Temperature Settings; Temperature Table Of Controller - A.O. Smith T-H3S-DV Installation Manual And Owner's Manual

On-demand water heater
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Turn on the 120 VAC power supply to the unit (the water
1.
heater or the multi-unit controller).
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 in Stand By to increase the
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).
5.
Increasing temperature above 140 °F (60 °C)
-540 (T-H3) model only-:
1. The water heater must be in Stand By to increase the
temperature.
2. Press the "HOT" button to set 140 °F (60 °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 145 °F (63 °C).
4. Press the "HOT" button to set up to 185 °F (85 °C).

TEMPERATURE TABLE OF CONTROLLER

a) For 240 (T-H3J) and 340 (T-H3S) models
°F
100 105 110 115 120* 125 130 135 140
°C
38
40
43
45
b) For 540 (T-H3) model
°F
100 105 110 115 120* 125 130 135 140 145 150 155 160 165 175 185
°C
38
40
43
*Factory setting (Default): 120 °F
DO NOT set to 185 °F (85 °C) if you use your water heater in a recirculation
system. This will cause damage to the heater and void the warranty.
(This temperature setting is available for the 540 (T-H3) model only.)
WARNING
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TEMPERATURE SETTINGS

-Set temperature
Operation
50*
52
55
57
45
50*
52
55
57
45
Screen on the controller
Temperature controller
60
60
63
65
68
Page
Owner's Guide
Normal Operation
Remote controller
(EX.: 120 °F)
70
75
80
85

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