Ruud AP15318 Use & Care Manual page 23

Notice: The remote control
cannot be turned on when
water is flowing or circulating
through the water heater.
Notice: Display shows
°F only.
AP15318 tankless 10 30 09.indd 23
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.
The factory setting of the remote control
temperature range is between 100°F (38°C)
and 120°F (49°C).
The remote control is factory preset to 100°F
(38°C).
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.
The temperature set point on the remote
control cannot be increased above 112°F
(44°C) when a hot water faucet is in the
open position.
Notice: The factory setting allows operating
temperatures between 100°F (38°C) and
120°F (49°C). Temperatures of 85°F (29°C)
and up to140°F (60°C) can be achieved with
the MAIN (UMC-­117) remote control. Only
qualified service personnel should perform
this adjustment. Only factory authorized
remote control(s) should be used.
In Use Indicator
(Lit during operation)
LED Display
(Displays water
temperature and error
codes)
85 100 102 104 106 108 110 112 114 116 118 120
38 39 40 41 42 43 44 46 47 48 49
29
*
Temperatures 85°F(29°C) and up to 140°F (60°C) can be achieved with the
Main (UMC-­117) remote control. See page 30 and 31 for minimum and
maximum temperature adjustment.
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, physical damage, or has been
under water, 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.
PRIORITY
°F
POWER
ON/OFF
Higher (Hotter) Lower (Cooler)
°F
125* 130* 140*
°C
52* 54* 60*
Priority Indicator
Temperature
Adjustment
Buttons
ON/OFF
Indicator
23
11/9/2009 3:17:41 PM