Installation Guide
Operating Mode Descriptions
The operating modes can be changed by touching 
the desired mode icon on the Energy Smart
®
 Mod-
ule (See Figure 8). NOTE: All buttons on the Energy 
Smart
®
 Module are touch sensitive and require only a 
light touch to actuate.
Adjusting the Energy Smart
®
 Module/Operational Modes
Water Temperature Adjustment
IMPORTANT: Before attempting to adjust the thermostat, read the “Important Safety Information” section on page 4.  
If the instructions are not clear, contact a qualifi ed service technician. 
The water temperature can be adjusted from 80° F to 150° F. Use the Up and Down Buttons to set the 
desired temperature.
ENERGY SMART
®
 - This mode is 
used to save energy by monitoring 
usage and adjusting the set point 
to match the water draw usage pat-
tern (Temperature set point can be 
changed).
STANDARD - Pressing this button 
will allow the temperature set point 
to be set directly.
VACATION MODE - The controller 
adjusts the set point to approximately 
60
0
F. This mode is recommended 
when the water heater is not in use 
for a long period of time. This mode 
minimizes energy consumption 
and prevents the water heater from 
freezing during cold weather.
GRID ENABLED - Pressing this 
button will enable or disable a re-
quest for grid control (see page 19).
CONTROL PANEL LOCK - Holding 
this button for more than 3 seconds 
switches the lock mode on or off. 
When the User Module is locked, a 
symbol and “Lock” text will be visible 
on the display.
0
F/
0
C - This button switches the 
display to show the set temperature 
in Fahrenheit or Celsius.
Fault condition will display an “E”
followed by two digit fault code with 
Alert Icon fl ashing. (see diagnostic 
code chart page 20).
Element Functioning Icon - indicates 
power is on at either upper or lower 
element circuits and both are work-
ing properly.
°F/°C
°F/°C
F
GRID
ENABLED
VACATION
STANDARD
ENERGY
SMART
Control Panel 
Lock Icon
Operational
Mode Buttons
Element
Functioning
Icon
Water 
Temperature
Set Point
Temperature 
Down (Decrease)
Button
Temperature 
Up (Increase)
Button
LCD Display Panel 
Lock Button
Fahrenheit/
Celsius Temper-
ature Display
Button
Energy Smart®
Module (ESM)
Electronic
Thermostat
(ET)
NOTE: The Electronic Thermostat (ET) is designed so that it
may control the water heater without the Energy Smart® Module 
(ESM) being operated, see page 18.
Figure 8: Energy Smart®  Module (ESM)
LOCK
ELEMENT
ALERT
GRID
ELEMENT
Residen al Electric Water Heater Use and Care Guide • 17
INSTALLATION










