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18.5
NIGHT SETBACK SCREEN
To access the Night Setback screen press and hold the UP and DOWN buttons simultaneously for 5 seconds. Once pressed the trigger type,
On/OFF, should be shown in the upper digits of the display.
1)
Use the UP and DOWN buttons to display the desired trigger type, On or OFF and then press ENTER to make selection.
2)
The trigger number will then appear, On1 or OFF1 depending on previous selection, in the upper digits on the display. On1 is the
first trigger to lower the tank set point to the selected Night Setback Offet, see section 16.2.2. Press ENTER.
3)
Next the day of the week will appear in the lower digits of the display, (1 = Monday, 2 = Tuesday, ect.). Press UP or DOWN to
display the desired day of the week and then press ENTER to make selection.
4)
The time for that trigger will then appear in a 24 hour format with the hour digits flashing in the lower digits of the display. Press UP
or DOWN to display the desired hour and then press ENTER to make selection.
5)
The minute's digits will then start flashing. Press UP or DOWN to display the desired minutes. If all triggers have been set, press
and hold the ENTER button for 5 seconds. When Night Setback triggers are saved the burner will shut off and automatically re-
ignite. Otherwise press the ENTER button once. The lower digits will clear and the upper digits will display the trigger type again,
On or OFF. Go back to step 2 of this procedure to set all desired triggers.
18.6
SERVICE MODE SCREEN
To access the service mode screen press and hold the ENTER and UP buttons simultaneously for 5 seconds. Once pressed the heater will
ramp up to full rate and the display will show a spanner icon on the lower right. The outlet temperature will display in the upper digits and the
fan speed, in rpm, will show in the lower digits. The unit can be ramp down to minimum rate by pressing the ENTER button and then back to
full rate by pressing ENTER again. The UP and DOWN buttons can be used to scroll through the entire fan speed range. To exit service mode
press and hold the ENTER button for 5 seconds or press no buttons for 10 minutes.
18.7
ERROR LOG SCREEN
The water heater automatically stores the 10 most recent errors. To access the error log screen press and hold the DOWN button for 5 seconds.
Once pressed the upper digits should display "1", being the most recent. The lower digits will display the following information in 2 second
intervals.
1)
Error Code
2)
Hour and Minute of the error
3)
Date of the error
4)
Year of the error
To view the next errors press the UP button. To pause the information in the lower digits press and hold the ENTER button, when released the
next piece of information will display again in 2 second intervals. To exit the error log screen press and hold the DOWN button for 5 seconds.
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