A.O. Smith THR-160 Installation Instructions And Use & Care Manual page 51

9 Press the UP or DOWN bu on to scroll to the desired me delay.
Press the SETTING bu on to save the se ng.
10 Go to the next step if the se ng in A06 is 0 (recircula on with a return line).
Go to step 19 if the se ng in A06 is 1 (crossover valve recircula on).
Steps 11-18 sets the inlet water temperatures to ac vate/deac vate the pump.
These values are subtracted from the water heater's set temperature.
For example, with the default A03/A04 se ngs and set temperature of 120°F (49°C),
the pump will ac vate when the inlet water temperature goes below 100°F (38°C)
and deac vate when the inlet water temperature goes above 110°F (43°C).
11 Press the UP bu on to go to mode A03.
Press the SETTING bu on. The display will alternate between the mode number and
12
the current se ng.
Press the UP or DOWN bu on to select the desired se ng. Refer to Table 17 for
13
available se ngs.
14 Press the SETTING bu on to save the se ng.
15 Press the UP bu on to go to mode A04.
Press the SETTING bu on. The display will alternate between the mode number and
16
the current se ng.
Press the UP or DOWN bu on to select the desired se ng. Refer to Table 17 for
17
available se ngs.
18 Press the SETTING bu on to save the se ng.
Press and hold the SETTING bu on to exit the A mode. The display will return to the
19
set temperature.
Residen al Gas Water Heater Use and Care Guide • 51
OPERATION