the water stream and read the thermometer.(See page 21 and 22 for more details.)

The temperature of the water in the heater can be regulated by setting the temperature dial on the front of the gas control (thermostat). To comply with safety regulations the gas control(thermostat) was set at its lowest setting before the water heater was shipped from the factory.

	120°F (49°C)	115°F (46°C)
	125°F (52°C)
		110°F
	130°F (54°C)	(43°C)
	135°F (57°C)	105°F
		(41°C)
	140°F (60°C)	100°F
	145°F (63°C)	(38°C)
	150°F (66°C)	95°F
		(35°C)
	155°F (68°C)	68°F (20°C)
		(Vacation Setting)
4	160°F (71°C)	Temperatures are approximate

The illustration at the left details the approximate water temperature

for each mark on the Gas Control (Thermostat) Temperature Dial.

!DANGER: Hotter water increases the potential for Hot Water

SCALDS.