Rheem GG Series - Manual (Page 19)

19
Water Temperature Time To Produce a Serious Burn
120°F More than 5 minutes
125°F 1 1 / 2 to 2 minutes
130°F About 30 seconds
135°F About 10 seconds
140°F Less than 5 seconds
145°F Less than 3 seconds
150°F About 1 1 / 2 seconds
155°F About 1 second
Table courtesy of Shriners Burn Institute
Time/Temperature Relationship in Scalds
DANGER: Hotter water
increases the Potential
for Hot Water SCALDS.
Households with small
children, disabled, or elderly
persons may require a 120°F.
or lower gas control
(thermostat) setting to
prevent contact with HOT
water.
Water Temperature Setting
The temperature of the water in the water
heater can be regulated by setting the
temperature dial on the front of the gas
control (thermostat).
Safety and energy conservation are
factors to be considered when selecting
the water temperature setting of the
water heater’s gas control
(thermostat(s)). The lower the
temperature setting, the greater the
savings in energy and operating costs.
To comply with safety regulations the gas
control (thermostat) was factory set at
120°F. or less where local codes require.
This is the recommended starting point.
Water temperatures above 125°F.
can cause severe burns or death from
scalding. Be sure to read and follow the
warnings outlined in this manual and on
the label on the water heater. This label is
located on the water heater near the gas
control (thermostat) access panel.
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.
The chart below may be used as a guide in
determining the proper water temperature
for your home.
Burner Adjustment
The natural gas and liquified petroleum
(LP) gas water heaters, equipped with the
sheet metal burner, do not require
adjustment. The natural gas and liquified
petroleum (LP) gas water heater equipped
with the cast iron burner, however, does
require primary air adjustment at the
time of installation.
An air shutter is located at the air
opening end of the burner.
To adjust the burner, loosen air shutter
screw and close to soften flame and open
shutter to sharpen the flame.
The proper flame should be soft blue, not
yellow or with a hard blue center.
Final air adjustment should be made after
5 minutes of continuous burning.
Adjustments
The thermostatic gas valve is equipped for
total regulation of the main burner and
pilot gas pressures and does not require
adjustment.
Safety Instructions
Installation Instructions
Operating Instructions
Care and Cleaning
T
roubleshooting Tips
Customer Service