17
CONTROL SYSTEM OPERATION
HEATING ELEMENT OPERATION
FIGURE 3.
Depending on tank size and how they were ordered from the factory
the water heaters covered in this manual may be equipped with 1
to 5 electric heating elements. The illustration here shows how the
heating elements are numbered for control purposes and how the
openings for each heating element are physically located on the
water heater’s storage tank.
Control Options
The water heaters covered in this manual are factory ordered
On/Off Control:
cycled on simultaneously with each call for heat, however there is
a one second delay between elements being energized to reduce
end of each heating cycle.
Progressive Sequencing: Only available on models equipped
with multiple heating elements. Elements are energized
element on is rotated with each successive call for
the beginning of a heating cycle is the first element de-energized
cycles would progress as follows on a model equipped with 3
CONTROL SYSTEM FEATURES
Advanced Diagnostics
Plain English text and animated icons display detailed operational and
Economy Mode Operation
operating costs during unoccupied or peak demand periods.
CONTROL SYSTEM NAVIGATION
FIGURE 4.
Up & Down Buttons
various user settings.
Operational Buttons
screen. The function will change depending on what menu is currently
displayed or what menu item is selected. When no text appears on the
THE DESKTOP SCREEN
conditions and no user input for approximately 10 minutes the control
system will return to this screen automatically.
Model Information: Model information and menu titles are shown in
Tank Temperature:
immersion Temperature Probe.
Operating Set Point: Temperature at which the control system will
operating in the Economy Mode.