Temperature Settings - A.O. Smith T-H3M-DV Installation Manual And Owner's Manual

On-demand water heater
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1.
Turn on the 120 VAC power supply to the water heater
Press the "ON/OFF" button on the controller in order to
2.
turn the controller on
3.
When ON, the STAND BY LED is lit
It shows the set temperature on its display as shown in
4.
the picture on the right (EX: 120 °F)
Press the "HOT" button or the "COLD" button to set the
temperature setting of the unit
Increasing temperature
from 120 °F (50 °C) to 125 °F (52 °C) :
1 The water heater must be Stand By to increase the
5.
temperature
2 Press the "HOT" button to set 120 °F (50 °C)
3 Press and hold the "INFO" button and the "HOT"
button for at least 3 seconds The remote will emit a
beep and change to 125 °F (52 °C)
4 Press the "HOT" button to set up to 140 °F (60 °C)
There are 2 preset temperatures (120 °F (50 °C) and 140 °F (60 °C)) that you can select from by changing
the DIPswitch settings on the computer board without the controller See the table below
When the controller is in normal operation, the set temperature of the controller is given
priority over the set temperature of the DIPswitch settings If the remote becomes disabled, the com-
puter will refer to the setting of this DIPswitch
• The temperature has been preset at the factory to 120 °F (50 °C).
120 °F (50 °C)
DEFAULT
ON 1 2 3 4 5 6 7 8 9 10
OFF
No 9 : OFF
NOTE: Only change the switches with dark squares The dark squares
indicate the direction the DIPswitches should be set to

TEMPERATURE SETTINGS

-Using controller-
Operation
-Temperature setting on the PCB-
(Without controller)
140 °F (60 °C)
1 2 3 4 5 6 7 8 9 10
ON
OFF
No 9 : ON
38
Screen on the controller
Bank of
DIPswitches
Page
Owner's Guide
Normal Operation
(EX: 120 °F)
Computer board

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