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Figure 7
Temperature Control
System
Water Temperature Adjustment
The water temperature can be adjusted from 80°F to 150°F. Use the temperature control knob to change to the
desired temperature.
Operating Mode Descriptions
1. Smart Mode - The controller operates the water heater to maintain the customer’s selected temperature.
2. Energy Smart Mode - The controller adjusts the water temperature to lowest temperature required to meet the
household demands. This mode minimizes operating costs. The controller will not adjust temperature higher than
customer’s selected set point or lower than 115°F.
3. Low Temperature Mode - The controller limits the water temperature to 120°F or at the temperature selected
whichever is lower. See page 9 for more information on scalds.
4. Vacation/Cabin Mode - The controller adjusts the water temperature to approximately 50°F. This mode is
recommended when the water heater is not in use for a long period of time. This effectively turns the water heater
off and prevents the water from freezing.
Diagnostic Indicator Light Analysis
!
Light On - Indicates power applied and operating correctly.
!
Light Off - Indicates no power or a controller problem.
!
One Flash - Indicates the power was applied to water heater before the tank filled with water.
!
Two Flashes - Indicates the high limit temperature has been reached.
!
Three Flashes - Indicates a problem with the temperature sensors.
!
Four Flashes - Check upper element.
!
Five Flashes - Check lower element.
Reset Function
The reset function is used to restart the Temperature Control System after an error condition has been detected and
corrected.
Reset the control by pushing the red reset button on the controller. After a reset, the control performs self diagnostics
before normal operations begin. This takes approximately 10 minutes.
10
Operating the Temperature Control System