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21
Water Temperature Setting…
Maximum water temperature occurs while
the burner is on. To determine the water
temperature, turn on a hot water faucet
and place a thermometer in the water
stream. Water temperature at the faucet
may vary depending on season and length
of pipe from the water heater.
This water heater contains an
electronically controlled thermostat. From
the factory, the temperature range is
between 100°F and 120°F.
The remote control is factory preset to
100°F.
To turn the remote control ON or OFF,
press the POWER button.
To adjust the temperature to a required
setting , press the UP arrow temperature
button.
Pressing the UP or DOWN temperature
adjustment buttons will change the
temperature set point by 2°F.
The temperature set point on the remote
control cannot be increased above 112°F
when the hot water faucet is in the open
position.
Notice: The factory setting allows
operating temperatures between 100°F and
120°F. Temperatures of up to 140°F can
be achieved with the MAIN (UMC-117)
(sold separately) remote control and a dip
switch adjustment. Contact the dealer,
distributor, or Rheem to purchase the
MAIN (UMC-117) remote control.
Only qualified service personnel should
perform this adjustment. Only factory
authorized remote control(s) should be
used.
The hottest temperature water will be at
the hot water faucet closest to the water
heater.
Always remember to test the water
temperature with your hand before use and
remember that hotter water increases the
risk of scald injury.
Always supervise young children or others
who are incapacitated.
The water heater is equipped with a device
that will shut off the gas supply to the
burner if the water heater exceeds normal
operating temperatures. Refer to the
(Before You Call For Service) section
located near the back of this manual, or
contact your dealer.
WARNING: Should overheating occur or
the gas supply fail to shut off, turn off the
manual gas control valve to the appliance.
If the water heater has been subjected to
fire, flood or physical damage, turn off the
manual gas shut-off valve(s), and do not
operate the water heater again until it has
been checked by qualified personnel.
Notice: The water heater may not operate
with a small water flow. In such case,
increase the water flow. If water heater still
does not operate and hot water faucet is
completely open, increase the temperature
setting on the remote control.
!
°F
PRIORITY
POWER
ON/OFF
100 102 104 106 108 110 112 114 116 118 120 130* 140*
°F
Higher (Hotter) Lower (Cooler)
Tepid Hot Hotter Hottest
In Use Indicator
(Lit during operation)
LED Display
(Displays water temperature
and error codes)
Temperature
Adjustment
Buttons
Priority Indicato
r
ON/OFF
Indicator
*Requires the optional MAIN (UMC-117) remote control (Sold Separately).
NOTICE: If the BATH
control is turned on, the
temperature setting on the
MAIN control cannot be
changed. The BATH control(s)
will always have PRIORITY
over the MAIN control.